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tianyu0207 avatar tianyu0207 commented on July 17, 2024

有以下几个问题向您请教:
1、我复现出来的ShanghaiTech结果只有96%左右,没有修改任何代码,不知道什么原因;
2、crop的次数对识别率的影响特别大,我从测试集中的10次crop中随机取出一次crop来测试,识别率降到了88%左右;
3、和其他论文比较的识别率的时候,RTFM是做过10crop来训练和测试的,但是请问其他论文也做过10次crop吗?如果没有的话,那就有失公平了。
4、在Nvidia 2080Ti的inference time=0.76s,请问这个时间是10次crop的总时间还是单次crop的时间?
5、由于RTFM采用的多尺度技术,因此对于一段视频,如果有N个16帧的clips,最好的方式是这个N个clip全部输入到网络里识别是最好的,也正如测试代码所示,clips越少识别率越低。如果视频中的的N个clips单独测试,识别率也非常低,会降到80%左右。那么在实时监控的时候,每次就应该输入32个clips才能达到可以接受的识别率,但是这种方式,会导致实时性严重下降,甚至不可用。

there might be some auc differences between different computers and different runs.

In the previous papers, 'Not only Look, but also Listen: Learning Multimodal Violence Detection under Weak Supervision' and
'Graph Convolutional Label Noise Cleaner: Train a Plug-and-play Action Classifier for Anomaly Detection'. They all use 10-crop. Some of the other papers did not provide code. So I'm not sure with them though...

The time should be the one for single-cropped images. For question 5, I agree that it will harm some of the efficiency of the method when use more clips as input.

from rtfm.

wuqiangch avatar wuqiangch commented on July 17, 2024

@tianyu0207 Thanks!

from rtfm.

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