公开(公告)号：AU2008203058B2

公开(公告)日：2009-07-02

申请号：AU2008203058

申请日：2008-07-10

Applicant: PANASONIC IP CORP AMERICA

Inventor： KONDO SATOSHI ,  HAGAI MAKOTO ,  KADONO SHINYA

IPC: H04N7/26 ,  G06T9/00 ,  H04N7/36 ,  H04N7/46 ,  H04N7/50

公开(公告)号：AU2002344460B2

公开(公告)日：2008-04-10

申请号：AU2002344460

申请日：2002-11-06

Applicant: PANASONIC IP CORP AMERICA

Inventor： HAGAI MAKOTO ,  KONDO SATOSHI ,  KADONO SHINYA

IPC: H04N19/577 ,  G06T9/00 ,  H04N19/103

Abstract: According to the present invention, a moving picture coding apparatus (70) for performing inter-picture predictive coding for pictures constituting a moving picture is provided with a coding unit (103) for performing predictive error coding for image data; a decoding unit (105) for performing predictive error decoding for an output from the coding unit (103); a reference picture memory (117) for holding output data from the decoding unit (105); and a motion vector detection unit (108) for detecting motion vectors on the basis of the decoded image data stored in the memory. When coding a B picture as a target picture, information indicating whether or not the target picture should be used as a reference picture when coding another picture is added as header information. Therefore, in a decoding apparatus for decoding a bit stream Bs outputted from the moving picture coding apparatus (70), management of a memory for holding the reference picture can be facilitated on the basis of the header information.

公开(公告)号：AU2003281129B2

公开(公告)日：2007-12-06

申请号：AU2003281129

申请日：2003-07-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： KONDO SATOSHI ,  SHEN SHENG MEI ,  KADONO SHINYA ,  ABE KIYOFUMI ,  FOO TECK WEE ,  HAGAI MAKOTO ,  LIM CHONG SOON

IPC: H04N19/105 ,  G06T9/00 ,  H04N19/114 ,  H04N19/134 ,  H04N19/136 ,  H04N19/152 ,  H04N19/159 ,  H04N19/196 ,  H04N19/423 ,  H04N19/426 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/895 ,  H04N19/91 ,  H04N21/234 ,  H04N21/44

Abstract: An input image is coded and then decoded by referencing an image stored in a picture buffer. The decoded image is checked whether it is a reference image or output image. The decoded image is stored in the picture buffer based upon the checking result. An independent claim is also included for image decoding method.

公开(公告)号：AU2003201906B2

公开(公告)日：2007-09-13

申请号：AU2003201906

申请日：2003-01-08

Applicant: PANASONIC IP CORP AMERICA

Inventor： HAGAI MAKOTO ,  KONDO SATOSHI ,  ABE KIYOFUMI ,  KADONO SHINYA

IPC: H04N19/51 ,  H03M7/36 ,  H04N19/105 ,  H04N19/423 ,  H04N19/50 ,  H04N19/61 ,  H04N19/625

Abstract: A motion vector coding unit 117 executes processing including a neighboring block specification step (S100) of specifying a neighboring block which is located in the neighborhood of a current block; a judgment step (Steps S102, S104) of judging whether or not the neighboring block has been coded using a motion vector of another block; a prediction step (S106, S108) of deriving a predictive motion vector of the current block using a motion vector calculated from the motion vector of the other block as a motion vector of the neighboring block; and a coding step (S110) of coding the motion vector of the current block using the predictive motion vector.