Share Email Print

Proceedings Paper

A novel method for camera calibration and image alignment of a thermal/visible image fusion system
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

This paper presents a novel method for camera calibration and image alignment of an image fusion system that consists of a thermal and a color camera. The calibration board that consists of a heated metal and an acrylic plate with asymmetric circle grid pattern was developed. The board was used to calibrate intrinsic parameters of the thermal camera and also used to find the homography to align images of the two cameras. The aligned images have been fine adjusted for their misalignment due to difference in projection centers by region of interest (ROI) setting. The visible camera was calibrated separately by using a typical calibration board with an asymmetric circle grid printed paper. The evaluation was performed in two scenarios. The first one is an indoor static scene. And the second one is an outdoor dynamic scene that is a vehicle tracking application by using CAMShift algorithm. The results validate the proposed method with high accuracy.

Paper Details

Date Published: 11 March 2020
PDF: 7 pages
Proc. SPIE 11331, Fourth International Conference on Photonics Solutions (ICPS2019), 113310H (11 March 2020); doi: 10.1117/12.2553042
Show Author Affiliations
P. Bamrungthai, Kasetsart Univ. (Thailand)
P. Wongkamchang, Navaminda Kasatriyadhiraj Royal Air Force Academy (Thailand)

Published in SPIE Proceedings Vol. 11331:
Fourth International Conference on Photonics Solutions (ICPS2019)
Tetsuya Kawanishi; Surachet Kanprachar; Waranont Anukool; Ukrit Mankong, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?