METHOD AND APPARATUS FOR ENCODING AND DECODING HOPPING DEFAULT VIEW FOR MULTIPLE CAMERAS SYSTEM

• US 20090201992A1
• Filed: 10/04/2006
• Published: 08/13/2009
• Est. Priority Date: 10/07/2005
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute, kwangwoon university research institute for industry cooperation
• Original Assignee: Electronics and Telecommunications Research Institute, kwangwoon university research institute for industry cooperation
• Inventors: Park, Sea-Nae, Kim, Wook-Joong, Kim, Kyu-Heon, Kang, Kyeong-Ok, Hong, Jin-Woo, Seo, Jeong-Il, Lee, Yung-Lyul, Oh, Seoung-Jun, Ahn, Chang-Beom, Sim, Dong-Gyu
• Application Number:
  US12/089,401
• Publication Number:
  US 20090201992A1
• Time in Patent Office: Days
• US Class Current: 375/240.160
• CPC Class Codes: H04N 21/21805 enabling multiple viewpoints, e.g. using a plurality of cameras
• CPC Class Codes: H04N 21/23424 involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
• CPC Class Codes: H04N 21/2365 Multiplexing of several video streams
• CPC Class Codes: H04N 21/2383 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 Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/4312 involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
• CPC Class Codes: H04N 21/4314 for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/44016 involving splicing one content stream with another content stream, e.g. for substituting a video clip

Abstract

Provided is a multiple camera system, and more particularly, a method and apparatus for processing hopping default views in an apparatus for encoding/decoding video streams of multiple view positions. The encoding apparatus for the multiple camera system includes an encoder for receiving video signals of multiple view positions, and encoding the video signals based on a predetermined default Group of Pictures (GoP); a default GoP selector for providing the default GoP information to the encoder; and a multiplexer for multiplexing the encoded video signals and sequentially outputting only the default GoP.

Claims

1. An encoding apparatus for a multiple camera system, comprising:

an encoder for receiving video signals of multiple view positions, and encoding the video signals based on a predetermined default Group of Pictures (GoP);

a default GoP selector for providing the default GoP information to the encoder; and

a multiplexer for multiplexing the encoded video signals and sequentially outputting only the default GoP.

2. The encoding apparatus as recited in claim 1, wherein the default GoP is encoded with no reference to video signals of another view position.

3. The encoding apparatus as recited in claim 1, wherein the default GoP is changed with a GoP of another view position for each predetermined time duration.

4. The encoding apparatus as recited in claim 1, wherein the GoP bitstreams outputted from the encoder include a flag for indicating whether the GoP bitstreams are of a default view.

5. The encoding apparatus as recited in claim 4, wherein the multiplexer sequentially outputs only the default GoP based on a value of the flag.

6. A decoding apparatus for a multiple camera system, comprising:

a receiver for sequentially receiving encoded default GoP with no reference to video signals of another view position;

a decoder for decoding the received signals; and

a display for showing the decoded video signals.

7. The decoding apparatus as recited in claim 6, wherein the default GoP is changed with video signals of another view position for each predetermined time duration.

8. A multiple camera system, comprising:

an encoder for receiving video signals of multiple view positions, and encoding the multi-view video signals based on predetermined default Group of Pictures (GoP) information;

a GoP selector for providing the default GoP information to the encoder;

a multiplexer for multiplexing the encoded video signals and sequentially outputting only a default GoP; and

a decoder for receiving, decoding, and displaying the sequentially outputted default GoP.

9. An encoding apparatus for a multiple camera system, comprising:

an encoder for receiving video signals of multiple view positions, and encoding the video signals based on a predetermined default Group of Pictures (GoP) and a default stereo GoP;

a GoP selector for providing the predetermined default GoP information and the default stereo GoP information to the encoder; and

a multiplexer for multiplexing the encoded video signals and sequentially outputting only a default GoP and a default stereo GoP corresponding to the default GoP.

10. The encoding apparatus as recited in claim 9, wherein the default GoP is encoded with no reference to video signals of another view position.

11. The encoding apparatus as recited in claim 9, wherein the default GoP is changed with a GoP of another view position for each predetermined time duration.

12. The encoding apparatus as recited in claim 9, wherein the default stereo GoP is encoded with reference to the default GoP of the same time duration.

13. The encoding apparatus as recited in claim 9, wherein the GoP bitstreams outputted to the encoder includes a flag for indicating any one between a default view and a default stereo view.

14. A decoding apparatus for a multiple camera system, comprising:

a receiver for sequentially receiving a default Group of Pictures (GoP) encoded with no reference to video signals of another view position and a default stereo GoP of the same time duration which refers to the default GoP;

a decoder for decoding the received signals; and

a display for showing stereo video signals based on the decoded signals.

15. The decoding apparatus as recited in claim 14, wherein the default GoP is changed with a GoP of another view position for each predetermined time duration.

16. The decoding apparatus as recited in claim 14, wherein the decoder decodes the default stereo GoP with reference to the default GoP.

17. A multiple camera system, comprising:

an encoder for receiving video signals of multiple view positions, and encoding the multi-view video signals based on predetermined default Group of Pictures (GoP) information and a predetermined default stereo GoP information;

a default GoP selector for providing the default GoP information and the default stereo GoP information to the encoder;

a multiplexer for multiplexing the encoded video signals and sequentially outputting only a default GoP and a default stereo GoP corresponding to the default GoP; and

a decoder for receiving and decoding the multiplexed output signals, and displaying stereo video signals based on the decoded signals.

18. A multiple camera system, comprising:

an encoder for receiving and encoding video signals of multiple view positions;

a default view encoder for encoding predetermined default view information;

a multiplexer for multiplexing the encoded multi-view video signals and the encoded default view information, and outputting multiplexed signals; and

a view-hopping video playing apparatus for displaying the video signals based on the default view information.

19. The multiple camera system as recited in claim 18, wherein the default view is changed with a view of another view position for each predetermined time duration.

20. An encoding method for a multiple camera system, comprising the steps of:

a) providing predetermined default Group of Pictures (GoP) information;

b) receiving video signals of multiple view positions, and encoding the video signals based on the default GoP information; and

c) multiplexing the encoded video signals, and sequentially outputting only a default GoP.

21. The encoding method as recited in claim 20, wherein the default GoP is encoded with no reference to video signals of another view position.

22. The encoding method as recited in claim 20, wherein the default GoP is changed with a GoP of another view position for each predetermined time duration.

23. The encoding method as recited in claim 20, wherein the encoded GoP bitstreams include a flag for indicating whether the encoded GoP bitstreams are of a default view.

24. A decoding method for a multiple camera system, comprising the steps of:

a) sequentially receiving a default Group of Pictures (GoP) encoded with no reference to video signals of another view point;

b) decoding the received signals; and

c) displaying the decoded video signals.

25. The decoding method as recited in claim 24, wherein the default GoP is changed with video signals of another view position for each predetermined time duration.

26. An encoding method for a multiple camera system, comprising the steps of:

a) providing predetermined default Group of Pictures (GoP) information and default stereo GoP information to an encoder;

b) receiving video signals of multiple view positions, and encoding the video signals based on the default GoP information and the default stereo GoP information; and

c) multiplexing the encoded video signals, and sequentially outputting only a default GoP and a default stereo GoP corresponding to the default GoP.

27. The encoding method as recited in claim 26, wherein the default GoP is encoded with no reference to video signals of another view position.

28. The encoding method as recited in claim 26, wherein the default GoP is changed with a GoP of another view position for each predetermined time duration.

29. The encoding method as recited in claim 26, wherein the default stereo GoP is encoded with reference to the default GoP of the same time duration.

30. The encoding method as recited in claim 26, wherein the encoded GoP bitstreams include a flag for indicating whether the encoded GoP bitstreams are of a default view or of a default stereo view.

31. A decoding method for a multiple camera system, comprising the steps of:

a) sequentially receiving a default Group of Pictures (GoP) encoded with no reference to video signals of another view position, and a default stereo GoP of the same time duration which refers to the default GoP;

b) decoding the received signals; and

c) displaying stereo video signals based on the decoded signals.

32. The decoding method as recited in claim 31, wherein the default GoP is changed with a GoP of another view position for each predetermined time duration.

33. The decoding method as recited in claim 31, wherein the default stereo GoP is decoded with reference to the default GoP in the decoding step b).

34. A method for providing a default view in a multiple camera system, comprising the steps of:

a) receiving and encoding video signals of multiple view positions;

b) encoding predetermined default view information;

c) multiplexing and outputting the encoded multi-view video signals and the default view information; and

d) displaying the video signals based on the default view information.