Image motion estimation-convergence and error analysis
Aguiar, P.M.Q.
Moura, J.M.F.
Instituto de Sistemas e Robotica, Instituto Superior Tecnico, Lisbon;
This paper appears in: Image Processing, 2001. Proceedings. 2001 International Conference on
Publication Date: 7-10 Oct 2001
Volume: 2,
On page(s): 937-940 vol.2
Meeting Date: 10/07/2001 - 10/10/2001
Location: Thessaloniki, Greece
ISBN: 0-7803-6725-1
References Cited: 4
INSPEC Accession Number: 7219562
Digital Object Identifier: 10.1109/ICIP.2001.958649
Current Version Published: 2002-08-07
Abstract
The paper computes the reliability of estimates of image motion
parameters. The use of such measures of reliability to weight motion
estimates improves significantly the performance of motion analysis
tasks such as the recovery of 3D structure (see Irani, M. and Anandan,
R., ECCV, vol.1, p.539-53, 2000; Aguiar, P.M.Q. and Moura, J.M.F., IEEE
ICIP, vol.1, p.549-52, 2000). The paper relates both the estimation
error variance and the stability of the estimation algorithm with the
spatial gradient of the image brightness pattern. We illustrate the
predictions of our expressions with several image brightness patterns
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