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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2008.2007067
|2 doi
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|a pubmed24n0618.xml
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Cheng, Cho-Chun
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Subband weighting with pixel connectivity for 3-D wavelet coding
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| 264 |
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1 |
|c 2009
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 19.02.2009
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| 500 |
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|a Date Revised 19.12.2008
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|a published: Print
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|a Citation Status MEDLINE
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| 520 |
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|a Performing optimal bit-allocation with 3-D wavelet coding methods is difficult because energy is not conserved after applying the motion-compensated temporal filtering (MCTF) process and the spatial wavelet transform. The problem cannot be solved by extending the 2-D wavelet coefficients weighting method directly and then applying the result to 3-D wavelet coefficients, since this approach does not consider the complicated pixel connectivity that results from the lifting-based MCTF process. In this paper, we propose a novel weighting method, which takes account of the pixel connectivity, to solve the problem and derive the effect of the quantization error of a subband on the reconstruction error of a group of pictures. We employ the proposed method on a 2-D + t structure with different temporal filters, namely the 5-3 filter and the 9-7 filter. Experiments on various coding parameters and sequences show that the proposed approach improves the bit-allocation performance over that obtained by using the weightings derived without considering the pixel connectivity in the MCTF process
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Peng, Guan-Ju
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hwang, Wen-Liang
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 18(2009), 1 vom: 15. Jan., Seite 52-62
|w (DE-627)NLM09821456X
|x 1941-0042
|7 nnns
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| 773 |
1 |
8 |
|g volume:18
|g year:2009
|g number:1
|g day:15
|g month:01
|g pages:52-62
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| 856 |
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|u http://dx.doi.org/10.1109/TIP.2008.2007067
|3 Volltext
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|d 18
|j 2009
|e 1
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|c 01
|h 52-62
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