PORTABLE THREE-DIMENSIONAL IMAGE MEASURING DEVICE, THREE-DIMENSIONAL IMAGE MEASURING METHOD USING SAME, AND MEDICAL IMAGE MATCHING SYSTEM

A portable three-dimensional image measuring device according to various embodiments of the present disclosure may include a light source configured to output patterned light; a camera configured to generate a light field image of an object by receiving reflected light generated by reflecting the patterned light from the object; and an optical path control element configured to reflect the patterned light output from the light source so that the object is irradiated with the patterned light, and to transmit the reflected light reflected from the object so that the reflected light reaches the camera. An optical path of the patterned light output from the light source and irradiated onto the object and an optical path of the reflected light reflected from the object and reaching the camera may overlap coaxially in a section between the optical path control element and the object.