利用激光主动探测技术实现光电窥视设备检测

杨名宇

doi:10.3788/CO.20150802.0255

Volume 8 Issue 2

Apr. 2015

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Article Contents

Chinese Optics > 2015 > 8(2): 255-262.

YANG Ming-yu. Detecting of photoelectric peeping devices based on active laser detection[J]. Chinese Optics, 2015, 8(2): 255-262. doi: 10.3788/CO.20150802.0255

Citation:

YANG Ming-yu. Detecting of photoelectric peeping devices based on active laser detection[J]. Chinese Optics, 2015, 8(2): 255-262. doi: 10.3788/CO.20150802.0255

YANG Ming-yu. Detecting of photoelectric peeping devices based on active laser detection[J]. Chinese Optics, 2015, 8(2): 255-262. doi: 10.3788/CO.20150802.0255

Citation:

YANG Ming-yu. Detecting of photoelectric peeping devices based on active laser detection[J]. Chinese Optics, 2015, 8(2): 255-262. doi: 10.3788/CO.20150802.0255

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Detecting of photoelectric peeping devices based on active laser detection

doi: 10.3788/CO.20150802.0255

YANG Ming-yu^,

Key Laboratory of Airborne Optical Imaging and Measurement,Changchun Institute of Optics, Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China

Received Date: 15 Dec 2014
Accepted Date: 14 Feb 2015
Publish Date: 25 Apr 2015

Abstract

Abstract

Based on the cat-eye effect of photoelectric devices, this paper establishes a system of active laser detection with CCD, and puts forward an effective algorithm for detecting peeping devices. The proposed algorithm acquires one image when the laser power is on, and the other image when the laser power is off in the laser pulse interval. According to the echo intensity difference on the peeping devices and usual objects, the target is detected by using the background difference method. The experimental results show that, within a radius of 5 m, the system can effectively and quickly detect peeping devices from background, and is not influenced by the scene and light. Through the experiments on 20 different scenes, the correct detection rate is 95%, and the detection time of each frame is in the range of 0.015-0.021 s, meeting the demand of real-time detection, which validate the correctness and effectiveness of this system.
- laser active detection,
- cat-eye effect,
- background difference method

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References(15)

References

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