Results 31 to 40 of about 305,000 (317)

3D reconstruction of tensors and vectors [PDF]

, 2005
Here we have developed formulations for the reconstruction of 3D tensor fields from planar (Radon) and line-integral (X-ray) projections of 3D vector and tensor fields. Much of the motivation for this work is the potential application of MRI to perform diffusion tensor tomography.
Defrise, Michel, Gullberg, Grant T.
openaire   +3 more sources

Neural 3D reconstruction from sparse views using geometric priors

Computational Visual Media, 2023
Sparse view 3D reconstruction has attracted increasing attention with the development of neural implicit 3D representation. Existing methods usually only make use of 2D views, requiring a dense set of input views for accurate 3D reconstruction.
Tai-Jiang Mu, Hao-Xiang Chen, Jun-Xiong Cai, Ning Guo   +3 more
doaj   +1 more source

Application of three-dimensional reconstruction with a Hisense computer-assisted system in upper pancreatic lymph node dissection during laparoscopic-assisted radical gastrectomy

Asian Journal of Surgery, 2021
Background/objective: To investigate the feasibility of three-dimensional (3D) reconstruction with an interactive Hisense computer-assisted system (CAS) for preoperative planning and intraoperative guidance during laparoscopic-assisted upper pancreatic ...
Hao Liu, Feifei Wang, Bo Liu, Ziwen Zheng, Junjiang Zhao, Jian Zhang   +5 more
doaj   +1 more source

Challenges and Prospects of Digital Core-Reconstruction Research

Geofluids, 2019
The simulation of various rock properties based on three-dimensional digital cores plays an increasingly important role in oil and gas exploration and development.
Linqi Zhu, Chong Zhang, Chaomo Zhang, Xueqing Zhou, Zhansong Zhang, Xin Nie, Weinan Liu, Boyuan Zhu   +7 more
doaj   +1 more source

A Multi-Perspective 3D Reconstruction Method with Single Perspective Instantaneous Target Attitude Estimation

Remote Sensing, 2019
Due to the limited information of two-dimensional (2D) radar images, the study of three-dimensional (3D) radar image reconstruction has received significant attention.
Dan Xu, Mengdao Xing, Xiang-Gen Xia, Guang-Cai Sun, Jixiang Fu, Tao Su   +5 more
doaj   +1 more source

GANana: Unsupervised Domain Adaptation for Volumetric Regression of Fruit

Plant Phenomics, 2021
3D reconstruction of fruit is important as a key component of fruit grading and an important part of many size estimation pipelines. Like many computer vision challenges, the 3D reconstruction task suffers from a lack of readily available training data ...
Zane K. J. Hartley, Aaron S. Jackson, Michael Pound, Andrew P. French   +3 more
doaj   +1 more source

Semi-automated stereoradiographic upper limb 3D reconstructions using a combined parametric and statistical model: a preliminary study [PDF]

, 2011
PURPOSE: Quantitative assessment of 3D clinical indices may be crucial for elbow surgery planning. 3D parametric modeling from bi-planar radiographs was successfully proposed for spine and lower limb clinical investigation as an alternative for CT-scan ...
CLAIREMIDI, Alain, AUBERT, Benjamin, DE GUISE, Jacques, C. Fontaine, B. Aubert, SKALLI, Wafa, L. V. P. C. Lima, J. de Guise, LIMA, Lucas, FONTAINE, Christian, GUÉRARD, Sandra, A. Clairemidi, CHAÏBI, Yasmina, S. Guerard, LEBAILLY, Fréderic, F. Lebailly, W. Skalli, Y. Chaibi   +17 more
core   +1 more source

Feasibility Study of Intelligent Three-Dimensional Accurate Liver Reconstruction Technology Based on MRI Data

Frontiers in Medicine, 2022
Intelligent three-dimensional (3D) reconstruction technology plays an important role in the diagnosis and treatment of diseases. It has been widely used in assisted liver surgery.
Shaodong Cao, Huan Li, Suyu Dong, Zhenxuan Gao   +3 more
doaj   +1 more source

An evaluation of PlanetScope images for 3D reconstruction and change detection – experimental validations with case studies

GIScience & Remote Sensing, 2022
The PlanetScope satellite constellation has over 130 Dove satellites running 24/7, which collect weekly and even daily images globally at 3–5 m resolution.
Debao Huang, Yang Tang, Rongjun Qin
doaj   +1 more source

Database-Assisted 3D Reconstruction and Printing of a Mechanical Key From a Single Photograph

IEEE Access, 2021
Reverse engineering is a powerful tool for duplicating real objects from data acquired by tracking systems, industrial X-ray computed tomography (CT), laser scanners, and image captures.
Yicang Huang, Yikai Zhang, Hui Li, Shengnan Shen, Feng Li   +4 more
doaj   +1 more source