公开(公告)号：US4907877A

公开(公告)日：1990-03-13

申请号：US270430

申请日：1988-11-09

申请人： Yutaka Fukuda ,  Koji Minagawa ,  Hiroichi Nabeshima ,  Koichiro Muneki ,  Yoshikatsu Asano ,  Kazuo Aoki ,  Yutaka Ishizaka

发明人： Yutaka Fukuda ,  Koji Minagawa ,  Hiroichi Nabeshima ,  Koichiro Muneki ,  Yoshikatsu Asano ,  Kazuo Aoki ,  Yutaka Ishizaka

IPC分类号： G01M11/06

CPC分类号： G01M11/065 ,  G01M11/064

摘要： A method and apparatus for determining or adjusting a projecting direction of a light beam emitted from an automobile headlight is provided. In a first aspect of the present invention, the peripheral region of a light beam is used in determining its projecting direction. In particular, a region definable in a light pattern of the projected beam having a proportionality relation between log S and I, where S indicates the value of an area having light intensity I or above, is determined and its outer contour or any predetermined point in the contour is used in determining the projecting direction. In a second aspect, apparatus for determining a projecting direction of a light beam emitted from an automobile headlight includes an indicator which automatically indicates a predetermined position of a light pattern of the light beam projected. In a third aspect, there is provided a system for automatically adjusting a projecting direction of a light beam if it deviates from a predetermined direction using a motor engageable with a mounting structure of the headlight.

公开(公告)号：US4679935A

公开(公告)日：1987-07-14

申请号：US664828

申请日：1984-10-25

申请人： Yutaka Fukuda ,  Koji Minagawa ,  Hiroichi Nabeshima ,  Koihiro Muneki ,  Yoshikatsu Asano ,  Kazuo Aoki ,  Yutaka Ishizaka

发明人： Yutaka Fukuda ,  Koji Minagawa ,  Hiroichi Nabeshima ,  Koihiro Muneki ,  Yoshikatsu Asano ,  Kazuo Aoki ,  Yutaka Ishizaka

IPC分类号： G01M11/06 ,  G01J1/00

CPC分类号： G01M11/065 ,  G01M11/064

摘要： A method and apparatus for determining or adjusting a projecting direction of a light beam emitted from an automobile headlight is provided. In a first aspect of the present invention, the peripheral region of a light beam is used in determining its projecting direction. In particular, a region definable in a light pattern of the projected beam having a proportionality relation between log S and I, where S indicates the value of an area having light intensity I or above, is determined and its outer contour or any predetermined point in the contour is used in determining the projecting direction. In a second aspect, apparatus for determining a projecting direction of a light beam emitted from an automobile headlight includes an indicator which automatically indicates a predetermined position of a light pattern of the light beam projected. In a third aspect, there is provided a system for automatically adjusting a projecting direction of a light beam if it deviates from a predetermined direction using a motor engageable with a mounting structure of the headlight.

摘要翻译： 提供了一种用于确定或调整从汽车前灯照射的光束的投射方向的方法和装置。 在本发明的第一方面中，光束的周边区域用于确定其投射方向。 特别地，确定具有log S和I之间的比例关系的投影光束的光图案区域，其中S表示具有光强度I或更高的区域的值，并且其外轮廓或任何预定点在 轮廓用于确定投影方向。 在第二方面中，用于确定从汽车前灯发射的光束的投影方向的装置包括自动指示投射的光束的光图案的预定位置的指示器。 在第三方面中，提供一种系统，用于如果使用可与前灯的安装结构接合的电动机偏离预定方向，则自动调节光束的投射方向。

公开(公告)号：US5691543A

公开(公告)日：1997-11-25

申请号：US460498

申请日：1995-06-02

申请人： Yutaka Ishizaka

发明人： Yutaka Ishizaka

IPC分类号： G01B11/24 ,  G01N21/956 ,  G01N21/88

CPC分类号： G01N21/95607

摘要： A contour inspecting device for detecting a defect in a contour of an object to be inspected according to the invention comprises; an image memory for storing an image of the inspection object captured by a camera; a scanner for scanning, along a plurality of scanning lines, an inspection region which covers a part of the image stored in the image memory; a binary unit for converting an image signal read out by the scanner into a binary signal; a detector for detecting positions of changing points at which the value of the binary signal changes; a comparator for calculating a difference between positions of the changing points on two of the plurality of scanning lines separated from each other by a predetermined interval; and a decision unit for determining whether or not the contour of the inspection object has a defect on the basis of a comparison of the difference with a predetermined value.

摘要翻译： 根据本发明的用于检测被检查物体的轮廓中的缺陷的轮廓检查装置包括： 用于存储由照相机拍摄的检查对象的图像的图像存储器; 扫描仪，沿着多条扫描线扫描覆盖存储在图像存储器中的图像的一部分的检查区域; 用于将由扫描器读出的图像信号转换为二进制信号的二进制单元; 用于检测所述二进制信号的值改变的变化点的位置的检测器; 比较器，用于计算彼此分离的多个扫描线之间的变化点的位置之间的差异预定间隔; 以及判定单元，用于基于差异与预定值的比较来确定检查对象的轮廓是否具有缺陷。

公开(公告)号：US4748676A

公开(公告)日：1988-05-31

申请号：US49603

申请日：1987-05-14

申请人： Michiaki Miyagawa ,  Yutaka Ishizaka

发明人： Michiaki Miyagawa ,  Yutaka Ishizaka

IPC分类号： G01B11/26 ,  G06K9/50 ,  G06T7/20 ,  G06K9/52

CPC分类号： G06K9/50 ,  G06T7/20

摘要： A pattern rotation angle detecting system in which the angle of rotation of a pattern is detected according to the image data obtained by binary-coding and spatially-dividing the image signal of the pattern. The system comprises an extracting circuit for extracting the area and the moment of inertia of the image of the pattern directly from the binary-coded image data; a memory for storing the image data; and a processing circuit for obtaining the center of gravity of the image of the pattern using the area and the moment of inertia, circularly scanning the memory in such a manner that a circle is described having a center at the center of gravity, extracting arcuate segments, selecting as a reference arcuate segment one of the arcuate segments which satisfies predetermined conditions, mating a sample under detection with a standard sample using the properties of the reference arcuate segment and at least one arcuate segment from each side of the reference segments, and detecting the angle of rotation from the angle defined by the angle formed by a rotation angle reference point of the reference arcuate segment with respect to a predetermined reference line.

摘要翻译： 根据通过二进制编码获得的图像数据并且对图案的图像信号进行空间分割，检测图案的旋转角度的图案旋转角度检测系统。 该系统包括一个提取电路，用于从二进制编码的图像数据直接提取图案的图像的面积和惯性矩; 用于存储图像数据的存储器; 以及处理电路，用于使用该区域和惯性矩获得图案的图像的重心，以这样的方式循环地扫描存储器，即以重心为中心描绘圆，从而提取弓形段 选择满足预定条件的弓形段之一的参考弧形段，使用参考弧形段的属性和来自参考段的每一侧的至少一个弓形段将检测中的样本与标准样品进行匹配，并且检测 从由参考弧形段的旋转角度参考点形成的角度相对于预定参考线限定的角度的旋转角度。

公开(公告)号：US4876732A

公开(公告)日：1989-10-24

申请号：US50578

申请日：1987-05-18

申请人： Michiaki Miyagawa ,  Yutaka Ishizaka ,  Shoji Shimomura

发明人： Michiaki Miyagawa ,  Yutaka Ishizaka ,  Shoji Shimomura

IPC分类号： G01B11/26 ,  G06K9/32

CPC分类号： G06K9/3283

摘要： A system and method for determining a rotational angle of an objective pattern which involves calculating the area A and linear moments M.sub.x and M.sub.y of the pattern from binary picture elements formed after optically sensing the pattern. The picture elements are stored in the memory in binary form. The center of gravity of the objective pattern is calculated on the basis of the area A and the linear moments M.sub.x and M.sub.y, and a circular or ring-like search region (a window) is formed about that center of gravity. Thereafter, significant picture information in the search region is extracted from the picture information stored in the memory (in either an inverted or non-inverted state). The rotational angle of the objective pattern is then determined either by using a moment of inertia method or a inter two-gravity centers method calculation. The selection between the moment of inertia method and the inter two-gravity centers method can be performed by means of pre-set switch state information.

摘要翻译： 一种用于确定物镜图案的旋转角度的系统和方法，其涉及从在光学感测图案之后形成的二进制像素计算图案的面积A和线性力矩Mx和My。 图像元素以二进制形式存储在存储器中。 基于区域A和线性力矩Mx和My计算物镜图案的重心，围绕该重心形成圆形或环形搜索区域（窗口）。 此后，从存储在存储器中的图像信息（以反相或非反相状态）提取搜索区域中的有效图像信息。 然后通过使用惯性矩法或双重重心法来计算物镜图案的旋转角度。 惯性矩法和双重重心法可以通过预置开关状态信息进行选择。