US5311329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital filtering for lenticular printing
Assignee: Microsoft Technology Licensing LLC
•
Filing: 1991-08-28
•
Granted: 1994-05-10
•
Expires: 2011-08-28
Abstract
Abstract A method is provided which sharpens three-dimensional images by using an unsharp masking technique subsequent to interleaving and before printing.
Inventors
- 👤 Paul E. Haeberli
- 👤 Leonard J. Flory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:34
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/14; H; H04; H04N; H04N1/00; H04N1/40; G03B35/18; G03B35/24; H04N1/409; H04N1/4092
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
105 words
A method of producing a high resolution hardcopy image comprising: interleaving a plurality of images to form a composite; and performing an unsharp masking technique on said composite, wherein said step of performing an unsharp masking technique includes: determining an intensity value "i" on a first waveform representing an original image; blurring said original image to provide a second waveform; determining a second intensity value "b" on said second waveform corresponding to said "i"; determining a blending factor "a"; and determining a resulting intensity value "h" on a third waveform representing said image having sharpened edges, said "h" corresponding to said "i" and said "b".
Claim 2
Independent Claim
105 words
A method of producing a high resolution hardcopy image comprising: interleaving a plurality of images to form a composite; and performing an unsharp masking technique on said composite, wherein said step of performing an unsharp masking technique includes: determining an intensity value "i" on a first waveform representing an original image; blurring said original image to provide a second waveform; determining a second intensity value "b" on said second waveform corresponding to said "i"; determining a blending factor "a"; and determining a resulting intensity value "h" on a third waveform representing said image having sharpened edges, said "h" corresponding to said "i" and said "b".
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein said step of blurring said original image includes convolving said first waveform with a Gaussian-shaped waveform.
Claim 4
Dependent Claim
18 words
The method of claim 2 wherein said Gaussian-shaped waveform represents a filter kernel which scans said original image.
Claim 5
Dependent Claim
13 words
The method of claim 3 wherein said filter kernel is one pixel high.
Claim 6
Dependent Claim
19 words
The method of claim 4 wherein a blurred kernel and an input kernel are derived from said filter kernel.
Claim 7
Dependent Claim
15 words
The method of claim 5 wherein said blurred kernel and said input kernel are normalized.
Claim 8
Dependent Claim
44 words
The method of claim 6 wherein "k i " represents a value of one pixel of said input kernel, and "k b " represents a value of one pixel of said blurred kernel which corresponds to said "k i " of said input kernel.
Claim 9
Dependent Claim
53 words
The method of claim 7 wherein "k h " represents a value of one pixel of an unsharp masking kernel which corresponds to said "k i " of said input kernel and said "k b " of said blurred kernel, wherein said "k h " is derived using the following equation: k.sub.h =((1-a)×k.sub.i)+(a×k.sub.b)
Claim 10
Dependent Claim
16 words
The method of claim 8 wherein said unsharp masking kernel is represented by a function curve.
Claim 11
Dependent Claim
28 words
The method of claim 9 wherein said step of determining said resulting intensity value "h" on said third waveform includes convolving said function curve with said second waveform.
Claim 12
Independent Claim
160 words
A method of producing three-dimensional hardcopy images comprising: digitizing and storing a plurality of generated images captured on frames; determining a common point to said plurality of frames; creating multiple images from off-axis perspective projections using said common point; storing said images; interleaving said images to form a composite; performing an unsharp masking technique on said composite to produce a sharper image; printing said sharper image using a hardcopy output device; and laminating said sharper image onto a lenticular surface, wherein said step of performing an unsharp masking technique on said composite includes: determining an intensity value "i" on a first waveform representing an original image; blurring said original image to provide a second waveform; determining a second intensity value "b" on said second waveform corresponding to said "i"; determining a blending factor "a"; and determining a resulting intensity value "h" on a third waveform representing said image having sharpened edges, said "h" corresponding to said "i" and said "b".
Claim 13
Independent Claim
160 words
A method of producing three-dimensional hardcopy images comprising: digitizing and storing a plurality of generated images captured on frames; determining a common point to said plurality of frames; creating multiple images from off-axis perspective projections using said common point; storing said images; interleaving said images to form a composite; performing an unsharp masking technique on said composite to produce a sharper image; printing said sharper image using a hardcopy output device; and laminating said sharper image onto a lenticular surface, wherein said step of performing an unsharp masking technique on said composite includes: determining an intensity value "i" on a first waveform representing an original image; blurring said original image to provide a second waveform; determining a second intensity value "b" on said second waveform corresponding to said "i"; determining a blending factor "a"; and determining a resulting intensity value "h" on a third waveform representing said image having sharpened edges, said "h" corresponding to said "i" and said "b".
Claim 14
Dependent Claim
12 words
The method of claim 11 wherein said blending factor "a" is negative.
Claim 15
Dependent Claim
26 words
The method of claim 12 further including the step of increasing said blurring of said original image by increasing the magnitude of said blending factor "a".
Claim 16
Dependent Claim
27 words
The method of claim 13 further including the step of accentuating the peaks of said third waveform by increasing the negative value of said blending factor "a".
Claim 17
Independent Claim
158 words
A method of producing three-dimensional hardcopy images to be implemented using a computer comprising: digitizing and storing a plurality of generated image captured on frames; determining a common point to said plurality of frames; creating multiple images from off-axis perspective projections using said common point; storing said images; interleaving said images to form a composite; performing an unsharp masking technique on said composite to produce a sharper image; and printing said sharper image using a hardcopy output device; wherein said step of performing an unsharp masking technique on said composite includes: determining an intensity value "i" on a first waveform representing an original image; blurring said original image to provide a second waveform; determining a second intensity value "b" on said second waveform corresponding to said "i"; determining a blending factor "a"; and determining a resulting intensity value "h" on a third waveform representing said image having sharpened edges, said "h" corresponding to said "i" and said "b".
Claim 18
Independent Claim
158 words
A method of producing three-dimensional hardcopy images to be implemented using a computer comprising: digitizing and storing a plurality of generated image captured on frames; determining a common point to said plurality of frames; creating multiple images from off-axis perspective projections using said common point; storing said images; interleaving said images to form a composite; performing an unsharp masking technique on said composite to produce a sharper image; and printing said sharper image using a hardcopy output device; wherein said step of performing an unsharp masking technique on said composite includes: determining an intensity value "i" on a first waveform representing an original image; blurring said original image to provide a second waveform; determining a second intensity value "b" on said second waveform corresponding to said "i"; determining a blending factor "a"; and determining a resulting intensity value "h" on a third waveform representing said image having sharpened edges, said "h" corresponding to said "i" and said "b".
Claim 19
Dependent Claim
21 words
The method of claim 15 wherein said step of performing an unsharp masking technique is facilitated by the following equation: h=((1-a)×i)+(a×b).
References Cited (Backward Citations)
US4954912A
Cited
US5113213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-09 | 1997-11-08 | 1998-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-09 | 2001-11-08 | 2002-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-09 | 2005-11-08 | 2006-05-10 | $7700.00 | Window Closed / Lapsed |