Title :
Quantization errors in axial motion stereo on rectangular-tessellated image sensors
Author :
Nguyen, Thang C. ; Huang, Thomas S.
Author_Institution :
Beckman Inst., Illinois Univ., Urbana, IL, USA
fDate :
30 Aug-3 Sep 1992
Abstract :
The purpose of the paper is two-fold: first, to investigate the spatial quantization errors on the image plane; second, to discuss a speed/accuracy trade-off between axial and lateral stereo (conventional stereopsis). Triangulation errors in 3-D point position estimation are analyzed with analytical approximations and verified with extensive numerical simulations. A performance comparison to conventional stereopsis reveals a trade-off between accuracy and speed for axial stereo, which could be tailored to fit one´s performance requirements. The authors pay attention to the anisotropy of rectangular image tessellation, since log-polar sensors are still uncommon
Keywords :
computer vision; image sensors; 3-D point position estimation; anisotropy; axial motion stereo; computer vision; lateral stereo; rectangular-tessellated image sensors; spatial quantization errors; speed/accuracy trade-off; stereopsis; triangulation errors; Cameras; Differential equations; Image analysis; Image motion analysis; Image sensors; Motion analysis; Motion estimation; Numerical simulation; Quantization; Robot vision systems;
Conference_Titel :
Pattern Recognition, 1992. Vol.I. Conference A: Computer Vision and Applications, Proceedings., 11th IAPR International Conference on
Conference_Location :
The Hague
Print_ISBN :
0-8186-2910-X
DOI :
10.1109/ICPR.1992.201498
