Variable frame rate interpolation

摘要

A method of determining an output frame rate includes receiving an input sequence of frames of image data at an input frame rate, performing motion vector calculations on the frames of image data to produce motion vectors and motion statistics, determining a motion level in the frames using the motion statistics, and interpolating frames of image data at the output frame rate, wherein the output frame rate is based upon the motion level.

主权项

1. A method of determining an output frame rate, comprising:
receiving an input sequence of frames of image data at an input frame rate; performing motion vector calculations on the frames of image data to produce motion vectors and motion statistics; determining a motion level in the frames using the motion statistics, comprising:
calculating a histogram of a predetermined number of bins for each of a motion vector block in a motion vector field;adjusting the histogram to a cumulative histogram; comparing the cumulative histogram to a threshold; and
setting the motion level based upon the histogram that is greater than the threshold; providing a motion estimation motion compensation (MEMC) level for the neighboring frames using the motion statistics; varying the output frame rate depending upon the MEMC level and the motion statistics; and interpolating frames of image data at the output frame rate.