| 摘要 |
The invention relates to a document bearing an image or a text, broken down into a large number of elementary areas with which are associated respectively a large number of indexes. According to the invention, each index includes a group of dots (10) placed on the document in the vicinity of the associated elementary area and forming a specific code for the said area, the indexes as a whole forming a location frame covering the said image or the said text and superimposed thereupon, each group of dots being readable by optical reading means cooperating with a data processing system comprising a data medium addressable by means of the said indexes.
|
