张振;赵建博;王立忠;周宗杰;汪耀;

• 1:新疆大学机械工程学院
• 2:西安交通大学机械工程学院

摘要(Abstract)：

为了提高DC04钢板耐冲击度时的测量精度,提出了一种局部降噪方法以降低钢板在高速冲击过程中的局部强光.此方法主要运用线性变换进行计算,使用高斯低通滤波等仪器进行测量比较,运用图像评价的标准进行选择.这种方法运用图片中提取的灰度信息来确定被干扰的区域,灰度阶跃值的变化可以确定光强弱的变化,可以确定受干扰的区域的大小以及方向等信息;运用PSNR评价标准来确定灰度图片的截止频率;把灰度图像通过线性的变换调至正常的范围内,代替强光区域进行之后的运算.最终经过实验检验比较得到了较高的精度.

关键词(KeyWords)： 高速冲击;局部降噪;线性变换;强光干扰;高斯低通滤波

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学地区基金（51865057）

作者(Authors): 张振;赵建博;王立忠;周宗杰;汪耀;

DOI: 10.13568/j.cnki.651094.651316.2019.04.23.0002

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