Motion Estimation in a Video Sequence

摘要

Aspects of the present invention are related to systems and methods for determining local-analysis-window size and weighting parameters in a gradient-based motion estimation system.

主权项

1. A method for selecting the size of a local analysis window in a motion estimation system, said method comprising:
a) receiving, in a computing system associated with a motion estimation system, a plurality of candidate window sizes; b) receiving, in said computing system, a noise estimate associated with a current image; c) determining a threshold associated with said noise estimate; d) calculating a first local structural variation associated with a first window in said current image, wherein said first window is substantially centered at a window center in said current image and is size-related to a first candidate window size from said plurality of candidate window sizes; and e) selecting said first candidate window size for the size of a local analysis window in said motion estimation system when said first local structural variation and said threshold meet a first criterion.