Methods and systems for automatically adding motion lines representing motion to a still image

摘要

Systems and methods that add motion lines that indicate motion in a still image include selecting two or more video fields or frames, compensating for global motion in the selected fields or frames, determining the difference between positions of pixels in the selected fields or frames, identifying regions of motion with pixels having a difference that is greater than a threshold value, identifying points of interest in the regions of motion, selecting pixels from the points of interest, determining the motion of the selected points of interest, and adding lines to the still image that extend from the selected pixels.