| Paper: | IMDSP-P12.4 | ||
| Session: | Image Coding | ||
| Time: | Friday, May 21, 13:00 - 15:00 | ||
| Presentation: | Poster | ||
| Topic: | Image and Multidimensional Signal Processing: Image Quality | ||
| Title: | AN EFFICIENT ERROR CONCEALMENT METHOD FOR JPEG2000 IMAGE TRANSMISSION | ||
| Authors: | Jieyu Liu; Xi'an Jiaotong University | ||
| Guizhong Liu; Xi'an Jiaotong University | |||
| Long Liu; Xi'an Jiaotong University | |||
| Zhanhui Wang; Xi'an Jiaotong University | |||
| Abstract: | This paper presents two error concealment (EC) techniques for image transmission in JPEG2000, one for the lowest frequency coefficients (the low-frequency EC) and the other for high frequency coefficients (the high-frequency EC). The low-frequency EC algorithm uses a data hiding technique and the packet structure of JPEG2000. The low-frequency coefficients, which are taken as the hidden data, are extracted from the compressed bit stream, and embedded back into the same bit stream. The restored hidden data is used to conceal errors. The high-frequency reconstruction is performed on a bitplane basis. The damaged bitplanes are recovered according to the correlation in the wavelet subbands structure, in which the edge information is detected at first. Experiments show the effectiveness of these algorithms. | ||
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