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检索条件"主题词=Model-based coding"
59 条 记 录,以下是41-50 订阅
排序:
The emerging JBIG2 standard
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 1998年 第7期8卷 838-848页
作者: Howard, PG Kossentini, F Martins, B Forchhammer, S Rucklidge, WJ AT&T Bell Labs Red Bank NJ USA Univ British Columbia Dept Elect & Comp Engn Vancouver BC V6T 1Z4 Canada Tech Univ Denmark DK-2800 Lyngby Denmark Xerox Corp Palo Alto CA USA
The Joint Bi-Level Image Experts Group (JBIG), an international study group affiliated with ISO/IEC and ITU-T, is in the process of drafting a new standard for lossy and lossless compression of bilevel images. The new... 详细信息
来源: 评论
Two- versus three-dimensional object-based video compression
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 1997年 第2期7卷 391-397页
作者: Tekalp, AM Altunbasak, Y Bozdagi, G UNIV ROCHESTER CTR ELECT IMAGING SYSTROCHESTERNY 14627
This paper compares two-dimensional (2-D) and three-dimensional (3-D) object modeling in terms of their capabilities and performance (peak signal-to-noise-ratio and visual image quality) for very low bitrate video cod... 详细信息
来源: 评论
FAP extraction using three-dimensional motion estimation
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 2002年 第10期12卷 865-876页
作者: Sarris, N Grammalidis, N Strintzis, MG Aristotle Univ Thessaloniki GR-54006 Thessaloniki Greece
An integral part of the MPEG-4 standard is the definition of face animation parameters (FAPs). This paper presents a method for the determination of FAPs by using three dimensional (3-D) rigid and nonrigid motion of h... 详细信息
来源: 评论
Hierarchical motion estimation with content-based meshes
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 2003年 第10期13卷 1000-1005页
作者: Al-Regib, G Altunbasak, Y Mersereau, RM Georgia Inst Technol Ctr Signal & Image Proc Atlanta GA 30332 USA
Two-dimensional mesh-based models provide a good alternative to motion estimation and compensation. The estimation of the best node-point motion vectors is a challenging task. To this effect, Nakaya and Harashima prop... 详细信息
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Facial model adaptation from a monocular image sequence using a textured polygonal model
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SIGNAL PROCESSING-IMAGE COMMUNICATION 2002年 第5期17卷 373-392页
作者: Chang, YJ Chen, YC Natl Tsing Hua Univ Dept Elect Engn Hsinchu 30013 Taiwan
Although several algorithms have been proposed for facial model adaptation from image sequences, the insufficient feature set to adapt a full facial model, imperfect matching of feature points, and imprecise head moti... 详细信息
来源: 评论
MPEG-4 facial animation in video analysis and synthesis
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INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY 2003年 第5期13卷 245-256页
作者: Eisert, P Heinrich Hertz Inst Nachrichtentech Berlin GmbH Fraunhofer Inst Telecommun Image Proc Dept D-10587 Berlin Germany
MPEG-4 supports the definition, encoding, transmission, and animation of 3-D head and body models. These features can be used for a variety of different applications ranging from low bit-rate video coding to character... 详细信息
来源: 评论
Geometry-assisted image-based rendering for facial analysis and synthesis
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SIGNAL PROCESSING-IMAGE COMMUNICATION 2006年 第6期21卷 493-505页
作者: Eisert, Peter Rurainsky, Mrgen Heinrich Hertz Inst Nachrichtentech Berlin GmbH Fraunhofer Inst Telecommun D-10587 Berlin Germany
In this paper, we present an image-based method for the tracking and rendering of faces. We use the algorithm in an immersive video conferencing system where multiple participants are placed in a common virtual room. ... 详细信息
来源: 评论
Facial feature analysis in dynamic bandwidth environments: a genetic approach
Facial feature analysis in dynamic bandwidth environments: a...
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IEEE Congress on Evolutionary Computation
作者: Larson, Eric C. Yen, Gary G. Oklahoma State Univ Sch Elect & Comp Engn Stillwater OK 74078 USA
Facial feature tracking for model-based coding has evolved over the past decades. Of particular interest is its application in very low bit rate coding in which optimization is used to analyze head and shoulder sequen... 详细信息
来源: 评论
Global Object Representation of Scene Surveillance Video based on model and Feature Parameters  16th
Global Object Representation of Scene Surveillance Video Bas...
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16th Pacific-Rim Conference on Multimedia (PCM)
作者: Ma, Minsheng Hu, Ruimin Chen, Shihong Xiao, Jing Wang, Zhongyuan Qu, Shenming Wuhan Univ Comp Sch Natl Engn Res Ctr Multimedia Software Wuhan 430072 Peoples R China Collaborat Innovat Ctr Geospatial Technol Wuhan Peoples R China Henan Univ Sch Software Kaifeng Peoples R China
Scene surveillance video is a kind of video which are captured by stationary camera for a long time in specific surveillance scene. Due to regular movement of vehicles with similarity structures, models and appearance... 详细信息
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3D model-based head tracking
3D model-based head tracking
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1997 Conference on Visual Communications and Image Processing
作者: Colmenarez, A Lopez, R Huang, TS Univ. of Illinois/Urbana-Champaign (United States)
This paper introduces a new approach to feature-based head tracking and pose estimation. Head tracking and pose estimation find their most important applications in motion analysis for model-based video coding. The pr... 详细信息
来源: 评论