High-throughput median filter for high-performance infrared imaging system

Xu Qin; Yong Ma; Hai Li; Jun-feng Bo

doi:10.1117/12.899498

8 September 2011 High-throughput median filter for high-performance infrared imaging system

Xu Qin, Yong Ma, Hai Li, Jun-feng Bo

Proceedings Volume 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications; 81930Z (2011) https://doi.org/10.1117/12.899498
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Many high-performance infrared imaging systems have been designed in recent years. This poses real-time challenges to existing infrared image processing methods. Median filter is a nonlinear filtering technology widely used in infrared imaging system to smooth image and correct missing pixels. Traditional median filter implementation is time-consuming with long sorting cycle, which cannot meet the real-time processing requirement of high-performance infrared imaging system. In this paper we present a new architecture for median filter. The proposed architecture optimizes the comparators with pipeline design in order to enhance the processing velocity of sorting. Experimental evaluation and comparisons show high efficiency of our design.

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Xu Qin, Yong Ma, Hai Li, and Jun-feng Bo "High-throughput median filter for high-performance infrared imaging system", Proc. SPIE 8193, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, 81930Z (8 September 2011); https://doi.org/10.1117/12.899498

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KEYWORDS

Digital filtering

Image filtering

Infrared imaging

Filtering (signal processing)

Imaging systems

Optical filters

Nonlinear filtering

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