NDLI: Active photometric stereo

Content Provider	IEEE Xplore Digital Library
Author	Clark, J.J.
Copyright Year	1992
Description	Author affiliation: Div. of Appl. Sci., Harvard Univ., Cambridge, MA, USA (Clark, J.J.)
Abstract	An active vision technique for determining the absolute depth of surfaces is described. The algorithm assumes a very general model for the reflectance properties of the surface, and is valid for most of the shading models commonly used in computer vision work. The algorithm relies on the controlled motion of a point light source, which is not at infinity but relatively close to the surface and to the camera. The sensitivity of the computed depth values to errors in the measured quantities is derived, allowing a confidence measure for the depth to be determined. The confidence measure can aid in the estimation of accurate depth values from multiple image measurements taken over time. A method based on robust estimation that permits an unbiased estimate of the depth values to be obtained is presented. The results of experiments on synthetic and real-world imagery are reported, illustrating the efficacy of the active photometric stereo algorithm.<>
Starting Page	29
Ending Page	34
File Size	615657
Page Count	6
File Format	PDF
ISBN	0818628553
ISSN	10636919
DOI	10.1109/CVPR.1992.223231
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-06-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photometry Stereo vision Time measurement Reflectivity Computer vision Motion control Lighting control Light sources H infinity control Cameras
Content Type	Text
Resource Type	Article
Subject	Computer Vision and Pattern Recognition Software

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
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

An integral formulation for differential photometric stereo

Photometric stereo under perspective projection

On optimal light configurations in photometric stereo

Photometric stereo under blurred observations

Coplanar light sweep-surface supported uncalibrated photometric stereo

Using a Raster Display for Photometric Stereo

Toward a stratification of Helmholtz stereopsis

Calculation of surface position and orientation using the photometric stereo method

Light Fall-off Stereo

Active photometric stereo

Similar Documents

An integral formulation for differential photometric stereo

Photometric stereo under perspective projection

On optimal light configurations in photometric stereo

Photometric stereo under blurred observations

Coplanar light sweep-surface supported uncalibrated photometric stereo

Using a Raster Display for Photometric Stereo

Toward a stratification of Helmholtz stereopsis

Calculation of surface position and orientation using the photometric stereo method

Light Fall-off Stereo

Active photometric stereo