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A Surround View System Calibration Device Based on a Flexible Calibration Board

A technology of system calibration and calibration board, which is applied in the field of surround view system calibration devices, can solve problems such as large calibration space, and achieve the effects of high calibration accuracy, accurate calibration results, and wide application range

Active Publication Date: 2017-10-27
DELPHI ELECTRONICS SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in order to accurately calibrate the four cameras of the BEV, the laying of the calibration board needs to cover the entire area of ​​the camera. Since the BEV camera is a wide-angle camera (above 170°), in order to fill the entire image area with the calibration board, it is necessary to place a large scale on the ground. Calibration board (40-60m), correspondingly requires a large calibration space

Method used

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  • A Surround View System Calibration Device Based on a Flexible Calibration Board
  • A Surround View System Calibration Device Based on a Flexible Calibration Board

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Embodiment

[0023] Such as figure 1 Shown, a kind of surround-view system calibration device based on flexible calibration board, described surround-view system includes four cameras installed on the car 1, and described calibration device includes four flexible calibration boards 2 corresponding to the camera one-to-one, Each flexible calibration board 2 is arranged directly below its corresponding camera.

[0024] The flexible calibration plate 2 is arranged on a movable support. The movable bracket includes a left and right moving unit and an up and down moving unit. The size of the calibration board is determined by the ratio of the height from the camera to the ground and the height from the camera to the calibration board. The four flexible calibration plates 2 are of the same size.

[0025] The design and calibration process for the up / down movement of the movable support:

[0026] Step 1: Drive the vehicle to the calibration position;

[0027] Step 2: Move the calibration boa...

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Abstract

The invention relates to an all-round looking system calibration device based on a flexible calibration plate. An all-round looking system comprises four cameras, the calibration device comprises four flexible calibration plates corresponding to the cameras one by one, and each flexible calibration plate is arranged right below the corresponding camera. Compared with the prior art, the all-round looking system calibration device has the advantages of low realization cost, high calibration precision, wide application range and the like.

Description

technical field [0001] The invention relates to a calibration device for a surround-view system of an automobile, in particular to a calibration device for a surround-view system based on a flexible calibration board. Background technique [0002] The reversing camera is mostly used in a more complex reversing environment, but the field of view of one camera is limited. In the case of many obstacles in front of the vehicle, multiple cameras are usually used to form a vehicle surround view system (BEV) to provide the driver with a 360° view of the vehicle. Complete environmental perception information. The vehicle surround view system mainly uses the images captured by multiple cameras installed in the front, rear, left, and right sides of the vehicle. After the aforementioned viewing angle transformation processing, multiple virtual vertically downward top views centered on the vehicle are obtained, and are spliced ​​into a complete top view through a synthesis algorithm. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/06G01M11/00
CPCG06T7/80G06T2207/10016G06T2207/30204G06T2207/30252
Inventor 于萌萌马光林
Owner DELPHI ELECTRONICS SUZHOU