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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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A LAYERED coding SYSTEM FOR VERY-LOW BIT-RATE VIDEO coding
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SIGNAL PROCESSING-IMAGE COMMUNICATION 1995年 第4-6期7卷 267-278页
作者: MUSMANN, HG Institut für Theoretische Nachrichtentechnik und Informationsverarbeitung Universität Hannover Germany
Known coding techniques for transmitting moving images at very low bit rates are explained by the source models on which these coding techniques are based. It is shown that with motion-compensated hybrid coding, objec... 详细信息
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Recent and current research on very low bit-rate video coding in Japan
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IEICE TRANSACTIONS ON COMMUNICATIONS 1996年 第10期E79B卷 1415-1424页
作者: Kaneko, M Department of Information and Communication Engineering School of Engineering University of Tokyo Tokyo 113 Japan
This paper presents an overview of research activities in Japan in the field of very low bit-rate video coding. Related research based on the concept of ''intelligent image coding'' started in the mid-... 详细信息
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An approach to distributed video coding using 3D face models
An approach to distributed video coding using 3D face models
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IEEE International Conference on Image Processing (ICIP 2006)
作者: Artigas, Xavi Torres, Luis Tech Univ Catalonia Barcelona Spain
Distributed Source coding (DSC), formulated thirty years ago, is lately witnessing a great research effort. This effort is encouraged by emerging new applications that could greatly benefit from the properties inheren... 详细信息
来源: 评论
VIDEO SEQUENCE QUANTIZER FOR VERY-LOW BIT-RATE MOVING PICTURE coding
VIDEO SEQUENCE QUANTIZER FOR VERY-LOW BIT-RATE MOVING PICTUR...
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Conference on Visual Communications and Image Processing 94
作者: YAMADA, A OHTA, M NISHITANI, T NEC CORP LTD INFORMAT TECHNOL RES LABSMIYAMAE KUKAWASAKIKANAGAWA 216JAPAN
This paper describes a novel intelligent low bit rate coding technique for motion pictures, named Video Sequence Quantizer (VSQ). VSQ is one of the semantic coding. The concept is very simple. The encoder extracts mot... 详细信息
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Motion tracking of human mouth by generalized deformable models
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PATTERN RECOGNITION LETTERS 1999年 第9期20卷 879-887页
作者: Chan, SY Ngo, CW Lai, KF Nanyang Technol Univ Sch Appl Sci Singapore 63978 Singapore Kent Ridge Digital Labs Singapore 119613 Singapore
We propose and evaluate four trackers for tracking the shape, motion and deformation of a human mouth in video sequences. The trackers are suitable for use in very low bitrate video coding systems. (C) 1999 Elsevier S... 详细信息
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model-based global and local motion estimation for videoconference sequences
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 2004年 第9期14卷 1156-1161页
作者: Calvagno, G Fantozzi, F Rinaldo, R Viareggio, A Univ Padua Dipartimento Ingn Informaz I-35131 Padua Italy Univ Udine Dipartimento Ingn Elettr Gest & Meccan I-33100 Udine Italy
In this work, we present an algorithm for face 3-D motion estimation in videoconference sequences. The algorithm is able to estimate both the position of the face as an object in 3-D space (global motion) and the move... 详细信息
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The clustered causal state algorithm - Efficient pattern discovery for lossy data-compression applications
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COMPUTING IN SCIENCE & ENGINEERING 2006年 第5期8卷 59-67页
作者: Schmiedekamp, Mendel Subbu, Aparna Puoha, Shashi Penn State Univ Intelligent Control Dept Informat Sci & Technol Div Appl Res Lab University Pk PA 16802 USA
Pattern discovery is a potential boon for data compression, but current approaches are inefficient and produce cumbersome pattern descriptions. The clustered causal state algorithm is a new pattern-discovery algorithm... 详细信息
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Representing and compressing facial animation parameters using facial action basis functions
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 1999年 第3期9卷 405-410页
作者: Ahlberg, J Li, HB Linkoping Univ Dept Elect Engn Image Coding Grp S-58183 Linkoping Sweden
In model-based, or semantic, coding, parameters describing the nonrigid motion of objects, e.g., the mimics of a face, are of crucial interest. The facial animation parameters (FAP's) specified in MPEG-4 compose a... 详细信息
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Tracking a detected face with dynamic programming
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IMAGE AND VISION COMPUTING 2006年 第6期24卷 573-580页
作者: Yao, Zhengrong Li, Haibo Umea Univ Digital Media Lab S-90187 Umea Sweden
In this paper, we consider the problem of tracking a Moving human face in front of a video camera in real-time for a model-based coding application. The 3D head tracking in a MBC system could be implemented sequential... 详细信息
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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
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