Using these characters, we have palmmprint recongnition, fingerprint recongnition, face recongnition, speaker recognition, iris recongnition, idiograph recongnition and so on.

• 基于这些特征，人们已经发展了手形识别、指纹识别、面像识别、说话人识别、虹膜识别、签名识别等多种生物识别技术。