Abstract: Systems and methods are disclosed for making three-dimensional models of the inside of an ear canal using a projected pattern. A system comprises a probe adapted to be inserted into the ear canal. The probe comprises a narrow portion adapted to fit inside the ear canal and a wide portion adapted to be wider than the ear canal, which may be formed by a tapered stop. An illumination subsystem projects a pattern of light from the distal end of the probe onto a surface of the ear canal, the pattern being modulated by the three-dimensional surface of the ear canal. An imaging subsystem captures a series of individual images of the pattern of light projected onto the surface of the ear canal. A computer subsystem calculates digital three-dimensional representations from the individual images and stitches them together to generate a digital three-dimensional model of the ear canal.