Change detection of buildings using an airborne laser scanner
نویسندگان
چکیده
Ž . This study employed an airborne laser scanner to detect changes of buildings by acquiring a digital surface model DSM data of urban areas. Simple comparison between DSM data sets acquired at different occasions successfully detected building changes without omission errors. A CCD array image simultaneously acquired with the DSM data was also automatically orthorectified with the DSM data and indicated to help revise the building database efficiently. q 1999 Elsevier Science B.V. All rights reserved.
منابع مشابه
An Improved Approach for Automatic Detection of Changes in Buildings
Automatic detection of buildings and changes in buildings from airborne laser scanner and image data is discussed. A new, improved method for change detection between an existing building map and building detection results has been developed. Corresponding building objects between the two datasets are found by analysing the overlaps of the buildings. Depending on the correspondences, change det...
متن کاملPotential of an Airborne Laser Scanner System for Change Detection of Urban Features and Orthoimage Development
The Kobe earthquake in 1995 demonstrated an urgent need of developing a change detection mapping system of buildings with high temporal accuracy to save people from damaged buildings. An airborne laser scanning system (ALSS) is considered to have the potential of meeting such a need of detecting building changes in 3D shape because of its capability of direct measurement of ground elevation and...
متن کاملExtension of an Automatic Building Extraction Technique to Airborne Laser Scanner Data Containing Damaged Buildings
Airborne laser scanning systems generate 3-dimensional point clouds of high density and irregular spacing. These data consist of multiple returns coming from terrain, buildings, and vegetation. The major difficulty is the extraction of object categories, usually buildings. In the field of disaster management, the detection of building damages plays an important role. Therefore, the question ari...
متن کاملAutomatic Detection of Buildings and Changes in Buildings for Updating of Maps
There is currently high interest in developing automated methods to assist the updating of map databases. This study presents methods for automatic detection of buildings and changes in buildings from airborne laser scanner and digital aerial image data and shows the potential usefulness of the methods with thorough experiments in a 5 km 2 suburban study area. 96% of buildings larger than 60 m ...
متن کاملFusing Airborne Laser Scanner Data and Aerial Imagery for the Automatic Extraction of Buildings in Densely Built-up Areas
Using airborne laser scanner data, buildings can be detected automatically, and their roof shapes can be reconstructed. The success rate of building detection and the level of detail of the resulting building models depend on the resolution of the laser scanner data, which is still lower than the resolution of aerial imagery. Building extraction from aerial images alone is difficult because of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1999