Detection of Slope Failures Including Shadow Area Using High Resolution Satellite Images.

Shadow detection in colour high-resolution satellite images

Image shadow segmentation has become a major issue in satellite remote sensing because of the recent commercial availability of high-resolution images. Detecting shadows is important for successfully carrying out applications such as change detection, land monitoring, object recognition, scene reconstruction, colour correction, etc. This paper presents a simple and effective procedure to segmen...

Detection of coral bleaching using high spatial resolution satellite images

Recent dramatic bleaching events on coral reefs have enhanced the need for global environmental monitoring. This paper investigates the value of present high spatial resolution satellites to detect coral bleaching using a change detection technique. We compared an IRS LISS-III image taken during the 1998 bleaching event in Belize to images taken before the bleaching event. The sensitivity of th...

Multi Resolution Fuzzy Segmentation of Satellite Images

Damage detection in earthquake disasters using high-resolution satellite images

This paper highlights the usefulness and accuracy of high-resolution satellite images in damage detection after the occurrence of natural disasters. A strong earthquake struck the city of Bam in the southeast Iran on 26 December, 2003 and it brought massive destruction to the city and its surrounding rural areas. IKONOS and QuickBird (QB), high-resolution optical satellites, captured clear imag...

Object-based Forest Change Detection Using High Resolution Satellite Images

An object-based approach for forest disaster change detection using High Resolution (HR) satellite images is proposed. An automatic feature selection process is used to optimize image segmentation via an original calibration-like procedure. A multitemporal classification then enables the separation of wind-fall from intact areas based on a new descriptor that depends on the level of fragmentati...