Image decoding method, image decoding apparatus, and data storage medium

摘要

When coded image data which are obtained by coding image data by a coding method including an inter-frame predictive coding process are decoded, even when the decoding is started from an inter-frame predictive coded frame, the display of a decoded image having few disturbances is started, without the display being considerably delayed from the timing of input of coded image data. An image decoding apparatus 100a for decoding coded image data and displaying a decoded image on the basis of decoded image data comprises a frame memory 112a which holds decoded image data 107 of an already processed frame as reference data which are to be used for the decoding process for the inter-frame predictive coded frame, and initializes the storage area of the frame memory 112a at the initiation of the decoding process for the coded image data.