TW330272B - Automatic seal imprint comparing and recognizing system - Google Patents
Automatic seal imprint comparing and recognizing systemInfo
- Publication number
- TW330272B TW330272B TW085108751A TW85108751A TW330272B TW 330272 B TW330272 B TW 330272B TW 085108751 A TW085108751 A TW 085108751A TW 85108751 A TW85108751 A TW 85108751A TW 330272 B TW330272 B TW 330272B
- Authority
- TW
- Taiwan
- Prior art keywords
- seal
- imprint
- similarity
- calculate
- imprints
- Prior art date
Links
Landscapes
- Collating Specific Patterns (AREA)
Abstract
An automatic seal imprint comparing and recognizing method includes: - Convert the two seal imprint images to be compared into binary data; Calculate a character similarity of seal imprints, including: - Convert the binary seal-imprint images into thin lines; - Find the coordinates of a characteristic point of the thin lines in the image data of each seal imprint;and - Compare the coordinates of the characteristic points of the two seal-imprint image data and calculate the character structure similarity of the two seal-imprints using a formula; Calculate a line similarity of seal imprints, including: - Calculate the reference points of the two seal-imprint images; - Overlap the two seal-imprint images with the reference points as the center point; and - Calculate the line similarity of the two seal imprints; - Calculate an overall index of seal imprint similarity using the following equation: overall index of seal imprint similarity = (W1 x character structure similarity of seal imprints + W2 x line similarity of seal imprints) / W where W1 + W2 = W; and - Determine if the two seal-imprint images are identical based on a standard value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085108751A TW330272B (en) | 1996-07-18 | 1996-07-18 | Automatic seal imprint comparing and recognizing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085108751A TW330272B (en) | 1996-07-18 | 1996-07-18 | Automatic seal imprint comparing and recognizing system |
Publications (1)
Publication Number | Publication Date |
---|---|
TW330272B true TW330272B (en) | 1998-04-21 |
Family
ID=58262585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW085108751A TW330272B (en) | 1996-07-18 | 1996-07-18 | Automatic seal imprint comparing and recognizing system |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW330272B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI402769B (en) * | 2004-12-28 | 2013-07-21 | Masahiro Noda | Variable imprint seal system, seal verification system, seal verification method and seal verification program |
TWI739387B (en) * | 2020-04-10 | 2021-09-11 | 彰化商業銀行股份有限公司 | Seal identification system and method thereof |
-
1996
- 1996-07-18 TW TW085108751A patent/TW330272B/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI402769B (en) * | 2004-12-28 | 2013-07-21 | Masahiro Noda | Variable imprint seal system, seal verification system, seal verification method and seal verification program |
TWI739387B (en) * | 2020-04-10 | 2021-09-11 | 彰化商業銀行股份有限公司 | Seal identification system and method thereof |
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Legal Events
Date | Code | Title | Description |
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MK4A | Expiration of patent term of an invention patent |