AN IMAGE PROCESSING MEASUREMENT ON SPATIAL FREQUENCY DOMAIN

Tsunehiko Nakanishi, Kozo Taguchi

Abstract

A measurement system of vehicle speed us-ing video camera and its brightness analysis is proposed on this paper. The blur is paid attention above all. Since a blur on an image can be measured by the frequency analysis, the possibility to measure speed of a moving object by using a blur image is considered. However because of partial brightness noise, the object length components are included other than the blur component in the information of moving speed, the some filters are introduced on the brightness domain and frequency domain to eliminate unnecessary components. It was possible to separate clearly between speed component and unnecessary length components, and the possibility to measure speed can be found.

Keywords

spatial frequency, image processing, non-contact measurement

Download

IMEKO-TC7-2004-016.pdf

DOI

-

IMEKO TC

TC7 - Measurement Science

Back to the proceedings