Point target enhancement based on temporal-spatial over-sampling and image filtering

Ting Jin; Humei Wang; Xiaomeng Dong; Shitao Wang

doi:10.1117/12.2073155

24 November 2014 Point target enhancement based on temporal-spatial over-sampling and image filtering

Ting Jin, Humei Wang, Xiaomeng Dong, Shitao Wang

Proceedings Volume 9301, International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition; 930138 (2014) https://doi.org/10.1117/12.2073155
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

A method for point target enhancement based on temporal-spatial over-sampling and adaptive filtering is proposed in this paper. First of all, an over-sampling scanning imaging system is designed for target imaging enhancement. Two separate detector arrays are offset to each other by a half detector in the cross-scan direction and the sampling frequency in the in-scan direction is increased. A sub-pixel image of point target is obtained by interlace-combined two frame image from the two detector arrays. Secondly, image filtering is used to enhance the target embedded in clutter background. Clutter background suppression, local enhancement and contrast extension are performed. Experimental results show that the method presented in this paper can enhance the point target effectively in scanning detection system.

Citation Download Citation

Ting Jin, Humei Wang, Xiaomeng Dong, and Shitao Wang "Point target enhancement based on temporal-spatial over-sampling and image filtering", Proc. SPIE 9301, International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition, 930138 (24 November 2014); https://doi.org/10.1117/12.2073155

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KEYWORDS

Image filtering

Image enhancement

Digital filtering

Image processing

Detector arrays

Target detection

Imaging systems

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