Performance analysis of stereo, vergence, and focus as depth cuesfor active vision
Das, S.
Ahuja, N.
Beckman Inst., Illinois Univ., Urbana-Champaign, IL;
This paper appears in: Pattern Analysis and Machine Intelligence, IEEE Transactions on
Publication Date: Dec 1995
Volume: 17,
Issue: 12
On page(s): 1213-1219
ISSN: 0162-8828
References Cited: 10
CODEN: ITPIDJ
INSPEC Accession Number: 5148604
Digital Object Identifier: 10.1109/34.476513
Current Version Published: 2002-08-06
Abstract
This paper compares the performances of the binocular cues of
stereo and vergence, and the monocular cue of focus for range estimation
using an active vision system. The performance of each cue is
characterized in terms of sensitivity to errors in the imaging
parameters. The effects of random, quantization errors are expressed in
terms of the standard deviation of the resulting depth error. The effect
of systematic, calibration errors on estimation using each cue is also
studied. Performance characterization of each cue is utilized to
evaluate the relative performance of the cues. Also discussed, based on
such characterization, are ways to select a cue taking into account the
computational and reliability aspects of the corresponding estimation
process
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