Specular surface measurement based on fringe reflection and study on 3D shape reconstruction technique

Author(s):  
Ronggang Zhu ◽  
Rihong Zhu ◽  
Qian Song ◽  
Jianxin Li
2012 ◽  
Vol 51 (31) ◽  
pp. 7616 ◽  
Author(s):  
Hongwei Zhang ◽  
Shujian Han ◽  
Shugui Liu ◽  
Shaohui Li ◽  
Lishuan Ji ◽  
...  

Photonics ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 459
Author(s):  
Hieu Nguyen ◽  
Zhaoyang Wang

Accurate three-dimensional (3D) shape reconstruction of objects from a single image is a challenging task, yet it is highly demanded by numerous applications. This paper presents a novel 3D shape reconstruction technique integrating a high-accuracy structured-light method with a deep neural network learning scheme. The proposed approach employs a convolutional neural network (CNN) to transform a color structured-light fringe image into multiple triple-frequency phase-shifted grayscale fringe images, from which the 3D shape can be accurately reconstructed. The robustness of the proposed technique is verified, and it can be a promising 3D imaging tool in future scientific and industrial applications.


Author(s):  
Yuta Mitobe

UAVs have been considered as one of the most powerful tools for coastal monitoring. 3D Topography of sandy beaches can be obtained with automatic flight of single UAV and 3D shape reconstruction technique. Furthermore, UAVs have been utilized for wave monitoring (Holman et al., 2017) as the video images or a series of still images from aerial cameras enable us to observe wave propagations from higher viewpoints. Although there are some proposed techniques to extract wave celerity and direction from the aerial images by UAV, there doesn't seem to be enough trials to obtain wave height, which is one of the most important parameters to consider coastal problems such as beach morphological changes. In this study, stereo image analysis for 3D shape reconstruction was applied to stereo image pairs by two UAVs as a test of the applicability of the existing stereo measurement technique and also possibility of 3D wave deformation measurement in field.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/QZBAwj5RIi4


2021 ◽  
pp. 102228
Author(s):  
Xiang Chen ◽  
Nishant Ravikumar ◽  
Yan Xia ◽  
Rahman Attar ◽  
Andres Diaz-Pinto ◽  
...  

Author(s):  
Riccardo Spezialetti ◽  
David Joseph Tan ◽  
Alessio Tonioni ◽  
Keisuke Tateno ◽  
Federico Tombari

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