Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.patcog.2011.03.009
DC Field | Value | |
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dc.title | Defocus map estimation from a single image | |
dc.contributor.author | Zhuo, S. | |
dc.contributor.author | Sim, T. | |
dc.date.accessioned | 2013-07-23T09:32:05Z | |
dc.date.available | 2013-07-23T09:32:05Z | |
dc.date.issued | 2011 | |
dc.identifier.citation | Zhuo, S., Sim, T. (2011). Defocus map estimation from a single image. Pattern Recognition 44 (9) : 1852-1858. ScholarBank@NUS Repository. https://doi.org/10.1016/j.patcog.2011.03.009 | |
dc.identifier.issn | 00313203 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/43365 | |
dc.description.abstract | In this paper, we address the challenging problem of recovering the defocus map from a single image. We present a simple yet effective approach to estimate the amount of spatially varying defocus blur at edge locations. The input defocused image is re-blurred using a Gaussian kernel and the defocus blur amount can be obtained from the ratio between the gradients of input and re-blurred images. By propagating the blur amount at edge locations to the entire image, a full defocus map can be obtained. Experimental results on synthetic and real images demonstrate the effectiveness of our method in providing a reliable estimation of the defocus map. © 2011 Elsevier Ltd. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.patcog.2011.03.009 | |
dc.source | Scopus | |
dc.subject | Defocus blur | |
dc.subject | Defocus magnification | |
dc.subject | Defocus map | |
dc.subject | Gaussian gradient | |
dc.subject | Image processing | |
dc.type | Conference Paper | |
dc.contributor.department | COMPUTER SCIENCE | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.description.doi | 10.1016/j.patcog.2011.03.009 | |
dc.description.sourcetitle | Pattern Recognition | |
dc.description.volume | 44 | |
dc.description.issue | 9 | |
dc.description.page | 1852-1858 | |
dc.description.coden | PTNRA | |
dc.identifier.isiut | 000291834800003 | |
Appears in Collections: | Staff Publications |
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