The key component is a technology called Optical Character Recognition, or OCR.

关键是一种称为光学字符识别（OCR）的技术。

Whenever there is text on like a sweater or cookie wrapper, depending on the pose and the angle, it might be more challenging and difficult to extract the right OCR.

每当有文字时，比如毛衣或饼干包装纸，根据姿势和角度，提取正确的 OCR 可能会更具挑战性和难度。