Linking local and global optical flow computation by subspace regularization
Linking local and global optical flow computation by subspace regularization
复制标题
通过子空间正则化连接局部和全局光流计算
DOI：
10.1117/1.oe.52.3.037205
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发表时间：
2013-03
影响因子：
1.3
通讯作者：
Brooks, Michael
中科院分区：
文献类型：
--
作者：
牛砚 （第一作者兼通讯作者）;Dick, Anthony;Brooks, Michael
摘要。传统的光流计算方法分为局部和光流计算方法和全局光流计算方法。以前的一些作品通过利用它们的互补效应来研究它们的组合。与以往的研究不同，本文利用这两种方案的共同弱点，提出了通过子空间正则化将局部和全局计算联系起来的方法。我们将证明子空间正则化可以有效地减少由病态局部计算系统引起的误差，同时抑制全局正则化所遭受的误差扩散。在基准序列上的实验结果验证了该组合方案的增强性能。
Abstract. Optical flow computation methods are traditionally classified to two categories: local and global. Several previous works have investigated the combination of them by exploiting their complementary effects. Unlike previous works, this paper is motivated by the common weakness of the two schemes and proposes linking local and global computation by subspace regularization. We will show that the subspace regularization can effectively reduce the error caused by ill-conditioned local computation systems, while inhibiting error diffusion suffered by the global regularization. Experimental results on benchmark sequences validate the enhanced performance of the proposed combination scheme.