作　　者： ; ;

机构地区： 华南理工大学

出　　处： 《工具技术》 2008年第4期34-36,共3页

摘　　要： 为了预测微分算子边缘提取能达到的效果,从频域角度出发,分析了边缘检测中常用微分算子的频谱特性。提出了在使用和构造微分算子时,要充分考虑它们的频谱特性。不同的微分算子对不同边缘检测的敏感程度是不同的,因此对不同类型的边缘提取,应该采用对此类型边缘敏感的算子进行边缘提取。最后,通过对摩托车压铸模零件的CCD图像处理验证了频谱分析方法用于边缘检测算子选择的可靠性。 For the sake of predicting the detection effect of differential operators, the frequency features of common operators are analyzed from the view point of frequency domain. It is proposed that the frequency features of the differential operators should be fully considered when differential operator is being used and/or constructed. Because edge detection operator is sensitive to the edge type, the appropriate operator should be adopted in different edge type detection. Finally, the reliability of spectrum analysis in selecting edge detection operators are proved in the casting die part＇s CCD image edge processing experiments.

关 键 词： 金属加工 边缘检测 微分算子 零件图像 频谱特性

领　　域： [石油与天然气工程] [理学] [理学]