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Article
Engineering, Electrical & Electronic
Weiming Li et al.
Summary: Intelligent manufacturing technology has seen rapid development, with robot welding systems playing a crucial role. Laser profile sensors are commonly used, but they struggle to detect narrow weld joint positions due to the deformation of the laser stripe. This study proposes a wide range of weld joint recognition algorithms based on the laser profile sensor, offering solutions for narrow weld joint identification and improving the robustness of recognizing conventional weld joints.
IEEE SENSORS JOURNAL
(2023)
Article
Optics
Mingzhu Wan et al.
Summary: In this paper, a single-shot high dynamic range 3D measurement method combining FPP with deep learning is proposed. The method solves the overexposure problem in highly reflective areas by using a self-attention mechanism and improves measurement accuracy by predicting wrapped phase maps and absolute phase maps. Experiments showed that the proposed method accurately predicted the optimal exposure time under single-shot condition.
Article
Engineering, Electrical & Electronic
Lei Yang et al.
Summary: This paper proposes a novel image denoising method for automatic laser stripe extraction in intelligent robot welding applications. By introducing deep convolutional neural networks and attention mechanism to extract and accumulate features, and using bi-directional ConvLSTM blocks to learn multi-scale and long-range contexts, the proposed method achieves high detection precision and good robustness against strong image noise interference.
IEEE SENSORS JOURNAL
(2022)
Article
Optics
Maosen Wan et al.
Summary: This study proposes a robust and accurate method for sub-pixel feature extraction of laser stripes in 3D laser scanning measurement, utilizing deep semantic segmentation network for laser stripe segmentation and Shepard sub-pixel interpolation method. Comparative experiments show that the proposed method can achieve higher precision and anti-interference results in complex measurement conditions compared to traditional methods.
Article
Chemistry, Multidisciplinary
Huiping Gao et al.
Summary: In this paper, a novel method for extracting light stripes in rail images is proposed, which includes preprocessing, center of mass detection, segmentation, and piecewise fitting for obtaining a smooth and robust centerline.Experimental results demonstrate the effectiveness of the proposed method for rail images.
APPLIED SCIENCES-BASEL
(2021)
Article
Optics
Arnaldo Leal-Junior et al.
Summary: This paper presents the development of an optical fiber-embedded smart wound dressing for pH assessment, which can also function as a pressure sensor. The smart bandage enables simultaneous assessment of pressure and pH on the wound region, providing a comprehensive evaluation of wound condition.
PHOTONICS RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
Zaixing He et al.
Summary: This article introduces a novel structured-light 3D measurement technique that works in the presence of reflective highlights, focusing on designing chessboard-like coding schema and crossover-based decoding schemes. By utilizing high-frequency patterns and extracting crossover positions using an inverse-pattern method, the proposed method effectively suppresses surface reflections and enhances measurement accuracy. Extensive experiments demonstrate the high performance of the method with minimal overhead.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Engineering, Electrical & Electronic
Zhikai Li et al.
Summary: This article proposes a hardware-oriented algorithm based on the Hessian matrix for fast and accurate extraction of a laser centerline, which is divided into three low-coupling modules for parallel processing. By extracting features from the region of interest (ROI) and calculating the Hessian matrix, the algorithm achieves subpixel precision positioning of the laser center point.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Engineering, Multidisciplinary
Xiaozhong Guo et al.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2020)
Article
Engineering, Electrical & Electronic
Wei Liu et al.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2020)
Article
Computer Science, Artificial Intelligence
Liang-Chieh Chen et al.
IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
(2018)
Article
Optics
Rui Min et al.
Article
Optics
Xiao-Qia Yin et al.
Article
Computer Science, Artificial Intelligence
Tian Qingguo et al.
PATTERN RECOGNITION
(2016)
Article
Optics
Liguo Zhang et al.
OPTICS AND LASER TECHNOLOGY
(2014)
