Title:
A method and a device for coding a video stream
Document Type and Number:
Japanese Patent JP6084687
Kind Code:
B2
Abstract:
A method for encoding a video stream divided in macroblocks using an encoding scheme, the video stream comprising a transparency level channel, said method comprising:
- classifying said macroblocks into inner macroblocks, for which a transparency value provided by said transparency information channel is substantially uniform, and transition macroblocks, for which a transparency value provided by said transparency level channel is not substantially uniform;
- determining a statistic of said transparency value for each one of said inner macroblocks; and
- configuring a respective parameter of said encoding scheme for each one of said inner macroblocks in function of its respective statistic.
Inventors:
Stephens, Christoph
Rondao Olface, Patrice
Van brooke, sifurt
Mack, Jean-Francois
Rondao Olface, Patrice
Van brooke, sifurt
Mack, Jean-Francois
Application Number:
JP2015514424A
Publication Date:
February 22, 2017
Filing Date:
May 23, 2013
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
H04N19/117; H04N19/109; H04N19/11; H04N19/132; H04N19/136; H04N19/174; H04N19/82; H04N19/86
Domestic Patent References:
| JP2005253088A | ||||
| JP9051504A | ||||
| JP2000236551A | ||||
| JP2006067571A | ||||
| JP2006254320A | ||||
| JP2003143600A |
Attorney, Agent or Firm:
Kawaguchi International Patent Office