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    • 2. 发明授权
    • Connection inspecting apparatus, connection inspecting method, and recording medium for recording programs executing the method
    • 连接检查装置,连接检查方法以及用于记录执行该方法的程序的记录介质
    • US06872949B2
    • 2005-03-29
    • US09816155
    • 2001-03-26
    • Seiji MizuokaMasaru IchiharaNoriyuki SuzukiHaruko KubotaKazumasa Okumura
    • Seiji MizuokaMasaru IchiharaNoriyuki SuzukiHaruko KubotaKazumasa Okumura
    • G01N23/04G01N23/18H05K3/34
    • G01N23/04
    • Brightness information of, for example, an average value of brightnesses at an X-ray image of a first connected part when an electronic component is mounted onto only one face of a printed board is obtained. Binary images of an X-ray image of the board with the electronic components mounted to both faces are formed by an upper and a lower levels relative to the brightness information. The binary images are synthesized with each other so as to extract an image of only a second connected part. The image of only the second connected part can be obtained in this manner on the basis of the X-ray image of the double face-mounted board, so that an accuracy for connection inspection is improved. Also, a relationship between a density in the X-ray image of the connected part and a thickness of the connected part is obtained beforehand, based on which a plurality of thickness images are obtained for a plurality of X-ray images of different image storage times. The connected part can be inspected by synthesizing the images.
    • 获得例如当将电子部件安装到印刷电路板的一个面上时,第一连接部的X射线图像的亮度的平均值的亮度信息。 具有安装到两个面的电子部件的板的X射线图像的二进制图像相对于亮度信息由上部和下部层级形成。 二进制图像彼此合成,以便仅提取第二连接部分的图像。 基于双面安装板的X射线图像,可以以这种方式获得仅第二连接部分的图像,从而提高了连接检查的精度。 此外,预先获得连接部分的X射线图像中的浓度与连接部分的厚度之间的关系,基于该关系获得用于不同图像存储器的多个X射线图像的多个厚度图像 次 可以通过合成图像检查连接的部分。
    • 9. 发明授权
    • Component shape recognition method
    • 元件形状识别方法
    • US4981372A
    • 1991-01-01
    • US260998
    • 1988-10-21
    • Masamichi MorimotoKazumasa OkumuraAkira MohriDaisuke Ohkawara
    • Masamichi MorimotoKazumasa OkumuraAkira MohriDaisuke Ohkawara
    • G06T7/60G06K9/32G06K9/48
    • G06K9/48G06K9/32
    • A boundary of leads of an integrated circuit component shown by binary picture elements on a recognition plane of an image display means is detected by a conventional boundary detecting method, and respective corners of the leads are detected on the basis of variation of an angle between a predetermined axis and a line connecting two picture elements having a predetermined distance from each other on the boundary. Moreover, a shape of the lead is recognized on the basis of the shapes of the corners. Subsequently, a search zone containing a tip portion of one lead is set by referring the midpoint of the tip of the lead, and is scanned by horizonal scanning lines and vertical scanning lines. Then segments of both the scanning lines overlapping on the tip portion are obtained, and a protruding direction of the lead is detected referring to a segment touching on a boundary of a search zone. Furthermore, a midpoint of the tip is calculated from coordinate values of plural segments crossing the tip portion.
    • 通过传统的边界检测方法检测在图像显示装置的识别平面上由二进制图像元素示出的集成电路部件的引线的边界,并且基于a的角度的变化来检测引线的各个角 预定轴线和在边界上连接彼此具有预定距离的两个图像元素的线。 此外,基于角部的形状来识别引线的形状。 随后,通过引用引线的尖端的中点来设置包含一个引线的尖端部分的搜索区域,并且通过水平扫描线和垂直扫描线扫描。 然后,获得与尖端部分重叠的两条扫描线的段,并且根据在搜索区域的边界上触摸的段来检测引线的突出方向。 此外,从与尖端部分交叉的多个片段的坐标值计算尖端的中点。