OCR-free Document Understanding Transformer. (arXiv:2111.15664v2 [cs.LG] UPDATED)

Understanding document images (e.g., invoices) is a core but challenging task
since it requires complex functions such as reading text and a holistic
understanding of the document. Current Visual Document Understanding (VDU)
methods outsource the task of reading text to off-the-shelf Optical Character
Recognition (OCR) engines and focus on the understanding task with the OCR
outputs. Although such OCR-based approaches have shown promising performance,
they suffer from 1) high computational costs for using OCR; 2) inflexibility of
OCR models on …

arxiv document understanding free lg ocr transformer understanding