Intel Corporation
Screen content detection for adaptive encoding

Abstract:

Systems and methods for detecting screen contents and adaptive enablement of screen content coding modes. Encoding mode decision may be made adaptive to include or exclude screen content coding (SCC) modes. In some embodiments, a screen content decision is based on one or more statistics characterizing a distribution of meaningful colors (e.g., chroma) and/or intensities (e.g., luma) determined for a population of pixels of an input picture. In some embodiments, a screen content decision is based on one or more statistics characterizing the pure flat area of an input picture and the area with extreme sharp edges. Pictures may be encoded according to a mode selection that is adaptive to the screen content decision, for example selecting between encoding modes that include SCC modes, or selecting between encoding modes that exclude SCC modes.