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Method and system of acquiring vehicle shooting and monitoring area

A technology of monitoring area and acquisition method, applied in image enhancement, image analysis, image data processing and other directions, can solve the problems of mosaic, reducing image quality, reducing monitoring reliability, etc.

Active Publication Date: 2017-07-28
陕西雷神智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, video compression will reduce the image quality, and sometimes there will be some mosaic phenomenon after decoding, which reduces the monitoring reliability

Method used

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  • Method and system of acquiring vehicle shooting and monitoring area
  • Method and system of acquiring vehicle shooting and monitoring area
  • Method and system of acquiring vehicle shooting and monitoring area

Examples

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Embodiment Construction

[0024] In one embodiment, a method for acquiring a camera monitoring area of ​​a vehicle, the vehicle may be an unmanned vehicle or a manned vehicle. like figure 1 As shown, the method includes the following steps:

[0025] Step S110: Obtain the internal parameter matrix of the camera installed on the vehicle, as well as the transformation matrix and translation matrix from the vehicle's ground projected coordinate system to the image coordinate system.

[0026] Calibrate the camera installed on the vehicle to obtain the internal parameter matrix A of the camera and the projected coordinate system O of the vehicle ground c x c Y c to the image coordinate system O p x p Y p The transformation matrix R cp and translation matrix t cp , used for subsequent coordinate transformation. The internal parameter matrix is ​​the characteristic parameter of the camera, which represents the proportional relationship between the actual size of the object and the size in the picture....

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Abstract

The invention relates to method and system of acquiring a vehicle shooting and monitoring area. The method of acquiring a vehicle shooting and monitoring area includes the steps: acquiring an intrinsic parameter matrix of a camera, and a transition matrix and a translation matrix from a vehicle ground projection coordinate system to an image coordinate system; according to the vehicle data information and the preset time, performing vehicle track prediction to obtain the predicted driving distance; according to the predicted driving distance, determining the coordinate of the preset reference point of the vehicle in the vehicle ground projection coordinate system after the vehicle is driven for the preset driving distance; according to the coordinate of the preset reference point of the vehicle in the vehicle ground projection coordinate system, the intrinsic parameter matrix, the transition matrix and the translation matrix, determining the coordinate of the preset reference point in the image coordinate system; and according to the coordinate of the preset reference point in the image coordinate system, acquiring the vehicle shooting and monitoring area. The method and system of acquiring a vehicle shooting and monitoring area can realize accurate monitoring of vehicle driving only by acquiring the video data of the camera corresponding to the monitoring area, do not need compress the video data, and can improve the monitoring reliability while reducing the communication load.

Description

technical field [0001] The invention relates to the technical field of vehicle monitoring, in particular to a method and system for acquiring a vehicle camera monitoring area. Background technique [0002] At present, cameras are installed on both manned and unmanned vehicles to monitor the scene around the vehicle body for vehicle driving. Especially on unmanned vehicles or remote control vehicles, in order to provide rich information to remote operators, a large number of cameras are often installed on the vehicle. The transmission of a large amount of camera data will bring a great load to the communication system. When displaying, it is hoped to have as detailed video data as possible, and the ideal situation is to transmit all video data to the operator. [0003] However, in the process of video transmission, the bandwidth requirement of the communication system is very high, especially the wireless communication system. In order to reduce the communication load in t...

Claims

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Application Information

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IPC IPC(8): G06T7/80
CPCG06T2207/30244G06T2207/30252
Inventor 李睿渠军
Owner 陕西雷神智能装备有限公司
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