AN OBSERVATION METHOD OF MOVING OBJECTS ON FREQUENCY DOMAIN

Tsunehiko Nakanishi, Takeshi Fujisaki

Abstract

The indirect measurement methods like as image processing measurement are preferably used on the factory automation system because the complex data processing are requested on higher level measurement. On this case, the video system is regarded as the transducer, signal transmitter, signal conditioner and interface unit for a computer, and this system requires low costs by the mass production effect and has easiness of handling. On higher-level measurement, electric quantity must be changed to appropriate projective space though the electric quantity is directly used in the usual measurement such as time domain. The Fourier transformation is an example of the higher-level measurement; and is to change time domain to frequency domain. One of the frequency domain methods to measure object movement using image processing method is shown in this report.

Keywords

spatial frequency, image processing, non-contact measurement

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PWC-2003-TC7-031.pdf

DOI

-

IMEKO TC

TC7 - Measurement Science

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