公开(公告)号：EP2725796A4

公开(公告)日：2014-11-12

申请号：EP12802237

申请日：2012-06-21

Applicant: PANASONIC IP CORP AMERICA

Inventor： SASAI HISAO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SUGIO TOSHIYASU ,  TANIKAWA KYOKO ,  MATSUNOBU TORU

IPC: H03M7/40 ,  H04N19/13 ,  H04N19/169 ,  H04N19/436 ,  H04N19/51 ,  H04N19/70

CPC classification number: H04N19/521 ,  H04N19/00703 ,  H04N19/13 ,  H04N19/17 ,  H04N19/184 ,  H04N19/1887 ,  H04N19/436 ,  H04N19/46 ,  H04N19/52 ,  H04N19/70

Abstract: An image coding method includes (S801) coding a motion vector difference indicating a difference between the motion vector and a predicted motion vector, wherein the coding (S801) includes: coding a first portion that is a part of a first component which is one of a horizontal component and a vertical component of the motion vector difference; coding a second portion that is a part of a second component which is different from the first component and is the other one of the horizontal component and the vertical component; coding a third portion that is a part of the first component and is different from the first portion; coding a fourth portion that is a part of the second component and is different from the second portion; and generating a code string which includes the first portion, the second portion, the third portion, and the fourth portion in the stated order.