摘要： 提出一种基于Sobel算子特征点检测的快速空间变换模型计算方法。利用Sobel算子对边缘的敏感特性生成Sobel描述器,进行特征点的描述和匹配,并运用PROSAC算法快速消除误匹配,从而计算出空间变换模型。实验结果表明,算法采用简单的Sobel算子组合成描述器,快速提取出了图像中的特征点,并且根据相似性描述器准确地进行了特征点匹配,提高了空间变换模型的计算速度,为增强现实和图像拼接等视觉领域应用提供了前提[1,2]。
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