06057892 is referenced by 22 patents and cites 6 patents.

Motion correlation is a way of analyzing movement in image sequences such as television signals. The estimation of movement in television pictures is essential to enable the use of motion compensated processing techniques. These techniques yield improved quality video processing and moving image compression. Motion correlation would be used as part of a video motion estimation system. This invention describes a number of enhancements to, and a simplfied, efficient implementation of, the basic motion correlation algorithm. It is shown how to produce motion correlation surfaces co-timed with output, rather than input, pictures. It is also shown how to average power spectra to obtain improved noise performance, and hence improved accuracy, in motion correlation. Finally it is shown that separate correlation surfaces can be produced relating to `future` and `past` pictures.

Title
Correlation processing for motion estimation
Application Number
8/983473
Publication Number
6057892
Application Date
April 2, 1998
Publication Date
May 2, 2000
Inventor
Timothy J Borer
Smallfield
GB
Agent
Ratner & Prestia
Assignee
Innovision
GB
IPC
H04N 5/21
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