WIT Press


On The Two Ways For The Computing Of The Fire Front Positions And The Rate Of Spread

Price

Free (open access)

Paper DOI

10.2495/FIVA080011

Volume

119

Pages

10

Page Range

3 - 12

Published

2008

Size

776 kb

Author(s)

K. Chetehouna, I. Zarguili, O. Séro-Guillaume, F. Giroud & C. Picard

Abstract

The aim of this paper is to propose two methods for the identification of the fire front positions and the rate of spread in order to validate the first one by the second method. The first technique is based on the heat fluxes measured by specific thermal sensors and the use of the inverse method. The second one uses an image processing technique to obtain the fire front positions in pixels. The real positions in the propagation zone are determined using a matrix of passage calculated by applying the simple direct linear transformation (DLT) algorithm. The two methods give promising results and show that the thermal sensor technique can be validated by the image processing method. Keywords: heat flux sensor, flame model, image processing, fire front positions, rate of spread, flame characteristics. 1 Introduction Because of their geographical location and their climatic conditions, countries such as Spain, Portugal, Italy, France and Greece are the Member States of the European Union most exposed to forest fires.

Keywords

heat flux sensor, flame model, image processing, fire front positions, rate of spread, flame characteristics.