Complete 3D Foot Scanning System Using 360 Degree Rotational and Translational Laser Triangulation Sensors

Lee, Ju-Hwan; Lee, Min-jae; Park, Soon-Yong

doi:10.1007/s12555-020-0147-9

Cited by 9 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, their contact probes can possibly cause damage to the surface of the industrial component and wear on themselves. Non-contact measurement devices involve industrial CT [ 9 ] and technologies including laser triangulation [ 10 ], structured-light vision technology [ 11 , 12 ], binocular stereo vision technology [ 13 ] and photometric stereo vision technology [ 14 , 15 , 16 , 17 , 18 , 19 ]. They have the advantages of high efficiency, convenient operation, high degree of automation, no need for probe radius compensation and non-contact measurement of ultra-precision workpieces.…”

Section: Introductionmentioning

confidence: 99%

A High-Precision Multi-Beam Optical Measurement Method for Cylindrical Surface Profile

Zhou

Cai

et al. 2023

Micromachines

View full text Add to dashboard Cite

To automatically measure the surface profile of a cylindrical workpiece, a high-precision multi-beam optical method is proposed in this paper. First, some successive images for the cylindrical workpiece’s surface are acquired by a multi-beam angle sensor under different light directions. Then, the light directions are estimated based on the feature regions in the images to calculate surface normal vectors. Finally, according to the relationship of the surface normal vector and the vertical section of the workpiece’s surface, a depth map is reconstructed to achieve the curvature surface, which can be employed to measure the curvature radius of the cylindrical workpiece’s surface. Experimental results indicate that the proposed measurement method can achieve good measurement precision with a mean error of the curvature radius of a workpiece’s surface of 0.89% at a reasonable speed of 10.226 s, which is superior to some existing methods.

show abstract

Section: Introductionmentioning

confidence: 99%

A High-Precision Multi-Beam Optical Measurement Method for Cylindrical Surface Profile

Zhou

Cai

et al. 2023

Micromachines

View full text Add to dashboard Cite

show abstract

Computer-Generated Shoe Lasts Using 3D Scanned Data and Anthropometric Measurements

Seul

Viziteu

Mihai

et al. 2022

The 16th International Conference Interdisciplinarity in Engineering

View full text Add to dashboard Cite

Low-consumption stepper motor controller with real-time target position change responsiveness based on field programmable gate array

Shi,

Guo,

Wang

et al. 2024

Review of Scientific Instruments

View full text Add to dashboard Cite

In response to the demand for low resource consumption, parallel control, and real-time response to target position changes in precision measurement and manufacturing of multi-axis stepper motor controllers, this paper proposes a field programmable gate array-based method for generating trapezoidal velocity profiles and pulse generation, which can easily keep parallelism and independence during multi-axis control. By avoiding using multiplication and division, this controller not only reduces resource consumption but also enhances the pulse output frequency. To address the real-time responsiveness of the velocity profile generation algorithm to changes in the target position during the control process, the algorithm introduces a novel real-time comparative state transition logic for speed control, which makes it capable of adjusting the acceleration within a single clock cycle, enabling its application in scenarios that require higher levels of real-time performance. Finally, the designed controller is applied to a four-axis positioning system for performance validation.

show abstract

Complete 3D Foot Scanning System Using 360 Degree Rotational and Translational Laser Triangulation Sensors

Cited by 9 publications

References 15 publications

A High-Precision Multi-Beam Optical Measurement Method for Cylindrical Surface Profile

A High-Precision Multi-Beam Optical Measurement Method for Cylindrical Surface Profile

Computer-Generated Shoe Lasts Using 3D Scanned Data and Anthropometric Measurements

Low-consumption stepper motor controller with real-time target position change responsiveness based on field programmable gate array

Contact Info

Product

Resources

About