Method and device for contactless user guidance in space for contactless optical recording of fingerprint images

Abstract

The invention relates to a method and a device for contactless user guidance in space for contactless optical recording of fingerprint images. The invention comprises generating a position specification (PE) for the finger or hand to be presented in a defined positioning plane (PE), which is visualized as a position specification by means of a virtual display (11); recording images by means of a camera device (2), wherein at least parts of a finger or hand palm are recorded in the positioning plane (PE) at a distance of at least 100 mm from the camera device (2) in order to define a contactless measuring volume (21) with a maximum depth of 30 mm; and capturing the presented fingers by means of illumination that allows at least one finger or hand recording around the defined positioning plane (PE) for determining the position of the presented fingers or hand.and the evaluation of the finger or hand recordings, at least with regard to the presence and position of a finger or palm, in order to control the virtual display (11) as feedback for showing results or corrective instructions for user guidance.

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