Underwater Structured Light Stripe Center Extraction with Normalized Grayscale Gravity Method

doi:10.3390/s23249839

	Underwater Structured Light Stripe Center Extraction with Normalized Grayscale Gravity Method
	Li, Shuaishuai 1,2; Gao, Xiang 3; Xie, Zexiao 1,2
发表期刊	SENSORS
	2023-12-01
卷号	23 期号:24 页码:18
通讯作者	Xie, Zexiao(xiezexiao@ouc.edu.cn)
摘要	The non-uniform reflectance characteristics of object surfaces and underwater environment disturbances during underwater laser measurements can have a great impact on laser stripe center extraction. Therefore, we propose a normalized grayscale gravity method to address this problem. First, we build an underwater structured light dataset for different illuminations, turbidity levels, and reflective surfaces of the underwater object and compare several state-of-the-art semantic segmentation models, including Deeplabv3, Deeplabv3plus, MobilenetV3, Pspnet, and FCNnet. Based on our comparison, we recommend PSPnet for the specific task of underwater structured light stripe segmentation. Second, in order to accurately extract the centerline of the extracted light stripe, the gray level values are normalized to eliminate the influence of noise and light stripe edge information on the centroids, and the weights of the cross-sectional extremes are increased to increase the function convergence for better robustness. Finally, the subpixel-structured light center points of the image are obtained by bilinear interpolation to improve the image resolution and extraction accuracy. The experimental results show that the proposed method can effectively eliminate noise interference while exhibiting good robustness and self-adaptability.
关键词	light stripe center extraction underwater measurement underwater semantic segmentation normalized grayscale gravity method
DOI	10.3390/s23249839
关键词[WOS]	EDGE
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:001136261700001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/54887
专题	中科院工业视觉智能装备工程实验室
通讯作者	Xie, Zexiao
作者单位	1.Ocean Univ China, Coll Engn, Qingdao 266100, Peoples R China 2.Key Lab Ocean Engn Shandong Prov, Qingdao 266100, Peoples R China 3.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Shuaishuai,Gao, Xiang,Xie, Zexiao. Underwater Structured Light Stripe Center Extraction with Normalized Grayscale Gravity Method[J]. SENSORS,2023,23(24):18.
APA	Li, Shuaishuai,Gao, Xiang,&Xie, Zexiao.(2023).Underwater Structured Light Stripe Center Extraction with Normalized Grayscale Gravity Method.SENSORS,23(24),18.
MLA	Li, Shuaishuai,et al."Underwater Structured Light Stripe Center Extraction with Normalized Grayscale Gravity Method".SENSORS 23.24(2023):18.