scholarly journals 3D Modeling of Outdoor Environments by Integrating Omnidirectional Range and Color Images

2005 ◽  
Author(s):  
T. Asai ◽  
M. Kanbara ◽  
N. Yokoya
Keyword(s):  
3D Modeling ◽  
Color Images ◽  
Outdoor Environments

scholarly journals Scale-Aware Multi-View Reconstruction Using an Active Triple-Camera System

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6726
Author(s):  
Hang Luo ◽  
Christian Pape ◽  
Eduard Reithmeier
Keyword(s):  
Measurement System ◽  
3D Modeling ◽  
Reconstruction Method ◽  
Single Shot ◽  
Camera System ◽  
Photographic Evidence ◽  
Outdoor Environments ◽  
Processing Module ◽  
Synthetic Datasets ◽  
Fusion Scheme

This paper presents an active wide-baseline triple-camera measurement system designed especially for 3D modeling in general outdoor environments, as well as a novel parallel surface refinement algorithm within the multi-view stereo (MVS) framework. Firstly, the pre-processing module converts the synchronized raw triple images from one single-shot acquisition of our setup to aligned RGB-Depth frames, which are then used for camera pose estimation using iterative closest point (ICP) and RANSAC perspective-n-point (PnP) approaches. Afterwards, an efficient dense reconstruction method, mostly implemented on the GPU in a grid manner, takes the raw depth data as input and optimizes the per-pixel depth values based on the multi-view photographic evidence, surface curvature and depth priors. Through a basic fusion scheme, an accurate and complete 3D model can be obtained from these enhanced depth maps. For a comprehensive test, the proposed MVS implementation is evaluated on benchmark and synthetic datasets, and a real-world reconstruction experiment is also conducted using our measurement system in an outdoor scenario. The results demonstrate that (1) our MVS method achieves very competitive performance in terms of modeling accuracy, surface completeness and noise reduction, given an input coarse geometry; and (2) despite some limitations, our triple-camera setup in combination with the proposed reconstruction routine, can be applied to some practical 3D modeling tasks operated in outdoor environments where conventional stereo or depth senors would normally suffer.

A Model Is Worth 1,000 Pictures: Applications of 3D-Modeling in Skull Base Surgery Neuroanatomy Education

2020 ◽  
Author(s):  
Christopher S. Graffeo ◽  
Avital Perry ◽  
Lucas P. Carlstrom ◽  
Michael J. Link ◽  
Jonathan Morris
Keyword(s):  
Skull Base ◽  
3D Modeling ◽  
Skull Base Surgery

Path Loss Model in Crowded Outdoor Environments Considering Multiple Human Body Shadowing of Multipath at 4.7GHz and 26.4GHz

2019 ◽  
Vol E102.B (8) ◽  
pp. 1676-1688 ◽  
Author(s):  
Mitsuki NAKAMURA ◽  
Motoharu SASAKI ◽  
Wataru YAMADA ◽  
Naoki KITA ◽  
Takeshi ONIZAWA ◽  
...  
Keyword(s):  
Human Body ◽  
Path Loss ◽  
Loss Model ◽  
Path Loss Model ◽  
Outdoor Environments
Sign in / Sign up

Export Citation Format

Share Document