Output of a video signal from decoded and derived picture information

• US 9,723,333 B2
• Filed: 08/01/2016
• Issued: 08/01/2017
• 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: Shepherd, Gregory, Rodriguez, Arturo A.
• Primary Examiner(s): Sun, Yulin
• Application Number:
  US15/224,694
• Publication Number:
  US 20160345029A1
• Time in Patent Office: 365 Days
• Field of Search: 37524001
• 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. An apparatus comprising:

a memory storage; and

a processing unit coupled to the memory storage, wherein the processing unit is operative to;

receive 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,

determine 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

output 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.

2. The apparatus of claim 1, wherein the 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.

3. The apparatus of claim 1, 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.

4. A method comprising:

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.

5. The method of claim 4, wherein the 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.

6. The method of claim 4, 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.

7. A non-transitory computer-readable medium that stores a set of instructions which when executed perform a method executed by the set of instructions comprising:

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.

8. The non-transitory computer-readable medium of claim 7, wherein the 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.

9. The non-transitory computer-readable medium of claim 7, 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.