| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for generating microfine intrinsic features that identify contents of rendering documents. SOLUTION: Image-based techniques are applied irrespective of a file format electrically generated by a rendered document to identify patterns of the rendered document by an electronic document rendering system. Applying the image-based techniques includes: i in which an electric processor identifies a location of a local key point candidate of the document; and ii in which the electric processor combines the location of the key point candidate to form the microfine intrinsic features that identify the pattern showing contents of the document. COPYRIGHT: (C)2011,JPO&INPIT |
