Method and device for positioning object

A target positioning and target object technology, which is applied in the field of target positioning methods and devices, can solve the problems of low map accuracy, large two-dimensional matching positioning error, and inability to provide pose information for robots, so as to reduce computational complexity and improve positioning The effect of precision

Active Publication Date: 2016-08-10
HUNAN VISUALTOURING INFORMATION TECH CO LTD
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Problems solved by technology

[0003] GPS positioning error is relatively large, and it is susceptible to electromagnetic interference; navigation landmark positioning needs to establish navigation landmarks to change the existing environment, which is time-consuming and laborious; existing map matching algorithms need to manually create environmental maps or self-created maps are not accurate enough to form a closed loop, etc. ; while odometer, inertial navigation system and other long-term or large-scale accumulative errors are large, and the posi

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  • Method and device for positioning object
  • Method and device for positioning object

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[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] like figure 1 As shown, it is a schematic diagram of the application scene of the target positioning method and device provided by the preferred embodiment of the present invention, and the image acquisition device 101 is coupled with one or more processing terminals 102 through a network. The image acquisition device 101 may be a camera capable of acquiring images of the scene where the target object is located. The processing terminal 102 may be a pers...

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Abstract

The invention provides a method and device for positioning an object, relating to the image processing field. The method comprises steps of obtaining a global three-dimensional image of an object in a current scene and a local three-dimensional image of the object in a local scene, converting the global three-dimensional image to a global two-dimensional image, converting the local three-dimensional image to a local two-dimensional image, finding a graph constituted by all straight line segments inside the global two-dimensional image, wherein the matching degree of the line segments inside the global two-dimensional image and a plurality of line segments inside the local two-dimensional image satisfies a preset standard, and determining the position of the object in the global three-dimensional image according to the positions of the three-dimensional image corresponding to the found graph and the global three-dimensional image and the position of the object in the local two-dimensional image. Compared with other positioning methods, the object positioning method of the invention does not need any wireless signal transmitter, improves the positioning accuracy, reduces the calculation complexity and improves the independence.

Description

technical field [0001] The present invention relates to the field of image processing, and in particular, to a target positioning method and device. Background technique [0002] Robot positioning refers to the real-time determination of the position and posture of the robot itself in the environment. Robot autonomous positioning belongs to the field of robot intelligent control devices, and is the foundation and key technology in the process of autonomous navigation of mobile robots. At present, the more common robot positioning technology is mainly based on the prior environmental information, combined with the current robot position information and the information obtained by the sensor to determine the robot pose state. Positioning technology is mainly divided into absolute positioning and relative positioning; absolute positioning is commonly used for satellite GPS positioning, navigation landmarks, map matching, etc. Relative positioning determines the current pose st...

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Application Information

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IPC IPC(8): G06T7/00G06T3/00
CPCG06T3/0031G06T2207/10004G06T2207/30108
Inventor 马燕新李洪
Owner HUNAN VISUALTOURING INFORMATION TECH CO LTD
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