Error concealment algorithm using interested direction for JPEG 2000 image transmission
Digital image transmission is widely used in consumer products, e.g., digital camera and cellular phone, etc. The newly defined JPEG 2000 delivers image with lower bit rate in the Internet and wireless communications. However, JPEG 2000 decoding is processed bitplane by bitplane. Any data loss in bitstream affects the consequent bitplanes and even possible destroy the whole picture. We propose a new algorithm to recover the damaged bitplanes data according to the interested directional sets (IDS) of in-subband. The proposed algorithm is quite simple, but is very efficient in concealing the loss data of any subband in streaming real-time video data in the Internet and wireless communications. The simulation results show that the proposed algorithm has 1.5-3dB improvements than previously presented error resilient mechanism. In a subjective view, the proposed concealment algorithm can achieve much smoother edges on the reconstructed images.