Scene flow estimation, which extracts point-wise motion between scenes, is
becoming a crucial task in many computer vision tasks. However, all of the
existing estimation methods utilize only the unidirectional features,
restricting the accuracy and generality. This paper presents a novel scene flow
estimation architecture using bidirectional flow embedding layers. The proposed
bidirectional layer learns features along both forward and backward directions,
enhancing the estimation performance. In addition, hierarchical feature
extraction and warping improve the performance and reduce computational
overhead. Experimental results show that the proposed architecture achieved a
new state-of-the-art record by outperforming other approaches with large margin
in both FlyingThings3D and KITTI benchmarks. Codes are available at
this https URL.

本文提出了使用双向流嵌入层的新型场景流估计体系结构，它学习了前向和后向方向的特征，增强了估算性能。实验结果表明，在 FlyingThings3D 和 KITTI 基准测试中，该体系结构表现非常优异，与其他方法相比具有明显的优势，并且通过代码已经得到验证。