what's fine-grained visual information?

[7827...@qq.com]

i encounter “fine-grained visual information” in paper YOLO, it say detection requires it. the original word is "Detection often requires fine-grained visual information" ,but i don't understand what fine-grained visual information is. Plz someone could give me an answer,thank you very much

[Shyam Nandan Rai]

Hi,

The main motive of the author by saying 'fine -grained visual information' is some time the desired object that is to be detected is small, so it is hard for the network to detect it(as the image passes through network the object feature information can be lost after pooling or relu layer). So , it is preferred to rescale the image so that tiny objects of the image can be extracted.

[7827...@qq.com]

thank you very much

在 2017年4月20日星期四 UTC+8上午3:29:41，Shyam Nandan Rai写道：