Research Progress on Laser Active Detection Technology Based on Cat's Eye Effect (Invited)

Kuo Zhang; Zhe Lü; Fei Chen; Jiamin Wang; Weiwei Li; Yong Chen; Xiaopeng Ding

doi:10.3788/LOP241600

Laser & Optoelectronics Progress, Volume. 61, Issue 20, 2011016(2024)

Research Progress on Laser Active Detection Technology Based on Cat's Eye Effect (Invited)

Kuo Zhang^1、*, Zhe Lü^1,2, Fei Chen¹, Jiamin Wang¹, Weiwei Li^1,2, Yong Chen^1,2, and Xiaopeng Ding^1,2

¹Department of Optoelectronic Countermeasures, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033, Jilin , China

²University of Chinese Academy of Sciences, Beijing 100049, China

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Fig. 1. Schematic of the cat's eye effect of the optical target

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Fig. 2. Reflection model of the cat's eye effect

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Fig. 3. Equivalent reflection model diagram of the oblique incident detection beam on the cat's eye target

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Fig. 4. Equivalent reflection model diagram of the cat's eye target after rotating coordinates

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Fig. 5. Schematic of oblique beam propagation through the cat's eye system

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$Projection merging of two diffractive apertures$

Fig. 6. Projection merging of two diffractive apertures

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Table 1. Comparison of cat's eye target echo image processing algorithms

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Table 1. Comparison of cat's eye target echo image processing algorithms

Processing algorithm	Technical principle	Specificity	Advantage	Disadvantage
Roundness and eccentricity	Utilizing the characteristics of cat’s eye reflection points to distinguish and identify cat’s eye targets	Gradient Characterization of Cat’s Eye Echo Spots	Under the condition of low contrast， it can realize the detection and recognition of cat’s eye photoelectric equipment	Poor detection capability for high-speed moving targets
SFDC	Recognition of cat’s eye targets using the distribution of gray value changes in the echo image and the modulation frequency of the pulsed laser	Beam frequency modulation information for laser active illumination of catadioptric targets	The dual-criterion method is more scientifically accurate than the single-criterion method in recognizing cat’s eye targets from dynamic backgrounds	Poor real-time detection capability
SPCS	Removing dynamic background and transforming traditional target recognition into measurement vector processing	Cat’s eye effect target information as a sparse signal reconstructed with compressed perception theory	Low data storage and fast runtime for dynamic background detection	Higher error rate when recognizing kitty eye targets
MSPF	Recognition detection by suppressing the background and enhancing the target	Combines traditional cat’s eye target recognition and selective features of visual attention	Has a high recognition rate and low false recognition rate	Not suitable for detecting moving targets

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Kuo Zhang, Zhe Lü, Fei Chen, Jiamin Wang, Weiwei Li, Yong Chen, Xiaopeng Ding. Research Progress on Laser Active Detection Technology Based on Cat's Eye Effect (Invited)[J]. Laser & Optoelectronics Progress, 2024, 61(20): 2011016

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Paper Information

Category: Imaging Systems

Received: Jul. 1, 2024

Accepted: Aug. 27, 2024

Published Online: Nov. 7, 2024

The Author Email:

DOI:10.3788/LOP241600

CSTR:32186.14.LOP241600

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology