Patent ID: 9485523
Filing Date: 2016-11-01
CPC Classification: H04N

Claim Text:
1. A method for entropy-decoding video data, the method comprising: receiving a bitstream including a coefficient regarding a residual block; performing arithmetic decoding on the received bitstream to generate a binarized coefficient; and inversely binarizing the binarized coefficient including a first bin string related to a truncated inverse binarization method, using at least one from among the truncated inverse binarization method and an Exponential Golomb inverse binarization method to reconstruct the coefficient, wherein: when the binarized coefficient further includes second bin string related to a maximum code value of the truncated inverse binarization method, the binarized coefficient is inversely binarized using the truncated inverse binarization method and the Exponential Golomb inverse binarization method, the second bin string is related to the Exponential Golomb inverse binarization method, and the maximum code value of the truncated inverse binarization method varies according to a position of the coefficient in the residual block, when the binarized coefficient does not include the second bin string, the inversely-binarized coefficient is less than or equal to the maximum code value of the truncated inverse binarization method, and when the binarized coefficient includes the first bin string and the second bin string, the inversely-binarized coefficient is greater than the maximum code value of the truncated inverse binarization method.