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Optical flow computation using extended constraints
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DOI：10.1109/83.495956.png)
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Several approaches for optical flow estimation use partial differential equations to model changes in image brightness throughout time. A commonly used equation is the so-called optical flow constraint (OFC), which assumes that the image brightness is stationary with respect to time. More recently, a different constraint referred to as the extended optical flow constraint (EOFC) has been introduced, which also contains the divergence of the how field of image brightness. There is no agreement in the literature about which of these constraints provides the best estimation of the velocity held. In this paper, two new solutions for optical how computation are proposed, which are based on an approximation of the constraint equations. The two techniques have been used with both EOFC and OFC constraint equations. Results achieved by using these solutions have been compared with several well-known computational methods for optical flow estimation in different motion conditions. Estimation errors have also been measured and compared for different types of motion.
Keyword:
IMAGE SEQUENCES
3-DIMENSIONAL MOTION
MOVING-OBJECTS
3-D MOTION
FIELD
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期刊
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13.7
论文数:
1.0W
被引数:
8.4W
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