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1 , arsa.suyadnya@unud.ac.id 2 , oka.widyantara@unud.ac.id 3 ABSTRAK Penelitian ini bermaksud untuk membangun sebuah aplikasi yang dapat menjadi wadah untuk para anggota komunitas mancing. Aplikasi dibangun berdasarkan tiga modul utama... more
1 , arsa.suyadnya@unud.ac.id 2 , oka.widyantara@unud.ac.id 3 ABSTRAK Penelitian ini bermaksud untuk membangun sebuah aplikasi yang dapat menjadi wadah untuk para anggota komunitas mancing. Aplikasi dibangun berdasarkan tiga modul utama yaitu manajemen pengguna, manajemen spot mancing, dan manajemen diskusi. Aplikasi dibuat dengan menggunakan bahasa pemrograman java dengan platform android. Aplikasi ini juga memanfaatkan API (Application Programming Interface) yang dibangun dengan bahasa pemrograman PHP sebagai interface pengolahan data ke database. Pengujian aplikasi dilakukan dengan metode black box dan usability software, dengan hasil pengujian menyatakan bahwa tiga modul utama sudah berjalan dengan baik dan layak dipergunakan untuk menjadi sarana pertukaran informasi anggota komunitas mancing. ABSTRACT This research intends to build an application that can be a place for members of the fishing community. The application is built on three main modules: user management, spot fishin...
This research intends to determine the design of the implementation of the Internet of Things (IoT) for intelligent traffic monitoring system (ITMS) in the Denpasar city, Bali, Indonesia. The goal was to get a monitoring system that was... more
This research intends to determine the design of the implementation of the Internet of Things (IoT) for intelligent traffic monitoring system (ITMS) in the Denpasar city, Bali, Indonesia. The goal was to get a monitoring system that was able to visualize the traffic on the Web-based GPS/GPRS. IoT implementation focused on three main components, namely the acquisition of traffic by leveraging the capabilities of GPS as a sensor, GPRS-based data transport, and the design of a Web/GIS-based traffic monitoring software. The results show was possible to interconnect the GPS tracker, GPRS and Internet networks as IoT scheme for building ITMS in Denpasar
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Our research was develop web applications as media information for villages in Klungkung Regency, implementation strategy involves participation of village’s councilor, IT volunteer, Udayana University community services team, and... more
Our research was develop web applications as media information for villages in Klungkung Regency, implementation strategy involves participation of village’s councilor, IT volunteer, Udayana University community services team, and Klungkung Government. The research focused on the realization of village website based on Content Management System (CMS), and strategy training for website administrators. Main target, the website was built to inform the potential competitive, like menus: village profile, village potential, administration, statistics, regulations, budget transparency, services and village news. In the implementation phase, the study used a model of collaborative strategies, namely the construction of CMS and training conducted by Unud community services team, domain and hosting was prepared by Klungkung regency, and assistance administrator by IT volunteers. The website content training aimed at the entire councilor and IT volunteers. Research showed that used CMS website...
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Image enhancement using morphological operations for video based image is proposed in this paper. Morphological operations used are top-hat and bottom-hat transformation. Top-hat transformation is used to extract the bright areas, and... more
Image enhancement using morphological operations for video based image is proposed in this paper. Morphological operations used are top-hat and bottom-hat transformation. Top-hat transformation is used to extract the bright areas, and bottom-hat transformation is used to extract dark areas. Contrast enhancement processed by adding bright areas to original image and subtracting by dark areas. Morphological contrast enhancement applied to the preprocessing to generate output image for segmentation process. In this study, it conducted a comparison of the preprocessing based on the quality of clusters produced through the segmentation process. Silhouette coefficient is used to measure the validity of cluster generated in the segmentation process. The silhouette width value of the segmentation results are closed to 1 that expressed as a good cluster. Silhouette value of morphological contrast enhancement is higher than histogram equalization method. Silhouette width value of each preprocessing was 0.7729 and 0.5794, for morphological and CHE, respectively.
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The purpose of this paper is to gift a visualization of three-dimensional (3D) trees using L-System that has been researched before. In this research, he succeeded in making a two-dimensional (2D) tree visualization and stated that when... more
The purpose of this paper is to gift a visualization of three-dimensional (3D) trees using L-System that has been researched before. In this research, he succeeded in making a two-dimensional (2D) tree visualization and stated that when the iteration value or iteration value is larger than five, the 2D tree model results from associate iteration, it lost detail from the branch. This research is to develop the research results, namely the transformation from a 2D tree to a 3D tree. This research is intended to see what is needed in the transformation process from a two-dimensional tree to a three-dimensional tree using the L-System approach. The experiments carried out in three steps, the first step performing a two-dimensional visualization of the grammar origin from the previous research, the second step carrying out a three-dimensional transformation, and the third step making grammar modifications so that the 3D tree becomes realistic. The test results show that mathematically there are differences in the depiction of geometry in the cartesian coordinate with three axes, namely the x, y, and z axes, causing the transformation process from two-dimensional to three-dimensional trees to expand the use of symbols in the L-System. The extended production rules give more complex and more refined geometric shapes.
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In the coastal video image segmentation, images are partitioned into land and sea classes, and each of these classes could have different segmentation qualities. In order to cope with variations in image quality and opaque areas, this... more
In the coastal video image segmentation, images are partitioned into land and sea classes, and each of these classes could have different segmentation qualities. In order to cope with variations in image quality and opaque areas, this paper has proposed a multilevel threshold technique based on the Cuckoo Search (CS) algorithm as an optimization algorithm for selecting optimum threshold values. The optimum threshold values are determined by maximizing Otsu's or Kapur's objective function using CS algorithm. The CS algorithm uses McCulloch's method for Lévy flight generation and combined with Otsu's and Kapur's objective functions to analyze CS algorithm performance. Based on the evaluations of PSNR, MSE, FSIM and CPU time parameters, the McCulloch's method based on CS algorithm with Otsu's objective function is the most promising and computationally efficient for segmenting coastal video images.
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Pada penelitian ini menggunakan data digital yang dibangkitkan secara random dalam seleksi ciri tipe modulasi. Adapun tipe modulasi yang digunakan adalah QPSK, 16QAM dan 64QAM. Pada proses ekstrasi ciri menggunakan pendekatan statistical... more
Pada penelitian ini menggunakan data digital yang dibangkitkan secara random dalam seleksi ciri tipe modulasi. Adapun tipe modulasi yang digunakan adalah QPSK, 16QAM dan 64QAM. Pada proses ekstrasi ciri menggunakan pendekatan statistical feature set dengan metode Mean, Varian, Kurtosis dan Skewness, sedangkan seleksi ciri menggunakan Multi Class Support Vector Machine (SVM) dengan 5 kelas dalam klasifikasi diantaranya adalah (i) Bukan Fitur, (ii) Mean, (iii) Varian, (iv) Kurtosis dan (v) Skewness. Dalam mendeteksi tipe modulasi menggunakan Jaringan Syaraf Tiruan Backpropagation dengan proses pembelajaran menggunakan algoritma Conjugate Gradien Polak Ribiere. Dari hasil komparasi hasil pelatihan terhadap 401 data latih antara pembelajaran Conjugate Gradient Polak Ribiere dengan pembelajaran Gradient Discent adalah menggunakan Conjugate Gradient Polak Ribiere jauh lebih baik dengan nilai akurasi 86,20%, dan laju errornya 13,80% sedangkan pada pembelajaran dengan Conjugate Discent pada...
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Micro, Small, Medium Enterprise (MSME) in Indonesia, especially MSME business women in Denpasar – Balineeds innovation using information communicaton technology to expand their business. Then the enterprise canbe transformed to be... more
Micro, Small, Medium Enterprise (MSME) in Indonesia, especially MSME business women in Denpasar – Balineeds innovation using information communicaton technology to expand their business. Then the enterprise canbe transformed to be e-commerce. Thus, e-commerce workshop has been designet and implemented for MSMEbusiness women in Denpasar City in collaboration with Department of Women and Children empowerment,Denpasar City. From the workshop evaluation results, most of participants were satisfied and theirunderstanding with e-commerce was increased. As a result, the workshop increases their capacity building as aMSME business woman in term of e-commerce. This is shown by their statements that more than 70% of totalparticipant approved the workshop was very effective, and they eager to implement it in their business.
Research Interests: Business and Empowerment
This research intends to build an application that can be a place for members of the fishing community. The application is built on three main modules: user management, spot fishing management, and discussion management. Applications... more
This research intends to build an application that can be a place for members of the fishing community. The application is built on three main modules: user management, spot fishing management, and discussion management. Applications built using java programming language with android platform this application also uses API (Application Programming Interface) built with PHP programming language as interface processing data to database. Application testing is done by black box method and usability software, with the test result stated that the three main modules are running well and deserve to be used to be a means of information exchange for members of the fishing community.
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Perkembangan teknologi informasi yang begitu pesat dewasa menjadi salah satu jawaban bagi pemenuhan kebutuhan akan sistem informasi dari segala jenis organisasi. Kemampuan teknologi informasi dalam meningkatkan efisiensi dan efektifitas... more
Perkembangan teknologi informasi yang begitu pesat dewasa menjadi salah satu jawaban bagi pemenuhan kebutuhan akan sistem informasi dari segala jenis organisasi. Kemampuan teknologi informasi dalam meningkatkan efisiensi dan efektifitas proses bisnis dalam suatu organisasi menjadikan teknologi informasi dipercaya mampu menjadi alat bantu dalam mempercepat langkah organisasi mencapai tujuan bisnis. Universitas sebagai salah satu organisasi pendidikan tidak lepas dari pemanfaatan teknologi informasi ini. Pengembangan layanan teknologi informasi menjadi begitu penting untuk mendukung dan memberikan pelayanan maksimal pada sektor layanan pendidikan. Wujud nyata dari pengembangan teknologi informasi dalam layanan pendidikan berupa pengembangan sistem informasi akademik. Untuk mengetahui tingkat layanan yang telah berhasil diberikan bagi pengguna melalui implementasi sistem informasi akademik tentu memerlukan evaluasi dalam bentuk tata kelola sistem informasi. Angka COBIT telah menyedia...
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This paper propose a preprocessing techniques in lung segmentation scheme using Anisotropic Diffusion filters. The aim is to improve the accuracy, sensitivity and specificity results of segmentation. This method was chosen because it has... more
This paper propose a preprocessing techniques in lung segmentation scheme using Anisotropic Diffusion filters. The aim is to improve the accuracy, sensitivity and specificity results of segmentation. This method was chosen because it has the ability to detect the edge, namely in doing smoothing, this method can obscure noise, while maintaining the edges of objects in the image. Characteristics such as this is needed to process medical image filter, where the boundary between the organ and the background is not so clear. The segmentation process is done by K-means Clustering and Active Contour to segment the lungs. Segmentation results were validated using the Receiver Operating Characteristic (ROC) showed an increased accuracy, sensitivity and specificity, when compared with the results of segmentation in the previous paper, in which the preprocessing method used is Gaussian Lowpass filter.
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In this article, the authors present a new design of a Yagi antena which works on the LTE 1800MHz frequency. Yagi chosen because it is directional or transmits a focused direction. The design is based on a Yagi antena less inequality XL... more
In this article, the authors present a new design of a Yagi antena which works on the LTE 1800MHz frequency. Yagi chosen because it is directional or transmits a focused direction. The design is based on a Yagi antena less inequality XL LTE 4G infrastructure development in Bali that requires the use of an external antena to improve modem signal quality. In this makalah, Yagi antena design includes the design on the part of the reflector, driven and director. The author began designing using Yagi Calculator to obtain measurements of each element Yagi antena, then the authors will examine the feasibility of aligning the antena with the parameters of the simulation results using software MMANA-GAL with the actual antena design. The author analyzes some modem performance parameters include Signal Strength, RSSI, RSRP and RSRQ conducted at three locations and the results obtained from the performance improvement of the condition of medium and poor areas become excellent area. These resul...
Research Interests: Engineering and Physics
In order to improve the quality of broadband communications services, cellular providers have upgraded from 3.5G cellular technology to 4G Long Term Evolution (LTE). The consequence is the provider must build a communications... more
In order to improve the quality of broadband communications services, cellular providers have upgraded from 3.5G cellular technology to 4G Long Term Evolution (LTE). The consequence is the provider must build a communications infrastructure that is 4G LTE eNodeB network but efficiently in terms of financing. The solution that can be taken is to utilize a Base Transceiver Station (BTS) of the existing GSM network as 4G LTE eNodeB. Due to the characteristics of different networks, not all of the existing BTS can be used. Therefore, this paper has conducted a study of determining optimal number of base stations for the eNodeB in Denpasar using Harmony Search (HS) methods. In the implementation, the HS will optimize points of the base stations based on the analysis of total path loss that was calculated using Welfisch-Ikegami propagation models. The simulation results showed 189 of the 211 existing BTSs chosen as optimal 4G LTE eNodeBs having a total pathloss value of 117,087.18 dB. In other words, there are 22 existing BTSs are not considered optimal and the total pathloss value is reduced by 3169.43 dB.
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Wyner-Ziv video coding (WZVC) is a video coding paradigm allows exploiting the source statistic, partially or totally, at the decoder to reduce the computational burden at the encoder. Side information (SI) generation is a key function in... more
Wyner-Ziv video coding (WZVC) is a video coding paradigm allows exploiting the source statistic, partially or totally, at the decoder to reduce the computational burden at the encoder. Side information (SI) generation is a key function in the WZVC decoder, and plays an important role in determining the performance of the codec. In this context, this paper proposes decoding approach with unsupervised learning of two motion fields to improve the accuracy of generation of soft SI on WZVC codec. The method used in this paper is based on the generalization of Expectation-Maximization (EM) algorithm, in which the learning process of motion fields used the LowDensity Parity-Check (LDPC) decoder soft output values and two frames previously decoded as initial SI. In this method, the decoder always updated the accuracy of soft SI by renewing two motion fields iteratively. The goal is to minimize the transmission of the bits required by the decoder to estimate frame WZ. The experimental result...
Abstract Wyner-Ziv video coding is a new paradigm in video coding based on Slepian-Wolf and Wyner-Ziv theorem. Not like standard video codec, Wyner-Ziv video coding estimates motion in decoder in order to simplify encoder. Among many... more
Abstract Wyner-Ziv video coding is a new paradigm in video coding based on Slepian-Wolf and Wyner-Ziv theorem. Not like standard video codec, Wyner-Ziv video coding estimates motion in decoder in order to simplify encoder. Among many motion estimation methods that already applied, Expectation-Maximization algorithm is the most effective one. This motion estimation algorithm is block based, where all pixels within blocks share common motion probability distribution which leads to less effective side information generation. This ...
Research Interests: Mathematics, Computer Science, Artificial Intelligence, Information Technology, Computer Vision, and 13 moreComplexity Theory, Video Coding, Probability, Motion estimation, Motion compensation, Encoder, Video Codec, Expectation Maximization, Interpolation, Expectation Maximization (EM) Algorithm, Codec, Probability Distribution, and Bicubic interpolation
Page 1. Modeling Wireless Visual Sensor Network with a Low Energy Consumption for Desired Image Quality and View Point NP Sastra*, DM Wiharta, I MO Widyantara, Wirawan Multimedia Communication Laboratory Electrical ...
Pemanfaatan Teknologi Informasi pada Irigasi Subak di Bali diharapkan mampu membagi air secara merata ke seluruh pertanian yang membutuhkannya, dengan demikian nantinya tidak ada lahan pertanian yang kelebihan air ataupun kekurangan air,... more
Pemanfaatan Teknologi Informasi pada Irigasi Subak di Bali diharapkan mampu membagi air secara merata ke seluruh pertanian yang membutuhkannya, dengan demikian nantinya tidak ada lahan pertanian yang kelebihan air ataupun kekurangan air, tidak ada lahan pertanian yang subur atau kurang subur karena faktor air dengan hasil yang diharapkan mampu menghasilkan produksi pertanian yang maksimal. Penelitian ini menggunakan sensor Kelembaban Tanah, Suhu Tanah dan pH tanah yang diharapkan mampu mengontrol kebutuhan air untuk lahan pertanian yang dialiri secara otomatis oleh sistem dari hasil laporan yang diterima sensor dan diterima server dengan menggunakan Wireless Sensor Network. Pembagian air akan dilakukan sistem setelah menerima permintaan kebutuhan air dari sensor yang tertanam di lahan pertanian dengan menggunakan logika fuzzy sehingga pebagian air sama dengan Sistem pengairan Subak di Bali namun lebih terkontrol, efektip dan efisien sehingga tingkat kesuburan tanah yang diperlukan t...
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Abstrak Studi ini telah melakukan evaluasi penerapan teknik brightness adjustment untuk memperbaiki kekontrasan citra dalam rangka ekstraksi garis pantai pada sistem monitoring deteksi garis pantai berbasis video. Pada sistem monitoring... more
Abstrak Studi ini telah melakukan evaluasi penerapan teknik brightness adjustment untuk memperbaiki kekontrasan citra dalam rangka ekstraksi garis pantai pada sistem monitoring deteksi garis pantai berbasis video. Pada sistem monitoring ini, mekanisme deteksi garis pantai dilakukan dengan pengenalan objek daratan dan laut pada citra video. Perubahan kondisi laut akibat perubahan cuaca menyebabkan terjadinya perubahan tingkat kekontrasan pada citra video pantai. Perubahan kekontrasan akan menyebabkan deteksi garis pantai menjadi tidak akurat. Teknik brightness adjustment diterapkan pada proses pra-pengolahan citra untuk menghasilkan tingkat kekontrasan citra yang stabil pada segala kondisi sehingga sistem monitoring pantai dapat mengekstraksi garis pantai secara akurat. Teknik brightness adjustment dapat menyesuaikan kecerahan citra pantai dengan mengatur nilai ambang batas atas dan bawah setiap intensitas piksel. Penelitian ini menggunakan 3 (tiga) sampel citra video uji yang diambi...
Paper ini merancang sebuah skema kompresi citra medis menggunakan DWT dengan mother wavelet Coiflet dan Symlet. Proses thresholding dan kuantisasi menjadi kunci terjadinya lossy compression di skema ini, dan data outputnya akan dikodekan... more
Paper ini merancang sebuah skema kompresi citra medis menggunakan DWT dengan mother wavelet Coiflet dan Symlet. Proses thresholding dan kuantisasi menjadi kunci terjadinya lossy compression di skema ini, dan data outputnya akan dikodekan dengan pengkodean Huffman atau Arithmetic. Terdapat empat kombinasi codec berbeda yakni: Coiflet-Huffman, Coiflet-Arithmetic, Symlet-Huffman yang masing-masing akan dianalisa kinerja kompresinya berdasarkan PSNR dan rasio kompresi. Pengujian kompresi menggunakan 3 citra medis grayscale berdimensi 160x160 piksel. Hasil pengujian menunjukan codec yang mampu menghasilkan PSNR dan rate paling optimal adalah codec Symlet-Arithmetic dengan nilai threshold yang dianjurkan yakni kurang dari 12. Pemberian nilai threshold diatas 12 akan menyebabkan PSNR citra rekonstruksi berada dibawah standar nilai minimum PSNR citra digital sebesar 30 dB.
Algoritma enkripsi adalah pertahanan pertama terhadap serangan jaringan. Wired Equivalent Privacy (WEP) dan Wi-Fi Protected Access (WPA) digunakan untuk mengamankan jaringan pada standar 802.11, akan tetapi enkripsi ini memiliki banyak... more
Algoritma enkripsi adalah pertahanan pertama terhadap serangan jaringan. Wired Equivalent Privacy (WEP) dan Wi-Fi Protected Access (WPA) digunakan untuk mengamankan jaringan pada standar 802.11, akan tetapi enkripsi ini memiliki banyak kelemahan. Aplikasi-aplikasi penetrasi berbasis linux seperti aircrack, airodump, aireplay mampu memanfaatkan kelemahan tersebut untuk dapat terkoneksi ke dalam jaringan dan bahkan mencuri data. Sayangnya aplikasi penetrasi berbasis text mengakibatkan kesulitan tersendiri bagi pengguna umum karena harus mengingat format perintah pada setiap aplikasi. Penelitian ini berhasil menyederhanakan penggunaan aplikasi penetrasi berbasis text dengan cara membangun sebuah antarmuka menggunakan QTdesigner serta memberikan review proses penetrasi terhadap keamanan WEP dan WPA menggunakan antar muka yang diusulkan.
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Paper ini mengusulkan contrast stretching sebagai perbaikan kualitas citra untuk meningkatkan hasil segmentasi pada proses segmentasi video. Data video yang digunakan merupakan video pemantauan aktifitas pergerakan garis pantai. Frame... more
Paper ini mengusulkan contrast stretching sebagai perbaikan kualitas citra untuk meningkatkan hasil segmentasi pada proses segmentasi video. Data video yang digunakan merupakan video pemantauan aktifitas pergerakan garis pantai. Frame dari video yang digunakan memiliki komposisi cahaya matahari berbeda-beda sesuai dengan waktu akuisisi data. Dibutuhkan suatu teknik untuk mengatasi pengaruh cahaya matahari pada frame video. Contrast stretching diimplementasikan untuk memperbaiki nilai kontras pada frame sehingga obyek pada frame terlihat jelas. Dengan obyek yang terlihat jelas pada frame dapat meningkatkan hasil dari proses segmentasi. Pengujian implementasi contrast stretching sebagai preprocessing pada proses segmentasi dilakukan dengan metode silhouette coefficient. Implementasi contrast stretching sebagai preprocessing dalam segmentasi citra dapat menghasilkan segmentasi lebih baik dibandingkan tanpa preprocessing. Hal tersebut dinyatakan berdasarkan nilai silhouette width dari m...
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Intisari— Sebuah sistem pakar dapat digunakan sebagai opini kedua untuk pembanding atau pendukung diagnose dari pakar. Penggalian data digunakan untuk mendapatkan informasi diterapkan pada Sistem ini. Sedangkan dalam melakukan... more
Intisari— Sebuah sistem pakar dapat digunakan sebagai opini kedua untuk pembanding atau pendukung diagnose dari pakar. Penggalian data digunakan untuk mendapatkan informasi diterapkan pada Sistem ini. Sedangkan dalam melakukan pembelajaran menggunakan Jaringan Saraf Tiruan yang menerapkan metode Extreme Learning Machine sehingga dapat mempercepat pembelajaran hingga ribuan kali lipat. Dalam makalah ini, pengembangan perangkat lunak yang dilakukan untuk menguji fungsi aktivasi yang digunakan dalam melakukan pembelajaran dan variable yang digunakan sebagai input pada saat pembelajaran.
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Intisari— Penajaman citra adalah teknik optimasi citra dengan cara mengkombinasi dua citra satelit dengan mengambil kelebihan yang dari tiap citra sehingga citra output memiliki kualitas spektral dan spasial yang baik. Penajaman citra... more
Intisari— Penajaman citra adalah teknik optimasi citra dengan cara mengkombinasi dua citra satelit dengan mengambil kelebihan yang dari tiap citra sehingga citra output memiliki kualitas spektral dan spasial yang baik. Penajaman citra dilakukan sebagai alternative untuk memudahkan pengenalan suatu objek, terlebih lagi untuk satelit Landsat mempunyai banyak band yang mampu dijadikan sampel untuk proses penajaman citra. Metode yang digunakan dalam penajaman citra salah satunya adalah Transformasi Brovey. Metode ini banyak digunakan karena sangat simple dan mudah dalam pembuatan algoritmanya. Band yang digunakan dalam proses penajaman citra yaitu composite band (red, green, dan blue) dengan pankromatik band dari satelit landsat 8. Hasil dari proses penajaman citra adalah citra dengan spectral yang tinggi didapat dari citra composite serta nilai spasial yang didapat dari citra pankromatik. Analisa hasil dari penajaman citra dengan metode Transformasi Brovey dilakukan dengan membandingka...
Proses penggambaran bagian organ tubuh manusia, untuk dapat menemukan penyakit apa saja yang ada pada bagian tubuh yang disebabkan oleh bakteri dan virus disebut dengan Citra Medis. CT Scanning, MRI, X-Ray, merupakan citra medis yang... more
Proses penggambaran bagian organ tubuh manusia, untuk dapat menemukan penyakit apa saja yang ada pada bagian tubuh yang disebabkan oleh bakteri dan virus disebut dengan Citra Medis. CT Scanning, MRI, X-Ray, merupakan citra medis yang banyak ditemui pada umumnya masih berupa data analog. Banyaknya informasi penting yang terdapat pada citra medis menyebabkan ukuran file citra medis tergolong besar. Kebutuhan media penyimpanan data yang besar dan waktu pengiriman yang lama disebabkan oleh data citra medis yang berukuran besar. Penelitian ini bertujuan untuk merealisasikan sebuah codec citra medis berbasis fraktal dengan mengujikan kinerjanya pada beberapa teknik entropy coding. Analisis penelitian ini didasarkan pada PSNR, Size Image dan Time Taken yang dibutuhkan untuk melakukan kompresi terhadap satu buah gambar. Kesimpulan yang didapat pada analisis ini terlihat bahwa metode Arithmetic lebih memiliki keunggulan dalam bidang PSNR, Rasio Kompresi, Size Image yang dihasilkan beserta Ti...
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Medical imaging is a presentment of human organ parts. Medical imaging is saved on a film; therefore, it needs a big saving quota. Compressing is a process to remove redundancy from a piece of information without reducing its quality.... more
Medical imaging is a presentment of human organ parts. Medical imaging is saved on a film; therefore, it needs a big saving quota. Compressing is a process to remove redundancy from a piece of information without reducing its quality. This study recommended compressed medical image with DWT (Discrete Wavelet Transform) with adaptive threshold added and entropy copying with the Run Length Encoding (RLE) coding. This study is comparing several parameters, such as compressed ratio and compressed image file size, and PSNR (Peak Signal to Noise Ratio) for analyzing the quality of reconstructive image. The study showed that the comparison of rate, compressed ratio, and PSNR tracing of Haar and Daubechies doesn’t have a significant difference. Comparison of rate, compressed ratio, and PSNR tracing on the hard and soft threshold is the rate of the sold threshold is lower than the hard threshold. The optimal outcome of this study is to use a soft threshold.
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The use of biometrics in various issues of data security, transactions, privacy has been widely used. Regarding security, surely the level of accuracy in one's self-recognition must be accurate. The palmprint is one of biometrics... more
The use of biometrics in various issues of data security, transactions, privacy has been widely used. Regarding security, surely the level of accuracy in one's self-recognition must be accurate. The palmprint is one of biometrics which has various unique characteristics. These characteristics include geometrical features such as length, width, and area of the palmprint, characteristics of main lines such as heart lines, headlines, and lifelines, tangled or weak lines, delta dot characteristics, and minus characteristics. Main lines and tangled lines, which are often referred to as line features, have several advantages over other biometric features, such as they can be obtained from low-resolution images, are difficult to duplicate, and are stable because they have experienced slight changes over a long period of time. This research introduces the method of Fermat's Spirals in the extraction of the features of the palmprint which are represented in the time series curve. Tes...
Pada dasarnya, teknologi kompresi citra merupakan langkah dasar untuk memampatkan citra sehingga mampu ditransmisikan dengan lebih cepat dan menghemat ruang penyimpanan dalam media penyimpan. Hal ini merupakan sebuat terobosan yang... more
Pada dasarnya, teknologi kompresi citra merupakan langkah dasar untuk memampatkan citra sehingga mampu ditransmisikan dengan lebih cepat dan menghemat ruang penyimpanan dalam media penyimpan. Hal ini merupakan sebuat terobosan yang diciptakan pada tahun 1920. Penelitian ini merupakan penelitian terapan yang berfokus pada penerapan algoritma JPEG berdasarkan nilai PSNR. Penelitian ini menggunakan data citra X-Ray sebagai data input, dimana citra tersebut akan dicari rasio kompresi optimalnya dari 9 rasio kompresi (10%-90%). Sebanyak 10 data uji digunakan. Dari tabel hasil pengujian sistem menggunakan citra uji, dapat dilihat bahwa karakteristik PSNR mampu menentukan rasio kompresi citra medis secara optimal. dan semakin tinggi rasio kompresi citra yang diterapkan pada citra uji, maka semakin tinggi kulitas dari citra hasil rekonstruksi. Hal tersebut dapat dilihat pada tabel nilai PSNR, dimana nilai PSNR terjadi peningkatan pada tiap rasio kompresinya.
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Voice over Internet Protocol (VoIP) is a technology that can send real-time data with IP-based networks (Internet Protocol). In VoIP technology with wireless network has several problems that cause the performance of the network to be... more
Voice over Internet Protocol (VoIP) is a technology that can send real-time data with IP-based networks (Internet Protocol). In VoIP technology with wireless network has several problems that cause the performance of the network to be varied due to the QoS (Quality of Service) include delay, jitter, packet loss and MOS that affect the wireless network. This research uses G.711?, G.711a and G.729 codec based on SIP and IAX server on wireless network which then the QoS result from each codec compared with ITU-T standard which become the reference of whether the network is good or not so that later can realized on campus. In the research results, QoS on wireless IEEE 802.11 b has linear results, whereas QoS wireless in VoIP has fluctuating results because the use of codecs in VoIP on each codec has a large bitrate and different coding techniques and is a feature of wireless networks. The QoS comparison of three codecs produced the best G711 Q7S codecs because the G.711 codec has a bitr...
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VoIP is a technology used to communicate voice remotely and directly using data communication lines with TCP / IP protocol. But basically, VoIP communication does not guarantee data security when doing communication. A very important... more
VoIP is a technology used to communicate voice remotely and directly using data communication lines with TCP / IP protocol. But basically, VoIP communication does not guarantee data security when doing communication. A very important security system is added in VoIP communications to maintain the confidentiality of communication, so that communication can not be recorded and played back. To build a security when communicating VoIP, then in this study added an SRTP-TLS security system. The study was conducted on wireless networks by comparing the security of data communications when using the SRTP-TLS security system and without using a security system.Keywords: Wireless, Security System, VoIP
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This study has evaluated the application of brightness adjustment technique to improve image contrast in the framework of coastline extraction on video-based shoreline monitoring system. In this monitoring system, the shoreline detection... more
This study has evaluated the application of brightness adjustment technique to improve image contrast in the framework of coastline extraction on video-based shoreline monitoring system. In this monitoring system, the shoreline detection mechanism is done by introducing the land and sea objects in the video image. Changes in sea conditions due to weather changes cause a change in the contrast in the coastal image. The change in contrast will lead to inaccurate coastline detection. The brightness adjustment technique is applied to the image pre-processing to produce stable contrast in all conditions so that the coastal monitoring system can extract the coastline accurately. The brightness adjustment technique can adjust the brightness of the coastal image by setting the upper and lower threshold values of each pixel intensity. This study used 3 (three) sample video test images taken on morning, noon and afternoon to obtain different video image characteristics. The simulation results...
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This paper proposed Canny edge detection to detected saliency map on traffic sign. The edge detection functions by identifying the bounds from an object on an image. The edge of an image is an area that has a strong intensity of light.The... more
This paper proposed Canny edge detection to detected saliency map on traffic sign. The edge detection functions by identifying the bounds from an object on an image. The edge of an image is an area that has a strong intensity of light.The pixel intensity of an image changes from low to high values or otherwise. Detecting the edge of an image significantly will decrease the amount of data and filters insignificant information by not deleting necessary structure from the image. The image used for this paper is a digital capture of a traffic sign with a background. The result of this study shows that Canny edge detection creates saliency map from the traffic sign and separates the road sign from the background. The image result tested by calculating the saliency distance between a tested image and trained image using normalized Euclidean distance. The value ofnormalized Euclidean distance is set between 0 to 2. The testing process is done by calculating the nearest distance between the...
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This paper aims to analyze Internet-based streaming video service in the communication media with variable bit rates. The proposed scheme on Dynamic Adaptive Streaming over HTTP (DASH) using the internet network that adapts to the... more
This paper aims to analyze Internet-based streaming video service in the communication media with variable bit rates. The proposed scheme on Dynamic Adaptive Streaming over HTTP (DASH) using the internet network that adapts to the protocol Hyper Text Transfer Protocol (HTTP). DASH technology allows a video in the video segmentation into several packages that will distreamingkan. DASH initial stage is to compress the video source to lower the bit rate video codec uses H.26. Video compressed further in the segmentation using MP4Box generates streaming packets with the specified duration. These packages are assembled into packets in a streaming media format Presentation Description (MPD) or known as MPEG-DASH. Streaming video format MPEG-DASH run on a platform with the player bitdash teritegrasi bitcoin. With this scheme, the video will have several variants of the bit rates that gave rise to the concept of scalability of streaming video services on the client side. The main target of ...
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Teknologi informasi saat ini memiliki peranan yang sangat penting dalam dunia pemerintahan. Pemanfaatan teknologi informasi yang ada harus diimbangi dengan pengaturan dan pengelolaan yang tepat sehingga memberikan manfaat yang efektif... more
Teknologi informasi saat ini memiliki peranan yang sangat penting dalam dunia pemerintahan. Pemanfaatan teknologi informasi yang ada harus diimbangi dengan pengaturan dan pengelolaan yang tepat sehingga memberikan manfaat yang efektif bagi penggunanya. Pada penelitian ini membahas mengenai audit tata kelola SIMDA Keuangan di lingkungan kantor Pemerintah Daerah Kabupaten Klungkung dengan menggunakan framework COBIT 4.1 domain PO (Plant and Organise) sub domai PO1, PO2 dan PO7 dan Framework ITILV3. Tujuan dari penelitian ini adalah untuk meningkatkan manfaat aplikasi SIMDA keuangan dengan standar COBIT 4.1 dan ITIL V3 dan nantinya dapat menghasilkan suatu rekomendasi pengelolaan aplikasi SIMDA Keuangan dalam upaya peningkatan kualitas tata kelola TI yang dimiliki. Metode pengumpulan data yang digunakan dalam penelitian ini adalah observasi dan kuesioner dengan responden yang telah ditentukan berdasarkan tugas dan fungsinya. Responden audit tata kelola SIMDA Keuangan di lingkungan Kan...
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ABSTRACT—Network traffic internet is data communication in a network characterized by a set of statistical flow with the application of a structured pattern. Structured pattern in question is the information from the packet header data.... more
ABSTRACT—Network traffic internet is data communication in a network characterized by a set of statistical flow with the application of a structured pattern. Structured pattern in question is the information from the packet header data. Proper classification to an Internet traffic is very important to do, especially in terms of the design of the network architecture, network management and network security. The analysis of computer network traffic is one way to know the use of the computer network communication protocol, so it can be the basis for determining the priority of Quality of Service (QoS). QoS is the basis for giving priority to analyzing the network traffic data. In this study the classification of the data capture network traffic that though the use of K-Neaerest Neighbor algorithm (K-NN). Tools used to capture network traffic that wireshark application. From the observation of the dataset and the network traffic through the calculation process using K-NN algorithm obta...
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Picture (image) is a media that used for storing visual data, for example, two-dimensional images are often used to store an incident. Images on the internet media growth very rapidly. There are a lot of image, video, text or other... more
Picture (image) is a media that used for storing visual data, for example, two-dimensional images are often used to store an incident. Images on the internet media growth very rapidly. There are a lot of image, video, text or other content on the Internet. Image Index and image retrieval again become a topic of research in the last decade in which concentrated on how to get the meaning of an information contained in an image. Three methods outlined in the search for an image, the text-based image retrieval, content-based image retrieval and indexing images in the order of language. This study focuses on the preparation of the features of an image based on color and texture. Features colors using the average value of Hue image, texture features using Gray Level occurance Matrix (GLCM). Color, texture, and shape extraction technique resulted in eighteen (18) feature that can be used as features in the process of Clustering.DOI: 10.24843/MITE.1601.12
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This paper intends to explain the development of Coastal Video Monitoring System (CoViMoS) with the main characteristics including low-cost and easy implementation. CoViMoS characteristics have been realized using the device IP camera for... more
This paper intends to explain the development of Coastal Video Monitoring System (CoViMoS) with the main characteristics including low-cost and easy implementation. CoViMoS characteristics have been realized using the device IP camera for video image acquisition, and development of software applications with the main features including detection of shoreline and it changes are automatically. This capability was based on segmentation and classification techniques based on data mining. Detection of shoreline is done by segmenting a video image of the beach, to get a cluster of objects, namely land, sea and sky, using Self Organizing Map (SOM) algorithms. The mechanism of classification is done using K-Nearest Neighbor (K-NN) algorithms to provide the class labels to objects that have been generated on the segmentation process. Furthermore, the classification of land used as a reference object in the detection of costline. Implementation CoViMoS system for monitoring systems in Cucukan...