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Volume 43 Issue 5
May  2021
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SUN Shaowei, YANG Yuetao, YANG Bingwei, WAN Anjun, ZHONG Hailin. Research and Implementation of Infrared Lens Auto-focus Technology Based on Field Programmable Gate Array[J]. Infrared Technology , 2021, 43(5): 464-472.
Citation: SUN Shaowei, YANG Yuetao, YANG Bingwei, WAN Anjun, ZHONG Hailin. Research and Implementation of Infrared Lens Auto-focus Technology Based on Field Programmable Gate Array[J]. Infrared Technology , 2021, 43(5): 464-472.
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Research and Implementation of Infrared Lens Auto-focus Technology Based on Field Programmable Gate Array

  • AVIC Suzhou Changfeng Avionics Co., Ltd., Suzhou 215001, China

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  • Received Date: November 06, 2020
  • Revised Date: March 23, 2021
    Graphical Abstract
    • Abstract
  • Autofocus technology plays an important role in the field of infrared thermal imager monitoring. At present, there exist some problems with infrared auto focusing technology, such as low success rate, complex architecture and low focusing speed. Therefore, this study proposes an auto focusing technology of infrared lens based on FPGA, which realizes the functions of infrared image processing, display, and auto focusing with a single FPGA. In view of the common characteristics of vertical stripe noise and random noise in infrared images, this study improves and optimizes the infrared definition evaluation algorithm and mountain climbing algorithm in the focusing process. The experimental results show that the algorithm and implementation method proposed in this study can help infocusing on the infrared lens remarkably. Meanwhile, the proposed method has characteristics such as high integration, fast focusing speed, and high success rate, and thus has wide application prospects.
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    • References (8)
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