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北京大学 [61]

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期刊论文 [34]

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限定条件	专题：北京大学第一署名单位第一作者单位通讯作者单位

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	NUMERICAL OPTIMIZATION ALGORITHMS FOR WAVEFRONT PHASE RETRIEVAL FROM MULTIPLE MEASUREMENTS 其他 2017-01-01 Li, Ji; Zhou, Tie 收藏 \| 浏览/下载：5/0 \| 提交时间：2017/12/03 Wavefront phaseretrieval C-Rcalculus LBFGS FOURIER-TRANSFORM SIGNAL RECOVERY RECONSTRUCTION MAGNITUDE GRADIENT
	A two-stage adaptive stochastic collocation method on nested sparse grids for multiphase flow in randomly heterogeneous porous media 期刊论文 JOURNAL OF COMPUTATIONAL PHYSICS, 2017 Liao, Qinzhuo; Zhang, Dongxiao; Tchelepi, Hamdi 收藏 \| 浏览/下载：2/0 \| 提交时间：2017/12/03 Adaptive stochastic collocation method Nested sparse grids Two-stage approach Multiphase flow Heterogeneous porous media PARTIAL-DIFFERENTIAL-EQUATIONS RANDOM INPUT DATA PROBABILISTIC COLLOCATION UNCERTAINTY TRANSFORM TRANSPORT EXPANSIONS QUADRATURE EFFICIENT
	Reducing Image Compression Artifacts by Structural Sparse Representation and Quantization Constraint Prior 期刊论文 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2017 Zhao, Chen; Zhang, Jian; Ma, Siwei; Fan, Xiaopeng; Zhang, Yongbing; Gao, Wen 收藏 \| 浏览/下载：9/0 \| 提交时间：2017/12/03 Blocking artifact reduction image deblocking optimization quantization constraint (QC) sparse representation TRANSFORM-DOMAIN BLOCKING ARTIFACTS JPEG DECOMPRESSION CODING ARTIFACTS DEBLOCKING REDUCTION RESTORATION SIMILARITY STANDARD DCT
	Nonlocal Gradient Sparsity Regularization for Image Restoration 期刊论文 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2017 Liu, Hangfan; Xiong, Ruiqin; Zhang, Xinfeng; Zhang, Yongbing; Ma, Siwei; Gao, Wen 收藏 \| 浏览/下载：8/0 \| 提交时间：2017/12/03 Content-adaptive modeling gradient sparsity image restoration nonlocal (NL) similarity total variation (TV) regularization TOTAL VARIATION MINIMIZATION ADAPTIVE TOTAL VARIATION ARTIFACT REDUCTION TRANSFORM-DOMAIN NOISE REMOVAL RECONSTRUCTION ALGORITHM RECOVERY SUPERRESOLUTION DECONVOLUTION
	Phase Noise Estimation and Suppression for PDM CO-OFDM/OQAM Systems 期刊论文 JOURNAL OF LIGHTWAVE TECHNOLOGY, 2017 Fang, Xi; Zhang, Fan 收藏 \| 浏览/下载：34/0 \| 提交时间：2017/12/03 Coherent communication laser phase noise optical communication orthogonal frequency-division multiplexing/offset quadrature amplitude modulation (OFDM/OQAM) phase noise estimation COHERENT OPTICAL OFDM CHANNEL ESTIMATION SINGLE PHOTODIODE TRANSMISSION OFFSET SSMF SUPERCHANNEL TOLERANCE FIBER COMPENSATION
	DCT Regularized Extreme Visual Recovery 期刊论文 IEEE TRANSACTIONS ON IMAGE PROCESSING, 2017 Wang, Yunhe; Xu, Chang; You, Shan; Xu, Chao; Tao, Dacheng 收藏 \| 浏览/下载：4/0 \| 提交时间：2017/12/03 Discrete cosine transform visual recovery DCT regularizer Low-rank minimization DISCRETE COSINE TRANSFORM MATRIX COMPLETION LOW-RANK CONSTRAINED OPTIMIZATION IMAGE MINIMIZATION NORM RESTORATION ALGORITHMS DOMAIN
	Identifying the urban-rural fringe using wavelet transform and kernel density estimation: A case study in Beijing City, China 期刊论文 ENVIRONMENTAL MODELLING & SOFTWARE, 2016 Peng, Jian; Zhao, Shiquan; Liu, Yanxu; Tian, Lu 收藏 \| 浏览/下载：6/0 \| 提交时间：2017/12/03 Urban-rural fringe Spatial continuous wavelet transform Kernel density estimation Land use degree index Beijing City ECOLOGICAL BOUNDARIES LANDSCAPE STRUCTURE CARBON STORAGE UNITED-STATES URBANIZATION EXPANSION SELECTION DYNAMICS IMPACTS MODEL
	Adaptive multi-dimension sparsity based coefficient estimation for compression artifact reduction 其他 2016-01-01 Mu, Jing; Zhang, Xinfeng; Xiong, Ruiqin; Ma, Siwei; Gao, Wen 收藏 \| 浏览/下载：4/0 \| 提交时间：2017/12/03
	Universal Demosaicking of Color Filter Arrays 期刊论文 IEEE TRANSACTIONS ON IMAGE PROCESSING, 2016 Zhang, Chao; Li, Yan; Wang, Jue; Hao, Pengwei 收藏 \| 浏览/下载：3/0 \| 提交时间：2017/12/03 Demosaicking color filter array linear combination matrix pseudo-inverse INTERPOLATION ALGORITHM DESIGN
	Transform-Domain In-Loop Filter with Block Similarity for HEVC 其他 2016-01-01 Zhang, Xinfeng; Lin, Weisi; Gu, Ke; Li, Qiaohong; Wang, Shanshe; Ma, Siwei 收藏 \| 浏览/下载：3/0 \| 提交时间：2017/12/03 In-loop filter HEVC block similarity transform coefficient estimation

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