Patent ID: 9574871
Date: 2017-02-21
CPC Classifications: G01B

Claim:
1. A method of measuring a length using a mobile terminal, the method comprising: photographing, by a user, a picture of the mobile terminal and a target of measurement together in front of a mirror, using a camera of the mobile terminal; obtaining a ratio of a size of the mobile terminal in the picture to an actual size of the mobile terminal, and estimating a length of the target of measurement from a size of the target of measurement in the picture, using the ratio; and calculating an actual length of the target of measurement based on the estimated length and a difference between a distance from the mirror to the mobile terminal and a distance from the mirror to the target of measurement, wherein calculating an actual length of the target of measurement comprises: wherein obtaining the distance between the mirror and the target of measurement comprises: wherein photographing comprises: wherein obtaining the distance between the mirror and the target of measurement in the lateral side picture, comprises: