Method and system for mitigating motion trail artifacts and improving low contrast contours in temporal filtering based noise reduction

摘要

Current output pictures of video data are generated utilizing a motion compensated (MC) blended picture and a corresponding non-MC blended picture of the video data. Windows of picture data from a first picture and MC windows of picture data from a MC previously output picture may be partitioned. The partitioned widows are compared and the first picture is blended with the MC previously output picture based on the comparison to, for example, reduce noise and prevent motion trail artifacts. Non-MC windows of picture data from a MC or non-MC previously output picture may be partitioned and compared with the windows of picture data from the first picture. The first picture may be blended with the MC or non-MC previously output picture based on the comparison to reduce motion trail artifacts. A blending factor is determined and utilized to blend the blended pictures to reduce noise and prevent motion artifacts.

主权项

1. A method for processing video, the method comprising:
performing by one or more processors, one or more circuits, or any combination thereof:
comparing a partitioned window of picture data from a picture of video data with a corresponding motion compensated partitioned window of picture data from a motion compensated previously generated output picture of said video data;blending said picture, using said shifted blending factor, with said motion compensated previously generated output picture to generate a motion compensated blended picture; andgenerating a current output picture of said video data utilizing said motion compensated blended picture and a corresponding non-motion compensated blended picture of said video data.