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ji yu ji qi shi jue de mo ju bao hu fang fa yan jiu yu shi xian
Author(s): 
Pages: 1281-1284
Year: Issue:  5
Journal: Computer Measurement & Control

Keyword:  mold protectionmachine visionbackground updatingdifference image;
Abstract: 传统注塑机模具保护方法不稳定,经常出现误检测使模具损坏现象,为此提出一种基于机器视觉的模具保护方法;此方法是将合模前空模前景图与空模背景图相比较,计算各个ROI(Region of Interesting)检测区域内的像素合格率,以此判断合模前模具中是否有异物;采用了近红外光照明、背景自动更新等技术,以解决周围环境光亮度变化和震动对检测结果的负面影响;同时设定多个ROI检测区域,以提高检测速度和稳定性;根据实验结果可以得出基于视觉的模具保护方法具有处理稳定,速度快的特点,能够有效地保护模具和检测工件的完整性。
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