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The design of a portable fusion system of an uncooled infrared bolometer and a CCD camera
Author(s): Rongguo Fu; Zhenwei Du; Ming Zhou; Jiangnan Chen; Hong Zhang; Miao He; Tongchun Sun; Wenran Yang; Hao Zhang
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Paper Abstract

A portable device of image fusion system of infrared and visible light image is designed. The device is composed of image collecting, process and display part. Image collecting part includes an uncooled infrared bolometer and a CCD camera. The response wavelength of uncooled infrared bolometer is 8-14μm and that of CCD is 0.2~1.1μm. Image process part is a complex structure composed of DSP642, TVP5150, SAA7121H, SDRAM storage and other electronic components, while displaying part is computer or LCD. The focus length of uncooled infrared bolometer is 50mm and that of CCD is 8~50mm to match bolometer. The optical axises of them are rectified to parallel carefully. A multi-dimensional mechanical structure is designed specially to fit for the uncooled infrared bolometer and CCD camera, so as to modify the parallel of axises. The rectifying is carried under an optical system of 3 meter focus length, the resolution angle is 0.05mrad. Images of bolometer and CCD are decoded in the input circuit of TVP5150 and form the digital signal of BT.656, then the decoded videos are transferred to DSP642 circuit. Here the images of bolometer and CCD are fused under the weighted average algorithm, the output image is encoded to PAL format in order to keep the real time response, the complex fusing algorithm such as Laplace pyramid or wavelet isn’t implanted in the DSP642 at present. Theoretically the fused image includes more information than single infrared or CCD image, in order to verify the fusing result, a group of experiments are carried to detect man behind bush. By comparing three images of infrared, visible, fusing images, a primary conclusion is obtained that the weight coefficient will influence the fusing effect in different circumstances.

Paper Details

Date Published: 7 May 2019
PDF: 9 pages
Proc. SPIE 11018, Signal Processing, Sensor/Information Fusion, and Target Recognition XXVIII, 110181G (7 May 2019); doi: 10.1117/12.2518355
Show Author Affiliations
Rongguo Fu, Nanjing Univ. of Science and Technology (China)
Zhenwei Du, Nanjing Univ. of Science and Technology (China)
Ming Zhou, Nanjing Univ. of Science and Technology (China)
Jiangnan Chen, Nanjing Univ. of Science and Technology (China)
Hong Zhang, Nanjing Univ. of Science and Technology (China)
Miao He, Nanjing Univ. of Science and Technology (China)
Tongchun Sun, ShuGuang Photoelectronic Corp. of Yangzhou (China)
Wenran Yang, ShuGuang Photoelectronic Corp. of Yangzhou (China)
Hao Zhang, ShuGuang Photoelectronic Corp. of Yangzhou (China)


Published in SPIE Proceedings Vol. 11018:
Signal Processing, Sensor/Information Fusion, and Target Recognition XXVIII
Ivan Kadar; Erik P. Blasch; Lynne L. Grewe, Editor(s)

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