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

9,230 篇 会议
1,025 篇 期刊文献
3 篇 学位论文

馆藏范围

10,258 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

2,334 篇 工学
- 1,344 篇 电气工程
- 919 篇 计算机科学与技术...
- 571 篇 信息与通信工程
- 230 篇 软件工程
- 199 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
- 24 篇 光学工程
- 24 篇 生物医学工程（可授...
- 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
306 篇 理学
- 130 篇 系统科学
- 104 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
261 篇 医学
- 252 篇 临床医学
- 18 篇 特种医学
- 8 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

10,258 篇 transform coding
5,167 篇 image coding
2,135 篇 discrete cosine ...
1,777 篇 video compressio...
1,700 篇 decoding
1,314 篇 streaming media
1,179 篇 bit rate
1,114 篇 encoding
862 篇 quantization
829 篇 video coding
706 篇 watermarking
646 篇 discrete wavelet...
620 篇 robustness
603 篇 image reconstruc...
602 篇 psnr
536 篇 pixel
468 篇 bandwidth
461 篇 feature extracti...
439 篇 image quality
404 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 institute of com...
14 篇 department of el...
14 篇 at and t bell la...
14 篇 david samoff res...
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

10,152 篇 英文
55 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 10258 条记录，以下是4751-4760 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：

Residual Hybrid Attention Network for Compression Artifact Reduction

Residual Hybrid Attention Network for Compression Artifact R...

引用

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

作者： Bingchun Luo Wei Yu School of Computer Science and Technology Harbin Institute of Technology Weihai

Residual Hybrid Attention Network (RHAN) can restore images of arbitrary compression quality through flexibly fusing high-frequency features in the spatial and frequency domains based on the input quality factor. Specifically, to remove the compression artifacts, we propose a hybrid attention block (HAB) to adaptively restore the loss of high-frequency components, which parallelly predicts attention maps along two separate dimensions spatial and frequency spectra. To recover the compressed image flexibly and controllably, we further design a modulation decompression block (MDB), which employs a prior factor to learn a pair of modulation parameters and performs adaptively affine transformation on the obtained high-frequency features, thereby achieving high-quality image restoration at arbitrary compression levels. The quantitative and qualitative experiments on various public data sets show that the RHAN achieves the best performance and optimal visual perceptual quality in the JPEG image restoration with arbitrary compression levels.

关键词： Q-factor Visualization Adaptation models Image coding Frequency modulation Frequency-domain analysis transform coding

来源：评论

学校读者我要写书评

暂无评论

A super-resolution image recovery of movies with an outer approximation of framewise MPEG quantization constraint

A super-resolution image recovery of movies with an outer ap...

引用

Midwest Symposium on Circuits and Systems (MWSCAS)

作者： H. Hasegawa T. Ono I. Yamada K. Sakaniwa Department of Communications & Integrated Systems Tokyo Institute of Technology Meguro Tokyo Japan

In this paper, we propose an iterative MPEG super-resolution method based on adaptive projected subgradient method as stated in Yamada and Ogura (2003). We propose an efficient operator that approximates convex projection onto a set characterizing framewise quantization, whereas a conventional method can only handle a convex projection defined for each DCT coefficient of a frame. By using the operator, the proposed method generates a sequence that converges to a solution of super-resolution problem defined in terms of quantization error of MPEG compression.

关键词： Image resolution Motion pictures Quantization transform coding Image coding Iterative methods Discrete cosine transforms Degradation Image converters Redundancy

来源：评论

学校读者我要写书评

暂无评论

A selective transport framework for delivery MVC video over MPEG-2 TS

A selective transport framework for delivery MVC video over ...

引用

IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)

作者： Deng Wu Lifeng Sun Shiqiang Yang Department of Computer Science and Technology Tsinghua University Beijing China

Multiview video has gained significant interest in recent years. Generally speaking, Multiview video has more than one views from slightly different angles of the same scene. The huge amount of video data and the heterogeneous network condition pose great challenge for the transport of multiview video through internet or broadcast networks. In order to support variety of 3D application scenarios, selective transport of multi view video has to be deployed. This paper proposes a priority based selective transport framework of multiview video over MPEG-2 Transport Stream. The proposed framework achieves selective transport by extracting the related view components from MVC video as well as discarding lowest priority view components without obstructing the decoding process at the receiver client when the transport bandwidth is insufficient. To the best of our knowledge, this paper is the first to investigate a priority-based selective transport framework for delivery MVC video over MPEG-2 transport stream.

关键词： transform coding Receivers Decoding Streaming media Prediction algorithms Three dimensional displays Bandwidth

来源：评论

学校读者我要写书评

暂无评论

HUBFIRE — A multi-class SVM based JPEG steganalysis using HBCL statistics and Fr Index

HUBFIRE — A multi-class SVM based JPEG steganalysis using H...

引用

International Conference on Security and Cryptography (SECRYPT)

作者： Veena H. Bhat S. Krishna P. Deepa Shenoy K. R. Venugopal L. M. Patnaik Department of Computer Science and Engineering University of Visvesvaraya College of Engineering Bangalore University Bangalore India Defence Institute of Advanced Technology Pune India

Blind Steganalysis attempts to detect steganographic data without prior knowledge of either the embedding algorithm or the `cover' image. This paper proposes new features for JPEG blind steganalysis using a combination of Huffman Bit Code Length (HBCL) Statistics and File size to Resolution ratio (FR Index); the Huffman Bit File Index Resolution (HUBFIRE) algorithm proposed uses these functionals to build the classifier using a multi-class Support Vector Machine (SVM). JPEG images spanning a wide range of resolutions are used to create a `stego-image' database employing three embedding schemes - the advanced Least Significant Bit encoding technique, that embeds in the spatial domain, a transform-domain embedding scheme: JPEG Hide-and-Seek and Model Based Steganography which employs an adaptive embedding technique. This work employs a multi-class SVM over the proposed `HUBFIRE' algorithm for statistical steganalysis, which is not yet explored by steganalysts. Experiments conducted prove the model's accuracy over a wide range of payloads and embedding schemes.

关键词： transform coding Support vector machines Image resolution Payloads Indexes Image coding Mathematical model

来源：评论

学校读者我要写书评

暂无评论

Digital image forgery detection on artificially blurred images

Digital image forgery detection on artificially blurred imag...

引用

International Conference on Emerging Trends in Communication, Control, Signal Processing & Computing Applications (C2SPCA)

作者： Hrudya P Lekha S. Nair Adithya S.M Reshma Unni Vishnu Priya H Prabaharan Poornachandran Amrita Center for Cyber Security Amrita Vishwa Vidyapeetham Kollam Kerala India

In this digital era, lot of information are expressed through images. Various social networking websites, such as Facebook, Twitter, MySpace etc. provides a platform for the users to post up almost any type of picture or photo. However, with the advancement in image editing technologies, many users have become victims of digital forgery as their uploaded images were forged for malicious activities. We have come up with a system which detects image forgery based on edge width analysis and center of gravity concepts. An algorithm based on edge detection is also used to identify the fuzzy edges in the forged digital image. The forged object in the image is highlighted by applying Flood fill algorithm. Different types of image forgeries like Image splicing, Copy-Move image forgery etc. can be detected. This method also reveals multiple forgeries in the same image. The proposed system is capable of detecting digital image forgeries in various image formats efficiently. The results we obtained after the analysis of different images shows that the proposed system is 95% efficient.

关键词： Forgery Image edge detection Digital images Image coding transform coding Gravity Splicing

来源：评论

学校读者我要写书评

暂无评论

Study of Copy-Move Forgery Detection Techniques in Images

Study of Copy-Move Forgery Detection Techniques in Images

引用

International Conference on Reliability, Infocom Technologies and Optimization (ICRITO) (Trends and Future Directions)

作者： Ankita Bansal Aditya Atri Division of Information Technology Netaji Subhas University of Technology Delhi India

ISBN: (数字)9781728170169

ISBN: (纸本)9781728170176

With the evolution of tools used for image editing in today's world, the images can be manipulated with ease. Resizing, cloning, cropping, etc., becomes easy and fast while on the other end, a great challenge in front of the world is determining whether an image has been tempered or not. A very popular manipulation method for tempering images is Copy-move forgery in which a part of an image is duplicated and pasted in some other location of the same image. Major research has been going on in detection of copy-move forgery. A detailed review and analytical discussion has been presented in this paper along with pros and cons of each of the detection techniques used for copy-move forgery detection.

关键词： Forgery Feature extraction Discrete cosine transforms Image coding Robustness transform coding Splicing

来源：评论

学校读者我要写书评

暂无评论

DCT-domain watermark detector using a normal inverse Gaussian prior

DCT-domain watermark detector using a normal inverse Gaussia...

引用

Canadian Conference on Electrical and Computer Engineering (CCECE)

作者： M. I. H. Bhuiyan R. Rahman Department of Electrical and Electronic Engineering Bangladesh University of Engineering and Technology Dhaka Bangladesh

In this paper, a blind statistical method for watermark detection is developed using a symmetrical normal inverse Gaussian (SNIG) prior for modelling the block-DCT coefficients of images. The proposed detector is motivated by the superior ability of the SNIG prior in capturing the statistics of the DCT coefficients as compared to the conventionally used priors. Analytical expressions are derived for the Bayesian log-likelihood ratio and the corresponding mean and variance under null and alternative hypotheses. Extensive experiments are carried out using standard images to study the performance of the proposed detector and the results show that it performs better than several existing detectors in terms of the associated probabilities of false alarm and detection for watermarks of varying strength.

关键词： Watermarking Discrete cosine transforms Detectors transform coding Image processing Solids

来源：评论

学校读者我要写书评

暂无评论

Zero-Watermark Method Based on Non-Uniform BTC Partition

Zero-Watermark Method Based on Non-Uniform BTC Partition

引用

International Conference on Wavelet Analysis and Pattern Recognition (ICWAPR)

作者： Yichen Li U Kintak Faculty of Information Technology Macau University of Science and Technology Macau China

ISBN: (纸本)9781665466127

Zero-watermarking is an effective method to better pro tect the copyright of images. This paper proposes a new ze ro-watermarking algorithm based on Non-uniform Block Tr uncation coding (NUBTC). In the proposed scheme, the ori ginal image is divided into different rectangular grids accor ding to the non-uniform block-truncation-coding partition, a nd the feature matrix is formed by calculating number of rectangles in each 8*8 sub-area. The obtained feature matri x is further mapped to a binary watermark after Arnold s crambling, and both of them are stored as the zero water mark. Experimental results indicate that the extracted zero-watermark could keep more than 90% similarity to the un attacked zero-watermark under JPEG com pression attack a nd other various noise attacks, thus proving that the propo sed zero-watermark scheme is very robust when sufferring attacks.

关键词： Image coding transform coding Watermarking Feature extraction Wavelet analysis Encoding Partitioning algorithms

来源：评论

学校读者我要写书评

暂无评论

Parallelization and characterization of SIFT on multi-core systems

Parallelization and characterization of SIFT on multi-core s...

引用

IEEE International Workshop/Symposium on Workload Characterization

作者： Hao Feng Eric Li Yurong Chen Yimin Zhang Application Research Laboratory Intel China Research Center Limited China

This paper parallelizes and characterizes an important computer vision application -Scale Invariant Feature transform (SIFT) both on a Symmetric Multiprocessor (SMP) platform and a large scale Chip Multiprocessor (CMP) simulator. SIFT is an approach for extracting distinctive invariant features from images and has been widely applied. In many computer vision problems, a real-time or even super-real-time processing capability of SIFT is required. To meet the computation demand, we optimize and parallelize SIFT to accelerate its execution on multi-core systems. Our study shows that SIFT can achieve a 9.7x ~ llx speedup on a 16 -core SMP system. Furthermore, Single Instruction Multiple Data (SIMD) and cache-conscious optimization bring another 85% performance gain at most. But it is still three times slower than the real-time requirement for High-Definition Television (HDTV) image. Then we study the performance of SIFT on a 64 -core CMP simulator. The results show that for HDTV image, SIFT can achieve an excellent speedup of 52 x and run in real-time finally. Besides the parallelization and optimization work, we also conduct a detailed performance analysis for SIFT on those two platforms. We find that load imbalance significantly limits the scalability and SIFT suffers from intensive burst memory bandwidth requirement on the 16 -core SMP system. However, on the 64 -core CMP simulator the memory pressure is not high due to the shared last-level cache (LLC) which accommodates tremendous read-write sharing in SIFT. Thus it does not affect the scaling performance. In short, understanding the characterization of SIFT can help identify the program bottlenecks and give us further insights into designing better systems.

关键词： Bandwidth HDTV Optimization Scalability Pixel transform coding Histograms

来源：评论

学校读者我要写书评

暂无评论

Smart video packet trimming technique over congested networks

Smart video packet trimming technique over congested network...

引用

International Conference on Information and Communication Technology Convergence (ICTC)

作者： Amer Zaheer Tariq Saraj Asim Rasheed Touseef Javed Amir Qayyunr Center of Research in Networks and Telecom (CoReNeT) Muhammad Ali Jinnah University Islamabad Pakistan

In past few years, multimedia traffic is growing and Internet have maximum portion of multimedia traffic. This traffic trend is expected to increase due to multimedia applications. Best effort Internet architecture poses design limitations for multimedia traffic. IPTV like applications require higher bandwidth, low packet loss, low delays and jitter effects to transmit high quality video contents. Packet loss due to limited band width and congestion can negatively impact on Quality of Experience(QoE). Packet trimming based innovative scheme is proposed in this article to deal packet loss and improve QoE. Proposed scheme eliminate the chance of packet loss during congestion. Packet trimming scheme better handle congestion which improve video smoothness, interactivity and frame quality. Test-bed implementation and subsequent analyses shows promising improvement in video Quality of Experience over same Quality of Service.

关键词： transform coding Streaming media Video recording Quality assessment Visualization Packet loss

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 << < 472 473 474 475 476 477 478 479 480 481 > >>

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：