检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

2,140 篇 会议
19 篇 期刊文献
8 册 图书

馆藏范围

2,167 篇 电子文献
1 种 纸本馆藏

日期分布

学科分类号

1,257 篇 工学
- 734 篇 计算机科学与技术...
- 580 篇 电气工程
- 393 篇 信息与通信工程
- 369 篇 软件工程
- 120 篇 电子科学与技术（可...
- 109 篇 光学工程
- 92 篇 生物医学工程（可授...
- 73 篇 仪器科学与技术
- 59 篇 控制科学与工程
- 48 篇 测绘科学与技术
- 43 篇 机械工程
- 23 篇 生物工程
- 21 篇 轻工技术与工程
- 16 篇 化学工程与技术
- 15 篇 材料科学与工程（可...
- 12 篇 航空宇航科学与技...
- 10 篇 力学（可授工学、理...
942 篇 理学
- 563 篇 数学
- 501 篇 物理学
- 58 篇 统计学（可授理学、...
- 50 篇 系统科学
- 30 篇 生物学
- 17 篇 化学
366 篇 医学
- 353 篇 临床医学
- 29 篇 基础医学(可授医学...
- 26 篇 特种医学
- 25 篇 药学(可授医学、理...
48 篇 管理学
- 32 篇 管理科学与工程(可...
- 20 篇 图书情报与档案管...
15 篇 法学
- 10 篇 法学
6 篇 军事学
4 篇 农学
2 篇 教育学
2 篇 艺术学
1 篇 经济学
1 篇 文学

主题

387 篇 wavelet transfor...
310 篇 discrete wavelet...
271 篇 image coding
188 篇 image processing
176 篇 wavelets
161 篇 signal processin...
114 篇 wavelet transfor...
109 篇 image compressio...
102 篇 image reconstruc...
94 篇 wavelet analysis
89 篇 feature extracti...
82 篇 signal processin...
73 篇 image segmentati...
72 篇 image resolution
70 篇 watermarking
66 篇 noise reduction
64 篇 filter bank
64 篇 psnr
64 篇 discrete wavelet...
62 篇 transform coding

机构

7 篇 rice univ dept e...
5 篇 rice univ dept m...
5 篇 maharishi school...
5 篇 swiss fed inst t...
4 篇 swiss fed inst t...
4 篇 rice univ dept e...
4 篇 department of el...
4 篇 rice univ housto...
3 篇 univ arizona col...
3 篇 mks imaging tech...
3 篇 centre of resear...
3 篇 cnr iroe nello c...
3 篇 school of scienc...
3 篇 univ illinois de...
3 篇 indian inst tech...
3 篇 mohammed bin ras...
3 篇 tel aviv univ sc...
3 篇 polytech univ br...
3 篇 ctr math & comp ...
3 篇 school of comput...

作者

19 篇 unser m
9 篇 alparone l
9 篇 baraniuk r
8 篇 blu t
8 篇 choi h
7 篇 gholamreza anbar...
7 篇 ebrahimi t
7 篇 hasan demirel
6 篇 vetterli m
6 篇 jones kj
6 篇 ramchandran k
6 篇 szu h
6 篇 do mn
5 篇 averbuch az
5 篇 demirel hasan
5 篇 baronti s
5 篇 aldroubi a
5 篇 cohen l
5 篇 anbarjafari ghol...
5 篇 olmo g

语言

2,079 篇 英文
64 篇 土耳其文
14 篇 中文
10 篇 其他

检索条件"任意字段=Conference on Wavelet Applications in Signal and Image Processing VIII"

共 2167 条记录，以下是51-60 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

image data compression with three-directional splines

Image data compression with three-directional splines

引用

conference on wavelet applications in signal and image processing viii

作者： Charina, M Conti, C Jetter, K Univ Hohenheim Inst Angew Math & Stat D-70593 Stuttgart Germany

ISBN: (纸本)0819437646

In this paper we consider a new method for image data compression. It is based on three-directional spline functions of low degree, viz. piecewise constant functions, and piecewise cubic C-1-functions. In the first case a Haar wavelet type decomposition can be derived, and combined with standard thresholding techniques. In the second case, due to the fact that a spline basis is given by convolution products, the wavelet decomposition and thresholding can be computed on one factor of the convolution product only. Performance of the proposed method is discussed in section 3 where the reconstructed pictures are compared with the ones produced by the analogous decomposition methods provided by the MATLAB wavelet toolbox.

关键词： three-directional splines wavelets data compression thresholding cardinal interpolation

来源：评论

学校读者我要写书评

暂无评论

Gerchberg-Papoulis algorithm and the finite Zak transform

Gerchberg-Papoulis algorithm and the finite Zak transform

引用

conference on wavelet applications in signal and image processing viii

作者： Brodzik, AK Tolimieri, R Sci Software Woburn MA 01801 USA

ISBN: (纸本)0819437646

We propose a new, time-frequency formulation of the Gerchberg-Papoulis algorithm for extrapolation of bandlimited signals. The new formulation is obtained by translating the constituent operations of the Gerchberg-Papoulis procedure, the truncation and the Fourier transform, into the language of the finite Zak transform, a time-frequency tool intimately related to the Fourier transform. We will show that the use of the Zak transform results in a significant reduction of the computational complexity of the Gerchberg-Papoulis procedure and in an increased flexibility of the algorithm.

关键词： Gerchberg-Papoulis algorithm signal extrapolation Zak transform

来源：评论

学校读者我要写书评

暂无评论

image compression with adaptive Haar-Walsh tilings

Image compression with adaptive Haar-Walsh tilings

引用

conference on wavelet applications in signal and image processing viii

作者： Lindberg, M Villemoes, LF Abo Akad Univ Dept Math Turku Finland

ISBN: (纸本)0819437646

We perform adaptive joint space and frequency tilings including all levels in the Haar-Walsh wavelet packet tree for two-dimensional signals. The method gives surprisingly good results in terms of nonlinear approximation. The visual quality of the compressed images with this method is the same as the quality using twice the number of coefficients for wavelets and standard wavelet packets when Haar filters are used. When all levels are allowed the cost for description of the location of the winning coefficients is not negligible. A tiling information vector is introduced for description of the chosen basis and the original image can be easily and quickly reconstructed using this information. For image compression this tiling information vector is compressed to only those nodes which correspond to kept coefficients, and this makes the adaptive scheme competitive.

关键词： anisotropic wavelet packets best basis space-frequency transform Haar filter Walsh functions image coding

来源：评论

学校读者我要写书评

暂无评论

Setting priorities: a new SPIHT-compatible algorithm for image compression

Setting priorities: a new SPIHT-compatible algorithm for ima...

引用

conference on wavelet applications in signal and image processing viii

作者： Dugatkin, D Effros, M CALTECH Dept Elect Engn Pasadena CA 91125 USA

ISBN: (纸本)0819437646

We introduce a new algorithm for progressive or multiresolution image compression. The algorithm improves on the Set Partitioning in Hierarchical Trees (SPIHT) algorithm by replacing the SPIHT encoder. The new encoder optimizes the multiresolution code performance relative to a user-defined probability distribution (or priority function) over the code's rates or resolutions. The new algorithm's decoder is identical to the SPIHT decoder. The resulting code achieves the optimal expected performance across resolutions subject to the constraints imposed by the use of the SPIHT decoder and the distribution (or priorities) over resolutions set by the user. The encoder optimization yields performance improvements at the rates or resolutions of greatest importance (according to the encoder's priority function) at the expense of performance degradation at low priority rates or resolutions. The algorithm is fully compatible at the decoder with the original SPIHT algorithm. In particular, the decoder requires no knowledge of the priority function employed at the encoder. Experimental results on an image containing both text and photographic material yield up to 0.86 dB performance improvement over SPIHT at the resolution of highest priority.

关键词： multiresolution source coding successive refinement compression algorithms SPIHT wavelets priorities

来源：评论

学校读者我要写书评

暂无评论

Learning sparse wavelet codes for natural images

Learning sparse wavelet codes for natural images

引用

conference on wavelet applications in signal and image processing viii

作者： Olshausen, BA Sallee, P Lewicki, MS Univ Calif Davis Dept Psychol Davis CA 95616 USA

ISBN: (纸本)0819437646

We show how a wavelet basis may be adapted to best represent natural images in terms of sparse coefficients. The wavelet basis, which may be either complete or overcomplete, is specified by a small number of spatial functions which are repeated across space and combined in a recursive fashion so as to be self-similar across scale. These functions are adapted to minimize the estimated code length under a model that assumes images are composed as a linear superposition of sparse, indepedent components. When adapted to natural images, the wavelet bases become selective to different spatial orientations. and they achieve a superior degree of sparsity on natural images as compared with traditional wavelet bases.

关键词： wavelets sparse coding overcomplete representation natural images

来源：评论

学校读者我要写书评

暂无评论

On a discrete wavelet approach to multifractality

On a discrete wavelet approach to multifractality

引用

conference on wavelet applications in signal and image processing viii

作者： Isaacson, SI Gabbanelli, SC Busch, JR Univ Buenos Aires Fac Ingn Dept Matemat RA-1063 Buenos Aires DF Argentina

ISBN: (纸本)0819437646

The use of wavelet techniques for the multifractal analysis generalizes the box counting approach, and in addition provides information on eventual deviations of multifractal behavior. By the introduction of a wavelet partition function W-q and its corresponding free energy beta (q), the discrepancies between beta (q) and the multifractal free energy tau (q) are shown to be indicative of these deviations. We study with Daubechies wavelets (D-4) some one dimensional examples previously treated with Haar wavelets, and we apply the same ideas to some two dimensional Monte Carlo configurations, that simulate a solution under the action of an attractive potential. In this last case, we study the influence in the multifractal spectra and partition functions of four physical parameters: the intensity of the pairwise potential, the temperature, the range of the model potential, and the concentration of the solution. The wavelet partition function W-q carries more information about the cluster statistics than the multifractal partition function Z(q), and the location of its peaks contributes to the determination of characteristic scales of the measure. In our experiences, the information provided by Daubechies wavelets is slightly more accurate than the one obtained by Haar wavelets.

关键词： multifractal wavelet Monte Carlo simulation

来源：评论

学校读者我要写书评

暂无评论

Feature preserving lossy image compression using nonlinear PDE's

Feature preserving lossy image compression using nonlinear P...

引用

SPIE conference on Advanced signal processing Algorithms, Architectures, and Implementations viii

作者： Chan, TF Zhou, HM Univ Calif Los Angeles Dept Math Los Angeles CA 90095 USA

ISBN: (纸本)0819429163

In this report, we propose combining the Total Variation denoising method with the high loss wavelet compression for high noise level images. Numerical experiments show that TV-denoising can bring more wavelet coefficients closer to zero thereby making the compression more efficient while the salient features (edges) of the images can still be retained.

关键词： image compression wavelets Denoising Tolerancing wavelet transforms image processing image quality Palladium Automatic target recognition image storage

来源：评论

学校读者我要写书评

暂无评论

High resolution formant estimation and its application in frequency-scaling of speech

High resolution formant estimation and its application in fr...

引用

conference on wavelet applications in signal and image processing viii

作者： Nelson, D Umesh, S Cohen, L US Dept Def Ft Meade MD 20755 USA

ISBN: (纸本)0819437646

We present a method for accurate estimation of formant frequencies. The method is based on differentiating the phase of the short time Fourier transform. The motivation for the method is its application to the estimation of the recently introduced "universal warping function" which is aimed at separating the speaker dependence from the phonetic content of a speech utterance. The universal warping function is determined by the nature of the relationship between formants of different speakers for phonetically similar sounds and requires an accurate estimate of formants, The proposed method provides sufficiently accuracy for its estimation.

关键词： Fourier transforms Electronic filtering Statistical analysis Error analysis Defense and security Factor analysis image processing Physics signal processing wavelets

来源：评论

学校读者我要写书评

暂无评论

Curvelets and reconstruction of images from noisy radon data

Curvelets and reconstruction of images from noisy radon data

引用

conference on wavelet applications in signal and image processing viii

作者： Candes, EJ Donoho, DL Stanford Univ Dept Stat Stanford CA 94305 USA

ISBN: (纸本)0819437646

The problem of recovering an input signal from noisy and linearly distorted data arises in many different areas of scientific investigation;e.g., noisy Radon inversion (tomography) is a problem of special interest and considerable practical relevance in medical imaging. We will argue that traditional methods for solving inverse problems - damping of the singular value decomposition (SVD) or cognate methods - behave poorly when the object to recover has edges. We apply a new system of representation, namely, the curvelets in this setting. Curvelets provide near-optimal representations of otherwise smooth objects with discontinuities along smooth C-2 edges. Inspired by some recent work on nonlinear estimation, we construct a curvelet-based biorthogonal decomposition of the Radon operator and build a reconstruction based on the shrinkage (or thresholding) of the noisy curvelet coefficients. This novel approach is shown to give a new theoretical understanding of the problem of edges in the Radon inversion problem.

关键词： ill-posed inverse problems regularization singular value decomposition Radon transform deconvolution edge edge-preserving regularization wavelet-vaguelette-decomposition

来源：评论

学校读者我要写书评

暂无评论

Minimum-redundancy ISI-free FIR filterbank transceivers

Minimum-redundancy ISI-free FIR filterbank transceivers

引用

conference on wavelet applications in signal and image processing viii

作者： Lin, YP Phoong, SM Natl Chiao Tung Univ Dept Elect & Comp Engn Hsinchu Taiwan

ISBN: (纸本)0819437646

The discrete multitone modulation system (DMT) has been demonstrated to be a very useful technique for high speed transmission over frequency selective channels such as the digital subscriber loops. The DR IT system can be realized using a filterbank transceiver, the synthesis bank as the transmitter and the analysis bank as the receiver. With proper time domain equalization, the channel call usually be modeled as an FIR filter with order L. It is known that if a redundancy of length L is introduced, FIR filterbank transceivers with zero ISI (Inter-Symbol Interference) property can be achieved. For example, in DFT based DMT system, redundancy is introduced by adding a cyclic prefix of length L. In this paper, we will derive the minimum length of redundancy required for FIR filterbank transceivers with ISI Free property. For a give channel, we will show that the minimum length is directly related to the Smith form of an appropriately defined channel matrix.

关键词： Transceivers Optical filters Finite impulse response filters Matrices Transmitters Receivers Modulation signal to noise ratio wavelets signal processing

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共217页 << < 2 3 4 5 6 7 8 9 10 11 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：