To measure shape of a human body by forming a measuring point on a curved surface with has few characteristic points, without having to use a special tool such as a laser beam illuminant or a rotating stand.

In a 3D measurement method, two data obtained by photographing a subject wrapped in mesh cloth is binarized in distrubition, on the basis of the threshold of chroma or luminosity, and a center point or an end part is calculated from the left, right, upper and lower values of a part seen between meshes to be set to the measuring point of an object to be measured.