Structure‐PoseNet for identification of dense dynamic displacement and three‐dimensional poses of structures using a monocular camera

2021 ◽  
Author(s):  
Jin Zhao ◽  
Fangqiao Hu ◽  
Yang Xu ◽  
Wangmeng Zuo ◽  
Jiwei Zhong ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Dynamic Displacement ◽  
Monocular Camera

Monocular Camera Three Dimensional Reconstruction Based on Optical Flow Feedback

2015 ◽  
Vol 35 (5) ◽  
pp. 0515001 ◽  
Author(s):  
李秀智 Li Xiuzhi ◽  
杨爱林 Yang Ailin ◽  
秦宝岭 Qin Baoling ◽  
贾松敏 Jia Songmin ◽  
邱欢 Qiu Huan
Keyword(s):  
Optical Flow ◽  
Three Dimensional ◽  
Three Dimensional Reconstruction ◽  
Monocular Camera ◽  
Dimensional Reconstruction

scholarly journals Dynamic Displacement of an Aluminum Frame Using Close Range Photogrammetry

Buildings ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 176 ◽  
Author(s):  
Setareh Ghaychi Afrouz ◽  
Mohammad Reza Razavi ◽  
Ashkan Pourkand ◽  
Claudia Mara Dias Wilson
Keyword(s):  
Numerical Models ◽  
Three Dimensional ◽  
Contact Method ◽  
Dynamic Displacement ◽  
Close Range Photogrammetry ◽  
Displacement Sensors ◽  
Laser Scanners ◽  
Close Range ◽  
Story Building ◽  
Unconventional Methods

Dynamic displacement measurement of objects can be challenging due to the limitations of conventional methods and pricey instrumentation of unconventional methods, such as laser scanners. In this research, Close Range Photogrammetry (CRP) is used as an affordable non-contact method to measure 3D dynamic displacements. It is proposed as a reliable alternative to traditional dynamic deformation measurement methods such as displacement sensors or accelerometers. For this purpose, dynamic displacements of a three-dimensional one-story building frame model on a one-dimensional shake table are determined by using the traditional method of attached accelerometer and CRP. The results of the CRP method are compared with the results of the traditional methods as well as numerical models. The results show a good agreement which evidences the reliability of the CRP with regular cameras.

Study on three-dimensional measurement system for dynamic displacement using image processing

2003 ◽  
Vol 2003.40 (0) ◽  
pp. 197-198
Author(s):  
Osamu FURUYA ◽  
Satoshi Fujita ◽  
Yasushi Niitsu ◽  
Tadashi Mikoshiba ◽  
Daisuke Nakano ◽  
...  
Keyword(s):  
Image Processing ◽  
Measurement System ◽  
Three Dimensional ◽  
Dynamic Displacement ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement

Study on 3-D Measurement Method in Shake Table Tests Using Image Processing Technique: 4th Report — Evaluation of Synthetic Measurement Performance

2006 ◽  
Author(s):  
Satoshi Fujita ◽  
Osamu Furuya ◽  
Hidetaka Hayashi
Keyword(s):  
Image Processing ◽  
Measurement System ◽  
Measurement Method ◽  
Three Dimensional ◽  
Processing Technique ◽  
Shake Table Test ◽  
Image Processing Technique ◽  
Shake Table ◽  
Shake Table Tests ◽  
Dynamic Displacement

In recent years, the importance of the fracturing test using the full-scale model is recognized in order to upgrade an earthquake resistant design. It is, moreover, important to develop a new measurement method which can measure a complex three-dimensional behavior in such fracturing test. This study has been doing research and development of three-dimensional measurement method using an image processing technique for a measurement of dynamic displacement in shake table test without any contact. This measurement system is a very convenient system because it can measure the three-dimensional dynamic displacement in the simple experimental condition that the several makers are only attached to the surface of an experimental structure. The system therefore is the most suitable measurement system for an evaluation of complex three-dimensional behavior of test model. The fundamental hardware and software for the measurement system has been constructed until now. The fundamental dynamic measurement accuracy and effectiveness of the measurement system has been also confirmed from several shake table tests. This paper describes the measurement results of shake table test using historical wooden structure and actual wooden house model in the largest shake table facilities at E-Defense, and evaluates synthetic measurement performance of the developed measurement system.

Study on 3-D Measurement Method in Shake Table Tests Using Image Processing Technique: 3rd Report, Examination of Upgrading for Measurement Accuracy in Actual Fracturing Test

2005 ◽  
Author(s):  
Satoshi Fujita ◽  
Osamu Furuya ◽  
Hiroki Mizuno
Keyword(s):  
Image Processing ◽  
Measurement System ◽  
Measurement Method ◽  
Measurement Accuracy ◽  
Three Dimensional ◽  
Processing Technique ◽  
Image Processing Technique ◽  
Shake Table ◽  
Shake Table Tests ◽  
Dynamic Displacement

In recent years, the importance of the fracturing test using the full-scale model is recognized in order to upgrade an earthquake resistant design. It is, moreover, important to develop a new measurement method which can measure a complex three-dimensional behaviour in such fracturing test. This study has been doing research and development of three-dimensional measurement method using an image processing technique for a measurement of dynamic displacement in shake table test without any contact. This measurement system is a very convenient system because it can measure the three-dimensional dynamic displacement in the simple experimental condition that the several makers are only attached to the surface of an experimental structure. The system therefore is the most suitable measurement system for an evaluation of complex 3-dimensional behavior of test model. Fundamental hardware and software for the measurement system has been constructed until now. The fundamental dynamic measurement accuracy and effectiveness of the measurement system has been also confirmed from several shake table tests. This paper describes the examination of the upgrading for the measurement accuracy in actual fracturing test. Moreover, the shake table test results using actual wooden house model were also indicated.

Simulation of Vision-Based Royal Jelly Collecting Robot

2012 ◽  
Vol 233 ◽  
pp. 247-254
Author(s):  
Zhen Wang ◽  
Xiang Ming Dun ◽  
Xiang Yong Dun
Keyword(s):  
Inverse Kinematics ◽  
Royal Jelly ◽  
Industrial Robot ◽  
Three Dimensional ◽  
New Method ◽  
Forward Kinematics ◽  
Fourier Descriptors ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Monocular Camera

A new method to collect royal jelly is proposed according to the view of industrial robot. A three-dimensional model of royal jelly collecting robot with a monocular camera is built. Detecting the particular shapes via Fourier Descriptors and finding the corresponding target points though the image shot by the camera. The vision-based process and the 3-D simulation are performed alternately to simulate picking up queen bee larvae according to robotic forward kinematics and inverse kinematics.

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