摘要
开发研制了钢制轴类零件的荧光磁粉探伤系统．改系统的特点是：可采集到信噪比 很高的荧光数字图象，只需计算每一个象素点的灰度梯度就能快速完成自适应动态阈值图象 分割，并利用数学形态学的膨胀运算、基于联结数的收缩运算和颗粒筛选运算对二值图象进行 有效的处理。经验证，得到了有实用意义的结果．
The automatic system developed by us is discussed for the fluorescent magnetic inspection of some steely axle-like workpieces. The system has following advantages: The flourescent digital image that has the large signal-to-noise ratio could be sampled. Only if the grey-scale gradients for each image point are calculated, can the image segmemtation on a fast adaptive dynamic thresholding algorithm be achieved. The two-valued image is effectively processed by mathematical morphological expansion operation, the contraction operation based on the copulating number, and the filtration operation. And it is testified that the image acquisition and processing with this automatic system are practically useful.
出处
《北京工业大学学报》
CAS
CSCD
1999年第1期109-114,共6页
Journal of Beijing University of Technology
关键词
轴类
荧光探伤系统
无损检测
图象处理
图象采集
fluorescent magnetic particle inspection, dynamic thresholding, mathematical morphology, expansion and contraction
