Patent CH193572A successfully refreshed from Google Patents.
Patent EP0382549A2 successfully refreshed from Google Patents.
EP0382549A2
Expired / Lapsed
EP
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Apparatus for image reading or processing
Assignee: Canon Inc
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Filing: 1990-02-08
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Granted: —
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Expires: 2010-02-08
Abstract
Abstract There is disclosed an apparatus for image reading or processing, that can precisely identify the pattern of a particularly pattern, such as of banknotes or securities of which faithful copying is to be prohibited. The apparatus is provided with a detecting unit for detecting the positional information of the 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 similarly between the pattern data and a predetermined pattern.
Inventors
- 👤 Yoshiyuki Suzuki
- 👤 Masahiro Funada
- 👤 Kenichi Ohta
- 👤 Michio Kawase
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 08:25
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: 30
Claim 1
Independent Claim
59 words
An image processing apparatus comprising: a) detection means for detecting the positional information of an original image; and b) discrimination means for extracting pattern data of a predetermined part of said original image based on the detection by said detection means, and discriminating whether said original image is a predetermined image, based on the similarity with a predetermined pattern.
Claim 2
Dependent Claim
59 words
An image processing apparatus comprising: a) detection means for detecting the positional information of an original image; and b) discrimination means for extracting pattern data of a predetermined part of said original image based on the detection by said detection means, and discriminating whether said original image is a predetermined image, based on the similarity with a predetermined pattern.
Claim 3
Dependent Claim
32 words
An image processing apparatus according to claim 1, wherein said predetermined image is a banknote, and said predetermined part is an area thereof including a red stamp mark or other special mark.
Claim 4
Dependent Claim
30 words
An image processing apparatus according to claim 2, wherein said detection means is adapted to detect the approximate position and angle of a banknote by detecting a watermarked part thereof.
Claim 5
Dependent Claim
30 words
An image processing apparatus according to claim 3, wherein said detection means is adapted to detect the exact position and angle information of the banknote by detecting four corners thereof.
Claim 6
Dependent Claim
24 words
An image processing apparatus according to claim 4, wherein said predetermined pattern is selected from plural registered patterns, with reference to said angular information.
Claim 7
Dependent Claim
76 words
An image processing apparatus according to any preceding claim, wherein said similarity is represented by: Similarity = (a x B(i, j)·P(i, j) + b x B(i, j) ·P(i, j) + c x B(i, j)· P(i, j) + d x B(i, j) · P(i, j) wherein B(i, j) is the pattern of said predetermined part; P(i, j) is said predetermined pattern; a, b, c and d are predetermined constants; "." represents logic product and "‾" represents invertion.
Claim 8
Dependent Claim
28 words
An image processing apapratus according to any preceding claim, further comprising: c) reading means for scanning the original image and providing original image data representing said original image.
Claim 9
Dependent Claim
19 words
An image processing apparatus according to claim 7, wherein said reading means is composed of a CCD line sensor.
Claim 10
Dependent Claim
54 words
An image processing apparatus according to claim 7 or 8, adapts for completing the reading operation of an original image by plural scanning operations of said reading means, wherein said discrimination means is adapted to effect the discrimination of said predetermined image, before the start of the last scanning operation by said reading means.
Claim 11
Dependent Claim
32 words
An image processing apparatus according to any preceding claim, further comprising: d) control means for controlling an image forming process, according to the discrimination of said predetermined image by said discrimination means.
Claim 12
Dependent Claim
50 words
An image reading apparatus comprising: a) scanning means for scanning an object image plural times; and b) discrimination means for discriminating whether said 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 scnaning operations.
Claim 13
Dependent Claim
50 words
An image reading apparatus comprising: a) scanning means for scanning an object image plural times; and b) discrimination means for discriminating whether said 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 scnaning operations.
Claim 14
Dependent Claim
19 words
An image reading apparatus according to claim 11, wherein said scanning means is composed of a CCD line sensor.
Claim 15
Dependent Claim
30 words
An image reading apparatus according to claim 11 or 12, wherein said discrimination means is adapted to detect the positional information of the object image in a first scanning operation.
Claim 16
Dependent Claim
28 words
An image reading apparatus according to claim 13, wherein said discrimination means is adapted to detect the angular information of the object image in a second scanning operation.
Claim 17
Dependent Claim
27 words
An image reading apparatus according to claim 14, wherein said discrimination means is adapted detect a predetermined pattern of the object image in a third scanning operation.
Claim 18
Dependent Claim
17 words
An image reading apparatus according to any of claims 11-15, wherein said predetermined image is a banknote.
Claim 19
Dependent Claim
55 words
An image forming apparatus with a function for prohibiting the reproduction of a predetermined image, comprising: a) means for discriminating whether an input image is a predetermined image; and b) control means for deactivating a part of the image forming apparatus in case said discrimination means discriminates that said input image is said predetermined image.
Claim 20
Dependent Claim
55 words
An image forming apparatus with a function for prohibiting the reproduction of a predetermined image, comprising: a) means for discriminating whether an input image is a predetermined image; and b) control means for deactivating a part of the image forming apparatus in case said discrimination means discriminates that said input image is said predetermined image.
Claim 21
Dependent Claim
86 words
An image forming apparatus according to claim 17, wherein said deactivated part of the apparatus is: (a) a unit for illuminating an original image; (b) a driving unit for an original reading optical system; (c) a driving unit for an original reading sensor; (d) a charging unit for a photosensitive drum for use in an electrophotographic process; (e) a developing unit for use in an electrophotographic process; (f) an image transfer unit for use in an electrophotographic process; or (g) a feeding unit for recording sheets.
Claim 22
Dependent Claim
31 words
An image forming apparatus according to claim 17 or 18, further comprising a buffer memory for delaying the image signal in excess of the time required for recognizing the predetermined image.
Claim 23
Dependent Claim
61 words
An image forming apparatus with a function for prohibiting the reproduction of a predetermined image, comprising: (a) means for discriminating whether an input image is a predetermined image; and (b) control means for changing the process for a part of the color components constituting said input image in case said discrimination means discriminates that said input image is said predetermined image.
Claim 24
Dependent Claim
61 words
An image forming apparatus with a function for prohibiting the reproduction of a predetermined image, comprising: (a) means for discriminating whether an input image is a predetermined image; and (b) control means for changing the process for a part of the color components constituting said input image in case said discrimination means discriminates that said input image is said predetermined image.
Claim 25
Dependent Claim
37 words
An image forming apparatus according to claim 20, wherein said process change by said control means is a change in or to: (a) mirror image formation; (b) the image recording start position; or (c) random image processing.
Claim 26
Dependent Claim
58 words
An image forming apparatus with a function for prohibiting the reproduction of a predetermined image, comprising: (a) means for discriminating whether an input image is a predetermined image; and (b) control means for changing the process for a partial area of said input image in case said discrimination means discriminates that said input image is said predetermined image.
Claim 27
Dependent Claim
58 words
An image forming apparatus with a function for prohibiting the reproduction of a predetermined image, comprising: (a) means for discriminating whether an input image is a predetermined image; and (b) control means for changing the process for a partial area of said input image in case said discrimination means discriminates that said input image is said predetermined image.
Claim 28
Dependent Claim
55 words
An image forming apparatus according to claim 22, wherein said control means is adapted to: (a) change the image data in said partial area to image data of the same density; (b) change the image data in said partial area to zero; or (c) add image data of a certain pattern into said partial area.
Claim 29
Dependent Claim
36 words
Image processing, reading or forming apparatus comprising means for detecting the position and/or attitude of an original image, and means for determining whether the original image or a predetermined portion thereof corresponds to a predetermined image.
Claim 30
Dependent Claim
36 words
Image processing, reading or forming apparatus comprising means for detecting the position and/or attitude of an original image, and means for determining whether the original image or a predetermined portion thereof corresponds to a predetermined image.
References Cited (Backward Citations)
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