Processing the custom dataset with only four vertices

[Eurus-Holmes]

Hi, thanks for your great work! But when I train my own models on the custom dataset with only four vertices, following the example scripts, the output result is weird.

In that case, locations are annotated in terms of polygons with four vertices, which are in clockwise order starting from the upper left vertice. But in the paper, the Total-Text has GT of 10 annotated points and CTW1500 has GT of 14 annotated points. How should I fix it?

[Yuliang-Liu]

That should be same as discussed in #92.

[Eurus-Holmes]

@Yuliang-Liu Hi, I noticed this issue, do you mean I need to interpolate a few control points in two trisections of the long side so that the label has 10 points or 14 points, to generate Bezier curve and train.json?

[Eurus-Holmes]

@Yuliang-Liu Hi, I don't think it's right by interpolating a few control points in two trisections of the long side so that the label has 10 points or 14 points, to generate the Bezier curve.

For example, the above image label is:

"lines": [{"ignore": 0, "transcription": "HOKI", "points": [23, 173, 327, 180, 327, 290, 23, 283]}, {"ignore": 0, "transcription": "TEA", "points": [368, 180, 621, 180, 621, 294, 368, 294]}]

I interpolate 10 points so that the label has 14 points as the same as the CTW1500, the new label is:

"lines": [{"ignore": 0, "transcription": "HOKI", "points": [23.0, 173.0, 31.444444444444443, 173.19444444444446, 39.888888888888886, 173.38888888888889, 48.33333333333333, 173.58333333333331, 56.77777777777777, 173.77777777777777, 65.22222222222221, 173.97222222222223, 73.66666666666666, 174.16666666666666, 124.33333333333333, 175.33333333333334, 132.77777777777777, 175.52777777777777, 141.22222222222223, 175.72222222222223, 149.66666666666666, 175.91666666666669, 158.11111111111111, 176.11111111111111, 166.55555555555554, 176.30555555555554, 175.0, 176.5]}, {"ignore": 0, "transcription": "TEA", "points": [368.0, 180.0, 375.02777777777777, 180.0, 382.05555555555554, 180.0, 389.08333333333337, 180.0, 396.11111111111114, 180.0, 403.1388888888889, 180.0, 410.1666666666667, 180.0, 452.3333333333333, 180.0, 459.3611111111111, 180.0, 466.38888888888886, 180.0, 473.41666666666663, 180.0, 480.44444444444446, 180.0, 487.47222222222223, 180.0, 494.5, 180.0]}]

But by generating Bezier curve, output result is:

I wonder how could I generate such a result?

[Eurus-Holmes]

@Yuliang-Liu I found in the CTW1500, the label is in clockwise order starting from the lower left vertice. However, my label in counterclockwise order starting from the upper left vertice.

I have changed and solved it.

Thanks!