搜索结果: 151-165 共查到“测绘科学技术 algorithm”相关记录202条 . 查询时间(0.076 秒)
CORRECTION OF NON-LINEAR DISTORTION IN DIGITAL IMAGES USING A PROPOSED NORMALIZATION ALGORITHM
Algorithms Corrections Sensors
2014/12/29
In this paper, image formation will be investigated in detail. Data captured is a representation of data collected by two kinds of sensors widely in use in remotely sensed image processing application...
A SAR SPECKLE FILTERING ALGORITHM TOWARDS EDGE SHARPENING
Radar Speckle Reduction Texture Image Processing
2014/12/29
One of the major difficulties when classifying synthetic aperture radar (SAR) images is the existence of speckle due to coherent processing. Existing speckle filtering algorithms can effectively reduc...
Development of Gis Tool for the Solution of Minimum Spanning Tree Problem using Prim's Algorithm
Transportation Network GIS Tool Minimum Spanning Tree (MST) Prim’s Algorithm Network Analysis
2014/12/16
minimum spanning tree (MST) of a connected, undirected and weighted network is a tree of that network consisting of all its nodes and the sum of weights of all its edges is minimum among all such poss...
Target detection algorithm for airborne thermal hyperspectral data
Thermal Hyperspectral LWIR (Long Wave Infrared) Constrained Energy Minimization (CEM) Minimum Noise Fraction (MNF)
2014/12/15
Airborne hyperspectral imaging is constantly being used for classification purpose. But airborne thermal hyperspectral image usually is a challenge for conventional classification approaches. The Telo...
AN ADAPTIVE POLYGONAL CENTROIDAL VORONOI TESSELLATION ALGORITHM FOR SEGMENTATION OF NOISY SAR IMAGES
SAR Centroidal Voronoi Tessellation Segmentation Clustering Gamma Distribution
2014/12/1
In this research, a fast, adaptive and user friendly segmentation methodology is developed for highly speckled SAR images. The developed region based centroidal Voronoi tessellation (R-BCVT) algorithm...
MODIFIED A* ALGORITHM IMPLEMENTATION IN THE ROUTING OPTIMIZED FOR USE IN GEOSPATIAL INFORMATION SYSTEMS
GIS Routing Optimization Graph Theory A*Algorithms Modelling
2014/12/1
Among the main issues in the theory of geometric grids on spatial information systems, is the problem of finding the shortest path routing between two points. In this paper tried to using the graph th...
3D EXTENTION OF THE VOR ALGORITHM TO DETERMINE AND OPTIMIZE THE COVERAGE OF GEOSENSOR NETWORKS
Geosensor networks deployment Network coverage problem Voronoi based optimization algorithm
2014/12/1
Recent advances in electrical, mechanical and communication systems have led to development of efficient low-cost and multi-function geosensor networks. The efficiency of a geosensor network is signif...
FILTERING OF LIDAR POINT CLOUD USING A STRIP BASED ALGORITHM IN RESIDENTIAL MOUNTAINOUS AREAS
Segmentation Filtering LIDAR Point cloud strip based filtering
2014/12/1
Several algorithms have been developed to automatically detect the bare earth in LIDAR point clouds referred to as filtering. Previous experimental study on filtering algorithms determined that in fla...
DIFFERENT OPTIMAL BAND SELECTION OF HYPERSPECTRAL IMAGES USING A CONTINUOUS GENETIC ALGORITHM
Classification Band Selection Hyperspectral Image Continuous Genetic Algorithm SVM
2014/12/1
In the most applications in remote sensing, there is no need to use all of available data, such as using all of bands in hyperspectral images. In this paper, a new band selection method was proposed t...
A New Unsupervised Change Detection Approach Based On DWT Image Fusion And Backtracking Search Optimization Algorithm For Optical Remote Sensing Data
Change Detection DWT Based Image Fusion Backtracking Search Optimization Algorithm (BSA)
2014/9/29
Change detection is one of the most important subjects of remote sensing discipline. In this paper, a new unsupervised change detection approach is proposed for multi-temporal remotely sensed optic im...
Investigating Performance Of Airborne Lidar Data Filtering With Triangular Irregular Network (TIN) Algorithm
Airborne Lidar Filtering TIN Algorithm DEM
2014/9/29
Digital Elevation Model (DEM) is an important topographic product and essential demand for many applications. Traditional methods for creating DEM are very costly and time consuming because of land su...
A Fast Recognition Algorithm for Detection of Foreign 3D Objects on a Runway
3D object recognition foreign object detection systems runway detection system
2014/9/9
The systems for detection of foreign objects on a runway during the landing of an aircraft are highly demanded. Such systems could be installed in the airport or could be mounted on the board of an ai...
A real-time photogrammetric algorithm for sensor and synthetic image fusion with application to aviation combined vision
Sensor Combination Detection Matching Visualization System Real-time Vision
2014/9/9
The paper addresses a promising visualization concept related to combination of sensor and synthetic images in order to enhance situation awareness of a pilot during an aircraft landing. A real-time a...
A general data-driven algorithm for façade structure modeling using ground based laser data
Terrestrial laser data Point cloud Data-driven modeling RANSAC Density histogram
2014/9/9
Façade reconstruction from laser point cloud has been an interesting subject in Photogrammetric community for the last two decades. However, due to the variety of architecture types and the natur...
Quasi-five point algorithm with non-linear minimization
Five Point Algorithm Relative Orientation UAV
2014/7/30
Five-point algorithm is a powerful tool for relative orientation, because it requires no initial assumption of camera position. This algorithm determines an essential matrix from five point correspond...
