UPDATING NATIONAL TOPOGRAPHIC DATA BASE USING CHANGE DETECTION METHODS
نویسندگان
چکیده
منابع مشابه
Change Detection for Topographic Mapping Using Three- Dimensional Data Structures
Identifying significant changes to our urban areas is a prerequisite for accurate topographic mapping. This paper presents an approach based on octree data structures to identify change between two sets of point cloud data. The aim of the study was to establish if a method based on the comparison of point clouds could be used to detect simply where topographic change had occurred. As many of th...
متن کاملChange Detection Methods for the Revision of Topographic Databases
Database updating and maintenance is becoming a demanding operation in national mapping organisations. Major tasks are the change detection and extraction and its integration in the existing data sets. Change detection is performed between a number of data sets involved in topographic applications. The implementation of more automation coupled with the availability of heterogeneous data require...
متن کاملCredit Card Fraud Detection using Data mining and Statistical Methods
Due to today’s advancement in technology and businesses, fraud detection has become a critical component of financial transactions. Considering vast amounts of data in large datasets, it becomes more difficult to detect fraud transactions manually. In this research, we propose a combined method using both data mining and statistical tasks, utilizing feature selection, resampling and cost-...
متن کاملBuilding Change Detection Improvement Using Topographic Correction Models
In the change detection application of remote sensing, commonly the variation in the brightness values of the pixels/objects in bi-temporal image is used as an indicator for detecting changes. However, there exist effects, other than a change in the objects that can cause variations in the brightness values. One of the effects is the illumination difference on steep surfaces mainly steeproofs o...
متن کاملUsing Landsat-7 Images to Update Canadian National Topographic Data
Natural Resources Canada's Centre for Topographic Information has a significant collection of topographic data at the 1:50 000 scale. The extent of the Canadian landmass makes it very difficult to update these data on a continuing basis. Following production of national Landsat-7 orthoimages coverage produced in partnership with more than 20 Canadian organisations, a project for updating topogr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
سال: 2016
ISSN: 2194-9034
DOI: 10.5194/isprs-archives-xli-b7-529-2016