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CVPR
2007
IEEE
16 years 8 months ago
Autocalibration via Rank-Constrained Estimation of the Absolute Quadric
We present an autocalibration algorithm for upgrading a projective reconstruction to a metric reconstruction by estimating the absolute dual quadric. The algorithm enforces the ra...
Manmohan Krishna Chandraker, Sameer Agarwal, Fredr...
CVPR
2007
IEEE
16 years 8 months ago
Microphone Arrays as Generalized Cameras for Integrated Audio Visual Processing
Combinations of microphones and cameras allow the joint audio visual sensing of a scene. Such arrangements of sensors are common in biological organisms and in applications such a...
Adam O'Donovan, Ramani Duraiswami, Jan Neumann
CVPR
2008
IEEE
16 years 8 months ago
Structure learning in random fields for heart motion abnormality detection
Coronary Heart Disease can be diagnosed by assessing the regional motion of the heart walls in ultrasound images of the left ventricle. Even for experts, ultrasound images are dif...
Glenn Fung, Kevin Murphy, Mark Schmidt, Róm...
CVPR
2008
IEEE
16 years 8 months ago
Characterizing the shadow space of camera-light pairs
We present a theoretical analysis for characterizing the shadows cast by a point light source given its relative position to the camera. In particular, we analyze the epipolar geo...
Daniel A. Vaquero, Matthew Turk, Ramesh Raskar, Ro...
ICCV
2005
IEEE
16 years 8 months ago
Geometric Invariants and Applications under Catadioptric Camera Model
This paper presents geometric invariants of points and their applications under central catadioptric camera model. Although the image has severe distortions under the model, we es...
Yihong Wu, Zhanyi Hu