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

2,046 篇 会议
406 篇 期刊文献
4 篇 学位论文
1 册 图书

馆藏范围

2,457 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

601 篇 工学
- 442 篇 电气工程
- 131 篇 计算机科学与技术...
- 108 篇 信息与通信工程
- 79 篇 电子科学与技术（可...
- 24 篇 软件工程
- 23 篇 生物医学工程（可授...
- 21 篇 控制科学与工程
- 19 篇 仪器科学与技术
- 7 篇 机械工程
- 7 篇 船舶与海洋工程
- 5 篇 材料科学与工程（可...
- 4 篇 交通运输工程
- 3 篇 力学（可授工学、理...
- 3 篇 测绘科学与技术
- 3 篇 石油与天然气工程
- 3 篇 网络空间安全
- 2 篇 光学工程
235 篇 理学
- 204 篇 物理学
- 16 篇 系统科学
- 14 篇 生物学
- 4 篇 数学
- 3 篇 化学
- 2 篇 地球物理学
- 2 篇 统计学（可授理学、...
52 篇 医学
- 43 篇 临床医学
- 10 篇 特种医学
- 5 篇 基础医学(可授医学...
14 篇 管理学
- 14 篇 管理科学与工程(可...
10 篇 文学
- 5 篇 外国语言文学
- 2 篇 新闻传播学
3 篇 农学
3 篇 军事学
2 篇 教育学
2 篇 艺术学
1 篇 法学

主题

2,457 篇 linear predictiv...
770 篇 speech coding
701 篇 speech analysis
545 篇 speech synthesis
409 篇 bit rate
402 篇 speech recogniti...
347 篇 speech processin...
323 篇 filters
278 篇 frequency
267 篇 testing
252 篇 vocoders
238 篇 vector quantizat...
236 篇 speech enhanceme...
224 篇 quantization
213 篇 predictive model...
201 篇 signal processin...
182 篇 speech
182 篇 cepstral analysi...
179 篇 signal synthesis
177 篇 signal analysis

机构

32 篇 school of electr...
23 篇 at and t bell la...
22 篇 bolt beranek and...
19 篇 bell laboratorie...
11 篇 at and t bell la...
10 篇 naval research l...
10 篇 department of el...
10 篇 ntt human interf...
10 篇 lpcs enserg gren...
9 篇 lpcs-enserg gren...
8 篇 centre for commu...
8 篇 signal technolog...
8 篇 department of el...
8 篇 cselt torino
8 篇 acoustics resear...
7 篇 electrical engin...
7 篇 acoustics resear...
7 篇 comsat laborator...
7 篇 central research...
7 篇 inrs-télécommuni...

作者

19 篇 s. cristoloveanu
18 篇 l. rabiner
14 篇 a.m. kondoz
14 篇 j. makhoul
13 篇 t. barnwell
13 篇 p. mermelstein
12 篇 t. moriya
12 篇 b. atal
12 篇 a. gersho
12 篇 p. hedelin
11 篇 g. ghibaudo
11 篇 gray rm
10 篇 a. rosenberg
10 篇 rabiner lr
10 篇 k. ozawa
9 篇 t.p. barnwell
9 篇 p. kabal
9 篇 a. mccree
9 篇 b.g. evans
8 篇 v. viswanathan

语言

2,283 篇 英文
167 篇 其他
4 篇 中文
3 篇 土耳其文

检索条件"主题词=Linear Predictive Coding"

共 2457 条记录，以下是571-580 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：

Noise reduction on speech codec parameters

Noise reduction on speech codec parameters

引用

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

作者： H. Taddei C. Beaugeant M. de Meuleneire Siemens AG ICM MP Munich Germany

The transmission of speech in mobile or packet networks requires the use of a speech codec. In order to improve the quality of speech in a noisy environment, a noise reduction algorithm is used. This noise reduction can either be done as pre-processing before speech encoding or in the network by decoding the bitstream, performing the speech enhancement in the time and/or frequency domain and re-encoding the speech. Both methods are computationally expensive. In this paper a new approach to reduce environmental background noise by modifying the codec parameters is discussed.

关键词： Noise reduction Speech codecs Speech enhancement Decoding Speech coding Mobile handsets Filters linear predictive coding Speech synthesis Working environment noise

来源：评论

学校读者我要写书评

暂无评论

Recognizing emotions for the audio-visual document indexing

Recognizing emotions for the audio-visual document indexing

引用

IEEE Symposium on Computers and Communications (ISCC)

作者： Xuan Hung Le G. Quenot E. Castelli Laboratoire CLIPS-IMAG Grenoble France

In this paper, we proposed using MFCC coefficients (mel-scaled cepstral coefficients) and a simple but efficient classifying method: vector quantification (VQ) to perform speaker-dependent emotion recognition. Many other features: energy, pitch, zero crossing, phonetic rate, LPC... and their derivatives are also tested and combined with MFCC coefficients in order to find the best combination. Other models, GMM and HMM (discrete and continuous hidden Markov model), are studied as well in the hope that the use of continuous distribution and the temporal evolution of this set of features will improve the quality of emotion recognition. The accuracy recognizing five different emotions exceeds 80% by using only MFCC coefficients with VQ model. This is a simple but efficient approach, the result is even much better than those obtained with the same database in human evaluations by listening and judging without returning permission nor comparisons between sentences (Inger Samso Engberg and Anya Varnich Hansen, 2001).

关键词： Emotion recognition Indexing Hidden Markov models Mel frequency cepstral coefficient Cepstral analysis linear predictive coding Testing Spatial databases Humans Permission

来源：评论

学校读者我要写书评

暂无评论

Extended linear prediction tools for lossless audio coding

Extended linear prediction tools for lossless audio coding

引用

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

作者： T. Moriya D.T. Yang T. Liebchen NTT Cyber Space Laboratories Tokyo Japan University of Southern California Los Angeles USA Technical University Berlin Berlin Germany

Two extension tools for enhancing the compression performance of prediction-based lossless audio coding are proposed. One is progressive-order prediction of the starting samples at the random access points, where the information of previous samples is not available. The first sample is coded as is, the second is predicted by first-order prediction, the third is predicted by second-order prediction, and so on. This can be efficiently carried out with PAR-COR (PARtial autoCORrelation) coefficients. The second tool is interchannel joint coding. Both predictive coefficients and prediction error signals are efficiently coded by interchannel differential or three-tap adaptive prediction. These new prediction tools lead to a steady reduction in bit rate when random access is activated and the interchannel correlation is strong.

关键词： Audio coding linear predictive coding Decoding Performance loss Bit rate Entropy Autocorrelation Multiple signal classification Propagation losses MPEG standards

来源：评论

学校读者我要写书评

暂无评论

An introduction to MPEG-4 audio lossless coding

An introduction to MPEG-4 audio lossless coding

引用

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

作者： T. Liebchen Technical University Berlin Germany

Lossless coding is to become the latest extension of the MPEG-4 audio standard. In response to a call for proposals, many companies have submitted lossless audio codecs for evaluation. The codec of the Technical University of Berlin was chosen as reference model for MPEG-4 audio lossless coding (ALS), attaining working draft status in July 2003. The encoder is based on linear prediction, which enables high compression even with moderate complexity, while the corresponding decoder is straightforward. The paper describes the basic elements of the codec, points out envisaged applications, and gives an outline of the standardization process.

关键词： MPEG 4 Standard Codecs Decoding Standardization Transform coding Proposals Audio coding Entropy coding linear predictive coding Cyclic redundancy check

来源：评论

学校读者我要写书评

暂无评论

Concerning the parameters choice of a speech recognition system of isolated Arabic words

Concerning the parameters choice of a speech recognition sys...

引用

International Conference on Information and Communication Technologies: From Theory to Applications, ICTTA

作者： C.H. Senani M. Bedda H. Bourouba M.A. Corba Laboratory OfAutomatic And Signals Annaba (LASA) Department of electronics Faculty Of Sciences Universite Badji Mokhtar Annaba Algeria

In this paper basic technologies intervening in the design of recognition system of Arab isolated words based on statistical modeling by the continuous HMMs (hidden Markov model) is presented. A comparative study based on the methods of analysis for the parameterization phase and the effect of the number of Gaussians and states for the training phase is studied. The best rate of recognition is obtained by the use of the differential parameters of the first order (MFCC).

关键词： Speech recognition Hidden Markov models Isolation technology Mel frequency cepstral coefficient Signal processing linear predictive coding Probability Iterative algorithms Space technology Speech processing

来源：评论

学校读者我要写书评

暂无评论

LPC-based object tracking in image processing

LPC-based object tracking in image processing

引用

International Symposium on Electronics in Marine (ELMAR)

作者： Yu Zhao Hanqing Lu National Laboratory of Pattern Recognition Institute of Automation Chinese Academy and Sciences China

The tracking method based on local position color information (LPC) is a subregion model matching approach. A new color representation method is proposed firstly to eliminate illumination efficiently. And then the target region is divided into similar color subregion, in each subregion the histogram is calculated in certain color range, furthermore, the target can be represented by the position-weighted histogram. At last, the minimum cross entropy method is used as the similarity function between the target model and the target candidates. The target tracking algorithm has better effect in the experimental result.

关键词： Image processing Colored noise Target tracking linear predictive coding Histograms Lighting Color Particle filters Density functional theory Laboratories

来源：评论

学校读者我要写书评

暂无评论

Scintillating fiber dosimeter

Scintillating fiber dosimeter

引用

IEEE Symposium on Nuclear Science (NSS/MIC)

作者： A.-M. Frelin J.-M. Fontbonne G. Ban A. Batalla J. Colin A. Isambert M. Labalme T. Leroux A. Vela Laboratoire de Physique Corpusculaire de Caen Caen France Centre de Lutte Centre le Cancer Caen France ELDIM society Herouville France

Radiotherapy treatments become more and more accurate, using techniques like IMRT. Their irradiation fields and dose depositions are small and complex, and only a few dosimeters are available for real time and in vivo control for photons as well as for electrons beams. In this context, a new scintillating fiber dosimeter (SFD) has been developed by the "Laboratoire de Physique Corpusculaire de Caen", LPC Caen (France) in collaboration with one of the French regional center for cancer treatment, "Centre regional de lutte contre cancer ***" CRLCC F. Baclesse in Caen, and the ELDIM Company in Herouville (France). This plastic dosimeter is water equivalent, and it is suitable for photons as well as for electrons beams without correction. It is a real time dosimeter, with an excellent signal to noise ratio, and a spatial resolution of about a few millimeters. Recently, a new light collection device has been developed to improve the spatial resolution to 1 mm without loss in the signal to noise ratio. The accuracy of this improved prototype has been tested by comparison with standard ionization chambers and the difference between the two devices never exceeded one percent for photon and for electron irradiation beams. A first set of commercial SFD is under completion at ELDIM and it will be soon clinically tested in several French centers for cancer treatment.

关键词： Electron beams Cancer Signal to noise ratio Spatial resolution Testing In vivo Optical control linear predictive coding Collaboration Plastics

来源：评论

学校读者我要写书评

暂无评论

Estimation of LPC parameters of speech signals in noisy environment

Estimation of LPC parameters of speech signals in noisy envi...

引用

IEEE Region 10 International Conference TENCON

作者： A.K. Swain W. Abdulla Department of electrical and computer Engineering University of Auckland Auckland New Zealand

The performance of LPC based algorithm deteriorates significantly in the presence of background noise. The present study proposes a new approach based on orthogonal least squares (OLS) algorithm with structure selection to obtain unbiased LPC parameters from noisy speech samples. Instead of fitting a fixed order model to all segments of speech, the algorithm selects the best possible model order for a given speech segment using an error reduction ratio (ERR) test. A noise model is appended to the conventional LPC model to make the LPC parameters unbiased. The proposed algorithm gives superior performance compared to the commonly used LPC based algorithm under high levels of noise.

关键词： Parameter estimation linear predictive coding Speech Working environment noise

来源：评论

学校读者我要写书评

暂无评论

Time-frequency analysis of visual evoked potentials by means of matching pursuit with chirplet atoms

Time-frequency analysis of visual evoked potentials by means...

引用

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： J. Cui W. Wong S. Mann Institute of Biomaterials and Biomedical Engineering University of Toronto ONT Canada Institute of Biomaterials and Biomedical Engineering Department of Electrical and Computer Engineering University of Toronto ONT Canada Department of Electrical and Computer Engineering University of Toronto ONT Canada

Detection of visual evoked potentials (VEP) elicited by repetitive stimuli is valuable in both laboratorial research and clinical practice. Therefore, knowing the characteristics of VEPs is of fundamental importance for adequate design of a signal detector. Usually, the signal is modeled as a steady-state VEP (ssVEP) consisting of the fundamental frequency and the higher harmonics, while ignoring the information contained in its transients (tVEP). We propose here to characterize both tVEP and ssVEP by chirplet time-frequency representation of VEP signal using a matching pursuit (MP) algorithm. Compared to the time-frequency analysis with short-time-Fourier-transform (STFT) and linear-prediction-coding (LPC) method, MP with chirplet shows not only clear characteristics of ssVEP, but a clear spindle-like time-frequency component of tVEP as well, which is not obvious in the other two methods.

关键词： Time frequency analysis Matching pursuit algorithms Chirp Signal detection Laboratories Signal design Detectors Steady-state Pursuit algorithms linear predictive coding

来源：评论

学校读者我要写书评

暂无评论

High sampling rate audio signal modeling

High sampling rate audio signal modeling

引用

Asilomar Conference on Signals, Systems & Computers

作者： X.-R. Su D.-Y. Huang A. Nallanathan Department of Electrical Engineering National University of Singapore Singapore Multimedia Signal Processing Laboratory Media Division Institute for Infocomm Research Singapore

In this paper, we study the issue of the high sampling rate audio modeling for lossless audio coding. We propose a cascade LMS structure to successfully model all high sampling rate audio signals. This cascade structure predictor, not only performs better than its counterpart FTR linear prediction coding (LPC) technique in modeling general audio signals, but also displays a faster convergence and smaller mean square error (MSE) than conventional LMS predictor and low-order stages cascade LMS predictor, while the complexity of the proposed predictor remains simple. The simulation results show that the proposed structure gets better prediction gain compared with Monkey's audio codec and MPEG-4 ALS codec provided by Technology University of Berlin (TUB) for real high sampling rate audio test set. Other adaption algorithms can be used for the single stages.

关键词： Sampling methods Least squares approximation predictive models Codecs Audio coding linear predictive coding Auditory displays Mean square error methods MPEG 4 Standard Testing

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246页 << < 54 55 56 57 58 59 60 61 62 63 > >>

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：