ALTERNATIVE BLOCK CODING ORDER IN VIDEO CODING
Systems and methods for video decoding include receiving at least one syntax element indicative of a block coding order (BCO); and decoding at least one block in accordance with the BCO. Systems and methods for video encoding include determining for at least one region of a picture a block coding order (BCO) different than scan order; encoding at least one syntax element indicative of the determined BCO; and encoding at least one block; wherein the availability of at least one sample for prediction in the encoding process is determined by the BCO.
1 . A method for decoding video which is represented by two or more blocks, comprising:
receiving at least one syntax element indicative of a block coding order (BCO); and
decoding at least one of the two or more blocks in accordance with the BCO.
2 . The method of claim 1 , wherein the syntax element indicative of the BCO is part of a parameter set.
3 . The method of claim 2 , wherein the parameter set comprises a picture parameter set.
4 . The method of claim 1 , wherein the syntax element comprises at least a portion of a slice header.
5 . The method of claim 1 , further comprising:
during the decoding, determining an availability of at least one sample for prediction by using the BCO.
6 . The method of claim 1 , further comprising: using at least one coding tool of High Efficiency Video Coding (HEVC).
7 . The method of claim 1 , wherein the syntax element indicative of a BCO is associated with a region of a picture.
8 . The method of claim 7 , wherein the region is selected from the group consisting of a slice, a column, and a region of interest.
9 . The method of claim 7 , wherein the region is selected from the group consisting of two or more of: a slice, a column, and a region of interest.
10 . A method for encoding video which is represented by two or more blocks, comprising
determining for at least one region of a picture a block coding order (BCO) different than scan order;
encoding at least one syntax element indicative of the determined BCO; and
encoding at least one of the two or more blocks;
during the encoding at least one of the two or more blocks, determining availability of at least one sample for prediction by using the BCO.
11 . The method of claim 9 , wherein the determining uses rate-distortion optimization.
12 . A system for decoding video which is represented by two or more blocks, comprising:
a decoder configured to:
receive at least one syntax element indicative of a block coding order (BCO); and
decode at least one of the two or more blocks in accordance with the BCO.
13 . A system for encoding video which is represented by two or more blocks comprising:
an encoder configured to:
determine for at least one region of a picture a block coding order (BCO) different than scan order;
encode at least one syntax element indicative of the determined BCO; and
encode at least one of the two or more blocks;
during the encoding at least one of the two or more blocks, determine availability of at least one sample for prediction by using the BCO.
14 . A non-transitory computer readable medium comprising a set of instructions to direct a processor to perform the methods of one of claims 1 to 11 .