C
Changyin Zhou
Researcher at Columbia University
Publications - 28
Citations - 1482
Changyin Zhou is an academic researcher from Columbia University. The author has contributed to research in topics: Aperture & Depth of field. The author has an hindex of 15, co-authored 26 publications receiving 1404 citations. Previous affiliations of Changyin Zhou include Fudan University & Microsoft.
Papers
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Journal ArticleDOI
Flexible Depth of Field Photography
TL;DR: Flexible DOF imaging can open a new creative dimension in photography and lead to new capabilities in scientific imaging, vision, and graphics.
Book ChapterDOI
Flexible Depth of Field Photography
TL;DR: This paper presents an imaging system that enables one to control the depth of field in new and powerful ways, and describes extended DOF, where a large depth range is captured with a very wide aperture but with nearly depth-independent defocus blur.
Proceedings ArticleDOI
What are good apertures for defocus deblurring
Changyin Zhou,Shree K. Nayar +1 more
TL;DR: In this article, the authors present a comprehensive framework for evaluating an aperture pattern based on the quality of deblurring, which explicitly accounts for the effects of image noise and the statistics of natural images.
Proceedings ArticleDOI
Coded aperture pairs for depth from defocus
TL;DR: It is shown in this paper that the use of a circular aperture severely restricts the accuracy of depth from defocus, and a criterion for evaluating a pair of apertures with respect to the precision of depth recovery is derived.
Journal ArticleDOI
Coded Aperture Pairs for Depth from Defocus and Defocus Deblurring
TL;DR: A criterion for evaluating a pair of apertures with respect to the precision of depth recovery is derived and these two coded aperture are found to complement each other in the scene frequencies they preserve.