An embedded system for short wave infrared image enhancement and 3G-SDI display

Xin Zhang; Hui Liu; Xiangwei Li

doi:10.1117/12.2644212

9 September 2022 An embedded system for short wave infrared image enhancement and 3G-SDI display

Xin Zhang, Hui Liu, Xiangwei Li

Proceedings Volume 12328, Second International Conference on Optics and Image Processing (ICOIP 2022); 123281L (2022) https://doi.org/10.1117/12.2644212
Event: Second International Conference on Optics and Image Processing (ICOIP 2022), 2022, Taian, China

Abstract

According to the actual requirements of real-time target tracking processing and display of short wave infrared camera with CameraLink interface, an embedded image processing system based on FPGA is designed. The LVDS and GTX ports of FPGA are used to realize CameraLink interface and 3G-SDI interface, it not only improves the integration of the system, but also saves the cost. The adaptive dual platform histogram equalization algorithm is adopted and implemented, which effectively improves the display effect and subsequent processing quality of short wave infrared image. The paper briefly analyzes the algorithm principle of adaptive dual platform histogram, puts forward the adaptive calculation method of dual platform value, studies the implementation method of the algorithm based on Xilinx's FPGA, and gives the solutions of key modules such as adaptive dual platform histogram equalization, image enlarge and 3G-SDI display in FPGA. The experimental results show that the designed embedded image processing system gives consideration to real-time and effectiveness, and realizes the functions of image amplification and high-definition display; The algorithm can calculate and adjust the upper and lower platform values of the histogram in real time according to the scene within 400 μs, effectively enhance the contrast of the image and suppress the background noise. The system has the advantages of strong algorithm adaptability, simple implementation, high integration and low power consumption. It can also be effectively applied to the image acquisition, processing and display of medium wave and long wave infrared cameras.

Citation Download Citation

Xin Zhang, Hui Liu, and Xiangwei Li "An embedded system for short wave infrared image enhancement and 3G-SDI display", Proc. SPIE 12328, Second International Conference on Optics and Image Processing (ICOIP 2022), 123281L (9 September 2022); https://doi.org/10.1117/12.2644212

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KEYWORDS

Field programmable gate arrays

Image processing

Infrared cameras

Image enhancement

Embedded systems

Infrared imaging

Infrared radiation

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