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    • 3. 发明申请
    • FILTER FOR DILATION AND EROSION OF IMAGES
    • 过滤和图像的渗透
    • WO1992021093A1
    • 1992-11-26
    • PCT/FI1992000147
    • 1992-05-08
    • RAUTARUUKKI OYVALTION TEKNILLINEN TUTKIMUSKESKUSSARKKINEN, TimoPIIRONEN, TimoTIENSYRJÄ, Kari
    • RAUTARUUKKI OYVALTION TEKNILLINEN TUTKIMUSKESKUS
    • G06F15/68
    • G06T5/30
    • The invention relates to a filter for applying dilation and/or erosion operations of mathematical morphology to a W x H local neighbourhood, the width of which is W and the height H, of a two-dimensional matrix formed by discrete values, the width of which matric is x and the height y. In order to provide an operation in real time by means of a very simple structure, the filter comprises a horizontal portion for applying a dilation/erosion operation to a W x 1 local neighbourhood made to slide over the matrix and a vertical portion for applying a dilation/erosion operation to a 1 x H local neighbourhood made to slide over the matrix, whereby the portions are connected one after another, the output (MINW, MINH) of one portion being connected to the input (IH, IV) of the other portion.
    • 本发明涉及一种用于将数学形态的扩张和/或侵蚀操作应用于W x H局部邻域的滤波器,其宽度为W和由离散值形成的二维矩阵的高度H,宽度 哪个矩阵是x和高度y。 为了通过非常简单的结构实时提供操作,滤波器包括用于对W×1局部邻域进行扩张/侵蚀操作的水平部分,该区域在矩阵上滑动,垂直部分用于施加 对1×H局部邻域进行扩张/侵蚀操作,使其在矩阵上滑动,由此这些部分依次连接,一部分的输出(MINW,MINH)连接到另一个的输入端(IH,IV) 一部分。
    • 4. 发明申请
    • A METHOD OF OPTICALLY DETERMINING THE SPEED OF A SURFACE
    • 一种光学测定表面速度的方法
    • WO1990007123A1
    • 1990-06-28
    • PCT/FI1989000231
    • 1989-12-11
    • VALTION TEKNILLINEN TUTKIMUSKESKUSELSILÄ, MarttiPIIRONEN, TimoJOKINEN, Hannu
    • VALTION TEKNILLINEN TUTKIMUSKESKUS
    • G01P03/68
    • G01P3/68
    • The invention relates to a method of optically determining the speed of a surface by means of picture rows (3) successive in time, the picture rows being obtained from an array of photodetectors arranged in parallel with the direction of the movement. The method of the invention, applicable within a wide speed range and having a good resolution, comprises digitizing (5) the analog signals from the array of photodetectors (2); storing the digitized picture rows successive in time, whereby the picture rows arranged side by side can be assumed to form a two-dimensional picture in the space-time domain; and determining (8) the slope or a corresponding quantity of a line drawn by each picture element in the picture row in said space-time domain to obtain a value proportional to the speed of the surface (1).
    • 本发明涉及一种通过在时间上连续的图像行(3)光学地确定表面速度的方法,图像行是从与运动方向平行排列的光电检测器阵列获得的。 本发明的方法适用于宽速度范围并具有良好的分辨率,包括数字化(5)来自光电探测器阵列(2)的模拟信号; 在时间上连续地存储数字化图像行,由此可以假设并排布置的图像行在时空域中形成二维图像; 并且确定(8)在所述时空域中的图片行中的每个图像元素绘制的线的斜率或相应量,以获得与表面(1)的速度成比例的值。