摘要:文章提出了一种基于轮廓的形状特征提取与识别方法。首先将目标轮廓转换成一维轮廓曲线,平滑去噪,接着获得曲线峰数和轮廓曲线在相邻峰谷间所含面积,并对后者进行DFT变换,提取出具有平移、旋转、尺度不变性的两类特征。针对这两类特征,采用两级递推识别方法。实验结果表明,该方法简单有效。关键词:轮廓曲线平滑特征提取两级递推模糊决策AContour-BasedMethodofFeatureExtractionandShapeRecognitionAbstract:Acontour-basedapproachtofeatureextractionandshaperecognitionispresented.Firsttheobjectcontourisrepresentedasa1-Dcontourcurve.Secondlythecurveissmoothedtorestrainthenoise.Thenumberoftheapexesonthecontourcurveandtheareasbetweenapexandvalewhichareadjacentareob