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Is small size(320 or 384) of input image and one step bbox regression harmful for localization? #9

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xmyqsh opened this issue Aug 27, 2017 · 1 comment

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@xmyqsh
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xmyqsh commented Aug 27, 2017

Is small size(320 or 384) of input image and one step bbox regression harmful for localization?
If so, how to overcome it?

I notice that your fc6_conv do a big favor on the receptive field or content info, which will merge into fine featuremap.
And image pyramid instead of feature pyramid(roi-pooling).
And Objectness Prior to overcome the imbalance of object samples.

@taokong
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taokong commented Aug 27, 2017

@xmyqsh
Input image with small size decreases the detection accuracy, but it makes the detector much faster. As for location, I believe one step bbox regression could also get competitive results. If you are more concern about accuracy, you could make the input size larger, such as 448/512.

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