Quo Vadis, Action Recognition? A New Model and the Kinetics Dataset
2017-09-11 15:04
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时光荏苒,岁月如梭,恍惚间,一道白光闪现,空中一尊大佛低声喃语:小伙子,你,是不是太久没读论文了!于是,我开始补论文。简略记下,防止忘掉。
本文是deepmind出品,目的,就一个,放出个关于视频方面的训练集kinetics,一个四百个类,每个类有至少四百个clips,每个clips十秒钟,属于从youtube上剪切的视频,然后对比了几种现在存在的用于行为识别的几种框架,具体如下图:
其中,a,b,c,d是现有的做法,作者提出了e,唉,这种框架 ,感觉有点和前面没啥区别。然后,神奇的事情出现了:这个数据集上训练的模型,通过迁移学习到UCF101和HMDB51上,准确率惊人。
具体的网络:
做了如下几个事情:
第一:卷积核和pooling的核由二维扩展到三维。
第二:大的数据视频数据集上训练。
第三:迁移到UCF101,HMDB51,识别结果好。
实验结果:
是不是很惊喜,是不是,是不是,你收集的数据集,当然你说了算。
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