Laser & Optoelectronics Progress, Volume. 58, Issue 12, 1212002(2021)

Laser Dazzler with Automatic Focal Length Adjustment for Pedestrians

Hongsheng Cui and Tao Jiang*
Author Affiliations
  • School of Automation, University of Science and Technology Beijing, Beijing 100083, China
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    Police laser blinding devices are primarily used in the field of security. A human target will lose vision temporarily when exposed to the green laser emitted by the device because the human eye is sensitive to the 532-nm green laser. The laser light must cover the target human body as much as possible to improve utilization of the laser. This subject obtains video from the camera and detects pedestrian targets through a video processing system based on digital signal processing (DSP) using the Gentle Adaboost algorithm. The detection results include the size and location of the pedestrian targets. According to the size of the pedestrian, a single chip microcomputer control circuit controls the laser lens to focus on pedestrian targets automatically to accommodate pedestrian targets.

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    Hongsheng Cui, Tao Jiang. Laser Dazzler with Automatic Focal Length Adjustment for Pedestrians[J]. Laser & Optoelectronics Progress, 2021, 58(12): 1212002

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Sep. 16, 2020

    Accepted: Oct. 14, 2020

    Published Online: Jun. 22, 2021

    The Author Email: Jiang Tao (niu2008a@126.com)

    DOI:10.3788/LOP202158.1212002

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