Title:
VIDEO GENERATION DEVICE, VIDEO GENERATION METHOD, PROGRAM, AND DATA STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/198570
Kind Code:
A1
Abstract:
In order to lift a region included in a real object from a background and automatically generate a shadow image that gives the illusion that the apparent height of said region relative to the background region appears to change over time, this video generation device has as inputs therefor: a dark region image including a dark region being a spatial region corresponding to a target and being darker than the background; and control information that specifies movement to be applied to the dark region. A video is obtained and output that includes a shadow region obtained by performing mask processing on a moving region obtained by applying movement to the dark region in accordance with the control information, said mask processing replacing pixels in a mask region at a spare position corresponding to the target with lighter pixels than the moving region. By superimposing an output video corresponding to this video on to a real object, an observer viewing the real object having the output video superimposed thereon has the illusion that the target region included in the real object corresponding to the target is lifted from the background region and the apparent height of the target region, relative to the background region, changes over time.
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Inventors:
KAWABE TAKAHIRO (JP)
Application Number:
PCT/JP2019/014645
Publication Date:
October 17, 2019
Filing Date:
April 02, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04N13/122; G09G5/00; G09G5/10; G09G5/36; H04N13/363
Domestic Patent References:
| WO2015163317A1 | 2015-10-29 |
Foreign References:
| JP2017163373A | 2017-09-14 | |||
| JP2018050216A | 2018-03-29 |
Other References:
KAMIYA, AYUMI ET. AL.: "Perceived motion in depth of background surface induced by dynamic cast shadow--Effects of background motion and numbre of objects", THE VIRTUAL REALITY SOCIETY OF JAPAN, 9TH ANNUAL CONFERENCE PROCEEDINGS, 10 September 2004 (2004-09-10), pages 203 - 206
KITAJIMA, NORIYUKI ET. AL.: "Interaction of Perceived Depths by Binocular Disparity and Cast Shadow", JOURNAL OF THE INSTITUTE OF IMAGE INFORMATION AND TELEVISION ENGINEERS, vol. 56, no. 11, 1 November 2002 (2002-11-01), pages 1795 - 1802, ISSN: 1342-6707
KAWABE, TAKAHIRO: "Ukuzo-A projection mapping technique to give illusory depth impressions to two-dimensional real objetcs", NTT TECHNICAL REVIEW, vol. 30, no. 9, 1 September 2018 (2018-09-01), pages 20 - 23, XP055641930, ISSN: 0915-2318
KITAJIMA, NORIYUKI ET. AL.: "Interaction of Perceived Depths by Binocular Disparity and Cast Shadow", JOURNAL OF THE INSTITUTE OF IMAGE INFORMATION AND TELEVISION ENGINEERS, vol. 56, no. 11, 1 November 2002 (2002-11-01), pages 1795 - 1802, ISSN: 1342-6707
KAWABE, TAKAHIRO: "Ukuzo-A projection mapping technique to give illusory depth impressions to two-dimensional real objetcs", NTT TECHNICAL REVIEW, vol. 30, no. 9, 1 September 2018 (2018-09-01), pages 20 - 23, XP055641930, ISSN: 0915-2318
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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