Patent ID: 9565435
Date: 2017-02-07
CPC Classifications: H04N

Claim:
1. A method of video encoding, the method comprising: determining, a position of a last non-zero coefficient within each of a first video block having a first width, a second video block having a second width different from the first width and a third video block having a third width different from the first width and the second width; determining a context index value for each bin index value for video blocks having at least the first width, the second width and the third width; encoding, using a processor coupled to memory, the position of the last non-zero coefficient within each of the first video block, the second video block and the third video block as a string of binary values, wherein each binary value in said string corresponds to a bin index value encoded using a respective context index value, and wherein: encoding at least one of the first video block, the second video block and the third video block using two-level significance map coding by: generating a level-1 significance map, wherein each sub-block corresponds to a position in the level-1 significance map and the position is set to 1 if the sub-block has at least one non-zero value, otherwise the position is set to 0.