US5465155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex film scanning
Assignee: International Business Machines Corp
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Filing: 1994-06-08
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Granted: 1995-11-07
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Expires: 2014-06-08
Abstract
Abstract A system for electronically developing an image captured on a film with two or more image capture layers. A developing solution is applied to the film and the film is illuminated by two lights on opposing surfaces. A scanner captures the light reflected from the film by each light source. The two digital images are combined on a pixel-by-pixel basis to form a final image. An alternate embodiment includes a third scanner to capture light transmitted through the film in order to form a third digital scan image which is then combined on a pixel-by-pixel basis with the other two images to form the final image. The invention provides a method for creating an image digitally without first creating an image in the film itself.
Inventors
- 👤 Albert D. Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:35
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00127; H04N1/00249; H04N1/00259; H04N1/00262; H04N1/00795; H04N1/40; H04N1/46; H04N1/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
158 words
A system for electronically developing an image captured on a film having two or more image capture layers, the system comprising: development means for applying a developing solution to said film; a first light source for illuminating said film with a first light; a first scanner for digitally capturing said first light reflected from said film during development to form a first digital scan image having a plurality of pixels; a second light source for illuminating said film with a second light, said second light source oriented to scan a surface of said film opposite a surface scanned by said first light source; and a second scanner for digitally capturing said second light reflected from said film during development to form a second digital scan image having a plurality of pixels; digital image combination means for forming a final image by digitally combining a pixel from each of said digital scan images to form a final image pixel.
Claim 2
Independent Claim
158 words
A system for electronically developing an image captured on a film having two or more image capture layers, the system comprising: development means for applying a developing solution to said film; a first light source for illuminating said film with a first light; a first scanner for digitally capturing said first light reflected from said film during development to form a first digital scan image having a plurality of pixels; a second light source for illuminating said film with a second light, said second light source oriented to scan a surface of said film opposite a surface scanned by said first light source; and a second scanner for digitally capturing said second light reflected from said film during development to form a second digital scan image having a plurality of pixels; digital image combination means for forming a final image by digitally combining a pixel from each of said digital scan images to form a final image pixel.
Claim 3
Dependent Claim
37 words
The system of claim 1, further comprising: a third scanner for digitally capturing said first or said second light transmitted through said film during development to form a third digital scan image having a plurality of pixels.
Claim 4
Dependent Claim
15 words
The system of claim 2, wherein said digital image combination means comprise computer logic means.
Claim 5
Dependent Claim
34 words
The system of claim 2, wherein said digital combination means comprises logic means for determining three color values for each final image pixel based on said scanned image pixel values using cube root regression.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-06 | 1999-05-08 | 1999-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-06 | 2003-05-08 | 2003-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-06 | 2007-05-08 | 2007-11-07 | $7700.00 | Window Closed / Lapsed |