ADAPTIVE CONTEXTUAL FILTERING BASED ON TYPOGRAPHICAL CHARACTERISTICS

• US 20110018900A1
• Filed: 10/05/2010
• Published: 01/27/2011
• Est. Priority Date: 06/26/2007
• Status: Active Grant

• Current Assignee: Zhigu Holdings Limited
• Original Assignee: Microsoft Corporation
• Inventors: Hitchcock, Gregory C., Wade, Geraldine, Matskewich, Tanya
• Granted Patent: US 7,969,441 B2
• Time in Patent Office: Days
• US Class Current: 345/619
• CPC Class Codes: G06T 2207/20012 Locally adaptive
• CPC Class Codes: G06T 5/00 Image enhancement or restoration
• CPC Class Codes: G06T 5/20 using local operators

Abstract

Selectively applying graphical filtering to a portion of an object can include accessing an object to be rendered and identifying at least one characteristic of a portion of the object. A corresponding filter is then selectively applied to the at least one determined characteristic and, in some instances, without applying the filter to at least one other portion of the object.

Claims

1. A method implemented by a computing system having a processor of selectively applying graphical filtering to a portion of a character, the method comprising:

accessing a character to be rendered;

identifying a limited portion of the character, the limited portion of the character consisting of less than the entire character and being defined by a particular characteristic, the particular characteristic comprising a typographical characteristic corresponding to the limited portion of the character, wherein the typographical characteristic comprises one of either a serif, a stroke, a stem or a diagonal and such that identifying the limited portion of the character includes distinguishing between said serif, stroke, stem or diagonal and determining whether the limited portion is either the serif, the stroke, the stem or the diagonal;

selecting a filter that has been pre-specified for the particular characteristic; and

applying the filter to the limited portion of the character, while refraining from applying the filter to the entire character, and such that a different filter will be applied depending on whether the particular characteristic is distinguished to be said serif, stroke, stem or diagonal.

2. The method of claim 1, wherein the particular characteristic comprises a serif.

3. The method of claim 1, wherein the particular characteristic comprises a diagonal.

4. The method of claim 1, wherein the particular characteristic comprises a stroke.

5. The method of claim 1, wherein the particular characteristic comprises a stem.

9. The method of claim 1, wherein the method includes receiving a user selection which identifies the particular characteristic.

10. The method of claim 1, wherein the filter is pre-selected by human determination.

11. The method of claim 1, wherein the filter is pre-specified in a filter hinting language.

12. The method of claim 11, wherein the filter is specified within the filter hinting language by human interaction

13. The method of claim 1, wherein the filter includes parameters directed to models of human visual perception.

14. The method of claim 1, wherein the filter includes parameters directed to human recognition specific to a class of objects.

15. A computer storage device comprising computer executable instructions that, when executed by one or more processor of a computing system, cause the computing system to implement the following method:

accessing a character to be rendered;

identifying a limited portion of the character, the limited portion of the character consisting of less than the entire character and being defined by a particular characteristic, the particular characteristic comprising a typographical characteristic corresponding to the limited portion of the character, wherein the typographical characteristic comprises one of either a serif, a stroke, a stem, a diagonal or other distinguishable characteristic that comprises less than the entire character and such that identifying the limited portion of the character includes distinguishing between said serif, stroke, stem, diagonal or other distinguishable characteristic and determining whether the limited portion is either the serif, the stroke, the stem, the diagonal or the other distinguishable characteristic;

selecting a filter that has been pre-specified for the particular characteristic; and

applying the filter to the limited portion of the character, while refraining from applying the filter to the entire character, and such that a different filter will be applied depending on whether the particular characteristic is distinguished to be said serif, stroke, stem, diagonal, or other distinguishable characteristic.

16. The computer storage device of claim 15, wherein the particular characteristic comprises a distance between strokes.

17. The computer storage device of claim 16, wherein the particular characteristic comprises a portion of the character falling within a defined geographic zone that covers only a portion of the character.

18. The computer storage device of claim 15, wherein said filter is a first filter and said typographic characteristic is a first typographic characteristic, and such that the first filter is applied to the first typographic characteristic, and wherein the method includes applying a second filter to a second typographic characteristic of the character and without applying either the first filter or the second filter to the entire character.

19. The computer storage device of claim 15, wherein the computer storage device comprises system memory of a computing system.

20. The computer storage device of claim 19, wherein the computer storage device comprises the one or more processor.