Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2009-01-29
2010-06-15
Chauhan, Ulka (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C382S157000, C382S173000, C382S174000
Reexamination Certificate
active
07737975
ABSTRACT:
The normal vector information generating device generates normal vector information on the surface of an object, and includes: an image information obtaining unit obtaining information about an image of the object, the information including luminance information about luminance of light from the object and polarization information about polarization of the light; a shadow area extracting unit extracting an attached shadow area and a cast shadow area from the image based on the luminance information and the polarization information, the attached shadow area appearing on the surface of the object depending on an angle of incidence light, and the cast shadow area appearing on the surface of a material body when the light is blocked by the object; and a normal vector information generating unit generating normal vector information identifying a normal vector on the surface of the object in the attached shadow area using the polarization information.
REFERENCES:
patent: 5028138 (1991-07-01), Wolff
patent: 2006/0239584 (2006-10-01), Motomura et al.
patent: 2007/0092132 (2007-04-01), Sato et al.
patent: 2007/0222781 (2007-09-01), Kondo et al.
patent: 2009/0141027 (2009-06-01), Sato et al.
patent: 54-130976 (1979-10-01), None
patent: 5-264245 (1993-10-01), None
patent: 11-211433 (1999-08-01), None
patent: 2002-024818 (2002-01-01), None
patent: 2002-303513 (2002-10-01), None
patent: 2005-049935 (2005-02-01), None
patent: 2007-086720 (2007-04-01), None
patent: 2006/077710 (2006-07-01), None
patent: 2007/029446 (2007-03-01), None
patent: 2007/139070 (2007-12-01), None
patent: 2008/099589 (2008-08-01), None
Umeyama et al.; “Separation of Diffuse and Specular Components of Surface Reflection by Use of Polarization and Statistical Analysis of Images;” May 2004; IEEE Transactions on Pattern Analysis and Machine Intelligence; vol. 26, No. 5; pp. 639-647.
Terrier et al.; “A Device to Classify Surface Orientation from Polarization Images;” 2000; IEEE; pp. 495-498.
Rahmann, Stefan; “Polarization Images: A Geometric Interpretation for Shape Analysis;” 2000; IEEE; pp. 538-542.
Horn, Berthold; “Obtaining Shape from Shading Information;” 1989; MIT Press; pp. 115-155.
Morel et al.; “Active Lighting Applied to Shape from Polarization;” 2006; IEEE; pp. 2181-2184.
Miyazaki et al.; “Transparent Surface Modeling from a Pair of Polarization Images;” Jan. 2004; IEEE Transactions on Pattern Analysis and Machine Intelligence; vol. 26, No. 1; pp. 73-82.
Ondrej Drbohlav et al., “Using Polarization to Determine Intrinsic Surface Properties”, Proc. SPIE, vol. 3826, Jun. 1999, pp. 253-263.
Takayuki Kawashima et al., “Development of polarization imaging device and applications by using patterned polarizer,” the 2006 General Conference of the Institute of Electronics, Information and Communication, No. D-11-52, 2006, p. 52 (and its partial English translation).
Megumi Saito et al., “Measurement of Surface Orientations of Transparent Objects Using Polarization in Highlight,” the Journal of the Institute of Electronics, Information and Communication, D-II, vol. J82-D-II, No. 9, 1999, pp. 1383-1390 (and its English Abstract).
L. B. Wolff et al., “Constraining Object Features Using a Polarization Reflectance Model,” IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 13, No. 7, Jul. 1991, pp. 635-657.
Gary A. Atkinson et al., “Recovery of Surface Orientation From Diffuse Polarization,” IEEE Transactions on Image Processing, vol. 15, No. 6, Jun. 2006, pp. 1653-1664.
Daisuke Miyazaki et al., “Polarization-based Inverse Rendering from a Single View,” Proceedings of the Ninth IEEE International Conference on Computer Vision (ICCV' 03), 2003.
Kanamori Katsuhiro
Nakata Mikiya
Saito Natsuki
Sato Satoshi
Chauhan Ulka
Murdoch Crystal
Panasonic Corporation
Wenderoth , Lind & Ponack, L.L.P.
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