DocumentCode :
2237978
Title :
A comparative study of stereo, vergence, and focus as depth cues for active vision
Author :
Das, Subhodev ; Ahuja, Narendra
Author_Institution :
Coll. of Eng., California Univ., Riverside, CA, USA
fYear :
1993
fDate :
15-17 Jun 1993
Firstpage :
194
Lastpage :
199
Abstract :
The performances of the binocular cues of stereo, vergence, and the monocular cue of focus for range estimation using an active vision system are compared. The performance of each cue is characterized by its sensitivity to errors in the imaging parameters. The effect of random quantization errors is expressed in terms of the standard derivation of the resulting depth error. The effect of systematic calibration errors on estimation using each cue is studied. Performance characterization of each cue is shown to be useful for active control of the imaging parameters to improve the accuracy of the estimated range. Methods to integrate the use of the cues in order to overcome their individual limitations are discussed
Keywords :
distance measurement; stereo image processing; active vision; depth cues; error sensitivity; focus; performance characterization; random quantization errors; range estimation; standard derivation; stereo vision; systematic calibration errors; vergence; Calibration; Educational institutions; Estimation error; Focusing; Image analysis; Layout; Machine vision; Quantization; Surface fitting; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Vision and Pattern Recognition, 1993. Proceedings CVPR '93., 1993 IEEE Computer Society Conference on
Conference_Location :
New York, NY
ISSN :
1063-6919
Print_ISBN :
0-8186-3880-X
Type :
conf
DOI :
10.1109/CVPR.1993.340989
Filename :
340989
Link To Document :
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