| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image coding apparatus and the like capable of improving image quality and coding efficiency without causing deterioration in the coding efficiency even in a scene with large motion in a screen. <P>SOLUTION: The image coding apparatus 100 includes: a reference index assignment unit 102 configured to assign reference indices to a plurality of reference pictures which can be referred to by a picture to be coded, which has a different value; and an image coding unit 103 configured to perform field-coding on the picture to be coded by referring to the reference pictures indicated by the reference indices assigned by the reference index assignment unit 102, and to code the reference indices wherein the reference index assignment unit 102 is configured to assign a reference index having a value smaller than a value of a reference index to be assigned to the other reference picture to one of two reference pictures included in the plurality of reference pictures, and one of the two reference pictures is temporally closer to the current picture to be coded than the other reference picture. <P>COPYRIGHT: (C)2010,JPO&INPIT |
