STEGALL, DAVID B.,SCOTT, SHANNON D.,KASTANEK, AMANDA L.
申请号：
CA3092639
公开号：
CA3092639A1
申请日:
2019.02.07
申请国别(地区):
CA
年份:
2019
代理人:
摘要：
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.
