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An information labeling method having high fusion degree and oriented to city augmented reality

An augmented reality and fusion technology, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as relying on wearable devices, and achieve the effect of clear and easy-to-understand augmented reality prompts

Active Publication Date: 2014-12-03
ZHEJIANG UNIV
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Problems solved by technology

However, most of the existing presentation methods need to rely on wearable devices and markers

Method used

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  • An information labeling method having high fusion degree and oriented to city augmented reality
  • An information labeling method having high fusion degree and oriented to city augmented reality
  • An information labeling method having high fusion degree and oriented to city augmented reality

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] like figure 1 As shown, the present invention is a high-fusion information labeling method for urban augmented reality, comprising the following steps:

[0040] (1) Establish a virtual-real fusion scene: use the camera equipment to shoot the video stream of the real scene of the urban building that needs to be processed, and extract the set of 3D sparse feature points from the video stream that records the real scene of the urban building. The position of the 3D sparse feature point is the real scene The position of the world coordinate system, with the help of 3D digital content creation tools, such as Maya, 3DMax, etc. to establish a real 3D model, use the real 3D model and a set of 3D sparse feature points to describe the real scene at the same time; get both world coordinates and building shape structure A virtual-real fusion scene; the construction of th...

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Abstract

The invention discloses an information labeling method having high fusion degree and oriented to city augmented reality. The method comprises four steps of establishing a virtual-real fusion scene, generating an information attachment plane, multi-information labeling, and executing scene semantic organization. According to the invention, prompt information is transferred from a screen space to a three-dimensional scene space, a scene structure suited as an information carrier is extracted through analyzing the scene, and the prompt information is associated with the scene structure, finally realizing high fusion of the prompt information and the scene, and achieving the objective of enabling the augmented reality prompt for the city scene to be clearer and easy to understand.

Description

technical field [0001] The invention relates to the field of computer graphics, in particular to a high-fusion information labeling method for urban augmented reality. Background technique [0002] Superimposing virtual prompt information for real scenes is one of the core contents of augmented reality. Prompt information usually refers to the relevant attributes of a specific object in the scene, such as name, characteristics, usage, etc., which are further described using media such as text and images. Superimposing the prompt information on the real scene can effectively assist the user to understand the scene. In order to realize the superposition of prompt information, the information annotation must first be completed. The process of registering virtual information on real objects is called information annotation. Information annotation is a necessary preliminary work for the superimposition and presentation of reminder information. Only by pre-labeling information ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
Inventor 葛林庄晓斌万华根华炜
Owner ZHEJIANG UNIV
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