METHOD FOR EMBEDDING VIDEO ANNOTATION DATA INTO A CODED VIDEO STREAM AND VIDEO RECORDING DEVICE

• US 20110206356A1
• Filed: 04/20/2007
• Published: 08/25/2011
• Est. Priority Date: 04/20/2007
• Status: Active Grant

• Current Assignee: Interdigital Vc Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: Thomson Licensing SA (Vantiva SA)
• Inventors: Chen, Zhibo, Chen, Qu Qing, Gu, Xiao Dong
• Granted Patent: US 8,457,468 B2
• Time in Patent Office: Days
• US Class Current: 386/356
• CPC Class Codes: G06F 16/71 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: H04N 19/00 Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards
• CPC Class Codes: H04N 21/23892 involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73
• CPC Class Codes: H04N 21/8451 using Advanced Video Coding [AVC]

Abstract

The invention concerns a method for embedding video annotation data into a coded video stream. The method comprises the step of—encapsulating said video annotation data into a unit, so-called video annotation unit, of the coded video data stream which format corresponds to at least one format used for sending the associated video data,—inserting an identifiable synchronizing code enabling the identification of said video annotation unit into the video data stream.

Claims

1. Method for embedding video annotation data into a coded video stream, wherein it comprises the steps of

encapsulating said video annotation data into a unit, so-called video annotation unit, of the coded video data stream which format corresponds to at least one format used for sending the associated video data,

inserting an identifiable synchronizing code enabling the identification of said video annotation unit into the video data stream.

2. Method according to claim 1 wherein said video annotation unit is a frame.

3. Method according to claim 1 wherein said video annotation unit is a slice.

4. Method according to claim 1 wherein said video data is compliant with ITU-T H.264 standard, said identifiable synchronizing code being defined in as a Network adaptation Layer unit type.

5. Method according to claim 1 wherein said video data is compliant with MPEG-2 ISO/IEC-13818-2 standard, said unit format being a slice and said identifiable synchronizing code being a “

slice_start_code”

header.

6. Method according to claim 1 wherein said video data is compliant with MPEG-2 ISO/IEC-13818-2 standard, said unit format being a frame and said identifiable synchronizing code being a “

picture_start_code”

header defined in MPEG-2 ISO/IEC-13818-2 standard.

7. Method according to claim 1 wherein it further comprises the steps of

measuring the entropy of said video data frames,

inserting said video annotation data into the data streams at time intervals depending on said measured entropy.

8. Method according to claim 1 wherein the video annotation data comprise information chosen among:

color information,

texture information,

motion information,

textual semantic information,

fingerprint information,

or chosen among any combination of these information.

9. Video recording device wherein it comprises the steps of

receiving a video encoded data stream,

decoding an identifiable synchronizing code identifying a video annotation unit

decoding only said data video annotation unit in said received video encoded data stream,

indexing said received video data stream according to said decoded video annotation unit.