Diffusion driven reconstruction for positron emission tomography
- Department of Physics, Indian Institute of Science, Bangalore 560012 (India) and International Center for Theoretical Physics, Trieste 34014 (Italy)
Reconstruction map of the radionucleus distribution in positron emission tomography imaging is an ill-posed inverse problem. Existing reconstruction methodologies based on maximum a posteriori principle reconstruct images that suffer from artifacts. A method is proposed for generating better map of radionucleus distribution primarily based on surface diffusion model. The mean curvature diffusion has resulted in efficient noise suppression when applied to an isolated edge embedded in noise. Experimental results show that the proposed approach has better image resolution and edge-preservation capability. The reconstruction methodology will therefore find applications in biomedical imaging and bioengineering.
- OSTI ID:
- 20880091
- Journal Information:
- Applied Physics Letters, Vol. 89, Issue 19; Other Information: DOI: 10.1063/1.2387128; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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