Segmentation of objects in a video is challenging due to the nuances such as
motion blurring, parallax, occlusions, changes in illumination, etc. Instead of
addressing these nuances separately, we focus on building a generalizable
solution that avoids overfitting to the individual intricacies. Such a solution
would also help us save enormous resources involved in human annotation of
video corpora. To solve Video Object Segmentation (VOS) in an unsupervised
setting, we propose a new pipeline (FODVid) based on the idea of guiding
segmentation outputs using flow-guided graph-cut and temporal consistency.
Basically, we design a segmentation model incorporating intra-frame appearance
and flow similarities, and inter-frame temporal continuation of the objects
under consideration. We perform an extensive experimental analysis of our
straightforward methodology on the standard DAVIS16 video benchmark. Though
simple, our approach produces results comparable (within a range of ~2 mIoU) to
the existing top approaches in unsupervised VOS. The simplicity and
effectiveness of our technique opens up new avenues for research in the video
domain.

我们在视频中对象的分割问题上提出了一种新的管道（FODVid），它基于使用流引导图割和时间一致性的思想来引导分割输出，通过设计一个融合了帧内外观和流相似性以及帧间对象时间持续性的分割模型，我们的方法在无监督的视频对象分割中取得了与现有顶级方法相当的结果（在 mIoU 范围内相差约 2 个单位），我们技术的简单性和效果为视频领域的研究开辟了新的研究途径。