Janos Rohaly - Acton MA, US Douglas P. Hart - Charlestown MA, US Thomas J. Brukilacchio - Reading MA, US
Assignee:
3M Innovative Properties Company - St. Paul MN
International Classification:
G02B 9/08 H04N 15/00 H04N 5/225 G03B 35/00
US Classification:
359740, 348 48, 3482181, 396325
Abstract:
A three-dimensional imaging system uses a single primary optical lens along with three non-collinear apertures to obtain three offset optical channels each of which can be separately captured with an optical sensor.
Tong Zhang - Framingham MA, US Janos Rohaly - Acton MA, US Steven V. Weeks - North Andover MA, US
Assignee:
3M Innovative Properties Company - Saint Paul MN
International Classification:
G06T 15/00
US Classification:
345473, 382107, 382154, 382285, 356 12, 348169
Abstract:
Camera motion is determined in a three-dimensional image capture system using a combination of two-dimensional image data and three-dimensional point cloud data available from a stereoscopic, multi-aperture, or similar camera system. More specifically, a rigid transformation of point cloud data between two three-dimensional point clouds may be more efficiently parameterized using point correspondence established between two-dimensional pixels in source images for the three-dimensional point clouds.
Improved correlation techniques employ data from forward (template-to-reference) and reverse (reference-to-template) correlation to identify valid correlation peaks, enforce symmetry in correlation peaks, and/or combine forward and reverse correlation data. In embodiments, these techniques eliminate or reduce rms noise in a recovered signal peak location by enforcing correlation peak symmetry. The forward and reverse correlation methods described herein may be used for validation of correlation peaks, detection of outlier data points and improved interpolation, such as for higher accuracy localization of a peak center with sub-pixel resolution.
Three-Channel Camera Systems With Collinear Apertures
Janos Rohaly - Acton MA, US Douglas P. Hart - Charlestown MA, US Thomas J. Brukilacchio - Reading MA, US
Assignee:
3M Innovative Properties Company - Saint Paul MN
International Classification:
G02B 9/08 H04N 15/00 H04N 5/225 G03B 35/00
US Classification:
359740, 348 48, 3482181, 396325
Abstract:
A three-dimensional imaging system uses a single primary optical lens along with three collinear apertures to obtain three offset optical channels each of which can be separately captured with an optical sensor.
Janos Rohaly - Acton MA, US Douglas P. Hart - Charlestown MA, US Tong Zhang - Wellesley MA, US
Assignee:
3M Innovative Properties Company - Saint Paul MN
International Classification:
G06K 9/00
US Classification:
382154, 382106
Abstract:
Accuracy of a three-dimensional imaging system is improved through the use of model-based calibration and lookup tables to resolve distance according to, e. g. , x-displacement, y-displacement, or image disparity data. In an embodiment, the lookup table(s) stores localized parameterization data used to calculate calibrated results.
Three-Channel Camera Systems With Non-Collinear Apertures
Janos Rohaly - Acton MA, US Douglas P. Hart - Charlestown MA, US Thomas J. Brukilacchio - Reading MA, US
Assignee:
3M Innovative Properties Company - Saint Paul MN
International Classification:
G02B 9/00 G02B 27/10 G03B 35/00 G03B 41/00
US Classification:
359738, 359618, 396325, 396333
Abstract:
A three-dimensional imaging system uses a single primary optical lens along with three non-collinear apertures to obtain three offset optical channels each of which can be separately captured with an optical sensor.
Eric B. Paley - Cambridge MA, US Ilya A. Kriveshko - Littleton MA, US Steven V. Weeks - North Andover MA, US Edward K. Tekeian - Cambridge MA, US Janos Rohaly - Acton MA, US
The systems and methods disclosed herein provide visual feedback concerning one or more scanning parameters to a user during acquisition of a three dimensional scan.
Janos Rohaly - Acton MA, US Douglas P. Hart - Charlestown MA, US Thomas J. Brukilacchio - Reading MA, US
Assignee:
3M Innovative Properties Company - Saint Paul MN
International Classification:
G03B 9/04 H04N 15/00
US Classification:
396459, 348 49
Abstract:
A three-dimensional imaging system uses a single primary optical lens along with various configurations of apertures, refocusing facilities, and the like to obtain three offset optical channels each of which can be separately captured with an optical sensor.
Brontes Technologies, Inc. was born out of the research of Massachusetts Institute of Technology lecturer Janos Rohaly (Chief Scientist), professor Douglas Hart ...
Viztu Technologies Acquired By 3D Systems In 2012 Mar 2011 - Jul 2012
Scientific Advisor
Gelsight Mar 2011 - Jul 2012
Co-Founder, Chief Technology Officer
Janus Vision Technologies Mar 2011 - Jul 2012
Founder
Brontes Technologies Oct 2006 - Feb 2011
Chief Scientist
Brontes Technologies Feb 2004 - Oct 2006
Founder, Inventor, and Chief Scientist
Education:
Kobe University 1994 - 1999
Budapest University of Technology and Economics 1984 - 1989
Master of Science, Masters, Engineering
Skills:
Algorithms Image Processing R&D Digital Imaging Medical Devices Image Analysis Start Ups Product Development Computer Vision Software Engineering Optics Python Product Management Matlab Entrepreneurship Signal Processing Pattern Recognition Software Development Science Physics Venture Capital