The performance of camera translation direction estimators from optical flow: analysis, comparison, and theoretical limits | IEEE Journals & Magazine | IEEE Xplore

The performance of camera translation direction estimators from optical flow: analysis, comparison, and theoretical limits


Abstract:

A noniterative method using optical flow to recover the translation direction of a moving camera has been previously proposed by Heeger-Jepson (1992). In this paper we pr...Show More

Abstract:

A noniterative method using optical flow to recover the translation direction of a moving camera has been previously proposed by Heeger-Jepson (1992). In this paper we present a detailed explanation of the bias in this algorithm and compare methods for eliminating this bias, as well as presenting a comprehensive error analysis. This analysis includes a necessary modification to the Cramer-Rao lower bound (CRLB), We propose a simple iterative modification to the algorithm which produces unbiased translation direction estimates that approach the CRLB. Numerical results are used to compare the various techniques on synthetic and real image sequences.
Published in: IEEE Transactions on Pattern Analysis and Machine Intelligence ( Volume: 18, Issue: 9, September 1996)
Page(s): 927 - 932
Date of Publication: 06 August 2002

ISSN Information:


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