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Positioning method, visual map generation method and device

A positioning method and visual technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of high positioning operation cost, poor positioning effect, and difficult deployment and landing.

Active Publication Date: 2022-04-01
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in related technologies, when positioning a scene with high texture repeatability, the positioning effect is not good, the construction of the visual map is easily affected by various environmental factors, the positioning operation cost is high, and it is difficult to deploy and land

Method used

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  • Positioning method, visual map generation method and device
  • Positioning method, visual map generation method and device
  • Positioning method, visual map generation method and device

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Embodiment Construction

[0030] Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0031] Artificial Intelligence (AI for short) is a technical science that studies and develops theories, methods, technologies and application systems for simulating, extending and expanding human intelligence. At present, AI technology has the advantages of high automation, high precision, and low cost, and has been widely used.

[0032] Computer Vision, also known as...

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Abstract

The invention provides a positioning method, a visual map generation method and a visual map generation device, and relates to the technical fields of computer vision, optical character recognition, intelligent traffic and augmented reality in the technical field of artificial intelligence. According to the specific implementation scheme, a parking space number corresponding to a parking space image is obtained, three-dimensional coordinates and three-dimensional poses of the parking space number in a world coordinate system are obtained according to the parking space number and a visual map, the visual map is generated according to the parking space number, and a first conversion matrix from a camera coordinate system to a parking space number coordinate system is obtained; the parking space number coordinate system is constructed according to the parking space numbers, and the three-dimensional coordinates and the three-dimensional poses of the camera in the world coordinate system are determined according to the first conversion matrix and the three-dimensional coordinates and the three-dimensional poses of the parking space numbers. According to the method, positioning is achieved without excessively depending on visual features, the method is not affected by factors such as environment and texture repeatability, the positioning effect is enhanced, and the method is easy to rapidly deploy and landing and low in later maintenance cost.

Description

technical field [0001] The present disclosure relates to the technical fields of computer vision, optical character recognition, intelligent transportation and augmented reality in the technical field of artificial intelligence, and in particular to a positioning method, a method for generating a visual map and a device thereof. Background technique [0002] At present, positioning plays an increasingly important role in people's daily life. Functions such as driving navigation and finding stores are all realized by positioning technology. Since GPS signals, Bluetooth signals, or WIFI signals are easily affected by the environment, it is difficult to achieve stable positioning when the signal is weak. As a new positioning solution, visual positioning is increasingly favored by people. Widely used in business and other fields, such as sweeping robots that can realize efficient panoramic navigation and VR house inspection systems, etc. Visual positioning technology can be divi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/00G06T7/70G06T17/05G06T19/20
CPCG06T19/003G06T7/70G06T17/05G06T19/20G08G1/14G06V20/586G01C21/005G06V30/10G06V20/63G06T7/80G06T2207/30244G06T19/00G06V20/625G06T3/18G06T7/73G01C21/3811
Inventor 赵晨旭王志昊
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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