US5216724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for image reading or processing
Assignee: Canon Inc
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Filing: 1992-08-28
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Granted: 1993-06-01
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Expires: 2012-08-28
Abstract
Abstract There is disclosed an apparatus for image reading or processing, that can precisely identify a particular pattern, such as of banknotes or securities faithful copying of which is to be prohibited. The apparatus is provided with a detecting unit for detecting positional information of an original image, and a discriminating unit for extracting the pattern data of a certain part of the original image and discriminating whether the original image is the predetermined image, based on the similarity between the pattern data and the predetermined pattern.
Inventors
- 👤 Yoshiyuki Suzuki
- 👤 Masahiro Funada
- 👤 Kenichi Outa
- 👤 Michio Kawase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:38
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/00838; G; G03; G03G; G03G15/00; G03G15/50; G03G15/5066; G03G15/507; G03G21/00; G03G21/04; G03G21/046; G07; G07D; G07D7/00; G07D7/003; G07D7/0034; G07D7/17; H04N1/0084; H04N1/00843; H04N1/00846; H04N1/00848; H04N1/00856; H04N1/00859; H04N1/00864; H04N1/00872
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 words
An image reading apparatus comprising: a) scanning means for scanning an object image plural times and for generating a first color component signal in a first scanning and a second color component signal, different from the first color component signal, in a second scanning; b) first discrimination means for discriminating whether the object image is a predetermined image by using a first discriminating standard in the case where said scanning means generates the first color component signal; and c) second discriminating means for discriminating whether the object image is a predetermined image by using a second discriminating standard, different from the first discriminating standard, in the case where said scanning means generates the second color component signal.
Claim 2
Dependent Claim
117 words
An image reading apparatus comprising: a) scanning means for scanning an object image plural times and for generating a first color component signal in a first scanning and a second color component signal, different from the first color component signal, in a second scanning; b) first discrimination means for discriminating whether the object image is a predetermined image by using a first discriminating standard in the case where said scanning means generates the first color component signal; and c) second discriminating means for discriminating whether the object image is a predetermined image by using a second discriminating standard, different from the first discriminating standard, in the case where said scanning means generates the second color component signal.
Claim 3
Dependent Claim
17 words
An image reading apparatus according to claim 1, wherein said scanning means comprises a CCD line sensor.
Claim 4
Dependent Claim
28 words
An image reading apparatus according to claim 1, wherein said discrimination means is adapted to detect the positional information of the object image in a first scanning operation.
Claim 5
Dependent Claim
82 words
An image reading apparatus comprising: a) scanning means for scanning an object image plural times; and b) discrimination means for discriminating whether the object image is a predetermined image in stepwise manner in each of said scanning operations, utilizing the outputs of said scanning means in the plural scanning operations, wherein said discrimination means is adapted to detect positional information of the object image in first and second scanning operations and angular information of the object image in the second scanning operation.
Claim 6
Dependent Claim
82 words
An image reading apparatus comprising: a) scanning means for scanning an object image plural times; and b) discrimination means for discriminating whether the object image is a predetermined image in stepwise manner in each of said scanning operations, utilizing the outputs of said scanning means in the plural scanning operations, wherein said discrimination means is adapted to detect positional information of the object image in first and second scanning operations and angular information of the object image in the second scanning operation.
Claim 7
Dependent Claim
28 words
An image reading apparatus according to claim 4, wherein said discrimination means is adapted to detect a predetermined pattern of the object image in a third scanning operation.
Claim 8
Dependent Claim
15 words
An image reading apparatus according to claim 1, wherein the predetermined image is a banknote.
Claim 9
Dependent Claim
120 words
An image processing method comprising: a) a first scanning step of scanning an object image in order to generate a first color component signal representing the object image; b) a first discriminating step of discriminating whether the object is a predetermined image by subjecting the first color component signal to a first discriminating standard; c) a second scanning step of scanning an object image in order to generate a second color component signal, different from the first color component signal, representing the object image; and d) a second discriminating step of discriminating whether the object image is a predetermined image by subjecting the second color component signal to a second discriminating standard which is different from the first discriminating standard.
Claim 10
Dependent Claim
120 words
An image processing method comprising: a) a first scanning step of scanning an object image in order to generate a first color component signal representing the object image; b) a first discriminating step of discriminating whether the object is a predetermined image by subjecting the first color component signal to a first discriminating standard; c) a second scanning step of scanning an object image in order to generate a second color component signal, different from the first color component signal, representing the object image; and d) a second discriminating step of discriminating whether the object image is a predetermined image by subjecting the second color component signal to a second discriminating standard which is different from the first discriminating standard.
Claim 11
Dependent Claim
16 words
A method according to claim 7, wherein said scanning step is performed using a CCD sensor.
Claim 12
Dependent Claim
13 words
A method according to claim 7, wherein the predetermined image is a banknote.
Claim 13
Dependent Claim
25 words
A method according to claim 7, wherein a standard of discrimination used in said discriminating step is different in each repetition of said discriminating step.
Claim 14
Dependent Claim
22 words
A method according to claim 7, further comprising the step of processing the image data in accordance with the combined discriminated results.
References Cited (Backward Citations)
US2919426A
Cited
US3533068A
Cited
US3852088A
Cited
US4325981A
Cited
JPS55123270A
Cited
US4586811A
Cited
US4908873A
Cited
WO1985001129A1
Cited
US4772958A
Cited
GB2155860A
Cited
JPS60229572A
Cited
US4723149A
Cited
US4797945A
Cited
US4881268A
Cited
US4739377A
Cited
US4823393A
Cited
US4728984A
Cited
EP0342060A2
Cited
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| 3.5 Years (Year 4) | 1996-05-31 | 1996-11-30 | 1997-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-31 | 2000-11-30 | 2001-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-31 | 2004-11-30 | 2005-06-01 | $7700.00 | Window Closed / Lapsed |