(19)
(11) EP 2 908 531 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
28.10.2015 Bulletin 2015/44

(43) Date of publication:
19.08.2015 Bulletin 2015/34

(21) Application number: 13845961.5

(22) Date of filing: 09.10.2013
(51) International Patent Classification (IPC): 
H04N 19/50(2014.01)
 H04N 13/02(2006.01)
(86) International application number:
PCT/JP2013/077515
(87) International publication number:
WO 2014/057988 (17.04.2014 Gazette 2014/16)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 12.10.2012 JP 2012227261

(71) Applicant: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
Tokyo 184-8795 (JP)

(72) Inventors:
  • PANAHPOUR TEHRANI, Mehrdad
    Koganei-shi Tokyo 184-8795 (JP)
  • ISHIKAWA, Akio
    Koganei-shi Tokyo 184-8795 (JP)
  • KAWAKITA, Masahiro
    Koganei-shi Tokyo 184-8795 (JP)
  • INOUE, Naomi
    Koganei-shi Tokyo 184-8795 (JP)
  • FUJII, Toshiaki
    Nagoya-shi Aichi 464-8601 (JP)

(74) Representative: Kuhnen & Wacker 
Patent- und Rechtsanwaltsbüro Prinz-Ludwig-Straße 40A
85354 Freising
85354 Freising (DE)

   


(54) DEVICE, PROGRAM, AND METHOD FOR REDUCING DATA SIZE OF MULTIPLE IMAGES CONTAINING SIMILAR INFORMATION, AND DATA STRUCTURE EXPRESSING MULTIPLE IMAGES CONTAINING SIMILAR INFORMATION


(57) Provided is a method for reducing data size of a plurality of images containing mutually similar information. The present method includes the steps of: generating a synthesized image corresponding to a target image based on a first reference image and a second reference image; generating a mask image indicating a potential error of the synthesized image with respect to the target image from the first reference image and the second reference image; generating a residual image in accordance with a difference between the target image and the synthesized image; generating a converted image corresponding to the target image by assigning, based on the mask image, a region where the potential error is relatively large, information on a corresponding region of the residual image; and outputting the first reference image, the second reference image and the converted image as information representing the target image, the first reference image and the second reference image.