Prior Image Constrained Compressed Sensing (PICCS)

Guang Hong Chen, Jie Tang, Shuai Leng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

50 Citations (Scopus)

Abstract

It has been known for a long time that, in order to reconstruct a streak-free image in tomography, the sampling of view angles should satisfy the Shannon/Nyquist criterion. When the number of view angles is less than the Shannon/Nyquist limit, view aliasing artifacts appear in the reconstructed images. Most recently, it was demonstrated that it is possible to accurately reconstruct a sparse image using highly undersampled projections provided that the samples are distributed at random. The image reconstruction is carried out via an L1 norm minimization procedure. This new method is generally referred to as compressed sensing (CS) in literature. Specifically, for an N × N image with S significant image pixels, the number of samples for an accurate reconstruction of the image is O(S ln N) . In medical imaging, some prior images may be reconstructed from a different scan or from the same acquired time-resolved data set. In this case, a new image reconstruction method, Prior Image Constrained Compressed Sensing (PICCS), has been recently developed to reconstruct images using a vastly undersampled data set. In this paper, we introduce the PICCS algorithm and demonstrate how to use this new algorithm to solve problems in medical imaging.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume6856
DOIs
StatePublished - 2008
Externally publishedYes
Event9th Conference on Photons Plus Ultrasound: Imaging and Sensing 2008 - San Jose, CA, United States
Duration: Jan 20 2008Jan 23 2008

Other

Other9th Conference on Photons Plus Ultrasound: Imaging and Sensing 2008
CountryUnited States
CitySan Jose, CA
Period1/20/081/23/08

Fingerprint

Compressed sensing
Medical imaging
Image reconstruction
Tomography
Pixels
Sampling

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Chen, G. H., Tang, J., & Leng, S. (2008). Prior Image Constrained Compressed Sensing (PICCS). In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 6856). [685618] https://doi.org/10.1117/12.770532

Prior Image Constrained Compressed Sensing (PICCS). / Chen, Guang Hong; Tang, Jie; Leng, Shuai.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6856 2008. 685618.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chen, GH, Tang, J & Leng, S 2008, Prior Image Constrained Compressed Sensing (PICCS). in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 6856, 685618, 9th Conference on Photons Plus Ultrasound: Imaging and Sensing 2008, San Jose, CA, United States, 1/20/08. https://doi.org/10.1117/12.770532
Chen GH, Tang J, Leng S. Prior Image Constrained Compressed Sensing (PICCS). In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6856. 2008. 685618 https://doi.org/10.1117/12.770532
Chen, Guang Hong ; Tang, Jie ; Leng, Shuai. / Prior Image Constrained Compressed Sensing (PICCS). Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 6856 2008.
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