scholarly journals Curved light surface model for calibration of a structured light 3D modeling system based on striped patterns

2020 ◽  
Vol 28 (22) ◽  
pp. 33240
Author(s):  
Di Yang ◽  
Dayong Qiao ◽  
Changfeng Xia
Keyword(s):  
3D Modeling ◽  
Structured Light ◽  
Surface Model ◽  
Light Surface

scholarly journals Urban Building Extraction and Modeling Using GF-7 DLC and MUX Images

2021 ◽  
Vol 13 (17) ◽  
pp. 3414
Author(s):  
Heng Luo ◽  
Biao He ◽  
Renzhong Guo ◽  
Weixi Wang ◽  
Xi Kuai ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Modeling ◽  
3D Visualization ◽  
Smart Cities ◽  
Three Dimensions ◽  
Surface Model ◽  
Building Extraction ◽  
Double Line ◽  
Building Model ◽  
Urban Scene

Urban modeling and visualization are highly useful in the development of smart cities. Buildings are the most prominent features in the urban environment, and are necessary for urban decision support; thus, buildings should be modeled effectively and efficiently in three dimensions (3D). In this study, with the help of Gaofen-7 (GF-7) high-resolution stereo mapping satellite double-line camera (DLC) images and multispectral (MUX) images, the boundary of a building is segmented via a multilevel features fusion network (MFFN). A digital surface model (DSM) is generated to obtain the elevation of buildings. The building vector with height information is processed using a 3D modeling tool to create a white building model. The building model, DSM, and multispectral fused image are then imported into the Unreal Engine 4 (UE4) to complete the urban scene level, vividly rendered with environmental effects for urban visualization. The results of this study show that high accuracy of 95.29% is achieved in building extraction using our proposed method. Based on the extracted building vector and elevation information from the DSM, building 3D models can be efficiently created in Level of Details 1 (LOD1). Finally, the urban scene is produced for realistic 3D visualization. This study shows that high-resolution stereo mapping satellite images are useful in 3D modeling for urban buildings and can support the generation and visualization of urban scenes in a large area for different applications.

scholarly journals Structured-light surface scanning system to evaluate breast morphology in standing and supine positions

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Olivia L. H. Tong ◽  
Astrid Chamson-Reig ◽  
Lawrence C. M. Yip ◽  
Muriel Brackstone ◽  
Mamadou Diop ◽  
...  
Keyword(s):  
Structured Light ◽  
Scanning System ◽  
Surface Scanning ◽  
Light Surface ◽  
Breast Morphology

Sphere-Based Geometrical Calibration Method for Structured Light Surface Measurement Systems

2012 ◽  
Vol 571 ◽  
pp. 433-438 ◽  
Author(s):  
Jules Douet ◽  
Jing Xu ◽  
Ken Chen
Keyword(s):  
Structured Light ◽  
Calibration Method ◽  
Ease Of Use ◽  
Translation Method ◽  
Surface Measurement ◽  
Measurement Systems ◽  
Light System ◽  
Light Surface ◽  
Calibration Time ◽  
Structured Light System

This paper proposes a sphere-based calibration method for the structured light system with unconstrained one projector & one camera, regardless of pattern codification. A 1-pose example of such a method is also proposed and tested. In comparison with a traditional plane translation method of 15 poses, we note an increase in the consistency of more than 10% while the calibration time shrinks to 6% and the calibration accessory is reduced to the size of a flash-light. This method suits well for applications where mobility, speed and ease-of-use are important criteria.

scholarly journals 3D Modeling of Archaeological Artifacts by Structured Light Scanner

2019 ◽  
Vol 27 (3) ◽  
pp. 102-112
Author(s):  
Chistyakov P. ◽  
◽  
Kovalev V. ◽  
Kolobova K. ◽  
Shalagina A. ◽  
...  
Keyword(s):  
3D Modeling ◽  
Structured Light ◽  
Structured Light Scanner ◽  
Archaeological Artifacts
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