These slides include the answers for the following questions: - What is OCR? - Why do we need it? - Why is it difficult? - Comparison between OCR & object detections - Three approaches for text localization - Three approaches for text recognition Videos are also available from the below: (Korean) https://youtu.be/ckRFBl_XWFg (English) coming soon [Reference] Hwalsuk Lee, https://www.slideshare.net/deview/111-ai