Design of multiple demeaning filters for small target detection in infrared imageries

Won-Chul Choi; Ayoung Heo; Jai-Hoon Lee; Dong-Jo Park

doi:10.1117/12.883869

20 May 2011 Design of multiple demeaning filters for small target detection in infrared imageries

Won-Chul Choi, Ayoung Heo, Jai-Hoon Lee, Dong-Jo Park

Proceedings Volume 8012, Infrared Technology and Applications XXXVII; 80120K (2011) https://doi.org/10.1117/12.883869
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

In this paper, we propose multiple demeaning filters for small target detection in infrared (IR) images. The use of a demeaning filter is a promising method which detects a small object by removing the background components with a mean filter. The main factors in the design of a demeaning filter are two types of demeaning methods and the size of its window. We compare two demeaning methods, the sliding window method and the grid method, and we analyze the trade-off between the window size and the performance of the demeaning filters and present limitations related to their use. To overcome the drawbacks of a conventional demeaning filter, the use of multiple demeaning filters with filters of various sizes is considered. The proposed method not only has the advantage of being able to detect a small object in a densely cluttered environment, but it also can be used with low complexity with an integral image. Experimental results demonstrate the robustness and stability of the proposed multiple demeaning filters with low computational complexity compared with conventional methods.

Citation Download Citation

Won-Chul Choi, Ayoung Heo, Jai-Hoon Lee, and Dong-Jo Park "Design of multiple demeaning filters for small target detection in infrared imageries", Proc. SPIE 8012, Infrared Technology and Applications XXXVII, 80120K (20 May 2011); https://doi.org/10.1117/12.883869

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KEYWORDS

Optical filters

Infrared imaging

Target detection

Image filtering

Infrared detectors

Infrared radiation

Thermography

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