single-rb.php

JRM Vol.8 No.2 pp. 136-143
doi: 10.20965/jrm.1996.p0136
(1996)

Paper:

Apparent Temperature Patterns Superposed on Thermal Infrared Images and Their Removal

Minoru Inamura

Department of Electronic Engineering, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376 Japan

Received:
November 24, 1995
Accepted:
December 10, 1995
Published:
April 20, 1996
Keywords:
Remote sensing, Mixel, Multispectral image, Data fusion, Thermal radiation compensation
Abstract

A thermal infrared image is a visualized image of the thermal energy radiated from an object. Thermal radiation energy is dependent on the absolute temperature and the effective emissivity of an object, so that a thermal infrared image does not give the temperature distribution of an object but, rather, is a superimposed image of, so to speak, the temperature pattern and the emissivity pattern. In other words, a emissivity pattern is an apparent temperature pattern superimposed on a true temperature pattern. However, this paper points out that a thermal infrared image obtained with a sensor having an instantaneously large field of view, like a remotely sensed image, has additionally a third pattern due to the size of the field of view superimposed and that this appears as an apparent temperature change on the thermal infrared image. Moreover, the paper stresses the fact that in order to obtain correct information on temperature, it is necessary to remove these patterns and, at the same time, points out that these can be removed if effective use is made of visible, multispectral images.

Cite this article as:
Minoru Inamura, “Apparent Temperature Patterns Superposed on Thermal Infrared Images and Their Removal,” J. Robot. Mechatron., Vol.8, No.2, pp. 136-143, 1996.
Data files:

*This site is desgined based on HTML5 and CSS3 for modern browsers, e.g. Chrome, Firefox, Safari, Edge, Opera.

Last updated on Oct. 15, 2021