US 2011/0211755 A1 · METHOD AND APPARATUS FOR DETECTING PAGE BOUNDARIES

Abstract

The present invention discloses a method and apparatus for detecting page boundaries which are capable of accurately detecting complete page boundaries and dealing with many kinds of complex conditions. The method comprises: an edge image detecting step for detecting an edge image from the book document image; a horizontal page boundary detecting step for detecting top page boundaries and bottom page boundaries on the edge image; a binding center line detecting step for detecting the binding center line by searching an intersection point of the left page and the right page on the top page boundaries and the bottom page boundaries; a page width determining step for determining the page width of the book document image; and a vertical page boundary determining step for determining the left page boundary and the right page boundary by using the top page boundaries, the bottom page boundaries, the binding center line and the page width.

Claims14

Dependent claims

A method for detecting page boundaries of a book document image, comprising:

an edge image detecting step for detecting an edge image from the book document image;
a horizontal page boundary detecting step for detecting top page boundaries and bottom page boundaries on the edge image;
a binding center line detecting step for detecting the binding center line by searching an intersection point of the left page and the right page on the top page boundaries and the bottom page boundaries;
a page width determining step for determining the page width of the book document image;
and
a vertical page boundary determining step for determining the left page boundary and the right page boundary by using the top page boundaries, the bottom page boundaries, the binding center line and the page width.

3 more elements

An apparatus for detecting page boundaries of a book document image, comprising:

an edge image detecting means for detecting an edge image from the book document image;
a horizontal page boundary detecting means for detecting top page boundaries and bottom page boundaries on the edge image;
a binding center line detecting means for detecting the binding center line by searching an intersection point of the left page and the right page on the top page boundaries and the bottom page boundaries;
a page width determining means for determining the page width of the book document image;
and
a vertical page boundary determining means for determining the left page boundary and the right page boundary by using the top page boundaries, the bottom page boundaries, the binding center line and the page width.

3 more elements

Dependencies are inferred from the claim text.

Method and apparatus for detecting page boundaries

Life of this patent

Method and apparatus for detecting page boundaries

Life of this patent

Abstract

Claims14