Method and apparatus for transmitting/receiving broadcast signal for 3-dimensional (3d) broadcast service

Patent metadata

Field	Value
Publication number	US-2016337670-A1
Application number	US-201515111761-A
Country	US
Kind code	A1
Filing date	Feb 10, 2015
Priority date	Feb 10, 2014
Publication date	Nov 17, 2016
Grant date	—

Abstract

The present invention relates to providing a method and/or an apparatus for transmitting/receiving a broadcast signal for a 3-dimensional (3D) broadcast service. The method for transmitting a broadcast signal according to one embodiment of the present invention comprises the steps of: downsampling each of a left picture frame, a right picture frame, a depth picture frame for the left picture frame and a depth picture frame for the right picture frame, and encoding a packed frame which packs at least one frame of the downsampled frames into one frame, generating a broadcast signal comprising signaling information for the encoded packed frame and a picture related to the packed frame; and sending the generated broadcast signal.

First claim

1 . A method for transmitting a broadcast signal, the method comprising the steps of:
downsampling each of a left view frame, a right view frame, a depth view frame for a left view and a depth view frame for a right view, and encoding a packing frame which packs at least one of the downsampled frames into one frame; generating a broadcast signal comprising signaling information for the encoded packing frame and a view related to the packing frame; and transmitting the generated broadcast signal.

2 . The method according to claim 1 , wherein the packing frame is generated by mapping depth information included in the depth view frame for the left view and depth information included in the depth view frame for the right view into color spatial components indicating the packing frame in a bit unit.

3 . The method according to claim 1 , wherein the signaling information includes frame packing arrangement information indicating that the frame included in the broadcast signal is a packing frame.

4 . The method according to claim 3 , wherein the signaling information includes depth bit depth information indicating a bit depth of depth information included in the depth view frame for the left view and depth information included in the depth view frame for the right view.

5 . The method according to claim 4 , wherein the signaling information includes frame flipping flag information indicating that the left view frame and the right view frame have been flipped horizontally.

6 . The method according to claim 5 , wherein the signaling information includes a supplemental enhancement information (SEI) message, and at least one of the frame packing arrangement information, the depth bit depth information and the frame flipping flag information is included in an SEI message within a video stream that includes the packing frame.

7 . The method according to claim 6 , wherein the signaling information includes a program map table (PMT), and the PMT includes frame packing flag information indicating whether the frame packing arrangement information is included in the SEI message.

8 . The method according to claim 5 , wherein at least one of the frame packing arrangement information, the depth bit depth information and the frame flipping flag information is signaled at a system level.

9 . A method for receiving a broadcast signal, the method comprising the steps of:
receiving a broadcast signal comprising a packing frame which packs at least one of a left view frame, a right view frame, a depth view frame for a left view and a depth view frame for a right view in one frame and signaling information on a view related to the packing frame; extracting at least one of the left view frame, the right view frame, the depth view frame for the left view and the depth view frame for the right view from the received packing frame; and rendering a 3D view by using the extracted at least one frame.

10 . The method according to claim 9 , wherein the packing frame is generated by mapping depth information included in the depth view frame for the left view and depth information included in the depth view frame for the right view into color spatial components indicating the packing frame in a bit unit.

11 . The method according to claim 9 , wherein the signaling information includes frame packing arrangement information indicating that the frame included in the broadcast signal is a packing frame.

12 . The method according to claim 11 , wherein the signaling information includes depth bit depth information indicating a bit depth of depth information included in the depth view frame for the left view and depth information included in the depth view frame for the right view.

13 . The method according to claim 12 , wherein the signaling information includes frame flipping flag information indicating that the left view frame and the right view frame have been flipped horizontally.

14 . The method according to claim 13 , wherein the signaling information includes a supplemental enhancement information (SEI) message, and at least one of the frame packing arrangement information, the depth bit depth information and the frame flipping flag information is included in an SEI message within a video stream that includes the packing frame.

15 . The method according to claim 14 , wherein the signaling information includes a program map table (PMT), and the PMT includes frame packing flag information indicating whether the frame packing arrangement information is included in the SEI message.

16 . The method according to claim 3 , wherein at least one of the frame packing arrangement information, the depth bit depth information and the frame flipping flag information is signaled at a system level.

17 . An apparatus for transmitting a broadcast signal, the apparatus comprising:
an encoder downsampling each of a left view frame, a right view frame, a depth view frame for a left view and a depth view frame for a right view, and encoding a packing frame which packs at least one of the downsampled frames into one frame; a broadcast signal generator generating a broadcast signal comprising signaling information for the encoded packing frame and a view related to the packing frame; and a transmitter transmitting the generated broadcast signal.

18 . An apparatus for receiving a broadcast signal, the apparatus comprising:
a receiver receiving a broadcast signal comprising a packing frame packing at least one of a left view frame, a right view frame, a depth view frame for a left view and a depth view frame for a right view in one frame and signaling information on a view related to the packing frame; an extractor extracting at least one of the left view frame, the right view frame, the depth view frame for the left view and the depth view frame for the right view from the received packing frame; and a rendering module rendering a 3D view by using the extracted at least one frame.

Assignees

• Lg Electronics Inc

Inventors

• Suh Jongyeul
• Hwang Soojin
• Lee Gyoyoon

Classifications

• H04N21/816

  involving special video data, e.g 3D video · CPC title

• H04N21/236 Primary

  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 title

• H04N21/43

  Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware {(real-time communication protocols in data switching networks H04L65/00)} · CPC title

• H04N21/2383

  Channel coding {or modulation} of digital bit-stream, e.g. QPSK modulation (arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002) · CPC title

• H04N21/4621

  Controlling the complexity of the content stream or additional data, e.g. lowering the resolution or bit-rate of the video stream for a mobile client with a small screen (arrangements for using the results of monitoring on user's side in broadcast systems H04H60/65; flow control in packet networks H04L47/10) · CPC title