轮廓形状匹配的形状函数小波特征方法

CONTOUR MATCHING BY WAVELET FEATURE OF SHAPE FUNCTION

利用形心点和 Aggarwal的形殊点 ,定义了轮廓形状的描述函数和起始点 ,并运用描述函数的 Daubechies周期小波系数特征 ,讨论了闭合轮廓曲线的整体匹配和局部匹配问题 .为适应快速识别目标和精确辩识物体的应用需要 ,提供了这类匹配方法的简易模型和精确模型 .实验结果表明这类方法具有良好的稳定性和可靠性 。

A kind of description and the initiation point of a closed curve are defined using the centroid and the shape-specific point of Aggarwal. Based on periodic Daubechies wavelet coefficients feature of the description function, the global matching problem and the local matching problem of the contour curve are discussed. To meet the needs of fast recognizing target and accurately distinguishing object, we propose a simple matching model and an accurate matching model for our method. Experiments indicate good stability and reliability of our method and they also show real time ability of fast wavelet algorithm used in the model.