咨询与建议

限定检索结果

文献类型

  • 9,244 篇 会议
  • 1,048 篇 期刊文献
  • 1 篇 学位论文

馆藏范围

  • 10,293 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 2,358 篇 工学
    • 1,365 篇 电气工程
    • 923 篇 计算机科学与技术...
    • 575 篇 信息与通信工程
    • 233 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
    • 37 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
  • 307 篇 理学
    • 130 篇 系统科学
    • 104 篇 物理学
    • 28 篇 数学
    • 28 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

  • 10,293 篇 transform coding
  • 5,190 篇 image coding
  • 2,139 篇 discrete cosine ...
  • 1,780 篇 video compressio...
  • 1,704 篇 decoding
  • 1,315 篇 streaming media
  • 1,181 篇 bit rate
  • 1,117 篇 encoding
  • 865 篇 quantization
  • 832 篇 video coding
  • 706 篇 watermarking
  • 647 篇 discrete wavelet...
  • 624 篇 robustness
  • 608 篇 image reconstruc...
  • 602 篇 psnr
  • 535 篇 pixel
  • 472 篇 bandwidth
  • 462 篇 feature extracti...
  • 444 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
  • 28 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 wiegand thomas
  • 15 篇 krzysztof wegner
  • 14 篇 jakub stankowski
  • 14 篇 m. vetterli
  • 14 篇 y. nakajima
  • 14 篇 thomas wiegand
  • 14 篇 tomasz grajek

语言

  • 10,185 篇 英文
  • 57 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"
10293 条 记 录,以下是4601-4610 订阅
排序:
An invisible dual watermarking scheme for authentication and copyrights protection
An invisible dual watermarking scheme for authentication and...
收藏 引用
International Conference on Emerging Technologies, ICET
作者: Fida Ullah Khattak Abdul Bais Yahya M. Khawaja Department of Computer Systems Engineering N. W. F. P. University of Engineering and Technology Peshawar Pakistan Department of Electrical Engineering Sarhad University of Science and Information Technology Peshawar Pakistan
This paper focuses on two problems, authentication and copyrights protection, faced by digital media in general and digital images in particular. We discuss how two algorithms defined separately can be combined to pro... 详细信息
来源: 评论
Image authentication and tamper detection using two complementary watermarks
Image authentication and tamper detection using two compleme...
收藏 引用
IEEE International Conference on Image Processing
作者: Xiaojun Qi Xing Xin Ran Chang Computer Science Department Utah State University Logan UT USA
This paper presents a novel semi-fragile watermarking scheme for image authentication and tamper detection. The proposed scheme extracts content-based image features from the approximation subband in the wavelet domai... 详细信息
来源: 评论
An optimal transform architecture for H.264/AVC
An optimal transform architecture for H.264/AVC
收藏 引用
International Multimedia, Signal Processing and Communication Technologies, IMPACT
作者: A. K. Prasoon K. Rajan School of Electrical Sciences Vellore of Institute of Technology Vellore India Department of Physics IISc Bangalore India
This paper presents the design of the area optimized integer two dimensional discrete cosine transform (2-D DCT) used in H.264/AVC codecs. The 2-D DCT calculation is performed by utilizing the separability property, i... 详细信息
来源: 评论
Spatial-temporal correlation based mode decision algorithm for H.264/AVC
Spatial-temporal correlation based mode decision algorithm f...
收藏 引用
IEEE International Symposium on Consumer Electronics (ISCE)
作者: Hiroki Kozu Hiroki Kuniyasu Tian Song Takashi Shimamoto Graduate School of Advanced Technology and Science University of Tokushima Tokushima Japan Computer Systems Engineering Institute of Technology and Science Graduate School of Engineering University of Tokushima Tokushima Japan
In this work, a fast mode decision algorithm for H.264/AVC is proposed. H.264/AVC achieves high coding efficiency by introducing rate-distortion optimized (RDO) method. However, it induced very high computation comple... 详细信息
来源: 评论
Reducing Leakage Power of JPEG Image on Asymmetric SRAM
Reducing Leakage Power of JPEG Image on Asymmetric SRAM
收藏 引用
IEEE International Conference on Computational Science and Engineering, CSE
作者: Yu-Hsun Lin Xuan-Yi Lin Yeh-Ching Chung Department of Computer Science National Tsing Hua University Hsinchu Taiwan
Leakage power becomes a key challenge and occupies an increasing portion of the total power consumption in nano-scale circuit design. There are many novel cache designs to reduce the leakage power based on the charact... 详细信息
来源: 评论
Distributed Block-Dependent Watermarking Method for JPEG2000 Image Authentication
Distributed Block-Dependent Watermarking Method for JPEG2000...
收藏 引用
International Workshop on Database Technology and Applications
作者: Shewen Sun Zhaohong Li School of Mechanical and Electrical Information Engineering Beijing Polytechnic College Beijing China School of Mechanical and Electrical Information Engineering China University of Mining and Technology Beijing China School of Mechanical and Electrical Information Engineering Beijing Jiaotong University Beijing China
Two essential benefits, the resistance to the counterfeiting attack and the tamper localization accuracy, of the fragile watermarking methods are mutually restricted. In this paper, a novel distributed block-dependent... 详细信息
来源: 评论
A comparison study between spiral and traditional fractal image compression
A comparison study between spiral and traditional fractal im...
收藏 引用
International Conference on Computer Engineering and Systems
作者: A. Selim M. M. Hadhoud Omar M. Salem ERTU Egypt Department of Information Technology Faculty of Computers and Information Menoufia University Shibin El Kom Egypt Department of Electronics and Electrical Communications Faculty of Electronic Engineering Menoufia University Menoufia Egypt
In this paper, we study the affect of using the spiral architecture instead of the square block decomposition and in fractal compression. Comparisons with other systems like the conventional square and the simplified ... 详细信息
来源: 评论
Fast mode decision for P-Slices in H.264/AVC based on probabilistic learning
Fast mode decision for P-Slices in H.264/AVC based on probab...
收藏 引用
International Conference on Advanced Communication Technology (ICACT)
作者: Xinxin Zhou Chun Yuan Chunhua Li Yuzhuo Zhong Division of Information Technology Graduate School at Shenzhen Tsinghua University Shenzhen China
In this paper, a fast mode decision algorithm for P-Slices in H.264/AVC is proposed. The algorithm is based on probabilistic learning. Spatial correlation between neighboring macroblocks is exploited by a Bayesian cla... 详细信息
来源: 评论
Interactive system design and end-to-end optimization in sensor networks
Interactive system design and end-to-end optimization in sen...
收藏 引用
International Workshop on Wearable Micro and Nano Technologies for Personalized Health (pHealth)
作者: Knut Grythe Arne Lie Ilangko Balasingham Department of Communication Systems SINTEF ICT Norway Interventional Centre Rikshospitalet University Hospital Norway Department of Electronics and Telecommunications Norwegian University of Science and Technology Norway
This paper proposes an application oriented four layered quality of service (QoS) stack for wireless sensor networks (WSN), including a supporting system architecture for interacting with WSNs using the MPEG-21 multim... 详细信息
来源: 评论
No-reference quality assessment of wavelet-compressed images
No-reference quality assessment of wavelet-compressed images
收藏 引用
Eurocon
作者: Denis A. Zaramensky Andrey L. Priorov Vladimir A. Bekrenev Vladimir E. Soloviev Laboratory of Digital Circuits and Signals physics faculty Yaroslavl State University Russia
Measurement of image and video quality is crucial for many image-processing algorithms, such as acquisition, compression, restoration, enhancement and reproduction. In this paper a no-reference quality assessment algo... 详细信息
来源: 评论