DocumentCode :
2423792
Title :
Robust decoding for reduced error propagation of DC/AC prediction errors
Author :
Zhang, Ximin ; Vetro, Anthony ; Sun, Huifang ; Shi, Yun-Qing
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
fYear :
2001
fDate :
2001
Firstpage :
91
Lastpage :
94
Abstract :
This paper investigates the problem of error propagation in MPEG-4 video decoding when the DCT coefficients have been damaged. The problem is unique since the Intra DC/AC prediction tool adopted by the standard allows for coefficients to be predicted from both the horizontal and vertical directions. Although the standard offers a variety of error resilience techniques to prevent such errors from propagating, they are encoder dependent and one cannot guarantee that suitable encoding parameters have been chosen. Therefore, we propose a robust decoding method that reduces the propagation of such errors
Keywords :
code standards; decoding; discrete cosine transforms; error correction codes; prediction theory; transform coding; video coding; DCT coefficients; MPEG-4; error propagation; intra DC/AC prediction tool; prediction errors; robust decoding; standard; video decoding; Communication channels; Decoding; Discrete cosine transforms; Error correction; Laboratories; MPEG 4 Standard; Resilience; Robustness; Sun; Video compression;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
MPEG-4. 2001 Proceedings of Workshop and Exhibition on
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-7165-8
Type :
conf
DOI :
10.1109/MPEG.2001.996456
Filename :
996456
Link To Document :
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