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US6658170B1
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Image processing apparatus and image processing method
Assignee: Canon Inc
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Filing: 1998-11-23
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Granted: 2003-12-02
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Expires: 2018-11-23
Abstract
Abstract In an image processing apparatus, after a current band of an image has been read, an original is fed at a distance of the upper half band width of the current band. When the next band is read, the current band at the lower half band width is overlappingly read. The band data at the lower half band width of the current band is stored in a memory, and the next band is read. Averaging processing or function processing is applied to the band data which has been overlappingly read.
Inventors
- 👤 Akihiko Nakatani
- 👤 Tadashi Yamamoto
- 👤 Kiyoshi Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:14
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/12; H04N1/126; H04N1/128; H04N1/19; H04N1/191; H04N1/1911; H04N1/40; H04N2201/00; H04N2201/04; H04N2201/0402; H04N2201/0414
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
142 words
An image processing apparatus comprising: a reading unit adapted to read an original at a predetermined reading width in a main scanning direction; a controlling unit adapted to control said reading unit and the original so as to move relative to each other in the main scanning direction and a sub scanning direction, where, in a first main scanning direction, said reading unit reads the original at the predetermined reading width and, in the sub scanning direction, said original is fed by 1/x (x is a real number larger than 1) of the predetermined reading width, and in a subsequent main scanning direction, said reading unit overlappingly reads the original at the predetermined reading width; and an image processing unit adapted to apply predetermined image processing to an overlapped part of the image data of the original read by said reading unit.
Claim 2
Dependent Claim
142 words
An image processing apparatus comprising: a reading unit adapted to read an original at a predetermined reading width in a main scanning direction; a controlling unit adapted to control said reading unit and the original so as to move relative to each other in the main scanning direction and a sub scanning direction, where, in a first main scanning direction, said reading unit reads the original at the predetermined reading width and, in the sub scanning direction, said original is fed by 1/x (x is a real number larger than 1) of the predetermined reading width, and in a subsequent main scanning direction, said reading unit overlappingly reads the original at the predetermined reading width; and an image processing unit adapted to apply predetermined image processing to an overlapped part of the image data of the original read by said reading unit.
Claim 3
Dependent Claim
19 words
An image processing apparatus according to claim 1 , wherein 1/x is equal to or smaller than {fraction (l/2)}.
Claim 4
Dependent Claim
139 words
An image processing method comprising: a reading step, of reading an original at a predetermined reading width in a main scanning direction; a controlling step, of controlling a reading unit and the original so as to move relative to each other in the main scanning direction and a sub scanning direction, where, in a first main scanning direction, the reading step reads the original at the predetermined reading width and, in the sub scanning direction, said original is fed by 1/x (x is a real number larger than 1) of the predetermined reading width, and in a subsequent main scanning direction, the reading step overlappingly reads the original at the predetermined reading width; and an image processing step, of applying predetermined image processing to an overlapped part of the image data of the original read in the reading step.
Claim 5
Dependent Claim
139 words
An image processing method comprising: a reading step, of reading an original at a predetermined reading width in a main scanning direction; a controlling step, of controlling a reading unit and the original so as to move relative to each other in the main scanning direction and a sub scanning direction, where, in a first main scanning direction, the reading step reads the original at the predetermined reading width and, in the sub scanning direction, said original is fed by 1/x (x is a real number larger than 1) of the predetermined reading width, and in a subsequent main scanning direction, the reading step overlappingly reads the original at the predetermined reading width; and an image processing step, of applying predetermined image processing to an overlapped part of the image data of the original read in the reading step.
Claim 6
Dependent Claim
18 words
An image processing method according to claim 3 , wherein 1/x is equal to or smaller than ½.
Claim 7
Dependent Claim
154 words
A computer-readable storage medium for storing a program for image processing, the program comprising: code for a reading step, of reading an original at a predetermined reading width in a main scanning direction; code for a controlling step, of controlling a reading unit and the original so as to move relative to each other in the main scanning direction and a sub scanning direction, where, in a first main scanning direction, the reading step reads the original at the predetermined reading width and, in the sub scanning direction, said original is fed by 1/x (x is a real number larger than 1) of the predetermined reading width, and in a subsequent main scanning direction, the reading step overlappingly reads the original at the predetermined reading width; and code for an image processing step, of applying predetermined image processing to an overlapped part of the image data of the original read in the reading step.
Claim 8
Dependent Claim
154 words
A computer-readable storage medium for storing a program for image processing, the program comprising: code for a reading step, of reading an original at a predetermined reading width in a main scanning direction; code for a controlling step, of controlling a reading unit and the original so as to move relative to each other in the main scanning direction and a sub scanning direction, where, in a first main scanning direction, the reading step reads the original at the predetermined reading width and, in the sub scanning direction, said original is fed by 1/x (x is a real number larger than 1) of the predetermined reading width, and in a subsequent main scanning direction, the reading step overlappingly reads the original at the predetermined reading width; and code for an image processing step, of applying predetermined image processing to an overlapped part of the image data of the original read in the reading step.
Claim 9
Dependent Claim
25 words
A computer-readable storage medium for storing a program for image processing according to claim 5 , wherein 1/x is equal to or smaller than ½.
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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) | 2006-12-01 | 2007-06-02 | 2007-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-01 | 2011-06-02 | 2011-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-01 | 2015-06-02 | 2015-12-02 | $7700.00 | Window Closed / Lapsed |