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Comparative Analysis of Medical Image Compression Techniques and their Performance Evaluation for Telemedicine

In this paper a comparative analysis of different types of medical image compression techniques have been made for the telemedicine application. We find that lossless techniques are not much feasible for large data compression while the lossy compression techniques can compress a huge amount of data selectively to improve the over all compression ratio. The emphasis is done on the recent trends of compression. The wavelet transform based techniques (JPEG 2000) have shown better results in comparison to DCT based techniques (JPEG) due to manifold properties of Wavelet Transform over DCT. The results of the above techniques have been compared and performance evaluation in done on the basis of compression ratio, MSE, SNR, PSNR for medical images.