国家自然科学基金(61121002)

作品数：7被引量：3H指数：1
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相关机构：北京大学哈尔滨工业大学更多>>
相关期刊：《Science China Mathematics》《智能计算机与应用》《Acta Mathematicae Applicatae Sinica》《Science Bulletin》更多>>
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Cheeger's cut, maxcut and the spectral theory of1-Laplacian on graphs被引量：1
《Science China Mathematics》2017年第11期1963-1980,共18页CHANG KungChing SHAO SiHong ZHANG Dong 
supported by National Natural Science Foundation of China (Grant Nos. 11371038, 11471025, 11421101 and 61121002)
This is primarily an expository paper surveying up-to-date known results on the spectral theory of1-Laplacian on graphs and its applications to the Cheeger cut, maxcut and multi-cut problems. The structure of eigenspa...
关键词：spectral graph theory Laplacian graph cut optimization critical point theory 
Editing Vector Graphics in the Virtual Simulation Environment
《Computer Aided Drafting,Design and Manufacturing》2014年第2期23-29,共7页SHI Xiao-long LAI Shun-nan 
Supported by National Basic Research Program of China (973 Program,No.2010CB328002);National Natural Science Foundation of China (Nos.61232014,61121002,61173080);National Key Technology Research and Development Program of China (No.2013BAK03B07)
We present a method to represent multi-resolution vector graphics such as road networks or railway networks in virtual environment. These vector data can be interactively edited and the landscape and be explored in re...
关键词：vector graphics virtual reality virtual globe 
一种基于人眼视觉特性的高效视频编码优化方法
《智能计算机与应用》2014年第5期44-46,49,共4页王苫社 赵德斌 高文 
国家自然科学基金(61121002)
基于HEVC(High Efficiency Video Coding)新的编码结构,本文提出了一种基于视觉特性的率失真优化方法。首先基于分歧归一化与量化之间的关系,提出了一种适合HEVC编码结构的视觉因子的计算方法,并提出使用非线性模型对视觉因子进行缩放,...
关键词：率失真 视觉优化 
Interaction between auditory and motor systems in speech perception被引量：2
《Neuroscience Bulletin》2014年第3期490-496,共7页Zhe-Meng Wu Ming-Li Chen Xi-Hong Wu Liang Li 
supported by the National Basic Research Development Program of China (2009CB320901, 2011CB707805, 2013CB329304);the National Natural Science Foundation of China (31170985, 91120001, 61121002);"985" project grants from Peking University
Based on the Motor Theory of speech perception, the interaction between the auditory and motor systems plays an essential role in speech perception. Since the Motor Theory was proposed, it has received remarkable atte...
关键词：auditory-motor interaction Motor Theory of speech perception motor cortex ＂cocktail-party＂ problem. 
Convergence Results of Landweber Iterations for Linear Systems
《Acta Mathematicae Applicatae Sinica》2014年第1期111-118,共8页Gang-rong QU Ming JIANG Yuan-jian YANG 
Supported by the National Natural Science Foundation of China(No.61071144,61271012,61121002,10990013)
The Landweber scheme is a method for algebraic image reconstructions. The convergence behavior of the Landweber scheme is of both theoretical and practical importance. Using the diagonalization of matrix, we derive a ...
关键词：algebraic image reconstruction Landweber scheme weighted least-squares convergence conditions 
Cosh-Hilbert变换反演的矩方法及其在单光子发射计算机断层成像中的应用(英文)
《计算物理》2013年第6期799-807,共9页罗守胜 杨建生 周铁 
Supported by National Basic Research Program of China(2011CB809105);Natural Science Foundation of China(61121002,10990013)
基于反演Hilbert变换的Tricomi公式和双曲余弦函数Taylor展开,给出一种反演双曲余弦Hilbert变换(CHT)的数值算法,并应用于单光子发射计算机断层成像.利用Taylor展开将函数的CHT变换表示为其Hilbert变换和由各阶矩组成的修正项.利用Tric...
关键词：SPECT Cosh-Hilbert变换 矩方法 
2-D shape completion with shape priors
《Chinese Science Bulletin》2013年第27期3430-3436,共7页GUO Ge JIANG TingTing WANG YiZhou GAO Wen 
supported by the National Basic Research Program of China (2009CB320904);the National Natural Science Foundation of China (61103087,61121002 and 61272027);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry
We propose new techniques for 2-D shape/contour completion, which is one of the important research topics related to shape analysis and computer vision, e.g. the detection of incomplete objects due to occlusion and no...
关键词：形状结构 计算机视觉 贝叶斯公式 电子相关 最佳估计 最小曲率 先验知识 仿射变换 
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