Image processing device and method
AssigneeSony Corporation
InventorKazushi Sato
Life of this patent
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Abstract
Disclosed is an image processing device and method capable of improving encoding efficiency when encoding motion vectors. A motion vector encoding unit generates (determines) a predictive motion vector of each PU. A region deciding unit refers to a predictive motion vector of a current PUC and predictive motion vectors of respective adjacent PUs adjacent to the current PUC to determine a CUT, to which an adjacent PUT having the same predictive motion vector as the current PUC belongs, as a region referred to for generating a predictive quantization parameter of the current CUT. This disclosure can be applied to an image processing device, for example.
Claims20
An image processing device comprising:
- a predictive motion vector generating unit that generates a predictive motion vector used when decoding a motion vector of a current region using a motion vector of a neighboring region located around the current region;
- a predictive quantization parameter generating unit that generates a predictive quantization parameter used when decoding a quantization parameter of the current region according to a method of predicting the predictive motion vector of the neighboring region, generated by the predictive motion vector generating unit;
- and
- a parameter decoding unit that decodes the motion vector of the current region using the predictive motion vector of the current region generated by the predictive motion vector generating unit and decodes the quantization parameter of the current region using the predictive quantization parameter of the current region generated by the predictive quantization parameter generating unit.
An image processing method for causing an image processing device to execute:
- generating a predictive motion vector used when decoding a motion vector of a current region using a motion vector of a neighboring region located around the current region;
- generating a predictive quantization parameter used when decoding a quantization parameter of the current region according to a method of predicting the generated predictive motion vector of the neighboring region;
- and
- decoding the motion vector of the current region using the generated predictive motion vector of the current region and decoding the quantization parameter of the current region using the generated predictive quantization parameter of the current region.
An image processing device comprising:
- a predictive motion vector generating unit that generates a predictive motion vector used when encoding a motion vector of a current region using a motion vector of a neighboring region located around the current region;
- a predictive quantization parameter generating unit that generates a predictive quantization parameter used when encoding a quantization parameter of the current region according to a method of predicting the predictive motion vector of the neighboring region, generated by the predictive motion vector generating unit;
- and
- a parameter encoding unit that encodes the motion vector of the current region using the predictive motion vector of the current region generated by the predictive motion vector generating unit and encodes the quantization parameter of the current region using the predictive quantization parameter of the current region generated by the predictive quantization parameter generating unit.
An image processing method for causing an image processing device to execute:
- generating a predictive motion vector used when encoding a motion vector of a current region using a motion vector of a neighboring region located around the current region;
- generating a predictive quantization parameter used when encoding a quantization parameter of the current region according to a method of predicting the generated predictive motion vector of the neighboring region;
- and
- encoding the motion vector of the current region using the generated predictive motion vector of the current region and encoding the quantization parameter of the target region using the generated predictive quantization parameter of the current region.
Dependencies are inferred from the claim text.