搜索结果: 1-15 共查到“航空摄影测量 Extraction”相关记录27条 . 查询时间(0.203 秒)
EXTRACTION OF ROOF LINES FROM HIGH-RESOLUTION IMAGES BY A GROUPING METHOD
Markov Random Field ALS Straight line
2016/7/28
This paper proposes a method for extracting groups of straight lines that represent roof boundaries and roof ridgelines from highresolution aerial images using corresponding Airborne Laser Scanner (AL...
AUTOMATIC BUILDING EXTRACTION AND ROOF RECONSTRUCTION IN 3K IMAGERY BASED ON LINE SEGMENTS
Building detection line segment detection DSM morphological filtering RANSAC plane fitting vegetation identification
2016/7/27
We propose an image processing workflow to extract rectangular building footprints using georeferenced stereo-imagery and a derivative digital surface model (DSM) product. The approach applies a line ...
Automatic 3D Extraction of Buildings, Vegetation and Roads from LIDAR Data
Lidar automatic extraction 3D modelling of building
2016/7/27
Aerial topographic surveys using Light Detection and Ranging (LiDAR) technology collect dense and accurate information from the surface or terrain; it is becoming one of the important tools in the geo...
BARE-EARTH EXTRACTION AND DTM GENERATION FROM PHOTOGRAMMETRIC POINT CLOUDS WITH A PARTIAL USE OF AN EXISTING LOWER RESOLUTION DTM
Photogrammetry Point cloud DSM DTM Ground filtering Image matching
2016/7/27
A method of extracting bare-earth points from photogrammetric point clouds by partially using an existing lower resolution digital terrain model (DTM) is presented. The bare-earth points are extracted...
RANDOM FOREST AND OBJECTED-BASED CLASSIFICATION FOR FOREST PEST EXTRACTION FROM UAV AERIAL IMAGERY
Superpixel Simple Linear Iterative Cluster (SLIC) texture Forest Pest Random Forest unmanned aerial vehicle (UAV) aerial imagery
2016/7/5
Forest pest is one of the most important factors affecting the health of forest. However, since it is difficult to figure out the pest areas and to predict the spreading ways just to partially control...
ROBUST BUILDING OUTLINE REPRESENTATION AND EXTRACTION
Building Extraction Building Description Hough Transform Graph Search Region Grow
2016/3/17
This paper presents an efficient and robust strategy for building description and extraction from high resolution aerial image. This approach is different from traditional techniques in shapeformation...
A METHOD OF HIGH-RESOLUTION REMOTE SENSING IMAGES BUILDING ON EDGE EXTRACTION
Aerial Images Building Contour Building Recognition Edge Extraction Edge Extraction Semi-Automatic
2015/12/31
This paper proposes a method of high-resolution remote sensing image of buildings on semi-automatic edge extraction. The first, pre-process remote sensing image and detecting all the edge; the second,...
BUILDING ROOF RECONSTRUCTION FROM LIDAR DATA AND AERIAL IMAGES THROUGH PLANE EXTRACTION AND COLOUR EDGE DETECTION
Laser Sanning (LiDAR) Building Rconstruction Aerial Photogrammetry Data Integration Urban planning Image Pocessing
2015/12/23
In this paper a strategy for 3D reconstruction of building roofs from airborne laser scanning and aerial images is discussed. In order to keep it as general as possible, no predefined primitives or gr...
Automatic Peaks Extraction from Normalized Digital Surface Model (NDSM);
Remote Sensing DEM Peaks Photogrammetry NSDM Morphology
2015/12/9
Automatically extraction of peaks from 3D Digital models such as Digital Elevation model (DEM),Digital surface model (DSM) and Normalized Digital surface model (NDSM) is as important as image comprehe...
Canopy Extraction Using Airborne Laser Scanning Data in Forestry Areas
Forestry Extraction Estimation Photogrammetry Laser scanning Radar
2015/12/8
To understand the biomass condition in the forestry areas, the detection for individual trees becomes an important topic. For forestry management, the canopy may be described with several parameters, ...
Building Detection and Structure Line Extraction from Airborne LIDAR Data
Laser scanning Edge detection Aerial Survey Feature extraction Buildings
2015/12/8
The development of LIDAR (Light Detection and Ranging) system makes the acquisition of 3D surface information more convenient and immediate than other geomatics technologies. However, the 3D coordinat...
Robust and Automatic Vanishing Points Detection with Their Uncertainties from a Single Uncalibrated Image, by Planes Extraction on the Unit Sphere
Photogrammetry Geometry Vanishing points extraction Image Orientation Error estimation
2015/12/4
This paper deals with the retrieval of vanishing points in uncalibrated images. Many authors did work on that subject in the computer vision field because the vanishing point represents a major inform...
IMPROVING THE MORPHOLOGICAL ANALYSIS FOR TREE EXTRACTION:A DYNAMIC APPROACH TO LIDAR DATA
LiDAR Tree extraction Morphological analysis Region Growing Vegetation indexes Dynamic approaches
2015/11/10
The improvement of laser scanning as a proficient technology to better understand the complexity of the forest has recently allowed the detection of the forestry parameters at tree level. From a fores...
AUTOMATED DSM EXTRACTION FROM UAV IMAGES AND PERFORMANCE ANALYSIS
DSM Stereo matching Epipolar lines UAV Photogrammetry
2015/9/10
As technology evolves, unmanned aerial vehicles (UAVs) imagery is being used from simple applications such as image acquisition to complicated applications such as 3D spatial information extraction. S...
SEMIAUTOMATIC ROAD EXTRACTION BY DYNAMIC PROGRAMMING OPTIMISATION IN THE OBJECT SPACE:SINGLE IMAGE CASE
Dynamic Programming road model feature extraction road extraction aerial images
2015/8/31
This article proposes a novel road extraction methodology from digital images. The innovation is based on the dynamic programming (DP) algorithm to carry out the optimisation process in the object spa...