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EFFICIENT 4D MOTION COMPENSATED LOSSLESS COMPRESSION OF DYNAMIC VOLUMETRIC MEDICAL IMAGE DATA
 

Summary: EFFICIENT 4D MOTION COMPENSATED LOSSLESS COMPRESSION OF DYNAMIC
VOLUMETRIC MEDICAL IMAGE DATA
V. Sanchez, P. Nasiopoulos, and R. Abugharbieh
Department of Electrical and Computer Engineering, University of British Columbia,
Vancouver, Canada
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

  

Source: Abugharbieh, Rafeef - Department of Electrical and Computer Engineering, University of British Columbia

 

Collections: Biology and Medicine; Computer Technologies and Information Sciences