Study on Digital Earthquake-Before Damage Evaluation

Abstract eng:
Buildings digital auxiliary classification, summation of different kinds of buildings area, for earthquake-before damage evaluation investigation, by integrated application of RS (Remote Sensing) and DPS (Digital Photogrammetry System) and otherwise digital method are studied. Two kinds of buildings digital auxiliary classification methods for earthquake-before damage evaluation have been used. If there are remote sensing image stereo pairs in the evaluated area, DPS can be used. A number of DSM (digital surface models) of three-dimensional structures and DEM can be obtained. There is another earthquake-before damage evaluation survey method that buildings height are calculated automatically by buildings shadows in remote sensing image. Buildings can be aided classified by height. According to formulas of aerial survey, buildings’ height can be calculated by the shadows. The buildings shadows can be picked up by a series of RS image transformations. The area summation of different kind of buildings can be obtained by GIS. Digital earthquake-before damage evaluation, which combines digital technology with experience and statistical evaluation, is faster than traditional methods.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket