An optical positioning and tracking system and method based on invisible combined road signs
An optical positioning and tracking system technology, applied in the field of optical positioning and tracking systems, can solve the problems of high price, small capture range, and difficult deployment, and achieve the effects of low delay, large tracking range, and low price
Active Publication Date: 2020-07-03
NAT SPACE SCI CENT CAS
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Problems solved by technology
In Augmented Reality, Virtual Models Are Inaccurately Registered With The Real World
In virtual reality, it is impossible to realize the relationship between the user's position and posture in the real world and the virtual world, and it is easy to cause dizziness
A stable positioning tracking system is the key technology to solve these problems. At present, the tracking system in virtual reality and augmented reality equipment still has the problem of small capture range, and the large-scale tracking system mostly adopts the Outside-in method, which is expensive , difficult to deploy
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[0029] In order to make the description of the present invention more detailed and complete, the following provides an illustrative description of the implementation modes and specific examples of the present invention: but this is not the only way to implement or use the specific embodiments of the present invention. In the following description, numerous specific details will be set forth in order to enable readers to fully understand the following embodiments. However, embodiments of the invention may be practiced without these specific details.
[0030] figure 1 It is a block diagram of an optical positioning and tracking system based on invisible composite road signs. It includes a combined landmark module 1 deployed in the environment, an image acquisition module 2 deployed on the object to be tracked, and an image processing module 3 connected to the image acquisition module 2 .
[0031] like figure 2 As shown, the combined road sign module 1 includes visible light ...
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The invention provides an optical positioning tracking system based on a stealth combination road sign and a method thereof. The combination road sign is formed by an infrared mark and a visible light mark. The infrared mark adopts a regression reflection material. The visible light mark adopts a multistable material. A color of the combination road sign is changed into a color of an object which the combination road sign is attached to so that a stealth function is realized. An image acquisition module can acquire an infrared image and a visible light image. An image processing module is used for carrying out corresponding decoding on the image. According to a positioning tracking method, attitude information of six degrees of freedom of the image acquisition module in a space is calculated. The optical positioning tracking system and the method thereof possess advantages that a tracking range is large; time delay is low; a price is low; deployment is easy; and a beautiful environment is not influenced.
Description
technical field [0001] The invention relates to the technical field of optical positioning, in particular to an optical positioning tracking system and method in virtual reality and augmented reality. Background technique [0002] The design of artificial road signs is mainly considered from three aspects: accuracy, real-time performance and scalability in large complex environments. In the past road marking schemes, black and white two-dimensional barcodes or circular codes were mostly used as road marking patterns. Although these solutions have a certain degree of scalability, they are greatly affected by noise and shooting angles, the decoding speed is slow, and the aesthetics of the environment is affected. Therefore, considering the design requirements of artificial road signs and various road marking schemes that have been proposed, an invisible combined road marking based on visible light marking and infrared marking is designed. [0003] Augmented reality technology...
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IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 郑晓萌
Owner NAT SPACE SCI CENT CAS