Blockiness metric for large HEVC block artifacts

摘要

In one example, a method for encoding video data includes determining a first value for a line of a first plurality of lines, wherein the first plurality of lines are perpendicular to a first edge of a block of the video data; in response to determining that the value satisfies at least one threshold: determining a second value for the line of the first plurality of lines; and determining a second value for a line of a second plurality of lines, wherein the second plurality of lines are perpendicular to a second edge of the block of video data; determining, based on the second value for the line of the first plurality of lines and the second value for the line of the second plurality of lines, an average value; and determining, based on the average value, whether or not to encode one or more deblocking parameter offsets.

主权项

1. A method for encoding video data comprising:
determining, based on a first plurality of sample pixel values and a second plurality of sample pixel values, a first value for a pixel line of a first plurality of pixel lines, wherein the first plurality of sample values correspond to pixels along the pixel line of the first plurality of pixel lines that are included in a first block of the video data and the second plurality of sample values correspond to pixels along the pixel line of the first plurality of pixel lines that are included in a second block of the video data, wherein the first plurality of pixel lines are perpendicular to a first edge of the first block of the video data, and wherein the first edge is the border between the first block of the video data and the second block of the video data; in response to determining that the first value satisfies at least one threshold:
determining, based on a sample value of the first plurality of sample values and a sample value of the second plurality of sample values, a second value for the pixel line of the first plurality of pixel lines; anddetermining, based on a sample value included in the first block of the video data and a sample value included in a third block of the video data, a second value for a pixel line of a second plurality of pixel lines, wherein the second plurality of pixel lines are perpendicular to a second edge of the first block of the video data, and wherein the first edge is a vertical edge or a horizontal edge, and wherein the second edge is a different edge of the vertical edge or the horizontal edge; determining, based on the second value for the pixel line of the first plurality of pixel lines and the second value for the pixel line of the second plurality of pixel lines, an average value; determining, based on the average value, whether or not to encode one or more deblocking parameter offsets; and encoding, in a coded video bitstream and responsive to determining to encode the one or more deblocking parameter offsets, the one or more deblocking parameter offsets.