搜索结果: 1-12 共查到“测绘科学技术 Positional”相关记录12条 . 查询时间(0.155 秒)
FEATURE ORIENTATION AND POSITIONAL ACCURACY ASSESSMENT OF DIGITAL ORTHOPHOTO AND LINE MAP FOR LARGE SCALE MAPPING: THE CASE STUDY ON BAHIR DAR TOWN, ETHIOPIA
Orthophoto Line map GPS data Positional Orientation Accuracy
2017/7/12
This study used in-situ GPS data to validate the accuracy of horizontal coordinates and orientation of linear features of orthophoto and line map for Bahir Dar city. GPS data is processed using GAMIT/...
POSITIONAL ACCURACY ASSESSMENT OF THE OPENSTREETMAP BUILDINGS LAYER THROUGH AUTOMATIC HOMOLOGOUS PAIRS DETECTION: THE METHOD AND A CASE STUDY
Accuracy Building Open Data
2016/7/8
OpenStreetMap (OSM) is currently the largest openly licensed collection of geospatial data. Being OSM increasingly exploited in a variety of applications, research has placed great attention on the as...
STUDY ON MODELING AND VISUALIZING THE POSITIONAL UNCERTAINTY OF REMOTE SENSING IMAGE
uncertainty remote sensing geometric correction
2016/7/8
It is inevitable to bring about uncertainty during the process of data acquisition. The traditional method to evaluate the geometric positioning accuracy is usually by the statistical method and repre...
NEW METHODOLOGY OF REPRESENTING THE POSITIONAL ERROR OF NONPOINT FEATURES IN GIS
Positional error Non-point feature Indicators Shape similarity
2016/1/3
Traditionally, RMSE is used to represent the positional error of GIS features including point, linear and area features. Although RMSE can reflect the error of point features effectively and accuratel...
ASSESSMENT OF COMPLETENESS AND POSITIONAL ACCURACY OF LINEAR FEATURES IN VOLUNTEERED GEOGRAPHIC INFORMATION (VGI)
Volunteered Geographical Information Data Quality Quality Assessment Positional Accuracy completeness
2016/1/15
Recent advances in spatial data collection technologies and online services dramatically increase the contribution of ordinary people to produce, share, and use geographic information. Collecting spat...
Simulation and Model Validation of Positional Uncertainty of Line Feature on Manual Digitizing a Map
Simulation Digital Distributed Model Quality Error Accuracy
2015/12/3
The line feature is divided into two endpoints and line entity in this paper. The error model of independent point has been studied thoroughly, but study on positional uncertainty of endpoint based on...
Spatial Data Positional Accuracy Analyzing and Testing
DLG GPS Quality Control Accuracy Testing Error Distribution
2015/10/12
In this article 1:50000 DLG data is used as an example to analyze and test spatial data positional accuracy.At first 1:50000 DLG data
acquisition technical process and data content is simply introdu...
PROPAGATION OF POSITIONAL MEASUREMENT ERRORS TO FIELD OPERATIONS
Positional accuracy GPS vector data stochastic simulation precision agriculture
2015/9/28
Precision agriculture requires detailed information about numerous factors that determine optimal agricultural management. Recently, the importance of accurate assessment of field boundaries for preci...
INFLUENCE OF IMAGE SEGMENTATION PARAMETERS ON POSITIONAL AND SPECTRAL QUALITY OF THE DERIVED OBJECTS
Segmentation IKONOS spectral quality positional quality Remote sensing
2015/8/19
With the launch of very high spatial resolution sensors, a good positional quality can be expected from spatial imagery. Furthermore,efficient segmentation algorithms can increase the productivity and...
Assessing The Positional and Thematic Accuracy of Remotely Sensed Data
accuracy reliability estimation
2015/7/9
Classification of remotely sensed imagery gives variable and often poor quality results. The causes and nature of these errors have
been the subject of extensive research.. There are two different co...
UPDATION AND POSITIONAL ACCURACY IMPROVEMENT OF GEO SPATIAL DATA-INNOVATIONS AT KAMPSAX INDIA PRIVATE LIMITED
PAI New mapping Updation Transformations Geometric fidelity
2015/6/1
Kampsax India Private Limited (KIL) is engaged in the production of very large mapping projects from all over the world though mainly from Europe and Latin America with over 35 digital Photogrammetric...
MINIMISING POSITIONAL ERRORS IN LINE SIMPLIFICATION USING ADAPTIVE TOLERANCE VALUES
MINIMISING POSITIONAL ERRORS LINE SIMPLIFICATION ADAPTIVE TOLERANCE VALUES
2015/3/16
MINIMISING POSITIONAL ERRORS IN LINE SIMPLIFICATION USING ADAPTIVE TOLERANCE VALUES.