Zhengyang Feng

> Can we use an equation, perhaps involving the final TP, FN, and FP values, to determine the True Negatives (TN) at the conclusion of an evaluation, ensuring a balanced...

> Would it be more accurate to replace the fixed value 4 with the length of the ground truth (len(gt))?" yes. You sure the equation is correct?

> I'm not 100% sure, but I got a reasonable value for TN while training the Ultra Fast lane detection model on a small TuSimple subset. I calculated it by...

@CSenthusiast01 On second thought, I don't think TN is well-defined here. Since we only have positive GT.

@CSenthusiast01 Unfortunately, there is no definition of GT negatives in a typical detection task. It does not affect the calculation of common metrics like F1. Confusion matrix is more of...

cc @clcarwin

This issue seems to be addressed. I'll close it for now. Feel free to continue commenting for reopen/open a new one.

This issue seems to be addressed. I'll close it for now. Feel free to continue commenting for reopen/open a new one.

@mengxia1994 Just to be sure, what is the format of your seg label, is it png single channel? And which line of code yielded that error message?

I'm guessing your labels are one-hot, in which case you need to turn them to their argmax. Or it is duplicated at the last dimension?