1. An image processing device comprising: a decoding unit configured to decode encoded data in which an image with a plurality of layers is encoded by performing inter-layer prediction, which is prediction between the plurality of layers, based on inter-layer prediction control information specifying a highest sublayer used for the inter-layer prediction, from a lowest sublayer to the highest sublayer specified by the inter-layer prediction control information.

2. The image processing device according to claim 1, wherein if a current picture of a current layer belongs to the sublayer specified as the sublayer for which the inter-layer prediction is performed by the inter-layer prediction control information, the decoding unit decodes the encoded data of the current picture using the inter-layer prediction.

3. The image processing device according to claim 1, wherein the inter-layer prediction control information is set for each layer.

4. The image processing device according to claim 1, wherein the inter-layer prediction control information is set as a parameter common to all the layers.

5. The image processing device according to claim 1, wherein the decoding unit performs inter-layer pixel prediction, which is pixel prediction between the plurality of layers based on inter-layer pixel prediction control information that controls whether to perform the inter-layer pixel prediction, and performs inter-layer syntax prediction , which is syntax prediction between the plurality of layers based on the inter-layer syntax prediction control information that controls whether to perform inter-layer syntax prediction, the inter-layer pixel prediction control information and the inter-layer syntax prediction control information being set independently as the inter-layer prediction control information.

6. The image processing device according to claim 5, wherein the inter-layer pixel prediction control information controls using the information related to the sublayer, whether to perform the inter-layer pixel prediction, the decoding unit performs the inter-layer pixel prediction on only the sublayer specified by the inter-layer pixel prediction control information, the inter-layer syntax prediction control information controls whether to perform the inter-layer syntax prediction for each picture or slice, and the decoding unit performs the inter-layer syntax prediction on only the picture or slice specified by the inter-layer syntax prediction control information.

7. The image processing device according to claim 6, wherein the inter-layer pixel prediction control information is transmitted as a nal unit (nal_unit) , a video parameter set (VPS (Video Parameter Set)), or an extension video parameter set (vps_extension).

8. The image processing device according to claim 6, wherein the inter-layer syntax prediction control information is transmitted as a nal unit (nal_unit) , a picture parameter set (PPS (Picture Parameter Set)), or a slice header (SliceHeader).

9. An image processing method comprising: decoding encoded data in which an image with a plurality of layers is encoded by performing inter-layer prediction, which is prediction between the plurality of layers, based on inter-layer prediction control information specifying a highest sublayer used for the inter-layer prediction, from a lowest sublayer to the highest sublayer specified by the inter-layer prediction control information.

We claim:
1. An image processing device comprising:
a decoding unit configured to decode encoded data in which an image with a plurality of layers is encoded by performing inter-layer prediction, which is prediction between the plurality of layers, based on inter-layer prediction control information specifying a highest sublayer used for the inter-layer prediction, from a lowest sublayer to the highest sublayer specified by the inter-layer prediction control information.
2. The image processing device according to claim 1, wherein if a current picture of a current layer belongs to the sublayer specified as the sublayer for which the inter-layer prediction is performed by the inter-layer prediction control information, the decoding unit decodes the encoded data of the current picture using the inter-layer prediction.
3. The image processing device according to claim 1, wherein the inter-layer prediction control information is set for each layer.
4. The image processing device according to claim 1, wherein the inter-layer prediction control information is set as a parameter common to all the layers.
5. The image processing device according to claim 1, wherein
the decoding unit performs inter-layer pixel prediction, which is pixel prediction between the plurality of layers based on inter-layer pixel prediction control information that controls whether to perform the inter-layer pixel prediction, and performs inter-layer syntax prediction , which is syntax prediction between the plurality of layers based on the inter-layer syntax prediction control information that controls whether to perform inter-layer syntax prediction, the inter-layer pixel prediction control information and the inter-layer syntax prediction control information being set independently as the inter-layer prediction control information.
6. The image processing device according to claim 5, wherein
the inter-layer pixel prediction control information controls using the information related to the sublayer, whether to perform the inter-layer pixel prediction,
the decoding unit performs the inter-layer pixel prediction on only the sublayer specified by the inter-layer pixel prediction control information,
the inter-layer syntax prediction control information controls whether to perform the inter-layer syntax prediction for each picture or slice, and
the decoding unit performs the inter-layer syntax prediction on only the picture or slice specified by the inter-layer syntax prediction control information.
7. The image processing device according to claim 6, wherein the inter-layer pixel prediction control information is transmitted as a nal unit (nal_unit) , a video parameter set (VPS
(Video Parameter Set)), or an extension video parameter set
(vps_extension).
8. The image processing device according to claim 6,
wherein the inter-layer syntax prediction control information
is transmitted as a nal unit (nal_unit) , a picture parameter set
(PPS (Picture Parameter Set)), or a slice header (SliceHeader).
9. An image processing method comprising:
decoding encoded data in which an image with a plurality of layers is encoded by performing inter-layer prediction, which is prediction between the plurality of layers, based on inter-layer prediction control information specifying a highest sublayer used for the inter-layer prediction, from a lowest sublayer to the highest sublayer specified by the inter-layer prediction control information.