NDLI: Photometric stereo via locality sensitive high-dimension hashing

Content Provider	IEEE Xplore Digital Library
Author	Lin Zhong Little, J.J.
Copyright Year	2005
Description	Author affiliation: Dept. of Comput. Sci., British Columbia Univ., Canada (Lin Zhong; Little, J.J.)
Abstract	In this paper, we extend the new photometric stereo method of Hertzmenn and Seitz that uses many images of an object together with a calibration object. For each point in the registered collection of images, we have a large number of brightness values. Photometric stereo finds a similar collection of brightness values from the calibration object and overdetermines the surface normal. With a large number of images, finding similar brightnesses becomes costly search in high dimensions. To speed up the search, we apply locality sensitive high dimensional hashing (LSH) to compute the irregular target object's surface orientation. The experimental results of a simplified photometric stereo experiment show consistent results in surface orientation. LSH can be implemented very efficiently and offers the possibility of practical photometric stereo computation with a large number of images.
Starting Page	104
Ending Page	111
File Size	910917
Page Count	8
File Format	PDF
ISBN	0769523196
DOI	10.1109/CRV.2005.61
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-09
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reflectivity Computer vision Image databases Shape Brightness Calibration Stereo vision Table lookup Photometry Equations
Content Type	Text
Resource Type	Article

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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
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