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ORCIDRoumen Kountchev
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2020 – today
- 2023
[j18]Roumen Kountchev, Rumen P. Mironov, Roumiana Kountcheva:
Analysis of the Recursive Locally-Adaptive Filtration of 3D Tensor Images. Symmetry 15(8): 1493 (2023)- 2022
- [j17]Roumen K. Kountchev, Rumen P. Mironov, Roumiana A. Kountcheva:
Third-Order Tensor Decorrelation Based on 3D FO-HKLT with Adaptive Directional Vectorization. Symmetry 14(5): 854 (2022) - [j16]Roumiana A. Kountcheva, Rumen P. Mironov, Roumen K. Kountchev:
MLTSP: New 3D Framework, Based on the Multilayer Tensor Spectrum Pyramid. Symmetry 14(9): 1909 (2022) - [j15]Roumen Kountchev
, Alexander Bekiarski, Rumen P. Mironov, Snezhana Pleshkova:
A Method for Local Contrast Enhancement of Endoscopic Images Based on Color Tensor Transformation into a Matrix of Color Vectors' Modules Using a Sliding Window. Symmetry 14(12): 2582 (2022) - [c25]Roumen Kountchev, Roumiana Kountcheva:
Decorrelation of a Sequence of Color Images Through Hierarchical Adaptive Color KLT. KES-IDT 2022: 333-346 - 2020
- [j14]Roumen K. Kountchev, Rumen P. Mironov, Roumiana A. Kountcheva:
Hierarchical Cubical Tensor Decomposition through Low Complexity Orthogonal Transforms. Symmetry 12(5): 864 (2020) - [j13]Roumen Kountchev, Rumen P. Mironov, Roumiana Kountcheva:
Complexity Estimation of Cubical Tensor Represented through 3D Frequency-Ordered Hierarchical KLT. Symmetry 12(10): 1605 (2020) - [j12]Roumen K. Kountchev, Barna László Iantovics, Roumiana A. Kountcheva:
Hierarchical third-order tensor decomposition through inverse difference pyramid based on the three-dimensional Walsh-Hadamard transform with applications in data mining. WIREs Data Mining Knowl. Discov. 10(2) (2020)
2010 – 2019
- 2019
- [j11]László Barna Iantovics, Roumen Kountchev, Gloria Cerasela Crisan:
ExtrIntDetect - A New Universal Method for the Identification of Intelligent Cooperative Multiagent Systems with Extreme Intelligence. Symmetry 11(9): 1123 (2019) - 2016
- [c24]Roumen Kountchev, Suzan Anwar, Roumiana Kountcheva, Mariofanna G. Milanova:
Face Recognition in Home Security System Using Tensor Decomposition Based on Radix-(2 × 2) Hierarchical SVD. MPRSS 2016: 48-59 - [p12]Roumen Kountchev, Roumiana Kountcheva:
New Approaches for Hierarchical Image Decomposition, Based on IDP, SVD, PCA and KPCA. New Approaches in Intelligent Image Analysis 2016: 1-58 - [p11]Vladimir Kanchev, Roumen Kountchev:
Tissue Segmentation Methods Using 2D Histogram Matching in a Sequence of MR Brain Images. New Approaches in Intelligent Image Analysis 2016: 183-222 - [e4]Kazumi Nakamatsu, Roumen Kountchev:
New Approaches in Intelligent Control - Techniques, Methodologies and Applications. Intelligent Systems Reference Library 107, Springer 2016, ISBN 978-3-319-32166-0 [contents] - [e3]Roumen Kountchev, Kazumi Nakamatsu:
New Approaches in Intelligent Image Analysis - Techniques, Methodologies and Applications. Intelligent Systems Reference Library 108, Springer 2016, ISBN 978-3-319-32190-5 [contents] - 2015
- [j10]Roumen Kountchev, Stuart H. Rubin, Mariofanna G. Milanova, Roumiana Kountcheva:
Comparison of Image Decompositions Through Inverse Difference and Laplacian Pyramids. Int. J. Multim. Data Eng. Manag. 6(1): 19-38 (2015) - [j9]Roumen K. Kountchev, Roumiana A. Kountcheva:
Hierarchical SVD-based image decomposition with tree structure. Int. J. Reason. based Intell. Syst. 7(1/2): 114-129 (2015) - [c23]Roumen Kountchev, Mariofanna G. Milanova, Roumiana Kountcheva:
Content protection and hierarchical access control in image databases. INISTA 2015: 1-6 - 2014
- [j8]Roumen Kountchev, Kazumi Nakamatsu:
Adaptive multi-level 2D Karhunen-Loeve-based transform for still images. Int. J. Reason. based Intell. Syst. 6(1/2): 49-58 (2014) - [p10]Roumen Kountchev, Vladimir Todorov, Roumiana Kountcheva:
New Format for Coding of Single and Sequences of Medical Images. Advanced Intelligent Computational Technologies and Decision Support Systems 2014: 19-30 - [p9]Veska M. Georgieva, Roumen Kountchev, Ivo R. Draganov:
An Adaptive Approach for Noise Reduction in Sequences of CT Images. Advanced Intelligent Computational Technologies and Decision Support Systems 2014: 43-52 - [p8]Ivo R. Draganov, Roumen Kountchev, Veska M. Georgieva:
Compression of CT Images with Branched Inverse Pyramidal Decomposition. Advanced Intelligent Computational Technologies and Decision Support Systems 2014: 71-81 - [e2]Barna Iantovics, Roumen Kountchev:
Advanced Intelligent Computational Technologies and Decision Support Systems. Studies in Computational Intelligence 486, Springer 2014, ISBN 978-3-319-00466-2 [contents] - 2013
- [j7]Petar N. Ivanov, Roumen Kountchev:
Hierarchical principal component analysis-based transformation of multispectral images. Int. J. Reason. based Intell. Syst. 5(4): 260-273 (2013) - [c22]Roumen Kountchev, Mariofanna G. Milanova, Stuart Harvey Rubin, Roumiana Kountcheva:
Comparison of the structure and the computational complexity of the inverse difference and Laplacian Pyramids for still image decomposition. IRI 2013: 602-609 - [p7]Roumen Kountchev, Peter Ivanov:
Decorrelation of Sequences of Medical CT Images Based on the Hierarchical Adaptive KLT. Advances in Intelligent Analysis of Medical Data and Decision Support Systems 2013: 41-55 - [p6]Roumen Kountchev, Vladimir Todorov, Roumiana Kountcheva:
Compression with Adaptive Speckle Suppression for Ultrasound Medical Images. Advances in Intelligent Analysis of Medical Data and Decision Support Systems 2013: 57-68 - [p5]Veska M. Georgieva, Roumen Kountchev, Ivo R. Draganov:
An Adaptive Enhancement of X-Ray Images. Advances in Intelligent Analysis of Medical Data and Decision Support Systems 2013: 79-88 - [p4]Ivo R. Draganov, Roumen Kountchev, Veska M. Georgieva:
Medical Images Transform by Multistage PCA-Based Algorithm. Advances in Intelligent Analysis of Medical Data and Decision Support Systems 2013: 89-100 - [p3]Rumen P. Mironov, Roumen Kountchev:
Architecture for Medical Image Processing. Advances in Intelligent Analysis of Medical Data and Decision Support Systems 2013: 225-234 - [e1]Roumen Kountchev, Barna Iantovics:
Advances in Intelligent Analysis of Medical Data and Decision Support Systems. Studies in Computational Intelligence 473, Springer 2013, ISBN 978-3-319-00028-2 [contents] - 2012
- [j6]Stuart Harvey Rubin, Roumen Kountchev, Mariofanna G. Milanova, Roumiana Kountcheva:
Multispectral Image Compression, Intelligent Analysis, and Hierarchical Search in Image Databases. Int. J. Multim. Data Eng. Manag. 3(4): 1-30 (2012) - [j5]Rumen P. Mironov, Roumen Kountchev:
Complex Hadamard transform of digital signals: properties and applications. Int. J. Reason. based Intell. Syst. 4(1/2): 3-16 (2012) - [c21]Stuart Harvey Rubin, Roumen Kountchev, Mariofanna G. Milanova, Roumiana Kountcheva:
Intelligent processing and analysis of groups of multispectral images. IRI 2012: 165-172 - [c20]Roumen Kountchev, Kazumi Nakamatsu:
One Approach for Grayscale Image Decorrelation with Adaptive Multi-level 2D KLT. KES 2012: 1303-1312 - 2011
- [j4]Roumen Kountchev, Stuart H. Rubin, Vladimir Todorov, Roumiana Kountcheva:
Automatic detection of welding defects. Int. J. Reason. based Intell. Syst. 3(1): 34-43 (2011) - [j3]Roumen Kountchev, Vladimir Todorov, Roumiana Kountcheva:
Compression of multispectral and multi-view images with inverse pyramid decomposition. Int. J. Reason. based Intell. Syst. 3(2): 124-131 (2011) - [c19]Volkan H. Bagci, Mariofanna G. Milanova, Roumen Kountchev, Roumiana Kountcheva, Vladimir Todorov:
Object and Scene Recognition Using Color Descriptors and Adaptive Color KLT. HCI (12) 2011: 355-363 - [c18]Roumen Kountchev, Stuart Harvey Rubin, Mariofanna G. Milanova, Roumiana Kountcheva:
Invariant object description with inverse pyramid based on the truncated modified discrete Mellin-Fourier transform. IRI 2011: 360-365 - 2010
- [c17]Roumen Kountchev, Stuart Harvey Rubin, Mariofanna G. Milanova, Vladimir Todorov, Roumiana Kountcheva:
Resistant image watermarking in the phases of the Complex Hadamard Transform coefficients. IRI 2010: 159-164 - [c16]Kazumi Nakamatsu, Jair Minoro Abe, Seiki Akama, Roumen Kountchev:
Introduction to Intelligent Elevator Control Based on EVALPSN. KES (3) 2010: 133-142 - [c15]Roumen Kountchev, Kazumi Nakamatsu:
Compression of Multispectral Images with Inverse Pyramid Decomposition. KES (3) 2010: 215-224
2000 – 2009
- 2009
- [j2]Roumen Kountchev, Vladimir Todorov, Roumiana Kountcheva:
Efficient archiving of documents with protection of their authentic content. Int. J. Reason. based Intell. Syst. 1(1/2): 43-55 (2009) - [c14]Mariofanna G. Milanova, Roumen Kountchev, Stuart Harvey Rubin, Vladimir Todorov, Roumiana Kountcheva:
Content Based Image Retrieval Using Adaptive Inverse Pyramid Representation. HCI (9) 2009: 304-314 - [c13]Roumen Kountchev, Stuart Harvey Rubin, Mariofanna G. Milanova, Vladimir Todorov, Roumiana Kountcheva:
Intra-frame Compression of Video Sequences with Inverse Difference Pyramid Decomposition. IRI 2009: 218-223 - 2008
- [c12]Valeriy Cherkashyn, Roumen Kountchev, Dong-Chen He:
Image Decomposition on the basis of an Inverse Pyramid with 3-layer Neural Networks. SCSS (1) 2008: 445-450 - [c11]Mariofanna G. Milanova, Stuart Harvey Rubin, Roumen Kountchev, Vladimir Todorov, Roumiana Kountcheva:
Combined visual attention model for video sequences. ICPR 2008: 1-4 - [c10]Roumen Kountchev, Stuart Harvey Rubin, Mariofanna G. Milanova, Vladimir Todorov, Roumiana Kountcheva:
Extraction of objects contours for body language study. IRI 2008: 220-225 - [p2]Roumen Kountchev, Roumiana Kountcheva:
Image Representation with Reduced Spectrum Pyramid. New Directions in Intelligent Interactive Multimedia 2008: 275-284 - 2007
- [c9]Roumen Kountchev, Mariofanna G. Milanova, Vladimir Todorov, Roumiana Kountcheva:
Enhancement of the Visual Quality of Scanned Documents. IRI 2007: 367-372 - [c8]Roumen Kountchev, Stuart Harvey Rubin, Mariofanna G. Milanova, Vladimir Todorov:
Image Multi-Layer Search Based on Spectrum Pyramid. IRI 2007: 436-440 - 2006
- [c7]Stuart Harvey Rubin, Roumen Kountchev, Vladimir Todorov, Roumiana Kountcheva:
Contrast enhancement with histogram-adaptive image segmentation. IRI 2006: 602-607 - 2005
- [p1]Roumen Kountchev, Mariofanna G. Milanova, Charles Ford, Roumiana Kountcheva:
Multi-layer Image Transmission with Inverse Pyramidal Decomposition. Computational Intelligence for Modelling and Prediction 2005: 179-196 - 2004
- [c6]Roumen Kountchev, Mariofanna G. Milanova, Charles Ford, Stuart Harvey Rubin, Roumiana Kountcheva:
Lossless Image Compression with IDP and Adaptive RLC. CISST 2004: 608-612 - [c5]Roumen Kountchev, Mariofanna G. Milanova, Charles Ford, Stuart Harvey Rubin, Roumiana Kountcheva:
Audio Watermarking Based On Inverse Difference Decomposition. IRI 2004: 180-185 - 2003
- [c4]Roumen Kountchev, Mariofanna G. Milanova, Charles Ford, Stuart Harvey Rubin:
Multimedia Watermarking with Complex Hadamard Transform in the Inverse Pyramid Decomposition. IRI 2003: 305-310 - [c3]Mariofanna G. Milanova, Charles Ford, Roumen Kountchev, Roumiana Kountcheva:
Digital Watermarking for Medical Images. METMBS 2003: 509-520 - 2002
- [j1]Roumen Kountchev, Véronique Haese-Coat, Joseph Ronsin:
Inverse pyramidal decomposition with multiple DCT. Signal Process. Image Commun. 17(2): 201-218 (2002) - [c2]Mariofanna G. Milanova, Charles Ford, Roumen Kountchev, Roumiana Kountcheva:
Fast Image Transfer with Adaptive Multi-Layer Image Compression. FSKD 2002: 192-196
1990 – 1999
- 1992
- [c1]Mariofanna G. Milanova, I. A. Aleksandrov, Roumen Kountchev:
Recovering and CAD/CAM Processing of Complex Surfaces. ECAI 1992: 824-825
Coauthor Index
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