搜索结果: 1-15 共查到“测绘科学技术 X-ray”相关记录16条 . 查询时间(0.078 秒)
ASSESSMENT OF RESTORATION METHODS OF X-RAY IMAGES WITH EMPHASIS ON MEDICAL PHOTOGRAMMETRIC USAGE
Restoration Algorithms Denoising Stereo Radiography X-ray Images Quantum Noise
2016/11/11
Nowadays, various medical X-ray imaging methods such as digital radiography, computed tomography and fluoroscopy are used as important tools in diagnostic and operative processes especially in the com...
OBSERVATIONS ON THE PERFORMANCE OF X-RAY COMPUTED TOMOGRAPHY FOR DIMENSIONAL METROLOGY
X-ray computed tomography (XCT) dimensional metrology holeplate orientation beam hardening
2016/11/11
X-ray computed tomography (XCT) is a rising technology within many industries and sectors with a demand for dimensional metrology, defect, void analysis and reverse engineering. There are many variabl...
RAY-BASED DETECTION OF OPENINGS IN URBAN AREAS USING MOBILE LIDAR DATA
Windows detection Urban 3D reconstruction Building modelling Mobile Lidar data Laser point cloud
2016/7/27
The detection of openings like windows or doors is of great interest in the field of urban modeling. Mobile LIDAR data provides valuable 3D information for that purpose. There are generally two main p...
REMOTE SENSING GEOBOTANY AND AIRBORNE GAMMA-RAY DATA APPLIED TO GEOLOGICAL MAPPING WITHIN TERRA FIRME BRAZILIAN AMAZON FOREST:A COMPARATIVE STUDY IN THE GUAPORE VALLEY (MATO GROSSO STATE,BRAZIL)
Remote Sensing Geology Geophysics Mapping Forestry Multispectral ASTER
2015/12/29
This paper comprises a comparison between the vegetation response in ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) multispectral optical imagery and possibly equivalent bedroc...
Selective X-Ray Reconstruction and Registration for Pose Estimation in 6 Degrees of Freedom
Registration Pose Estimation
2015/12/17
Selective X-Ray Reconstruction and Registration for Pose Estimation in 6 Degrees of Freedom.
Broken-Ray Videometric Method and System for Measuring the Three-Dimensional Position and Pose of the Non-Intervisible Object
Close Range Photogrammetry Deformation Digital photogrammetry
2015/12/14
The traditional videometrics technique is usually adopted to measure the relative position and pose between the intervisible objects,
and is invalid for measuring the three-dimensional position, pose...
3D RECONSTRUCTION FROM MULTI-VIEW MEDICAL X-RAY IMAGES – REVIEW AND EVALUATION OF EXISTING METHODS
Stereoradiography 3D Reconstruction X-ray images close range photogrammetry
2016/1/15
The 3D concept is extremely important in clinical studies of human body. Accurate 3D models of bony structures are currently required in clinical routine for diagnosis, patient follow-up, surgical pla...
The Future of Virtual Globes - the Interactive Ray-Traced Digital Earth
Visualization 3D Data Structure Aerial Photogrammetry Data Integration
2015/12/3
In the past ten years graphics cards have been drastically improved. Being pushed by the multi-billion dollar computer game industry the capabilities and performance of graphics processors (GPUs) incr...
RAY TRACING FOR MODELING OF SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS
RAY TRACING FOR MODELING SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS
2015/11/10
Airborne Laser Scanning (ALS) has been established as a valuable tool for the estimation of biophysical canopy variables, such as tree height and vegetation density. However, up to now most approaches...
MODELING OF SMALL FOOTPRINT AIRBORNE LASER SCANNING RETURNS USING RAY-TRACING AND L-SYSTEMS
Physical modeling remote sensing
2015/9/8
Airborne Laser Scanning (ALS) has been established as a valuable tool for the estimation of biophysical
canopy variables, such as tree height and vegetation density. However, up to now most approache...
USING MONTE-CARLO RAY TRACING TO INVESTIGATE THE MEASUREMENT OF FOREST PARAMETERS WITH THE ECHIDNATM LASER SCANNER
Canopy foliage lidar
2015/9/8
A Monte-Carlo ray tracer has been developed from a previous system to simulate a ground based, full waveform laser ranger, such as
the Echidna? Overlapping scans have been simulated using a geometric...
Automatic urban 3D building reconstruction from multi-ray photogrammetry
Feature extraction multi-ray photogrammetry data integration
2014/9/9
Over the last 20 years the use of, and demand for, three dimensional (3D) building models has meant there has been a vast amount of research conducted in automating the extraction and reconstruction o...
REFLECTANCE ESTIMATION FROM URBAN TERRESTRIAL IMAGES: VALIDATION OF A SYMBOLIC RAY-TRACING METHOD ON SYNTHETIC DATA
Radiometry reflectance BRDF ray-tracing terrestrial images
2014/5/8
Terrestrial geolocalized images are nowadays widely used on the Internet, mainly in urban areas, through immersion services such as Google Street View. On the long run, we seek to enhance the visualiz...
RAY TRACING AND SAR-TOMOGRAPHY FOR 3D ANALYSIS OF MICROWAVE SCATTERING AT MAN-MADE OBJECTS
SAR Simulation Ray Tracing POV Ray SAR Tomography TerraSAR-X
2016/3/1
An inherent drawback of SAR imaging of complex 3D structures is the potential layover of more than one scatterer in one resolution
cell. Such scatterers can be separated by tomographic processing of...
To overcome such problems, we argue that a process based on multiple image overlap is the appropriate solution. In the age of digital
aerial cameras such multiple overlaps can be commanded without e...