The Cooperative Vehicle Infrastructure System Based on Machine Vision

2017 ◽  
Author(s):  
Daxin Tian ◽  
Chuang Zhang ◽  
Xuting Duan ◽  
Jianshan Zhou ◽  
Zhengguo Sheng ◽  
...  
Keyword(s):  
Machine Vision ◽  
Infrastructure System

scholarly journals Digital Twin System of Bridges Group based on Machine Vision Fusion Monitoring of Bridge Traffic Load

2021 ◽  
Author(s):  
Danhui Dan ◽  
Yufeng Ying ◽  
Liangfu Ge
Keyword(s):  
Machine Vision ◽  
Transportation Network ◽  
Physical Space ◽  
Intelligent Transportation ◽  
Transportation Infrastructure ◽  
Traffic Load ◽  
Digital Twin ◽  
Twin System ◽  
Traffic Loads ◽  
Infrastructure System

Bridges play an important role in transportation infrastructure systems. Intelligent and digital management of bridges group is an essential part of the future intelligent transportation infrastructure system. This paper proposes a digital twin system for bridges group in the regional transportation infrastructure network, which is interconnected by measured traffic loads. In physical space, a full-bridge traffic load monitoring system based on information fusion of weigh-in-motion (WIM) and multi-source heterogeneous machine vision is set up on the target bridge to measure traffic loads, also lightweight sensors are employed on the bridges group for structural response information. Furthermore, by establishing mechanical analysis models in the corresponding digital space and using the measured traffic loads as links, the working condition perception and safety warning of all bridges in the regional transportation network is achieved, forming an important support for further intelligent transportation infrastructure system. The proposed digital twin system has been preliminarily implemented in a bridges group around Shanghai, China, demonstrating the feasibility of the technical framework proposed in this paper and the bright prospects.

Machine Vision

2009 ◽  
Author(s):  
Wesley E. Snyder ◽  
Hairong Qi
Keyword(s):  
Machine Vision

Classroom Lighting Energy-Saving Control System Based on Machine Vision Technology

2018 ◽  
pp. 143-149 ◽  
Author(s):  
Ruijie CHENG
Keyword(s):  
Control System ◽  
Machine Vision ◽  
Energy Saving ◽  
Back Propagation ◽  
Back Propagation Neural Network ◽  
Lighting Control ◽  
Lighting Energy ◽  
Neural Network Algorithm ◽  
Energy Saving Control ◽  
Model Algorithm

In order to further improve the energy efficiency of classroom lighting, a classroom lighting energy saving control system based on machine vision technology is proposed. Firstly, according to the characteristics of machine vision design technology, a quantum image storage model algorithm is proposed, and the Back Propagation neural network algorithm is used to analyze the technology, and a multi­feedback model for energy­saving control of classroom lighting is constructed. Finally, the algorithm and lighting model are simulated. The test results show that the design of this paper can achieve the optimization of the classroom lighting control system, different number of signals can comprehensively control the light and dark degree of the classroom lights, reduce the waste of resources of classroom lighting, and achieve the purpose of energy saving and emission reduction. Technology is worth further popularizing in practice.

Machine Vision, Let's Go into the Street

1997 ◽  
Vol 117 (10) ◽  
pp. 1339-1344
Author(s):  
Katsuhiko Sakaue ◽  
Hiroyasu Koshimizu
Keyword(s):  
Machine Vision

Machine Vision Technologies to Connect with Humans

2005 ◽  
Vol 125 (11) ◽  
pp. 692-695
Author(s):  
Kazunori UMEDA ◽  
Yoshimitsu AOKI
Keyword(s):  
Machine Vision

Multifunctional stereoscopic machine vision system with multiple 3D outputs

2020 ◽  
Keyword(s):  
Machine Vision ◽  
International Symposium ◽  
Fast Track ◽  
Vision System ◽  
Machine Vision System ◽  
Stereoscopic Displays ◽  
Electronic Imaging

Fast track article for IS&T International Symposium on Electronic Imaging 2020: Stereoscopic Displays and Applications proceedings.

A Flying Gray Ball Multi-illuminant Image Dataset for Color Research

2020 ◽  
Vol 64 (5) ◽  
pp. 50411-1-50411-8
Author(s):  
Hoda Aghaei ◽  
Brian Funt
Keyword(s):  
Machine Vision ◽  
Spectral Reflectance ◽  
Color Constancy ◽  
Ground Truth ◽  
Practical Approach ◽  
Post Processing ◽  
Illumination Estimation ◽  
Processing Step ◽  
Image Dataset

Abstract For research in the field of illumination estimation and color constancy, there is a need for ground-truth measurement of the illumination color at many locations within multi-illuminant scenes. A practical approach to obtaining such ground-truth illumination data is presented here. The proposed method involves using a drone to carry a gray ball of known percent surface spectral reflectance throughout a scene while photographing it frequently during the flight using a calibrated camera. The captured images are then post-processed. In the post-processing step, machine vision techniques are used to detect the gray ball within each frame. The camera RGB of light reflected from the gray ball provides a measure of the illumination color at that location. In total, the dataset contains 30 scenes with 100 illumination measurements on average per scene. The dataset is available for download free of charge.

Perpindahan dan Perubahan : Transportasi dalam Struktur Naratif Riwayat Perjalanan ke Amerika di Era Viktorian

Metahumaniora ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Ari J. Adipurwawijdana
Keyword(s):  
Nineteenth Century ◽  
Subject Matter ◽  
Henry James ◽  
World View ◽  
Democratic Society ◽  
Transportation Infrastructure ◽  
Material Base ◽  
Travel Narrative ◽  
Infrastructure System ◽  
The Subject

ABSTRAKRiwayat yang disajikan penulis Britania era Viktorian tentang perjalannnya ke Amerikamengasumsikan adanya sebuah jaringan prasarana transportasi. Sistem transportasiterkait dengan riwayat perjalanan (travel narrative) dalam tiga hal, yaitu (1) sebagaibasis material bagi perjalanan, (2) sebagai substruktur riwayat, dan (3) sebagai pokokpembicaraan dalam riwayat itu sendiri. Buku Domestic Manners of the Americans (1832)merupakan model bagi cara infrastruktur transportasi menentukan aspek naratologis,yaitu urutan dan perspektif dalam struktur naratif riwayat perjalanan. Karya tersebut jugamenyajikan transportasi sebagai pokok pembicaraan dalam teksnya itu sendiri walaupun tidaksejauh sebagaimana yang tampak pada The Amateur Emigrant (1895) karya Robert LouisStevenson. Dalam hal ini, The American Scene (1907) karya Henry James juga relevankarena, walaupun tidak secara gamblang membicarakan transportasi sebagai topik dantidak pula menampakkan ciri-ciri riwayat perjalanan, karya tersebut merepresentasicara wawasan Britania-Amerika trans-Atlantik dianggap sebagai sesuatu yang lumrah.Wawasan ini juga memandang menganggap perjalanan trans-Atlantik sebagai semacamperjalanan menembus waktu, yang menunjukkan ketidaknyaman para penulis Britaniaabad kesembilanbelas terhadap transformasi sosial ke masyrakat demokratis yangdirepresentasi secara metaforis oleh pemahaman mereka tentang Amerika.Kata kunci: catatan perjalanan Viktorian, transportasi, wisataABSTRACTNarratives presented by Victorian British writers about their travels to America assume theavailability of a transprtation infrastructure system. Such a system is related to the travelnarrative in three things, namely, (1) as a material base for travel, (2) as a narrative substructurehistory, and (3) as the subject-matter of the narratives. Fanny Trollope’s Domestic Mannerof the Americans (1832) is a model for the way transportation infrastructure determinesnarratological aspects, namely order and perspective in the structure of the travel narrative.The piece also presents transportation as a subject-matter in its text although it does notgo so far as do Robert Louis Stevenson’s The Amateur Emigrant (1895). In discussingtransportation Henry James’ The American Scene is also relevant because, despite it’s notexplicitly speaking of transportation as a topic nor does it show the convential characteristicsof the travel narrative, the work represents a British-American trans-Atlantic world viewas a given. This world view also considers trans-Atlantic travels as a kind of voyage acrosstime, implying the discomfort of nineteenth-century British writers concerning the socialtransition into a democratic society represented by America as a metaphor.Keywords: Victorian travel narrative, transportation, tourism

Effect of Field Setup on Accuracy of Traffic Data Collection Using Machine Vision Technology

2002 ◽  
Vol 1804 (1) ◽  
pp. 62-66 ◽  
Author(s):  
Sunita Nadella ◽  
Lloyd A. Herman
Keyword(s):  
Machine Vision ◽  
Focal Length ◽  
Reference Points ◽  
Specific Reference ◽  
Traffic Data ◽  
Video Traffic ◽  
Vertical Angle ◽  
Traffic Data Collection ◽  
Camera Position ◽  
Parameter Ranges

Video traffic data were collected in 24 combinations of four different camera position parameters. A machine vision processor was used to detect vehicle speeds and volumes from the videotapes. The machine vision results were then compared with the actual vehicle volumes and speeds to give the percentage errors in each case. The results of the study provide a procedure with which to establish camera position parameters with specific reference points to help machine vision users select suitable camera positions and develop appropriate measurement error expectations. The camera position parameters that were most likely to produce the least overall volume and speed errors, for the specific site and field setup with the parameter ranges used in this study, were the low height of approximately 7.6 m (25 ft), with an upstream orientation (traffic moving toward the camera), a 50-mm (midangle) focal length, and a 15° vertical angle.

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