| 摘要 |
The invention relates to means for measuring picture quality of various types of visual pictures and documents using optical pattern recognition. The means comprises an optical recognition equipment with adapted recognition sensitivity and an algorithm for calculation and analysis of error frequencies, together with a test pattern. The invention enables measuring an unknown test object, a picture or a document, using e.g. an OCR program with adapted recognition sensitivity in a reliable way with respect to readability and resolution. |
