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3d image acquisition and display: technology, perception and applications, 3d, COSI, dH, FLatOptics, IS, pcAOP 2023 - Part of Imaging and Applied Optics Congress 2023

作者： Todo, Ryuju Inoue, Tomoyoshi Hashimoto, Sota Yamaguchi, Ryuki Notte, Shun Nishio, Kenzo Rajput, Sudheesh K. Matoba, Osamu Awatsuji, Yasuhiro Kyoto Institute of Technology Matsugasaki Sakyo-ku Kyoto606-8585 Japan Japan Society for the Promotion of Science Kojimachi Business Center Building 5-3-1 Kojimachi Chiyoda-ku Tokyo102-0083 Japan Kobe University Rokkodai 1-1 Nada-ku Kobe657-8501 Japan

images obtained by parallel two-step phase-shifting digital holography that does not require recording of intensity of reference wave vary according to the pixel-extraction direction. We evaluated the quality of obtai... 详细信息

ISBN: (纸本)9781957171289

关键词： Quality control

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Multimodal 3d measurement setup for generating multimodal real-world data sets for AI-based transparent object recognition 13

Multimodal 3D measurement setup for generating multimodal re...

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Conference on dimensional Optical Metrology and Inspection for Practical applications XIII

作者： Junger, Christina Landmann, Martin Speck, Henri Heist, Stefan Notni, Gunther Tech Univ Ilmenau Dept Mech Engn Grp Qual Assurance & Ind Image Proc Ilmenau Germany Fraunhofer Inst Appl Opt & Precis Engn Jena Germany

ISBN: (纸本)9781510673953;9781510673946

Multimodal 3d imaging is a key technology in various areas, such as medical technology, trust-based human-robot collaboration and material recognition for recycling. This technology offers new possibilities, particularly for the 3d perception of optically uncooperative surfaces in the VIS and NIR spectral range, e.g., transparent or specular materials. For this purpose, a thermal 3d sensor developed by Landmann et al. allows the 3d detection of transparent and reflective surfaces without object preparation, which can be used to generate real multimodal 3d data sets for AI-based methods. The 3d perception of optically uncooperative surfaces in VIS or NIR is still nowadays an open challenge (cf. Jiang et al.). However, to overcome this challenge with AI-based networks for segmentation, pose estimation or 3d reconstruction (monocular/stereo), data sets with optically uncooperative objects are mandatory. Currently, only few real-world data sets are available. This is due to the high effort and time-consuming process of generating these data sets with ground truth. Currently, transparent objects must be prepared, e.g., painted or powdered, or an identical opaque twin of the uncooperative object is needed (for 3d reconstruction). Currently, transparent object must be labeled manually for segmentation. This makes data acquisition very time consuming and elaborate. We present our multimodal 3d measurement system as well as our new measurement principle, with which we can generate real multimodal 3d data sets with annotation without object preparation techniques. This system significantly reduces the effort required for data acquisition. We also show the advantages and disadvantages of our measurement principle and data set compared to other data sets (generated with object preparation), as well as the current limitations of our novel method. In addition, we discuss the key role of data sets in AI-based methods.

关键词： multimodal imaging deep stereo matching monocular depth estimation segmentation pose estimation data set real non-synthetic object preparation object painting non-Lambertian surface transparent specular thermal 3d sensor TMRP artificial intelligence

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Sound Field Imaging in Gas Flow using Parallel Phase-Shifting digital Holography and Fourier Transform

Sound Field Imaging in Gas Flow using Parallel Phase-Shiftin...

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3d image acquisition and display: technology, perception and applications, 3d, COSI, dH, FLatOptics, IS, pcAOP 2023 - Part of Imaging and Applied Optics Congress 2023

作者： Notte, Shun Hashimoto, Sota Inoue, Tomoyoshi Nishio, Kenzo Xia, Peng Rajput, Sudheesh K. Matoba, Osamu Awatsuji, Yasuhiro Graduate School of Science and Technology Kyoto Institute of Technology Matsugasaki Sakyo-ku Kyoto606-8585 Japan Japan Society for the Promotion of Science Kojimachi Business Center Building 5-3-1 Kojimachi Chiyoda-ku Tokyo102-0083 Japan Advanced Technology Center Kyoto Institute of Technology Matsugasaki Goshokaido-Cho Sakyo-ku Kyoto606-8585 Japan Central 2 1-1-1 Umezono Tsukuba305-8568 Japan Kobe University Organization for Advanced and Integrated Research Rokkodai 1-1 Kobe Nada657-850 Japan Faculty of Electrical Engineering and Electronics Kyoto Institute of Technology Matsugasaki Sakyo-ku Kyoto606-8585 Japan

We propose a method for imaging of sound propagating in gas flow. We recorded a sound and gas flow simultaneously and separated the images of sound from phase images disturbed by gas flow. © 2023 The Author (s).

ISBN: (纸本)9781957171289

关键词： Flow of gases

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Comparison of Non-contact Air Temperature Imaging Technique using Parallel Phase-shifting digital Holography with Thermocouples

Comparison of Non-contact Air Temperature Imaging Technique ...

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3d image acquisition and display: technology, perception and applications, 3d, COSI, dH, FLatOptics, IS, pcAOP 2023 - Part of Imaging and Applied Optics Congress 2023

作者： Kumon, Yuki Inoue, Tomoyoshi Nishio, Kenzo Xia, Peng Kumar, Manoj Matoba, Osamu Rajput, Sudheesh K. Awatsuji, Yasuhiro Graduate School of Science and Technology Kyoto Institute of Technology Matsugasaki Sakyo-ku Kyoto606-8585 Japan Japan Society for the Promotion of Science Kojimachi Business Center Building 5-3-1Kojimachi Chiyoda-ku Tokyo102-0083 Japan Advanced Technology Center Kyoto Institute of Technology Matsugasaki Sakyo-ku Kyoto606-8585 Japan Central 2 1-1-1 Umezono Tsukuba305-8568 Japan Graduate School of System Informatics Kobe University Rokkodai 1-1 Kobe Nada657-8501 Japan Faculty of Electrical Engineering and Electronics Kyoto Institute of Technology Matsugasaki Sakyo ku Kyoto606-8585 Japan

We experimentally compared the air temperatures measured by non-contact imaging technique using parallel phase-shifting digital holography with those measured with a thermocouple. This study revealed that the techniqu... 详细信息

ISBN: (纸本)9781957171289

关键词： Thermocouples

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Laser-driven MeV X-ray Radiography using the NIF-ARC laser system

Laser-Driven MeV X-ray Radiography using the NIF-ARC laser s...

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3d image acquisition and display: technology, perception and applications, 3d, COSI, dH, FLatOptics, IS, pcAOP 2023 - Part of Imaging and Applied Optics Congress 2023

作者： Rusby, d. Kerr, S.M. Williams, G.J. Kemp, A. Aghedo, A. MacPhee, A. Wilks, S. Hill, M.P. Aufderheide, M. Bude, J. Mackinnon, A. Lawrence Livermore National Laboratory LivermoreCA94550 United States

ISBN: (纸本)9781957171289

High intensity lasers (>1 x 1018 W/cm2) interacting with a plasma can accelerate a spectrum of electrons whose temperature can be several mega-electron volts. It has been shown experimentally that the efficiency of laser energy into this electron population is on the order of 10s of percent. There are many potential applications of laser driven sources including the acceleration of protons from a mechanism known as Target-Normal-Sheath-Acceleration and the subsequent generation of neutrons. One application is x-ray radiography. If the populations of MeV electrons are accelerated into a high-Z converter, MeV x-rays can be generated via bremsstrahlung [1].

关键词： High power lasers Laser applications Laser efficiency Laser energy Laser sources Laser systems

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Energy-Efficient ReS2-Based Optoelectronic Synapse for 3d Object Reconstruction and Recognition

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ACS APPLIEd MATERIALS & INTERFACES 2023年第50期15卷 58631-58642页

作者： Chen, Yabo Huang, Yujie Zeng, Junwei Kang, Yan Tan, Yinlong Xie, Xiangnan Wei, Bo Li, Cheng Fang, Liang Jiang, Tian Natl Univ Def Technol Inst Quantum Informat Coll Comp Changsha 410073 Peoples R China Natl Univ Def Technol Coll Comp State Key Lab High Performance Comp Changsha 410073 Peoples R China Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Peoples R China Natl Univ Def Technol Inst Quantum Informat Sci & Technol Coll Sci Changsha 410073 Peoples R China

The neuromorphic vision system (NVS) equipped with optoelectronic synapses integrates perception, storage, and processing and is expected to address the issues of traditional machine vision. However, owing to their lack of stereo vision, existing NVSs focus on 2d image processing, which makes it difficult to solve problems such as spatial cognition errors and low-precision interpretation. Consequently, inspired by the human visual system, an NVS with stereo vision is developed to achieve 3d object recognition, depending on the prepared ReS2 optoelectronic synapse with 12.12 fJ ultralow power consumption. This device exhibits excellent optical synaptic plasticity derived from the persistent photoconductivity effect. As the cornerstone for 3d vision, color planar information is successfully discriminated and stored in situ at the sensor end, benefiting from its wavelength-dependent plasticity in the visible region. Importantly, the dependence of the channel conductance on the target distance is experimentally revealed, implying that the structure information on the object can be directly captured and stored by the synapse. The 3d image of the object is successfully reconstructed via fusion of its planar and depth images. Therefore, the proposed 3d-NVS based on ReS2 synapses for 3d objects achieves a recognition accuracy of 97.0%, which is much higher than that for 2d objects (32.6%), demonstrating its strong ability to prevent 2d-photo spoofing in applications such as face payment, entrance guard systems, and others.

关键词： neuromorphic visionsystem optoelectronic synapse stereo vision 3d object recognition persistentphotoconductivity

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3d image acquisition using COACH and related systems

3D image acquisition using COACH and related systems

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3d image acquisition and display: technology, perception and applications, 3d 2022

作者： Rosen, Joseph School of Electrical and Computer Engineering Ben-Gurion University of the Negev P.O. Box 653 Beer-Sheva8410501 Israel

New techniques of 3d image acquisition using coded aperture correlation holography (COACH) with unique imaging properties are presented. Among other things, COACH is applied for incoherent 3d imaging with an extended ... 详细信息

ISBN: (纸本)9781957171098

关键词： image acquisition

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高逼真3d光场显示关键技术(特邀)

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光学学报 2025年第2期45卷 68-86页

作者：李涵宇于迅博高鑫桑新柱颜玢玢北京邮电大学电子工程学院北京100876

详细总结了高逼真3d光场显示的关键技术及其基本原理,包括光场显示系统构建、光场显示控光技术和光场显示图像编码等,并详细阐述了它们在3d光场显示技术中的作用。为使高逼真3d光场显示技术真正地得到推广应用,必须全面考虑各种因素,包... 详细信息

详细总结了高逼真3d光场显示的关键技术及其基本原理,包括光场显示系统构建、光场显示控光技术和光场显示图像编码等,并详细阐述了它们在3d光场显示技术中的作用。为使高逼真3d光场显示技术真正地得到推广应用,必须全面考虑各种因素,包括完善显示系统的构建、控光技术的优化和编码技术的改进。希望该综述能够为3d光场显示技术的研究和发展提供有益参考。

关键词：显示技术光场系统构建精准控光图像编码

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design of intelligent 3d collaborative manufacturing platform for non-holonomic mobile industrial robots based on improved binocular vision

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INTERNATIONAL JOURNAL OF INTELLIGENT ROBOTICS ANd applications 2023年第4期7卷 740-751页

作者： Mei, Wentao Zheng, Yongfeng Gu, Yu Tianjin Bohai Vocat Tech Coll Mech & Elect Engn Coll Tianjin 300402 Peoples R China

The complexity of industrial production line of non-integrated mobile industrial robot is high, which leads to the deviation of industrial robot trajectory and low working accuracy, which further affects the production progress. In order to improve the stability of industrial robots, the design of intelligent three-dimensional collaborative manufacturing platform for nonholonomic mobile industrial robots based on improved binocular vision is proposed. ARM controller, data transmission and communication module, PLC control module and PLC input and output wiring module are designed, and the four functional modules work in coordination to realize accurate perception of the working area. A binocular vision model based on texture image and 3d point cloud registration is constructed. The trajectory of nonholonomic mobile industrial robot is obtained by fuzzy function estimation and variational function, and the object posture is recognized. The intelligent 3d collaborative manufacturing platform of mobile industrial robot is designed by combining the intelligent 3d collaborative manufacturing technology. The test results show that the proposed method has better trajectory control effect, better sequencing performance and better robustness. It shows that this method can effectively control nonholonomic mobile industrial robots.

关键词： Improve binocular vision Robot Fuzzy function Variational function Trajectory control

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Research on the deployment Strategy of a Ring Sparse Array Camera Applied to Real-Time Scene Fusion of digital Twins 8th

Research on the Deployment Strategy of a Ring Sparse Array C...

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8th Purple Mountain Forum on Smart Grid Protection and Control, PMF 2023

作者： Zhang, Ziqian Li, Shengsheng Meng, Qingqiang Shi, Kang She, Yunbo Nanjing NARI Information and Communication Technology Co. Ltd. Nanjing211106 China

ISBN: (纸本)9789819992508

A deployment strategy for a ring sparse array camera applied to digital twin real-time scene fusion is proposed to address the challenges of virtual and physical data synchronization and consistency in power grid equipment. Faced with the current situation of numerous components, diverse shapes, and complex occlusion relationships in power grid equipment, the optimization goal is to use the minimum number of cameras to cover the target area and synthesize any freely viewed synthetic image. The strategy described in this paper can improve the accuracy, fidelity and real-time of image acquisition while reducing the number of cameras to control the cost of image acquisition, thus breaking through the key difficulties of real-time replication and fusion of the main transmission and transformation equipment scene, promoting the mutual supplement of spatial data and live data, and strengthening the real-time perception and response capability of the physical state, Breaking the current low-level visualization application status of the digital twin "3d modeling, data hooking, and 3d display" in the power grid. © 2024, State Grid Electric Power.

关键词： Cameras

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