Abstract
Local reconstruction algorithm has been proposed to reduce the reconstructing time in the single photon emission computer tomography (SPECT). To improve the image quality, it is necessary to de-noise the projection image before reconstruction. Revised biva-shrinkage de-nosing based on wavelet transformation, which has a property of reserving detail information, is used to pre-treat the image. The mean square error (MSE) is adopted to evaluate the de-noising image of local reconstruction. The results show that wavelet based de-noising method is effective in local reconstruction algorithm.
Original language | English |
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Pages (from-to) | 956-959 |
Number of pages | 4 |
Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
Volume | 30 |
Issue number | 8 |
Publication status | Published - Aug 2010 |
Keywords
- Biva-shrinkage
- Local reconstruction
- Mean square error(MSE)
- Single photon emission computer tomography(SPECT)
- Wavelet transformation