Title :
An Efficient Medical Image Compression Scheme
Author :
Li, Xiaofeng ; Shen, Yi ; Ma, Jiachen
Author_Institution :
Dept. of Control Sci. & Eng., Harbin Inst. of Technol.
Abstract :
In this paper, a fast lossless compression scheme is presented for the medical image . This scheme consists of two stages. In the first stage, a differential pulse code modulation (DPCM) is used to decorrelate the raw image data, therefore increasing the compressibility of the medical image. In the second stage, an effective scheme based on the Huffman coding method is developed to encode the residual image. This newly proposed scheme could reduce the cost for the Huffman coding table while achieving high compression ratio. With this algorithm, a compression ratio higher than that of the lossless JPEG method for image can be obtained. At the same time, this method is quicker than the lossless JPEG2000. In other words, the newly proposed algorithm provides a good means for lossless medical image compression
Keywords :
Huffman codes; biomedical MRI; diagnostic radiography; differential pulse code modulation; image coding; medical image processing; Huffman coding; MR images; X-ray images; differential pulse code modulation; fast lossless compression scheme; image data decorrelation; image encoding; lossless JPEG2000; medical image compression; Biomedical imaging; Digital images; Huffman coding; Image coding; Image storage; Magnetic resonance imaging; Medical diagnostic imaging; Pixel; Transform coding; X-ray imaging; Huffman coding; Lossless image compression; medical image;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1617217
