SYSTEM AND METHOD FOR MULTI-EXPOSURE, MULTI-FRAME BLENDING OF RED-GREEN-BLUE-WHITE (RGBW) IMAGES
A method includes obtaining multiple images of a scene using at least one red-green-blue-white (RGBW) image sensor. The method also includes generating multi-channel frames at different exposure levels from the images. The method further includes estimating motion across exposure differences between...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
05.06.2024
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Subjects | |
Online Access | Get full text |
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Summary: | A method includes obtaining multiple images of a scene using at least one red-green-blue-white (RGBW) image sensor. The method also includes generating multi-channel frames at different exposure levels from the images. The method further includes estimating motion across exposure differences between the different exposure levels using a white channel of the multi-channel frames as a guidance signal to generate multiple motion maps. The method also includes estimating saturation across the exposure differences between the different exposure levels to generate multiple saturation maps. The method further includes using the generated motion maps and saturation maps to recover saturations from the different exposure levels and generate a saturation-free RGBW frame. In addition, the method includes processing the saturation-free RGBW frame to generate a final image of the scene. |
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Bibliography: | Application Number: EP20220842424 |