VIDEO ANALYZER

摘要

A content receiver and a method for controlling the same are provided. The content receiver, for example, may include, but is not limited to, a communication system configured to receive video content comprising a plurality of video frames from a content source, and a video analyzer configured to determine when compression of the video content is causing blockiness in one or more of the plurality of video frames, and trigger at least one content receiver response when the compression of the video content is causing blockiness in one or more of the plurality of video frames.

主权项

1. A content receiver, comprising:
a communication system configured to receive video content comprising a plurality of video frames from a content source; and a video analyzer communicatively coupled to the communication system the video analyzer comprising a processor and memory, the video analyzer configured to:
determining a plurality of video blocks in the one or more of the plurality of video frames;calculating, for each of the determined plurality of blocks, a standard deviation of each sub-edge of the respective block of the determined plurality of blocks:calculating, for each of the determined plurality of blocks, a mean of differences for each sub-edge;determining, for each of the determined plurality of blocks, that one or more blocks of video content may be perceived as blocky when the standard deviation of one or more sub-edge of the respective block of the determined plurality of blocks is above a predetermined threshold and when the mean of differences for one or more sub-edge is above a predetermined threshold;determine, when one or more blocks of video content may be perceived as blocky, when the one or more blocks of video content which may be perceived as blocky have edge distinctness when edges of the one or more blocks of video content which may be perceived as blocky are distinct from the centers of the one or more blocks of video content which may be perceived as blocky;determining, for each video block determined to have edge distinction, a weight for each edge of the respective video block;determining, for each video block determined to have edge a weight over a predestined threshold, that the respective video block is blocky when there is no pattern between the respective video block and at least one other adjacent video block;determine that compression of the video content is causing blockiness in the one or more blocks of video content by determining when a total number of microblocks in the one or more of the plurality of video frames determined to be blocky, while excluding the respective adjacent video blocks having the pattern there-between, exceeds a predetermined threshold; andtrigger at least one content receiver response when the compression of the video content is causing blockiness in the one or more blocks of video which have edge distinctness.