US6345116B1
Expired / Lapsed
US
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Image processing apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1997-05-30
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Granted: 2002-02-05
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Expires: 2017-05-30
Abstract
Abstract By connecting correction information storing means to an exterior computer, such as a personal computer, and then utilizing the personal computer as a second image storing means, it is possible that correction information is read from the correction information storing means and M value gradation image data is read from the second image storing means, to reproduce the read M value gradation image in a state where position errors at connection part has been corrected In addition, since image data having N value smaller than M value is stored in a first image storing means that is required to be installed as an inner memory, it is possible to suppress the storage capacity of the first image storing means. As a result, the invention provides an image processing apparatus capable of reading gradation image with reduced memory costs of storing means.
Inventors
- 👤 Akio Kojima
- 👤 Yasuhiro Kuwahara
- 👤 Masao Kataoka
- 👤 Teruyuki Naka
- 👤 Thuneharu Tomita
- 👤 Atsushi Sogami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:00
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/3876; H04N1/00127; H04N1/00204; H04N1/04; H04N1/10; H04N1/107; H04N2201/00; H04N2201/0008; H04N2201/001
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
An image processing apparatus that inputs a plurality of color image data and a reading position of an image sensor corresponding to the color image data at predetermined intervals, comprising image converting means for converting the plurality of color image data into luminance image data and chrominance image data; position error detecting means for detecting a position error of the reading position of the image sensor employing the luminance image data, and calculating a position correction value for correcting the position error in a direction of suppressing; first storing means for storing the luminance image data in a first memory; and second storing means for thinning and storing the chrominance image data at each predetermined interval in a second memory, wherein a position error of the chrominance image data stored in the second memory and the luminance image data stored in the first memory are corrected employing the position correction value in order to obtain a synthesized image.
Claim 2
Dependent Claim
158 words
An image processing apparatus that inputs a plurality of color image data and a reading position of an image sensor corresponding to the color image data at predetermined intervals, comprising image converting means for converting the plurality of color image data into luminance image data and chrominance image data; position error detecting means for detecting a position error of the reading position of the image sensor employing the luminance image data, and calculating a position correction value for correcting the position error in a direction of suppressing; first storing means for storing the luminance image data in a first memory; and second storing means for thinning and storing the chrominance image data at each predetermined interval in a second memory, wherein a position error of the chrominance image data stored in the second memory and the luminance image data stored in the first memory are corrected employing the position correction value in order to obtain a synthesized image.
Claim 3
Dependent Claim
189 words
An image processing apparatus that inputs a plurality of color image data and a reading position of an image sensor corresponding to the color image data at predetermined intervals, comprising first storing means for storing the reading position of the image sensor corresponding to the color image data in a first memory at the predetermined intervals; second storing means for storing the plurality of color image data in a second memory at the predetermined intervals; and a position error detection means for, after reading an original, converting the plurality of color image data stored in the second memory to a lessor amount of image data, and detecting a position error of the reading position of the image sensor employing the image data having the lesser data amount and the reading position of the image sensor stored in the first storing means, to calculate a position correction value for correcting the position error in a direction suppressing the position error, and wherein the plurality of color image data stored in the second storing means are corrected on the basis of the position correction value to obtain a color synthesized image.
Claim 4
Dependent Claim
189 words
An image processing apparatus that inputs a plurality of color image data and a reading position of an image sensor corresponding to the color image data at predetermined intervals, comprising first storing means for storing the reading position of the image sensor corresponding to the color image data in a first memory at the predetermined intervals; second storing means for storing the plurality of color image data in a second memory at the predetermined intervals; and a position error detection means for, after reading an original, converting the plurality of color image data stored in the second memory to a lessor amount of image data, and detecting a position error of the reading position of the image sensor employing the image data having the lesser data amount and the reading position of the image sensor stored in the first storing means, to calculate a position correction value for correcting the position error in a direction suppressing the position error, and wherein the plurality of color image data stored in the second storing means are corrected on the basis of the position correction value to obtain a color synthesized image.
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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) | 2005-02-04 | 2005-08-06 | 2006-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-02-04 | 2009-08-06 | 2010-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-02-04 | 2013-08-06 | 2014-02-05 | $7700.00 | Window Closed / Lapsed |