首页> 外国专利> Image positional relationship correction device, steering assist device including the image positional relationship correction device, and image positional relationship correction method

Image positional relationship correction device, steering assist device including the image positional relationship correction device, and image positional relationship correction method

机译:图像位置关系校正装置,包括该图像位置关系校正装置的转向辅助装置以及图像位置关系校正方法

摘要

A video image positional relationship correction apparatus is disclosed. Coordinate conversion parameters including internal parameters of a camera and attachment parameters are used as unknown numbers. Relational expressions are produced such that the number of the relational expressions is larger than the number of the coordinate conversion parameters to be calculated. Values of the coordinate conversion parameters are calculated based on deviations between monitor coordinates of video image reference points Q1 to Q6 actually captured by the camera and displayed, and the corresponding monitor coordinates of virtual target points R1 to R6. The monitor coordinates of the virtual target points are derived from the actual coordinates of the reference points based on the values of the calculated coordinate conversion parameters. The coordinate conversion parameters are determined such that the square-sum of the deviations between the monitor coordinates of the virtual target points and the monitor coordinates of the actually captured video image reference points is the minimum. Based on the determined values of the coordinate conversion parameters, the relative positional relationship between the actual video image and the virtual video image is corrected.
机译:公开了一种视频图像位置关系校正设备。包括照相机内部参数和附件参数的坐标转换参数被用作未知数。产生关系表达式,使得关系表达式的数量大于要计算的坐标转换参数的数量。坐标转换参数的值是基于摄像机实际拍摄并显示的视频图像参考点Q1至Q6的监视坐标与虚拟目标点R1至R6的相应监视坐标之间的偏差来计算的。基于计算出的坐标转换参数的值,从参考点的实际坐标中得出虚拟目标点的监视坐标。确定坐标转换参数,使得虚拟目标点的监视器坐标与实际捕获的视频图像参考点的监视器坐标之间的偏差的平方和为最小。基于确定的坐标转换参数的值,校正实际视频图像和虚拟视频图像之间的相对位置关系。

著录项

  • 公开/公告号JP4196841B2

    专利类型

  • 公开/公告日2008-12-17

    原文格式PDF

  • 申请/专利权人 株式会社豊田自動織機;

    申请/专利号JP20040023673

  • 发明设计人 嶋▲崎▼ 和典;

    申请日2004-01-30

  • 分类号H04N7/18;B60R1;B60R21;G06T1;G06T3;G06T17/40;

  • 国家 JP

  • 入库时间 2022-08-21 19:38:12

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