搜索结果: 1-15 共查到“测绘科学技术 Linear features”相关记录15条 . 查询时间(0.111 秒)
DETECTING LINEAR FEATURES BY SPATIAL POINT PROCESSES
Linear Feature Feature Detection Spatial Point Processes Global Optimization Simulated Annealing Markov Chain Monte Carlo
2016/7/28
This paper proposes a novel approach for linear feature detection. The contribution is twofold: a novel model for spatial point processes and a new method for linear feature detection. It describes a ...
DETECTION AND INTERPRETATION OF GEOLOGICAL LINEAR FEATURES ON THE SATELLITE IMAGES BY USING GRADIENT FILTERING AND PRINCIPAL COMPONENT ANALYSIS
Geological Linear Feature Edge Detections Filtering Remote Sensing Landsat
2015/12/29
Digital image processing has the ability to detect geological linear features on the image by using some algorithms. The most common algorithm which is used for this purpose is edge filtering. Gradien...
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...
LINEAR FEATURES IN PHOTOGRAMMETRIC ACTIVITIES
Analysis Reliability Automation Feature Digital Photogrammetry
2015/6/1
Photogrammetric manipulation of imagery has been, for the major part, a point-based operation. The utilization of points remains to be convenient since few manually digitized points can be accurately ...
ACTIVE CONTOUR MODEL TO DETECT LINEAR FEATURES IN SATELLITE IMAGES
Remote Sensing Extraction, Detection
2015/6/1
We present preliminary results of a wavelet based active contour model for detecting linear features in satellite images The method
combines multi-scale decomposition and edge detection in a fast-co...
TOWARDS A NEW PARADIGM FOR REGISTRATION OF SAR IMAGES USING LINEAR FEATURES
Feature-Based Photogrammetry SAR Registration
2015/6/1
This paper summarizes a preliminary progress made in our ongoing R&D project concerned with developing a new paradigm for
orientation and registration of SAR images. The basic idea is to replace tra...
POSE ESTIMATION OF LINE CAMERAS USING LINEAR FEATURES.
Pose estimation Linear features Line cameras
2015/3/24
Pose estimation, which determines the position and the attitude of the camera, is a prerequisite for a variety of photogrammetric tasks such as image matching, surface reconstruction, ortho-photo gene...
AUTOMATIC POSE ESTIMATION OF IMAGERY USING FREE-FORM CONTROL LINEAR FEATURES
Data Fusion Linear Features
2015/3/24
Automatic Single Photo Resection (SPR) remains to be one of the challenging problems in digital photogrammetry. Visibility and
uniqueness of distinct control points in the input imagery limit robust...
SEMI-AUTOMATIC DETECTION AND ENHANCEMENT OF LINEAR FEATURES TO UPDATE GIS FILES
Edge Detection Thresholding Mathematical Morphology Semi-Automatic Linear Feature Detection GIS Mapping Aerial Photography
2014/12/31
This paper describes a program developed to allow semi-automatic detection and enhancement of linear features in aerial photography. The program employs three different edge detectors namely Sobel, De...
ABSOLUTE AND EXTERIOR ORIENTATION USING LINEAR FEATURES
Orientation photogrammetry algorithms geo-referencing image registration image mapping
2014/12/31
For many years we have had digital photogrammetric systems available that can perform automatic interior and relative orientation of aerial photographs. Developments in absolute and exterior orientati...
MATCHING LINEAR FEATURES FROM SATELLITE IMAGES WITH SMALL-SCALE GIS DATA
Feature Extraction GIS Matching Quality Control Revision
2014/12/30
For the revision of GIS data by means of digital images correspondence of image features and GIS objects is essential.In case of small scales this is complicated due to the fact that many GIS data hav...
PRECISION MAPPING OF HIGHWAY LINEAR FEATURES
Direct Platform Orientation (DPO) Sensor Integration Image processing Global Positioning System (GPS) Inertial navigation system (INS) Mobile mapping
2014/12/30
Direct georeferencing, i.e., direct measurement of the exterior orientation of an imaging sensor by means of integrated GPS/INS continues to generate an increasing interest in the surveying/mapping, a...
VECTORIZATION OF LINEAR FEATURES IN SCANNED TOPOGRAPHIC MAPS USING ADAPTIVE IMAGE SEGMENTATION AND SEQUENTIAL LINE TRACKING
Colour map Vectorization Sliding window Image segmentation Line tracking
2014/4/28
Vectorization of cartographic features is a difficult task in geographic information acquisition from topographic maps. This paper
presents a semi-automatic approach to linear feature vectorization ...
GEOREFERENCE OF TERRASAR-X IMAGES USING NETWORKS OF GROUND CONTROL LINEAR FEATURES
Georeferencing Matching, Feature SAR Radar
2014/6/5
One of the main novelties introduced by the contemporary spaceborne SAR sensors is the fine Ground Sample Distance (GSD). The
GSD of 1 m, which is available now, is comparable to the resolution offer...
Bundle Adjustment and Incidence of Linear Features on the Accuracy of External Calibration Parameters
Bundle Adjustment Linear Features Accuracy Photogrammetry
2015/6/1
In this paper we investigate the inuence of linear features (segments) in a bundle adjustment. Bundle adjustment is the problem of
rening a set of parameters (internal calibration, external calibrati...