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Method for drawing viewpoints by reinforcing interested region

A technology of region of interest and viewpoint, applied in the field of viewpoint rendering, can solve the problem of difficulty in calculating accurate geometric information, achieve the effect of good reconstruction quality, easy application and realization, and reduce computational complexity

Active Publication Date: 2010-11-10
SHANGHAI UNIV
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AI Technical Summary

Problems solved by technology

Some researchers also reduce the time required for calculation by simplifying the geometric model, but in practice it is found that the calculation of accurate geometric information is very difficult

Method used

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  • Method for drawing viewpoints by reinforcing interested region
  • Method for drawing viewpoints by reinforcing interested region
  • Method for drawing viewpoints by reinforcing interested region

Examples

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Embodiment Construction

[0022] An implementation example of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0023] The specific steps of the viewpoint rendering method for this region of interest enhancement are as follows: figure 1 The flow chart is shown. For the actual scene, the experiment is carried out through the camera acquisition and display system. Figure 7 shows the viewpoint reconstruction results.

[0024] see figure 1 , whose steps are:

[0025] (1) Establish a camera geometric model: establish a camera geometric model for the acquisition system parameters and scene information, and determine each camera around the virtual camera according to the geometric model of the light field camera;

[0026] (2) Calculate the initial disparity map, analyze and detect the region of interest: get the nearest camera image according to the camera geometric model, obtain the initial disparity map through the block matching algorithm at the encoding...

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Abstract

The invention aims to provide a method for drawing viewpoints by reinforcing an interested region, comprising the following steps of: aiming at the collection mode of a light field camera, firstly establishing the camera geometrical model of the collection mode of the light field camera according to the parameters of a collection system and the geometrical information of a scene, then calculatingthe interested region and reinforcing the original thin depth map through the identified interested region; and then carrying out light field drawing by utilizing the reinforced depth map according to camera parameters and a geometrical scene to obtain a new viewpoint image. The test on the method indicates that the invention can obtain favorable viewpoint reestablishing quality.

Description

technical field [0001] The present invention relates to a viewpoint rendering method, in particular to a new viewpoint rendering method based on the enhancement of the region of interest. Background technique [0002] The 3D TV system has attracted more and more attention because of its unique stereoscopic, immersive and roaming characteristics. However, multi-view video has been widely used in 3D TV systems, so the rendering technology based on multi-view video has also received more and more attention. According to the geometric quantity used in the rendering technology, it can be divided into three categories: those without geometric information Representation; representation with implicit geometric information; representation with explicit geometric information. The most famous of these is light field rendering, which produces high-quality images at virtual viewpoints because it does not use any geometric information. The sampling theorem shows that if we have more sce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G06T7/00
Inventor 安平张倩张兆杨
Owner SHANGHAI UNIV
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