54. Spectral color - imaging colorimeter - 2011

54. Spectral color - imaging colorimeter - 2011 - Imaging...

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Unformatted text preview: Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 1 Imaging Colorimetry using a Digital Camera with Dental Applications Jan P. Allebach School of Electrical and Computer Engineering Purdue University 5 November 2002 Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 2 Applications of tooth colorimetry: assessment of efficacy of whitening agents Before After Image obtained from: http://www.westcentraldental.com/cosmetic.htm Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 3 Applications of tooth colorimetry: matching color of restored tooth to neighbors Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 4 Colorimetry research at Purdue Phase I Development of theoretical framework for model-based colorimetry system and filter design Simulation results only M. Wolski, C. A. Bouman, and J. P. Allebach, Optimization of Sensor Response Functions for Colorimetry of Reflective and Emissive Objects, IEEE Trans. on Image Processing , Vol. 5, pp. 507-517, March 1996. Phase II Application to colorimetry with a digital camera Characterization of digital camera Regression-based approach Experimental results with color patches and extracted teeth W. Wu, J. P. Allebach, M. Analoui, Imaging Colorimetry Using a Digital Camera, Journal of Imaging Science and Technology, Special issue on color imaging, Vol. 44, pp. 267-279, July/August 2000. Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 5 Colorimetry research at Purdue (cont.) Phase III Refinement of experimental system Development of reflectance estimation based approach Experimental results with extracted and live teeth D.Y. Ng, J. P. Allebach, Z. Pizlo, and M. Analoui, Non- Contact Colorimeter for Human Tooth Color Assessment using a Digital Camera, Proceedings of the IS&T/SID 10 th Color Imaging Conference , Scottsdale, AZ, 12 November 15 November 2002. Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 6 Collaborators/Sponsors Mark Wolski,General Motors Research Laboratory Color Savvy Systems,Inc. Indiana University School of Dentistry Dr. Mostafa Analoui, (now withPfizer,Inc.) Dr. George Stookey Indiana 21st Century Fund Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 7 Synopsis What is color? Phase II System architecture Filter design Preliminary results Phase III System refinement Clinical system Experimental results Future research (Phase IV?) Imaging Colorimetry using a Digital Camera with Dental Applications Procter & Gamble - 5 November 2002 8 What does color mean?...
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54. Spectral color - imaging colorimeter - 2011 - Imaging...

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