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Proceedings Paper

Adaptable infrared image processing module implemented in FPGA
Author(s): Grzegorz Bieszczad; Tomasz Sosnowski; Henryk Madura; Mariusz Kastek; Jaroslaw Barela
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Paper Abstract

Rapid development of infrared detector arrays caused a need to develop robust signal processing chain able to perform operations on infrared image in real-time. Every infrared detector array suffers from so-called nonuniformity, which has to be digitally compensated by the internal circuits of the camera. Digital circuit also has to detect and replace signal from damaged detectors. At the end the image has to be prepared for display on external display unit. For the best comfort of viewing the delay between registering the infrared image and displaying it should be as short as possible. That is why the image processing has to be done with minimum latency. This demand enforces to use special processing techniques like pipelining and parallel processing. Designed infrared processing module is able to perform standard operations on infrared image with very low latency. Additionally modular design and defined data bus allows easy expansion of the signal processing chain. Presented image processing module was used in two camera designs based on uncooled microbolometric detector array form ULIS and cooled photon detector from Sofradir. The image processing module was implemented in FPGA structure and worked with external ARM processor for control and coprocessing. The paper describes the design of the processing unit, results of image processing, and parameters of module like power consumption and hardware utilization.

Paper Details

Date Published: 3 May 2010
PDF: 10 pages
Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76603Z (3 May 2010); doi: 10.1117/12.851146
Show Author Affiliations
Grzegorz Bieszczad, Military Univ. of Technology (Poland)
Tomasz Sosnowski, Military Univ. of Technology (Poland)
Henryk Madura, Military Univ. of Technology (Poland)
Mariusz Kastek, Military Univ. of Technology (Poland)
Jaroslaw Barela, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 7660:
Infrared Technology and Applications XXXVI
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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