To provide an image decoding apparatus capable of decoding a run_before syntax with the reduced number of cycles.
An image decoding apparatus comprises: an update and output section 101 which inputs a bit stream and outputs the bit stream after updating a syntax in the head of the bit stream in accordance with the code length thereof; a decode section 102 which decodes the variable length code of the syntax from the bit stream update and output section 101 in response to a decode request; a zeros Left update section 103 which updates zeros Left with the decoded specific syntax; a run_before remaining update section 104 which updates the number of remaining run_before with the decoded specific syntax; and a syntax selection section 105 which selects the syntax to be decoded, wherein the run_before syntax of a plurality of zeros, and the run_before syntax of one non-zero, or the run_before syntax of a plurality of zeros are decoded at once.
OGAWA TAKAYA
OGAMI AKIHIRO
| JP2006157678A | 2006-06-15 | |||
| JP2006287862A | 2006-10-19 | |||
| JP2008034920A | 2008-02-14 |