计算机辅助青铜器纹饰特征线识别方法研究

Research on computer aided recognition method of bronze decoration feature contour

针对青铜器纹饰特征轮廓线识别关键算法和技术,分析了当下纹饰数字化设计的基本现状。基于计算机辅助技术和三角网格基础理论,结合图像聚类和阈值方法,提出特征轮廓线识别关键技术由轮廓角点、特征曲线段、分段轮廓线匹配和空间曲线匹配4个环节构成。构建了纹饰目标特征识别算法和流程,采用曲率最大值识别轮廓角点,通过特征曲线段对轮廓曲线进行表述和投影,采用曲线弦长法对特征曲线进行匹配与拼接。建立了青铜器纹饰特征识别方法,基于计算机辅助技术,从纹饰特征识别到空间曲线的匹配与拼接完整流程。计算机辅助设计技术的青铜器纹饰特征识别方法具有数字化、智能化和高效化特征。根据实验结果,该方法在目标对象纹饰识别和提取方面具有广阔的应用前景。

Centering on the key algorithms and techniques for identifying the contour lines of bronze ornamental features,analyses were made on the present situation of the digital design of current decorations.Based on the computer-aided technology and triangular grid basic theory,using the image clustering and threshold method,it was proposed that the key technology of characteristic contour recognition comprised contour corner point,characteristic curve segment,segmented contour matching,and spatial curve matching.The recognition algorithm and process for the target feature of the decoration were constructed,and the maximum curvature was employed to identify contour corners.In addition,the characteristic curve segment was utilized to express and project the contour curve,and the curve chord length method was adopted to match and splice the characteristic curve.A method was established for identifying bronze decorative patterns,and based on computer-aided technology,the complete process was realized from pattern recognition to spatial curve matching and splicing.The bronze feature recognition method based on the computer-aided design technology possessed the characteristics of digitization,high-level intelligence and efficiency.The experimental results indicate that there is a promising prospect for the application of this method in target object pattern recognition and extraction.