A decoding unit (12) decodes an image according to JPEG 2000. A simplifying unit (30) comprises an automatic transformer (32) which compares an elapsed time to a time limit at each stage of decoding the image and switches the decoding process to a simplified process if necessary. For instance, if the...http://www.google.com.hk/patents/US7272263?utm_source=gb-gplus-share專利 US7272263 - Image decoding with a simplified process
