Title:
COMMUNICATION DEVICE, COMMUNICATION SYSTEM, DATA COMMUNICATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/198646
Kind Code:
A1
Abstract:
The present invention implements a communication configuration that enables communication data in an image to be acquired without performing high-accuracy synchronous processing. A transmission device comprises a projector for performing image output, and an output image generation unit for generating a projector output image. The output image generation unit generates a communication data image in which communication data are recorded, and the projector sets the output period of the communication data image to be longer than the output period of a subframe image constituting a viewing image, and outputs the communication data image. A reception device detects an event having a brightness change greater than or equal to a predetermined threshold value, receives input of event information comprising the pixel position and occurrence time of an event occurrence pixel, detects the communication data image included in a projected image on the basis of an event occurrence interval, and acquires the communication data from the communication data image.
Inventors:
NARITA GAKU (JP)
Application Number:
PCT/JP2018/012521
Publication Date:
November 01, 2018
Filing Date:
March 27, 2018
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04B10/116; H04N5/74
Other References:
HIRAKI, TAKEFUMI ET AL.: "Reconfigurable Pixel-level Visible Light Communication with Light Source Control", TRANSACTIONS OF THE VIRTUAL REALITY SOCIETY OF JAPAN, vol. 21, no. 1, 11 June 2016 (2016-06-11), pages 197 - 206, XP055537180, [retrieved on 20180608]
KITAMURA, MASAHIKO ET AL.: "Position-Dependent Visible Light Communication : Projecting Meta-Media Data along with Visual Images", TRANSACTIONS OF THE VIRTUAL REALITY SOCIETY OF JAPAN, vol. 12, no. 3, 8 June 2018 (2018-06-08), pages 381 - 388, XP055537186, Retrieved from the Internet
ZHOU, LEIJIE ET AL.: "Dynamically reconfigurable framework for pixel-level visible light communication projector", SPIE, 7 March 2014 (2014-03-07), pages 89790J, XP055537190, [retrieved on 20180608]
KIMURA, SHO ET AL.: "A study on interaction with projected image using pixel-level visible light communication projector", MASTER'S THESIS OF GRADUATE SCHOOL OF INFORMATION SCIENCE AND TECHNOLOGY, 4 February 2008 (2008-02-04), pages 24 - 35, Retrieved from the Internet
KITAMURA, MASAHIKO ET AL.: "Position-Dependent Visible Light Communication : Projecting Meta-Media Data along with Visual Images", TRANSACTIONS OF THE VIRTUAL REALITY SOCIETY OF JAPAN, vol. 12, no. 3, 8 June 2018 (2018-06-08), pages 381 - 388, XP055537186, Retrieved from the Internet
ZHOU, LEIJIE ET AL.: "Dynamically reconfigurable framework for pixel-level visible light communication projector", SPIE, 7 March 2014 (2014-03-07), pages 89790J, XP055537190, [retrieved on 20180608]
KIMURA, SHO ET AL.: "A study on interaction with projected image using pixel-level visible light communication projector", MASTER'S THESIS OF GRADUATE SCHOOL OF INFORMATION SCIENCE AND TECHNOLOGY, 4 February 2008 (2008-02-04), pages 24 - 35, Retrieved from the Internet
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (JP)
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