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    • 40. 发明授权
    • Image processing method, image processing apparatus and image capturing apparatus
    • 图像处理方法,图像处理装置和图像捕获装置
    • US08913162B2
    • 2014-12-16
    • US13882552
    • 2011-10-27
    • Takashi KawabeShigeyuki Ueda
    • Takashi KawabeShigeyuki Ueda
    • H04N5/217G06T5/00H04N5/232H04N5/357
    • H04N5/217G06T5/006H04N5/23238H04N5/3572
    • An image processing method, an image processing apparatus and an image capturing apparatus are provided, which are capable of obtaining an output image exhibiting high visual recognizability while reducing the processing time with a circuit on a comparatively small scale. Datum plane system coordinates xdydzd with a datum plane DP serving as a basis and having a fixed positional relationship with a virtual projection plane VP are set, and there is provided a two-dimensional LUT stored with zd coordinates in a direction perpendicular to the datum plane with respect to xd- and yd-coordinates on the datum plane DP and based on a shape of the virtual projection plane VP, and image data is calculated, by calculating the coordinates of the pixels on the virtual projection plane VP in the world coordinate system on the basis of the two-dimensional LUT and converting the calculated coordinates of the pixels on the virtual projection plane in the world coordinate system into a camera coordinate system by using a distortion correction coefficient of an optical system.
    • 提供了一种图像处理方法,图像处理装置和图像捕获装置,其能够以比较小规模的电路减少处理时间来获得呈现高视觉可识别性的输出图像。 基准平面系统坐标xdydzd与基准平面DP作为基准并且与虚拟投影平面VP具有固定的位置关系,并且提供一个与垂直于基准平面的方向上以zd坐标存储的二维LUT 相对于基准平面DP上的xd和yd坐标,并且基于虚拟投影平面VP的形状,并且通过计算世界坐标系中的虚拟投影平面VP上的像素的坐标来计算图像数据 在二维LUT的基础上,通过使用光学系统的失真校正系数,将世界坐标系中的虚拟投影面上的像素的计算坐标转换为摄像机坐标系。