Moving image encoding apparatus

A moving image encoding apparatus including

• block generating means (12) for receiving moving image data in units of frames, dividing the received data into a plurality of blocks, and outputting the data of the respective blocks in a predetermined order, and
• mode-specific encoding means (11, 13-20), having intra-encoding mode and inter-frame encoding mode, for encoding in a designated mode the data of the respective blocks sequentially output from said block generating means, characterized by comprising:
• information extraction means (21, 24) for extracting information for determination of a degree of influence of a data error from an encoded block processed by said mode-specific encoding means (11, 13-20);
• parameter value control means (22) for, when intra-encoding is performed by said mode-specific encoding means (11, 13-20), setting an initial value as a parameter value of a corresponding block in advance, comparing the information extracted by said information extraction means (21, 24) with a predetermined reference value, and updating and storing the parameter value on the basis of the comparison result;
• and
• intra/inter determination means (23) for, when data of a block of a next frame, output from said block generating means (11), is to be encoded, comparing a parameter value of a corresponding block, stored in said parameter value control means (22), with a predetermined boundary value, determining on the basis of the comparison result whether to execute refresh by intra-encoding, and designating a mode based on the determination result with respect to said mode-specific encoding means (11, 13-20).