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

747 篇 会议
201 篇 期刊文献
5 册 图书

馆藏范围

953 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

401 篇 工学
- 179 篇 计算机科学与技术...
- 146 篇 软件工程
- 143 篇 电气工程
- 141 篇 信息与通信工程
- 91 篇 电子科学与技术（可...
- 53 篇 控制科学与工程
- 51 篇 光学工程
- 38 篇 生物医学工程（可授...
- 37 篇 仪器科学与技术
- 27 篇 生物工程
- 21 篇 机械工程
- 10 篇 力学（可授工学、理...
- 10 篇 材料科学与工程（可...
- 10 篇 土木工程
- 10 篇 化学工程与技术
- 10 篇 航空宇航科学与技...
- 9 篇 动力工程及工程热...
235 篇 理学
- 128 篇 数学
- 107 篇 物理学
- 52 篇 统计学（可授理学、...
- 36 篇 生物学
- 18 篇 系统科学
- 12 篇 化学
62 篇 管理学
- 32 篇 管理科学与工程(可...
- 30 篇 图书情报与档案管...
- 9 篇 工商管理
28 篇 医学
- 22 篇 临床医学
- 20 篇 基础医学(可授医学...
- 12 篇 药学(可授医学、理...
11 篇 文学
- 11 篇 新闻传播学
8 篇 农学
4 篇 经济学
3 篇 法学
1 篇 教育学
1 篇 军事学

主题

113 篇 laboratories
104 篇 signal processin...
59 篇 signal processin...
45 篇 image coding
45 篇 fractals
44 篇 feature extracti...
38 篇 signal analysis
36 篇 image processing
34 篇 robustness
33 篇 neural networks
33 篇 hyperspectral im...
32 篇 data compression
32 篇 frequency
28 篇 pixel
28 篇 finite impulse r...
25 篇 remote sensing
24 篇 signal to noise ...
24 篇 bandwidth
24 篇 algorithm design...
24 篇 image reconstruc...

机构

37 篇 department of el...
33 篇 state key labora...
24 篇 department of el...
22 篇 institute of mic...
21 篇 signal and image...
20 篇 department of el...
20 篇 signal and data ...
16 篇 remote sensing s...
15 篇 remote sensing s...
14 篇 department of el...
13 篇 remote sensing s...
11 篇 national mobile ...
11 篇 laboratory of si...
10 篇 signal compressi...
10 篇 university of ma...
10 篇 department of el...
10 篇 remote sensing s...
9 篇 digital signal p...
9 篇 department of ra...
9 篇 university of ma...

作者

68 篇 w. kinsner
35 篇 chein-i chang
30 篇 jafar saniie
26 篇 chi-seng lam
24 篇 chang chein-i
24 篇 lam chi-seng
17 篇 gardner wa
15 篇 amir k. khandani
15 篇 chang chein-i.
15 篇 gabbouj moncef
13 篇 iosifidis alexan...
13 篇 xinrui yu
12 篇 s.k. mitra
12 篇 hsiao-chun wu
11 篇 daniel massicott...
10 篇 gong cheng
10 篇 saniie jafar
10 篇 man-chung wong
9 篇 sou wai-kit
9 篇 j. mcnames

语言

927 篇 英文
21 篇 其他
5 篇 中文

检索条件"机构=Signal Compression Laboratory Department of Electrical and Computer Engineering"

共 953 条记录，以下是731-740 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：

Enhancing waveform interpolative coding with weighted REW parametric quantization

Enhancing waveform interpolative coding with weighted REW pa...

引用

IEEE Workshop on Speech Coding Proceedings

作者： O. Gottesman A. Gersho Dept. of Electr. & Comput. Eng. California Univ. Santa Barbara CA USA Signal Compression Laboratory Department of Electrical and Computer Engineering University of California Santa Barbara CA USA

This paper presents an efficient quantization technique for the rapidly-evolving waveforms in waveform interpolative (WI) coders. The scheme, based on a parametrization of the rapidly-evolving waveform (REW) magnitude, and analysis-by-synthesis (AbS) vector quantization (VQ) of the REW parameters, allows both higher temporal and spectral resolution of the REW. A perceptually weighted distortion measure takes advantage of spectral and temporal masking and leads to improved reconstructed speech quality, most notably in mixed voiced and unvoiced speech segments. The technique is an important component of the enhanced waveform interpolative (EWI) speech coder at 2.8 kbps that achieves a subjective quality slightly better than that of G.723.1 at 6.3 kbps.

关键词： Quantization Distortion measurement Laboratories Frequency Weight measurement Speech coding Interpolation Bit rate Piecewise linear techniques Speech enhancement

来源：评论

学校读者我要写书评

暂无评论

Impact of low-rate sampling on the reconstruction of ECG in phase-space

Impact of low-rate sampling on the reconstruction of ECG in ...

引用

Canadian Conference on electrical and computer engineering (CCECE)

作者： B. Huang W. Kinsner Dept. of Electr. & Comput. Eng. Manitoba Univ. Winnipeg Man. Canada Department of Electrical and Computer Engineering Signal and Data Compression Laboratory University of Manitoba Winnipeg MAN Canada

This paper examines the chaotic and multifractal characteristics of the electrocardiogram (ECG) through its time series. Although multifractalities exist in the reconstructed strange attractor we find some limitations of strange attractor reconstruction from low-rate sampled (333 Hz) ECG signals by investigating the convergence of the false nearest neighbours and the Renyi dimension. The reconstruction parameters, lag of 4 and embedding dimension of 7, are obtained from experiments.

关键词： Sampling methods Electrocardiography Biomedical measurements Nonlinear dynamical systems Fractals Chaos Convergence Rhythm Time measurement Frequency

来源：评论

学校读者我要写书评

暂无评论

Comparison of techniques for estimating the frequency selectivity of bandlimited channels

Comparison of techniques for estimating the frequency select...

引用

IEEE Region 10 International Conference TENCON

作者： A.Z. Sha'ameri Digital Signal Processing Laboratory Department of Microelectronics and Computer Engineering Faculty of Electrical Engineering Universiti Teknologi Malaysia Skudai Johor Malaysia

A transmission channel used in application such as telecommunications can be modeled as a bandpass filter. Measurement of the frequency selectivity of the channel is important to ensure that the information-bearing signal has minimal distortion and loss of information. A comparison is made for several methods used for estimating the frequency selectivity of the transmission. The methods presented are the correlation method, instantaneous energy and frequency estimation and the cross Wigner-Ville distribution. The theoretical foundations and assumptions are described for each method. In general, all the methods gave similar performance in terms of the frequency selectivity. Due to the shorter analysis duration, both the instantaneous energy and frequency estimation and cross Wigner-Ville distribution is ideal for estimating the frequency selectivity of time-varying channels.

关键词： Frequency estimation Correlation Autocorrelation Linear systems Finite impulse response filter Nonlinear filters Band pass filters Binary sequences Linear feedback shift registers Chebyshev approximation

来源：评论

学校读者我要写书评

暂无评论

Moving object segmentation based on human visual sensitivity 1st

引用

1st IEEE International Workshop on Biologically Motivated computer Vision, BMCV 2000

作者： Yoon, Kuk-Jin Kweon, In-So Kim, Chang-Yeong Seo, Yang-Seok Department of Electrical Engineering and Computer Science KAIST 373-1 Kusong-dong Yusong-ku Taejon305-701 Korea Republic of Signal Processing Laboratory Samsung Advanced Institute of Technology P.O. Box 111 Suwon440-660 Korea Republic of

ISBN: (纸本)3540675604

The edge and motion are the main features that human visual system (HVS) perceives intensively. This paper proposes an algorithm for the segmentation of the moving object with accurate boundary using color and motion focusing on the HVS perception in the general image sequence. The proposed algorithm is composed of three parts: color segmentation, motion analysis, and region refinement and merging part. In the color segmentation phase, K-Means algorithm is used in consideration of the sensitivity of the human color perception to get the boundaries that HVS perceives. The global and local motion estimation are performed in parallel with color analysis. After that, Bayesian clustering using color and motion provides more accurate boundary. In the final stage, regions are merged taking into account their motion. The experimental results of the proposed algorithm show the accurate moving object boundary coinciding with the boundary that HVS perceives. © Springer-Verlag Berlin Heidelberg 2000.

关键词： Color

来源：评论

学校读者我要写书评

暂无评论

A new adaptive algorithm for stereophonic acoustic echo canceller

A new adaptive algorithm for stereophonic acoustic echo canc...

引用

International Conference on Acoustics, Speech, and signal Processing (ICASSP)

作者： Yang-Won Jung Ji-Ha Lee Young-Cheol Park Dae-Hee Youn ASSP Laboratory Department of Electrical and Computer Engineering Yonsei University South Korea Center for Signal Processing Research Yonsei University South Korea

Stereophonic sound becomes more important in a growing number of hands-free applications where spatial realism is demanded. Such hands-free systems need stereophonic acoustic echo cancellers to reduce echoes that result from coupling between loudspeakers and microphones. In this paper, we propose a new adaptive algorithm for an stereophonic acoustic echo canceller based on human auditory properties and affine projection (AP) algorithm. The proposed algorithm employs a pre-processor generating speech-like noise to decorrelate the input signals without degrading perceptual speech quality. The decorrelation is based on the masking patterns of the human auditory system. By showing that the AP algorithm can be represented by a vector update as a combination of the Gram-Schmidt (GS) orthogonalization followed by the normalized LMS (NLMS) algorithm, the proposed adaptive algorithm integrates the pre-processor into the adaptive algorithm. Subjective listening test and computer simulation show the effectiveness of the proposed algorithm.

关键词： Adaptive algorithm Echo cancellers Humans Decorrelation Loudspeakers Microphones signal generators Acoustic noise Noise cancellation Noise generators

来源：评论

学校读者我要写书评

暂无评论

Unsupervised seed determination for a region-based color image segmentation scheme

Unsupervised seed determination for a region-based color ima...

引用

IEEE International Conference on Image Processing

作者： N. Ikonomakis K.N. Pataniotis A.N. Venetsanopoulos Department of Electrical and Computer Engineering Digital Signal & Image Processing Laboratory University of Toronto Toronto ONT Canada University of Toronto Toronto ON CA

ISBN: (纸本)0780362977

A color image segmentation technique is presented for use in coding and/or compression of video-conferencing sequences. The proposed technique utilizes the perceptual HSI (hue, saturation, intensity) color space and incorporates an unsupervised seed determination algorithm that finds the seed pixels that are in the spatial center of the regions in the image. The algorithm employs a hierarchy system where seeds found at the highest level produce the best results. The region growing algorithm uses these seeds to grow regions by appending to each seed pixel those neighboring pixels that satisfy a certain homogeneity criterion. The technique is found to be robust and relatively computationally inexpensive. The effectiveness of the algorithm is found to be much improved over techniques used in the past.

关键词： Color Image segmentation Pixel Image coding Image converters signal processing Image processing Laboratories Robustness Partitioning algorithms

来源：评论

学校读者我要写书评

暂无评论

A target-constrained interference-minimized filter for subpixel target detection in hyperspectral imagery

A target-constrained interference-minimized filter for subpi...

引用

IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Hsuan Ren Chein-I Chang Remote Sensing Signal and Image Processing Laboratory Department of Computer Science and Electrical Engineering University of Maryland Baltimore County Baltimore MD USA

Due to significantly improved high spatial and spectral resolution hyperspectral sensors can now uncover many material substances which cannot be resolved by multispectral sensors. However, this also comes at a price that many unknown and unidentified signal sources, referred to as interferers may also be extracted unexpectedly. Such interferers generally introduce additional noise effects on target detection and its factor must be taken into account. The problem associated with this interference is challenging because interference is generally unknown in nature and cannot be identified from an image scene. This paper presents a target-onstrained interference-minimized filter (TCIMF) which does not require to identify interferers, but can minimize the effects caused by interference. In addition, the TCIMF also separates undesired targets from the desired targets so that the TCIMF can eliminate undesired targets while detecting the desired targets and minimizing interfering effects. Most attractively, these three operations can be carried out by a single process in real time implementation.

关键词： Filters Object detection Hyperspectral sensors Layout Hyperspectral imaging Interference constraints Image resolution signal resolution Image sensors Image analysis

来源：评论

学校读者我要写书评

暂无评论

Unsupervised fully constrained squares linear spectral mixture analysis method for multispectral imagery

Unsupervised fully constrained squares linear spectral mixtu...

引用

IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： D.C. Heinz Chein-I Chang Remote Sensing Signal and Image Processing Laboratory Department of Computer Science and Electrical Engineering University of Maryland Baltimore County Baltimore MD USA

Subpixel detection and quantification of materials in multispectral imagery presents a challenging problem due to a relatively low number of spectral bands available for analysis in which case the number of spectral bands may be less than the number of materials to be detected and quantified. The problem is even more difficult when the image scene is unknown and no prior knowledge is available. Under this circumstance, the desired information must be obtained directly from the image data. The authors present an unsupervised least squares-based linear mixture analysis method coupled with a band expansion technique for multispectral image analysis. This method allows the authors to extract necessary endmember information from an unknown image scene so that the endmembers present in the image can be detected and quantified. The band expansion technique creates additional bands from the existing multispectral bands using band-to-band nonlinear correlation. These expanded bands ease the problem of insufficient bands in multispectral imagery and can improve and enhance the performance of the proposed method. The experimental results demonstrate the advantages of the proposed approach.

关键词： Least squares methods Spectral analysis Multispectral imaging Layout Image analysis Vectors Hyperspectral sensors Hyperspectral imaging Pixel Least squares approximation

来源：评论

学校读者我要写书评

暂无评论

Object segmentation based on multiple features for low bit rate video coding

Object segmentation based on multiple features for low bit r...

引用

International Conference on signal Processing Proceedings (ICSP)

作者： D. Tancharoen S. Jitapunkul S. Triamlumlerd P. Kittipanya-ngam S. Chompun Technology Center National Electronics and Computer Center Thailand Digital Signal Processing Research Laboratory Department of Electrical Engineering Chulalongkom University Bangkok Thailand

Video object segmentation for object based video coding according to MPEG-4 should be able to combine many features of the image sequence to achieve high quality object segmentation. The significant features include color, motion vector and change information. This paper presents an object segmentation algorithm where the image features are combined for use in the segmentation process. A fast recursive shortest spanning tree (FRSST) algorithm is used to segment the image into different intensity regions because of the good image segmentation performance and the fast algorithm. Motion vectors are estimated from consecutive frames and searched by thresholding hierarchical block matching (HBM) which require low computation and give acceptable results. After that many features are integrated in the segmentation decision process. Then, the postprocessing refines the final segmentation output. The results from some test sequences especially in a video conference sequence have a good performance and show the object of interest boundary clearly.

关键词： Object segmentation Bit rate Video coding Image segmentation Motion analysis signal processing algorithms MPEG 4 Standard Motion estimation Multimedia communication Layout

来源：评论

学校读者我要写书评

暂无评论

Quantum neural networks versus conventional feedforward neural networks: an experimental study

Quantum neural networks versus conventional feedforward neur...

引用

IEEE Workshop on Neural Networks for signal Processing

作者： R. Kretzschmar R. Bueler N.B. Karayiannis F. Eggimann Signal and Information Processing Laboratory Swiss Federal Institute of Technology Zurich Switzerland Department of Electrical and Computer Engineering University of Houston Houston TX USA

This study investigates the capacity of quantum neural networks (QNNs) to function as fuzzy classifiers. For this purpose, QNNs are compared with multilayer feedforward neural networks (FFNNs). The experiments are performed on two-dimensional speech data and investigate a variety of issues involved in the training of QNNs. This experimental study verifies that QNNs are capable of representing and quantifying the uncertainty inherent in the training data. It is also shown that simple post-processing of the QNN outputs makes QNNs an attractive alternative to conventional FFNNs for pattern classification applications.

关键词： Neural networks Feedforward neural networks Function approximation Fuzzy neural networks Multi-layer neural network Uncertainty Pattern classification Joining processes signal processing Information 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96页 << < 70 71 72 73 74 75 76 77 78 79 > >>

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：