ENCODING METHOD AND ENCODER

Japanese Patent JP3831558

B2

PROBLEM TO BE SOLVED: To provide a method for adding recovery information to an inter-frame encoding video for the purpose of protecting video quality from packet loss.
SOLUTION: An inter-frame encoding video signal uses a data division function for dividing a video stream into a high priority part 104 and a low priority part 105. After that, systematic forward error/deletion correction encoding is executed only for data of the high priority part 104. High priority part data which are forward error/deletion corrected and low priority part data which are not forward error/deletion corrected are combined into be a packet, transmitted to a reception side through the same network and decoded there. Depending upon a degree of protection for an error or a deletion provided by a specific forward error/deletion correction(FEC), loss of the packet including the high priority part data is corrected by the data where there is no loss in the high priority part.

Jill McDonald Boys

JP29907399A

October 11, 2006

October 21, 1999

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Lucent Technologies, Inc.

H03M13/03; H03M13/15; H03M13/37; H04L12/70; H04N7/24; H04N7/66; H04N19/00; H04N21/2381; H04N21/4363; H04N21/438; (IPC1-7): H04N7/24; H03M13/03; H03M13/15; H03M13/37; H04L12/56

JP9191457A
JP7099662A
JP6309812A
JP7162801A
JP8331559A
JP6045953A

Richardson I E G et al,"MPEG coding for error resilient transmission",Fifth International Conference on Image Processing and its Applications,英国,IEE,1995年 7月,No.40,p.559-p.563

Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Hirofumi Mimata

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