Results 1 to 10 of about 222,275 (261)

Measurement Accuracy Of Iterative Reconstructions With Limited Xct Data For Dimensional Measurements

open access: yese-Journal of Nondestructive Testing
Iterative Reconstruction (IR) algorithms can reconstruct X-ray Computed Tomography (XCT) data with high image quality and accuracy with limited data, leading to reduced acquisition times.
Nishitha Ravichandran   +2 more
doaj   +2 more sources

Error analysis and planning accuracy for dimensional measurement in active vision inspection [PDF]

open access: yesIEEE Transactions on Robotics and Automation, 1998
This paper discusses the effect of spatial quantization errors and displacement errors on the precision dimensional measurements for an edge segment. Probabilistic analysis in terms of the resolution of the image is developed for 2D quantization errors. Expressions for the mean and variance of these errors are developed.
Christopher C. Yang   +2 more
openaire   +6 more sources

Accuracy Assessment for the Three-Dimensional Coordinates by High-Speed Videogrammetric Measurement [PDF]

open access: yesJournal of Electrical and Computer Engineering, 2018
High-speed CMOS camera is a new kind of transducer to make the videogrammetric measurement for monitoring the displacement of high-speed shaking table structure.
Xianglei Liu, Yi Tang, Jing Ma
doaj   +3 more sources

Magnetic Resonance Imaging-Based Volumetric Analysis and Its Relationship to Actual Breast Weight [PDF]

open access: yesArchives of Plastic Surgery, 2013
BackgroundPreoperative volume assessment is useful in breast reconstruction. Magnetic resonance imaging (MRI) and mammography are commonly available to reconstructive surgeons in the care of a patient with breast cancer.
Anna Yoo, Kyung Won Minn, Ung Sik Jin
doaj   +3 more sources

Linear dimensional change of edentulous models made of high-density laboratory silicones at different storage times

open access: yesRGO: Revista Gaúcha de Odontologia, 2023
Objective: To evaluate the dimensional change of edentulous models made of high density laboratory silicones at different storagetimes. Methods: A metallic master model simulating an edentulous maxilla was used.
Ana Paula Lima Guidi DAMASCENO   +5 more
doaj   +1 more source

Extended-pour and conventional alginates: effect of storage time on dimensional accuracy and maintenance of details

open access: yesDental Press Journal of Orthodontics, 2021
Objective: This study aimed to evaluate the dimensional stability and maintenance of details of conventional and high stability alginates up to 5-day storage.
Sandro Basso BITENCOURT   +7 more
doaj   +1 more source

Three‐dimensional ultrasound: accuracy of distance and volume measurements [PDF]

open access: yesUltrasound in Obstetrics & Gynecology, 1996
AbstractThe aim of this study was to evaluate the accuracy of three‐dimensional ultrasound distance and volume measurements using a commercially available three‐dimensional ultrasound scanner. Sixty‐two distance measurements were performed twice on an ultrasound tissue‐mimicking phantom located in a water bath.
M, Riccabona   +2 more
openaire   +2 more sources

Comparative Analysis of Dimensional Accuracy of Two Types of Silicone Impression Materials: Optosil and Elite-HD [PDF]

open access: yesJournal of Dental Materials and Techniques, 2017
Statement of the Problem: Understanding about impression materials, their properties, uses and manipulation can guide operators towards having more successful restorations.
Amini Parviz   +2 more
doaj   +1 more source

Influence of Connecting Two Standalone Mobile Three-Dimensional Scanners on Accuracy Comparing with a Standard Device in Facial Scanning

open access: yeseJournal of Oral Maxillofacial Research, 2017
Objectives: In this study is investigated if bundling of two scanners leads to better accuracy in recording faces than a standard face-scanning device. Material and Methods: In a group of 28 volunteers, two test specimens were attached to their faces:
Ali Modabber   +9 more
doaj   +1 more source

In vitro Accuracy of Dental 3D Printers for the Fabrication of Laminate Veneers with Different Preparation Designs [PDF]

open access: yesJournal of Dentistry
Background: The adoption of three-dimensional (3D) printing in dentistry for prosthetic workflows is increasing. A crucial step in the indirect fabrication of laminate veneers involves creating accurate master casts from digital impressions.
Mohammad Amin Bafandeh   +5 more
doaj   +1 more source

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