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    • 62. 发明申请
    • Image Inclination Correction Device and Image Inclination Correction Method
    • 图像倾角校正装置和图像倾斜校正方法
    • US20090244308A1
    • 2009-10-01
    • US12300687
    • 2007-05-02
    • Yukio Mori
    • Yukio Mori
    • H04N5/228G06K9/36
    • H04N5/2628G06T3/60G06T7/70H04N1/3878H04N2101/00
    • An original image obtained by imaging and a rotated image obtained by rotating the original image are made to be evaluation images. For each of the evaluation images, an inclination of the evaluation image with respect to an axis parallel to a plumb line in the image is evaluated. According to the evaluation result, the original image is rotated/corrected so as to reduce the inclination. More specifically, the horizontal edge components of the evaluation image are calculated in a matrix state and the magnitudes of the horizontal edge components are projected in a vertical direction so as to calculate a vertically projected value QV[n]. The original image is rotated/corrected in the direction to increase the magnitude of the horizontal-direction high-hand component of the vertical projection value QV[n]. The same applies when a horizontally projected value QH[m] corresponding to vertical edge components is used.
    • 将通过成像获得的原始图像和通过旋转原始图像获得的旋转图像作为评价图像。 对于每个评估图像,评估评估图像相对于平行于图像中的铅垂线的轴线的倾斜度。 根据评价结果,原图像被旋转/校正,以便减小倾斜度。 更具体地,以矩阵状态计算评估图像的水平边缘分量,并且水平边缘分量的大小在垂直方向上投影,以便计算垂直投影值QV [n]。 沿着垂直投影值QV [n]的水平方向高分分量的大小的方向旋转/校正原始图像。 当使用对应于垂直边缘分量的水平投影值QH [m]时,这同样适用。