CAJ | 학술논문

工程设计中涉及大量的设计资料，设计资料的一部分是以曲线图表的形式存在，螺旋角系数曲线是典型的工程曲线，具备工程曲线的特征。以螺旋角系数曲线图像为例，提出扫描图像的预处理、图像校正、图像裁剪、二值化处理、网格去除、特征点提取等方法，进一步利用最小二乘法对特征点进行曲线拟合，实现工程曲线的数字化。
공정설계중섭급대량적설계자료，설계자료적일부분시이곡선도표적형식존재，라선각계수곡선시전형적공정곡선，구비공정곡선적특정。이라선각계수곡선도상위례，제출소묘도상적예처리、도상교정、도상재전、이치화처리、망격거제、특정점제취등방법，진일보이용최소이승법대특정점진행곡선의합，실현공정곡선적수자화。
Engineering design revolved a lot of design data .Partial design data were described in the form of curve chart . Spiral angle coefficient curve was a typical engineering curve and had the characteristics of engineering curves .In the paper , spiral angle coefficient curve was as an example in which scanning image preprocessing ,image revision ,image cropping , binarization processing ,mesh removing ,characteristics point extracting of spiral angle coefficient curve were put forward . Furthermore ,the least square method was used to fit characteristic points and accomplish digitizing of engineering curves .