TW354397B - Method for classifying a fingerprint and the system device of the same - Google Patents
Method for classifying a fingerprint and the system device of the sameInfo
- Publication number
- TW354397B TW354397B TW086113791A TW86113791A TW354397B TW 354397 B TW354397 B TW 354397B TW 086113791 A TW086113791 A TW 086113791A TW 86113791 A TW86113791 A TW 86113791A TW 354397 B TW354397 B TW 354397B
- Authority
- TW
- Taiwan
- Prior art keywords
- fingerprint
- classifying
- sections
- line direction
- average
- Prior art date
Links
Landscapes
- Collating Specific Patterns (AREA)
Abstract
Method for classifying a fingerprint comprising the steps of: (A). converting a M x N fingerprint as a set of pixel data stored in an image memory the gray level of each point in the fingerprint is stored in a respective address; (B). dividing the gray level data as m x n sections of M/m x N/n; (C). dividing the m x m sections into fingerprint sections and background section; (D). determining average fingerprint line direction; (E). according to the average fingerprint line direction of the fingerprint section, determining the one or two core points in the fingerprint section; and (F). according to the core points and average fingerprint line direction, classifying the fingerprint into one of a plurality of fingerprint class.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW086113791A TW354397B (en) | 1997-09-23 | 1997-09-23 | Method for classifying a fingerprint and the system device of the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW086113791A TW354397B (en) | 1997-09-23 | 1997-09-23 | Method for classifying a fingerprint and the system device of the same |
Publications (1)
Publication Number | Publication Date |
---|---|
TW354397B true TW354397B (en) | 1999-03-11 |
Family
ID=57940202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW086113791A TW354397B (en) | 1997-09-23 | 1997-09-23 | Method for classifying a fingerprint and the system device of the same |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW354397B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI484420B (en) * | 2008-10-07 | 2015-05-11 | Univ Nat Kaohsiung Applied Sci | Fingerprint classification method of using hierarchical singular point detection and traced orientation flow, and fingerprint classification system thereof |
US9805246B2 (en) | 2015-03-17 | 2017-10-31 | National Kaohsiung University Of Applied Sciences | Method and system for enhancing ridges of fingerprint images |
-
1997
- 1997-09-23 TW TW086113791A patent/TW354397B/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI484420B (en) * | 2008-10-07 | 2015-05-11 | Univ Nat Kaohsiung Applied Sci | Fingerprint classification method of using hierarchical singular point detection and traced orientation flow, and fingerprint classification system thereof |
US9805246B2 (en) | 2015-03-17 | 2017-10-31 | National Kaohsiung University Of Applied Sciences | Method and system for enhancing ridges of fingerprint images |
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