Title:
PREDICTION VECTOR GENERATION DEVICE, IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, PREDICTION VECTOR GENERATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2014/010464
Kind Code:
A1
Abstract:
This prediction vector generation device, which generates a prediction vector of a parallax vector of a subject block in a non-standard-viewpoint image, is characterized by being provided with: a conversion pixel determination unit that determines at least one pixel position within a depth block corresponding to the subject block and in a depth map corresponding to a non-standard viewpoint image; a parallax vector conversion unit that calculates a representative value for the depth value of the pixel position determined by the conversion pixel determination unit, and converts the representative value to a parallax vector; and a prediction vector determination unit that, using the parallax vector generated by the parallax vector conversion unit, generates a prediction vector for the parallax vector of the subject block. As a result, it is possible to provide a prediction vector generation device that obtains favorable encoding efficiency and has a suppressed increase in computation volume.
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Inventors:
UCHIUMI TADASHI
IKAI TOMOHIRO
YAMAMOTO YOSHIYA
IKAI TOMOHIRO
YAMAMOTO YOSHIYA
Application Number:
PCT/JP2013/068101
Publication Date:
January 16, 2014
Filing Date:
July 02, 2013
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04N7/32
Domestic Patent References:
| WO2008053758A1 | 2008-05-08 |
Foreign References:
| JP2012080242A | 2012-04-19 |
Other References:
SHIN'YA SHIMIZU ET AL.: "Efficient Multi- view Video Coding using Multi-view Depth Map", THE JOURNAL OF THE INSTITUTE OF IMAGE INFORMATION AND TELEVISION ENGINEERS, vol. 63, no. 4, 1 April 2009 (2009-04-01), pages 524 - 532
WENYI SU ET AL.: "Depth-based motion vector prediction in 3D video coding", PICTURE CODING SYMPOSIUM (PCS), 7 May 2012 (2012-05-07), pages 37 - 40
TAEYOUNG NA ET AL.: "An extended AMVP scheme in HEVC with MPEG-2 for a hybrid stereoscopic encoder", 2012 IEEE INTERNATIONAL SYMPOSIUM ON BROADBAND MULTIMEDIA SYSTEMS AND BROADCASTING (BMSB), 27 June 2012 (2012-06-27), pages 1 - 5
WENYI SU ET AL.: "Depth-based motion vector prediction in 3D video coding", PICTURE CODING SYMPOSIUM (PCS), 7 May 2012 (2012-05-07), pages 37 - 40
TAEYOUNG NA ET AL.: "An extended AMVP scheme in HEVC with MPEG-2 for a hybrid stereoscopic encoder", 2012 IEEE INTERNATIONAL SYMPOSIUM ON BROADBAND MULTIMEDIA SYSTEMS AND BROADCASTING (BMSB), 27 June 2012 (2012-06-27), pages 1 - 5
Attorney, Agent or Firm:
YONETSU, Kiyoshi et al. (JP)
Kiyoshi Yonezu (JP)
Kiyoshi Yonezu (JP)
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