像增强器视场缺陷检测方法研究

Research of an Approach to Detect Field Defects of Image Intensifier

在数字式像增强器性能综合检测系统的基础上,研究了像增强器视场缺陷的检测方法。通过数字视频摄像机采集缺陷图像,利用数字图像处理方法确定缺陷性质,缺陷处理算法基于图像灰度特征而不是边缘特征提取。该方法适用于对检测对象有具体量化和定位要求,而不是简单的只有数量和形状特征要求的场合。实验表明,该检测方法能够较准确地检测像增强器的缺陷。

Based on the digital image intensifier performance all-around detection system,the detection method of image intensifier field defects is researched. After capturing a image with a defect, its property is known with digital imaging processing method. The field defect processing algorithm is based on the image gray feature extraction but not on the edge feature extraction. This algorithm is suitable to the objects which have quantitative and localized requirements. The experiment results show that this method can accurately detect field defects of the image intensifier.