NDLI: Robust Content-Dependent Photometric Projector Compensation

Content Provider	IEEE Xplore Digital Library
Author	Ashdown, M. Okabe, T. Sato, I. Sato, Y.
Copyright Year	2006
Description	Author affiliation: University of Tokyo, Japan (Ashdown, M.)
Abstract	We wish to compensate for irregularities in the output of digital projectors that occur when they are used in non-ideal situations, such as those with varying surface reflectance and ambient light. We transform the image to be displayed into a compensation image that will produce the desired appearance. In contrast to previous methods, the transformation is based on both a radiometric model of the system and the content of the image. We present a five-stage framework for performing content-dependent photometric compensation, and the details of a specific implementation. The original image is converted to a perceptually-uniform space, the desired chrominance is fitted to the gamut of the projector, a luminance range is calculated within which the fitted chrominance values can be produced, the original luminance is fitted to that range, and finally the fitted values are converted to a compensation image. Our method balances strict compensation against dynamic range in the final output, so we can produce a good result even when removal of all visible spatial variation is not possible.
Starting Page	6
Ending Page	6
File Size	1700295
Page Count	1
File Format	PDF
ISBN	0769526462
DOI	10.1109/CVPRW.2006.172
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reflectivity Image converters Computational modeling Image generation Dynamic range Radiometry Robustness Calibration Informatics Photometry
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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