Coding scheme for a data stream representing a temporally varying graphics model

A graphic model and data flow technology, applied in image coding, image data processing, image communication, etc., can solve the problems of data time redundancy and inability to convert to

Active Publication Date: 2007-10-24
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of such animation models is that they cannot be translated to the general case, i.e. they are limited to special motion sequences and/or special objects, such as faces, etc.
If no animation model exists, then at each moment will have to pass

Method used

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  • Coding scheme for a data stream representing a temporally varying graphics model
  • Coding scheme for a data stream representing a temporally varying graphics model
  • Coding scheme for a data stream representing a temporally varying graphics model

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Embodiment Construction

[0032] Fig. 1 shows an encoder for encoding a data stream representing a time-varying graphical model according to an embodiment of the present invention. The encoder is indicated generally at 10 and comprises an input 12 for receiving the data stream to be encoded and an output 14 for outputting the encoded data stream. The encoder 10 internally comprises intra-encoding means 16 connected into an intra-encoding path 18 extending between the input 12 and the first input of the switch 20 . In the inter-encoding path 22, which runs parallel to the intra-encoding path 18, is connected the remaining part 24 of the encoder 10, which represents the inter-encoding part, that is to say in the encoder 10 and in the data stream As will be seen more clearly below, the previous part of the previous part of the previous moment is associated with the encoding of the position of the graphical model with respect to the moment in time, as will be seen more clearly below, in contrast to the int...

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Abstract

To rapidly retrieve and specify a product including a specific component from data on production results, and to output a retrieval result with priority order set in the case that a plurality of candidates are retrieved. In this product data retrieval system, data of a product configuration are produced from data on work results and are stored so as to rapidly specify the product including the specific component, and the rapid retrieval related to the product is performed by use of it. In the case that the plurality of candidates can be specified and cannot be narrowed down to one candidate, strong/weak data on possibility are imparted by totaling frequency of the possibility to perform the retrieval.

Description

technical field [0001] The present invention relates to the encoding and decoding of a data stream representing a time-varying graphical model, and in particular to the compression of the graphical model data. Background technique [0002] Today, time-varying 3D computer graphics models are widely used in the field of classical computer graphics. For example, 3D computer graphics models are used in games, virtual worlds, animation, etc., but also in the latest systems called Free Viewpoint Video (FVV) or 3D Video Objects (3DVO). [0003] A 3D computer graphics model describes the surface of a 3D object in a virtual 3D coordinate system. For this, the 3D coordinates (x, y, z) of a certain number of control points or vertices lying on or arranged along the surface are defined. Continuous surfaces are defined by different parameterization methods. For example in a parametric method known as polygon mesh, the shape of the surface of a 3D object is defined by polygons, where t...

Claims

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Application Information

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IPC IPC(8): G06T9/00H04N7/36G06T13/20
CPCG06T9/001H04N19/00763H04N19/00587H04N7/26106H04N19/00121H04N19/00545H04N19/46H04N19/51H04N19/13H04N19/593G06T13/20G06T9/00
Inventor 马蒂亚斯·考茨纳卡斯滕·米勒阿廖沙·斯莫利奇托马斯·威甘德
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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