We present a novel framework for domain adaptation, whereby both geometric
and statistical differences between a labeled source domain and unlabeled
target domain can be integrated by exploiting the curved riemannian ge
使用正定对称 (SPD) 矩阵表示图像和视频,并考虑到所得空间的里曼尼几何,已被证明在许多识别任务中有益。本文引入了一种方法来构建一个更具判别力的低维 SPD 流形以处理高维 SPD 矩阵,并将学习表述为 Grassmann 流形上的优化问题。实验表明,与现有技术相比,我们的方法可使分类准确性显著提高。