OPTICAL RECORDING OF THE SPATIAL FORM OF BODIES AND BODY PARTS WITH SECTIONS THAT IN PART ARE NOT OPTICALLY VISIBLE

摘要

The invention relates to a method and a device for the optical 3D digitisation of bodies and body parts with sections that are not visible and thus cannot be recorded by the 3D digitiser. A mechanical aid is fixed to said sections and protrudes into the measuring area that is visible to the 3D digitiser. Said aid is provided with markings on the visible section and is digitised simultaneously with the other visible body parts. The spatial position of the markings on the aid enables important geometric information to be calculated in retrospect for the parts that are not visible, such as their spatial position, circumferential measurement etc., thus permitting the 3D model of the body or body part that is incomplete at these points to be completed. Two orthopaedic applications are given as examples.