Title :
Optimizing the Pictorial Compacted Data Detection Process for Working at the Noisy Environment, Using Reversible Symmetrical Codes
Author :
Shafafi, Kamran ; Samanfar, Amin ; Saremian, Emadodin ; Moradtalab, Omid
Author_Institution :
Dept. of Electr. Engireering, Islamic Azad Univ., Khorramabad, Iran
Abstract :
Variable-length codes, using source statistical features, improve the encoding. However, using these codes can results in error propagation in bit string transmitted to noisy transmission environments. This paper has used reversible symmetrical codes in the bit string obtained from JPEG compressor in order to overcome this problem. several examples of reversible code design algorithm have been reviewed and a symmetrical code based on Huffman code has been analyzed and deigned for JPEG compressor. JPEG compressor has been simulated by Huffman standard code and by reversible symmetrical code and the amount of their compression has been compared for several pictures Also, optimization of detection trend in noisy condition has been displayed.
Keywords :
Huffman codes; error statistics; statistical analysis; Huffman code; JPEG compressor; encoding; error propagation; noisy environment; pictorial compacted data detection process; reversible code design algorithm; reversible symmetrical codes; source statistical features; variable-length codes; Algorithm design and analysis; Code standards; Discrete cosine transforms; Encoding; Image coding; Image converters; Noise figure; Pixel; Transform coding; Working environment noise; H-263-mp6-4- reversible variable – length code; Huffman code; compression;
Conference_Titel :
Information and Multimedia Technology, 2009. ICIMT '09. International Conference on
Conference_Location :
Jeju Island
Print_ISBN :
978-0-7695-3922-5
DOI :
10.1109/ICIMT.2009.76
