MOVING PICTURE ENCODING METHOD AND MOVING PICTURE DECODING METHOD

摘要

A moving picture encoding device (100) includes: an encoding unit (110) for encoding an input image and generating a code string; and a film grain encoding unit (130) for selecting a film grain component of at least one macro block so as to be a representative pattern and encoding the representative pattern. On the other hand, a moving picture decoding device (200) includes: a decoding unit (210) for decoding the code string and generating decoded image data; a film grain generating unit (230) for generating a superimposing pattern according to the representative pattern and additional information; and a synthesis unit (240) for combining the decoded image data with the superimposing pattern.