PMID- 19163339
OWN - NLM
STAT- MEDLINE
DCOM- 20090428
LR  - 20200928
IS  - 2375-7477 (Print)
IS  - 2375-7477 (Linking)
VI  - 2008
DP  - 2008
TI  - Wavelet domain Bayesian method for high noise level PET image reconstruction.
PG  - 3008-11
LID - 10.1109/IEMBS.2008.4649836 [doi]
AB  - In this paper, a new maximum a posterior(MAP) method for PET image reconstruction 
      defined in wavelet domain is proposed. Compared to the conventional MAP methods 
      with Markov Random Field (MRF) prior models, the proposed method, named WD-MAP 
      method, has better performance in characterize both local and global feature of 
      reconstructed image due to the wavelet transform. Wavelet packet decomposition 
      strategy is applied to further improve the reconstruction quality. The 
      convergence speed of WD-MAP method is accelerated by adopting conjugate 
      gradient(CG) technique. Simulated experiment suggests that the proposed method 
      offers competitive performance in PET image reconstruction.
FAU - Xie, L
AU  - Xie L
AD  - Laboratory of Image Science and Technology Southeast University, Nanjing, China.
FAU - Hu, Y
AU  - Hu Y
FAU - Luo, L
AU  - Luo L
FAU - Shu, H
AU  - Shu H
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Annu Int Conf IEEE Eng Med Biol Soc
JT  - Annual International Conference of the IEEE Engineering in Medicine and Biology 
      Society. IEEE Engineering in Medicine and Biology Society. Annual International 
      Conference
JID - 101763872
SB  - IM
MH  - Algorithms
MH  - Bayes Theorem
MH  - Brain/*diagnostic imaging
MH  - Computer Simulation
MH  - Humans
MH  - Image Enhancement/*methods
MH  - Image Interpretation, Computer-Assisted/*methods
MH  - Image Processing, Computer-Assisted
MH  - Imaging, Three-Dimensional/*methods
MH  - Markov Chains
MH  - Models, Statistical
MH  - Phantoms, Imaging
MH  - Photons
MH  - Positron-Emission Tomography/instrumentation/*methods
MH  - Reproducibility of Results
EDAT- 2009/01/24 09:00
MHDA- 2009/04/29 09:00
CRDT- 2009/01/24 09:00
PHST- 2009/01/24 09:00 [entrez]
PHST- 2009/01/24 09:00 [pubmed]
PHST- 2009/04/29 09:00 [medline]
AID - 10.1109/IEMBS.2008.4649836 [doi]
PST - ppublish
SO  - Annu Int Conf IEEE Eng Med Biol Soc. 2008;2008:3008-11. doi: 
      10.1109/IEMBS.2008.4649836.