Caffe: what's the difference between SSD500 and SSD512?

Created on 8 Oct 2016  ·  4Comments  ·  Source: weiliu89/caffe

Hi, @weiliu89
I noticed that you method on PASCAL VOC Challenge 2012 is SSD512,so what's the difference between SSD500 and SSD512? Is there just resized image size or there are something else different?

Most helpful comment

512 is just nice because every time you decrease size by 2. Result wise, it should be similar to 500 if everything else is same.

Actually I just updated the SSD512 (with COCO) result today. It has 82.2 mAP on VOC2012 test with single model on a single image and no post-processing steps. It has the following major change:

  1. no pool6, every additional layers are convolutional.
  2. color distortion
  3. expand the image to get more smaller training examples.
  4. not clipping the prior box at the boundary.

I will update the arXiv paper later.

All 4 comments

512 is just nice because every time you decrease size by 2. Result wise, it should be similar to 500 if everything else is same.

Actually I just updated the SSD512 (with COCO) result today. It has 82.2 mAP on VOC2012 test with single model on a single image and no post-processing steps. It has the following major change:

  1. no pool6, every additional layers are convolutional.
  2. color distortion
  3. expand the image to get more smaller training examples.
  4. not clipping the prior box at the boundary.

I will update the arXiv paper later.

excellent!
looking forward to that.

@weiliu89 hello, can you provide the SSD512 python script training on coco ?thank you

@yanxp I will provide the code later.

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