VIDEO CAPTURE DEVICE PROVIDING MULTIPLE RESOLUTION VIDEO FEEDS

• US 20100289904A1
• Filed: 05/15/2009
• Published: 11/18/2010
• Est. Priority Date: 05/15/2009
• Status: Abandoned Application

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Yuan, Wanghong, Huitema, Christian, Zhang, Cha, Zhang, Zhengyou, Liu, Zicheng
• Application Number:
  US12/466,494
• Publication Number:
  US 20100289904A1
• Time in Patent Office: Days
• US Class Current: 348/207.1
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q
• CPC Class Codes: H04N 7/148 Interfacing a video terminal to a particular transmission medium, e.g. ISDN

Abstract

Systems are disclosed that provide improved transfer speed of video data from a video capture device to a computing device using multiple video feeds respectively comprising different resolutions. A high-resolution image sensor is used to convert light images into a high-resolution video data stream. A down sampler converts the high-resolution video data stream to a low-resolution video data stream, so that both a low-resolution data stream and a high-resolution data stream are available. While the low resolution-data stream can be sent to the computing device, a digital signal processor (DSP) processes the high-resolution video data stream in accordance with an input control signal that is comprised of desired high-resolution video stream parameters derived from the low-resolution video data stream.

Claims

1. A system for providing improved transfer speed of video data from a video capture device to a computing device using multiple video feeds respectively comprising different resolutions, comprising:

a high-resolution image sensor configured to convert light images into a high-resolution video data stream;

a down sampler configured to convert the high-resolution video data stream to a low-resolution video data stream;

a digital signal processor (DSP) configured to process the high-resolution video data stream in accordance with an input control signal comprised of desired high-resolution video stream parameters derived from the low-resolution video data stream.

2. The system of claim 1, the high-resolution image sensor configured to convert light images into a high-resolution analog video data stream, and the system comprising an analog to digital processor (ADP) configured to convert the high-resolution analog video data stream to a high-resolution digital video data stream.

3. The system of claim 2, the ADP disposed on one of:

the high-resolution image sensor; and

the DSP.

4. The system of claim 1, the high-resolution image sensor comprising one of:

a charge-coupled device (CCD); and

a complimentary metal-oxide semiconductor (CMOS).

5. The system of claim 1, the down sampler disposed on the DSP.

6. The system of claim 1, comprising an input control signal generator configured to:

analyze the low-resolution video data stream; and

provide desired high-resolution video stream parameters based on input from one or more of;

pre-configured parameters for the input control signal generator; and

a user interface (UI) operably coupled to the input control signal generator and configured to allow a user to configure parameters for the high-resolution video stream.

7. The system of claim 1, the high-resolution video stream parameters comprising parameters for a cropping window that comprises a region of interest (ROI) from the low-resolution video data stream.

8. The system of claim 6, comprising an image processing component operably coupled to the input control signal generator, and configured to analyze the low-resolution video data stream to determine image enhancement parameters for the high-resolution video stream.

9. The system of claim 6, comprising a bandwidth coordination component operably coupled to the input control signal generator, and configured to:

identify a bandwidth of data transfer between the video capture device and the computing device; and

determine high-resolution video stream parameters that facilitate transferring a high-resolution video stream ROI to the computing device in accordance with the identified bandwidth.

10. The system of claim 6, the input control signal generator disposed on the video capture device.

11. A system for providing improved transfer speed of video data from a video capture device to a computing device using multiple video feeds respectively comprising different resolutions, comprising:

a light beam splitter configured to divide an incoming light beam into two or more fractions of the incoming light beam;

a high-resolution image sensor configured to convert light images from the beam splitter into a high-resolution video data stream;

a low-resolution image sensor configured to convert light images from the beam splitter into a low-resolution video data stream;

a digital signal processor (DSP) configured to process the high-resolution video data stream in accordance with an input control signal; and

an input control signal generator configured to generate the input control signal comprised of desired high-resolution video stream parameters derived from the low-resolution video data stream.

12. The system of claim 11, the respective image sensors configured to convert light images into an analog video data stream, and the system comprising one or more analog to digital processors (ADPs) configured to convert the analog video data stream to a digital video data stream.

13. The system of claim 12, the one or more ADPs disposed on one or more of:

the high-resolution image sensor;

the low-resolution image sensor; and

the DSP.

14. The system of claim 11, the respective image sensors comprising one of:

a charge-coupled device (CCD); and

a complimentary metal-oxide semiconductor (CMOS).

15. The system of claim 11, comprising an input control signal generator configured to:

analyze the low-resolution video data stream; and

provide desired high-resolution video stream parameters based on input from one or more of;

pre-configured parameters for the input control signal generator; and

a user interface (UI) operably coupled to the input control signal generator and configured to allow a user to configure parameters for the high-resolution video stream.

16. The system of claim 11, the high-resolution video stream parameters comprising parameters for a cropping window that comprises a region of interest (ROI) from the low-resolution video data stream.

17. The system of claim 15, comprising an image processing component operably coupled to the input control signal generator, and configured to analyze the low-resolution video data stream to determine image enhancement parameters for the high-resolution video stream.

18. The system of claim 15, comprising a bandwidth coordination component operably coupled to the input control signal generator, and configured to:

identify a bandwidth of data transfer between the video capture device and the computing device; and

determine high-resolution video stream parameters that facilitate transferring a high-resolution video stream ROI to the computing device in accordance with the identified bandwidth.

19. The system of claim 15, the input control signal generator disposed on the computing device.

20. A system for providing improved transfer speed of video data from a video capture device to a computing device using multiple video feeds respectively comprising different resolutions, comprising:

a high-resolution image sensor configured to convert light images into a high-resolution analog video data stream;

one of;

a down sampler configured to convert the high-resolution digital video data stream to a low-resolution digital video data stream; and

a light beam splitter configured to divide an incoming light beam into two or more fractions of the incoming light beam, and a low-resolution image sensor configured to convert light images from the beam splitter into a low-resolution analog video data stream;

an analog to digital processor (ADP) configured to convert the analog video data stream to a digital video data stream;

a digital signal processor (DSP) configured to process the high-resolution digital video data stream in accordance with an input control signal; and

an input control signal generator configured to;

analyze the low-resolution video data stream; and

provide desired high-resolution video stream parameters based on input from one or more of;

pre-configured parameters for the input control signal generator;

a user interface (UI) operably coupled to the input control signal generator and configured to allow a user to configure parameters for the high-resolution digital video stream; and

an image processing component configured to analyze the low-resolution video data stream to determine image enhancement parameters for the high-resolution digital video stream;

the high-resolution video stream parameters comprising parameters for a cropping window that comprises a region of interest (ROI) from the low-resolution digital video data stream.