NDLI: A Mask-Based Approach for the Geometric Calibration of Thermal-Infrared Cameras

Content Provider	IEEE Xplore Digital Library
Author	Vidas, S. Lakemond, R. Denman, S. Fookes, C. Sridharan, S. Wark, T.
Copyright Year	1963
Abstract	Accurate and efficient thermal-infrared (IR) camera calibration is important for advancing computer vision research within the thermal modality. This paper presents an approach for geometrically calibrating individual and multiple cameras in both the thermal and visible modalities. The proposed technique can be used to correct for lens distortion and to simultaneously reference both visible and thermal-IR cameras to a single coordinate frame. The most popular existing approach for the geometric calibration of thermal cameras uses a printed chessboard heated by a flood lamp and is comparatively inaccurate and difficult to execute. Additionally, software toolkits provided for calibration either are unsuitable for this task or require substantial manual intervention. A new geometric mask with high thermal contrast and not requiring a flood lamp is presented as an alternative calibration pattern. Calibration points on the pattern are then accurately located using a clustering-based algorithm which utilizes the maximally stable extremal region detector. This algorithm is integrated into an automatic end-to-end system for calibrating single or multiple cameras. The evaluation shows that using the proposed mask achieves a mean reprojection error up to 78% lower than that using a heated chessboard. The effectiveness of the approach is further demonstrated by using it to calibrate two multiple-camera multiple-modality setups. Source code and binaries for the developed software are provided on the project Web site.
Sponsorship	IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc
Starting Page	1625
Ending Page	1635
Page Count	11
File Size	1164708
File Format	PDF
ISSN	00189456
Volume Number	61
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Calibration Cameras Feature extraction Heating Lenses Computer vision Clustering algorithms IR imaging cameras geometry infrared (IR) image sensors
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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

Thermal Stereo Odometry for UAVs

Geometric Calibration of IR Camera Using Trinocular Vision

Lens distortion correction for thermal cameras to improve aerial imaging with small-scale UAVs

Facial Feature Extraction in an Infrared Image by Proxy With a Visible Face Image

An EM-CI based approach to fusion of IR and visual images

Geometric camera calibration: a comparisons of methods

Camera Calibration of Thermal-Infrared Stereo Vision System

Distributed Computer Vision Algorithms

Detection of Gaseous Plumes in IR Hyperspectral Images—Performance Analysis

A Mask-Based Approach for the Geometric Calibration of Thermal-Infrared Cameras

Similar Documents

Thermal Stereo Odometry for UAVs

Geometric Calibration of IR Camera Using Trinocular Vision

Lens distortion correction for thermal cameras to improve aerial imaging with small-scale UAVs

Facial Feature Extraction in an Infrared Image by Proxy With a Visible Face Image

An EM-CI based approach to fusion of IR and visual images

Geometric camera calibration: a comparisons of methods

Camera Calibration of Thermal-Infrared Stereo Vision System

Distributed Computer Vision Algorithms

Detection of Gaseous Plumes in IR Hyperspectral Images—Performance Analysis

A Mask-Based Approach for the Geometric Calibration of Thermal-Infrared Cameras