| Paper Details: | Downloads: 651 |
| Serial Number: | P1150546003
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| Title: | Efficient Secured Lossless Coding of Medical Images – Using Region Based Modified SPIHT and Modified Runlength Coding for Character Representation
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| Authors: | P.Geetha and Dr. S.Annadurai
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| Abstract: | Lossless compression schemes with secure transmission play a key role in telemedicine applications that help in accurate diagnosis and research. Traditional cryptographic algorithms for data security are not fast enough to process vast amount of data. Hence a novel Secured lossless compression approach proposed in this paper is based on reversible integer wavelet transform, region based modified SPIHT algorithm , new modified runlength coding for character representation and selective bit scrambling. The use of the lifting scheme allows to generate truly lossless integer-to-integer wavelet transforms. Images are compressed/decompressed by region based modified SPIHT algorithm and the proposed modified runlength coding greatly improves the compression performance and also increases the security level. This work employs scrambling method which is fast, simple to implement and it also provides security. Lossless compression ratios and distortion performance of this proposed method are found to be better than other lossless techniques.
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| Keywords: | Region based modified SPIHT algorithm, lifting scheme, lossless compression, reversible integer wavelet transform, secure transmission, selective bit scrambling, modified runlength coding.
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| Journal/Conference: | International Journal of Graphics, Vision and Image Processing
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| Volume: | 5
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| Issue: | 9
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| Submission Date: | 5/1/2005 12:00:00 AM
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| Review Date: | 7/1/2005 12:00:00 AM
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| Publishing Date: | 12/1/2005 12:00:00 AM
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| Article Downloads: | 651
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