Visual dynamic range timestamp to enhance data coherency and potential of metadata using delay information

• US 9,549,197 B2
• Filed: 08/01/2011
• Issued: 01/17/2017
• Est. Priority Date: 08/16/2010
• Status: Active Grant

• Current Assignee: Dolby Laboratories Licensing Corporation (Dolby Laboratories Incorporated)
• Original Assignee: Dolby Laboratories Licensing Corporation (Dolby Laboratories Incorporated)
• Inventors: Messmer, Neil W., Wilson, Brent
• Primary Examiner(s): Patel, Jay
• Assistant Examiner(s): Suh, Joseph
• Application Number:
  US13/195,300
• Publication Number:
  US 20120038782A1
• Time in Patent Office: 1,996 Days
• Field of Search: 375/219, 375/240.26, 340/435, 348/43, 709/203, 382/232, 398/41
• US Class Current: 1/1
• CPC Class Codes: H04N 19/467 characterised by the embedded information being invisible, e.g. watermarking
• 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

Abstract

A system and method for enhancing data coherency and potential of at least one metadata associated with a video data configured to operate in a visual dynamic range (VDR) format are detailed. One system embodiment employs a metadata framing structure which includes a header start of frame bit set, a packet type bit set, a configuration bit set, a variable depth configuration/metadata bit set, a header end of frame bit set, a timestamp bit set for specifying a frame delay count to apply the at least one metadata to the video data and a checksum check bit set. The at least one metadata is designed to embed within a code word guard bit position of at least one color channel of the video data and adaptable to embed within the VDR pipeline to enhance the quality of the video data.

Claims

1. A system for enhancing data coherency and potential of at least one metadata associated with a video data configured to operate in a visual dynamic range (VDR) format, the system comprising:

a video encoder configured to associate video data with at least one metadata, the metadata further comprising;

a metadata framing structure defined to include;

a header start of frame bit set for identifying a start of the metadata framing structure;

a packet type bit set for defining a payload and format of a subsequent metadata;

a configuration bit set for defining a configurable portion of the metadata framing structure;

a variable length configuration/metadata payload associated with the video data and at least one metadata associated with the video data;

a header end of frame bit set for identifying an end of the header;

a timestamp bit set for specifying a frame delay count to apply the at least one metadata to the video data; and

a checksum check bit set for verifying data contained in the metadata framing structure;

whereby metadata is embedded within a code word guard bit of at least one color channel of the video data.

2. The system of claim 1, wherein the Least Significant Bit (LSB) of a pixel value in each color channel is utilized for non-VDR formats.

3. The system of claim 1 wherein the code word guard bit is adaptable to carry the at least one metadata having potentially high bandwidth.

4. The system of claim 1 wherein the metadata framing structure is designed to operate with at least one metadata transporting interface.

5. The system according to claim 4, wherein the metadata transporting interface is selected from a group consisting of high definition multimedia interface (HDMI), digital visual interface (DVI), serial digital interface (SDI) and high-definition serial digital interface (HD-SDI).

6. The system according to claim 4, wherein the metadata transporting interface comprises a display port.

7. The system of claim 1 wherein the packet type bit set is defined to characterize the data transmitted within a data payload.

8. The system of claim 1 wherein the configuration bit set enables an optional framing in the metadata framing structure.

9. The system of claim 1 wherein the timestamp bit set provides a reference to align the at least one metadata with the video data for maintaining the data coherency.