Proceedings 14th IEEE Symposium on Computer-Based Medical Systems. CBMS 2001
DOI: 10.1109/cbms.2001.941772
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New low-pass split wavelet pyramids and their application to efficient zerotree coding of medical images

Abstract: We have developed and tested alternative transfortris, which create different zerotree structures. These new transforrris cati .rigt1ijcicantly ittiprove the pegortnatice of the compression algorithms that use zerotrees without a significant modification of the latter. A new wavelet pyramid that results in an effective non-integer up-and dowtisatriplitrg of the high frequency subbands is presented in this paper. Non-integer subsatripled pyramids cati also be used to decrease data dependency in the cotripressio… Show more

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“…A method for creating non-integer subsampled pyramids (NISUMP) was previously reported in [6]. The forward transform was based on applying the decomposition filters of a 3-channel PR filter bank and subsampling by 3 in that dimension, then merging the two resulting higher frequency subbands into one double-width subband using the reconstruction filters of a 2-channel PR bank.…”
Section: Non-integer Subsampled Pyramidsmentioning
confidence: 99%
“…A method for creating non-integer subsampled pyramids (NISUMP) was previously reported in [6]. The forward transform was based on applying the decomposition filters of a 3-channel PR filter bank and subsampling by 3 in that dimension, then merging the two resulting higher frequency subbands into one double-width subband using the reconstruction filters of a 2-channel PR bank.…”
Section: Non-integer Subsampled Pyramidsmentioning
confidence: 99%