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A reality augmenting method having image superposition and image special effect functions

An augmented reality and image technology, applied in the field of computer vision, can solve the problems of augmented reality without image overlay and image special effect technology, and achieve the effect of improving effect, enriching means, and strong applicability

Inactive Publication Date: 2015-10-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0026] However, techniques in image overlay and image special effects have not been applied to augmented reality yet

Method used

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  • A reality augmenting method having image superposition and image special effect functions
  • A reality augmenting method having image superposition and image special effect functions
  • A reality augmenting method having image superposition and image special effect functions

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Embodiment 1

[0078] In this embodiment, an image is selected to verify the method of the embodiment of the present invention, and the corresponding experimental results are as follows Figure 4 shown. Among them, a beach scene graph is used as the original template image, for example Figure 4 (a) shown. Use an image of a little girl as the image to be superimposed, for example Figure 4 (c) shown. And remove the background part of the image to be superimposed in advance, and only keep the foreground part, for example Figure 4 (d) shown. At the same time, a 3D virtual model of a speedboat is used as the virtual model to be superimposed, for example Figure 4 (b) shown. Figure 4 (e) is a schematic diagram of the effect of superimposing the image to be superimposed on the template image, Figure 4 (f) is a schematic diagram of the effect of simultaneously superimposing the image to be superimposed and the three-dimensional virtual model on the template image.

Embodiment 2

[0080] In this embodiment, the method of the embodiment of the present invention is verified by using the template image of flowers and the template image of lake water respectively, and the corresponding experimental results are as follows Figure 5 shown. in, Figure 5 (a) and Figure 5 (b) are two template images used in the experiment, where Figure 5 (a) is a scene graph of a piece of flowers, that is, a flower template image, Figure 5 (b) is a scene graph of a lake, that is, a lake template scene graph. Figure 5 (c) is a schematic diagram of the effect obtained by superimposing the little girl on the flower template image. Figure 5 (d) is a schematic diagram of the effect obtained by superimposing the speedboat model on the lake template image.

Embodiment 3

[0082] In this embodiment, the method of the embodiment of the present invention is verified by using the template image of flowers, and the corresponding experimental results are as follows Image 6 shown. in, Image 6 (a) is a scene graph of a piece of flowers, that is, a flower template image, Image 6 (b) is the effect diagram of convex lens transformation on the template image, Image 6 (c) is the effect diagram of concave lens transformation on the template image, Image 6 (d) is the effect diagram of zooming radial blur transformation on the template image, Image 6 (e) is the effect diagram of rotating and radially blurring the template image.

[0083] Through the above-mentioned embodiments, it is proved that the method of the embodiment of the present invention can perform image superposition, image special effects and augmented reality of 3D models on the template image, and can freely select the augmentation method, that is, enrich and expand the expression for...

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Abstract

The invention provides a reality augmenting method having image superposition and image special effect functions. The method comprises the following steps: carrying out real-time three-dimensional tracking on a template image to obtain camera pose; projecting the template image to a screen according to the camera pose to obtain a template image projection area on the screen, wherein the template image projection area is a target position of an image to be superposed after being turned over; obtaining a flip matrix of the image to be superposed in the template image projection area on the screen according to the original position of the image to be superposed and the target position of the image to be superposed after being turned over; turning over the image to be superposed according to the flip matrix; superposing the image to be superposed after being turned over to the template image; carrying out selected special effect conversion on the screen image; and superposing a predetermined three-dimensional virtual model to the template image to realize augmented reality of the template image. The method expands the range of augmented reality and improves effect of the augmented reality; and the method is high in flexibility and high in applicability.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to an augmented reality method with image superposition and image special effect functions. Background technique [0002] In traditional augmented reality applications, the way to augment the template image is to superimpose one or more three-dimensional virtual objects on the two-dimensional template image. In some augmented reality applications, some text, audio and video will be displayed after the template image is successfully recognized. The message describes the recognized scene. [0003] Image superposition is a research direction in the field of image processing. Its basic working principle is to superimpose each pixel in the two images according to the transparency, that is, for each pixel in the two images, assume that the pixel color is i 1 , i 2 . Both define the transparency α and β of the pixel in the two images. Generally, the condition α+β=1 is satisfie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T7/00
Inventor 孙延奎赵奇可
Owner TSINGHUA UNIV
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