专栏名称: 机器学习研究会

机器学习研究会是北京大学大数据与机器学习创新中心旗下的学生组织，旨在构建一个机器学习从事者交流的平台。除了及时分享领域资讯外，协会还会举办各种业界巨头/学术神牛讲座、学术大牛沙龙分享会、real data 创新竞赛等活动。

【推荐】MIT\/Facebook出品的面向行为识别与定位的视频数据集SLAC

机器学习研究会 · 公众号 · AI · 2017-12-29 22:41

正文

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摘要

转自：爱可可-爱生活

This project presents a novel video dataset, named SLAC (Sparsely Labeled ACtions), for action recognition and localization. It consists of over 520K untrimmed videos and 1.75M clip annotations spanning 200 action categories. Using our proposed framework, annotating a video clip takes merely 8.8 seconds on average, representing a saving in labeling time of over 95% compared to the traditional procedure of manual trimming and localization of actions. We show that our large-scale dataset can be used to effectively pretrain action recognition and detection models, significantly improving final metrics on smaller-scale benchmarks after fine-tuning, eg. HMDB-51, UCF-101, ActivityNet, Kinetics.