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Edge Localized Image Sharpening via Reassignment with Application to Computed Tomography

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dc.contributor.author Dorney, Timothy D.
Bhashyam, Srikrishna
Doran, Andrew
Choi, Hyeokho
Flandrin, Patrick
Baraniuk, Richard G.
dc.creator Dorney, Timothy D.
Bhashyam, Srikrishna
Doran, Andrew
Choi, Hyeokho
Flandrin, Patrick
Baraniuk, Richard G.
dc.date.accessioned 2007-10-31T00:42:52Z
dc.date.available 2007-10-31T00:42:52Z
dc.date.issued 2000-07-01
dc.date.submitted 2000-07-01
dc.identifier.uri http://hdl.handle.net/1911/19860
dc.description Conference Paper
dc.description.abstract Traditional filtering methods operate on the entire signal or image. In some applications, however, errors are concentrated in specific regions or features. A prime example is images generated using computed tomography. Practical implementations limit the amount of high frequency content in the reconstructed image, and consequently, edges are blurred. We introduce a new post-reconstruction edge enhancement algorithm, based on the reassignment principle and wavelets, that localizes its sharpening exclusively to edge features. Our method enhances edges without disturbing the low frequency textural details.
dc.description.sponsorship Defense Advanced Research Projects Agency
dc.description.sponsorship Army Research Office
dc.description.sponsorship National Science Foundation
dc.subject Image enhancement
edge sharpening
computed tomography
wavelets
reassignment
dc.title Edge Localized Image Sharpening via Reassignment with Application to Computed Tomography
dc.type Conference Paper
dc.date.note 2001-08-18
dc.citation.bibtexName inproceedings
dc.date.modified 2006-06-05
dc.contributor.center Center for Multimedia Communications (http://cmc.rice.edu/)
dc.contributor.center Digital Signal Processing (http://dsp.rice.edu/)
dc.subject.keyword Image enhancement
edge sharpening
computed tomography
wavelets
reassignment
dc.citation.volumeNumber 4121
dc.citation.location San Diego, CA
dc.citation.conferenceName SPIE Technical Conference on Mathematical Modeling, Estimation, and Imaging
dc.identifier.citation T. D. Dorney, S. Bhashyam, A. Doran, H. Choi, P. Flandrin and R. G. Baraniuk,"Edge Localized Image Sharpening via Reassignment with Application to Computed Tomography," in SPIE Technical Conference on Mathematical Modeling, Estimation, and Imaging,
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  • ECE Publications [1028 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [512 items]
    Publications by Rice Faculty and graduate students in digital signal processing.
  • CMC Publications [272 items]
    Publications by Rice Faculty and graduate students in multimedia communications