How to modify the size of anchor?

Hi mvoelk,

Thanks for your excellent work.

About the TBPP_train code, I'm confused that how do you generate anchor boxes on different feature maps. I didn't find an explicit method in your code about designing thoes boxes. I've looked through other version about SSD, and all of they almost provide a custom way to modify the size of anchor box like a config file or something. And the reason why I concern this is in my project, I need to detect a whole line text. And the aspect ratio has a lot of variation from 5 to 20, almost evenly distributed. So for a better perfomance on both precision and recall, I may need to modify the anchor size frequently. And about this issue, could you give me some advice? Any help will be appreaticed !

Best,
Xiyuan

aspect_ratio and scale in ssd_utils.py PriorUtil and PriorMap...

You can also set the values as attributes of the model object

ssd_detectors/tbpp_model.py

Line 101 in 257ae27

model.aspect_ratios = [[1,2,3,5,1/2,1/3,1/5] * 2] * num_maps

The PriorMap class has an method plot_boxes for visualizing the prior boxes.

In general, it makes sense to think about the receptive field when designing the prior boxes.

Why don't you use SegLink, you don't have the issue with the aspect ratio?

Why don't you use SegLink, you don't have the issue with the aspect ratio?

Thanks for replying!

I just want to evaluate all classic text detect methods like TB, TB++ and Seglink etc. I want to find an algorithm that is balanced in accuracy and speed. And yeah I'll try anchor free model next.