Efficient image rendering method based on modeling

An image-efficient technique for modeling-based image-efficient rendering

Active Publication Date: 2013-10-09
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

However, there are still many problems in texture seam ...

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  • Efficient image rendering method based on modeling
  • Efficient image rendering method based on modeling
  • Efficient image rendering method based on modeling

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Embodiment Construction

[0060] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0061] In order to realize the purpose of the present invention, a kind of efficient implementation method of image rendering algorithm based on modeling comprises the following steps:

[0062] Step (1), using the triangular face ring of the vertex as the sampling unit, calculate the visible viewpoint list of each vertex of the mesh model, and generate the reference sampling matrix of each vertex by projecting the triangular face ring of the vertex into each visible viewpoint image.

[0063] Step 11), sampling unit. In the image renderi...

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Abstract

The invention provides an efficient image rendering method based on modeling. With the method, a target image under free points view points can be generated. A light field model is adopted for recording surface information of a target; on the premise that that a three-dimensional grid model of the target and an appropriate amount of view point surrounding images of the target, through determining of a visible view point list of every vertex, the view points under which sampling is performed are determined; a triangular face ring of every vertex is selected as a sampling unit, virtual view points are generated with the triangulation method, and sampling information under the virtual view points is generated according to weight interpolations; sampling matrixes of all the vertexes are compressed with a matrix decomposition and compression method to facilitate transmission of the sampling information; in order to generate the target under the free view points, the three-dimensional grid model just needs to be projected to a screen coordinate system of new view points, and then a view under the new view points can be generated through reading of the sampling information. The method not only considers the problem of handling of a lapped seam phenomenon in texture mapping, but also reduces storage space for texture information and simplifies the rendering process.

Description

technical field [0001] The present invention relates to technical fields such as multi-view video, 3D video, 3D object rendering, virtual roaming, etc. Specifically, the present invention relates to a method for efficiently rendering images based on modeling. Background technique [0002] Three-dimensional video technology has broad prospects for development in the fields of digital television, virtual reality systems, 3D games, distance education and monitoring, long-distance domestic industrial control, and three-dimensional video conferencing systems. Compared with traditional two-dimensional video, three-dimensional video allows users to freely switch angles of view. In addition, it also makes users feel "immersive". This is a highly interactive medium. In recent years, with more and more people favoring virtual reality systems, 3D video technology has become a research hotspot in the field of computer vision. [0003] The key of 3D video technology lies in the 3D rende...

Claims

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Application Information

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IPC IPC(8): G06T15/00G06T15/04
Inventor 郭立于昊刘皓刘鹏王成彰
Owner UNIV OF SCI & TECH OF CHINA
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