Offsets at sub-pixel resolution

摘要

This disclosure describes techniques applied during video encoding and decoding processes. In one example, a method of encoding video data comprises calculating a plurality of offset values for a coded unit of the video data, wherein the offset values are associated with a plurality of different integer and sub-integer pixel locations, applying the offset values to predictive video blocks to generate offset predictive video blocks, and encoding video blocks of the coded unit based on the offset predictive video blocks. In another example, a method of decoding video data comprises receiving a plurality of offset values for a coded unit of the video data, wherein the offset values are associated with a plurality of different integer and sub-integer pixel locations, applying the offset values to predictive video blocks to generate offset predictive video blocks, and decoding video blocks of the coded unit based on the offset predictive video blocks.

主权项

1. A method of encoding video data, the method comprising:
calculating a plurality of different DC offset values for a coded unit of the video data, wherein the plurality of different DC offset values are associated with a plurality of different integer and sub-integer pixel locations, wherein the different DC offset values include one DC offset value for integer pixel locations and several DC offset values for different sub-integer pixel locations; applying the DC offset values to predictive video blocks to bias the predictive video blocks according to the DC offset values and thereby generate offset predictive video blocks; encoding video blocks of the coded unit based on the offset predictive video blocks.