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

US9066772B2 · kind B2 · utility

Assignee

• D4D Technologies, LLC · US

Inventors

• Andrei Tchouprakov · Plano, US
• Radu Gheorghe · Richardson, US
• Roman Sokolov · Batumi, GE
• Mark Quadling · Plano, US
• Henley Quadling · Addison, US
• Rod Duncan · Lucas, US
• Ye Li · Plano, US

Key dates

• Filing date: Feb 4, 2014
• Grant date: Jun 30, 2015
• Expiry date: Feb 4, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/0066
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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.