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检索条件"主题词=RAY tracing algorithms"
59 条 记 录,以下是1-10 订阅
排序:
A NOVEL ray-tracing TECHNIQUE FOR INDOOR RADIO SIGNAL PREDICTION
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JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS 2011年 第8-9期25卷 1179-1190页
作者: Sarker, M. S. Reza, A. W. Dimyati, K. Univ Malaya Fac Engn Dept Elect Engn Kuala Lumpur 50603 Malaysia
The potential implementation of personal communication systems inside buildings requires a thorough understanding of signal propagation within buildings. As practical measurements are costly, difficult in accuracy, an... 详细信息
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A ray tracing Approach to Diffusion Curves
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COMPUTER GRAPHICS FORUM 2011年 第4期30卷 1345-1352页
作者: Bowers, John C. Leahey, Jonathan Wang, Rui Univ Massachusetts Amherst Amherst MA 01003 USA
Diffusion curves [OBW+ 08] provide a flexible tool to create smooth-shaded images from curves defined with colors. The resulting image is typically computed by solving a Poisson equation that diffuses the curve colors... 详细信息
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Numerical Method of the ray tracing-Node Analyzing Method for Solving 2-D Transient Coupled Heat Transfer in a Rectangular Semitransparent Medium
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NUMERICAL HEAT TRANSFER PART A-APPLICATIONS 2009年 第5期55卷 465-486页
作者: Luo, Jian-Feng Shen, Xi Natl Univ Def Technol Coll Sci Dept Phys Changsha 410073 Hunan Peoples R China
For the ray tracing-node analyzing method for solving 2-D transient coupled heat transfer, the transient differential energy equation is discretized using the fully implicit finite-difference method and the radiative ... 详细信息
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ReduceM: Interactive and memory efficient ray tracing of large models
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COMPUTER GRAPHICS FORUM 2008年 第4期27卷 1313-1321页
作者: Lauterbach, Christian Yoon, Sung-eui Tang, Ming Manocha, Dinesh Univ N Carolina Chapel Hill NC 27515 USA Korea Adv Inst Sci & Technol Taejon South Korea Zhejiang Univ Hangzhou Peoples R China
We present a novel representation and algorithm, ReduceM, for memory efficient ray tracing of large scenes. ReduceM exploits the connectivity between triangles in a mesh and decomposes the model into triangle strips. ... 详细信息
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An Improved Method of Linear Travel-Time Interpolation ray tracing Algorithm
ACTA PHYSICA POLONICA A
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ACTA PHYSICA POLONICA A 2010年 第4期118卷 521-526页
作者: Hao-Quan, W. North Univ China Key Lab Instrument Sci & Dynam Measurement Minist Educ Natl Key Lab Sci & Technol Elect Test & Measureme Taiyuan 030051 Shanxi Peoples R China
The linear travel-time interpolation algorithm is improved by the method of ray tracing based on finite difference scheme of eikonal equation. It can simulate the more complex medium. Using the algorithm to calculate ... 详细信息
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Modelling diffraction during ray tracing using the concept of energy flow lines
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JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 2008年 第8期109卷 1374-1383页
作者: Hesse, E. Univ Hertfordshire Sci & Technol Res Inst Hatfield AL10 9AB Herts England
The ray-tracing with diffraction on facets (RTDF) model is suitable for rapid computation of scattering on faceted dielectric objects such as ice crystals. It combines ray tracing with diffraction on flat facets. The ... 详细信息
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Development and verification of an MOC code employing assembly modular ray tracing and efficient acceleration techniques
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ANNALS OF NUCLEAR ENERGY 2009年 第8期36卷 1013-1020页
作者: Tang, Chuntao Zhang, Shaohong Shanghai Jiao Tong Univ Sch Nucl Sci & Engn Shanghai 200240 Peoples R China
In this paper, we report the development and verification of a method of characteristics (MOC) code, PEACH, at Shanghai Jiao Tong University. Both the usual flat-source step characteristics (SC) scheme and the linear ... 详细信息
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Spectral ray tracing in Problems of Photorealistic Imagery Construction
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PROGRAMMING AND COMPUTER SOFTWARE 2011年 第5期37卷 236-244页
作者: Zhdanov, D. D. Potemin, I. S. Galaktionov, V. A. Barladyan, B. Kh. Vostryakov, K. A. Shapiro, L. Z. SI Vavilov State Opt Inst St Petersburg 199034 Russia Russian Acad Sci MV Keldysh Appl Math Inst Moscow 125047 Russia
This paper analyzes color rendering problems arising in computer imaging of scenes with complex optical properties. The sources of these errors for imagery constructed on the basis of the RGB space are analyzed and an... 详细信息
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Model of Inhomogeneous building facade for ray tracing method
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ELECTRONICS LETTERS 2008年 第23期44卷 1341-1342页
作者: Kwon, S. Koh, I-S. Moon, H-W. Lim, J-W. Yoon, Y. J. Yonsei Univ Dept Elect & Elect Engn Microwave & Antenna Lab Seoul 120749 South Korea Inha Univ Grad Sch Informat Technol & Telecommun Inchon South Korea Minist Informat & Commun Radio Res Lab Seoul 140848 South Korea
A model for considering the scattering effect of an inhomogeneous building facade as an effective reflection coefficient of a homogeneous surface in a ray tracing method is proposed. Hence, the computational complexit... 详细信息
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Full automatic preprocessing of digital map for 2.5D ray tracing propagation model in urban microcellular environment
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WAVES IN RANDOM AND COMPLEX MEDIA 2013年 第3期23卷 267-278页
作者: Liu, Zhong-Yu Guo, Li-Xin Tao, Wei Xidian Univ Sch Sci Xian Peoples R China
Due to the importance of digital map to ray-tracing (RT) algorithm, intelligent preprocessing techniques for the geometric information of buildings are improved, taking into account the characteristic of quasi three-d... 详细信息
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