Biometric Sample

https://publicschema.org/BiometricSample

draft

A biometric measurement captured from a person, such as a fingerprint image, iris scan, or facial photograph. Each record represents a single capture of a single biometric position (e.g., right index finger). A BiometricSample record may also document a capture exception: when exception_reason is non-null, the record explains why the biometric could not be captured rather than holding actual sample data.

JSON-LD JSON Schema CSV Definition (Excel) Template (Excel)

Properties

Property Type Definition
Person concept:Person A reference to the individual Person this record relates to.
Biometric modality string (biometric-modality) The type of biometric measurement (face, fingerprint, iris, signature, voice).
Biometric subtype string (biometric-subtype)
The specific body part or position within a biometric modality (e.g., right index finger, left eye, portrait).
Impression type string (impression-type)
The method by which a fingerprint biometric was captured (e.g., live scan plain, rolled, latent).
Capture date date The date on which the biometric sample was captured.
Quality score integer
A quality score for the biometric sample, on a 0-100 scale per ISO 29794-1. Higher values indicate better quality.
Quality algorithm string
The algorithm or standard used to compute the quality score (e.g., NFIQ2, ISO_29794_4).
Sample URI string
A URI reference to the biometric sample data. The referenced resource contains the actual biometric data (image, audio, or other signal).
Sample format string
The MIME type of the biometric sample data (e.g., image/jp2, image/jpeg, application/octet-stream).
Exception reason string (biometric-exception-reason)
The reason a biometric sample could not be captured. When non-null, this record documents a capture exception rather than holding biometric data.
Capture device string An identifier or description of the device used to capture the biometric sample.

Evidence

Not yet found in mapped delivery systems.

No v1 system mappings exist yet. The concept is informed by OSIA BiometricData and MOSIP CBEFF containers, both of which model biometric samples as standalone records linked to a person.

Referenced by this concept

See full reference catalogue