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Method and equipment for determining target coordinate transformation information

A technology of coordinate transformation and target coordinates, applied in geographic information databases, image data processing, special data processing applications, etc., can solve problems such as inability to determine spatial constraints, lack of spatial computing capabilities, etc., to improve utilization, Improve the degree of association and improve the effect of image utilization

Active Publication Date: 2021-09-03
HISCENE INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary PTZ camera devices have no calibration internal parameters, so they do not have spatial computing capabilities
Moreover, it is difficult for the PTZ camera devices in the city to ensure the overlap of the field of view, so the spatial constraint relationship between multiple camera devices cannot be determined by itself.

Method used

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  • Method and equipment for determining target coordinate transformation information
  • Method and equipment for determining target coordinate transformation information
  • Method and equipment for determining target coordinate transformation information

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Embodiment Construction

[0023] The application will be described in further detail below in conjunction with the accompanying drawings.

[0024] In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party all include one or more processors (for example, a central processing unit (Central Processing Unit, CPU)), an input / output interface, a network interface and Memory.

[0025] Memory may include non-permanent memory in computer-readable media, random access memory (Random Access Memory, RAM) and / or non-volatile memory, such as read-only memory (Read Only Memory, ROM) or flash memory (Flash Memory). Memory is an example of computer readable media.

[0026] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. ...

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Abstract

The invention aims to provide a method and equipment for determining target coordinate transformation information. The method specifically comprises the following steps: acquiring real-time bearing state information of a target PTZ (Pan / Tilt / Zoom) camera shooting a corresponding target object; obtaining an internal reference and target mapping parameter information corresponding to the target PTZ camera device, determining coordinate transformation information corresponding to the target PTZ camera device according to the real-time bearing state information and the corresponding target mapping parameter information, and determining corresponding first coordinate transformation information according to the coordinate transformation information and the internal reference; and determining corresponding target coordinate transformation information according to the first coordinate transformation information and second coordinate transformation information from the geographic coordinate system to the world coordinate system. According to the method and the device, coordinate transformation of the image frame and the electronic map in the PTZ camera device can be realized, so that data linkage of the GIS information in the electronic map and the shot image frame is completed, and the image utilization rate of the PTZ camera device is improved.

Description

technical field [0001] The present application relates to the communication field, and in particular to a method and device for determining target coordinate transformation information. Background technique [0002] PTZ camera device refers to a surveillance camera with a PTZ control pan / tilt. PTZ is the abbreviation of Pan / Tilt / Zoom. The middle of the surveillance camera refers to the three dimensions of pan / tilt control: left and right rotation, up and down pitch, and zoom. Most of the current urban management systems rely on multi-channel monitoring networks or video images of drone cruises and ground duty personnel to monitor key areas of the city. Traditional surveillance cameras only have image acquisition and basic PTZ pan / tilt control functions, and are independent of each other, while UAVs have short battery life and can cover a small space and time period. Ordinary PTZ camera devices have no calibration internal parameters, so they do not have spatial computing ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80G06F16/29
CPCG06T7/80G06F16/29G06T2207/10016
Inventor 刘理想周俊颖侯晓辉
Owner HISCENE INFORMATION TECH CO LTD
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