Results 21 to 30 of about 176,543 (244)

Guided, Fusion-Based, Large Depth-of-field 3D Imaging Using a Focal Stack

open access: yesSensors, 2019
Three dimensional (3D) imaging technology has been widely used for many applications, such as human−computer interactions, making industrial measurements, and dealing with cultural relics.
Yuhao Xiao   +5 more
doaj   +1 more source

Three-dimensional shape and deformation measurement on complex structure parts

open access: yesScientific Reports, 2022
Stereo digital image correlation technique (stereo-DIC or 3D-DIC) has been widely used in three-dimensional (3D) shape and deformation measurement due to its high accuracy and flexibility.
Zhoujie Wu   +5 more
doaj   +1 more source

Development of Quick Three-Dimensional Shape Measurement Projection Mapping System Using a Whole-Space Tabulation Method

open access: yesApplied Sciences, 2019
A grating projection method is often used as a highly accurate 3D shape measurement method. A real-time 3D shape measurement system can also be applied to measure a wide and smooth curved surface, such as in sheet metal processing.
Sodai Suzuki   +4 more
doaj   +1 more source

Measuring 3D shape in orthodontics through geometric morphometrics [PDF]

open access: yesProgress in Orthodontics, 2017
Geometric morphometrics (GMM) has been traditionally applied to the field of biology to study developmental differentiations between species. Orthodontics deals with the shape and size of the face and its components. While several tools have been used to measure size, proportions, and relations between anatomical components, shape has been mainly ...
Huanca Ghislanzoni, Luis   +3 more
openaire   +7 more sources

A robot-driven automatic scribing method via three-dimensional measurement sensor

open access: yesFrontiers in Physics, 2022
The evaluation of the complex workpiece allowance and the scribing the datum line now extremely rely on manual operation. The manual operation is time-consuming and prone to misjudgment, and has a large blind area.
Hua Luo   +4 more
doaj   +1 more source

Vison-Based 3D Shape Measurement System for Transparent Microdefect Characterization

open access: yesIEEE Access, 2019
The main task of vision-based industrial defect inspection is to implement efficient non-contact visual quality control, i.e., to detect if there is a defect and to achieve an accurate 3D shape measurement of such a defect, and this kind of vision defect
Yuanlong Deng   +3 more
doaj   +1 more source

Spatial measurement method based on object shape and velocity information using past measurement information from 3D-LiDAR

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In this paper, we propose a spatial measurement method based on object geometry and velocity information using past measurement information from 3D-LiDAR.
Takumi SHIBUYA   +2 more
doaj   +1 more source

Complex Shape Measurement Using 3D Scanner

open access: yesJurnal Teknologi, 2012
Sistem Pemeriksaan Automatik biasanya bermula dengan teknik Reka bentuk Berbantukan Komputer (CAD) dan berakhir dengan janaan arahan mesin untuk menukarkan bahan mentah kepada produk akhir, memperolehi data tiga dimensi untuk membina model permukaan berparameter bagi tujuan analisis ralat, duplikasi atau memperbaiki objek tersebut.
Rahmita Wirza O.K. Rahmat   +2 more
openaire   +1 more source

A 3D foot shape feature parameter measurement algorithm based on Kinect2

open access: yesEURASIP Journal on Image and Video Processing, 2018
Accurate measurement of foot shape feature parameters is extremely important in the process of customized shoemaking. A 3D foot’s depth image collected by second-generation Kinect is used to propose a foot shape feature parameter measurement algorithm ...
Mo Wang   +5 more
doaj   +1 more source

Shape distortion analysis of drawing die by optical 3D scanning [PDF]

open access: yesMATEC Web of Conferences, 2019
The contribution dealing with analysis of drawing die shape distortion using optical 3D scanning. The wear of drawing die has a significant influence on the shape stability of the produced tubes.
Morovič Ladislav   +2 more
doaj   +1 more source

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