Ikko A Fushiki

US Patent:

6462748, Oct 8, 2002

Filed:

Apr 24, 2000

Appl. No.:

09/556215

Inventors:

Ikko Fushiki - Redmond WA
Andrew C. Godfrey - Redmond WA
J. Andrew Goossen - Issaquah WA
Hock San Lee - Redmond WA
Michael D. Stokes - Redmond WA
Gilman K. Wong - Redmond WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06T 1140

US Classification:

345604, 345591

Abstract:

A system and method for processing color objects provides optimal processing quality by supporting both a perceptual-based color space and a physical-based color space and utilizing both color spaces for color processing in an integrated manner transparent to the end user. The graphics engine of the system includes a module for converting a color object being processed between the perceptual-base color space and the physical-based color space. During color processing that may involve various perceptual-based and physical-based operations, the graphics engine automatically converts the color object from one of the perceptual-based and physical-based color spaces to the other depending on the color processing operation to be performed. The graphics engine may also perform conversions on input graphic data from an input device to one of the dual color spaces for processing and converting a processed class object into the color space of an output device for displaying or printing.

US Patent:

6480201, Nov 12, 2002

Filed:

Aug 24, 1999

Appl. No.:

09/382270

Inventors:

Ikko Fushiki - Redmond WA
Hock S. Lee - Redmond WA
J. Andrew Goossen - Issaquah WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06T 700

US Classification:

345592, 345631, 382245

Abstract:

An image storage and processing method constructs, clips, fills, and combines arbitrary 2-dimensional shapes in an advanced graphics system. The method supports processing of anti-aliased images by compressing the image into a novel AlphaRegion data structure. AlphaRegion encodes into the data structure both the partially transparent as well as the fully opaque alpha values of an image according to rectangular bands. A band is a contiguous series of scan lines that have the same pattern of alpha values in a single direction. AlphaRegion encoding results in a more compact representation than possible in a conventional bitmap, but without losing the anti-aliasing features. AlphaRegion can be constructed either by supersampling sub-scan lines of an image, from the scan lines of a gray-scale image, from an existing conventional 1-bit Region or alpha mask buffer, or directly from a scan-line conversion of a geometric shape. AlphaRegion stores image data into three arrays, yInfo, xInfo and alphaData. Methods provided with AlphaRegion include rendering methods for filling or clipping the area on the drawing surface and methods for combining two AlphaRegions using boolean combination operators OR, AND, XOR, SUBTRACT, or SUBTRACT_FROM.

US Patent:

6486888, Nov 26, 2002

Filed:

Aug 26, 1999

Appl. No.:

09/385665

Inventors:

Ikko Fushiki - Redmond WA
Hock S. Lee - Redmond WA
J. Andrew Goossen - Issaquah WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06T 700

US Classification:

345592, 345631

Abstract:

An image storage and processing method constructs, clips, fills, and combines arbitrary 2-dimensional shapes in an advanced graphics system. The method supports processing of anti-aliased images by compressing the image into a novel AlphaRegion data structure. AlphaRegion encodes into the data structure both the partially transparent as well as the fully opaque alpha values of an image according to rectangular bands. A band is a contiguous series of scan lines that have the same pattern of alpha values in a single direction. AlphaRegion encoding results in a more compact representation than possible in a conventional bitmap, but without losing the anti-aliasing features. AlphaRegion can be constructed either by supersampling sub-scan lines of an image, from the scan lines of a gray-scale image, from an existing conventional 1-bit Region or alpha mask buffer, or directly from a scan-line conversion of a geometric shape. AlphaRegion stores image data into three arrays, yInfo, xInfo and alphaData. Methods provided with AlphaRegion include rendering methods for filling or clipping the area on the drawing surface and methods for combining two AlphaRegions using boolean combination operators OR, AND, XOR, SUBTRACT, or SUBTRACT_FROM.

US Patent:

6748107, Jun 8, 2004

Filed:

Aug 3, 2000

Appl. No.:

09/631285

Inventors:

Ikko Fushiki - Sunnyvale CA
Hock San Lee - Sammamish WA
J. Andrew Goossen - Issaquah WA
Gary K. Starkweather - Bellevue WA
Michael D. Stokes - Redmond WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06K 900

US Classification:

382162, 382167, 382276

Abstract:

An extended colorspace which has a higher accuracy and a wider gamut than sRGB color space is disclosed. The extended color space includes an alpha channel which defines the translucency of the color image. The alpha channel is different from known alpha channels in that the inventive alpha channel can represent âsuper transparentâ and âsuper opaqueâ values by allowing the alpha parameter () to be greater than 1 and less than 0. A data structure for storing the extended colorspace information has three fields, a sign field, an integer field and a decimal field. The sign field defines whether an integer is negative or positive. The integer field defines the integer, wherein the integer defines the super or under saturated values for color and alpha components. The decimal field defines the fine detailed information for the value of the color and alpha components.

US Patent:

6803913, Oct 12, 2004

Filed:

Dec 1, 1999

Appl. No.:

09/452422

Inventors:

Ikko Fushiki - Redmond WA
Hock San Lee - Redmond WA
David Brown - Redmond WA
Bodin Dresevic - Bellevue WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06T 1100

US Classification:

345467, 345648

Abstract:

A system and method is described for manipulating text relative to a curved reference line in order to transform a character, rendered in a particular font, to generate a warped character with the degree of warping reflecting the local curvature of the curved reference line. The curvature of the reference line is reflected in the nature of quadilaterals, i. e. , quads, generated for a corresponding rectangle on a straight reference line. The coordinates of the corners of the quad provide the parameters to carry out the transformation. Such rendering improves the appearance of the text and provides a method that modifies available fonts in a flexible fashion without the need to generate new fonts.

US Patent:

6868524, Mar 15, 2005

Filed:

Oct 22, 1999

Appl. No.:

09/425132

Inventors:

Ikko Fushiki - Redmond WA, US
Hock San Lee - Redmond WA, US
Donald B. Curtis - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F015/00
G06F017/00
G06F017/21

US Classification:

715529, 715502, 715517, 715520, 715531, 382276, 382286, 382289, 382293, 382296, 345467, 345619

Abstract:

The present invention displays text within a region by identifying text boxes within the region. To identify the text boxes, the invention uses scan lines that are spaced at intervals that are smaller than the text height of the text to be placed in the boxes. These scan lines are combined to identify the full text boxes. Additionally, under the invention, a region is transformed before text boxes are generated for the region. The transform is an inverse of a text transform that is applied to the text placed in the region. This allows rotated and skewed text to be placed in the region. The invention also facilitates displaying a single text string across several disjointed regions.

US Patent:

6903742, Jun 7, 2005

Filed:

Dec 1, 1999

Appl. No.:

09/452658

Inventors:

Ikko Fushiki - Redmond WA, US
Hock San Lee - Redmond WA, US
J. Andrew Goossen - Issaquah WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06T011/20

US Classification:

345443

Abstract:

The present invention provides a method and apparatus for rendering images on a computer screen. Under the invention, a portion of a base image is described using a path. The path is then transformed using a non-affine transform to produce a transformed path. The transformed path is then rendered onto the computer screen. Another aspect of the present invention is a method and apparatus for rendering curves of any order and any dimension. In particular, the present invention provides a means for converting a function of any order and any dimension that describes one segment of a curve into a function that describes a different sized segment or an adjoining segment.

US Patent:

6937757, Aug 30, 2005

Filed:

Mar 19, 2004

Appl. No.:

10/804162

Inventors:

Ikko Fushiki - Sunnyvale CA, US
Hock San Lee - Sammamish WA, US
J. Andrew Goossen - Issaquah WA, US
Gary K. Starkweather - Bellevue WA, US
Michael D. Stokes - Eagle ID, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06K009/00

US Classification:

382162

Abstract:

An extended colorspace which has a higher accuracy and a wider gamut than sRGB color space is disclosed. The extended color space includes an alpha channel which defines the translucency of the color image. The alpha channel is different from known alpha channels in that the inventive alpha channel can represent “super transparent” and “super opaque” values by allowing the alpha parameter (α) to be greater than 1 and less than 0. A data structure for storing the extended colorspace information has three fields, a sign field, an integer field and a decimal field. The sign field defines whether an integer is negative or positive. The integer field defines the integer, wherein the integer defines the super or under saturated values for color and alpha components. The decimal field defines the fine detailed information for the value of the color and alpha components.