Picture coding apparatus, picture coding method, and recording medium having picture coding program recorded thereon
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsKazuhiro Matsuzaki, Yoshiaki Kato, Tokumichi Murakami
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Abstract
A plurality of picture frames is arranged as one group according to correlation between picture frames in a picture sequence. Then, a coding mode corresponding to each of the picture frames of the group is determined. Subsequently, preceding is performed according to the coding mode. Then, the coding of a picture is performed by controlling a coding parameter according to a result of the preceding and to the coding mode.
Claims16
A picture coding apparatus comprising:
- a group structure determining portion for constituting a plurality of picture frames as a group according to correlation between the picture frames in a picture sequence, the group structure determining portion for determining a coding mode corresponding to each of the picture frames of the group;
- a preceding portion for performing preceding according to the coding mode determined by the group structure determining portion correspondingly to each of the picture frames;
- and
- a coding portion for performing coding of a picture by controlling a coding parameter according to a result of the preceding obtained by the preceding portion and to the coding mode determined by the group structure determining portion.
A picture coding method comprising:
- constituting a plurality of picture frames as a group according to correlation between the picture frames in a picture sequence;
- determining a coding mode for each of the picture frames of the group,
- performing preceding according to the coding mode determined for each of the picture frames;
- and
- performing coding of a picture by controlling a coding parameter according to a result of the preceding and to the determined coding.
A recording medium recording a picture coding program to be executed in a computer, the picture coding program comprising:
- constituting a plurality of picture frames as a group according to correlation between the picture frames in a picture sequence;
- determining a coding mode for each of the picture frames of the group;
- performing preceding according to the determined coding mode corresponding to each of the picture frames;
- and
- performing coding of a picture by controlling a coding parameter according to a result of the preceding and to the determined coding mode.
Dependencies are inferred from the claim text.