A Review on Medical Image Data Compression Techniques

In most of the telemedicine applications, the role of image compression techniques is important to deal with the medical images. This will be used for storage and transfer of data over a low bandwidth channel like the Internet by pathologist to a doctor for diagnosis problems of patient.If a medical image is compressed using methods of lossy compression, the doctor will not be able to perceive any deterioration in quality with respect to the original input image. One of the main disadvantage of the lossy compression algorithms that are commonly used for multimedia applications not for medical image, while the overall quality of the image can be controlled to some extent, in these cases, it is necessary to use lossless compression algorithms, because the compression and decompression of an image is identical to the original image since the information is preserved during the decompression process after image compression the reconstructed image is exact replica of the original image means no information is lost in the coding process. The aim of this paper is to provide a review on various image compression techniques, which is used in medical image compression, performance analysis and compared existing research on medical image compression.