High efficiency video coding device and method based on reference picture type
AssigneeSony Corporation
InventorsYoshitomo Takahashi, Shinobu Hattori
Life of this patent
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Abstract
The present technique relates to an image processing device and method capable of suppressing a decrease in encoding efficiency. The image processing device includes: a predictive vector generating unit that generates a predictive vector of a current parallax vector of a current block used in prediction using correlation in a parallax direction using a reference parallax vector referred when generating a predictive motion vector, when encoding the current parallax vector; and a difference vector generating unit that generates a difference vector between the current parallax vector and the predictive vector generated by the predictive vector generating unit. The present disclosure can be applied to an image processing device.
Claims15
An image processing device comprising:
- circuitry configured to operate as:
- a predictive motion vector generating unit that:
- sets a co-located vector to be available and to be scaled in a candidate list as a condition that both a type of a reference picture of a current block and a type of a reference picture of a co-located block are short-term reference pictures;
- sets the co-located vector to be available and to be not scaled in the candidate list as a condition that both the type of the reference picture of the current block and the type of the reference picture of the co-located block are long-term reference pictures;
- and generates a predictive motion vector of a coding vector of the current block using the candidate list;
- and an encoding unit that encodes the current block and the coding vector generated using the predictive motion vector.
An image processing method performed by an image processing device, comprising:
- setting a co-located vector to be available and to be scaled in a candidate list as a condition that both a type of a reference picture of a current block and a type of a reference picture of a co-located block are short-term reference pictures;
- setting the co-located vector to be available and to be not scaled in the candidate list as a condition that both the type of the reference picture of the current block and the type of the reference picture of the co-located block are long-term reference pictures;
- generating a predictive motion vector of a coding vector of the current block using the candidate list;
- and encoding the current block and the coding vector generated using the predictive motion vector.
At least one non-transitory computer-readable storage medium having instructions recorded thereon which, when executed by a computer, cause the computer to perform a method comprising:
- setting a co-located vector to be available and to be scaled in a candidate list as a condition that both a type of a reference picture of a current block and a type of a reference picture of a co-located block are short-term reference pictures;
- setting the co-located vector to be available and to be not scaled in the candidate list as a condition that both the type of the reference picture of the current block and the type of the reference picture of the co-located block are long-term reference pictures;
- generating a predictive motion vector of a coding vector of the current block using the candidate list;
- and encoding the current block and the coding vector generated using the predictive motion vector.
Dependencies are inferred from the claim text.