Patent ID: 8780986
Filing Date: 2014-07-15
Classification: H04N

Abstract:
1. A method of coding video data, comprising: selecting pixel groups from the video to be coded as refresh pixel groups, wherein over a predetermined span of frames at least one refresh pixel group covers each pixel group location of the video, the selection of each refresh pixel group being based on a calculated number of pixel groups that depend on the refresh pixel group; adjusting the coding of the refresh pixel groups to code the refresh pixel groups to a predetermined quality of coding according to a refresh coding policy to produce refreshed coded video, wherein coding parameters and a rate of refreshing are adjusted based on the calculated number of pixel groups; adjusting the coding of non-refresh pixel groups to code the non-refresh pixel groups to a predetermined quality of coding according to a non-refresh coding policy to produce non-refreshed coded video; and outputting to a channel the refreshed coded video.