搜索结果: 1-15 共查到“测绘科学技术 On-line”相关记录108条 . 查询时间(0.111 秒)
AUTOMATIC GLOBAL REGISTRATION BETWEEN AIRBORNE LIDAR DATA AND REMOTE SENSING IMAGE BASED ON STRAIGHT LINE FEATURES
Registration Automatic LiDAR Remote Sensing Straight Line Similarity Measure
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2018/5/15
An automatic global registration approach for point clouds and remote sensing image based on straight line features is proposed which is insensitive to rotational and scale transformation. First, the ...
TOWARDS ROBUST SELF-CALIBRATION FOR HANDHELD 3D LINE LASER SCANNING
structured light self-calibration laser scanning 3D reconstruction
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2018/3/5
This paper studies self-calibration of a structured light system, which reconstructs 3D information using video from a static consumer camera and a handheld cross line laser projector. Intersections b...
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
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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/...
ON-LINE CHANGE MONITORING WITH TRANSFORMED MULTI-SPECTRAL TIME SERIES,A STUDY CASE IN TROPICAL FOREST
Multi-Spectral BFAST Dimension Reduction Deforestation Monitor
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2016/11/24
In recent years, the methods for detecting structural changes in time series have been adapted for forest disturbance monitoring using satellite data. The BFAST (Breaks For Additive Season and Trend) ...
FIELD SPECTROSCOPY FOR VEGETATION EVALUATION ALONG THE NUTRIENT AND ELEVATION GRADIENT ABOVE THE TREE LINE IN THE KRKONOŠE MOUNTAINS NATIONAL PARK
field spectroscopy plant cover fAPAR nutrient and elevation gradient tundra The Krkonoš e Mountains National Park
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2016/11/15
This paper examines the relations between vegetation spectra measured in the field along the nutrient and elevation gradient in the most valuable parts of The Krkonoše Mountains tundra and select...
AUTOMATIC RAILWAY POWER LINE EXTRACTION USING MOBILE LASER SCANNING DATA
Power line extraction Mobile laser scanning Quaternion algorithm Hough voting Point cloud
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2016/11/11
Research on power line extraction technology using mobile laser point clouds has important practical significance on railway power lines patrol work. In this paper, we presents a new method for automa...
ADAPTATION OF INDUSTRIAL HYPERSPECTRAL LINE SCANNER FOR ARCHAEOLOGICAL APPLICATIONS
hyperspectral scanning archaeometry calibration cultural heritage spectral classification visualisation
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2016/11/11
The spectral characteristic of the visible light reflected from any of archaeological artefact is the result of the interaction of its surface illuminated by incident light. Every particular surface d...
Line Matching Algorithm for Aerial Image Combining image and object space similarity constraints
Line matching Aerial Images Feature matching Similarity constraint
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2016/7/28
A new straight line matching method for aerial images is proposed in this paper. Compared to previous works, similarity constraints combining radiometric information in image and geometry attributes i...
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
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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 ...
ORIENTATION MODELING FOR AMATEUR CAMERAS BY MATCHING IMAGE LINE FEATURES AND BUILDING VECTOR DATA
Direct Georeferencing Feature Line Matching Line Control Orientation Modeling Orientation Parameters
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2016/7/27
With the popularity of geospatial applications, database updating is getting important due to the environmental changes over time. Imagery provides a lower cost and efficient way to update the databas...
POINT CLOUD ORIENTED SHOULDER LINE EXTRACTION IN LOESS HILLY AREA
Point cloud Proceedings Terrestrial 3D Laser Scanner shoulder line DEM Loess hilly
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2016/7/27
Shoulder line is the significant line in hilly area of Loess Plateau in China, dividing the surface into positive and negative terrain (P-N terrains). Due to the point cloud vegetation removal methods...
ON-LINE GIS ANALYSIS AND IMAGE PROCESSING FOR GEOPORTAL KIELCE/POLAND DEVELOPMENT
GIS Geoportal Sentinel-2
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2016/7/8
GIS databases are widely available on the Internet, but mainly for visualization with limited functionality; very simple queries are possible i.e. attribute query, coordinate readout, line and area me...
ON-LINE WAVELENGTH CALIBRATION OF PULSED LASER FOR CO2 DIFFERENTIAL ABSORPTION LIDAR
On-line wavelength calibration Pulsed laser Multi-wavelength scanning Energy matching
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2016/7/4
Differential absorption lidar (DIAL) remote sensing is a promising technology for atmospheric CO2 detection. However, stringent wavelength accuracy and stability are required in DIAL system. Accurate ...
GEOMETRIC CALIBRATION OF ZIYUAN-3 THREE-LINE CAMERAS COMBINING GROUND CONTROL POINTS AND LINES
Geometric calibration three-line cameras ground control lines direct georeferencing orientation parameters Ziyuan-3 block adjustment
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2016/7/4
Due to the large biases between the laboratory-calibrated values of the orientation parameters and their in-orbit true values, the initial direct georeferencing accuracy of the Ziyuan-3 (ZY-3) three-l...
Photogrammetric point determination and DEM generation using MOMS-2P/PRIRODA three-line imagery
: MOMS-2P Three-Line Imagery Self Calibration Bundle Adjustment
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2016/5/20
This paper describes the process of photogrammetric point determination by bundle adjustment using three-line imagery collected by MOMS-2P, the German Modular Optoelectronic Multispectral Scanner. Sin...