Patent US7088388B2 successfully refreshed from Google Patents.
US7088388B2
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Method and apparatus for calibrating a sensor for highlights and for processing highlights
Assignee: Monument Peak Ventures LLC
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Filing: 2002-02-07
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Granted: 2006-08-08
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Expires: 2022-02-07
Abstract
Abstract A method and apparatus for calibrating a sensor for highlights and for processing highlights is described. In an embodiment, a method includes identifying highlight regions in an image of a scene. The method further includes calculating flare intensity values for the image using the locations of the highlight regions. The method also includes subtracting the flare intensity values from the image.
Inventors
- 👤 Steven D. MacLean
- 👤 Roger A. Morton
- 👤 Kenneth A. Parulski
- 👤 Nestor M. Rodriguez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:49
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; H; H04; H04N; H04N25/00; H04N25/50; H04N25/57; H04N25/58; H04N25/581; H04N25/583; H04N25/585
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
An electronic camera, comprising: a multi-mode image sensor having an array of light sensitive elements, wherein the sensor provides an output signal derived from the array, and wherein the output signal has a transfer function that includes a normal sensitivity region, a highlight sensitivity region, and a breakpoint between the regions; and a correction circuit for correcting differences between breakpoints of the transfer function, wherein the differences are caused by different light sensitive elements of the array, and wherein the correction circuit includes at least one lookup table, wherein the at least one lookup table has an input to identify a plurality of particular light sensitive elements of the array, and wherein the at least one lookup table has an output to provide a same cluster identifier for each of the plurality of particular light sensitive elements.
Claim 2
Dependent Claim
137 words
An electronic camera, comprising: a multi-mode image sensor having an array of light sensitive elements, wherein the sensor provides an output signal derived from the array, and wherein the output signal has a transfer function that includes a normal sensitivity region, a highlight sensitivity region, and a breakpoint between the regions; and a correction circuit for correcting differences between breakpoints of the transfer function, wherein the differences are caused by different light sensitive elements of the array, and wherein the correction circuit includes at least one lookup table, wherein the at least one lookup table has an input to identify a plurality of particular light sensitive elements of the array, and wherein the at least one lookup table has an output to provide a same cluster identifier for each of the plurality of particular light sensitive elements.
Claim 3
Dependent Claim
50 words
An electronic camera as recited in claim 1 , wherein the correction circuit includes a second lookup table, wherein the second lookup table has an input to identify a particular light sensitive element of the array, and wherein the second lookup table has an output to provide a correction value.
References Cited (Backward Citations)
US4051458A
Cited
US4479062A
Cited
US4652735A
Cited
US5010504A
Cited
US5247366A
Cited
US5151588A
Cited
US5055667A
Cited
US5047861A
Cited
US5260592A
Cited
US5280354A
Cited
US5235197A
Cited
US5221848A
Cited
US5631705A
Cited
US6040858A
Cited
US6028299A
Cited
US6088059A
Cited
US5982424A
Cited
US6831692B1
Cited
US6252536B1
Cited
US6069377A
Cited
US6697114B1
Cited
US6809768B1
Cited
US6765611B1
Cited
US20040130638A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-08-07 | 2010-02-06 | 2010-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-08-07 | 2014-02-06 | 2014-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-08-07 | 2018-02-06 | 2018-08-08 | $7700.00 | Window Closed / Lapsed |