# US 2019/0174153 A1 · Transmission apparatus, transmission method, reception apparatus, and reception method

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- Number: US 2019/0174153 A1
- Document ID: US20190174153A1
- Status: Published application
- Kind: A1
- Application number: 16/270,879
- Filed: 2019-02-08
- Published: 2019-06-06
- Earliest claimed: 2013-08-27
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Ikuo TSUKAGOSHI
- Web page: https://patentgrep.com/patent/US20190174153A1

## CPC

- H04N 21/2362: Generation or processing of Service Information [SI]
- H04N 19/31: in the temporal domain
- H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards
- H04N 21/2343: involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements {(video transcoding H04N19/40; media packet handling at the source H04L65/762)}
- H04N 21/23605: {Creation or processing of packetized elementary streams [PES]}
- H04N 21/4343: {Extraction or processing of packetized elementary streams [PES]}
- H04N 21/44004: {involving video buffer management, e.g. video decoder buffer or video display buffer}
- H04N 21/8451: {using Advanced Video Coding [AVC]}
- H04N 21/85406: {involving a specific file format, e.g. MP4 format}
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

To enable satisfactory decoding processing corresponding to a decoding capability on a reception side. Image data of pictures constituting moving image data are sorted into multiple hierarchies, image data of pictures of each of the sorted hierarchies are encoded, and video data including the encoded image data of the pictures of each of the hierarchies is generated. A container of a predetermined format including the video data is transmitted. The multiple hierarchies are divided into a predetermined number of hierarchy groups, the predetermined number being two or more, and identification information for identifying a hierarchy group to which encoded image data of each picture included in the video data belongs is inserted into a packet as a container of the video data.

## Claims

### Claim 1

A reception apparatus, comprising:
circuitry configured to
receive a description and encoded image data on a low layer side and a high layer side, wherein
the description includes first identification information of the low layer side of the encoded image data, and second identification information of the low layer side and the high layer side of the encoded image data, and
the encoded image data of each layer includes information for identifying a layer to which the encoded image data belongs,
decode encoded image data from a lowest layer to a specified layer on the basis of the description, and
set a frame rate of the decoded image data on the basis of selection information which is generated automatically or according to a user operation.

### Claim 2 (depends on 1)

The reception apparatus according to claim 1, wherein the first identification information is a level specification value of a bit stream included in the low layer side of the encoded image data.

### Claim 3 (depends on 2)

The reception apparatus according to claim 2, wherein the second identification information is a level specification value of a bit stream included in the low layer side and the high layer side of the encoded image data.

### Claim 4 (depends on 1)

The reception apparatus according to claim 1, the circuitry further configured to extract the first identification information and the second identification information from the description.

### Claim 5 (depends on 1)

The reception apparatus according to claim 1, wherein decoding intervals of pictures on the low layer side of the encoded image data are equal.

### Claim 6 (depends on 1)

The reception apparatus according to claim 1, wherein the frame rate of the decoded image data is matched with a display capability.

### Claim 7 (depends on 1)

The reception apparatus according to claim 1, wherein the description and the encoded image data are received through broadcast transmission.

### Claim 8 (depends on 1)

The reception apparatus according to claim 1, wherein
the encoded image data on the low layer side comprises encoded image data on a first layer and the encoded image data on the high layer side comprises encoded image data on a second layer,
the description includes the first identification information of the first layer and the second identification information of the first layer and the second layer,
the circuitry is configured to decode the encoded image data on the first layer when the specified layer is the first layer, and
the circuitry is configured to decode the encoded image data on the first layer and the encoded image data on the second layer when the specified layer is the second layer.

### Claim 9

A reception method, comprising:
receiving a description and encoded image data on a low layer side and a high layer side, wherein
the description includes first identification information of the low layer side of the encoded image data, and second identification information of the low layer side and the high layer side of the encoded image data, and
the encoded image data of each layer includes information for identifying a layer to which the encoded image data belongs,
decoding encoded image data from a lowest layer to a specified layer on the basis of the description, and
setting a frame rate of the decoded image data on the basis of selection information which is generated automatically or according to a user operation.

### Claim 10 (depends on 9)

The reception method according to claim 9, wherein the first identification information is a level specification value of a bit stream included in the low layer side of the encoded image data.

### Claim 11 (depends on 10)

The reception method according to claim 10, wherein the second identification information is a level specification value of a bit stream included in the low layer side and the high layer side of the encoded image data.

### Claim 12 (depends on 9)

The reception method according to claim 9, further comprising extracting the first identification information and the second identification information from the description.

### Claim 13 (depends on 9)

The reception method according to claim 9, wherein decoding intervals of pictures on the low layer side of the encoded image data are equal.

### Claim 14 (depends on 9)

The reception method according to claim 9, wherein the frame rate of the decoded image data is matched with a display capability.

### Claim 15 (depends on 9)

The reception method according to claim 9, wherein the description and the encoded image data are received through broadcast transmission.

### Claim 16 (depends on 9)

The reception method according to claim 9, wherein
the encoded image data on the low layer side comprises encoded image data on a first layer and the encoded image data on the high layer side comprises encoded image data on a second layer,
the description includes the first identification information of the first layer and the second identification information of the first layer and the second layer,
the method comprising decoding the encoded image data on the first layer when the specified layer is the first layer, and
the method comprising decoding the encoded image data on the first layer and the encoded image data on the second layer when the specified layer is the second layer.

### Claim 17

A non-transitory computer-readable storage medium storing computer-readable instructions thereon, which, when executed by a reception apparatus, cause the reception apparatus to perform a method, comprising:
receiving a description and encoded image data on a low layer side and a high layer side, wherein
the description includes first identification information of the low layer side of the encoded image data, and second identification information of the low layer side and the high layer side of the encoded image data, and
the encoded image data of each layer includes information for identifying a layer to which the encoded image data belongs,
decoding encoded image data from a lowest layer to a specified layer on the basis of the description, and
setting a frame rate of the decoded image data on the basis of selection information which is generated automatically or according to a user operation.
