Image encoding/decoding method and apparatus and image processing equipment
AssigneeFujitsu Limited
InventorsJianqing ZHU, Zheng WANG, Kimihiko KAZUI
Life of this patent
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Abstract
An image encoding/decoding method and apparatus and image processing equipment, in which encoding/decoding is/are performed on a plurality of sub-predicting units of a predicting unit in an intra prediction manner. The image encoding method includes: determining a prediction mode of the predicting unit; respectively calculating residual information on the plurality of sub-predicting units of the predicting unit; and encoding information on the prediction mode of the predicting unit and the residual information on the plurality of sub-predicting units into a bit steam. Hence, an intra prediction result may be provided more accurately without increasing overmuch encoding cost.
Claims19
An image encoding apparatus, which is configured to perform encoding on a plurality of sub-predicting units of a predicting unit in an intra prediction manner, the image encoding apparatus comprising:
- at least one processor configured to:
- determine a prediction mode of the predicting unit;
- calculate residual information associated the plurality of sub-predicting units of the predicting unit, respectively;
- and
- a bit stream encoder configured to encode information associated with the prediction mode of the predicting unit and the residual information associated with the plurality of sub-predicting units into a bit steam.
An image decoding apparatus, which is configured to perform decoding on a plurality of sub-predicting units of a predicting unit in an intra prediction manner, the image decoding apparatus comprising:
- at least one processor configured to:
- obtain information associated with a prediction mode of the predicting unit and residual information associated with the plurality of sub-predicting units of the predicting unit from a bit stream, and
- calculate reconstructed images of the plurality of sub-predicting units, respectively, according to the prediction mode of the predicting unit and the residual information corresponding to the plurality of sub-predicting units.
Dependencies are inferred from the claim text.