| 摘要 |
The invention relates to the optical detection of symbols (4) displayed on a display (2), wherein image data which contains a representation of the display (2) is obtained, comprising the steps: detection (29, 30) of a display area of the display (2) in the image data obtained; preparation (32) of the image data representing the display area detected; performance of an optical symbol detection (34, 35) by using the prepared image data; and storage of the symbol detected during the optical symbol detection (34, 35) in a memory (13). |
