Title:
IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/104179
Kind Code:
A1
Abstract:
The present disclosure relates to an image processing apparatus and an image processing method that can enhance the encoding efficiency in prediction using intra-screen correlation. In encoding a current motion vector of a current block used for prediction in which intra-screen correlation is used, if the type of a reference picture in the current block differs from the type of a reference picture in a candidate block corresponding to a candidate of a reference motion vector that is referred to in generating a prediction vector of the current motion vector, a prediction-vector generation unit sets the candidate block to NOT AVAILABLE and generates a prediction vector of the current motion vector using the reference motion vector. A difference-vector generation unit generates a difference vector between the current motion vector and the prediction vector generated by the prediction-vector generation unit. The present disclosure can be applied to, for example, an encoding device.
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Inventors:
NAKAGAMI OHJI (JP)
Application Number:
PCT/JP2015/084763
Publication Date:
June 30, 2016
Filing Date:
December 11, 2015
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H04N19/52; H04N19/58; H04N19/593
Domestic Patent References:
| WO2014007521A1 | 2014-01-09 | |||
| WO2014097912A1 | 2014-06-26 |
Other References:
CHAO PANG ET AL.: "Non-CE2: Intra block copy with Inter signaling", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 19TH MEETING JCTVC-S0113, 21 October 2014 (2014-10-21), Strasbourg, FR, pages 1 - 4, XP030116869
YOSHITOMO TAKAHASHI ET AL.: "High-level Syntax: Motion vector prediction issue for long-term reference picture", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 10TH MEETING JCTVC-J0071, 29 June 2012 (2012-06-29), Stockholm, SE, pages 1 - 6, XP030112433
RAJAN JOSHI ET AL.: "Screen content coding test model 3 (SCM 3", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 19TH MEETING JCTVC-S1014, 17 October 2014 (2014-10-17), Strasbourg, FR, pages 4, XP009504189
See also references of EP 3240290A4
YOSHITOMO TAKAHASHI ET AL.: "High-level Syntax: Motion vector prediction issue for long-term reference picture", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 10TH MEETING JCTVC-J0071, 29 June 2012 (2012-06-29), Stockholm, SE, pages 1 - 6, XP030112433
RAJAN JOSHI ET AL.: "Screen content coding test model 3 (SCM 3", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 19TH MEETING JCTVC-S1014, 17 October 2014 (2014-10-17), Strasbourg, FR, pages 4, XP009504189
See also references of EP 3240290A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
Nishikawa 孝 (JP)
Nishikawa 孝 (JP)
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