Patent ID: 11869203
Assignee: DIO CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A dental image registration device comprising:
an outermost boundary detection unit configured to detect a first outermost boundary region, which is an outermost boundary region of dentition, from first teeth image data and detect a second outermost boundary region, which is the outermost boundary region of the dentition, from second teeth image data;
an image registration unit configured to register the first and second teeth image data with respect to a first inscribed circle inscribed in the first outermost boundary region and a second inscribed circle inscribed in the second outermost boundary region or register the first and second teeth image data with respect to a first central point of the first outermost boundary region and a second central point of the second outermost boundary region; and
an inscribed circle detection unit configured to detect the first inscribed circle inscribed in the first outermost boundary region and detect the second inscribed circle inscribed in the second outermost boundary region,
wherein the inscribed circle detection unit detects two circles, which have a first radius and are each tangent to both sides that form left and right upper corners of the first and second outermost boundary regions, and one circle, which has the first radius and is tangent to a point at which a bisector line that bisects the first and second outermost boundary regions between the detected two circles abuts with a side that forms a lower end of the first and second outermost boundary regions, as the first and second inscribed circles.