Multi-metric filtering

摘要

A filter unit of a video encoder or video decoder can determine a first metric for a group of pixels within a block of pixels based on a comparison of a subset of the pixels in the block to other pixels in the block; determine a filter based on the first metric; and generate a filtered image by applying the filter to the group of pixels. The subset of pixels can be selected to not include pixels on the boundary of the block of pixels.

主权项

1. A method of video coding, the method comprising:
determining a direction of at least one pixel of a block of pixels; determining a metric for the at least one pixel of the block of pixels, wherein the metric is determined based on a comparison of pixel values for a subset of the pixels in the block to the at least one pixel, wherein the block of pixels is an M×N block of pixels, and wherein at least one of M or N is 2 or greater; based on the metric and the direction, determining a filter for the at least one pixel of the block of pixels; and generating a filtered image by applying the filter to the at least one pixel of the block of pixels.