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A test calibration and deviation correction method for an augmented reality display device

A display device and augmented reality technology, applied in image analysis, instrumentation, computing, etc.

Active Publication Date: 2021-02-05
BEIJING LLVISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the test calibration of the two is still a blank in the industry

Method used

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  • A test calibration and deviation correction method for an augmented reality display device
  • A test calibration and deviation correction method for an augmented reality display device
  • A test calibration and deviation correction method for an augmented reality display device

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Embodiment Construction

[0043] see below Figure 1 to Figure 7 The test calibration and deviation correction method of the augmented reality display device described in the present invention will be described in detail.

[0044] figure 1 Shown is a flowchart of the present invention, comprising the following steps:

[0045] S101: Align the test camera with the display module of the augmented reality display device.

[0046] combine figure 2 As shown, the augmented reality display device includes a display module 202 and a scene acquisition camera 203 . When using the method of the present application for test calibration, it is necessary to set up a test camera 201 facing the display module 202 . A specific fixing method for erection may be, for example, a fixing bracket (not shown), which is not limited here.

[0047] In addition, an environmental target 204 set in a real scene is also included. combine image 3 As shown, the environmental target 204 is a two-dimensional plane with coordinat...

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Abstract

The present invention provides a test calibration and deviation correction method for an augmented reality display device, comprising steps: A, setting an environmental target with a position reference function in a real scene; erecting a test camera toward a display module of the augmented reality display device; At a certain distance in the horizontal direction, focus the scene acquisition camera of the augmented reality display device on the environmental target; B, based on the distance described in step A, record that the center of the image captured by the scene acquisition camera is within the environmental target Coordinate M on 场 and based on the distance described in step A, record the coordinates M of the center of the display module acquired by the test camera on the environmental target 显 ; C. Based on the coordinates in step B, calculate the deviation of the horizontal angle and the pitch angle. Obtain the position difference between the camera and the test camera in the same coordinate system based on the scene, and provide accurate data basis for the subsequent adjustment of the deviation through software technology.

Description

technical field [0001] The invention relates to the field of augmented reality technology, in particular to a test calibration and deviation correction method for an augmented reality display device. Background technique [0002] The augmented reality display device needs to accurately superimpose the displayed virtual information on the real scene and output the display. Therefore, scene acquisition perception devices (such as cameras and Simultaneous Localization and Mapping (SLAM, Simultaneous Localization And Mapping)) are required to accurately identify and model real-world scenes. In addition, the coordinate transformation of the virtual information that needs to be added is mapped to the scene superimposition display device, so that it can be superimposed on the real scene and viewed by human eyes. [0003] Since the scene acquisition perception module and the display module of the augmented reality display device are separate devices, there is a deviation in the coo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/246G06T7/80
CPCG06T7/80
Inventor 李勇黄海
Owner BEIJING LLVISION TECH CO LTD