Patent ID: 9414065
Filing Date: 2016-08-09
CPC Classification: H04N

Claim Text:
1. A dynamic image distribution system for managing a compression-encoded dynamic image as a set of tiles including one or more macro blocks, the system comprising: a transmitter, comprising: a tile storage that stores a set of tiles configuring a dynamic image; one or more stream correctors that read a tile from the tile storage, perform a correction process, and output; a synthesizer that synthesizes a frame of dynamic image bit stream from the tile outputted from the stream correctors and transmits; and a display position controller that manages a display region in the dynamic image, and controls the stream correctors and the synthesizer based on the display region; and a receiver, comprising: a decoder that receives and decodes the dynamic image bit stream; a display that displays the dynamic image decoded by the decoder; and an operation inputter that inputs a user's operation, and transmits to the display position controller of the transmitter, wherein the stream correctors read a tile group corresponding to an imaging range including the display region, and perform a position information correction process yr the read tile for correcting a position of the tile in a frame including the tile group, the synthesizer records information showing a range of the display region in the frame including the tile group in the dynamic image bit stream, the tile is coded so as be decodable without using information on a tile at a different position in an image, the tile is coded by at least one coding of coding of an I tile, which is decodable without referring to other image information, and coding of a P tile, which decodes by performing interframe prediction using an image of a decoding result of a tile at the same position of other images, the stream correctors read either tile of an I tile or a P tile for each position of the tile included in the tile group, and the stream correctors read the P tile when an image used in the interframe prediction has been decoded, and the I tile when the image has not been decoded, for each tile included in the tile group.