Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Besma Abidi"'
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 28:1707-1718
The human visual system is not very sensitive to the absolute luminance of an image, but rather responds to local luminance changes, i.e., the gradient of an image. In this paper, we propose a constrained optimization approach for image gradient enha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2c19cd8d6ea7518bb5745e2b807974b
https://doi.org/10.1109/tcsvt.2017.2696971
https://doi.org/10.1109/tcsvt.2017.2696971
Publikováno v:
International Journal of Information Acquisition. :225-242
Most existing camera placement algorithms focus on coverage and/or visibility analysis, which ensures that the object of interest is visible in the camera's field of view (FOV). According to recent literature, handoff safety margin is introduced to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f90a9f3bba834fc1260c5d1ab147082
https://doi.org/10.1142/s0219878910002208
https://doi.org/10.1142/s0219878910002208
Publikováno v:
Image and Vision Computing. 28:851-864
Camera handoff is a crucial step to obtain a continuously tracked and consistently labeled trajectory of the object of interest in multi-camera surveillance systems. Most existing camera handoff algorithms concentrate on data association, namely cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0b1b803c9789f868180fda394cb14e7
https://doi.org/10.1016/j.imavis.2009.10.013
https://doi.org/10.1016/j.imavis.2009.10.013
Publikováno v:
Computer Vision and Image Understanding. 114:179-197
In a multi-camera surveillance system, both camera handoff and placement play an important role in generating an automated and persistent object tracking, typical of most surveillance requirements. Camera handoff should comprise three fundamental com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fc8cecbe76ce5ca2dd94757aa3f17b7
https://doi.org/10.1016/j.cviu.2009.04.004
https://doi.org/10.1016/j.cviu.2009.04.004
Publikováno v:
IEEE Transactions on Information Forensics and Security. 4:111-122
In order to achieve improved recognition performance in comparison with conventional broadband images, this paper addresses a new method that automatically specifies the optimal spectral range for multispectral face images according to given illumina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4902bc38d1d9d4d994e6b2f1d321ee2d
https://doi.org/10.1109/tifs.2008.2012211
https://doi.org/10.1109/tifs.2008.2012211
Publikováno v:
ACM Computing Surveys. 41:1-36
Although sensor planning in computer vision has been a subject of research for over two decades, a vast majority of the research seems to concentrate on two particular applications in a rather limited context of laboratory and industrial workbenches,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06d0a0b7971f68d7bc84423c5be1ea98
https://doi.org/10.1145/1456650.1456657
https://doi.org/10.1145/1456650.1456657
Publikováno v:
Journal of Pattern Recognition Research. 4:92-109
In this paper, we present the application of two linear machine learning techniques; ridge regression and kernel regression for the estimation of illumination chromaticity. A number of machine learning techniques, neural networks and support vector m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c2cf1487a90345ccda29d02935e7c91
https://doi.org/10.13176/11.99
https://doi.org/10.13176/11.99
Publikováno v:
International Journal of Computer Vision. 82:244-263
To achieve size preserving tracking, in addition to controlling the camera's pan and tilt motions to keep the object of interest in the camera's field of view (FOV), the camera's focal length is adjusted automatically to compensate for the changes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::127e425671caa938982c9ce8cb597e72
https://doi.org/10.1007/s11263-008-0198-5
https://doi.org/10.1007/s11263-008-0198-5
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 18:1052-1063
Dual-camera systems have been widely used in surveillance because of the ability to explore the wide field of view (FOV) of the omnidirectional camera and the wide zoom range of the PTZ camera. Most existing algorithms require a priori knowledge of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dada33608c0ee55e2ec6c05e498c3582
https://doi.org/10.1109/tcsvt.2008.928223
https://doi.org/10.1109/tcsvt.2008.928223
Publikováno v:
Computer Vision and Image Understanding. 111:111-125
In this paper, we describe a face video database, UTK-LRHM, acquired from long distances and with high magnifications. Both indoor and outdoor sequences are collected under uncontrolled surveillance conditions. To our knowledge, it is the first datab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a03ba070b4bf750f690e929a1fa892e
https://doi.org/10.1016/j.cviu.2007.09.004
https://doi.org/10.1016/j.cviu.2007.09.004