EP0513612A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fingerprint data registering method
Assignee: Yozan Inc
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Filing: 1992-05-04
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Granted: —
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Expires: 2012-05-04
Abstract
Abstract The present invention has an object to provide a fingerprint data registering method which can clearly show the characteristics of minutiae storing the information of an original image. The present invention is characterized by the steps of thinning a fingerprint image, converting a pixel of each part of an image in the image performed thinning into the data of numerical value corresponding to the pattern of the part, and registering the data of numerical value as the pixel. <IMAGE>
Inventors
- 👤 Makoto C/O Yozan Inc. Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 16:56
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/30; G07C9/32; G07C9/37; G06; G06V; G06V40/00; G06V40/10; G06V40/12; G06V40/1347
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
40 words
A fingerprint data registering method comprising steps of thinning a fingerprint image, converting each pixel of said image into a datum of numerical value corresponding to a pattern of said pixel, and registering data of numerical value as a pixel.
Claim 2
Dependent Claim
19 words
A fingerprint data registering method claimed in Claim 1, wherein said data of numerical value is 7 bits data.
Claim 3
Dependent Claim
19 words
A fingerprint data registering method claimed in Claim 1, wherein said data of numerical value is 8 bits data.
Claim 4
Dependent Claim
23 words
A fingerprint data registering method claimed in Claim 1, wherein a bit to show minutiae is set in said data of numerical value.
Claim 5
Dependent Claim
26 words
A fingerprint data registering method claimed in Claim 1, wherein a bit to show a kind of minutiae is set in said data of numerical value.
Claim 6
Dependent Claim
32 words
A fingerprint data registering method claimed in Claim 1, wherein a bit to show if an object pixel is a configuration pixel or not is included in said data of numerical value.
References Cited (Backward Citations)
No citation records indexed.
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