Otoscanning with 3D modeling

摘要

An otoscanner including an otoscanner body, the body comprising a hand grip, the body having mounted upon it an ear probe, a tracking illumination emitter, a plurality of tracking illumination sensors, and a display screen, the otoscanner body having mounted within it an image sensor; the ear probe comprising a wide-angle lens optically coupled to the image sensor, laser light source, a laser optical element, and a source of non-laser video illumination; the plurality of tracking illumination sensors disposed upon the otoscanner body so as to sense reflections of tracking illumination emitted from the tracking illumination emitter and reflected from tracking targets installed at positions that are fixed relative to the scanned ear; the image sensor coupled for data communications to a data processor, with the data processor configured so that it functions by constructing a 3D image of the interior of the scanned ear.

主权项

1. A hand-held otoscanner for 3D imaging comprising:
a scanner body, the scanner body comprising a hand grip, the scanner body having mounted upon it a probe, a tracking illumination emitter, and a plurality of tracking illumination sensors, the scanner body having mounted within it an image sensor; the probe comprising a wide-angle lens optically coupled to the image sensor, an imaging light source, and an imaging optical element, the wide-angle lens having sufficient depth of field, the depth of field defined by planes of focus, such that all imaging light on an interior surface of a scanned object is disposed between the planes of focus and in focus at the image sensor; the plurality of tracking illumination sensors disposed upon the scanner body so as to sense reflections of tracking illumination emitted from the tracking illumination emitter and reflected from tracking targets installed at positions that are fixed relative to the scanned object; and the image sensor coupled for data communications to a data processor, with the data processor configured so that it functions by constructing, in dependence upon a sequence of images captured when the scanned object is illuminated by imaging light and tracked positions of the probe inferred from reflections of tracking illumination sensed by the tracking illumination sensors, a 3D image of the interior of the scanned object.