Method for segmenting images

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12243215
APP PUB NO 20220335595A1
SERIAL NO

17721905

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Abstract

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A method includes capturing an image of a powder bed with a visible light camera that shares an optical axis with a laser beam. The laser beam is configured for heating the powder bed. The method also includes increasing first intensities of first pixels of the image that are indicative of foreign objects within the image and normalizing second intensities of second pixels of the image that are indicative of uneven illumination of the powder bed. The method also includes processing the image via contrast limited adaptive histogram equalization after increasing the first intensities and after normalizing the second intensities. The method also includes using graph-based image segmentation to identify third pixels of the image that correspond to an area of the powder bed that has been processed by the laser beam and indicating the third pixels via a user interface.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF WASHINGTONSUITE 200 1124 COLUMBIA STREET SEATTLE WA 98195

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xu Seattle, US 406 3483
Jiang, Tianyu Seattle, US 21 368
Leng, Mengying Seattle, US 1 0

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