Title :
JPEG compression/decompression via parallel processing
Author :
Patrick, John S. ; Sanders, Jake L. ; DeBrunner, Linda S. ; DeBrunner, Victor E. ; Radharkrishnan, S.
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma Univ., Norman, OK, USA
Abstract :
In this paper, a method for a parallel pipelined implementation of baseline JPEG compression and decompression is introduced for use on 4 Texas Instruments´ TMS320C40 digital signal processors. A PC host with 2 Sonitech dual ´C40 boards is used for this implementation. The DCT is implemented using 2 ´C40s, while quantization and Huffman encoding are each performed using a single ´C40. This novel implementation provides significant speedup over a sequential implementation by pipelining 8/spl times/8 blocks, through the parallel implementation.
Keywords :
Huffman codes; data compression; decoding; digital signal processing chips; discrete cosine transforms; image coding; image processing equipment; parallel processing; pipeline processing; DCT; Huffman encoding; JPEG; Sonitech dual ´C40 boards; TMS320C40 digital signal processors; Texas Instruments DSP; image compression; image decompression; parallel processing; pipelined implementation; quantization; Compression algorithms; Computer networks; Digital signal processors; Discrete cosine transforms; ISO standards; Image coding; Instruments; Parallel processing; Quantization; Transform coding;
Conference_Titel :
Signals, Systems and Computers, 1996. Conference Record of the Thirtieth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-7646-9
DOI :
10.1109/ACSSC.1996.601094
