Abstract: A human machine interface system (100) and method of providing guidance and instruction for iris recognition on a mobile terminal. The system comprises: a near infrared imaging module (101), a visible light imaging module (102), and a display screen (103). The visible light imaging module (102) has an optical image acquisition area covering that of the near infrared imaging module (101). The display screen (103) displays a visible light image produced by preconfigured pixel adjustment. The preconfigured pixel adjustment comprises acquiring the invisible light image by performing a relative image center pixel shift process and/or a local area ROI pixel selection process.

Abstract: The present disclosure provides a human-machine interface guidance/indication device for iris recognition of a mobile terminal, comprising a mobile terminal and an iris recognition imaging module; the mobile terminal comprises a visible light LED (light emitting diode) and a display screen respectively in signal connection with a processor chip; the iris recognition imaging module comprises an imaging sensor and a near-infrared LED lighting source, and a near-infrared optical filter and an optical imaging lens are arranged on the imaging sensor; the processor chip is in signal connection with the imaging sensor and the near-infrared LED lighting source respectively.