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- W2114729870 abstract "Dynamic volumetric (four dimensional- 4D) medical images are typically huge in file size and require a vast amount of resources for storage and transmission purposes. In this paper, we propose an efficient lossless compression method for 4D medical images that is based on a multi-frame motion compensation process employing a 4D search, variable block- sizes and bi-directional prediction. Data redundancies are reduced by recursively applying multi-frame motion compensation in the spatial and temporal dimensions. The proposed method also uses a novel differential coding algorithm to reduce redundancies in motion vectors and a new context-based adaptive binary arithmetic coder (CABAC) for compression of the residual data. Performance evaluations on real medical images of varying modality resulted in lossless compression ratios of up to 16:1." @default.
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- W2114729870 date "2008-03-01" @default.
- W2114729870 modified "2023-09-23" @default.
- W2114729870 title "Efficient 4D motion compensated lossless compression of dynamic volumetric medical image data" @default.
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- W2114729870 doi "https://doi.org/10.1109/icassp.2008.4517668" @default.
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