Results 131 to 140 of about 935,449 (339)

Improved YOLOv5 Network for High-Precision Three-Dimensional Positioning and Attitude Measurement of Container Spreaders in Automated Quayside Cranes

open access: yesSensors
For automated quayside container cranes, accurate measurement of the three-dimensional positioning and attitude of the container spreader is crucial for the safe and efficient transfer of containers.
Yujie Zhang   +5 more
doaj   +1 more source

Comparison of Three Dimensional Measurement Accuracy Using Stereo Vision [PDF]

open access: yes, 2011
A Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in Electronic Systems Engineering, University of Regina. vii, 113 l. The stereo vision system has been widely used in recent years.
openaire  

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Fast and high-accuracy three-dimensional shape measurement using intermediate-bit projection

open access: yesOptics Express
The digital light processing (DLP) projector has been widely used in fringe projection profilometry (FPP). The bit depth of the projected fringes is mostly 8-bit or 1-bit to pursue higher measuring accuracy or speed. In this paper, a bit error model is established to evaluate phase quality of the projected fringes with different bit depths.
Zhoujie Wu   +4 more
openaire   +2 more sources

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Effect of Spatial Position in the Field of View on Dimensional Changes in Cone Beam Computed Tomography

open access: yesFrontiers in Dentistry, 2017
Objectives: This study aimed to assess the relation between dimensional changes and object location in the field of view (FOV) using cone beam computed tomography (CBCT).
Mehrdad Panjnoush   +2 more
doaj  

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

3D imaging for telemedical use

open access: yesInternational Journal of Integrated Care, 2015
Line Bisgaard Jørgensen   +2 more
doaj   +3 more sources

Accuracy Analysis of Three-dimensional Articular- eminence Inclination Measuring Methods

open access: yesJournal of dental research, 2014
Objective: Due to the complex anatomical structure and function of the human temporomandibular joint (TMJ) different measurement methods were developed and introduced in TMJ. Therefore, the aim of this study was to determine and compare the accuracy between different methods used for the articular- eminence inclination (AEI) measurements.
Kranjčić, Josip   +5 more
openaire   +2 more sources

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