计算机科学 ›› 2019, Vol. 46 ›› Issue (11A): 241-245.
杜娟, 沈思昀
DU Juan, SHEN Si-yun
摘要: 立体视觉的核心问题是通过立体匹配算法获得准确的视差值,然而大多数现有的立体匹配算法无法在低纹理或接近无纹理的区域中获得准确的视差值。为了解决低纹理区域匹配精度相对偏低、高精度半全局匹配算法运算量较大的问题,文中提出了一种基于自适应滑动窗口的立体匹配算法。首先通过AD-Census变换计算匹配代价,然后针对不同区域调节聚合窗口形状及像素点权重,最后结合符合人体视觉特征的多尺度代价聚合框架获得聚合匹配代价,采用赢者通吃策略获取最终的稠密视差图。实验结果证明,该算法在低纹理区域的误匹配率相比较传统方案的下降范围为5.8%~21.68%,运算时间较半全局算法更短。
中图分类号:
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