A high-speed real-time processing arithmetic entropy coding system based on Joint Photographic Experts Group (JPEG) 2000 standard in the present invention includes: a probability space value predictor for judging the type of encoded symbols according to dual context symbol pairs which are inputted in parallel and composed of context symbols and context decision, then updating and outputting probability space values and coding necessary parameters according to the type of the encoded symbols; a code value predictor for updating code values according to the type of the encoded symbols, and judging current normalization type according to the updated probability space values and coding parameters, then performing normalization processing and outputting normalized code streams and evacuation code streams; a code stream buffer for respectively buffering the normalized code streams and evacuation code streams based on category in order of precedence of the code stream output and according to the number of the outputted bytes of the normalized code streams and evacuation code streams, then outputting them in parallel; and an output selector for according to the specified priority serially outputting the normalized code streams and evacuation code streams sequentially, which are outputted in parallel in the step of the code stream buffering.
HIGH-SPEED REAL-TIME PROCESSING ARITHMETIC ENTROPY CODING SYSTEM BASED ON JOINT PHOTOGRAPHIC EXPERTS GROUP (JPEG) 2000 STANDARD