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System and method for calibrating distributed network cameras using moving robots

A network camera and distributed network technology, applied in the direction of two-dimensional position/channel control, etc., can solve the problems of lack of positioning and navigation capabilities, increase in the number of network cameras, and cumbersome calibration methods, and achieve fast and convenient calibration, which is conducive to expansion , Set up flexible effects

Inactive Publication Date: 2018-12-07
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

This kind of calibration method is cumbersome, and because the robot itself does not have the positioning and navigation capabilities in this type of system, it needs to have an overlapping field of view between adjacent cameras, so there must be a spatial constraint relationship between adjacent network cameras, so that the distributed The number of network cameras in the monitoring system has greatly increased, which further leads to poor practicability for robots to obtain global environmental information through distributed network cameras

Method used

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  • System and method for calibrating distributed network cameras using moving robots
  • System and method for calibrating distributed network cameras using moving robots
  • System and method for calibrating distributed network cameras using moving robots

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Embodiment Construction

[0034] The technical problems solved by the embodiments of the present invention, the technical solutions adopted and the technical effects achieved are clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in the present application, all other equivalent or obviously modified embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the invention can be embodied in many different ways as defined and covered by the claims.

[0035] It should be noted that, in the following description, many specific details are given for the convenience of understanding. It may be evident, however, that the present invention may be practiced without these specific details.

[0036] It should be noted tha...

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Abstract

The invention discloses a system for calibrating a distributed network camera by use of a travelling robot, and correlation methods. The system comprises the robot for establishing an environment map; and an artificial sign is arranged at the top of the robot. A server is in communicating connection with the robot and the network camera, for obtaining images of the network camera and rectifying the images by use of parameters in the network camera; coordinates of an artificial sign center in a network camera image coordinate system are also determined in the rectified images; and according to coordinates of a robot center in a robot map coordinate system and the coordinates of the artificial sign center in the image coordinate system, a conversion relation between the image coordinate system and the map coordinate system is resolved, and the distributed network camera is calibrated according to the conversion relation. The system and methods provided by the embodiments of the invention have the advantages of high system integration, high expansibility, fast calibration mode and the like, and can directly establish the conversion relation between the image coordinate system and the map coordinate system.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of robots, in particular to a system and a related method for calibrating distributed network cameras with a moving robot. Background technique [0002] With the development of robot technology, especially autonomous positioning and navigation robot technology, robots can already serve human beings by autonomously avoiding obstacles and navigating in the natural environment. Most of the existing service robots obtain environmental information through sensors such as laser sensors and odometers to complete robot positioning, obstacle avoidance and navigation. However, limited by the measurement range of the robot sensor, the robot can only perceive local environmental information and make corresponding path planning. Since the robot cannot detect the global environment information, the path and task planning made by the robot based on the local environment information does not have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/02
CPCG05D1/02
Inventor 温丰贺一家原魁郭跃
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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