Title:
PARTIAL DECODING FOR ARBITRARY VIEW ANGLE AND LINE BUFFER REDUCTION FOR VIRTUAL REALITY VIDEO
Document Type and Number:
WIPO Patent Application WO/2017/063566
Kind Code:
A1
Abstract:
Apparatus and methods are disclosed for partially decoding video frames when a sub-region of the video is selected for viewing. The method identifies and decodes data units and pixel blocks of video frames needed to display the sub-region while bypassing data units and pixel blocks that are identified as unnecessary for displaying the sub-region. A video encoder receives a video frame comprising a plurality of cubic surfaces in a first configuration corresponding to a full sized 360VR image. Each cubic surface corresponds to a different surface of a cube. The encoder reformats the received video frame by rearranging the plurality of cubic surfaces according to a second configuration that is different than the first configuration. The second configuration re-arranges the six surfaces of a cubic 360VR image in order to fully utilize the line buffer and allow the line buffer to be narrower than the full sized 360VR image.
Inventors:
LIN HUNG-CHIH (CN)
CHANG SHEN-KAI (CN)
HUANG CHAO-CHIH (CN)
CHANG SHEN-KAI (CN)
HUANG CHAO-CHIH (CN)
Application Number:
PCT/CN2016/101992
Publication Date:
April 20, 2017
Filing Date:
October 13, 2016
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N7/00; H04N5/00
Foreign References:
| CN102945563A | 2013-02-27 | |||
| CN1450816A | 2003-10-22 | |||
| CN101313580A | 2008-11-26 | |||
| JPH03167975A | 1991-07-19 |
Other References:
See also references of EP 3275168A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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