| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an information system, an information input method, and a program allowing to input information by quickly detecting movements of an indicating object such as a finger of a user. <P>SOLUTION: A cellular phone device 50 to which information is inputted in a noncontact manner by movements of a finger comprises a diaphragm 1, a stop control section 4 which controls the aperture of the diaphragm 1, a photographing section 3 which photographs a finger, a key contact detection section 11 which decides whether the finger is within a predetermined distance range or not by changing the aperture with the stop control section 4 and comparing a plurality of finger images photographed by the photographing section 3 for each aperture, and a key operation decision section 13 which decides what key has been operated when the finger has been decided to be within the predetermined distance range. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
