Towards Near Real-time Digital Twins of Construction Sites: Developing High-LOD 4D Simulation Based on Computer Vision and RTLS

2021 ◽  
Author(s):  
Yusheng Huang ◽  
Amin Hammad ◽  
Ghazaleh Torabi ◽  
Ali Ghelmani ◽  
Michel Guevremont
Keyword(s):  
Computer Vision ◽  
Real Time ◽  
Construction Sites ◽  
Digital Twins ◽  
Simulation Based

scholarly journals Pose Estimation of Excavator Manipulator Based on Monocular Vision Marker System

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4478
Author(s):  
Jiangying Zhao ◽  
Yongbiao Hu ◽  
Mingrui Tian
Keyword(s):  
Computer Vision ◽  
Error Analysis ◽  
Real Time ◽  
Construction Industry ◽  
Pose Estimation ◽  
Measurement System ◽  
Monocular Vision ◽  
Construction Sites ◽  
Orientation Error ◽  
Marker System

Excavation is one of the broadest activities in the construction industry, often affected by safety and productivity. To address these problems, it is necessary for construction sites to automatically monitor the poses of excavator manipulators in real time. Based on computer vision (CV) technology, an approach, through a monocular camera and marker, was proposed to estimate the pose parameters (including orientation and position) of the excavator manipulator. To simulate the pose estimation process, a measurement system was established with a common camera and marker. Through comprehensive experiments and error analysis, this approach showed that the maximum detectable depth of the system is greater than 11 m, the orientation error is less than 8.5°, and the position error is less than 22 mm. A prototype of the system that proved the feasibility of the proposed method was tested. Furthermore, this study provides an alternative CV technology for monitoring construction machines.

Real-time cloth simulation based on particle constraints

2011 ◽  
Vol 31 (1) ◽  
pp. 289-292
Author(s):  
Zhong-hua LU ◽  
Ding-fang CHEN
Keyword(s):  
Real Time ◽  
Cloth Simulation ◽  
Simulation Based

Real-time Drowsiness and Distraction Detection using Computer Vision and Deep Learning

2020 ◽  
Author(s):  
Phakawat Pattarapongsin ◽  
Bipul Neupane ◽  
Jirayus Vorawan ◽  
Harit Sutthikulsombat ◽  
Teerayut Horanont
Keyword(s):  
Computer Vision ◽  
Deep Learning ◽  
Real Time
Sign in / Sign up

Export Citation Format

Share Document