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1. (WO2017039845) ENCODING TECHNIQUES FOR DISPLAY OF TEXT AND OTHER HIGH-FREQUENCY CONTENT

Pub. No.:    WO/2017/039845    International Application No.:    PCT/US2016/042304
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Jul 15 01:59:59 CEST 2016
IPC: H04N 19/107
H04N 19/146
H04N 9/75
H04N 19/44
Applicants: INTEL CORPORATION
Inventors: LAWRENCE, Sean J.
ANGADIMANI, Raghavendra
Title: ENCODING TECHNIQUES FOR DISPLAY OF TEXT AND OTHER HIGH-FREQUENCY CONTENT
Abstract:
Techniques are disclosed for combining sub-sampled chroma samples across multiple frames to include all color information for a given scene. In accordance with some embodiments, each frame may be encoded such that it contains different color samples in a sub-sampled color format. A sliding window across the desired number of frames, which can be varied based on the level of sub-sampling, may select the frames with the sub-sampled color data to be used for combination to recreate the scene with all color information, in accordance with some embodiments. The disclosed techniques can be used, for example, in the transfer and rendering of streaming or stored compressed video content that includes text. To such ends, the disclosed techniques can be used in any one, or combination, of RGB-YUV conversion, video encoding, and video frame combination. More generally, the disclosed techniques can be utilized in video content creation, as well as consumption.