The invention discloses a method for projecting a blind area of a vehicle-mounted column A. The method comprises the steps of S1, installing a binocular camera at a sun shield in a vehicle, and calculating coordinate points D of the eyes of a driver in a vehicle body coordinate system; S2, installing a camera on the outer side of the A column; S3, pasting a diffuse reflection film on the inner side of the column A to obtain a diffuse reflection surface S; S4, arranging a virtual observation surface G in the space outside the vehicle based on the visual blind area, shielded by the A column, of the driver in the vehicle, the scene in the virtual observation surface comprises the visual blind area, and the camera collects images outside the vehicle in real time; and S5, calculating an expression of the G in the camera coordinate system and a projection matrix of the plane G projected to the D point in the plane S to obtain a projection matrix EC2DS of an image shot by the camera at the D point, converting the image shot by the camera into a projection image suitable for the A column through the EC2DS, and projecting the projection image to the diffuse reflection film of the A column through the projector. According to the method, the image projected on the A column is more accurate than human eyes.

    本发明公开了一种用于投影车载A柱盲区的方法,包括:S1:在车内遮阳板处安装双目相机,并计算驾驶员的双眼在车身坐标系下的坐标点D;S2:在A柱外侧安装相机;步骤3:在A柱内侧张贴漫反射膜,从而得到漫反射面S;S4:基于驾驶员在车内被A柱遮挡的视觉盲区,在车外空间设置虚拟观测面G,该虚拟观测面中的场景包括视觉盲区,相机实时采集车外图像;S5:计算G在相机坐标系下的表达式,以及平面G面向D点投影在平面S中的投影矩阵,得到相机拍摄的图像在D点的投影矩阵EC2DS,通过EC2DS将相机拍摄的图像转换为适合A柱的投影图像,并通过投影仪投影至A柱的漫反射膜上。本发明使得投影在A柱上的图像相对人眼更加精确。


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    Title :

    Method for projecting blind area of vehicle-mounted column A


    Additional title:

    一种用于投影车载A柱盲区的方法


    Contributors:
    WANG JUE (author)

    Publication date :

    2021-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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