Patents by Inventor Leonard McMillan
Leonard McMillan 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).
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Patent number: 10867452Abstract: A computer-implemented method of and system for converting a two-dimensional drawing into a navigable three-dimensional computer graphics representation of a scene that includes inputting the two-dimensional drawing, embedding some portion of the two-dimensional drawings onto one or more two-dimensional planes, arranging the two-dimensional planes in a virtual three-dimensional space; and outputting the arranged two-dimensional planes into the three-dimensional computer graphics representation of the scene.Type: GrantFiled: March 23, 2017Date of Patent: December 15, 2020Assignee: Mental Canvas LLCInventors: Julie Dorsey, Steven Gortler, Leonard McMillan, Sydney Shea
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Patent number: 10529145Abstract: A computer-implemented method of manipulating some portion of a 3D representation of a scene from a reference view direction using a touch-sensitive display unit that includes identifying, by the touch-sensitive display unit, the portion of the 3D representation of the scene to be translated; generating and displaying on some portion of a display device of the touch-sensitive display unit a second 3D representation of the scene from an auxiliary view direction that may be selectively adjustable; and using the second 3D representation of the scene to translate the portion of the 3D representation of the scene.Type: GrantFiled: March 28, 2017Date of Patent: January 7, 2020Assignee: Mental Canvas LLCInventors: Steven Gortler, Julie Dorsey, Leonard McMillan, Duligur Ibeling
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Patent number: 10318101Abstract: A computer-implemented method and system for generating on a second canvas within a three-dimensional space a three-dimensional representation of an object disposed on a plane of a first, working canvas without leaving the plane of the first, working canvas, the method including designating an axis of rotation on the plane of the first, working canvas, e.g., a hinge function; and rotating the object about the axis of rotation, i.e., the hinge function, without the object leaving the plane of the first, working canvas.Type: GrantFiled: January 30, 2015Date of Patent: June 11, 2019Assignee: Mental Canvas LLCInventors: Leonard Mcmillan, Julie Dorsey, Steven Gortler, Fangyang Shen
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Publication number: 20170287230Abstract: A computer-implemented method of manipulating some portion of a 3D representation of a scene from a reference view direction using a touch-sensitive display unit that includes identifying, by the touch-sensitive display unit, the portion of the 3D representation of the scene to be translated; generating and displaying on some portion of a display device of the touch-sensitive display unit a second 3D representation of the scene from an auxiliary view direction that may be selectively adjustable; and using the second 3D representation of the scene to translate the portion of the 3D representation of the scene.Type: ApplicationFiled: March 28, 2017Publication date: October 5, 2017Inventors: Steven Gortler, Julie Dorsey, Leonard McMillan, Duligur Ibeling
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Publication number: 20170278310Abstract: A computer-implemented method of and system for converting a two-dimensional drawing into a navigable three-dimensional computer graphics representation of a scene that includes inputting the two-dimensional drawing, embedding some portion of the two-dimensional drawings onto one or more two-dimensional planes, arranging the two-dimensional planes in a virtual three-dimensional space; and outputting the arranged two-dimensional planes into the three-dimensional computer graphics representation of the scene.Type: ApplicationFiled: March 23, 2017Publication date: September 28, 2017Inventors: Julie Dorsey, Steven Gortler, Leonard McMillan, Sydney Shea
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Patent number: 9361727Abstract: Methods, systems, and computer readable media for generating autostereo three-dimensional views of a scene for a plurality of viewpoints are disclosed. According to one system, a display is configured to display images from plural different viewpoints using a barrier located in front of the display, where the barrier has a pseudo-random arrangement of light ports through which images on the display are viewable. A renderer coupled to the display simultaneously renders images from the different viewpoints such that pixels that should appear differently from the different viewpoints are displayed in a predetermined manner. The pseudo-random arrangement of the light ports in the barrier smoothes interference between the different viewpoints as perceived by viewers located at the different viewpoints.Type: GrantFiled: March 8, 2010Date of Patent: June 7, 2016Assignee: The University of North Carolina at Chapel HillInventors: Henry Fuchs, Leonard McMillan, Andrew Nashel
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Publication number: 20150212688Abstract: A computer-implemented method and system for generating on a second canvas within a three-dimensional space a three-dimensional representation of an object disposed on a plane of a first, working canvas without leaving the plane of the first, working canvas, the method including designating an axis of rotation on the plane of the first, working canvas, e.g., a hinge function; and rotating the object about the axis of rotation, i.e., the hinge function, without the object leaving the plane of the first, working canvas.Type: ApplicationFiled: January 30, 2015Publication date: July 30, 2015Inventors: Leonard Mcmillan, Julie Dorsey, Steven Gortler, Fangyang Shen
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Patent number: 8152305Abstract: A broadband electromagnetic wave beam is projected from a broadband wave source (301). The wave beam is separated by an element (306) into narrowband wavelength beams. The narrowband beams are directed across a predetermined area (312). A narrowband wavelength beam corresponding to a desired pixel wavelength is selected and displayed on a display surface (318).Type: GrantFiled: July 18, 2005Date of Patent: April 10, 2012Assignee: The University of North Carolina at Chapel HillInventors: Kurtis P. Keller, Henry Fuchs, Leonard McMillan, Leandra Vicci
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Publication number: 20120062565Abstract: Methods, systems, and computer readable media for generating autostereo three-dimensional views of a scene for a plurality of viewpoints are disclosed. According to one system, a display is configured to display images from plural different viewpoints using a barrier located in front of the display, where the barrier has a pseudo-random arrangement of light ports through which images on the display are viewable. A renderer coupled to the display simultaneously renders images from the different viewpoints such that pixels that should appear differently from the different viewpoints are displayed in a predetermined manner. The pseudo-random arrangement of the light ports in the barrier smoothes interference between the different viewpoints as perceived by viewers located at the different viewpoints.Type: ApplicationFiled: March 8, 2010Publication date: March 15, 2012Inventors: Henry Fuchs, Leonard McMillan, Andrew Nashel
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Publication number: 20090009723Abstract: A broadband electromagnetic wave beam is projected from a broadband wave source (301). The wave beam is separated by an element (306) into narrowband wavelength beams. The narrowband beams are directed across a predetermined area (312). A narrowband wavelength beam corresponding to a desired pixel wavelength is selected and displayed on a display surface (318).Type: ApplicationFiled: July 18, 2005Publication date: January 8, 2009Inventors: Kurtis P. Keller, Henry Fuchs, Leonard McMillan
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Patent number: 6903738Abstract: A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.Type: GrantFiled: June 17, 2002Date of Patent: June 7, 2005Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Hanspeter Pfister, Wojciech Matusik, Wai Kit Addy Ngan, Leonard McMillan, Jr., Paul Beardsley
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Patent number: 6831641Abstract: A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.Type: GrantFiled: June 17, 2002Date of Patent: December 14, 2004Assignee: Mitsubishi Electric Research Labs, Inc.Inventors: Wojciech Matusik, Hanspeter Pfister, Wai Kit Addy Ngan, Leonard McMillan, Jr., Remo Ziegler
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Patent number: 6792140Abstract: A system digitizes a three-dimensional object as a three-dimension model by placing the object on a turntable while taking two sets of corresponding images. The first set of images and the second set of images are obtained while rotating the turntable to a various positions and illuminated the object with the overhead lights and backlights. There is a one to one correspondence for images in each set for each position of the turntable. Object shape data and texture data are respectively extracted from the first and second set of images. The object shape data is correlated with the object texture data to construct the three-dimensional digital model stored in a memory of a computer system.Type: GrantFiled: April 26, 2001Date of Patent: September 14, 2004Assignee: Mitsubish Electric Research Laboratories, Inc.Inventors: Wojciech Matusik, Hanspeter Pfister, Paul Beardsley, Leonard McMillan, Jr.
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Patent number: 6791542Abstract: A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.Type: GrantFiled: June 17, 2002Date of Patent: September 14, 2004Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Wojciech Matusik, Hanspeter Pfister, Wai Kit Addy Ngan, Leonard McMillan, Jr.
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Publication number: 20030231174Abstract: A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.Type: ApplicationFiled: June 17, 2002Publication date: December 18, 2003Inventors: Wojciech Matusik, Hanspeter Pfister, Wai Kit Addy Ngan, Leonard McMillan, Remo Ziegler
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Publication number: 20030231173Abstract: A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.Type: ApplicationFiled: June 17, 2002Publication date: December 18, 2003Inventors: Wojciech Matusik, Hanspeter Pfister, Wai Kit Addy Ngan, Leonard McMillan
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Publication number: 20030231175Abstract: A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.Type: ApplicationFiled: June 17, 2002Publication date: December 18, 2003Inventors: Hanspeter Pfister, Wojciech Matusik, Wai Kit Addy Ngan, Leonard McMillan, Paul Beardsley
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Publication number: 20020159628Abstract: A system digitizes a three-dimensional object as a three-dimension model by placing the object on a turntable while taking two sets of corresponding images. The first set of images and the second set of images are obtained while rotating the turntable to a various positions and illuminated the object with the overhead lights and backlights. There is a one to one correspondence for images in each set for each position of the turntable. Object shape data and texture data are respectively extracted from the first and second set of images. The object shape data is correlated with the object texture data to construct the three-dimensional digital model stored in a memory of a computer system.Type: ApplicationFiled: April 26, 2001Publication date: October 31, 2002Applicant: Mitsubishi Electric Research Laboratories, IncInventors: Wojciech Matusik, Hanspeter Pfister, Paul Beardsley, Leonard McMillan
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Patent number: 5301136Abstract: In a digital image processing system, a dedicated inverse discrete cosine transform (IDCT) processor comprising a controller and an array of accumulators is provided for performing n.times.n inverse discrete cosine transforms. The controller controls the computation of the output vector using a forward mapping procedure. The controller causes k unique kernel values of the reconstruction kernel of each non-zero transform domain coefficient to be selectively accumulated by the array of accumulators, where k equals at most (n.sup.2 +2n)/8. The array of accumulators comprises accumulator blocks sharing an input and a control line designed to exploit the symmetry characteristics of the reconstruction kernels. Each accumulator block is designed to perform a limited number of distinct operations. The accumulator blocks are logically grouped. P symmetry selection bits and less than an operation configuration selection bits, where 2.sup.q equals n.sup.Type: GrantFiled: July 27, 1993Date of Patent: April 5, 1994Assignee: Sun Microsystems, Inc.Inventors: Leonard McMillan, Jr., Lee A. Westover
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Patent number: 5224062Abstract: In a digital image processing system, a CPU and a memory is provided to an image signal processing subsystem for computing the output vector of an inverse discrete cosine transform. The inverse discrete cosine transform is represented as a linear system and the output vector is computed using a forward mapping procedure where system matrix columns scaled by the non-zero quantized corresponding transform domain coefficient selected from the input vector are successively accumulated into the output vector. Dequantizations and scalings are performed as a combined single step by looking up the kernel values of the scaled reconstruction kernels from lookup tables corresponding to the selected transform domain coefficients' positions in the input vector. The lookup tables are highly optimized exploiting the symmetry characteristics of the reconstruction kernels, the inherent properties of quantization and the statistical attributes of the quantized transform domain coefficients.Type: GrantFiled: March 17, 1992Date of Patent: June 29, 1993Assignee: Sun Microsystems, Inc.Inventors: Leonard McMillan, Jr., Lee A. Westover