Directed interpolation and data post-processing
An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.
1. A method for decoding a video bitstream, the method comprising:
receiving, at a decoder, the video bitstream comprising at least one region comprising two images;
receiving first metadata in the video bitstream identifying a first post-decoding process to be applied to the at least one region;
receiving second metadata in the video bitstream identifying second post-decoding process to be applied to the at least one region;
selecting, by the decoder, one of the first metadata or the second metadata; and
applying the one of the first post-decoding process or the second post-decoding process identified by the selected metadata to the at least one region without applying the other of the first metadata or the second metadata to the at least one region,
wherein the video bitstream further comprises a second region different from the at least one region, and
wherein the one of the first post-decoding process or the second post-decoding process identified by the selected metadata is not applied to the second region.
2. The method of claim 1 , wherein the second post-decoding process is related to de-blocking.
3. The method of claim 1 , wherein the second post-decoding process maps the at least one region to a target device.
4. The method of claim 1 , wherein the second post-decoding process was selected during studio work prior to mastering the video bitstream.
5. The method of claim 1 , wherein the first post-decoding process is at least one of de-interleaving and upsampling.