Title :
An error concealment algorithm using DCT transform domain information
Author :
Se-Yoon Jeong ; Lee, Jae Yeon ; Bae, Younglae J. ; Jeong, Se-Yoon
Author_Institution :
Syst. Eng. Res. Inst., Taejon, South Korea
Abstract :
a In this paper, we propose an algorithm to conceal bit errors in still image that is coded using block discrete cosine transforms and variable-length codes. We keep the algorithm simple so that real time decoding and concealment is possible. We take the edge components of an image into consideration in order to achieve satisfactory quality. The proposed algorithm is activated only when errors are detected by adding the self-synchronizing code, by which the calculation required for the decoder is reduced
Keywords :
data compression; decoding; discrete cosine transforms; error detection; image coding; transform coding; variable length codes; DCT transform domain information; block discrete cosine transforms; decoding; edge components; error concealment algorithm; image coding; self-synchronizing code; still image; variable-length codes; Bandwidth; Communication channels; Data compression; Decoding; Discrete cosine transforms; Error correction; Image coding; Redundancy; Transform coding; Video compression;
Conference_Titel :
TENCON '97. IEEE Region 10 Annual Conference. Speech and Image Technologies for Computing and Telecommunications., Proceedings of IEEE
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-4365-4
DOI :
10.1109/TENCON.1997.648267
