Mapping local density of young Eucalyptus plantations by individual tree detection in high spatial resolution satellite images

Mapping local density of young Eucalyptus plantations by individual tree detection in high spatial resolution satellite images

Local tree density may vary in young Eucalyptus plantations under the effects of environmental conditions or inadequate management, and these variations need to be mapped over large areas as they have a significant impact on the final biomass harvested. High spatial resolution optical satellite images have the potential to provide crucial information on tree density at an affordable cost for fo...

Detection of Tree Crowns in Very High Spatial Resolution Images

The requirements for advanced knowledge on forest resources have led researchers to de‐ velop efficient methods to provide detailed information about trees. Since 1999, orbital re‐ mote sensing has been providing very high resolution (VHR) image data. The new generation of satellite allows individual tree crowns to be visually identifiable. The in‐ crease in spatial resolution has also had a pr...

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

Mapping Road Traffic Conditions Using High Resolution Satellite Images

Construction, development and maintenance of the road network are central activities for several public authorities. In cooperation with the Norwegian road authorities, we have developed an approach for automated vehicle detection and generation of traffic statistics from QuickBird images. Satellite surveillance serves several obvious advantages over the methods that are being used today, which...