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US 10,313,689 B2Granted
Decoding device, coding device, and method
AssigneeSharp Kabushiki Kaisha
InventorsTomoyuki Yamamoto, Tomohiro Ikai
Life of this patent
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Abstract
A moving image decoder (1) includes an intermediate estimated prediction mode deriving section (124) for transforming a prediction mode of each neighbor partition into an intermediate prediction mode included in an intermediate prediction set which is a sum of prediction sets (PS); and an estimated prediction mode deriving section (125) for deriving an estimated prediction mode by estimating a prediction mode of a target partition based on the intermediate prediction mode of each neighbor partition which is obtained by the transform.
Claims9
A decoding device for decoding coded image data, comprising:
- a transform circuit configured to transform the one or more prediction modes of the one or more neighbor regions into one or more first prediction modes which are included in a set of prediction modes, wherein one or more prediction modes which are different from the one or more prediction modes of the one or more neighbor regions are included in the one or more first prediction modes;
- and
- an estimated prediction mode deriving circuit configured to derive an estimated prediction mode;
- wherein the estimated prediction mode of the target region is derived from the one or more first prediction modes when the set of prediction modes which includes the one or more first prediction modes is different from a set of prediction modes which is applicable to the target region
- and the estimated prediction mode deriving circuit derives the estimated prediction mode different from the first prediction mode when the first prediction mode is not included in the set of prediction modes which is applicable to the target region, and the estimated prediction mode deriving circuit derives the estimated prediction mode by setting the first prediction mode as the estimated prediction mode when the first prediction mode is included in the set of prediction modes which is applicable to the target region.
2 more elements
A coding device for coding image data, comprising:
- a transform circuit configured to transform the one or more prediction modes of the one or more neighbor regions into one or more first prediction modes which are included in a set of prediction modes;
- and
- an estimated prediction mode deriving circuit configured to derive an estimated prediction mode;
- wherein the estimated prediction mode of the target region is derived from the one or more first prediction modes when the set of prediction modes which include the one or more first prediction modes is different from a set of prediction modes which is applicable to the target region
- and the estimated prediction mode deriving circuit derives the estimated prediction mode different from the first prediction mode when the first prediction mode is not included in the set of prediction modes which is applicable to the target region, and the estimated prediction mode deriving circuit derives the estimated prediction mode by setting the first prediction mode as the estimated prediction mode when the first prediction mode is included in the set of prediction modes which is applicable to the target region.
2 more elements
A method for decoding coded image data, comprising:
- transforming the one or more prediction modes of the one or more neighbor regions into one or more first prediction modes which are included in a set of prediction modes;
- and
- deriving an estimated prediction mode;
- wherein the estimated prediction mode of the target region is derived from the one or more first prediction modes when the set of prediction modes which include the one or more first prediction modes is different from a set of prediction modes which is applicable to the target region
- and deriving the estimated prediction mode different from the first prediction mode when the first prediction mode is not included in the set of prediction modes which is applicable to the target region,
- and deriving the estimated prediction mode by setting the first prediction mode as the estimated prediction mode when the first prediction mode is included in the set of prediction modes which is applicable to the target region.
3 more elements
Dependencies are inferred from the claim text.