1. A method for the accurate measurement of objects, comprising: arranging a camera ( 4 ) on a manually operated portable jointed arm ( 1 ) mounted under a support ( 7 ) that is immobile during the measurement, in order to take two-dimensional images of the object that is to be measured and where the measurements are carried out based on the two-dimensional images taken with the camera ( 4 ) and based on displacements that are carried out by jointed arm ( 1 ) during the measurements.