| 摘要 |
Systems, methods, and instrumentalities are provided for reusing coding information extracted from SHVC bitstream during transcoding process, refining the coding information, and/or using the refined coding information in transcoding. A first bitstream, such as an SHVC bitstream that may include a base layer and/or one or more enhancement layers, may be received. Coding information, such as coding unit depth, coding unit prediction mode, motion information, intra direction mode, and/or transform unit depth may be extracted from the first bitstream. The first bitstream can be transcoded into a second bitstream (e.g., such as an HEVC bitstream) by refining and/or reusing at least part of the extracted coding information. The transcoder can adaptively select a coding information reuse transcoding mode from one or more, or a plurality, of transcoding modes, perhaps for example based on video signal characteristics. |
