High resolution fire hazard index based on satellite images

A New Structural Matching Method Based on Linear Features for High Resolution Satellite Images

  Along with commercial accessibility of high resolution satellite images in recent decades, the issue of extracting accurate 3D spatial information in many fields became the centre of attention and applications related to photogrammetry and remote sensing has increased. To extract such information, the images should be geo-referenced. The procedure of georeferencing is done in four main steps...

Multi Resolution Fuzzy Segmentation of Satellite Images

Investigation of forest fire hazard areas in Golestan province based on fire risk system index (FRSI) using the technique (GIS)

Abstract  Fire in natural resources is one of the crises that causes irreparable damage to ecosystems and the environment every year. The purpose of this research is to attempt to study areas of risk aversion and to prepare a map of forest fire hazard area by integrating topographic data and other additional information from a GIS system for Golestan province. In order to carry out this resear...

An Index-based Shadow Extraction Approach on High-resolution Images

Focusing on high-resolution satellite images, the paper proposed a method for shadow detection that based on the object-oriented method and the characteristic components. The components such as the color invariant C3, the brightness I, the first principal component PC1 and RATIOb_nir were computed by analyzing the spectral feature of shadows to highlight the shadow areas in the images. For the ...

A Fuzzy-based Contrast Enhancement for High Resolution Satellite Images

Many conventional contrast enhancement techniques adopt a global approach to enhance the image. However, it is usually difficult to enhance all land cover classes appearing in the satellite image using these approaches, because local contrast information and details may be lost in the dark and bright areas. In this study, a three-stage algorithm based on fuzzy set theory is proposed to deal wit...