The invention discloses a projection image distortion correction method and system, and the method comprises the steps: employing a preset image, obtaining a first reference image through the display of an actual display screen, and obtaining a first projection image through the display of a projection screen, obtaining a first fitting relationship and a second fitting relationship according to the position of the recognizable point in the first reference image and the position of the corresponding recognizable point in the first projection image, the first fitting relation describes the relation between the ratio of the recognizable points of the first projection image with respect to the longitudinal position/transverse position and the longitudinal position/transverse position of the recognizable points in the first reference image; the second fitting relation describes the relation between the difference of the longitudinal position/transverse position of the recognizable points of the first projection image and the positions of the recognizable points in the first reference image, so that the pixel positions of the to-be-projected image are corrected according to the first fitting relation and the second fitting relation. The corrected to-be-projected image is projected to the projection screen to be displayed, and distortion of the displayed image can be avoided.

    本发明公开了一种投影图像畸变校正方法及系统,方法包括:利用预设图像,通过实际显示屏显示得到第一基准图像及通过投影屏显示得到第一投影图像,根据在第一基准图像中可识别点的位置及在第一投影图像中对应的可识别点的位置,获得第一拟合关系和第二拟合关系,第一拟合关系描述第一投影图像的可识别点关于纵向位置/横向位置的比值与在第一基准图像中可识别点的纵向位置/横向位置的关系,第二拟合关系描述第一投影图像的可识别点关于纵向位置/横向位置的差量与在第一基准图像中可识别点的位置的关系,以根据第一拟合关系和第二拟合关系对待投影图像的像素位置校正。使得将校正后的待投影图像投射到投影屏显示,显示出的图像能够避免存在畸变。


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    Title :

    Projection image distortion correction method and system


    Additional title:

    一种投影图像畸变校正方法及系统


    Contributors:
    RUAN YAFEI (author) / ZHANG FUXIA (author) / WANG DANLI (author) / RUAN PENGFEI (author)

    Publication date :

    2025-01-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES