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检索条件"主题词=Model-based coding"
59 条 记 录,以下是31-40 订阅
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Sliding adjustment for 3D video representation
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EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING 2002年 第10期2002卷 1088-1101页
作者: Galpin, F Morin, L Univ Rennes 1 IRISA INRIA Rennes F-35042 Rennes France
This paper deals with video coding of static scenes viewed by a moving camera. We propose an automatic way to encode such video sequences using several 3D models. Contrary to prior art in model-based coding where 3D m... 详细信息
来源: 评论
Real-time estimation of long-term 3-D motion parameters for SNHC face animation and model-based coding applications
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 1999年 第2期9卷 255-263页
作者: Smolic, A Makai, B Sikora, T Heinrich Hertz Inst Commun Technol D-10587 Berlin Germany
In this paper, we present two recursive methods for the real-time estimation of long-term three-dimensional (3-D) motion parameters from monocular image sequences suitable for synthetic/natural hybrid coding face anim... 详细信息
来源: 评论
Integrating active face tracking with model based coding
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PATTERN RECOGNITION LETTERS 1999年 第6期20卷 651-657页
作者: Yin, LJ Basu, A Univ Alberta Dept Comp Sci Edmonton AB T6G 2H1 Canada
In this paper, input from an active camera is used for MPEG4 model based coding. First, the background is compensated considering a moving camera (tilt or pan). Second, the talking face is segmented from the compensat... 详细信息
来源: 评论
Smoothing algorithms for clip-and-paste model-based video coding
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IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 1999年 第2期45卷 427-435页
作者: Hao, SS Lee, MF Yang, JF Natl Cheng Kung Univ Dept Elect Engn Tainan 701 Taiwan
model-based video coding has been adopted as a core experiment in ISO MPEG-4 standard. The clip-and-paste technique for putting video objects in line is an important tool to reduce the transmission rate. To assist the... 详细信息
来源: 评论
CBIT - Context-based image transmission
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IEEE TRANSACTIONS ON INFORMATION TECHNOLOGY IN BIOMEDICINE 2001年 第2期5卷 159-170页
作者: Salous, MN Pycock, D Cruickshank, GS Univ Birmingham Sch Elect & Elect Engn Birmingham B15 2TT W Midlands England Queen Elizabeth Hosp Dept Neurosurg Birmingham B15 2TH W Midlands England
Few networks offer sufficient bandwidth for the transmission of high resolution two- and three-dimensional medical image sets without incurring significant latency. Traditional compression methods achieve bit-rate red... 详细信息
来源: 评论
Modified Hough transforms for object feature extraction
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JOURNAL OF INFORMATION SCIENCE AND ENGINEERING 2001年 第1期17卷 133-145页
作者: Yang, JF Hao, SS Natl Cheng Kung Univ Dept Elect Engn Tainan 701 Taiwan
In this paper, we propose the use of modified Hough transforms to efficiently extract object feature parameters, which are usually contaminated by heavily noisy corrugation and discontinuity. The modified HT (MHT) is ... 详细信息
来源: 评论
A new approach to wire-frame tracking for semantic model-based moving image coding
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SIGNAL PROCESSING-IMAGE COMMUNICATION 2000年 第6期15卷 567-580页
作者: Antoszczyszyn, PM Hannah, JM Grant, PM Univ Edinburgh Dept Elect Engn Edinburgh EH9 3JL Midlothian Scotland
Automatic wire-frame fitting and automatic wire-frame tracking are the two most important and most difficult issues associated with semantic-based moving image coding. A novel approach to high-speed tracking of import... 详细信息
来源: 评论
model-aided coding: A new approach to incorporate facial animation into motion-compensated video coding
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 2000年 第3期10卷 344-358页
作者: Eisert, P Wiegand, T Girod, B Univ Erlangen Nurnberg Telecommun Lab D-91058 Erlangen Germany
We show that traditional waveform coding and 3-D model-based coding are not competing alternatives, but should be combined to support and complement each other. Both approaches are combined such that the generality of... 详细信息
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Global motion estimation in model-based image coding by tracking three-dimensional contour feature points
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 1998年 第2期8卷 181-190页
作者: Pei, SC Ko, CW Su, MS Natl Taiwan Univ Dept Elect Engn Taipei 10764 Taiwan
Recently a new type of video coding method called model-based image coding has attracted much attention as a potential candidate for low bit-rate visual communication services, This technique reconstructs the facial i... 详细信息
来源: 评论
3D object articulation and motion estimation in model-based stereoscopic videoconference image sequence analysis and coding
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SIGNAL PROCESSING-IMAGE COMMUNICATION 1999年 第10期14卷 817-840页
作者: Tzovaras, D Kompatsiaris, I Strintzis, MG Aristotelian Univ Salonika Dept Elect & Comp Engn Informat Proc Lab GR-54006 Salonika Greece
This paper describes a procedure for model-based analysis and coding of both left and right channels of a stereoscopic image sequence. The proposed scheme starts with a hierarchical dynamic programming technique for m... 详细信息
来源: 评论