发明名称 PATTERN INSPECTION INSTRUMENT
摘要 PURPOSE:To improve working efficiency and to reduce the cost of the title device by obtaining the contact between a rectangle circumscribed to an inspection object pattern and the inspection object pattern, calculating the degree of the inclination of the inspection object pattern, and deciding the normal/ defective condition of the inspection object pattern from the result. CONSTITUTION:For the device, a camera 1, a binarization part 2, a circumscribed rectangle detecting part 4, a contact position detecting part 5, and a deciding part 6 are provided. Further, the rectangle circumscribed to a character 2 is detected from binarized picture data in the circumscribed rectangle detecting part 4, the contact between the circumscribed rectangle and the character 2 is detected in the contact position detecting part 5, and the deciding part 6 compares a contact position detected in the contact position detecting part 5 with the contact position between a previously determined reference character and the circumscribed rectangle and decides the degree of the inclination of the character 2 from the magnitude of the difference between both the contact positions. Thus, the pattern can be inspected, and the normal/defective condition of the pattern can be decided by the simple processing.
申请公布号 JPH02146683(A) 申请公布日期 1990.06.05
申请号 JP19880301862 申请日期 1988.11.28
申请人 SHARP CORP 发明人 SATO KUNIHIRO
分类号 B41J29/46;G06T1/00 主分类号 B41J29/46
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