D4d Technologies, LLC

Ati Technologies Ulc

Radu Gheorghe

Mark S Quadling

Henley S Quadling

Rod A Duncan

Ye Li

Andrei Tchouprakov

Roman Sokolov

Milivoje M Aleksic

Sergio Goma

An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device captures images of an object of interest, e.g., patient teeth or associated anatomy, by projecting the light source as a first series of frames, and a second series of frames. The first series of frames projects first pattern data, and the second series of frames projects second data. The second series of frames are interleaved between frames in the first series of frames. The frames in the first series are partially-illuminated and are used to capture data for a 3D model. The frames in the second series are preferably fully-illuminated and are used to generate a live preview of the object. By displaying the live preview frames in juxtaposition to the 3D model, the operator is provided with visual feedback of the object.

Intra-oral scanning device with illumination frames interspersed with image frames

An image noise filter includes a wavelet transform module and an edge based adaptive filter module. The dual tree wavelet transform module provides low frequency wavelet information and high frequency wavelet information in response to image information. The edge based adaptive filter module provides filtered high frequency wavelet information in response to the high frequency wavelet information and edge information that is based on the low frequency wavelet information.

Image noise filter and method

Growing community of inventors

Richardson, TX, United States of America

Radu Gheorghe