Invention Application
- Patent Title: USING METADATA FOR DC OFFSET CORRECTION FOR AN AC-COUPLED VIDEO LINK
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Application No.: US16566135Application Date: 2019-09-10
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Publication No.: US20200137350A1Publication Date: 2020-04-30
- Inventor: Isaac MOLINA HERNANDEZ , Niall D. O'Connell , Sean M. MULLINS
- Applicant: Analog Devices Global Unlimited Company
- Applicant Address: BM Hamilton
- Assignee: Analog Devices Global Unlimited Company
- Current Assignee: Analog Devices Global Unlimited Company
- Current Assignee Address: BM Hamilton
- Main IPC: H04N7/08
- IPC: H04N7/08 ; H04N7/14 ; H04N11/08 ; H04N9/81 ; H04N21/4363

Abstract:
Disclosed herein are systems and methods for performing DC offset correction of a video signal received over an AC-coupled video link. In one aspect, a transmitter is configured to compute, and provide to a receiver, metadata indicative of a statistical characteristic (e.g., an average or a sum of values) for a group of active pixels of a video signal acquired by a camera. The receiver is configured to compute an analogous statistical characteristic on the video signal received over an AC-coupled video link, and to perform DC offset correction by modifying one or more values of the received video signal based on a comparison of the statistical characteristic computed by the receiver and the one computed by the transmitter and indicated by the received metadata.
Public/Granted literature
- US10750118B2 Using metadata for DC offset correction for an AC-coupled video link Public/Granted day:2020-08-18
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