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arXiv 2003.06125cs.CV
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基于双时间记忆网络的视频对象分割

Dual Temporal Memory Network for Efficient Video Object Segmentation

Nanjing University of Information Science and Technology(南京信息工程大学);Netflix Inc.(网飞公司);JD Digits(京东数科);University of Missouri-Kansas City(密苏里大学堪萨斯城分校)

Kaihua Zhang, Long Wang, Dong Liu, Bo Liu, Qingshan Liu, Zhu Li

摘要:

视频对象分割(VOS)通常在半监督设置中制定。给定第一帧上的地面实况分割掩模,VOS的任务是在像素级上跟踪和分割视频的其余帧中的单个或多个感兴趣对象。VOS的一个基本挑战是如何最大限度地利用时态信息来提高性能。我们提出了一个端到端的网络,它存储的短期和长期的视频序列信息之前的当前帧作为临时记忆,以解决在VOS的时间建模。我们的网络由两个时间子网络组成,包括短期记忆子网络和长期记忆子网络。短期记忆子网络通过基于图的学习框架对视频中相邻帧之间的局部区域之间的细粒度时空交互进行建模,可以很好地保持局部区域随时间的视觉一致性。长期记忆子网络通过简化门控递归单元(S-GRU)模拟对象的长期演化,使分割对遮挡和漂移错误具有鲁棒性。在我们的实验中,我们表明我们提出的方法在三个常用的VOS数据集上实现了良好的和有竞争力的性能,包括DAVIS 2016,DAVIS 2017和Youtube-VOS在速度和准确性方面。

英文摘要:

Video Object Segmentation (VOS) is typically formulated in a semi-supervised setting. Given the ground-truth segmentation mask on the first frame, the task of VOS is to track and segment the single or multiple objects of interests in the rest frames of the video at the pixel level. One of the fundamental challenges in VOS is how to make the most use of the temporal information to boost the performance. We present an end-to-end network which stores short- and long-term video sequence information preceding the current frame as the temporal memories to address the temporal modeling in VOS. Our network consists of two temporal sub-networks including a short-term memory sub-network and a long-term memory sub-network. The short-term memory sub-network models the fine-grained spatial-temporal interactions between local regions across neighboring frames in video via a graph-based learning framework, which can well preserve the visual consistency of local regions over time. The long-term memory sub-network models the long-range evolution of object via a Simplified-Gated Recurrent Unit (S-GRU), making the segmentation be robust against occlusions and drift errors. In our experiments, we show that our proposed method achieves a favorable and competitive performance on three frequently-used VOS datasets, including DAVIS 2016, DAVIS 2017 and Youtube-VOS in terms of both speed and accuracy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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