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Method recovering texture and illumination of calibration plate sheltered area

A technology of occlusion area and calibration plate, which is applied in the field of image processing, can solve the problems of inaccurate restoration of texture and smoothness, etc., and achieve the effect of visual continuity, no light difference, and real texture

Inactive Publication Date: 2013-05-08
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the high-resolution images in this method use traditional image inpainting algorithms, resulting in inaccurate and smooth restored textures

Method used

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  • Method recovering texture and illumination of calibration plate sheltered area
  • Method recovering texture and illumination of calibration plate sheltered area

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Experimental program
Comparison scheme
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specific Embodiment approach

[0038] refer to figure 1 , the specific embodiments of the present invention are as follows:

[0039] Step 1, take a reference image and a calibration benchmark image:

[0040] Fix the position of the camera, select the scene where the virtual object needs to be added, and take an image of the scene before the calibration plate is placed as a reference image. The image contains the complete texture information of the scene, which is used to repair the area blocked by the calibration plate, figure 2 (a) is the captured reference image. exist figure 2 In all images in , the calibration plate is placed on a wood-grain tabletop commonly used in augmented reality systems.

[0041]Place the calibration plate in the scene, and take an image with the calibration plate as the calibration reference image, which is used for the calibration of the images to be processed at all subsequent moments. figure 2 (b) is the calibration reference image taken.

[0042] Step 2, establish pl...

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Abstract

The invention discloses a method recovering texture and illumination of a calibration plate sheltered area. The method recovering the texture and the illumination of the calibration plate sheltered area includes a first step of shooting a reference image and a calibration reference image, a second step of establishing a plane homography relation, a third step of repairing texture, a fourth step of repairing the illumination, a fifth step of judging whether video shoot is finished or not by means of a method of man-machine interaction, executing a sixth step, returning to the second step when the video shoot is not finished, and the sixth step of finishing the process of recovering the texture and the illumination of the calibration plate sheltered area. The method recovering the texture and the illumination of the calibration plate sheltered area has the advantages of being accurate and rapid in recovering result, high in robustness and appropriate for various applications augmenting reality.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to a method for recovering the texture and illumination of the occluded area of ​​a calibration plate by using video image processing technology and computer vision technology. The invention can be used for traceless removal of the calibration board in the augmented reality video system based on the calibration board. Background technique [0002] Augmented Reality (AR, Augmented Reality) is an important branch of virtual reality technology, which integrates virtual objects with the real environment in the output video, making users visually convinced that the virtual objects are part of the real environment. A key technology of augmented reality technology is real-time registration. Usually, a calibration board can be used to determine the position of virtual objects in the real scene. This method has high accuracy and strong robustness. However, usually the color contrast ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 姜光顾晨丁瑜祯
Owner XIDIAN UNIV
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