Results 21 to 30 of about 514,857 (263)
On-Line Flatness Measurement in the Steelmaking Industry
Sensors, 2013 Shape is a key characteristic to determine the quality of outgoing flat-rolled products in the steel industry. It is greatly influenced by flatness, a feature to describe how the surface of a rolled product approaches a plane.
Rubén Usamentiaga +2 more
doaj +1 more source
Design and Measurement of a Dual FBG High-Precision Shape Sensor for Wing Shape Reconstruction
Sensors, 2021 FBG shape sensors based on soft substrates are currently one of the research focuses of wing shape reconstruction, where soft substrates and torque are two important factors affecting the performance of shape sensors, but the related analysis is not ...
Huifeng Wu +5 more
doaj +1 more source
Measuring Shape Circularity [PDF]
, 2008 In this paper we define a new circularity measure. The new measure is easy to compute and, being area based, is robust with respect to noise. It ranges over (0,1] and gives the measured circularity equal to 1 if and only if the measured shape is a circle. The new measure is invariant with respect to translations, rotations and scaling.
Joviša Žunić, Kaoru Hirota
openaire +1 more source
Wireless Single Cellular Coverage Boundary Models
IEEE Access, 2016 To satisfy the requirement of high wireless transmission rate from user terminals, the multi-cell cooperative communication is an important solution for cellular networks.
Xiaohu Ge +6 more
doaj +1 more source
Gear Shape Parameter Measurement Using a Model-Based Scanning Multi-Distance Measurement Approach
Sensors, 2020 To reduce wind turbine failures by defective drive trains, deviations in the geometry of large gears (diameter ≳ 1 m) must be extensively determined with single-digit micrometer uncertainties. Fixed measuring volumes limit standard measuring methods like
Marc Pillarz +2 more
doaj +1 more source
Single-Shot Phase Measuring Profilometry Based on Quaternary Grating Projection
Applied Sciences, 2021 In this paper, we propose a new single-shot three-dimensional (3D) measuring method based on quaternary grating projection. In traditional binary grating phase measuring profilometry (PMP), a multi-step or color fringe pattern are usually used to extract
Chaozhi Yang, Yiping Cao, Xiuzhang Huang
doaj +1 more source
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010 This paper describes the influences of anisotropy found in the elastic modulus of monocrystalline silicon wafers on the measurement accuracy of the three-point-support inverting method which can measure the warp and thickness of thin large panels ...
Yukihiro ITO +2 more
doaj +1 more source
Robust Method for Position Measurement of Vertex of Polyhedron Using Shape from Focus
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010 A robust measurement method for measuring the vertex position of a small polyhedron using 3D image processing is proposed. The shape from focus method is applied for obtaining 3D positions of surfaces of the polyhedron.
Takashi HARADA
doaj +1 more source
Ordinal-Measure Based Shape Correspondence [PDF]
EURASIP Journal on Advances in Signal Processing, 2002 Summary: We present a novel approach to shape similarity estimation based on distance transformation and ordinal correlation. The proposed method operates in three steps: object alignment, contour to multilevel image transformation, and similarity evaluation.
Cheikh, Faouzi Alaya +4 more
openaire +2 more sources
Development of microscopic shape measuring system using iterative photometric stereo techniques
Nihon Kikai Gakkai ronbunshu, 2016 In the manufacturing process of machine products, it is important to automate the manual visual inspection in detecting microscopic surface defects in order to improve the efficiency and eliminate human errors as well.
Harutaka IMOTO +4 more
doaj +1 more source