Data processing apparatus, data processing method, and data processing system

1 . A data processing apparatus that processes three-dimensional data of objects inside an oral cavity, the data processing apparatus comprising:

input interface circuitry to which first three-dimensional data and second three-dimensional data indicating including position information of each point of a point cloud representing surfaces of at least one tooth and gums around the at least one tooth included in the objects acquired at timings different from each other for a same person are input; and

processing circuitry configured to compare the gums around the at least one tooth between the first three-dimensional data and the second three-dimensional data using a shape of a crown portion of the at least one tooth included as a reference and output comparison information regarding a comparison result,

wherein the processing is circuitry configured to compare each point of a point cloud comprising the gums around the at least one tooth indicated by the first three-dimensional data with each point of a point cloud comprising the gums around the at least one tooth indicated by the second three-dimensional data.

2 . The data processing apparatus according to claim 1 ,

wherein the processing circuitry is configured to compare the gums of the at least one tooth using a shape of a whole or a predetermined range of the crown portion of the at least one tooth as a reference.

3 . The data processing apparatus according to claim 1 ,

wherein the processing circuitry is configured to extract the at least one tooth on a basis of a tooth designated by a user or a tooth selected in predetermined order.

4 . The data processing apparatus according to claim 1 ,

wherein the processing circuitry is configured to extract the at least one tooth and divide a row of teeth in a direction substantially orthogonal to a tooth row direction of an arch of the teeth.

5 . The data processing apparatus according to claim 1 ,

wherein the processing circuitry is configured to generate two-dimensional images including an occlusal surface of the at least one tooth on a basis of the first three-dimensional data and the second three-dimensional data and compare the gums using the shape of the crown portion as a reference using the two-dimensional images.

6 . The data processing apparatus according to claim 1 ,

wherein the comparison result includes a comparison result of a shape or a color of the gums.

7 . The data processing apparatus according to claim 1 ,

wherein the comparison information includes at least one of image data corresponding to the comparison result, a numerical value corresponding to the comparison result, a comment regarding the comparison result, and information regarding prediction of change in the gums based on the comparison result.

8 . The data processing apparatus according to claim 1 ,

wherein the first three-dimensional data and the second three-dimensional data include at least one of intra-oral scanner (IOS) data including position information of each point of a point cloud representing surfaces of the objects.

9 . The data processing apparatus according to claim 1 ,

wherein when the objects are irradiated with excitation light at timings different from each other, first fluorescence color data and second fluorescence color data including information of fluorescence colors emitted by the objects are further input to the input interface circuitry, and

the processing circuitry is configured to compare the first fluorescence color data and the second fluorescence color data and output the comparison result as the comparison information.

10 . A data processing method for processing three-dimensional data of objects inside an oral cavity by a computer, the data processing method comprising:

acquiring, by processing circuitry of the computer, first three-dimensional data and second three-dimensional data including position information of each point of a point cloud representing surfaces of at least one tooth and gums around the at least one tooth included in the objects acquired at timings different from each other for a same person;

comparing, by the processing circuitry of the computer, the gums around the at least one tooth between the first three-dimensional data and the second three-dimensional data using a shape of a crown portion of the at least one tooth included in as a reference; and

outputting, by the processing circuitry of the computer, comparison information regarding a comparison result,

wherein the data processing method further comprises comparing each point of a point cloud comprising the gums around the at least one tooth indicated by the first three-dimensional data with each point of a point cloud comprising the gums around the at least one tooth indicated by the second three-dimensional data.

11 . The data processing method according to claim 10 ,

wherein comparing the gums of the at least one tooth includes using a shape of a whole or a predetermined range of the crown portion of the at least one tooth as a reference.

12 . The data processing method according to claim 10 ,

further comprising extracting the at least one tooth on a basis of a tooth designated by a user or a tooth selected in predetermined order.

13 . The data processing method according to claim 10 ,

further comprising extracting the at least one tooth and dividing a row of teeth in a direction substantially orthogonal to a tooth row direction of an arch of the teeth.

14 . The data processing method according to claim 10 ,

further comprising generating two-dimensional images including an occlusal surface of the at least one tooth on a basis of the first three-dimensional data and the second three-dimensional data and comparing the gums using the shape of the crown portion as a reference using the two-dimensional images.

15 . The data processing method according to claim 10 ,

wherein the comparison result includes a comparison result of a shape or a color of the gums.

16 . The data processing method according to claim 10 ,

wherein the comparison information includes at least one of image data corresponding to the comparison result, a numerical value corresponding to the comparison result, a comment regarding the comparison result, and information regarding prediction of change in the gums based on the comparison result.

17 . The data processing method according to claim 10 ,

wherein the first three-dimensional data and the second three-dimensional data include at least one of intra-oral scanner (IOS) data including position information of each point of a point cloud representing surfaces of the objects.

18 . A data processing system that processes three-dimensional data of objects inside an oral cavity, the data processing system comprising:

a three-dimensional scanner that acquires the three-dimensional data of the objects; and

a data processing apparatus that processes the three-dimensional data acquired by the three-dimensional scanner,

wherein the data processing apparatus comprises:

input interface circuitry to which first three-dimensional data and second three-dimensional data indicating including position information of each point of a point cloud representing surfaces of at least one tooth and gums around the at least one tooth included in the objects acquired at timings different from each other for a same person are input; and

processing circuitry configured to compare the gums around the at least one tooth between the first three-dimensional data and the second three-dimensional data using a shape of a crown portion of the at least one tooth included as a reference and output comparison information regarding a comparison result,

wherein the processing circuitry is configured to compare each point of a point cloud comprising the gums around the at least one tooth indicated by the first three-dimensional data with each point of a point cloud comprising the gums around the at least one tooth indicated by the second three-dimensional data.