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

185 篇 会议
3 篇 期刊文献
1 册 图书

馆藏范围

189 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

132 篇 工学
- 86 篇 软件工程
- 77 篇 信息与通信工程
- 44 篇 电气工程
- 44 篇 计算机科学与技术...
- 6 篇 光学工程
- 6 篇 电子科学与技术（可...
- 3 篇 控制科学与工程
- 2 篇 机械工程
- 2 篇 仪器科学与技术
- 2 篇 航空宇航科学与技...
- 2 篇 生物医学工程（可授...
- 1 篇 动力工程及工程热...
- 1 篇 石油与天然气工程
- 1 篇 环境科学与工程（可...
102 篇 理学
- 98 篇 物理学
- 6 篇 数学
11 篇 医学
- 11 篇 临床医学
- 1 篇 基础医学(可授医学...
- 1 篇 药学(可授医学、理...
- 1 篇 特种医学
5 篇 管理学
- 3 篇 管理科学与工程(可...
- 2 篇 图书情报与档案管...
- 1 篇 工商管理
1 篇 经济学
- 1 篇 应用经济学
1 篇 法学
- 1 篇 社会学
1 篇 艺术学
- 1 篇 美术学

主题

65 篇 video compressio...
48 篇 image compressio...
41 篇 video
34 篇 video coding
28 篇 motion estimatio...
21 篇 quantization
20 篇 computer program...
15 篇 transform coding
13 篇 visualization
13 篇 image quality
13 篇 motion models
12 篇 image segmentati...
12 篇 image coding
11 篇 streaming media
10 篇 algorithm develo...
10 篇 standards develo...
10 篇 image processing
9 篇 signal to noise ...
9 篇 distortion
9 篇 computing system...

机构

3 篇 columbia univ de...
3 篇 hewlett packard ...
2 篇 univ so calif de...
2 篇 graduate school ...
2 篇 univ ottawa dept...
2 篇 computer systems...
2 篇 univ texas dept ...
2 篇 kaleida labs inc...
2 篇 monash univ dept...
1 篇 fraunhofer insti...
1 篇 univ tokyo dept ...
1 篇 de la salle univ...
1 篇 univ wisconsin d...
1 篇 de la salle univ...
1 篇 3294 desertwood ...
1 篇 us air force res...
1 篇 department of in...
1 篇 department of el...
1 篇 fub rome
1 篇 electronics engi...

作者

5 篇 panchanathan s
2 篇 anastassiou d
2 篇 jain a
2 篇 wu hr
2 篇 boroczky l
2 篇 takeshi ikenaga
2 篇 bhaskaran v
2 篇 strintzis mg
2 篇 ding w
2 篇 kasperovich l
2 篇 yuen m
2 篇 kuo ccj
2 篇 wang ks
2 篇 bovik ac
2 篇 chaddha navin
2 篇 eckart s
2 篇 k. brandenburg
2 篇 gupta anoop
2 篇 csillag p
1 篇 joormann tobias

语言

185 篇 英文
2 篇 其他
1 篇 俄文
1 篇 中文

检索条件"任意字段=Conference on Digital Video Compression - Algorithms and Technologies 1995"

共 189 条记录，以下是181-190 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：

MOTION ESTIMATION OPTIMIZATION IN A MPEG 1 LIKE video CODING SCHEME FOR LOW BITRATE APPLICATIONS

MOTION ESTIMATION OPTIMIZATION IN A MPEG 1 LIKE VIDEO CODING...

引用

conference on digital video compression on Personal Computers: algorithms and technologies

作者： ROSER, M VILLEGAS, P TELEFON I&D E-28043 MADRIDSPAIN

ISBN: (纸本)0819414824

In this paper we present a work based on a coding algorithm for visual information that follows the International Standard ISO-IEC IS 11172, `Coding of Moving Pictures and Associated Audio for digital Storage Media up to about 1.5 Mbit/s', widely known as MPEG1. The main intention in the definition of the MPEG 1 standard was to provide a large degree of flexibility to be used in many different applications. The interest of this paper is to adapt the MPEG 1 scheme for low bitrate operation and optimize it for special situations, as for example, a talking head with low movement, which is a usual situation in videotelephony application. An adapted and compatible MPEG 1 scheme, previously developed, able to operate at px8 Kbit/s will be used in this work. Looking for a low complexity scheme and taking into account that the most expensive (from the point of view of consumed computer time) step in the scheme is the motion estimation process (almost 80% of the total computer time is spent on the ME), an improvement of the motion estimation module based on the use of a new search pattern is presented in this paper.

关键词： Diamond Motion estimation Computing systems Diamond patterning Visualization Information visualization Signal to noise ratio video coding Head Motion models

来源：评论

学校读者我要写书评

暂无评论

ASIC IMPLEMENTATION OF RECURSIVE SCALED DISCRETE COSINE TRANSFORM ALGORITHM

ASIC IMPLEMENTATION OF RECURSIVE SCALED DISCRETE COSINE TRAN...

引用

conference on digital video compression on Personal Computers: algorithms and technologies

作者： ON, BN NARASIMHAN, S HUANG, VKL NATL UNIV SINGAPORE INST MICROELECTRSINGAPORE 0511SINGAPORE

ISBN: (纸本)0819414824

A program to implement the Recursive Scaled Discrete Cosine Transform (DCT) algorithm as proposed by H. S. Hou has been undertaken at the Institute of Microelectronics. Implementation of the design was done using top-down design methodology with VHDL (VHSIC Hardware Description Language) for chip modeling. When the VHDL simulation has been satisfactorily completed, the design is synthesized into gates using a synthesis tool. The architecture of the design consists of two processing units together with a memory module for data storage and transpose. Each processing unit is composed of four pipelined stages which allow the internal clock to run at one-eighth (1/8) the speed of the pixel clock. Each stage operates on eight pixels in parallel. As the data flows through each stage, there are various adders and multipliers to transform them into the desired coefficients. The Scaled IDCT was implemented in a similar fashion with the adders and multipliers rearranged to perform the inverse DCT algorithm. The chip has been verified using Field Programmable Gate Array devices. The design is operational. The combination of fewer multiplications required and pipelined architecture give Hou's Recursive Scaled DCT good potential of achieving high performance at a low cost in using Very Large Scale Integration implementation.

关键词： Clocks Field programmable gate arrays Data storage video compression Microelectronics Very large scale integration video Computer architecture Data processing Image compression

来源：评论

学校读者我要写书评

暂无评论

USING 4X4 DCTS AND MOVING 4X4 BLOCKS FOR SOFTWARE ONLY video DEcompression

USING 4X4 DCTS AND MOVING 4X4 BLOCKS FOR SOFTWARE ONLY VIDEO...

引用

conference on digital video compression on Personal Computers: algorithms and technologies

作者： WILSON, R ACORN COMP LTD CAMBRIDGE CB4 4AEENGLAND

ISBN: (纸本)0819414824

4 X 4 inverse DCTs are computationally twice as efficient as 8 X 8 inverse DCTs. In addition they have less register pressure, making the implementation more efficient for most processors. This extra computational efficiency places more pressure on improving the other components of the video decompression system. This paper describes a coding scheme for the quantized components which has an efficient decompression algorithm. The implementation of the inverse DCT is examined in detail, including removing all multiplication operations and replacing them with single CPU cycle shift-and-add operations. The data flow through a complete 4 X 4 DCT is described such that the results of intermediate 1 X 4 DCTs are written to and read from memory as efficiently as possible. A set of quantizers for the 4 X 4 DCT are presented which allow the decompression process to use shift-and-add instead of multiply. Efficient DCTs by themselves are not enough: the paper discusses the effects of changing the search area (in particular to being non-square) and shows a coding scheme suitable for fast decompression. It also discusses how to organize the block matching and that good results can be obtained if some pixels are allowed to match worse than the nominal value.

关键词： Quantization video Computer programming Data conversion Data storage Image stacking Computing systems Compact discs video compression Eye

来源：评论

学校读者我要写书评

暂无评论

METHOD FOR EXTRACTING CAMERA OPERATIONS TO DESCRIBE SUB-SCENES IN video SEQUENCES

METHOD FOR EXTRACTING CAMERA OPERATIONS TO DESCRIBE SUB-SCEN...

引用

conference on digital video compression on Personal Computers: algorithms and technologies

作者： MAEDA, J IBM JAPAN LTD TOKYO RES LABKANAGAWA 242JAPAN

ISBN: (纸本)0819414824

Numerous attempts have been made to detect scene changes in video sequences and to treat scenes as units, to allow handling of very large amounts of video data. But less attention has been given to the structure of scenes themselves. In this study, we define a "sub-scene" as a structural component of a scene in terms of camera operations. In other words, sub-scenes are subsets of scenes, and consist of successive frames in which the movements of the contents are almost identical. The advantage of sub-dividing scenes into sub-scenes is that it gives added power to description of objects and motion information. Up to now, the mainstream of research on estimating camera operations has been frame-by-frame analysis: that is, most studies have evaluated the difference between the contents of two frames at a time, and estimated camera motions by analyzing such differences over a period. Though these techniques can estimate camera operations accurately, they are generally time-consuming and may be greatly affected by noise, such as unintentional movements of the cameraman's hands, in a few frames of a sequence. In order to describe sub-scenes, the estimation of camera operations need not be very accurate, but it must be resistant to noise. The technique proposed in this paper for extracting camera operations, which processes more than two frames at a time by using a two-dimensional spatio-temporal image, meets the above requirement. It is also faster than conventional frame-by-frame analysis. The results of experiments indicate that the technique is both feasible and useful. © 1994 SPIE. All rights reserved.

关键词： Cameras

来源：评论

学校读者我要写书评

暂无评论

Text segmentation in mixed-mode images 28

Text segmentation in mixed-mode images

引用

28th Asilomar conference on Signals, Systems and Computers, ACSSC 1994

作者： Chaddha, Navin Sharma, Rosen Agrawal, Avneesh Gupta, Anoop Computer Systems Laboratory Stanford University StanfordCA94305 United States

ISBN: (纸本)0818664053

Block based algorithms have found widespread use in image and video compression. However, popular algorithms such as JPEG, which are very effective in compressing continuous tone images, do not perform well with mixed-mode images which have a substantial text component. With a growing number of applications where such images occur, e.g., color facsimile, digital libraries and educational videos, there are advantages in being able to classify each block as being text or continuous tone. With such a classification, different compression parameters or even algorithms may be employed for the two kinds of data to obtain high compression with minimal loss in visual quality. In this paper we analyze and compare four methods for block classification in mixed mode images, namely variance, absolute-deviation, edge, and DCT based methods. Our evaluation of each scheme is based on the accuracy of segmentation, robustness across different types of images and sensitivity to the threshold used for segmentation. Our results show that DCT based segmentation offers the best accuracy and robustness. Another advantage of DCT is that it is compatible with standards like JPEG, MPEG and H.261. © 1995 IEEE.

关键词： Image compression

来源：评论

学校读者我要写书评

暂无评论

High-Definition video

High-Definition Video

引用

High-Definition video

ISBN: (纸本)0819412228

This conference contains 36 papers. In addition to the invited paper on recent advances in digital transmission of HDTV, the contributions are grouped in the following sessions: HDTV transmission and coding;processing and compression algorithms;services and applications;superhigh definition systems;processing architectures and display technologies. Some of the topics considered are as follows: digital HDTV transmission system via satellite;high definition video codec for broadband applications;review of video compression which depends on visual perception limits;structural approach to texture image design;B-ISDN-based multimedia communication system supporting group work;RAM-based image sequence storage and processing system for real time I/O of superhigh-definition TV signals;high resolution aerial serial imaging and surveillance;novel memory architecture for video signal processor;fiber optic liquid crystal displays;practical method of improving definition for underwater image capture.

关键词： High definition television

来源：评论

学校读者我要写书评

暂无评论

QuickTime: An extensible standard for digital multimedia

QuickTime: An extensible standard for digital multimedia

引用

37th Annual IEEE International Computer conference - COMPCON SPRING '92

作者： Hoffert, Eric Krueger, Mark Mighdoll, Lee Mills, Micheal Cohen, Johnathan Camplejohn, Doug Leak, Bruce Batson, Jim Van Brink, David Blackketter, Dean Arent, Michael Williams, Rich Thorman, Chris Yawitz, Mitch Doyle, Ken Callahan, Sean

ISBN: (纸本)0818626550

The authors describe QuickTime, an extensible standard for digital multimedia which establishes a foundation for the representation of time-based objects and file formats, still image and video compression techniques, human interface conventions, and application programming interfaces. All of these representations can stay the same as one moves towards an era of full-screen, full-motion digital video/high-resolution digital systems and as the underlying media technologies and compression schemes improve rapidly over time. QuickTime includes direct support in the operating system for audio/video synchronization and for still and moving image compression algorithms. Software-based video decompression is used as a means to permit dynamic media functionality in all color Macintosh computers. As a result, QuickTime brings dynamic media to a broad range of applications, including not only media authoring tools such as video editors and animation systems, but to mainstream tools such as word processors, databases, spreadsheets, and electronic mail.

关键词： Computer software

来源：评论

学校读者我要写书评

暂无评论

Impact of recent compression/decompression technologies in video distribution systems 11

Impact of recent compression/decompression technologies in v...

引用

11th IEEE/AIAA digital Avionics Systems conference, DASC 1992

作者： Helgeson, M.A. Tanji, T.M. Kilgore, G.A. Syst. and Res. Center Honeywell Inc. BloomingtonMN United States

ISBN: (纸本)0780308204

The authors present the fundamental principles, techniques, and algorithms for compression/decompression currently available in the marketplace JPEG/CCITT/MPEG and a potentially superior method for cockpit video distribution applications under investigation. It is noted that JPEG Joint Photographic Experts Group, CCITT International Consultative Committee for Telephone and Telegraph, or MPEG Motion Picture Experts Group alone will not solve the myriad of issues that must be addressed before digital imagery will be fully integrated within next generation cockpit high definition video distribution systems. After careful consideration of each standard's capabilities and original objectives, it is found that each group provides extremely relevant techniques and foundation to their accomplishments, but that none is necessarily ideal for avionic applications. JPEG imposes compression ratio limitations to maintain quality levels. CCITT limits image resolution, allows a 150-ms latency, and is geared toward limited motion applications. In MPEG's attempt to overcome the CCITT deficiencies, additional hardware complexity is required. The MPEG standard supports extended motion search and is optimized for motion-intensive video applications at the expense of the high compression ratios achievable by the CCITT approach. The most complex implementation issue that exists is being able to achieve the high pixel rates required at moderate complexity, weight, size, and power. While most silicon vendors have been struggling with the lower resolution H.261 and MPEG real-time implementation, the wavelet transform may allow a very acceptable low complexity solution. © 1992 IEEE.

关键词： Motion Picture Experts Group standards

来源：评论

学校读者我要写书评

暂无评论

Impact of recent compression/decompression technologies in video distribution systems

Impact of recent compression/decompression technologies in v...

引用

conference on digital Avionics Systems (DASC)

作者： M.A. Helgeson T.M. Tanji G.A. Kilgore Systems and Research Center Honeywell Inc. Bloomington MN USA

The authors present the fundamental principles, techniques, and algorithms for compression/decompression currently available in the marketplace (JPEG/CCITT/MPEG) and a potentially superior method for cockpit video distribution applications under investigation. It is noted that JPEG (Joint Photographic Experts Group), CCITT (International Consultative Committee for Telephone and Telegraph), or MPEG (Motion Picture Experts Group) alone will not solve the myriad of issues that must be addressed before digital imagery will be fully integrated within next generation cockpit high definition video distribution systems. After careful consideration of each standard's capabilities and original objectives, it is found that each group provides extremely relevant techniques and foundation to their accomplishments, but that none is necessarily ideal for avionic applications. JPEG imposes compression ratio limitations to maintain quality levels. CCITT limits image resolution, allows a 150-ms latency, and is geared toward limited motion applications. In MPEG's attempt to overcome the CCITT deficiencies, additional hardware complexity is required. The MPEG standard supports extended motion search and is optimized for motion-intensive video applications at the expense of the high compression ratios achievable by the CCITT approach. The most complex implementation issue that exists is being able to achieve the high pixel rates required at moderate complexity, weight, size, and power. While most silicon vendors have been struggling with the lower resolution H.261 and MPEG real-time implementation, the wavelet transform may allow a very acceptable low complexity solution.< >

关键词： video compression Transform coding Image coding Telephony Telegraphy Motion pictures digital images High definition video Aerospace electronics Image resolution

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19页 << < 10 11 12 13 14 15 16 17 18 19 > >>

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：