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    • 1. 发明授权
    • Surface inspection apparatus
    • 表面检查装置
    • US4776466A
    • 1988-10-11
    • US86249
    • 1987-08-13
    • Hajime Yoshida
    • Hajime Yoshida
    • B07C5/34G01B11/30G01N21/84G01N21/89G01N21/892G01N21/90H04N7/18B07C5/342
    • B07C5/3408G01N21/90G01N2021/845Y10S209/939
    • Objects to be inspected are transferred successively in one direction on a conveyor and irradiated by a light source and photosensed by a single optical image sensor only, such as a video camera. The optical image sensor is so arranged that it simultaneously photosenses a plurality of the successively transferred inspected objects, and the conveyor is so constructed that during the period in which the objects pass through the visual field of the optical image sensor, the objects are rotated so that their entire round inspected surfaces are all respectively photosensed by the optical image sensor. The video signal from the optical sensor is supplied to an inspection device which periodically samples the video signal in synchronization with the shift movements of the objects, and judgment signals therefrom are respectively supplied to the parallel input terminals of a shift register, the number of which is the same as that of the number of objects in the visual field and at the same time a shift pulse synchronized with the movement of the objects is supplied to the shift register whereby it produces an output signal corresponding to the defective object to cause rejection of the defective object.
    • 要检查的物体在传送带上沿一个方向依次传送并由光源照射并且仅由单个光学图像传感器(例如摄像机)照射。 光学图像传感器被布置为同时对多个连续传送的被检查物体进行光照,并且输送机被构造成使得在物体通过光学图像传感器的视野的时期期间,物体被旋转 他们的整个圆形检查表面都分别由光学图像传感器照相。 来自光学传感器的视频信号被提供给与物体的移动移动同步地周期性地对视频信号进行采样的检查装置,并且其判断信号分别提供给移位寄存器的并行输入端,其数量 与视野中的物体的数量相同,并且与物体的移动同步的移动脉冲被提供给移位寄存器,由此它产生对应于有缺陷的物体的输出信号,从而导致拒绝 有缺陷的对象。
    • 2. 发明授权
    • Defect inspection apparatus
    • 缺陷检查装置
    • US4509076A
    • 1985-04-02
    • US617237
    • 1984-06-05
    • Hajime Yoshida
    • Hajime Yoshida
    • G01N21/956G01N21/88H04N7/18
    • G01N21/88G01N21/8851
    • A defect inspection apparatus having a television camera which picks up an object to be inspected and produces a video signal for inspecting defects on the object, wherein the apparatus comprises a detection section which outputs a signal responding to the positive changes of the video signal with respect to time and a further detection section which outputs a signal in response to the negative changes of the video signal with respect to time, so that a defect detection signal is only output when, after one of the detection sections generates an output, the other detection section generates an output within a given time period.
    • 一种具有拾取被检查对象的电视摄像机的缺陷检查装置,并且产生用于检查物体上的缺陷的视频信号,其中,该装置包括:检测部,其响应于视频信号的正变化而输出响应于 以及响应于视频信号相对于时间的负变化而输出信号的另外的检测部分,使得仅当检测部分中的一个检测部分产生输出后才输出缺陷检测信号,另一个检测部分 部分在给定的时间段内产生输出。
    • 3. 发明授权
    • Pattern discrimination method
    • 模式辨别方法
    • US4451929A
    • 1984-05-29
    • US352809
    • 1982-02-26
    • Hajime Yoshida
    • Hajime Yoshida
    • G06T7/00G06K9/62G06K9/66G07D7/12G07D7/20
    • G06K9/66G06K9/6255G07D7/12G07D7/20
    • A pattern discrimination method is disclosed which judges that, when the difference between the data from an object or subject to be inspected and previously memorized data of a standard subject falls within a first predetermined value, the object belongs to the same kind of the standard subject. In this case, the difference between the data of the object and the previously memorized data of the standard subject is compared with a second predetermined threshold value smaller than the first predetermined value. When the difference is smaller than the second predetermined threshold value, the memorized data is revised in response to the new data from the object.
    • 公开了一种模式识别方法,其判断当来自被检查对象的对象或被检体的数据与标准对象的先前存储的数据之间的差异落在第一预定值内时,该对象属于与标准对象相同的种类 。 在这种情况下,将对象的数据与标准被摄体的先前存储的数据之间的差异与小于第一预定值的第二预定阈值进行比较。 当差小于第二预定阈值时,响应于来自对象的新数据修改存储的数据。
    • 5. 发明授权
    • Pattern data processing method and apparatus to practice such method
    • 模式数据处理方法和装置来实践这种方法
    • US4295120A
    • 1981-10-13
    • US069911
    • 1979-08-27
    • Hajime Yoshida
    • Hajime Yoshida
    • G06K9/62G06K9/52G06T7/00G06K9/46
    • G06K9/52G06K2209/01
    • A screen is formed of a plurality of picture elements arranged in horizontal and vertical direction. The screen is consecutively scanned by a photo sensor while a pattern to be recognized is projected onto the screen, or is placed therein. The screen is divided into small picture frames containing at least two each horizontal and vertical neighboring picture elements which total a minimum of 2.times.2=4 picture elements. The output of the photo sensor is supplied to a delay means which is controlled so that the data of the plurality of small picture frames is obtained, and then processed for segregation by difference of type so that the peculiar data corresponding to the pattern projected or placed onto the screen is obtained.
    • 屏幕由沿水平和垂直方向布置的多个图像元素形成。 屏幕被光电传感器连续地扫描,而要识别的图案被投影到屏幕上,或被放置在其中。 屏幕被分成包含至少两个每个水平和垂直相邻图像元素的小图片帧,其总共最少2x2 = 4个图片元素。 光传感器的输出被提供给延迟装置,该延迟装置被控制成使得获得多个小图像帧的数据,然后通过类型的差异进行处理以使得与投影或放置的图案相对应的特殊数据 获得了屏幕。