olemus
mitut kontekstist sõltuvat teisendit kasutav

biomeetrias
ISO/IEC 2382-37:
biomeetriku mitut isendit vajav
Märkus Tüüpilisel inimkäel on mitu sõrmejäljebiomeetriku eksemplari.
= requiring two or more instances of a biometric characteristic
Note. The typical human hand contains more than one instance of a fingerprint biometric characteristic.

näiteid
http://vigir.missouri.edu/~gdesouza/Research/Conference_CDs/IEEE_ICIP_2007/pdfs/0200393.pdf

https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Biokeys/Multi-modal_and_multi-instance_fusion_for_biometric_cryptosystems.pdf

https://arxiv.org/pdf/1210.0818.pdf