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Monocular distance measuring and positioning method for waveguide display system

A display system and monocular distance measurement technology, which can be used in distance measurement, measurement device, line-of-sight measurement, etc., and can solve problems such as low hardware cost

Inactive Publication Date: 2021-01-29
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Laser ranging is an active ranging method, which has the advantages of high accuracy and strong directionality, but has many limitations such as hardware cost, volume, weight and power consumption; binocular ranging is a passive ranging method, It uses the imaging parallax of two cameras to solve the target ranging, and its hardware cost is low, but it needs to perform binocular positioning and binocular image matching on the two cameras.

Method used

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  • Monocular distance measuring and positioning method for waveguide display system
  • Monocular distance measuring and positioning method for waveguide display system
  • Monocular distance measuring and positioning method for waveguide display system

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Embodiment Construction

[0025] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0026] The experiment uses a fixed-focus camera of 1920×1080. The equivalent pixel focal length of the camera is f=1353.37 pixels. The baseline length from the center of the camera to the center of the waveguide display is B=0.15 meters. The attitude accuracy of the line is 0.1°.

[0027] The method for monocular distance measurement and positioning of the waveguide display system, the specific implementation method adopts the following steps:

[0028] Step 1: Calibrate the optical axes and parameters of the waveguide display system and the monocular camera at the assembly stage in advance, eliminate the display deviation of the waveguide display system and the image distortion of the monocular camera, and ensure that the directions of the optical axes of the two optical systems are consistent;

[0029] Step 2: When performing target ranging and positioning, fir...

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Abstract

The invention relates to a monocular distance measuring and positioning method for a waveguide display system, aims to solve the important problem of target distance measurement and positioning of a head-mounted waveguide display system, and realize the positioning calculation of a target distance through process optimization, image tracking and target imaging parallax detection by utilizing two optical systems of a waveguide display system and a monocular camera. The method has the advantages that on the premise that the system design is not changed, the waveguide display system and the monocular camera are fully utilized, and the positioning calculation of the target distance is achieved through the process optimization, image tracking and target imaging parallax detection. The method has an important reference value for the design and application of the head-mounted waveguide display system.

Description

technical field [0001] The invention belongs to the technical field of optical measurement and positioning, and relates to a method for monocular ranging and positioning of a waveguide display system. Background technique [0002] With the development of artificial intelligence and information interaction technology, augmented reality technology plays an increasingly important role in military, medical, construction, education, engineering, film and television, entertainment and other fields. The head-mounted waveguide display system is a typical representative of the application of augmented reality technology, which consists of a waveguide display system, a monocular camera, pose measurement components and an information processing terminal. The monocular camera is responsible for environment image acquisition, the pose measurement component is responsible for pose measurement, the information processing terminal analyzes and processes the image and extracts valuable targe...

Claims

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Application Information

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IPC IPC(8): G01C3/24G01C11/02G01C11/04
CPCG01C3/24G01C11/02G01C11/04
Inventor 刘明
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC