Title:
METHOD OF DECODED PICTURE BUFFER MANAGEMENT FOR INTRA BLOCK COPY MODE
Document Type and Number:
WIPO Patent Application WO/2016/192594
Kind Code:
A1
Abstract:
Methods and Apparatus of managing decoded picture buffer for a video decoding system using Intra Block Copy (IBC) mode. In one embodiment, one or more previously reconstructed pictures after in-loop filtering are stored in a DPB (decoded picture buffer). For decoding a current picture, a first and a second picture buffers are allocated in the DPB. Both unfiltered version and filtered version of reconstructed current picture are stored in the first and second picture buffers. After the current picture is decoded, the unfiltered version is removed from the DPB. In another embodiment, an unfiltered version and filtered version of reconstructed current picture are stored. One of them is stored in the DPB and the other is stored in a temporary buffer. After the current picture is decoded, the unfiltered version is removed from the DPB or the temporary buffer.
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Inventors:
XU XIAOZHONG (US)
LIU SHAN (US)
LIU CHENGHAO (US)
LIU SHAN (US)
LIU CHENGHAO (US)
Application Number:
PCT/CN2016/083737
Publication Date:
December 08, 2016
Filing Date:
May 27, 2016
Export Citation:
Assignee:
HFI INNOVATION INC (CN)
International Classes:
H04N19/423
Domestic Patent References:
| WO2015054811A1 | 2015-04-23 |
Foreign References:
| CN103873872A | 2014-06-18 | |||
| US20090147850A1 | 2009-06-11 | |||
| US201562167474P | 2015-05-28 |
Other References:
JOSHI, RAJAN ET AL.: "High Efficiency Video Coding (HEVC) Screen Content Coding: Draft 3", JOINT COLLABORATIVE TEAM ON VIDEO CODING(JCT-VC) OF ITU-T SG 16 WP 3 AND ISOI IEC JTC 1/SC 29/WG 1120TH MEETING, 10 February 2015 (2015-02-10), Geneva, CH, XP055321224
See also references of EP 3292691A4
See also references of EP 3292691A4
Attorney, Agent or Firm:
WAN HUI DA INTELLECTUAL PROPERTY AGENCY (Friendship Hotel No. 1 Zhongguancun Street South,Haidian District, Beijing 3, CN)
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