Results 21 to 30 of about 460,480 (261)

3D Shape Reconstruction of 3D Printed Transparent Microscopic Objects from Multiple Photographic Images Using Ultraviolet Illumination

Micromachines, 2018
We propose and demonstrate a simple, low-cost, three-dimensional (3D) shape acquisition method for transparent 3D printed microscopic objects. Our method uses ultraviolet (UV) illumination to obtain high-contrast silhouette images of transparent 3D ...
Keishi Koyama, Masayuki Takakura, Taichi Furukawa, Shoji Maruo   +3 more
doaj   +1 more source

3D Shape Classification Using a Single View

IEEE Access, 2020
View-based 3D shape classification is widely used in machine vision, information retrieval and other fields. However, there are two problems in current methods.
Bo Ding, Lei Tang, Zheng Gao, Yongjun He
doaj   +1 more source

SIMPLE ROOM SHAPE MODELING WITH SPARSE 3D POINT INFORMATION USING PHOTOGRAMMETRY AND APPLICATION SOFTWARE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In this paper, we propose an automated technique for creating a simplified 3D structure shape model of indoor environments from the sparse 3D point information provided by the photogrammetric method.
S. Hirose
doaj   +1 more source

Joint Image and 3D Shape Part Representation in Large Collections for Object Blending

IEEE Access, 2020
We propose a new approach to perform object shape retrieval from images, it can handle the shape of the part of the object and combine parts from different sources to find a different 3D shape. Our method creates a common representation for images and 3D
Adrian Penate-Sanchez, Lourdes Agapito
doaj   +1 more source

Camera Motion Agnostic Method for Estimating 3D Human Poses

Sensors, 2022
Although the performance of 3D human pose and shape estimation methods has improved considerably in recent years, existing approaches typically generate 3D poses defined in a camera or human-centered coordinate system. This makes it difficult to estimate
Seong Hyun Kim, Sunwon Jeong, Sungbum Park, Ju Yong Chang   +3 more
doaj   +1 more source

3D Shape Generation via Variational Autoencoder with Signed Distance Function Relativistic Average Generative Adversarial Network

Applied Sciences, 2023
3D shape generation is widely applied in various industries to create, visualize, and analyse complex data, designs, and simulations. Typically, 3D shape generation uses a large dataset of 3D shapes as the input.
Ebenezer Akinyemi Ajayi, Kian Ming Lim, Siew-Chin Chong, Chin Poo Lee   +3 more
doaj   +1 more source

HUMANNET—A Two-Tiered Deep Neural Network Architecture for Self-Occluding Humanoid Pose Reconstruction

Sensors, 2021
Majority of current research focuses on a single static object reconstruction from a given pointcloud. However, the existing approaches are not applicable to real world applications such as dynamic and morphing scene reconstruction.
Audrius Kulikajevas, Rytis Maskeliunas, Robertas Damasevicius, Rafal Scherer   +3 more
doaj   +1 more source

Bioinspired thermadapt shape-memory polymer with light-induced reversible fluorescence for rewritable 2D/3D-encoding information carriers

Nature Communications, 2023
Fluorescent materials have attracted widespread attention for information encryption owing to their stimuli-responsive color-shifting. However, the 2D encoding of fluorescent images poses a risk of information leakage.
Jinhui Huang, Yue Jiang, Qiuyu Chen, Hui Xie, Shaobing Zhou   +4 more
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Microstructural evolution and mechanical performance of nano-Nb-modified AlSi10Mg alloy fabricated by laser powder bed fusion

Journal of Materials Research and Technology
In this study, nano-Nb-modified AlSi10Mg composites were fabricated using laser powder bed fusion (LPBF). The effects of Nb addition on the microstructure and mechanical properties of the AlSi10Mg alloy were systematically investigated. Compared with the
Hao Luo, Kefeng Li, Cunliang Pan, Xiaoqiang Li, Junhao Zhao, Zun Li, Keying Liu, Tao Zhang   +7 more
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Medial Axis for the Cortical Representation of 3D Shape

i-Perception, 2012
Representation of shape is a fundamental problem in vision science. Neurophysiological studies of macaque have reported that neurons in the primary visual cortex (V1) respond to Medial Axis (MA) of 2D surface, and that those in higher cortex (IT) respond
Wei Qiu, Ko Sakai
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