CAJ | 학술논문

针对坡口对接焊缝图像的特点 ,采取灰度形态学闭运算、二值化和Canny算子对图像进行边缘检测 ,利用最小二乘法拟合得到边缘图像方程来获得焊缝宽度和深度信息.因为焊点的噪声使得图像处理中的焊缝边缘定位出现了异常 ,所以数据中出现了失真数据 ,针对数据中出现的失真数据利用插值算法剔除伪数据 ,最后采用三次样条插值对数据进行修正得到比较平滑、具有一阶连续导数的插值曲线 ,较好地实现了对于伪数据点的修正.该研究对于工程实践具有一定的实用性.
침대파구대접한봉도상적특점 ,채취회도형태학폐운산、이치화화Canny산자대도상진행변연검측 ,이용최소이승법의합득도변연도상방정래획득한봉관도화심도신식.인위한점적조성사득도상처리중적한봉변연정위출현료이상 ,소이수거중출현료실진수거 ,침대수거중출현적실진수거이용삽치산법척제위수거 ,최후채용삼차양조삽치대수거진행수정득도비교평활、구유일계련속도수적삽치곡선 ,교호지실현료대우위수거점적수정.해연구대우공정실천구유일정적실용성.
In accordance with the characteristics of the butt weld image ,this article designs the gray-scale morphological close opera-tion ,binarization and Canny operator for edge detection and uses the researching method to extract the image character to record the edge coordinate of welding line .Because of the solder joint making the weld edge positioning noise in image processing abnormally , there are some mutation data appear .Using the algorithm to eliminate false data ,this article finally uses cubic spline interpolation to modify data to get a continuous derivative first-order interpolation curve ,the correction of pseudo data points are realized ,which is of great value to the engineering practice .