Bildverarbeitungsvorrichtung, Bildverarbeitungsverfahren und Programm

Details

Veröffentlichungs-Nr.

EP3416099

Aktenzeichen

EP18176947

Anmeldetag

11. Juni 2018

Veröffentlichung

20. November 2024

Erteilung

20. November 2024

Rechtsraum

EP

IPC

G06V10/75G06V30/412H04N1/387

Abstract

It is possible to calculate transformation parameters used for image combining with a small error and to reduce a distortion that appears in a combined image The image processing apparatus includes: a feature point extraction unit (105) configured to extract feature points corresponding to each other between both images from each of a first image and a second image, which are images obtained by capturing a paper document and whose captured ranges are different from each other; an edge extraction unit (106) configured to extract edges corresponding to each other between both images from each of the images; a vanishing point detection unit (104) configured to detect a vanishing point of a plane to which the paper document belongs from each of the images; a transformation parameter derivation unit (107) configured to derive transformation parameters for image combining by using coordinates corresponding to intersections of straight lines connecting the feature points and the vanishing point, and the edges; and an image combining unit (108) configured to combine the first image and the second image by using the transformation parameters.

Anmelder

Firma

CANON KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete