搜索结果: 1-15 共查到“光学 Extraction”相关记录17条 . 查询时间(0.126 秒)
EXTRACTION OF BUILT-UP AREA BY COMBINING TEXTURAL FEATURES AND SPECTRAL INDICES FROM LANDSAT-8 MULTISPECTRAL IMAGE
Built-up Support Vector Machine Texture
2019/2/28
Remote sensing techniques provide efficient and cost-effective approach to monitor the expansion of built-up area, in comparison to other traditional approaches. For extracting built-up class, one of ...
ENDMEMBER EXTRACTION OF HIGHLY MIXED DATA USING L1 SPARSITY-CONSTRAINED MULTILAYER NONNEGATIVE MATRIX FACTORIZATION
Hyperspectral Imagery Nonnegative Matrix Factorization Multilayer Nonnegative Matrix Factorization Sparsity Constraint Endmember Extraction
2018/5/11
Due to the limited spatial resolution of remote hyperspectral sensors, pixels are usually highly mixed in the hyperspectral images. Endmember extraction refers to the process identifying the pure endm...
THE STUDY OF RESIDENTIAL AREAS EXTRACTION BASED ON GF-3 TEXTURE IMAGE SEGMENTATION
Residential Areas Extraction GF-3, Backscattering Coefficient Image Filtering Texture Feature, Image Segmentation
2018/5/15
The study chooses the standard stripe and dual polarization SAR images of GF-3 as the basic data. Residential areas extraction processes and methods based upon GF-3 images texture segmentation are com...
OPTIMIZING RADIOMETRIC PROCESSING AND FEATURE EXTRACTION OF DRONE BASED HYPERSPECTRAL FRAME FORMAT IMAGERY FOR ESTIMATION OF YIELD QUANTITY AND QUALITY OF A GRASS SWARD
Hyperspectral Photogrammetry Calibration Feature Estimation
2018/5/15
Light-weight 2D format hyperspectral imagers operable from unmanned aerial vehicles (UAV) have become common in various remote sensing tasks in recent years. Using these technologies, the area of inte...
ALTERATION MINERALS EXTRACTION USING AIRBORNE HYPERSPECTRAL DATA CASI AND SASI IN WUYI METALLOGENIC BELT, CHINA
Alteration Minerals Airborne Hyperspectral Wuyi Metallogenic Belt Spectral Feature MTMF CASI and SASI
2018/5/14
Hydrothermal alteration is an important content in the study of epithermal deposit, and its deep part is often accompanied by porphyry mineralization. The objective of research is to mapping the alter...
AUTOMATIC EXTRACTION OF ROAD MARKINGS FROM MOBILE LASER-POINT CLOUD USING INTENSITY DATA
Laser Scanning Road Marking Point Cloud High Precision Map Adaptive Threshold Segmentation
2018/5/16
With the development of intelligent transportation, road’s high precision information data has been widely applied in many fields. This paper proposes a concise and practical way to extract road marki...
INFORMATION EXTRACTION IN TOMB PIT USING HYPERSPECTRAL DATA
Hyperspectral data Principal component analysis Historical remains Band math Density slice Morphology
2018/5/16
Hyperspectral data has characteristics of multiple bands and continuous, large amount of data, redundancy, and non-destructive. These characteristics make it possible to use hyperspectral data to stud...
USING INDIVIDUAL TREE CROWN APPROACH FOR FOREST VOLUME EXTRACTION WITH AERIAL IMAGES AND LASER POINT CLOUDS
Individual Tree Crown (ITC) Laser scanning Tree height Aerial imagery Segmentation
2015/8/13
The objective of this paper is to improve the cost-effectiveness (accuracy of estimates versus applied costs) of present ITC
(Individual Tree Crown) approaches which are based on 1) aerial imagery or...
EXTRACTION OF PLANAR PATCHES FROM POINT CLOUDS TO RETRIEVE DIP AND DIP DIRECTION OF ROCK DISCONTINUITIES
Risk assessment Geomorphology Photogrammetry
2015/8/13
Laser scanners and image matching algorithms produce large amounts of 3D data, allowing detailed and accurate descriptions of
objects. This is true, though, only if interactive or automated software...
Automated extraction of pair wise structure lines using airborne laserscanner data in coastal areas
Laser scanning LIDAR structure and breakline detection surface
2015/8/13
The coastline of the North Sea is characterized by a large number of different morphological objects like dikes, dunes and tidal
creeks. Due to the tidal effects and other natural forces the shape, s...
STRATEGY FOR THE EXTRACTION OF 3D ARCHITECTURAL OBJECTS FROM LASER AND IMAGE DATA ACQUIRED FROM THE SAME VIEWPOINT
Laser scanner image data terrestrial surveying 3D reconstruction semi-automation data fusion
2015/8/7
This paper presents a general strategy for 3D reconstruction of complex architectural scenes. This approach makes use of both laser
data (range and retro-diffusion) and image data, and of their great...
FEATURE EXTRACTION OF HYPERSPECTRAL IMAGES USING MATCHING PURSUIT
Hyper-Spectral Sensing Wavelet Transform Matching Pursuit Feature Extraction Classification
2015/7/30
Hyperspectral images contain rich and fine spectral information, an improvement of land use/cover classification accuracy is
expected from the use of such images. However, the classification methods...
AUTOMATIC BUILDING EXTRACTION AND 3-D CITY MODELING FROM LIDAR DATA BASED ON HOUGH TRANSFORMATION
LIDAR Modeling City Graphics
2015/6/1
This paper proposes a new method of LIDAR data processing to automatically extract building and 3-D city modeling. This method
exploits image processing technique including Hough transformation. The...
Pseudo-Grid Based Building Extraction Using Airborne LIDAR Data
LIDAR Building Extraction Building Detection
2015/6/1
This paper proposed a practical method for building detection and extraction using airborne laser scanning data. The proposed
method consists mainly of two processes: low and high level processes. T...
Experimental extraction of secure correlations from a photonic private state
Experimental extraction of secure correlations from a photonic private state
2010/11/8
Photonic entanglement is a vital resource for quantum key distribution (QKD) of Ekert's protocol, where the random key obtained from a maximally entangled state is known exclusively to legitimate user...