Reconstructing a multi-latticed video signal

• US 9,407,935 B2
• Filed: 12/30/2014
• Issued: 08/02/2016
• Est. Priority Date: 06/17/2008
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Rodriguez, Arturo A., Shepherd, Gregory
• Primary Examiner(s): Sun, Yulin
• Application Number:
  US14/585,312
• Publication Number:
  US 20150117552A1
• Time in Patent Office: 581 Days
• Field of Search: 375/240.01
• US Class Current: 1/1
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04N 19/65 using error resilience
• CPC Class Codes: H04N 19/66 involving data partitioning, i.e. separation of data into packets or partitions according to importance
• CPC Class Codes: H04N 19/895 in combination with error concealment
• CPC Class Codes: H04N 21/26275 for distributing content or additional data in a staggered manner, e.g. repeating movies on different channels in a time-staggered manner in a near video on demand system
• CPC Class Codes: H04N 21/64322 IP

Abstract

An apparatus for facilitating reception of multiple representations of a video signal. In one embodiment, the apparatus includes a mechanism for receiving plural representations of the video signal corresponding to plural decimated versions of the video signal, associating pictures of the received plural representations of the video signal, and outputting pictures corresponding to information from associated pictures in accordance with a relative temporal order.

Claims

1. A method for reconstructing and outputting a received multi-latticed video signal, the method comprising:

receiving a video stream, wherein the video stream includes one or more representations of a video signal, wherein each of the one or more representations of the video signal (OOMROTVS) includes a respective sequence of pictures, wherein each picture of each of the OOMROTVS represents a respectively corresponding picture of the video signal;

generating plural decompressed pictures of the OOMROTVS, wherein each of the plural decompressed pictures is a decompressed version of a respectively corresponding received picture of the OOMROTVS, wherein each decompressed picture represents the same picture of the video signal as its respectively corresponding received picture; and

determining plural sets of one or more associated pictures, wherein each picture in each determined set of one or more associated pictures (DSOOOMAP) represents the same respective picture of the video signal, wherein each respective DSOOOMAP includes at most one picture of each of the OOMROTVS; and

outputting plural reconstructed pictures, wherein each of the plural reconstructed pictures respectively corresponds to a DSOOOMAP, wherein each of the plural reconstructed pictures comprises information corresponding to one or more decompressed pictures of its respectively corresponding DSOOOMAP.

2. The method of claim 1, wherein over a first time interval a first representation of the video signal (FROTVS) is received in the video stream, wherein over a second interval a second representation of the video signal (SROTVS) is received in the video stream, wherein the received FROTVS includes at least an impaired portion, wherein each successive received picture of the FROTVS and each successive received picture of the SROTVS are determined to be associated pictures, and further comprising:

outputting reconstructed pictures corresponding to the associated pictures of the FROTSVS and SROTVS without information corresponding to decompressed pictures from the at least impaired portion of the FROTSVS.

3. The method of claim 1, wherein each of the plural reconstructed pictures is reconstructed in accordance with plural pixel sampling lattices (PPSL), wherein each of the PPSL is associated with a respectively corresponding representation of a video signal, and wherein the number of pixel sampling lattices in the PPSL is greater than the number of representations of the video signal in the received video stream.

4. The method of claim 1, wherein each of the plural reconstructed pictures is reconstructed in accordance with plural pixel sampling lattices (PPSL), wherein each of the PPSL is associated with a decimated version of each respective picture of the video signal, and wherein each picture in each DSOOOMAP corresponds to a decimated version of each respective picture of the video signal.

5. The method of claim 4, wherein a first reconstructed pictures comprises information corresponding to a first plurality of decompressed pictures, and wherein the number of decompressed pictures in the first plurality of decompressed pictures equals the number of pixel sampling lattices in the PPSL.

6. The method of claim 5, wherein a second reconstructed pictures comprises information corresponding to a second plurality of decompressed pictures, and wherein the number of decompressed pictures in the second plurality of decompressed pictures is less than the number of pixel sampling lattices in the PPSL.

7. The method of claim 5, wherein each decompressed picture in the second plurality of decompressed pictures respectively corresponds one of the PPSL, wherein the second reconstructed pictures further comprises of derived information from the second plurality of decompressed pictures, and wherein the derived information is included in pixel locations of the second reconstructed picture corresponding to a subset of the PPSL not corresponding to second plurality of decompressed pictures.

8. An apparatus for reconstructing and outputting plural representations of a video signal in a video stream, the apparatus comprising:

a processor;

a processor-readable medium including one or more instructions for;

receiving a video stream, wherein the video stream includes plural representations of a video signal, wherein each of the plural representations of the video signal (PROTVS) includes a respective sequence of compressed pictures, wherein each of the PROTVS is associated with a respective pixel sampling lattice used to decimate each picture of the video signal, wherein each compressed picture of each of the PROTVS represents a respectively corresponding decimated picture of the video signal;

determining plural sets of one or more associated compressed pictures of the PROTVS, wherein each compressed picture in each determined set of one or more associated compressed pictures (DSOOOMACP) represents the same respective picture of the video signal, wherein each respective DSOOOMACP includes at most one received compressed picture of each of the PROTVS; and

outputting plural pictures, wherein each output picture respectively corresponds to a DSOOOMACP, wherein a first plurality of pixels of each output picture comprises of information corresponding to the respective decompressed version of the compressed pictures in the respectively corresponding DSOOOMACP, and a second plurality of the pixels of each output picture comprises of information derived from the compressed pictures in the respectively corresponding DSOOOMACP.

9. The apparatus of claim 8, wherein second plurality of the pixels of each output picture corresponds to impaired pixels in the one or more received compressed pictures that represent the same respective picture of the video signal.

10. The apparatus of claim 8, wherein the number of compressed pictures in at least one DSOOOMACP respectively corresponding to an output picture is less than a number of compressed pictures in plural transmitted representations of a video signal in the video stream.

11. An apparatus for reconstructing and outputting plural representations of a video signal in a video stream, the apparatus comprising:

a processor;

a processor-readable medium including one or more instructions for;

receiving a video stream, wherein the video stream includes one or more representations of a video signal, wherein each of the one or more representations of the video signal (OOMROTVS) includes a respective sequence of pictures, wherein each picture of each of the OOMROTVS represents a respectively corresponding picture of the video signal;

generating plural decompressed pictures of the OOMROTVS, wherein each of the plural decompressed pictures is a decompressed version of a respectively corresponding received picture of the OOMROTVS, wherein each decompressed picture represents the same picture of the video signal as its respectively corresponding received picture; and

determining plural sets of one or more associated pictures, wherein each picture in each determined set of one or more associated pictures (DSOOOMAP) represents the same respective picture of the video signal, wherein each respective DSOOOMAP includes at most one picture of each of the OOMROTVS; and

outputting plural reconstructed pictures, wherein each of the plural reconstructed pictures respectively corresponds to a DSOOOMAP, wherein each of the plural reconstructed pictures comprises information corresponding to one or more decompressed pictures of its respectively corresponding DSOOOMAP.

12. The apparatus of claim 11, wherein over a first time interval a first representation of the video signal (FROTVS) is received in the video stream, wherein over a second interval a second representation of the video signal (SROTVS) is received in the video stream, wherein the received FROTVS includes at least an impaired portion, wherein each successive received picture of the FROTVS and each successive received picture of the SROTVS are determined to be associated pictures, and further comprising:

outputting reconstructed pictures corresponding to the associated pictures of the FROTSVS and SROTVS without information corresponding to decompressed pictures from the at least impaired portion of the FROTSVS.

13. The apparatus of claim 11, wherein each of the plural reconstructed pictures is reconstructed in accordance with plural pixel sampling lattices (PPSL), wherein each of the PPSL is associated with a respectively corresponding representation of a video signal, and wherein the number of pixel sampling lattices in the PPSL is greater than the number of representations of the video signal in the received video stream.

14. The apparatus of claim 11, wherein each of the plural reconstructed pictures is reconstructed in accordance with plural pixel sampling lattices (PPSL), wherein each of the PPSL is associated with a decimated version of each respective picture of the video signal, and wherein each picture in each DSOOOMAP corresponds to a decimated version of each respective picture of the video signal.

15. The apparatus of claim 14, wherein a first reconstructed pictures comprises information corresponding to a first plurality of decompressed pictures, and wherein the number of decompressed pictures in the first plurality of decompressed pictures equals the number of pixel sampling lattices in the PPSL.

16. The apparatus of claim 15, wherein a second reconstructed pictures comprises information corresponding to a second plurality of decompressed pictures, and wherein the number of decompressed pictures in the second plurality of decompressed pictures is less than the number of pixel sampling lattices in the PPSL.

17. The apparatus of claim 15, wherein each decompressed picture in the second plurality of decompressed pictures respectively corresponds one of the PPSL, wherein the second reconstructed pictures further comprises of derived information from the second plurality of decompressed pictures, and wherein the derived information is included in pixel locations of the second reconstructed picture corresponding to a subset of the PPSL not corresponding to second plurality of decompressed pictures.

18. The apparatus of claim 11, wherein the number of compressed pictures in at least one DSOOOMACP respectively corresponding to an output picture is less than a number of compressed pictures in plural transmitted representations of a video signal in the video stream.

19. The apparatus of claim 11, wherein the video stream is comprised of frames, wherein matrices of each frame include 4×

4 non-overlapping groups of adjacent or contiguous pixels.

20. The apparatus of claim 11, wherein the video stream is comprised of frames, wherein matrices of each frame include alternating mapped matrices in scan order that differ in size.