Structure optimization of heterogeneous compound eye camera for improving the detection performance

doi:10.1364/OE.506718

CIOMP OpenIR

	Structure optimization of heterogeneous compound eye camera for improving the detection performance
	Q. Wu, H. Zhang, T. Wang, J. Huang, W. Xu and C. Shi
	2023
发表期刊	Optics Express
ISSN	10944087
卷号	31 期号:25 页码:42176-42190
摘要	To achieve fast location, precise tracking and accurate identification over a large field of view (FOV), we have proposed a heterogeneous compound eye camera (HeCECam), which consists of a heterogeneous compound eye array, an optical relay system and a CMOS detector. However, the current HeCECam can hardly acquire high-precision 3D information of the targets to realize these applications. To solve this challenge, we propose a scheme on optimizing the structure of the HeCECam to improving the detection performance, including the optimization of the distribution uniformity of the sub-eyes with the proposed "Three-direction center-of-gravity subdivision (TGS)" and the enhancement of the compatibility between heterogeneous compound eyes and the optical relay system with the proposed compensation method for tilt. The TGS significantly reduces the distribution unevenness of sub-eyes down to 117% from the previous 152%, and provides symmetry to the heterogeneous compound eye array. The tilt compensation effectively addresses previous imaging defects, such as distortion of sub-images, increased stray light, and support structures being imaged, and it improves the imaging clarity of the system, especially in external FOV. Based on two proposed methods, we re-design and fabricate the heterogeneous compound eye array to obtain a high-performance prototype. To verify the imaging capacities of the optimized HeCECam, a series of comparison experiments are performed, including blank scene imaging, FOV tests, resolution verification and real-world scene imaging. The results show that the previous imaging defects have been well eliminated, and the optimized prototype has stronger resolving power and wider FOV. This allow the HeCECam to perform better in subsequent practical applications, such as wide-area surveillance, forewarning, and navigation. © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
DOI	10.1364/OE.506718
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68030
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Q. Wu, H. Zhang, T. Wang, J. Huang, W. Xu and C. Shi. Structure optimization of heterogeneous compound eye camera for improving the detection performance[J]. Optics Express,2023,31(25):42176-42190.
APA	Q. Wu, H. Zhang, T. Wang, J. Huang, W. Xu and C. Shi.(2023).Structure optimization of heterogeneous compound eye camera for improving the detection performance.Optics Express,31(25),42176-42190.
MLA	Q. Wu, H. Zhang, T. Wang, J. Huang, W. Xu and C. Shi."Structure optimization of heterogeneous compound eye camera for improving the detection performance".Optics Express 31.25(2023):42176-42190.

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