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Camera external parameter correction method and device and vehicle-mounted all-round view system

A camera and external parameter technology, applied in the field of computer vision, can solve the problems of increasing the difficulty and cost of maintenance of the vehicle surround view system, and achieve the effect of reducing the scene requirements

Pending Publication Date: 2021-11-26
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology

[0004] At present, when correcting the external parameters of each vehicle-mounted camera, the user needs to drive the vehicle to the 4S store of the corresponding manufacturer, and the professionals in the 4S store will re-calibrate the external parameters of each vehicle-mounted camera, which virtually increases the visibility of the vehicle-mounted surround view system. Difficulty and cost of maintenance

Method used

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  • Camera external parameter correction method and device and vehicle-mounted all-round view system
  • Camera external parameter correction method and device and vehicle-mounted all-round view system
  • Camera external parameter correction method and device and vehicle-mounted all-round view system

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Embodiment Construction

[0082] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0083] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and not necessarily Describe a particular order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated or described...

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Abstract

The invention provides a camera external parameter correction method and device and a vehicle-mounted all-round view system. The method comprises the following steps: acquiring images shot by a plurality of cameras; performing calibration line detection on the image to obtain the edge of a calibration line in the image; adjusting the external parameters of the plurality of cameras until the position information of the edges of the calibration lines in a world coordinate system meets the prior information of the at least two calibration lines, wherein the prior information comprises at least one of the following: the width of the calibration lines, the distance between the adjacent calibration lines, and the parallel relationship between the calibration lines. Through the above process, the external parameters of the camera are corrected based on the information of the calibration line in the image, a user does not need to drive the vehicle to a 4S store for calibration, and convenience is provided for the user to use the vehicle-mounted surround view system. In addition, only the vehicle is required to be approximately parallel to the calibration line, and the scene requirement of camera external parameter calibration is reduced.

Description

technical field [0001] The present application relates to the technical field of computer vision, in particular to a camera extrinsic parameter correction method and device, and a vehicle-mounted surround view system. Background technique [0002] The vehicle surround view panoramic image assistance system, referred to as the vehicle surround view system, is one of the vehicle auxiliary safety systems. The car surround view system allows the driver to intuitively see a 360-degree panorama around the car body through the display screen, providing visual assistance for the driver, and has become the standard configuration of many models. [0003] A vehicle-mounted surround view system usually includes multiple vehicle-mounted cameras, and each vehicle-mounted camera is used to capture images in different directions around the vehicle body. By splicing and rendering the images captured by each vehicle-mounted camera, a panoramic image around the vehicle body is obtained. The ...

Claims

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Application Information

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IPC IPC(8): G06T7/80
CPCG06T7/80G06T2207/30248
Inventor 冉盛辉
Owner HANGZHOU HIKVISION DIGITAL TECH
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