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GF-3 SAR IMAGE DESPECKLING BASED ON THE IMPROVED NON-LOCAL MEANS USING NON-SUBSAMPLED SHEARLET TRANSFORM
GF-3 SAR non-subsampled Shearlet transform image despeckling improved Non-Local Means
2018/4/30
GF-3 synthetic aperture radar (SAR) images are rich in information and have obvious sparse features. However, the speckle appears in the GF-3 SAR images due to the coherent imaging system and it hinde...
THE LOW BACKSCATTERING OBJECTS CLASSIFICATION IN POLSAR IMAGE BASED ON BAG OF WORDS MODEL USING SUPPORT VECTOR MACHINE
Low Backscattering Objects Bag of Words SIFT features Support Vector Machine
2018/4/30
Due to the forward scattering and block of radar signal, the water, bare soil, shadow, named low backscattering objects (LBOs), often present low backscattering intensity in polarimetric synthetic ape...
THIN CLOUD DETECTION METHOD BY LINEAR COMBINATION MODEL OF CLOUD IMAGE
Cloud Detection Image Features Grayscale Texture Linear Model AdaBoost Classifier
2018/4/30
The existing cloud detection methods in photogrammetry often extract the image features from remote sensing images directly, and then use them to classify images into cloud or other things. But when t...
Multiscale Shape and Detail Enhancement from Multi-light Image Collections
image enhancement NPR relighting shape depiction bilateral filter multiscale image processing
2016/5/24
We present a new image-based technique for enhancing the shape
and surface details of an object. The input to our system is a small
set of photographs taken from a fixed viewpoint, but under varying...
System calibration, geometric accuracy testing and validation of DEM & orthoimage data extracted from SPOT stereo pairs using commercially available image processing systems
System calibration geometric accuracy testing DEM orthoimage data extracted SPOT stereo pairs
2016/5/20
The paper describes the comprehensive testing of the digital photogrammetric modules forming parts of the image processing systems available from a number of remote sensing system suppliers - PCI, ERD...
A Review of Recent Range Image Reconstruction Algorithms
Laser scanning (LIDAR) Reconstruction Computer Vision Comparative analysis Process modeling
2015/12/8
Preparing virtual models by data acquired from indoor and outdoor objects, comprehensively, have been ingratiated with specialists of geomatic science. Since previous years, specialists of computer sc...
Red Relief Image Map: New Visualization Method for Three Dimensional Data
LIDAR Application Visualization DEM/DTM Graphics Representation
2015/12/3
The vast increase of the volume of three dimensional topographic data acquired by Airborne LIDAR extends the possibility of the visualization method. The maximum laser pulse frequency of modern LIDAR ...
A Fuzzy-based Method for Remote Sensing Image Contrast Enhancement
Image Processing Colour Interpretation Fuzzy Logic
2015/12/3
Many conventional contrast enhancement techniques adopt a global approach to enhance all the brightness level of the image. However, it is usually difficult to enhance all land cover classes appearing...
Image Coregistration in SAR Interferometry
SAR Interferometry Co-registration Interferometric SAR (InSAR)
2015/11/20
A critical procedure in Synthetic Aperture Radar (SAR) Interferometric (InSAR) processing was studied: SAR image coregistration. Two pairs of ERS-1/2 SAR tandem data, representing diverse terrain type...
Research on SAR Image Matching Technology based on SIFT
SAR Curvelet De-noising SIFT Image Matching
2015/11/20
Image matching is one of the key technologies in remote sensing image fusion and navigation. Image matching of Synthetic Aperture Radar (SAR) is a process to find relationship of pixels in many SAR im...
Study on Airborne SAR Image Matching Using Epipolar
Airborne SAR Image Matching Radar Photogrammetry Epipolar Geometry Template Matching
2015/11/20
Aerial photos are broadly used to generate the 4D(DEM, DOM, DLG, DRG) products in photogrammetry, but there are some difficult areas where are usually rainy and cloudy, so in these areas optical image...
Image Restoration of Calibration and Validation for KOMPSAT-2
Calibration Passive Optical system Image restoration MTF Radiometry Camera Sensor KOMPSAT-2
2015/11/20
The image restoration of Calibration and Validation (Cal/Val) for the KOMPSAT-2 (KOrea Multi-Purpose SATellite-2) has six parameters; Linearity, Video processor gain/offset, Non-uniformity correction,...
Using Exotic Guidance for PLEIADES-HR Image Quality Calibration
Calibration Image Quality Guidance Star
2015/11/20
In-flight Image Quality calibration and performance assessment activities depend on specific acquisitions and, for some of them, on dedicated guidance of the satellite platform. The operational constr...
Image-Based Estimation and Validation of NIRS for High-Resolution Satellite Images
GSD MTF SNR NIIRS GIQE Edge Response
2015/11/20
As high resolution satellite images are being used widely in many applications more and more users are demanding images of good quality. The ‘quality’ of satellite images are expressed by many technic...
The Solid Image Web Viewer: A New Way For 3D Survey Data Web-Fruition
Spatial Information Sciences Surveying Internet/Web Analysis Consulting Archiving Three-dimensional
2015/11/11
3D information creation and fruition has always been, and still is, problematic. The creation of the 3D knowledge of objects has however become easier over the years: the combined use of LIDAR and the...