| 摘要 |
<p>In the present invention, an image-data binary arithmetic decoding device subjects binary sequences, where the prefix is continuous 1s and a termination of 0, to binary arithmetic decoding. The image-data binary arithmetic decoding device is provided with a number-of-continuous-1s determination means that compares the range of binary arithmetic encoding and the binary arithmetic encoding offset after performing N (N: natural numbers) bit look-ahead from a bitstream, and determines the number of continuous 1s in binary sequences of N bits.</p> |
