Výsledky vyhledávání - "model-based coding"

Multiple-model coding scheme for electrical signal compression Autor Presvôts, Corentin, Kieffer, Michel, Prevost, Thibault, Panciatici, Patrick, Li, Zuxing, Piantanida, Pablo

“…This paper proposes a low-latency Multiple-Model Coding (MMC) approach to compress sampled electrical signal waveforms under encoding rate constraints. The…”
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Generating Realistic Facial Expressions with Wrinkles for Model-Based Coding Autor Yin, Lijun, Basu, Anup

“… Facial texture updating and compression are crucial to achieving realistic facial animation for low bit rate model-based coding…”
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Automatic 3-D face model adaptation for model-based coding of videophone sequences Autor Kampmann, M.

“…For model-based coding of videophone sequences at very low bit rates, an algorithm for the automatic adaptation of a generic 3-D face model to individual faces in videophone sequences is presented…”
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Face tracking for model-based coding and face animation Autor Ahlberg, Jörgen, Forchheimer, Robert

“…We present a face and facial feature tracking system able to extract animation parameters describing the motion and articulation of a human face in real‐time…”
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Integrating active face tracking with model based coding Autor Yin, Lijun, Basu, Anup

“…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…”
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Synthesizing realistic facial animations using energy minimization for model-based coding Autor Yin, Lijun, Basu, Anup, Bernögger, Stefan, Pinz, Axel

“…Accurate localization and tracking of facial features are crucial for developing high-quality model-based coding systems…”
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The emerging JBIG2 standard Autor Howard, P.G., Kossentini, F., Martins, B., Forchhammer, S., Rucklidge, W.J.

“… The new standard, informally referred to as JBIG2, will support model-based coding for text and halftones to permit compression ratios up to three times those of existing standards for lossless compression…”
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Nose shape estimation and tracking for model-based coding Autor Lijun Yin, Basu, A.

“…Feature extraction on the face plays an important role in applications of model based coding and human face recognition…”
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Real-time estimation of long-term 3-D motion parameters for SNHC face animation and model-based coding applications Autor Smolic, A., Makai, B., Sikora, T.

“…) motion parameters from monocular image sequences suitable for synthetic/natural hybrid coding face animation and model-based coding applications…”
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3-D motion estimation and wireframe adaptation including photometric effects for model-based coding of facial image sequences Autor Bozdagi, G., Tekalp, A.M., Onural, L.

“…Proposes a novel formulation where 3D global and local motion estimation and the adaptation of a generic wireframe model to a particular speaker are considered…”
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Facial feature localization and adaptation of a generic face model for model-based coding Autor Reinders, M.J.T., van Beek, P.J.L., Sankur, B., van der Lubbe, J.C.A.

“…A method for the adaptation of a generic 3-D face model to an actual face in a head-and-shoulders scene is discussed, with application to video-telephony. The…”
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Learning Local Objective Functions for Robust Face Model Fitting Autor Wimmer, M., Stulp, F., Pietzsch, S., Radig, B.

“…Model-based techniques have proven to be successful in interpreting the large amount of information contained in images. Associated fitting algorithms search…”
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Multi-view coding for image-based rendering using 3-D scene geometry Autor Magnor, M., Ramanathan, P., Girod, B.

“…To store and transmit the large amount of image data necessary for Image-based Rendering (IBR), efficient coding schemes are required. This paper presents two…”
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Real-time estimation of long-term 3-D motion parameters for SNHC face animation and model-based coding applications: Synthetic/Natural Hybrid Video coding Autor SMOLIC, A, MAKAI, B, SIKORA, T

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A Similarity Metric for Retrieval of Compressed Objects: Application for Mining Satellite Image Time Series Autor Gueguen, L., Datcu, M.

“…This paper addresses the problem of building an index of compressed object databases. We introduce an informational similarity measure based on the coding…”
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Tracking of the motion of important facial features in model-based coding Autor Antoszczyszyn, Paul M, Hannah, John M, Grant, Peter M

“…A new method of tracking the position of important facial features for semantic wire-frame-based moving-image coding is presented. Reliable and fast tracking…”
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Tracking of the motion of important facial features in model-based coding: Video sequence segmentation for content-based processing and manipulation Autor ANTOSZCZYSZYN, P. M, HANNAH, J. M, GRANT, P. M

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Lightness determination at curved surfaces with applications to dynamic range compression and model-based coding of facial images Autor Blohm, W.

“…Lightness algorithms, which have been proposed as a model for human vision, are aimed at recovering surface reflectance in a close approximation. They attempt…”
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Triangular segmentation criterion for DT mesh based video coding Autor GUO Da-bo1, LU Zhao-yang1, JIAO Wei-dong1, HU Xing-xing1

“… in video sequence with complex motion and background. The restriction that mesh model based coding was only applicable in video conference applications was broken…”
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An Active Model for Facial Feature Tracking Autor Ahlberg, Jörgen

“…We present a system for finding and tracking a face and extract global and local animation parameters from a video sequence. The system uses an initial colour…”
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