Machine-verifiable diffractive features for document security.
| Autor: | Tompkin, Wayne R., Staub, Rene |
|---|---|
| Zdroj: | Proceedings of SPIE; Nov1998 Part 2, Issue 1, p203-213, 11p |
| Databáze: | Complementary Index |
| Externí odkaz: |
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| Autor: | Tompkin, Wayne R., Staub, Rene |
|---|---|
| Zdroj: | Proceedings of SPIE; Nov1998 Part 2, Issue 1, p203-213, 11p |
| Databáze: | Complementary Index |
| Externí odkaz: |
|