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

9,227 篇 会议
1,102 篇 期刊文献
3 篇 学位论文

馆藏范围

10,332 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

2,411 篇 工学
- 1,419 篇 电气工程
- 934 篇 计算机科学与技术...
- 594 篇 信息与通信工程
- 232 篇 软件工程
- 205 篇 电子科学与技术（可...
- 187 篇 仪器科学与技术
- 126 篇 机械工程
- 101 篇 控制科学与工程
- 36 篇 测绘科学与技术
- 27 篇 网络空间安全
- 25 篇 生物医学工程（可授...
- 24 篇 光学工程
- 7 篇 材料科学与工程（可...
- 7 篇 航空宇航科学与技...
- 6 篇 土木工程
- 5 篇 环境科学与工程（可...
- 5 篇 生物工程
309 篇 理学
- 130 篇 系统科学
- 107 篇 物理学
- 28 篇 数学
- 27 篇 地球物理学
- 16 篇 生物学
- 5 篇 地理学
264 篇 医学
- 253 篇 临床医学
- 18 篇 特种医学
- 10 篇 基础医学(可授医学...
103 篇 管理学
- 96 篇 管理科学与工程(可...
40 篇 文学
- 38 篇 新闻传播学
16 篇 军事学
- 16 篇 军队指挥学
10 篇 农学
- 5 篇 作物学
6 篇 法学
5 篇 艺术学
1 篇 经济学
1 篇 教育学

主题

10,332 篇 transform coding
5,218 篇 image coding
2,156 篇 discrete cosine ...
1,795 篇 video compressio...
1,716 篇 decoding
1,320 篇 streaming media
1,194 篇 bit rate
1,118 篇 encoding
878 篇 quantization
841 篇 video coding
708 篇 watermarking
647 篇 discrete wavelet...
621 篇 robustness
615 篇 image reconstruc...
609 篇 psnr
538 篇 pixel
470 篇 bandwidth
460 篇 feature extracti...
444 篇 image quality
406 篇 motion estimatio...

机构

29 篇 school of electr...
25 篇 department of el...
24 篇 philips research...
24 篇 hewlett packard ...
23 篇 institute for in...
21 篇 department of co...
21 篇 school of comput...
19 篇 microsoft resear...
19 篇 university of ne...
18 篇 department of el...
16 篇 university of sc...
15 篇 department of el...
15 篇 ibm thomas j. wa...
15 篇 department of el...
15 篇 department of el...
15 篇 david samoff res...
15 篇 institute of com...
14 篇 department of el...
14 篇 at and t bell la...
13 篇 department of el...

作者

36 篇 hitoshi kiya
30 篇 andreas uhl
27 篇 thomas richter
26 篇 marek domański
25 篇 fernando pereira
24 篇 liang-gee chen
22 篇 marco mattavelli
22 篇 o.c. au
21 篇 feng wu
20 篇 jiwu huang
18 篇 david taubman
17 篇 xiaolin wu
16 篇 tsung-han tsai
15 篇 krzysztof wegner
14 篇 wiegand thomas
14 篇 jakub stankowski
14 篇 m. vetterli
14 篇 y. nakajima
14 篇 thomas wiegand
14 篇 tomasz grajek

语言

10,207 篇 英文
74 篇 其他
47 篇 中文
2 篇 克罗地亚文
2 篇 土耳其文

检索条件"主题词=transform coding"

共 10332 条记录，以下是4841-4850 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：

Error concealment, early re-synchronization, and iterative decoding for MPEG-2

Error concealment, early re-synchronization, and iterative d...

引用

IEEE International Conference on Communications (ICC)

作者： S. Aign German Aerospace Research Establishment DLR Institute for Communications Technology Oberpfaffenhofen Germany

For the digital transmission of TV the video-signal will be highly compressed with the MPEG-2 source coding algorithm. The MPEG-2 source coded stream is very sensitive to channel disturbances due to variable length coding. A single bit error may result in error propagation, therefore, it will cause a high degradation of picture quality. Hence, error concealment techniques or iterative decoding techniques might be required at the receiver. The aim of this article is to study different techniques for handling channel errors at the receiver side. The first way is to apply error concealment techniques after source decoding. For P- and B-pictures, the inherent motion vectors can be used for temporal error concealment (TEC) which yields very good results. However, in I-pictures no motion vectors exist for TEC. Furthermore, the spatial error concealment (SEC) techniques suffer from the non existence of neighbored macroblocks (MBs) because of the re-synchronization at the slice level. Therefore, another technique, which is called early re-synchronization, in combination with an enhanced error detection technique is investigated in this article. With this technique most of the correct received data can be exploited for error concealment and the quality of service mainly in I-pictures will be improved. A second way for handling channel errors is to apply iterative channel decoding. With this, the error correction capability of the channel decoding part can be improved and less residual errors will occur in the bitstream.

关键词： Iterative decoding Error correction transform coding Channel coding Protection TV Source coding Iterative algorithms Streaming media Satellite broadcasting

来源：评论

学校读者我要写书评

暂无评论

Invention and Development of Overdrive Technology to Solve the Image-Lag Issue for TFT LCDs and LCTVs

Invention and Development of Overdrive Technology to Solve t...

引用

IEEE History of Telecommunications Conference, HISTELCON

作者： Haruhiko Okumura Corporate R & D Center Toshiba Corp. Kawasaki-shi Japan

ISBN: (纸本)9781509065530

Our proposed Level Adaptive Overdrive Technology, that has improved gray-level response of LCDs, has been reviewed. We also introduced a recently developed advanced level-adaptive overdrive (ALAO) method applicable to full-digital HD-LCTVs, which not only reduced the gray level response time to less than one fourth, but also improved S/N for still pictures by 10 dB and reduced the circuit cost for LAO method to almost half that of a conventional LAO circuit. We applied the ALAO method to a full-HDLC projector with 1.84 M pixels and obtained high full-HD motion picture qualities. In addition, we introduced the most recently developed software-processed level-adaptive overdrive (SLAO) method without any additional hardware and cost-up.

关键词： Motion pictures Software TV transform coding Time factors Hardware Signal to noise ratio

来源：评论

学校读者我要写书评

暂无评论

Self-organizing segmentor and feature extractor

Self-organizing segmentor and feature extractor

引用

IEEE International Conference on Image Processing

作者： R.D. Dony S. Haykin Communications Research Laboratory McMaster University Hamilton ONT Canada

Proposes a novel approach to segmentation using a combination of Hebbian learning and competitive learning in a self-organizing manner. The network is modular, with each module corresponding to a different class of the input data. A module consists of a weight vector that is calculated during an initial training period. The appropriate class for a given input vector is determined by a maximum entropy classifier. The resulting network consistently extracts perceptually relevant features from image data. As well, the class representations are analogous to the arrangement of directionally sensitive columns in the visual cortex.< >

关键词： Feature extraction Entropy Equations Image coding Tellurium Vectors transform coding Image segmentation Distortion Upper bound

来源：评论

学校读者我要写书评

暂无评论

JPEG Image Ciphering Based on Chaotic Encryption

JPEG Image Ciphering Based on Chaotic Encryption

引用

IEEE International Conference on Image Processing

作者： Meha Hachani Azza Ouled Zaid National Engineering School of Tunis SysCom Laboratory University of Tunis El Manar B.P.37 le Belvédère 1002 Tunis Tunisia

ISBN: (数字)9798350349399

ISBN: (纸本)9798350349405

This paper proposes a chaos-based encryption method that allows conditional access to privacy-sensitive regions in Joint Photographic Experts Group (JPEG) images. Our goal is to encipher the confidential content in a way that guarantees high resistance to common attacks without severely compromising the encoding speed and bitrate cost. The encryption mechanism comprises two modules: chaotic confusion and diffusion; the first module is governed by means of nonlinear shuffling applied on the quantized AC (Alternating Current) coefficients belonging the region of interest (ROI), while the second module is ruled by means of XOR operation that encrypts the shuffled components using a cumulative one-dimensional chaotic map. The whole cryptosystem is controlled by the chaotic sequences generated by chaotic maps. Experimental results demonstrate that the proposed cryptocompression scheme is proven to be effective in balancing the trade-off between robustness and hiding ability while guaranteeing reversible recovery of the protected data.

关键词： Resistance Visualization Privacy Chaotic communication Bit rate transform coding Metadata

来源：评论

学校读者我要写书评

暂无评论

Fast intra mode decision in HEVC using early distortion estimation

Fast intra mode decision in HEVC using early distortion esti...

引用

IEEE China Summit & International Conference on Signal and Information Processing (ChinaSIP)

作者： Andreas Heindel André Kaup Multimedia Communications and Signal Processing Friedrich-Alexander University Erlangen-Nürnberg (FAU) Erlangen Germany

ISBN: (纸本)9781479919499

The latest video coding standard HEVC has the potential to rapidly conquer many areas of video compression due to the significant boost in coding efficiency compared to its predecessor. Unfortunately there is the drawback that this gain in efficiency comes at the expense of complexity. Encoders have to select the best possible coding mode from a huge set of available modes offered by the standard. In this paper the intra mode selection process is accelerated by early estimation of the distortion introduced by a certain mode, which may be applied in addition to other fast mode decision schemes. Due to the online adaptation of our proposed estimator, the approach is tolerant to different coding settings and input sequences. Using early distortion estimation results in a potential encoder speed-up of 24.83% on average, accompanied by an average bitrate increase of 2.92%.

关键词： Distortion Encoding Estimation transforms transform coding Video coding ISO

来源：评论

学校读者我要写书评

暂无评论

Compressed image quality and Zipf law

Compressed image quality and Zipf law

引用

International Conference on Signal Processing Proceedings (ICSP)

作者： N. Vincent P. Makris J. Brodier Laboratoire dE28099Infonnatique Université de Tours Tours France

We point out the interest in using Zipf law in the wide field of image analysis. We show how it is possible to adapt it to image analysis. There are many applications; here we are concerned with image compression and focus on a new definition of quality measurement of an image obtained after a decompression process. First we propose a coding mode of an image using some neighborhood of each pixel and the Zipf law. Then some significant comparisons can be achieved between different images. A statistical study of the patterns present in the image allows a characterization of the information contained in the image so that a measurement of information modification is made possible. We define two quantitative parameters; one indicates the structure of the image whereas the second indicates high content information. The examples of the images of a landscape and of a female face are used to illustrate the influence of the compression rate.

关键词： Image coding Image quality Image analysis PSNR Particle measurements Pixel transform coding Pattern analysis Pattern recognition Image recognition

来源：评论

学校读者我要写书评

暂无评论

Demosaicking and JPEG2000 compression of microscopy images

Demosaicking and JPEG2000 compression of microscopy images

引用

IEEE International Conference on Image Processing

作者： B. Parrein M. Tarin P. Horain Institut National des Télécommunications GET/INT Evry cedex France

This paper presents a comparison of original couplings between color filter array demosaicking methods and wavelet compression (JPEG2000). We focus on an application handling huge microscopy images (64 K/spl times/64 K pixels) for telediagnosis. Whereas coding is usually achieved after interpolation, we also consider demosaicking after decompression in order to optimize image quality for a given size of data. We also study the JPEG2000 stream structure for interactive visualization.

关键词： transform coding Image coding Optical microscopy Interpolation Sensor arrays Filters Pixel Data visualization Optical sensors Image sampling

来源：评论

学校读者我要写书评

暂无评论

VLSI design for low-power data-adaptive motion estimation

VLSI design for low-power data-adaptive motion estimation

引用

European Signal Processing Conference (EUSIPCO)

作者： Luca Fanucci Sergio Saponara CSMDR National Research Council Pisa Italy Department of Information Engineering University of Pisa Pisa Italy

A data-adaptive motion estimation algorithm and its low-power VLSI implementation are presented in this paper. Basically, the proposed technique exploits the input data variations to dynamically reconfigure the search window size of an exhaustive block-matching search. As proved by computer simulations, the same high performance of the conventional full-search approach is achieved for a remarkable reduction of the circuit power consumption.

关键词： Clocks Abstracts Senior citizens Engines transform coding

来源：评论

学校读者我要写书评

暂无评论

The Image Forensics Analysis of JPEG Image Manipulation (Lightning Talk)

The Image Forensics Analysis of JPEG Image Manipulation (Lig...

引用

International Conference on Software Security and Assurance (ICSSA)

作者： SeungJu Cha Uijeong Kang EunJung Choi dept. of Information Security Seoul Women's University Seoul South Korea Seoul Women's University Seoul South Korea

ISBN: (数字)9781538692103

ISBN: (纸本)9781538692110

We use pictures as evidence. It is increasingly important to detect the manipulated areas of digital images. But we also face fabricated photographs to distort it. As the days go by, the fabricated image becomes more sophisticated and invisible. Many people have tried to improve image forensics technology to distinguish this fabricated images. In this paper, We investigate how to detect manipulated areas of a digital image like JPEG image format that used lossy compression. We use the features of the lossy compression to detect the manipulated image by the error level analysis(ELA) that is the analysis digital data such as JPEG format. And we're going to show that the Error Level Analysis(ELA) can work as image forensics. Through this analysis, we will be able to better judge manipulated images.

关键词： Image coding transform coding Image color analysis Discrete cosine transforms Digital images Quantization (signal) Image forensics

来源：评论

学校读者我要写书评

暂无评论

Multiple object tracking on static surveillance video using field-based prediction information in MPEG-2 video

Multiple object tracking on static surveillance video using ...

引用

IEEE International Conference on Image Processing

作者： I Gusti Bagus Baskara Nugraha Suwen Weng Hiroyoshi Morita Graduate School of Information Systems University of Electro-Communications Chofu Tokyo Japan

We present new algorithms to detect and track multiple moving objects in a static surveillance video that uses MPEG-2 compression. The algorithm detects moving objects based on the location of field-based motion estimated macroblocks in inter-prediction frames, and tracks their movements along video scene by using an extension of Kalman filter that uses the objects' velocity information. Experiments show that the algorithm outputs highly accurate results in various scenarios.

关键词： Tracking Kalman filters transform coding Prediction algorithms Object detection Image coding Streaming media

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500页 << < 481 482 483 484 485 486 487 488 489 490 > >>

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：