搜索结果: 1-15 共查到“知识库 工学 ray”相关记录88条 . 查询时间(0.031 秒)
X-ray and UV Dual Photochromism, Thermochromism, Electrochromism, and Amine-Selective Chemochromism in an Anderson-like Zn7 Cluster-Based 7-Fold Interpenetrated Framework（图）
Anderson Zn7簇 光致变色 热致变色 电致变色
2023/3/28
Smart materials are highly desirable over the recent decade due to the growing demand of complicated nature. Stable stimuli-responsive smart materials exhibit widespread potential for applications in ...
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...
改进后Ray-Box Intersection权系数矩阵的SART+TVM重建算法
联合代数重建 全变差最小化 Ray-BoxIntersection算法 双线性插值算法 权系数矩阵
2016/7/28
针对均匀采样稀疏型重建问题，研究了Ray-Box Intersection和传统的双线性插值两种权系数矩阵计算方法。对Ray-Box Intersection算法的逻辑漏洞进行了改进，利用直线生成法并结合射线斜率和像素位置关系提出了改进算法。该算法利用代数关系求得射线穿过重建区域的起点和终点，然后取不大于其坐标的最大整数，最后采用直线生成法，依据射线斜率沿X或Y方向得到该条射线在投影区域内经过的所...
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...
Exploring the Measurement Of Forests With Full Waveform LIDAR through Monte-Carlo Ray Tracing
Forestry structure lidar vegetation simulation 3D modelling satellite
2015/11/20
The error of the height estimates are precisely quantified by comparison with the 3D model height. This paper discusses the development and testing of the inversion of tree height from simulations of ...
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...