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A multi-target outdoor positioning system and positioning method based on video acquisition

A video acquisition and external positioning technology, applied in the field of multi-target outdoor positioning systems, can solve the problems of difficult layout, limited accuracy improvement, poor penetration, and poor anti-interference performance.

Active Publication Date: 2018-04-27
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical means adopted by the former are extremely difficult to layout in an outdoor environment, and the cost is high, and the penetration and anti-interference are poor; limited

Method used

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  • A multi-target outdoor positioning system and positioning method based on video acquisition
  • A multi-target outdoor positioning system and positioning method based on video acquisition
  • A multi-target outdoor positioning system and positioning method based on video acquisition

Examples

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Embodiment 1

[0066] Taking multi-target positioning of tourists in a park as an example, the multi-target outdoor positioning system and positioning method based on video collection of the present invention will be described in detail below. In this embodiment, multiple cameras are used as video acquisition devices, and a smartphone with video image processing, information analysis, and data processing capabilities is used as a pulse wave extraction unit, position calculation unit, and action simulation unit. Data transmission is realized through WIFI in the park.

[0067] With the help of this system, staff can realize multi-target outdoor positioning based on video acquisition through the following five steps:

[0068] (1) Scene layout:

[0069] Arrange cameras in the park and turn on WIFI to enable communication between the cameras and smartphones. When arranging the camera, it should be based on the specific environment of the park, and try to make every position in the park within t...

Embodiment 2

[0088] Taking positioning near an outdoor self-service ATM machine in a community as an example, the multi-target outdoor positioning system and positioning method based on video collection of the present invention, including how to combine it with identity recognition, will be described in detail below. In this embodiment, a single camera is used as the video acquisition device, and a PC with video image processing, information analysis and data processing capabilities is used as the pulse wave extraction unit, position calculation unit and action simulation unit. Data transmission is realized by wire.

[0089] With the help of this system, staff can realize multi-target outdoor positioning based on video acquisition through the following five steps:

[0090] (1) Scene layout:

[0091] Arrange the camera near the outdoor self-service ATM in the community, and connect the data cable to enable communication between the camera and the smartphone. When arranging the camera, it ...

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Abstract

The invention relates to the field of outdoor positioning, in particular to a multi-target outdoor positioning system based on video collection and a corresponding method. The positioning described is three-dimensional space positioning. The multi-targets are one or more living bodies with pulses. The system of the present invention includes four components: a video acquisition unit, a pulse wave extraction unit, a position calculation unit and an action simulation unit. The method of the invention includes five steps of scene layout, video acquisition, pulse wave extraction, position calculation and action simulation. Compared with the traditional outdoor positioning system, the outdoor positioning technology provided by the present invention has high precision, low cost, good real-time performance, and has excellent scalability and portability.

Description

technical field [0001] The invention relates to the field of outdoor positioning, in particular to a multi-target outdoor positioning system based on video collection and a corresponding method. Background technique [0002] In recent years, with the advancement of science and technology, positioning technology has also attracted much attention and developed rapidly. Today, the outdoor positioning technology based on satellite positioning system is very mature and has begun to be widely used, but the accuracy is not ideal. For example, it is difficult to lock the specific position of each person in a crowd, and it is difficult to be widely used in many occasions that require high-precision positioning. In order to improve the accuracy, the existing technology usually senses the position and movement of the object by means of infrared rays and ultrasonic waves on the basis of the satellite positioning system, or through wireless communication means such as Wi-Fi, Bluetooth or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/73A61B5/02
Inventor 孟濬黄吉羊傅幼萍
Owner ZHEJIANG UNIV