System and Method for Using Coded Data From a Video Source to Compress a Media Signal

• US 20090290645A1
• Filed: 04/27/2009
• Published: 11/26/2009
• Est. Priority Date: 05/21/2008
• Status: Abandoned Application

• Current Assignee: Broadcast International, Inc. (Creative Realities, Inc.)
• Original Assignee: Broadcast International, Inc. (Creative Realities, Inc.)
• Inventors: Mabey, Danny L.
• Application Number:
  US12/430,505
• Publication Number:
  US 20090290645A1
• Time in Patent Office: Days
• US Class Current: 375/240.25
• CPC Class Codes: H04N 19/114 Adapting the group of pictures [GOP] structure, e.g. number of B-frames between two anchor frames H04N19/107 takes precedence
• CPC Class Codes: H04N 19/117 Filters, e.g. for pre-processing or post-processing sub-band filter banks H04N19/635
• CPC Class Codes: H04N 19/12 Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
• CPC Class Codes: H04N 19/136 Incoming video signal characteristics or properties
• CPC Class Codes: H04N 19/179 the unit being a scene or a shot
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices

Abstract

Systems and methods disclosed herein create encoder sensitive video using single and/or bidirectional communication links between a video source and an encoding process to pass metadata (e.g., instructions and cues related to the video stream) to an encoder. A video system includes a video source to generate an uncompressed video stream and metadata corresponding to one or more characteristics of the uncompressed video stream. The video source may include, for example, a video camera or video editing equipment. The metadata may be based on a position, state, movement or other condition of the video source. The system also includes a codec communicatively coupled to the video source. The codec receives the uncompressed video stream and compresses it based on the one or more characteristics indicated in the metadata.

Claims

1. A video system comprising:

a video camera to generate an uncompressed video stream and metadata, the metadata corresponding to one or more characteristics of the uncompressed video stream based on at least one of the video camera'"'"'s position, state, or movement; and

a codec communicatively coupled to the video camera, the codec configured to;

receive the uncompressed video stream and the metadata from the video camera; and

compress the uncompressed video stream based on the one or more characteristics of the uncompressed video stream included in the metadata.

2. The video system of claim 1, further comprising a sensor for generating at least a portion of the metadata.

3. The video system of claim 2, wherein the sensor provides motion information selected from the group comprising pan, tilt, zoom, and vibration.

4. The video system of claim 2, wherein the sensor is selected from the group comprising an accelerometer, a gyroscope, and a light sensor.

5. The video system of claim 2, wherein the video camera and the sensor are both configured to be attached to a tripod.

6. The video system of claim 2, wherein the sensor is located within the video camera.

7. The video system of claim 1, wherein the video camera is selected from the group comprising a charge-coupled device, and an active pixel sensor.

8. The video system of claim 7, wherein the video camera is configured to generate a requested pattern or set of digital data for compression based on a user selection.

9. The video system of claim 1, further comprising:

a video communication link for communicating the uncompressed video stream from the video camera to the codec; and

a metadata communication link for communicating the metadata from the video camera to the codec.

10. The video system of claim 1, wherein the metadata is included in a header of a packet, wherein the packet includes a video payload for communicating a portion of the uncompressed video stream between the video camera and the codec.

11. The video system of claim 1, wherein the one or more characteristics corresponding to the metadata are selected from the group comprising scene transition, start of a recording segment, stop of a recording segment, focus, vibration stabilization, luminas variants, chroma change, noise control, brightness, audio volume, bass/treble balance, audio right and left balance, use of beam splitters, and use of grid filters.

12. The video system of claim 1, wherein the codec is further configured to send control data to the video camera to thereby adjust the one or more characteristics of the uncompressed video stream.

13. A video compression method comprising:

generating an uncompressed video stream and metadata using a video camera, the metadata corresponding to one or more characteristics of the uncompressed video stream based on at least one of the video camera'"'"'s position, state, or movement;

transmitting the uncompressed video stream and metadata to a codec; and

compressing the uncompressed video stream using the codec based on the one or more characteristics of the uncompressed video stream included in the metadata.

14. The method of claim 13, further comprising;

sensing data related to at least one of the camera'"'"'s position, state, or movement; and

generating the sensed data based on the sensed data.

15. The method of claim 14, wherein sensing data comprises sensing the video camera'"'"'s operation selected from the group comprising pan, tilt, zoom, and vibration.

16. The method of claim 14, further comprising attaching the video camera and a sensor to a tripod.

17. The method of claim 13, wherein transmitting the uncompressed video stream and metadata to a codec comprises:

establishing a first communication link for communicating the uncompressed video stream from the video camera to the codec; and

establishing a second communication link for communicating the metadata from the video camera to the codec.

18. The method of claim 13, wherein transmitting the uncompressed video stream and metadata to a codec comprises generating a data packet comprising a video payload for a portion of the uncompressed video stream and a header for the metadata.

19. The method of claim 13, wherein the one or more characteristics corresponding to the metadata are selected from the group comprising scene transition, start of a recording segment, stop of a recording segment, focus, vibration stabilization, luminas variants, chroma change, noise control, brightness, audio volume, bass/treble balance, audio right and left balance, use of beam splitters, use of grid filters to determine field of motion parameters, file size, encoding time, price, and quality.

20. The method of claim 13, further comprising transmitting control data from the codec to the video camera to thereby adjust the one or more characteristics of the uncompressed video stream.

21. A video system comprising:

means for generating an uncompressed video stream and metadata, the metadata corresponding to one or more characteristics of the uncompressed video stream as provided by the means for generating; and

means for compressing the uncompressed video stream based on the one or more characteristics of the uncompressed video stream included in the metadata.

22. The video system of claim 21, further comprising means for sensing data used for generating at least a portion of the metadata.

23. The video system of claim 22, wherein the means for sensing provides motion information selected from the group comprising pan, tilt, zoom, and vibration.

24. The video system of claim 22, wherein the means for generating the uncompressed video stream and the means for sensing are both configured to be attached to a tripod.

25. The video system of claim 22, wherein the means for sensing is located within the means for generating the uncompressed video stream.

26. The video system of claim 21, wherein the means for generating the uncompressed video stream and the metadata comprises a video camera.

27. The video system of claim 26, wherein the video camera is selected from the group comprising a charge-coupled device, and an active pixel sensor.

28. The video system of claim 21, wherein the means for generating the uncompressed video stream and the metadata comprises video editing equipment.

29. The video system of claim 21, further comprising:

means for communicating the uncompressed video stream from the video camera to the codec; and

means for communicating the metadata from the video camera to the codec.

30. The video system of claim 21, further comprising means for including the metadata in a header of a packet, wherein the packet includes a video payload for communicating a portion of the uncompressed video stream between the video camera and the codec.

31. The video system of claim 21, wherein the one or more characteristics corresponding to the metadata are selected from the group comprising scene transition, start of a recording segment, stop of a recording segment, focus, vibration stabilization, luminas variants, chroma change, noise control, brightness, audio volume, bass/treble balance, audio right and left balance, use of beam splitters, and use of grid filters.

32. The video system of claim 21, wherein the means for compressing is further configured to send control data to the means for generating the uncompressed video and the metadata to thereby adjust the one or more characteristics of the uncompressed video stream.