TRANSMISSION DEVICE, TRANSMISSION METHOD, AND RECEPTION DEVICE

• US 20170164033A1
• Filed: 07/09/2015
• Published: 06/08/2017
• Est. Priority Date: 08/07/2014
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: TSUKAGOSHI, Ikuo
• Granted Patent: US 10,397,642 B2
• Time in Patent Office: Days
• CPC Class Codes: G06T 9/00 Image coding bandwidth or redundancy reduction for static pictures H04N1/41; coding or decoding of static colour picture signals H04N1/64; methods or arrangements for coding, decoding, compressing or decompressing digital video signals H04N19/00
• CPC Class Codes: H04N 19/102 characterised by the element, parameter or selection affected or controlled by the adaptive coding
• CPC Class Codes: H04N 19/134 characterised by the element, parameter or criterion affecting or controlling the adaptive coding
• CPC Class Codes: H04N 19/189 characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
• CPC Class Codes: H04N 19/30 using hierarchical techniques, e.g. scalability H04N19/63 takes precedence
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards
• CPC Class Codes: H04N 21/2351 involving encryption of additional data arrangements using cryptography for the use of broadcast information or broadcast-related information H04H60/23
• CPC Class Codes: H04N 21/236 Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/436 Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
• CPC Class Codes: H04N 21/438 Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
• CPC Class Codes: H04N 21/4545 Input to filtering algorithms, e.g. filtering a region of the image
• CPC Class Codes: H04N 21/6336 directed to decoder

Abstract

A predetermined number of pieces of high-quality format image data are successfully transmitted together with basic format image data. A basic video stream including encoded image data of basic format image data and an extended video stream including encoded image data of each of a predetermined number of pieces of high-quality format image data are generated, or a video stream including encoded image data of basic format image data and encoded image data of each of a predetermined number of pieces of high-quality format image data is generated. A container of a predetermined format including the generated video stream is transmitted. Identification information identifying a corresponding format is inserted into the encoded image data of the basic format image data and each of a predetermined number of pieces of high-quality format image data.

Claims

1. :

A transmission device, comprising;

an image encoding unit that generates a basic video stream including encoded image data of basic format image data and an extended video stream including encoded image data of each of a predetermined number of pieces of high-quality format image data; and

a transmission unit that transmits a container of a predetermined format including the basic video stream and the extended video stream generated by the image encoding unit,

wherein the image encoding unit inserts identification information identifying a corresponding format into the encoded image data of the basic format image data and each of the predetermined number of pieces of high-quality format image data.

2. :

The transmission device according to claim 1,

wherein the encoded image data has a NAL unit structure, and

the image encoding unit inserts the identification information into a header of the NAL unit.

3. :

The transmission device according to claim 2,

wherein the image encoding unit inserts the identification information using a field of “

nuh_layer_id”

of the header of the NAL unit.

4. :

The transmission device according to claim 2,

wherein the image encoding unit inserts the identification information using fields of “

nuh_layer_id” and

“

nuh_temporal_id_plus1”

of the header of the NAL unit.

5. :

The transmission device according to claim 1, further comprising

an information inserting unit that inserts information defining a format of the encoded image data indicated by the identification information inserted into the encoded image data into a layer of the container.

6. :

The transmission device according to claim 5,

wherein the container is an MPEG2-TS, and

the information inserting unit inserts the information into a video elementary stream loop corresponding to the video stream existing under a program map table.

7. :

A transmission method, comprising;

an image encoding step of generating a basic video stream including encoded image data of basic format image data and an extended video stream including encoded image data of each of a predetermined number of pieces of high-quality format image data; and

a transmission step of transmitting, by a transmission unit, a container of a predetermined format including the basic video stream and the extended video stream generated in the image encoding step,

wherein the image encoding step including inserting identification information identifying a corresponding format into the encoded image data of the basic format image data and each of the predetermined number of pieces of high-quality format image data.

8. :

A reception device, comprising;

a reception unit that receives a container of a predetermined format including a basic video stream including encoded image data of basic format image data and an extended video stream including encoded image data of each of a predetermined number of pieces of high-quality format image data,

wherein identification information identifying a corresponding format is inserted into the encoded image data of the basic format image data and each of the predetermined number of pieces of high-quality format image data; and

a processing unit that processes the video streams included in the received container on the basis of the identification information and display capability information.

9. :

The reception device according to claim 8,

wherein the encoded image data has a NAL unit structure, and

the identification information is inserted into a header of the NAL unit.

10. :

The reception device according to claim 8,

wherein information defining a format of the encoded image data indicated by the identification information inserted into the encoded image data is inserted into a layer of the container, and

the processing unit detects a format of the encoded image data indicated by the identification information inserted into the encoded image data on the basis of the information inserted into the layer of the container.

11-17. -17. (canceled)

18. :

A reception device, comprising;

a reception unit that receives a container of a predetermined format including a video stream including encoded image data of basic format image data and encoded image data of each of a predetermined number of pieces of high-quality format image data,

wherein identification information identifying a corresponding format is inserted into the encoded image data of the basic format image data and each of the predetermined number of pieces of high-quality format image data; and

a processing unit that processes the video stream included in the received container on the basis of the identification information and display capability information.

19. :

The reception device according to claim 18,

wherein the encoded image data has a NAL unit structure, and

the identification information is inserted into a header of the NAL unit.

20. :

The reception device according to claim 18,

wherein information defining a format of the encoded image data indicated by the identification information inserted into the encoded image data is inserted into a layer of the container, and

the processing unit detects a format of the encoded image data indicated by the identification information inserted into the encoded image data on the basis of the information inserted into the layer of the container.