Integrated volume compression and visualization
VIS '97 Proceedings of the 8th conference on Visualization '97
MPEG Handbook
Image and Video Compression Standards: Algorithms and Architectures
Image and Video Compression Standards: Algorithms and Architectures
3D-DCT Quantization as a Compression Technique for Video Sequences
VSMM '97 Proceedings of the 1997 International Conference on Virtual Systems and MultiMedia
Hartley Transform in Compression of Medical Ultrasonic Images
ICIAP '99 Proceedings of the 10th International Conference on Image Analysis and Processing
An adaptive 3-D discrete cosine transform coder for medical image compression
IEEE Transactions on Information Technology in Biomedicine
A novel predictive coding algorithm for 3-D image compression
IEEE Transactions on Consumer Electronics
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This paper describes compression of patient videos using 3-D block transforms, namely discrete cosine, Hartley and Fourier. The transforms are applied on video image blocks of sizes 8×8×M where M represents the number of temporal frames considered in the transform. The resultant transform coefficients are quantized and then encoded using a combination of run length and Huffman coding schemes to achieve maximum compression. The performances of the three transforms are evaluated in terms of peak signal to noise ratio and bit rate. It is found from the experimental results, that the 3-D discrete cosine transform gives the best result.