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Title:High Dynamic Range and Omnifocus Imaging
Author(s):Aggarwal, Manoj
Doctoral Committee Chair(s):Ahuja, Narendra
Department / Program:Electrical Engineering
Discipline:Electrical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Engineering, Electronics and Electrical
Abstract:This thesis also develops a new imaging model, which is more accurate than the conventional models (pinhole, thin-lens and Gaussian thick-lens). Our investigation of the standard models shows that the models make two implicit assumptions: first, that the aperture is coincident with the first principal plane, and second, that a point light source uniformly illuminates the aperture. Both of these conflict with the design of many available lenses. We show that this modeling error has serious consequences. We propose a new imaging model that takes into account the actual position of the aperture. We also study the impact of the second assumption about the uniform distribution of light across the aperture on photometric mapping. It shows the impact is quite significant and adds to those of more familiar cosine-fourth and vignetting effects.
Issue Date:2001
Type:Text
Language:English
Description:174 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001.
URI:http://hdl.handle.net/2142/80701
Other Identifier(s):(MiAaPQ)AAI3017010
Date Available in IDEALS:2015-09-25
Date Deposited:2001


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