The rotations of some word bounding boxes do not line up properly with the word itself.

[cjnolet]

It's strange and it happens quite often, maybe 20% of the time. It usually occurs when a word is rotated itself or has been projected onto a surface causing it to have a strange dimension. Thing is, though, it does not only happen on extreme projections. It also happens on only slightly projected text. It makes it hard for the fully convolutional network to converge well on the sin/cos pose params.

[ankush-me]

Can you please share some pictures? That'll help understand this problem better.

[cjnolet]

Unfortunately, I'm on a private network creating these images and they will not allow me to release them. They will allow me to help out fixing bugs and stuff, however.

Anyways, I've finally gotten some time to code up a visualization of each of the character bounding boxes and the final word bounding boxes that are generated. It looks like there is an empty character being drawn on the canvas. Literally it's blank and it ends up returning a 0-width bounding box which has a pretty large height. I believe that is throwing off the calculation of the final word bounding box dimensions.

I already know some of the fonts are having trouble drawing some of the characters in this language but that's so strange it's returning a 0-width bounding box. Many of the other fonts / bad characters just show up as an empty square.

[IgorSondors]

This problem occurs because of pygame render_to rotating character image within bounding box only but not rotating bounding box itself. Check this line

SynthText/text_utils.py

Line 196 in e18aaf9

ch_bounds = font.render_to(surf, rect, word_text[mid_idx], rotation=rots[mid_idx])

The is an example

[ankush-me]

@IgorSondors --- thanks! If you can share a patch for this, that would be great!