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Location information acquisition device, location information acquisition method, recording medium, and location information acquisition system

A position information and device acquisition technology, which is applied in camera devices, image analysis, image enhancement, etc., can solve problems such as three-dimensional position reliability deviation

Active Publication Date: 2022-06-07
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the technology of the above-mentioned patent documents, it is easy to be affected by the optical characteristics of the camera, small positional deviations of the markers, etc., and thus there may be deviations in the reliability of determining the three-dimensional position.

Method used

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  • Location information acquisition device, location information acquisition method, recording medium, and location information acquisition system
  • Location information acquisition device, location information acquisition method, recording medium, and location information acquisition system
  • Location information acquisition device, location information acquisition method, recording medium, and location information acquisition system

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Embodiment Construction

[0025] Hereinafter, a visible light communication system as a position information acquisition system according to an embodiment of the present invention will be described with reference to the drawings.

[0026] figure 1 It is a figure which shows the structure of a visible light communication system. like figure 1 As shown, the visible light communication system 1 includes devices 100a, 100b, and 100c (hereinafter referred to as "devices 100" when the devices 100a, 100b, and 100c are not limited, respectively) and a position information acquisition device, which are installed in the space 500. The corresponding server 200 is configured.

[0027] The second marker 102a is attached to the device 100a, the second marker 102b is attached to the device 100b, and the second marker 102c is attached to the device 100c (hereinafter, the second markers 102a, 102b, 102c are appropriately referred to as "Second marker 102"). The server 200 is equipped with cameras 201a, 201b, 201c, ...

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Abstract

For each camera pair, the server (200) obtains the setting of the second marker (102a) and the like for the second marker (102a) and the like captured by both cameras (201a) and the like included in the camera pair. Reliability information related to the calculation of the position. Furthermore, the server (200) calculates the installation position of the second marker (102a) etc. based on the image captured by the camera pair. At this time, when the installation position of the second marker (102a) etc. can be calculated for each camera pair by imaging the second marker (102a) etc. by a plurality of camera pairs, the server (200) selects the second marker (102a) and the like. The camera pair with the highest reliability information of the marker (102a) etc. calculates the installation position of the second marker (102a) etc. based on the image captured by the camera pair.

Description

[0001] Regarding this application, priority is claimed based on Japanese Patent Application No. 2018-224457 filed on November 30, 2018 and Japanese Patent Application No. 2019-105599 filed on June 5, 2019, and the contents of these basic applications are all claimed. incorporated into this application. technical field [0002] The present invention relates to a positional information acquisition device, a positional information acquisition method, a recording medium, and a positional information acquisition system. Background technique [0003] As described in International Publication No. 2005 / 124687, a technique is known in which a plurality of cameras image a marker and specify the three-dimensional position thereof. [0004] However, the technique of the above-mentioned patent document is easily affected by the optical characteristics of the camera, the small position deviation of the marker, and the like, and the reliability of the determination of the three-dimensional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/02G01C11/04
CPCG01C11/02G01C11/04G06T2207/10021G06T7/73G06T2207/30204G06T2207/10024G06T2207/30244G06T2207/10016
Inventor 宫本直知
Owner CASIO COMPUTER CO LTD