What is the specification of annotation and how to create the dataset?

[shizidushu]

I want to create my custom dataset for training with DeepSolo. But I don't know how to do it.

I know there is a tool called PPOCRLabel provided by PaddleOCR to create label for OCR task. But I don't know how to convert the labels to the format used by DeepSolo. Is there already someone has script to do the converting?

Can you provide some information about the label format used? I want to know the specification so I may write converter by myself.

Is there any other data labelling tools (not PPOCRLabel) to be suggested?