NDLI: Modeling of the widefield space variant security systems

Content Provider	IEEE Xplore Digital Library
Author	Rerabek, M. Pata, P.
Copyright Year	2008
Description	Author affiliation: FEE, CTU in Prague, Prague (Rerabek, M.; Pata, P.)
Abstract	The most important methods for security image data processing contain person recognition, suspicious events detection, objects and area of interest analysis and their classification, MSE, SNR and subjective evaluation. Image data processing of UWFC (ultra wide field cameras) security systems is very difficult in general. Precision of image data post-processing and analyses, which is very important for these systems, decreases because of a lot of different kinds of optical aberrations and distortions. Influence of optical aberrations increases at most at the frontiers of field of view (high angular distance from optical axis of the system). These aberrations distort the PSF of optical system and rapidly cut the accuracy of measurements. The third order optical aberrations models for LSI and LSV systems have been described. These models are based on Seidel and Zernike approximating polynomials. Optical aberrations effect to the transfer function (PSF) of optical imaging systems has been described. Higher quality and precision of image data can be obtained with deconvolution of the acquired images and system point spread function. The point spread function can be modeled as a space variant function from the estimation of optical system wavefront aberrations.
Starting Page	121
Ending Page	125
File Size	1333699
Page Count	5
File Format	PDF
ISBN	9781424418169
DOI	10.1109/CCST.2008.4751289
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-13
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical distortion Adaptive optics Data security Data processing Image analysis Image recognition Event detection Cameras Data analysis Distortion measurement Deconvolution Optical aberrations Zernike polynomials PSF Image processing
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
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

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