Modeling and Synthesis of Aperture Effects in Cameras
| dc.contributor.author | Lanman, Douglas | en_US |
| dc.contributor.author | Raskar, Ramesh | en_US |
| dc.contributor.author | Taubin, Gabriel | en_US |
| dc.contributor.editor | Douglas W. Cunningham and Victoria Interrante and Paul Brown and Jon McCormack | en_US |
| dc.date.accessioned | 2013-10-22T07:38:41Z | |
| dc.date.available | 2013-10-22T07:38:41Z | |
| dc.date.issued | 2008 | en_US |
| dc.description.abstract | In this paper we describe the capture, analysis, and synthesis of optical vignetting in conventional cameras. We analyze the spatially-varying point spread function (PSF) to accurately model the vignetting for any given focus or aperture setting. In contrast to existing "flat-field" calibration procedures, we propose a simple calibration pattern consisting of a two-dimensional array of point light sources - allowing simultaneous estimation of vignetting correction tables and spatially-varying blur kernels. We demonstrate the accuracy of our model by deblurring images with focus and aperture settings not sampled during calibration. We also introduce the Bokeh Brush: a novel, post-capture method for full-resolution control of the shape of out-of-focus points. This effect is achieved by collecting a small set of images with varying basis aperture shapes. We demonstrate the effectiveness of this approach for a variety of scenes and aperture sets. | en_US |
| dc.description.seriesinformation | Computational Aesthetics in Graphics, Visualization, and Imaging | en_US |
| dc.identifier.isbn | 978-3-905674-08-8 | en_US |
| dc.identifier.issn | 1816-0859 | en_US |
| dc.identifier.uri | https://doi.org/10.2312/COMPAESTH/COMPAESTH08/081-088 | en_US |
| dc.publisher | The Eurographics Association | en_US |
| dc.subject | Categories and Subject Descriptors (according to ACM CCS): I.3.8 [Computer Graphics]: Applications | en_US |
| dc.title | Modeling and Synthesis of Aperture Effects in Cameras | en_US |
Files
Original bundle
1 - 1 of 1