Title :
Caustics of catadioptric cameras
Author :
Swaminathan, Rahul ; Grossberg, Michael D. ; Nayar, Shree K.
Author_Institution :
Dept. of Comput. Sci., Columbia Univ., New York, NY, USA
Abstract :
Conventional vision systems and algorithms assume the camera to have a single viewpoint. However, sensors need not always maintain a single viewpoint. For instance, an incorrectly aligned system could cause non-single viewpoints. Also, systems could be designed to specifically deviate from a single viewpoint to trade-off image characteristics such as resolution and field of view. In these cases, the locus of viewpoints forms what is called a caustic. In this paper, we present an in-depth analysis of caustics of catadioptric cameras with conic reflectors. Properties of caustics with respect to field of view and resolution are presented. Finally, we present ways to calibrate conic catadioptric systems and estimate their caustics from known camera motion
Keywords :
computer vision; camera motion; catadioptric cameras; caustic; conic catadioptric systems; conic reflectors; field of view; image characteristics; single viewpoint; vision systems; Cameras; Computer science; Image resolution; Layout; Lenses; Machine vision; Mirrors; Motion estimation; Sensor phenomena and characterization; Spatial resolution;
Conference_Titel :
Computer Vision, 2001. ICCV 2001. Proceedings. Eighth IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7695-1143-0
DOI :
10.1109/ICCV.2001.937581
