Modality boundary
Palm vascular identifies subcutaneous vascular patterns and is not palmprint. NIR/illumination claims are attributed to CheckID only when device/test evidence supports them.
BIOMETRIC SCIENCE
Palm vascular / palm vein — subcutaneous vascular patterns
Palm vascular is separated from palmprint. Suitable optical capture (commonly near-infrared in vascular systems) yields a vascular representation for verification and identity binding. Mobile-ID-specific use is linked to Trusted Palm ID without transferring vendor claims.
SOURCEAuthoritative / document
CAPTUREDevice / SDK
VERIFYDocument + biometric
ASSUREPolicy + risk
DECIDEClaims / status
EVIDENCEAudit / trace
Technical basisSOURCE-BACKED
SourceCheckID CheckID + ISO standards register
StandardISO/IEC 39794-9
VersionCurrent published edition per standard
ApplicabilityModality-specific; implementation dependent
EvidenceProcess types + standards mapping + certificate scope
TECHNICAL REFERENCE
Palm vascular: sensing profile and subcutaneous pattern
Vascular capture → quality/ROI → representation → matching → evidence
Sensing profile
Distance, hand placement, illumination and sensor optics can control quality. Public documentation does not reuse another vendor’s operating envelope as a CheckID specification.
Quality and ROI
Usable vascular region, motion, placement and contrast are modality-specific issues. Quality results must be tied to a sensor/test profile.
Enrollment
Enrollment should capture subject association and capture context where the implementation supports it, without inventing a template format.
Matching
1:1 or 1:N is claimed only from process/matcher sources. “Palm vascular supported” does not automatically mean both verification and identification are production-ready.
Failure and evidence
Capture failure, insufficient vascular signal/quality, missing enrollment and no-result outcomes remain separate failure classes where implementation sources expose them.