Projected texture pattern for intra-oral 3D imaging

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United States of America Patent

PATENT NO 11918439
APP PUB NO 20210361395A1
SERIAL NO

16977365

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Abstract

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Apparatus for powder-free intra-oral 3D imaging by using a projected texture pattern. A projector projects a random texture pattern of light to teeth to be imaged, and a digital image sensor receives the projected texture pattern from the teeth. The reflected pattern of light reflects and scatters from the teeth. The texture pattern can be a grid having clusters of bright and dark blocks in a pseudo-random arrangement and can provide for powder-free intra-oral 3D imaging by using the pattern to optically simulate powder applied to the teeth. Polarizers can be used in the optical path to transmit the directly reflected light to the image sensor and suppress or discard some of the unwanted scattered light.

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Patent Owner(s)

Patent OwnerAddress
MEDIT CORP13F 8 YANGPYEONG-RO 25-GIL YEONGDEUNGPO-GU SEOUL 07207 07207

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kastanek, Amanda L Saint Paul, US 1 0
Scott, Shannon D Hudson, US 18 89
Stegall, David B Saint Paul, US 16 165

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