Dark-field detection method of shallow scratches on the super-smooth optical surface based on the te

来源 :Chinese Optics Letters | 被引量 : 0次 | 上传用户:kenching
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
There exist some shallow scratch defects on the super-smooth optical surface. Their detection has a low efficiency with the existing technologies. So a new detection method, dark-field detection of adaptive smoothing and morphological differencing(DFD-ASMD), is proposed. On one hand, the information of shallow scratches can be kept in dark-field images. On the other hand, their weak characteristics can be separated and protected from being overly reduced during the elimination of noise and background in the image. Experiments show the detection rate of shallow scratches is around 82%, and DFD-ASMD can lay a foundation for quality control of defects on the high-quality optical surface. Their detection has a low efficiency with the existing technologies. So a new detection method, dark-field detection of adaptive smoothing and morphological differencing (DFD-ASMD), is proposed. On the hand, the information of shallow scratches can be kept in dark-field images. On the other hand, their weak characteristics can be separated and protected from being overly reduced during the elimination of noise and background in the image. Experiments show the detection rate of shallow scratches is around 82%, and DFD-ASMD can lay a foundation for quality control of defects on the high-quality optical surface.
其他文献
作为中学音乐教师,培养学生学习音乐的兴趣是关键。音乐这门课程在考试中不占分数,但是音乐教育的根本目的是为了培养学生的全面发展。虽然音乐课并不涉及到升学考试,但作为
智商情商识商智商,妇孺皆知。智商高的聪明机智,便于学习、提高和发展;智商低的人则表现迟钝,接受能力较差,低到一定程度就叫傻,也就是糊涂、愚蠢。情商,这是美国一个研究所经过几十
接触过民进中央委员、民进上海市委会专职副主委许政涛的人,或许都有同样的感受,比起一般党派专职干部,他更像一位儒雅的学者。这印象,或许能从许政涛曾总结自己走过的人生经历里寻找出答案:无论是在黑龙江下乡、在静安区任职,还是走进民主党派工作,他说“在任何岗位,我从事的工作都与科研、课题有关”。  2013年年底,许政涛和民进上海市委会便又接手了一个新的“课题”——开展一项贯穿民进各项工作、贯穿本届任期的
通过对新开发的EQD6105T柴油发动机连杆螺栓的抗拉强度、疲劳强度、磨擦性能、附加载荷以及受力情况的分析,得出了该连杆螺栓装配中的预紧力和扭矩要求.对试制连杆螺栓的综合
思想性是思想政治课程的根本特性。在教学中有一个不可回避的问题,那就是:思想,道德,理想、信念、价值观这些思想政治课要完成的核心目标,能教吗,如果能教的话,怎样教才是有
秋风渐凉,忽的吹来一阵,胳膊上就会泛起细细密密的一层。于是,晚饭后的漫步也开始变得有些急匆匆了。放眼望去,厚重的长衣长裤已然上场,何时不见了我钟爱的轻柔飘逸的裙装?同伴也是一阵感叹,曾经认为漫长无边的酷暑竟这般让人眷恋。然而,转念一想:是否我们总是如此,冬日里抱怨恼人的雨雪天寒,夏日里惋惜没有了春日的和风细雨和山花烂漫。正如此刻,一阵凉风就让我们忘记了扑鼻而来的浓郁的桂花香……  不易满足也许真的
编辑同志:在实际工作中,我们常遇到这样一个难题:某公司的一辆三轮摩托车行驶途中经过某厂,因故突然起火,驾驶员和周围群众立即用厂里的干粉灭火器抢救。事后,该厂要某公司赔
自保温混凝土砌块是应我国建筑节能的要求而研发的一种新型节能砌块。通过对这种新型自保温砌块砌体抗弯性能的测试,结果表明:自保温混凝土砌块砌体受弯破坏过程非常短暂,无
In this paper the approximate solution of one-dimensional nonlinear transient heat conduction equation with the constant temperature boundaries is obtained by t
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.