METHOD AND SYSTEM FOR CLUSTERED FALLBACK FOR FRAME RATE UP-CONVERSION (FRUC) FOR DIGITAL TELEVISIONS

摘要

A video decoder may be operable to divide a video frame into clusters during frame rate up-conversion (FRUC) process. The video decoder may be operable to determine an error associated with the displayed frame difference (DFD) for each of the clusters and switch between frame interpolation and frame repetition based on the error. A DFD histogram may be computed for each cluster and a condition for clustered fallback based on one or more of the DFD histograms may be determined. The clustered fallback may be entered if the condition for clustered fallback is met. The clustered fallback may be entered locally for one or more of the clusters of the video frame. The clustered fallback may be entered in such a way that if the number of consecutive video frames which meet the condition for clustered fallback is greater than a particular threshold value.