Impression Type
https://publicschema.org/vocab/impression-type
The method by which a fingerprint biometric was captured. Covers live-scan, non-live-scan, and latent capture methods. Applies to fingerprint captures; not relevant for iris or face modalities.
Values
| Code | Label | Standard code | Definition |
|---|---|---|---|
live_scan_plain | Live scan plain | A fingerprint captured by pressing a finger flat against a live-scan sensor. | |
live_scan_rolled | Live scan rolled | A fingerprint captured by rolling the finger from nail to nail across a live-scan sensor, producing a wider image. | |
live_scan_swipe | Live scan swipe | A fingerprint captured by swiping the finger across a narrow strip sensor. | |
live_scan_vertical_roll | Live scan vertical roll | A fingerprint captured by rolling the finger vertically (tip to base) across a live-scan sensor. | |
live_scan_palm | Live scan palm | A palm print captured using a live-scan sensor. | |
live_scan_optical_contactless_plain | Live scan optical contactless plain | A fingerprint captured without physical contact using an optical sensor (e.g., camera-based capture). | |
non_live_scan_plain | Non-live scan plain | A fingerprint captured from a pre-existing ink-on-paper impression using a scanner or camera. | |
non_live_scan_rolled | Non-live scan rolled | A rolled fingerprint captured from a pre-existing ink-on-paper impression using a scanner or camera. | |
non_live_scan_palm | Non-live scan palm | A palm print captured from a pre-existing ink-on-paper impression using a scanner or camera. | |
latent_impression | Latent impression | A fingerprint impression left unintentionally on a surface and recovered for identification. | |
latent_tracing | Latent tracing | A latent fingerprint recovered by tracing over the impression on a transparent overlay. | |
latent_photo | Latent photo | A latent fingerprint recovered by photographing the impression on a surface. | |
latent_lift | Latent lift | A latent fingerprint recovered by lifting the impression from a surface using adhesive or chemical techniques. | |
latent_palm_impression | Latent palm impression | A palm print impression left unintentionally on a surface and recovered for identification. | |
latent_palm_tracing | Latent palm tracing | A latent palm print recovered by tracing over the impression on a transparent overlay. | |
latent_palm_photo | Latent palm photo | A latent palm print recovered by photographing the impression on a surface. | |
latent_palm_lift | Latent palm lift | A latent palm print recovered by lifting the impression from a surface using adhesive or chemical techniques. | |
other | Other | A capture method not covered by the other categories. | |
unknown | Unknown | The capture method is not known. |
Referenced by this vocabulary
- ITU-T X.1281 (OSIA) International Telecommunication Union (ITU-T), 2024
Other references
- OSIA ImpressionType Enum partial overlap Full 19-value OSIA ImpressionType enumeration.