Online Crack Detection of Highly Curved Spiral Cylindrical Coils

D Yi, L Kong, J Xie, C Huang - IEEE Transactions on Industrial …, 2023 - ieeexplore.ieee.org
Many vision-based methods for defect detection have been proposed to replace inefficient
manual inspection. However, due to the complex shape and high degree of freedom …

A hybrid defect detection method for compact camera lens

CF Chang, JL Wu, KJ Chen… - Advances in Mechanical …, 2017 - journals.sagepub.com
Production technology has increased rapidly with the development of industrial technology.
Conventional human visual inspection is insufficient for conducting quality control under this …

[PDF][PDF] Development of annular optics for the inspection of surface defects on screw threads using ray tracing simulation

J Lee, YE Lim, K Park, SW Ra - Journal of the Korean Society for …, 2016 - koreascience.kr
This study aims to develop a vision inspection system for screw threads. To inspect external
defects in screw threads, the vision inspection system was developed using front light …

Optical Simulation of Omnidirectional Inspection System for Screw Threads

K Park, CH Lee, SW Ra - Key Engineering Materials, 2014 - Trans Tech Publ
Machine vision systems have been used in the automatic inspection of screw threads using
backlight illumination for the inspection of the screw thread profiles. In this study, an …

[PDF][PDF] Circular path generation for toroidal cavity inspection

L Bath, M Dammann, T Schüppstuhl - Annals of Scientific Society …, 2020 - library.oapen.org
Borescopes are a widely used technology for optically inspecting machinery from the inside.
Recent solutions include enhanced metrology techniques for acquiring image data in high …

A stitching algorithm for automated surface inspection of rotationally symmetric components

T Schlagenhauf, T Brander, J Fleischer - CIRP Journal of Manufacturing …, 2021 - Elsevier
This paper provides a novel approach to stitching surface images of rotationally symmetric
parts. It presents a process pipeline that uses a feature-based stitching approach to create a …

Bobbin coil probe with sensor arrays for imaging and evaluation of longitudinal cracks inside aluminum tubes

W Li, G Chen, X Yin, J Ge, W Jiang… - IEEE Sensors …, 2018 - ieeexplore.ieee.org
Imaging and evaluation of inner-wall cracks are significant for the integrity management of
aluminum tubes. In this paper, a novel bobbin coil probe with sensor arrays is presented for …

Real-time forming error inspection system using computer vision for small-sized tubes

HS Kim, E Naranbaatar, SA Ahammad… - 2009 ICCAS …, 2009 - ieeexplore.ieee.org
Recently, there has been an increasing demand for computer-vision-based measurement
and inspection at the production line. So far lots of inspection processes are carried out by …

Omnidirectional Imaging Sensor Based on Conical Mirror for Pipelines

P Zhang, F Zhou, X Wang, S Wang, Z Song - Optics and Lasers in …, 2024 - Elsevier
As a sensor carrier and directional constraint equipment, precision pipelines are prone to
significant damage to the inner surface over time, posing safety hazards. To implement the …

Automated optical inspection system for O-ring based on photometric stereo and machine vision

FS Yang, CC Ho, LC Chen - Applied Sciences, 2021 - mdpi.com
This research developed an AOI (automated optical inspection) system for the O-Ring
inspection. First, an AOI system was implemented to detect surface scratches, flow marks …