Granted Patent B2

US 8,699,794 · App. 13/735,843 · Granted Apr 15, 2014

Abstract

Claims (56)

1. A computer-implemented method for variably rendering a passage of text, the method comprising:

for each glyph of a plurality of glyphs of the passage of text:

obtaining, by the computer, a glyph representation corresponding to a current glyph, said glyph representation comprising a set of two dimensional coordinates; and

varying, by the computer, said set of two dimensional coordinates according to a geometric transformation to obtain a varied glyph representation, said geometric transformation having been determined from statistical measurements of at least one geometric property from an ensemble of representations of said current glyph; and

generating, by the computer, renderable output data comprising each varied glyph representation, such that when the passage of text is rendered to an output device, a given rendered representation of a given glyph subtly differs from other rendered representations of said given glyph according to said at least one geometric property.

2. The method of claim 1 , wherein varying said set of two dimensional coordinates according to said geometric transformation comprises:

determining at least one geometric variation function; and

transforming said set of two dimensional coordinates according to said at least one geometric variation function to obtain a variant glyph representation of said current glyph that differs from said glyph representation according to said at least one geometric property.

3. The method of claim 2 , further comprising:

obtaining at least one image of handwritten text; and

identifying a plurality of glyph representations of each glyph, as depicted in said at least one image of handwritten text.

4. The method of claim 3 , wherein identifying said plurality of glyph representations comprises:

segmenting said at least one image of handwritten text into at least one disjoint component image corresponding to a plurality of individual glyphs connected by a plurality of ligatures;

sectioning said at least one disjoint component image into a plurality of non-overlapping segments; and

determining a set of one or more adjacent non-overlapping segments corresponding to each of said plurality of individual glyphs.

5. The method of claim 3 , wherein said at least one geometric variation function is determined based at least in part on said plurality of glyph representations.

6. The method of claim 3 , wherein identifying said plurality of glyph representations comprises selecting said glyph representation from among said plurality of glyph representations.

7. The method of claim 1 , further comprising providing said renderable output data to said output device.

8. The method of claim 1 , wherein said at least one geometric property comprises a geometric property selected from a group consisting of:

a glyph position-above-a-baseline property;

a glyph size property; and

a glyph orientation property.

9. A computing apparatus comprising a processor and a memory having stored thereon instructions that when executed by the processor, configure the apparatus to perform a method for variably rendering a passage of text, the method comprising:

for each glyph of a plurality of glyphs of the passage of text:

obtaining a glyph representation corresponding to a current glyph, said glyph representation comprising a set of two dimensional coordinates; and

varying said set of two dimensional coordinates according to a geometric transformation to obtain a varied glyph representation, said geometric transformation having been determined from statistical measurements of at least one geometric property from an ensemble of representations of said current glyph; and

generating renderable output data comprising each varied glyph representation, such that when the passage of text is rendered to an output device, a given rendered representation of a given glyph subtly differs from other rendered representations of said given glyph according to said at least one geometric property.

10. The apparatus of claim 9 , wherein varying said set of two dimensional coordinates according to said geometric transformation comprises:

determining at least one geometric variation function; and

transforming said set of two dimensional coordinates according to said at least one geometric variation function to obtain a variant glyph representation of said current glyph that differs from said glyph representation according to said at least one geometric property.

11. The apparatus of claim 10 , the method further comprising:

obtaining at least one image of handwritten text; and

identifying a plurality of glyph representations of each glyph, as depicted in said at least one image of handwritten text.

12. The apparatus of claim 11 , wherein identifying said plurality of glyph representations comprises:

segmenting said at least one image of handwritten text into at least one disjoint component image corresponding to a plurality of individual glyphs connected by a plurality of ligatures;

sectioning said at least one disjoint component image into a plurality of non-overlapping segments; and

determining a set of one or more adjacent non-overlapping segments corresponding to each of said plurality of individual glyphs.

13. The apparatus of claim 11 , wherein said at least one geometric variation function is determined based at least in part on said plurality of glyph representations.

14. The apparatus of claim 11 , wherein identifying said plurality of glyph representations comprises selecting said glyph representation from among said plurality of glyph representations.

15. A non-transient computer-readable storage medium having stored thereon instructions that when executed by a processor, configure the processor to perform a method for variably rendering a passage of text, the method comprising:

for each glyph of a plurality of glyphs of the passage of text:

obtaining a glyph representation corresponding to a current glyph, said glyph representation comprising a set of two dimensional coordinates; and

varying said set of two dimensional coordinates according to a geometric transformation to obtain a varied glyph representation, said geometric transformation having been determined from statistical measurements of at least one geometric property from an ensemble of representations of said current glyph; and

generating renderable output data comprising each varied glyph representation, such that when the passage of text is rendered to an output device, a given rendered representation of a given glyph subtly differs from other rendered representations of said given glyph according to said at least one geometric property.

16. The storage medium of claim 15 , wherein varying said set of two dimensional coordinates according to said geometric transformation comprises:

determining at least one geometric variation function; and

transforming said set of two dimensional coordinates according to said at least one geometric variation function to obtain a variant glyph representation of said current glyph that differs from said glyph representation according to said at least one geometric property.

17. The storage medium of claim 16 , the method further comprising:

obtaining at least one image of handwritten text; and

identifying a plurality of glyph representations of each glyph, as depicted in said at least one image of handwritten text.

18. The storage medium of claim 17 , wherein identifying said plurality of glyph representations comprises:

segmenting said at least one image of handwritten text into at least one disjoint component image corresponding to a plurality of individual glyphs connected by a plurality of ligatures;

sectioning said at least one disjoint component image into a plurality of non-overlapping segments; and

determining a set of one or more adjacent non-overlapping segments corresponding to each of said plurality of individual glyphs.

19. The storage medium of claim 17 , wherein said at least one geometric variation function is determined based at least in part on said plurality of glyph representations.

20. The storage medium of claim 17 , wherein identifying said plurality of glyph representations comprises selecting said glyph representation from among said plurality of glyph representations.

Assignments (6)