| 摘要 |
PROBLEM TO BE SOLVED: To specify the material of an object on which a portable terminal is placed.SOLUTION: In a state placed on an object, a portable terminal 1 calculates a first feature value representing the motion characteristics in the in-plane direction when being vibrated, calculates a second feature value representing the motion characteristics in the out-of-plane direction when being vibrated, and then specifies, as the material of the object, a material searched from a database storing a range of first feature value in association with a range of second feature value, for each of one or more material. |
