QUALCOMM Incorporated
Grouped coding for palette syntax in video coding

Abstract:

A video decoder may divide a current coding unit (CU) of video data into a plurality of index groups. The video decoder may decode syntax elements common to all of the index groups and then separately and sequentially decode syntax elements for each of the index groups. By first decoding the syntax elements used by all the index groups and then separately grouping the decoding of the syntax elements for the index groups, the video decoder may begin the construction process of some samples of the current CU without having to wait to complete decoding of all of the syntax elements of the current CU. As such, the techniques of this disclosure may decrease the amount of time required and/or the delay introduced by the decoding process.