Error-resilient image coding (ERIC) with smart-IDCT error concealment technique for wireless multimedia transmission

The fields of multimedia and wireless communications have grown rapidly, leading to a great demand for an image coding scheme that has both compression and error-resilient capabilities. Because bandwidth is a valuable and limited resource, the compression technique is applied to wireless multimedia...

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Vydáno v:	IEEE transactions on circuits and systems for video technology Ročník 13; číslo 2; s. 176 - 181
Hlavní autoři:	Yew-San Lee, Ong, K.-K., Chen-Yi Lee
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.02.2003 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Applied sciences Bandwidth Blocking Coding, codes Compressing Decoding Delay Entropy coding Errors Exact sciences and technology Forward error correction Frequency synchronization Image coding Image processing Information, signal and communications theory Multimedia Multimedia communication Multimedia communications Propagation Signal and communications theory Signal processing Telecommunications and information theory Transform coding Wireless communication Wireless communications Performance evaluation Image processing Discrete cosine transform (DCT) Wireless telecommunication Inverse transformation Image compression error resilient Multimedia communication VLC Image quality Image coding synchronization Error correction Growth of error Discrete cosine transforms Variable length code
ISSN:	1051-8215, 1558-2205
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Popis
Shrnutí:	The fields of multimedia and wireless communications have grown rapidly, leading to a great demand for an image coding scheme that has both compression and error-resilient capabilities. Because bandwidth is a valuable and limited resource, the compression technique is applied to wireless multimedia communication. However, strong data dependency will be created while the bit-rate reduction is achieved. Transmission errors always results in significant quality degradation. An error-resilient image coding for discrete cosine transform-based image compression is proposed. It can successfully prevent errors from propagating across image block boundaries with little overhead. Additionally, a novel post-processing error concealment scheme is presented to retain low-frequency information and discard suspicious high-frequency information. Low-resolution information, rather than total corruption, can be obtained during the image-decoding process. Because of low complexity and latency properties, it is very suitable for wireless mobile applications. Simulation results show that good image quality (PSNR=31.78dB) and a low fraction of corruptive blocks (less than 5%) can be achieved even when the bit error rate is 0.1%.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23
ISSN:	1051-8215 1558-2205
DOI:	10.1109/TCSVT.2002.808430