scholarly journals A study on measurement of internal voids in impression material using a digital image analyzer. Part 1. Investigation of the measurement system of a digital image analyzer.

1988 ◽  
Vol 32 (1) ◽  
pp. 28-36
Author(s):  
Makoto Sakai ◽  
Mutsuo Yamauchi ◽  
Joji Kawano
Keyword(s):  
Measurement System ◽  
Digital Image ◽  
Image Analyzer ◽  
Impression Material

scholarly journals Scanning the Sonneberg Plate Archive by DIA

1994 ◽  
Vol 161 ◽  
pp. 183-184
Author(s):  
P. Kroll ◽  
P. Neugebauer
Keyword(s):  
Digital Image ◽  
Low Cost ◽  
Image Analyzer ◽  
Line Scanner

DIA (Digital Image Analyzer) is a new dedicated and low cost CCD line scanner, which has been invented at Sonneberg Observatory in collaboration with the Institute for Theoretical Astrophysics at Tübingen for scanning selected fields of the Sonneberg Plate Archive.

A Digital Image-Based Deformation Measurement System for Triaxial Tests

2012 ◽  
Vol 35 (2) ◽  
pp. 103821 ◽  
Author(s):  
L. D. Suits ◽  
T. C. Sheahan ◽  
A. R. Bhandari ◽  
W. Powrie ◽  
R. M. Harkness
Keyword(s):  
Measurement System ◽  
Digital Image ◽  
Deformation Measurement ◽  
Triaxial Tests

Study on CCD Measurement System Based on Image Processing

2012 ◽  
Vol 538-541 ◽  
pp. 2143-2146
Author(s):  
Wen Hui Zhao ◽  
Zhen Yun Duan ◽  
Ping Zhao ◽  
Wen Zhen Zhao
Keyword(s):  
Image Processing ◽  
Measurement System ◽  
Digital Image ◽  
Image Acquisition ◽  
High Accuracy ◽  
Software System

The measurement system based on industry CCD and image processing was established to measure 2D sizes of parts. The CCD sensors, lenses, illumination and image acquisition modes were chosen to establish hardware part, according to the requirement of views and precision. The software system was developed to extract the edge of the part from the digital image and transform it to a polynomial. The actual sizes of the part were measured with relative comparison calibrating method. Tests and analyses show that it is an untouched, automatic 2D Measurement system with high accuracy.

Sign in / Sign up

Export Citation Format

Share Document