搜索结果: 1-15 共查到“工学 Tracing”相关记录17条 . 查询时间(0.062 秒)
Barriers to Black-Box Constructions of Traitor Tracing Systems
two-party computation Secure Multiparty Computation
2015/12/21
Reducibility between different cryptographic primitives is a fundamental problem in modern
cryptography. As one of the primitives, traitor tracing systems help content distributors recover
the ident...
Side Ratio Constrain Based Precise Boundary Tracing Algorithm for Discrete Point Clouds
Laser Scanning (LiDAR) Edge detection Aerial Photogrammetry Feature Extraction
2015/12/8
Boundary tracing of discrete points is an important step to building model reconstruction using LiDAR data, its result directly effects the location regularization of building corners and the reconstr...
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...
A traitor tracing system enables a publisher to trace a pirate decryption box to one of the secret keys used to create the box. We present the first traitor tracing system where ciphertext size is "co...
Multiparty Key Exchange, Efficient Traitor Tracing, and More from Indistinguishability Obfuscation
Multiparty Key Exchange Effi cient Traitor Tracing
2015/8/5
Our traitor tracing system is fully collusion resistant with short ciphertexts, secret keys,
and public key. Ciphertext size is logarithmic in the number of users and secret key size is
independent ...
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...
世界各国增强动物性食品溯源机制的重要手段之一是对动物进行示踪和识别。介绍了一种基于RFID技术的动物示踪与识别系统。在阐述系统整体功能的基础上，设计了一种基于ARM开发系统的GPRS无线数据传输终端，针对动物示踪与识别系统实现功能及特征对数据中心数据库进行了具体设计，并结合动物示踪与识别系统的性能特点，阐述了系统应用的重要意义。
Tracing Individual Public Transport Customers from an Anonymous Transaction Database
Tracing Individual Public Transport Customers Anonymous Transaction Database
2009/10/19
Data mining concepts are used frequently throughout the transportation research
sector. This article examines the concept of the market basket technique as a means
of gaining more insight into publi...
Tracing processes of rigor mortis and subsequent resolution of chicken breast muscle using a texture analyzer
Rigor mortis Thaw rigor Struggle at slaughter Texture analyzer
2012/8/13
Rigor mortis is an important change affecting meat palatability. However, there seems no efficient way to continuously and automatically track the whole process of rigor mortis and subsequent resoluti...
A Novel Optical Encoding Scheme for Network Node Tracing in All-Optical Reconfigurable Wavelength Routing Networks
Optical Encoding Scheme Network Node All-Optical Reconfigurable Wavelength Routing Networks
2015/7/17
An optical prime-number-encoded tag is employed as distinct network node identifier so as to realize network node tracing in reconfigurable wavelength routing networks, via prime number multiplication...
The contact and immersion ultrasound methods compared using the ray tracing method
biometry ultrasound measurement immersion and contact method ray tracing
2011/5/6
The goal of this article was to compare the contact and immersion ultrasound methods using
simulated data. The pursued changes were interrelated with both the axial length of the eye and
with partia...
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...