Invention Grant
- Patent Title: Dynamic range extension of partially clipped pixels in captured images
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Application No.: US16353399Application Date: 2019-03-14
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Publication No.: US11074677B2Publication Date: 2021-07-27
- Inventor: Jon S. McElvain , Robin Atkins
- Applicant: Dolby Laboratories Licensing Corporation
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- Priority: EP18164973 20180329
- Main IPC: G06T5/20
- IPC: G06T5/20 ; G06T5/00

Abstract:
Methods for recovering saturated pixel values in raw pixel data are described. Given an image with raw pixel values captured using sensors with a color filter array (CFA), image regions are classified according to how many color channels of the CFA are saturated. Values of saturated pixels are estimated based on weighted color ratios of unsaturated pixels and recovered pixels. Example methods for a Bayer CFA are provided.
Public/Granted literature
- US20190304073A1 DYNAMIC RANGE EXTENSION OF PARTIALLY CLIPPED PIXELS IN CAPTURED IMAGES Public/Granted day:2019-10-03
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