咨询与建议

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"
10258 条 记 录,以下是4771-4780 订阅
排序:
Design of high-performance transform and quantization circuit for unified video CODEC
Design of high-performance transform and quantization circui...
收藏 引用
IEEE Asia-Pacific Conference on Circuits and Systems
作者: Seonyoung Lee Kyeongsoon Cho Department of Electronics and Information Engineering Hankuk University of Foreign Studies Yongin si South Korea
This paper presents the new high-performance circuit architecture of the transform and quantization for unified video CODEC. The proposed architecture can be applied to all kinds of transforms for the video compressio... 详细信息
来源: 评论
A Novel Reversible Semi-Fragile Watermarking Algorithm of MPEG-4 Video for Content Authentication
A Novel Reversible Semi-Fragile Watermarking Algorithm of MP...
收藏 引用
International Symposium on Intelligent Information Technology Application, IITA
作者: Hui Chen Zhenyong Chen Xiao Zeng Wei Fan Zhang Xiong School of Computer Science and Engineering Beihang University Beijing China
This paper proposes an invertible semi-fragile video watermarking algorithm using a hash function to authenticate the MPEG-4 video contents. The proposed algorithm embeds two watermarks into I frame while encoding YUV... 详细信息
来源: 评论
Parallel JPEG algorithms for still image compression
Parallel JPEG algorithms for still image compression
收藏 引用
IEEE Southeastcon
作者: P. Monnes B. Furht IBM Personal Computer Company Boca Raton FL USA Computer Science and Engineering Florida Atlantic University Boca Raton FL USA
One of the hottest areas of development in the computer industry today is motion video on the desktop. Both motion video and still image video pose some new problems: huge storage and high bandwidths are required to s... 详细信息
来源: 评论
Full-body animations and new faces for a WebGL based MPEG-4 avatar
Full-body animations and new faces for a WebGL based MPEG-4 ...
收藏 引用
International Conference on Cognitive Infocommunications (CogInfoCom)
作者: Roland Rácz Ákos Tóth Ildikó Papp Roland Kunkli Faculty of Informatics Kassai University of Debrecen Debrecen Hungary
In this demo we would like to present the current development status of our WebGL based MPEG-4 virtual human. The main result is the extension of our previous talking head with full-body animations and new customazibl... 详细信息
来源: 评论
A Porn Video Detecting Method Based on Motion Features Using HMM
A Porn Video Detecting Method Based on Motion Features Using...
收藏 引用
International Symposium on Computational Intelligence and Design, ISCID
作者: Zhiyi Qu Yanmin Liu Ying Liu Kang Jiu Yong Chen School of Information Science & Engineering Lanzhou University Lanzhou China
This paper proposes a method of identified reciprocating motion in pornographic video from other human action using Hidden Markov Model (HMM). The motion vectors are obtained by decoding the compressed MPEG video. The... 详细信息
来源: 评论
VLSI design for low-power data-adaptive motion estimation
VLSI design for low-power data-adaptive motion estimation
收藏 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... 详细信息
来源: 评论
Lossless image compression using BPNN predictor with contextual error feedback
Lossless image compression using BPNN predictor with context...
收藏 引用
International Multimedia, Signal Processing and Communication Technologies, IMPACT
作者: Emjee Puthooran R S Anand S Mukherjee Indian Institute of Technology Roorkee Roorkee India
In this paper, a lossless image coding scheme is proposed, which is based on Back Propagation Neural Network (BPNN) pixel value predictor, contextual error feedback and context adaptive arithmetic coding. The use of B... 详细信息
来源: 评论
Compressive sensing image recovery based on equalization quantization noise model
Compressive sensing image recovery based on equalization qua...
收藏 引用
IEEE Visual Communications and Image Processing (VCIP)
作者: Zhen Zhang Yunhui Shi Baocai Yin College of Computer Science and Technology Beijing University of Technology Beijing China
Existing image codec technologies are based on transform which make image signal can be compressed, while quantization has been used to control bit rates. Compressive sensing (CS), which is a novel signal processing a... 详细信息
来源: 评论
PCR-assist CBR for delivering pre-recorded MPEG-2 transport streams
PCR-assist CBR for delivering pre-recorded MPEG-2 transport ...
收藏 引用
IEEE International Conference on Multimedia Computing and Systems (ICMCS)
作者: D.H.C. Du Jenwei Hsieh Horng-Juing Lee Taisheng Chang Distributed Multimedia Research Center & Computer Science Department University of Minnesota USA
Transmitting compressed variable bit-rate (VBR) video with a traditional constant bit-rate (CBR) service for continuous playback requires a large buffer on the viewer's side. In this paper, we study a new CBR tran... 详细信息
来源: 评论
DWT based robust image hashing algorithm
DWT based robust image hashing algorithm
收藏 引用
International Conference on Networked Computing (INC)
作者: Yuanyuan Hu Xiamu Niu Information Security Technique Research Center Shenzhen Graduate School Harbin Institute of Technology Shenzhen China Information Countermeasure Technique Research Institute Harbin Institute of Technology Harbin China
JPEG 2000 is a wavelet-based image compression standard and coding system. It will supersede the original JPEG standard in the future. Compared with Counterlet transform or Gabor filter, wavelet transform used in JPEG... 详细信息
来源: 评论