Image processing apparatus and method
AssigneeSony Corporation
InventorsTakuya Kitamura, Nobuo Ueki
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to image processing apparatus and method intended to be capable of suppressing deterioration in image quality. [Solution] A predicated image is generated using inter-prediction and constrained intra-prediction, the inter-prediction using as a reference image an image of a past frame processed before a current frame, the constrained intra-prediction using no neighboring pixels subjected to inter-prediction, the image of the past frame being encoded, stored in a frame memory, read from the frame memory, and then decoded. The present disclosure is applicable to, in one example, an image processing apparatus, an image coding apparatus, or the like.
Claims18
An image processing apparatus, comprising:
- a processor configured to:
- generate a predicted image based on inter-prediction and constrained intra-prediction, wherein
- the inter-prediction is based on a reference image,
- the reference image is an image of a past frame processed before a current frame, and
- the reference image is accessed from a frame memory;
- and
- determine that a distance between the current frame and an I-picture is equal to or larger than a threshold value;
- and
- control execution of the constrained intra-prediction as intra-prediction based on the determination that the distance between the current frame and the I-picture is equal to or larger than the threshold value, wherein the constrained intra-prediction is executed using no neighboring pixels subjected to the inter-prediction.
An image processing method, comprising:
- generating a predicted image based on inter-prediction and constrained intra-prediction, wherein
- the inter-prediction is based on a reference image of a past frame processed before a current frame,
- the reference image is accessed from a frame memory;
- and
- determining that a distance between the current frame and an I-picture is equal to or larger than a threshold value;
- and
- controlling execution of the constrained intra-prediction as intra-prediction based on the determination that the distance between the current frame and the I-picture is equal to or larger than the threshold value, wherein the constrained intra-prediction is executed using no neighboring pixels subjected to the inter-prediction.
Dependencies are inferred from the claim text.