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ICASSP
2011
IEEE
14 years 1 months ago
Contour-based hidden Markov model to segment 2D ultrasound images
The segmentation of ultrasound images is challenging due to the difficulty of appropriate modeling of their appearance variations including speckle as well as signal dropout. We ...
Xiaoning Qian, Byung-Jun Yoon
CVPR
2008
IEEE
15 years 11 months ago
Toward automatic 3D modeling of scenes using a generic camera model
The automatic reconstruction of 3D models from image sequences is still a very active field of research. All existing methods are designed for a given camera model, and a new (and...
Maxime Lhuillier
ICRA
2009
IEEE
125views Robotics» more  ICRA 2009»
14 years 7 months ago
Photometry-based visual servoing using light reflexion models
Abstract-- We present in this paper a way to achieve positioning tasks by visual servoing under complex luminance variations. To do that, we use as visual features the luminance of...
Christophe Collewet, Éric Marchand
CVPR
2007
IEEE
15 years 11 months ago
Symmetric Objects are Hardly Ambiguous
Given any two images taken under different illumination conditions, there always exist a physically realizable object which is consistent with both the images even if the lighting...
Gaurav Aggarwal, Soma Biswas, Rama Chellappa
MVA
2008
131views Computer Vision» more  MVA 2008»
14 years 9 months ago
Frame-level temporal calibration of video sequences from unsynchronized cameras
This paper describes a new method for temporally calibrating multiple cameras by image processing operations. Existing multi-camera algorithms assume that the input sequences are ...
Senem Velipasalar, Wayne Wolf