TY  - CONF
AU  - Patricia Marquez
AU  - Debora Gil
AU  - Aura Hernandez-Sabate
A2  - ICIAR
ED  - Campilho, Aurélio and Kamel
PY  - 2012//
TI  - Error Analysis for Lucas-Kanade Based Schemes
T2  - LNCS
BT  - 9th International Conference on Image Analysis and Recognition
T3  - Lecture Notes in Computer Science
SP  - 184
EP  - 191
VL  - 7324
IS  - I
PB  - Springer-Verlag Berlin Heidelberg
KW  - Optical flow
KW  - Confidence measure
KW  - Lucas-Kanade
KW  - Cardiac Magnetic Resonance
N2  - Optical flow is a valuable tool for motion analysis in medical imaging sequences. A reliable application requires determining the accuracy of the computed optical flow. This is  a main challenge given the absence of ground truth in medical sequences. This paper presents an error analysis of Lucas-Kanade schemes in terms of intrinsic design errors and  numerical stability of the algorithm. Our analysis provides a confidence measure that is naturally correlated to the accuracy of the flow field. Our experiments show the higher  predictive value of our confidence measure compared to existing measures.
SN  - 0302-9743
SN  - 978-3-642-31294-6
L1  - http://refbase.cvc.uab.es/files/MGH2012a.pdf
UR  - http://dx.doi.org/10.1007/978-3-642-31295-3_22
N1  - IAM
ID  - Patricia Marquez2012
ER  -