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Proceedings Paper

Real-time scheme of online measurement of screw-thread steel bars
Author(s): Bingrong Zhang; Zhiying Liu; Wenyi Chen
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Paper Abstract

In this paper we proposed a scheme of on-line measurement of screw-thread steel bar in real-time, which its operation principle is discussed in detail. With the aid of real-time, we have taken the following procedures: 1) By means of self- adjusting threshold voltage-level, the binary image is obtained through hardware. 2) By using run-length coding, the binary image is compressed furthermore and the sum of data to be processed is greatly reduced. 3) A special organization of the coding data, as well as a flexible employment of a novel dual-port RAM, make the CPU of computer capable of reading and saving the data directly from the storage buffer.

Paper Details

Date Published: 3 October 1996
PDF: 3 pages
Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); doi: 10.1117/12.253027
Show Author Affiliations
Bingrong Zhang, Shandong Univ. of Technology (China)
Zhiying Liu, Shandong Univ. of Technology (China)
Wenyi Chen, Shandong Univ. of Technology (China)

Published in SPIE Proceedings Vol. 2899:
Automated Optical Inspection for Industry
Frederick Y. Wu; Shenghua Ye, Editor(s)

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