16 September 1994 New approach to inter-slice coding of magnetic resonance images
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Proceedings Volume 2308, Visual Communications and Image Processing '94; (1994) https://doi.org/10.1117/12.185909
Event: Visual Communications and Image Processing '94, 1994, Chicago, IL, United States
In this paper we present an inter-slice coding scheme for magnetic resonance (MR) image sequences which is based on a triangular matching technique. This scheme provides a powerful tool for MR image sequence compression since there exists a great deal of deformation between contiguous slices of 3D MR data. The proposed inter-slice coding scheme takes advantage of triangular deformation to remove redundancies in the third dimension. A residual image is formed by estimating and compensating for the triangular deformation in the previous slice, and subtracting this from the original slice. The DCT is used to de-correlate the residue signal. DC components are encoded losslessly using DPCM and Huffman codes. Different banks of entropy-constraint scalar quantizers are designed for the AC components. Each AC coefficient is encoded using an appropriate scalar codebook subject to a bit-allocation procedure. The new inter-slice coding scheme is tested on an MR heart sequence. It shows superior results over intra-slice and other inter-slice schemes. The compressed images displayed on the monitor are imperceptible from the original at our lowest bit-rates.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nader Mohsenian, Nader Mohsenian, Aria Nosratinia, Aria Nosratinia, Bede Liu, Bede Liu, Michael T. Orchard, Michael T. Orchard, } "New approach to inter-slice coding of magnetic resonance images", Proc. SPIE 2308, Visual Communications and Image Processing '94, (16 September 1994); doi: 10.1117/12.185909; https://doi.org/10.1117/12.185909

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