With the advancement in robotics technology, unmanned agricultural robotics are becoming widely u... more With the advancement in robotics technology, unmanned agricultural robotics are becoming widely used in precision agriculture. Engineers equipped with robotics knowledge are highly demanded by today's high-efficiency-high-producing agricultural industry. It is critical to offer agricultural robotics training to ensure that undergraduate students are adequately prepared for the agricultural industry job market. To answer this demand, the authors build a fully operated agricultural robotics lab within Prairie View A&M University (PVAMU). An Unmanned Agricultural Robotics System (UARS) was designed, constructed, and operated in both classrooms and fields. The UARS is a precision agriculture vehicle platform for mounting multiple sensors, including crop height sensor, crop canopy analyzer, normalized difference vegetative index (NDVI) sensor, multispectral camera, and hyperspectral radiometer. Such a ground-based automatic crop condition measuring system also will help farmers maxim...
The advances in mobile computing, location sensing, and wireless networking have led to a new cla... more The advances in mobile computing, location sensing, and wireless networking have led to a new class of computing, namely location-aware computing. Location-awareness concerns the use of information about a person’s geographical location to provide more relevant information and services to that person. Location-aware systems play a central role in ubiquitous computing to sense and react to real-world context. The aim of this paper is to provide a brief introduction to location-aware computing.
Applied Computational Intelligence and Soft Computing, 2020
Recently, human being’s curiosity has been expanded from the land to the sky and the sea. Besides... more Recently, human being’s curiosity has been expanded from the land to the sky and the sea. Besides sending people to explore the ocean and outer space, robots are designed for some tasks dangerous for living creatures. Take the ocean exploration for an example. There are many projects or competitions on the design of Autonomous Underwater Vehicle (AUV) which attracted many interests. Authors of this article have learned the necessity of platform upgrade from a previous AUV design project, and would like to share the experience of one task extension in the area of fish detection. Because most of the embedded systems have been improved by fast growing computing and sensing technologies, which makes them possible to incorporate more and more complicated algorithms. In an AUV, after acquiring surrounding information from sensors, how to perceive and analyse corresponding information for better judgement is one of the challenges. The processing procedure can mimic human being’s learning r...
International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications, 2013
ABSTRACT This paper introduces a laser scanner based measurement system for measuring crop/tree g... more ABSTRACT This paper introduces a laser scanner based measurement system for measuring crop/tree geometric characteristics. The measurement system, which is mounted on a Unmanned Ground Vehicle (UGV), contains a SICK LMS511 PRO laser scanner, a GPS, and a computer. The LMS511 PRO scans objects within distance up to 80 meters with a scanning frequency of 25 up to 100Hz and with an angular resolution of 0.1667° up to 1°. With an Ethernet connection, this scanner can output the measured values in real time. The UGV is a WIFI based remotely controlled agricultural robotics system. During field tests, the laser scanner was mounted on the UGV vertically to scan crops or trees. The UGV moved along the row direction with certain average travel speed. The experimental results show that the UGV's travel speed significantly affects the measurement accuracy. A slower speed produces more accurate measuring results. With the developed measurement system, crop/tree canopy height, width, and volume can be accurately measured in a real-time manner. With a higher spatial resolution, the original data set may even provide useful information in predicting crop/tree growth and productivity. In summary, the UGV based measurement system developed in this research can measure the crop/tree geometric characteristics with good accuracy and will work as a step stone for our future UGV based intelligent agriculture system, which will include variable rate spray and crop/tree growth and productivity prediction through analyzing the measured results of the laser scanner system.
ASME 2006 Frontiers in Biomedical Devices Conference, 2006
ABSTRACT The change of blood vessel is very important in the biomedical research, because creatur... more ABSTRACT The change of blood vessel is very important in the biomedical research, because creatures, including human beings tempt to adjust themselves to fit for the new environments. For example, if a tumor was found inside a human body and diagnosed as cancer, to get rid of this tumor is important, but to prevent the tumor to reach out to other organs is more crucial. The goal of starving the tumor can be achieved by preventing new blood vessels to grow into it. Another example is the wound healing which can be enhanced by encouraging blood vessels to reach the damaged parts. Both applications focus on the trace of the growing blood vessels. There are several trials on how to trace blood vessels, we can category them into three main approaches: window-based methods, classifier-based methods and tracking-based methods [1]. In this paper, the authors explore the usage of RDWT in this specific area of biomedical image application. Redundant wavelet transform (RDWT) has the property that all of the RDWT coefficients locate at the same spatial location as in the original spatial image, which makes it preferable for feature extraction and signal analysis [2]. With the already successful applications of RDWT in image processing and video coding [3,4], the authors built a new system to segment blood vessels using RDWT coefficient mask.
With the advancement in robotics technology, unmanned agricultural robotics are becoming widely u... more With the advancement in robotics technology, unmanned agricultural robotics are becoming widely used in precision agriculture. Engineers equipped with robotics knowledge are highly demanded by today's high-efficiency-high-producing agricultural industry. It is critical to offer agricultural robotics training to ensure that undergraduate students are adequately prepared for the agricultural industry job market. To answer this demand, the authors build a fully operated agricultural robotics lab within Prairie View A&M University (PVAMU). An Unmanned Agricultural Robotics System (UARS) was designed, constructed, and operated in both classrooms and fields. The UARS is a precision agriculture vehicle platform for mounting multiple sensors, including crop height sensor, crop canopy analyzer, normalized difference vegetative index (NDVI) sensor, multispectral camera, and hyperspectral radiometer. Such a ground-based automatic crop condition measuring system also will help farmers maxim...
The advances in mobile computing, location sensing, and wireless networking have led to a new cla... more The advances in mobile computing, location sensing, and wireless networking have led to a new class of computing, namely location-aware computing. Location-awareness concerns the use of information about a person’s geographical location to provide more relevant information and services to that person. Location-aware systems play a central role in ubiquitous computing to sense and react to real-world context. The aim of this paper is to provide a brief introduction to location-aware computing.
Applied Computational Intelligence and Soft Computing, 2020
Recently, human being’s curiosity has been expanded from the land to the sky and the sea. Besides... more Recently, human being’s curiosity has been expanded from the land to the sky and the sea. Besides sending people to explore the ocean and outer space, robots are designed for some tasks dangerous for living creatures. Take the ocean exploration for an example. There are many projects or competitions on the design of Autonomous Underwater Vehicle (AUV) which attracted many interests. Authors of this article have learned the necessity of platform upgrade from a previous AUV design project, and would like to share the experience of one task extension in the area of fish detection. Because most of the embedded systems have been improved by fast growing computing and sensing technologies, which makes them possible to incorporate more and more complicated algorithms. In an AUV, after acquiring surrounding information from sensors, how to perceive and analyse corresponding information for better judgement is one of the challenges. The processing procedure can mimic human being’s learning r...
International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications, 2013
ABSTRACT This paper introduces a laser scanner based measurement system for measuring crop/tree g... more ABSTRACT This paper introduces a laser scanner based measurement system for measuring crop/tree geometric characteristics. The measurement system, which is mounted on a Unmanned Ground Vehicle (UGV), contains a SICK LMS511 PRO laser scanner, a GPS, and a computer. The LMS511 PRO scans objects within distance up to 80 meters with a scanning frequency of 25 up to 100Hz and with an angular resolution of 0.1667° up to 1°. With an Ethernet connection, this scanner can output the measured values in real time. The UGV is a WIFI based remotely controlled agricultural robotics system. During field tests, the laser scanner was mounted on the UGV vertically to scan crops or trees. The UGV moved along the row direction with certain average travel speed. The experimental results show that the UGV's travel speed significantly affects the measurement accuracy. A slower speed produces more accurate measuring results. With the developed measurement system, crop/tree canopy height, width, and volume can be accurately measured in a real-time manner. With a higher spatial resolution, the original data set may even provide useful information in predicting crop/tree growth and productivity. In summary, the UGV based measurement system developed in this research can measure the crop/tree geometric characteristics with good accuracy and will work as a step stone for our future UGV based intelligent agriculture system, which will include variable rate spray and crop/tree growth and productivity prediction through analyzing the measured results of the laser scanner system.
ASME 2006 Frontiers in Biomedical Devices Conference, 2006
ABSTRACT The change of blood vessel is very important in the biomedical research, because creatur... more ABSTRACT The change of blood vessel is very important in the biomedical research, because creatures, including human beings tempt to adjust themselves to fit for the new environments. For example, if a tumor was found inside a human body and diagnosed as cancer, to get rid of this tumor is important, but to prevent the tumor to reach out to other organs is more crucial. The goal of starving the tumor can be achieved by preventing new blood vessels to grow into it. Another example is the wound healing which can be enhanced by encouraging blood vessels to reach the damaged parts. Both applications focus on the trace of the growing blood vessels. There are several trials on how to trace blood vessels, we can category them into three main approaches: window-based methods, classifier-based methods and tracking-based methods [1]. In this paper, the authors explore the usage of RDWT in this specific area of biomedical image application. Redundant wavelet transform (RDWT) has the property that all of the RDWT coefficients locate at the same spatial location as in the original spatial image, which makes it preferable for feature extraction and signal analysis [2]. With the already successful applications of RDWT in image processing and video coding [3,4], the authors built a new system to segment blood vessels using RDWT coefficient mask.
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