IMAGE DECODING APPARATUS, IMAGE TRANSMISSION APPARATUS, IMAGE PROCESSING SYSTEM, IMAGE DECODING METHOD, AND IMAGE TRANSMISSION METHOD

摘要

An image decoding apparatus includes a request unit that requests an image transmission apparatus to transmit an image, a transmission unit that transmits range information indicating a range which is a partial range of the image and which is selected in accordance with a user operation to the image transmission apparatus, a receiving unit that, while the partial range of the image is selected, receives, from the image transmission apparatus, the entirety of the image when the image belongs to a first type and a portion of the image when the image belongs to a second type, by receiving one or more tiles, which corresponds to the partial range of the image and outside which a reference to is prohibited in inter-picture prediction, among a plurality of tiles included in the image, and a decoding unit that decodes the received entirety or portion of the image.

主权项

1. An image decoding apparatus for receiving an encoded image from an image transmission apparatus and decoding the image received from the image transmission apparatus, comprising:
a requester requests the image transmission apparatus to transmit the image; a transmitter transmits range information to the image transmission apparatus, the range information being range information indicating a range which is a partial range of the image within an entire range of the image and which is selected in accordance with a user operation; a receiver that, in a case that the partial range of the image is selected, (i) receives the entirety of the image from the image transmission apparatus when the image belongs to a first type, and (ii) receives a portion of the image from the image transmission apparatus when the image belongs to a second type, by receiving one or more tiles corresponding to the partial range of the image among a plurality of tiles included in the image, each of the one or more tiles being a tile outside which a reference to is prohibited in inter-picture prediction; and a decoder decodes the entirety or portion of the image received from the image transmission apparatus.