MARKER FOR OCCLUDING FOREIGN MATTER IN ACQUIRED IMAGE, METHOD FOR RECOGNIZING FOREIGN MATTER MARKER IN IMAGE AND BOOK SCANNING METHOD

摘要

The invention discloses a marker for occluding a foreign matter in an acquired image, which comprises a mark part whose surface is provided with a two-side continuous pattern formed by combining at least one or multiple primitives; and a fixing part which fixes a marker to a surface of foreign matter in an acquired target to make a surface of the foreign matter in the acquired image covered by the mark part to facilitate algorithm recognition and marking. The method for recognizing a foreign matter marker in an image comprises the following steps: performing edge detection on a planar image to acquire an edge map in the planar image; and extracting all contours in the edge map. A certain number of alternative straight-line segments are determined by means of an algorithm; a region is determined according to the position of each alternative straight-line segment; and finally the region of the approximate area above or below the marker is used. The book scanning method comprises: extending to the image range of the marker, and finally removing the marker image of the marker of a current page to complete the scanning of the current page.