Detection and location of active display regions in videos with static borders

A system for active region detection in videos, the system comprising:

• a feature extraction circuit to extract a plurality of features from rows of pixels and columns of pixels of a current video frame, the features based on horizontal gradient runs (HGRs) and vertical gradient runs (VGRs);
• a static region detection circuit to detect one or more static regions of the current video frame, based on a comparison of differences of a subset of the extracted features of the current video frame and extracted features of a previous video frame, to a set of static region detection threshold values;
• a boundary detection circuit to detect one or more boundaries of the detected static regions based on a location of a maximum value of one of the features within the static region, the maximum value greater than a boundary detection threshold value;
• and
• a coordinate calculation circuit to define an active region in the current video frame based on exclusion of the detected static regions.

At least one non-transitory computer readable storage medium having instructions encoded thereon that, when executed by one or more processors, result in the following operations for active region detection in videos, the operations comprising:

• extracting a plurality of features from rows of pixels and columns of pixels of a current video frame, the features based on horizontal gradient runs (HGRs) and vertical gradient runs (VGRs);
• detecting one or more static regions of the current video frame, based on a comparison of differences of a subset of the extracted features of the current video frame and extracted features of a previous video frame, to a set of static region detection threshold values;
• detecting one or more boundaries of the detected static regions based on a location of a maximum value of one of the features within the static region, the maximum value greater than a boundary detection threshold value;
• and
• defining an active region in the current video frame based on exclusion of the detected static regions.