Patents by Inventor Andrei Tchouprakov
Andrei Tchouprakov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230233295Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device has a reduced form factor as compared to prior devices, and it provides for more efficient transmission and capture of images.Type: ApplicationFiled: April 3, 2023Publication date: July 27, 2023Inventors: Ye Li, Gregory R. Basile, Rod A. Duncan, Justin G. Graham, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Andrei Tchouprakov, Lasse H. Toimela
-
Patent number: 11648095Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device has a reduced form factor as compared to prior devices, and it provides for more efficient transmission and capture of images.Type: GrantFiled: August 9, 2018Date of Patent: May 16, 2023Assignee: D4D Technologies, LLCInventors: Ye Li, Gregory R. Basile, Rod A. Duncan, Justin G. Graham, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Andrei Tchouprakov, Lasse H. Toimela
-
Publication number: 20190046302Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device has a reduced form factor as compared to prior devices, and it provides for more efficient transmission and capture of images.Type: ApplicationFiled: August 9, 2018Publication date: February 14, 2019Inventors: Ye Li, Gregory R. Basile, Rod A. Duncan, Justin G. Graham, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Andrei Tchouprakov, Lasse H. Toimela
-
Publication number: 20160330355Abstract: A technique to enable an existing monochrome camera in an intra-oral scanner to capture color images without making hardware changes to the camera. This operation is achieved by retrofitting a “tip” assembly of the scanner with red, green and blue light emitting diodes (LEDs), and then driving those diodes to illuminate the scene being captured by the scanner. Electronics in or associated with the scanner are operative to synchronize the LEDs to the frame capture of the monochrome camera in the device. A color image is created by combining the red-, green- and blue-illuminated images. Thus, color imagery is created from a monochrome camera and, in particular, by illuminating the screen with specific colors while the camera captures images. In this manner, single colored images are captured and combined into full color images. The system captures the color images with full resolution and sensitivity, thus producing higher quality full color images.Type: ApplicationFiled: March 9, 2016Publication date: November 10, 2016Inventors: Andrei Tchouprakov, Greg Basile, Mark S. Quadling, Henley S. Quadling, Rod Duncan, Ye Li, Grant Kenworthy
-
Patent number: 9364300Abstract: 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.Type: GrantFiled: June 29, 2015Date of Patent: June 14, 2016Assignee: D4D Technologies, LLCInventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
-
Publication number: 20150297324Abstract: 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.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
-
Patent number: 9066772Abstract: 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.Type: GrantFiled: February 4, 2014Date of Patent: June 30, 2015Assignee: D4D Technologies, LLCInventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
-
Publication number: 20140248576Abstract: 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.Type: ApplicationFiled: February 4, 2014Publication date: September 4, 2014Applicant: D4D Technologies, LLCInventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
-
Patent number: 8532355Abstract: Methods, systems, and devices for generating textured 3D models are provided. The present disclosure describes methods, systems, and devices for combining multiple images onto a 3D model. In some instances, the textures of the images are applied to the 3D model dynamically so that the textured 3D model is viewable from different viewpoints in real time on a display. The present disclosure also describes methods, systems, and devices for selecting the images and, in particular, the portions of the selected images to map to defined portions of the 3D model. In addition, the present disclosure describes how to adjust the images themselves to remove the effects of directional lighting. Some aspects of the present disclosure are particularly useful in the context of a 3D modeling of dental preparations. In some instances, a 3D digitizer is used to produce 3D models of dental preparations.Type: GrantFiled: March 22, 2012Date of Patent: September 10, 2013Assignee: D4D Technologies, LLCInventors: Mark Quadling, Andrei Tchouprakov, Gary Severance, Glen Freeman
-
Publication number: 20120236117Abstract: Methods, systems, and devices for generating textured 3D models are provided. The present disclosure describes methods, systems, and devices for combining multiple images onto a 3D model. In some instances, the textures of the images are applied to the 3D model dynamically so that the textured 3D model is viewable from different viewpoints in real time on a display. The present disclosure also describes methods, systems, and devices for selecting the images and, in particular, the portions of the selected images to map to defined portions of the 3D model. In addition, the present disclosure describes how to adjust the images themselves to remove the effects of directional lighting. Some aspects of the present disclosure are particularly useful in the context of a 3D modeling of dental preparations. In some instances, a 3D digitizer is used to produce 3D models of dental preparations.Type: ApplicationFiled: March 22, 2012Publication date: September 20, 2012Applicant: D4D Technologies, LLCInventors: Mark Quadling, Andrei Tchouprakov, Gary Severance, Glen Freeman
-
Patent number: 8144954Abstract: Methods, systems, and devices for generating textured 3D models are provided. The present disclosure describes methods, systems, and devices for combining multiple images onto a 3D model. In some instances, the textures of the images are applied to the 3D model dynamically so that the textured 3D model is viewable from different viewpoints in real time on a display. The present disclosure also describes methods, systems, and devices for selecting the images and, in particular, the portions of the selected images to map to defined portions of the 3D model. In addition, the present disclosure describes how to adjust the images themselves to remove the effects of directional lighting. Some aspects of the present disclosure are particularly useful in the context of a 3D modeling of dental preparations.Type: GrantFiled: November 7, 2008Date of Patent: March 27, 2012Assignee: D4D Technologies, LLCInventors: Mark Quadling, Andrei Tchouprakov, Gary Severance, Glen Freeman
-
Patent number: 7978892Abstract: A structured light pattern digitizing method is combined with photogrammetry to determine a 3D model of an object. The structured light digitizing operation generates a 3D model of the object being scanned, and this model is then used to compute a higher accuracy model using photogrammetry.Type: GrantFiled: October 24, 2007Date of Patent: July 12, 2011Assignee: D4D Technologies, LLCInventors: Mark S. Quadling, Henley S. Quadling, Ye Li, Andrei Tchouprakov
-
Publication number: 20090129882Abstract: Methods, systems, and devices for monitoring tool breakage and wear in a dental milling machine are provided. In one embodiment, a dental milling system includes a milling tool for milling a dental prosthetic and a spindle operable to receive, fixedly engage, and rotate the milling tool. A first accelerometer is positioned adjacent to the spindle and is operable to detect vibrations associated with rotation of the milling tool. A processor is in communication with the first accelerometer to receive data sets representative of the vibrations detected by the first accelerometer. The processor processes the data sets to identify changes in one or more harmonics of the detected vibrations indicative of a break of the milling tool.Type: ApplicationFiled: November 14, 2008Publication date: May 21, 2009Applicant: D4D TECHNOLOGIES, LLCInventors: Andrei Tchouprakov, Roman Sokolov, Greg Radighieri
-
Publication number: 20090123045Abstract: Methods, systems, and devices for generating textured 3D models are provided. The present disclosure describes methods, systems, and devices for combining multiple images onto a 3D model. In some instances, the textures of the images are applied to the 3D model dynamically so that the textured 3D model is viewable from different viewpoints in real time on a display. The present disclosure also describes methods, systems, and devices for selecting the images and, in particular, the portions of the selected images to map to defined portions of the 3D model. In addition, the present disclosure describes how to adjust the images themselves to remove the effects of directional lighting. Some aspects of the present disclosure are particularly useful in the context of a 3D modeling of dental preparations.Type: ApplicationFiled: November 7, 2008Publication date: May 14, 2009Applicant: D4D TECHNOLOGIES, LLCInventors: Mark Quadling, Andrei Tchouprakov, Gary Severance, Glen Freeman
-
Publication number: 20080101688Abstract: A structured light pattern digitizing method is combined with photogrammetry to determine a 3D model of an object. The structured light digitizing operation generates a 3D model of the object being scanned, and this model is then used to compute a higher accuracy model using photogrammetry.Type: ApplicationFiled: October 24, 2007Publication date: May 1, 2008Applicant: D4D TECHNOLOGIES, LLCInventors: Mark S. Quadling, Henley S. Quadling, Ye Li, Andrei Tchouprakov