Surface shape recognition sensor device

A surface shape recognition sensor device characterized by comprising:

• a plurality of detection elements which are two-dimensionally arranged;
• a first detection electrode which is included in each detection element and comes into contact with an object through an insulating film to generate a capacitance corresponding to a three-dimensional pattern of a surface shape of the object;
• a second detection electrode which is included in each detection element and comes into electrical contact with the detection element;
• a surface shape detection unit which detects the three-dimensional pattern of the surface shape as an output from said detection element on the basis of the capacitance obtained through said first detection electrode of said detection element;
• and
• a biometric recognition unit which determines whether the object is a living body, on the basis of a signal corresponding to an impedance of the object connected between said second detection electrodes included in at least a first detection element and second detection element of said detection elements,
• wherein said second detection electrode of said first detection element is connected to a predetermined common potential, and said second detection electrode of said second detection element is connected to said biometric recognition unit.