Abstract: A three-dimensional modeling method according to the present invention includes: a scan step of scanning a subject to be filtered so as to obtain at least one set of image data; a step of determining a reference color or a reference color range from a color included in the image data obtained in the scan step and filtering the reference color or the reference color range; and a step of generating a three-dimensional surface model of a subject to be modeled by scanning the subject to be modeled, wherein the step of generating the three-dimensional surface model includes excluding the reference color or the reference color range to generate the three-dimensional surface model.

Abstract: A method of providing information for dental treatment includes acquiring a design model that is generated based on a first scan model acquired by scanning a target object and is a model for an artifact to be attached to the target object, acquiring a second scan model generated by scanning the artifact manufactured based on the design model, aligning the first scan model and the second scan model, and identifying an incorrectly-made part in the second scan model, based on a result of the alignment, and generating information corresponding to the identified incorrectly-made part in the second scan model.

Abstract: According to embodiments, disclosed are a device and method for processing an intraoral image. The disclosed method of processing an intraoral image includes displaying the intraoral image based on a scan region of interest having a first size, detecting a predetermined event, based on detecting the predetermined event, adjusting the size of the scan region of interest from the first size to a second size, and displaying the intraoral image based on the scan region of interest having the adjusted second size.

Abstract: According to an aspect of the present disclosure, a three-dimensional (3D) data acquisition apparatus includes a communication interface communicating with a 3D scanner, and a processor configured to execute at least one instruction to obtain 3D data, wherein the processor to operate in a first mode to obtain first data by scanning an object by using the 3D scanner, switch an operation mode to a second mode when a metal area is detected from the object, operate in the second mode to obtain second data by scanning the object by using the 3D scanner, and obtain 3D data of the object, based on the first data and the second data.

Abstract: Provided are an intraoral image processing method and an intraoral image processing apparatus. The intraoral image processing method includes obtaining an intraoral image generated by scanning teeth, segmenting teeth of the intraoral image, generating a customized curve based on one or more teeth included in the intraoral image, and obtaining a final position of teeth by arranging teeth segmented from the intraoral image to be aligned with the customized curve.

Abstract: A data processing method according to the present disclosure includes: distinguishing, in a 3D model, an analysis region including at least one tooth region; and determining a degree of completeness of the 3D model based on the analysis region.

Abstract: Provided are a three-dimensional (3D) scanner device, an operating method, and a computer-readable storage medium having stored a program for performing the operating method.

Abstract: Provided are an intraoral image processing apparatus and an intraoral image processing method. The intraoral image processing method includes obtaining a first intraoral image generated by scanning teeth and a second intraoral image generated by scanning the teeth with an orthodontic device attached thereto, segmenting teeth of the first intraoral image, obtaining a teeth image with the orthodontic device removed therefrom by replacing teeth with the orthodontic device attached thereto included in the second intraoral image with segmented teeth of the first intraoral image, and adjusting teeth of the teeth image by using numbers of teeth.

Abstract: The present disclosure discloses a three-dimensional data alignment apparatus, a three-dimensional data alignment method, and a recording medium, which may align a location between volumetric data and surface data even without a segmentation process of extracting a surface from the volumetric data. A three-dimensional data alignment apparatus according to an exemplary embodiment of the present disclosure includes a three-dimensional data alignment unit for aligning a location between first three-dimensional data and second three-dimensional data expressed in different data forms with regard to a target to be measured. The first three-dimensional data are three-dimensional data acquired in a voxel form with regard to the target to be measured, and the second three-dimensional data are three-dimensional data acquired in a surface form with regard to the target to be measured.

Abstract: A method of obtaining three-dimensional data includes: obtaining three-dimensional reference data with respect to an object; aligning, on the three-dimensional reference data, a first frame obtained by scanning a first region of the object; aligning, on the three-dimensional reference data, a second frame obtained by scanning a second region of the object, at least a portion of the second region overlapping the first region; and obtaining the three-dimensional data by merging the first frame with the second frame based on an overlapping portion between the first region and the second region.

Abstract: An intraoral scanning system is described herein. The intraoral scanning system includes a scanning device and a processing device. The scanning device is configured to illuminate an object of interest with a burst light pattern at one or more intervals and receive a set of reflected images reflected off the object of interest. The processing device is configured to receive the set of reflected images from the scanning device and convert the set of reflected images into a three-dimensional model of the object of interest. The burst light pattern comprises a first image and a second image in succession. One of the first image and the second image is a structured light image and the other of the first image and the second image is an unstructured light image.

Abstract: A scanning system is described herein which incorporates projecting a plurality of patterns onto an object of interest and capturing the reflected image. Each pattern is based at least in part on traversing a hypercube graph or a Fibonacci cube graph using a Hamiltonian path. The patterns are used to help define the three-dimensional shape of the underlying object of interest, while also providing more robust error-correcting properties. After the reflected image of the projected pattern is captured, the scanning system further processes and displays a three-dimensional model of the captured object of interest.

Abstract: According to a data locking system and a data locking method, data obtained from a scanner is converted into a real-time three-dimensional surface having unit cells. The unit cells constituting the real-time three-dimensional surface include at least one piece of characteristic information having a variety of information such as color, curvature, reliability color, or data density. When new data is input from the scanner, after performing a real-time three-dimensional surface conversion and aligning process, the characteristic information assigned to the unit cells may be updated or update-restricted according to the characteristic information about a corresponding point.

Abstract: Provided are a method and apparatus for processing an intraoral image. The data processing apparatus includes a memory including one or more instructions, and a processor configured to execute the one or more instructions stored in the memory, wherein the processor, by executing the one or more instructions, displays an eggshell generated based on surface data of a tooth selected from the intraoral image, provides a user interface that allows to adjust a boundary of the eggshell, and displays an eggshell transformed by adjusting the boundary of the eggshell according to a user input through the user interface.

Abstract: An electronic device of the present disclosure is configured to acquire first scan data by a first scan performed by a three-dimensional scanner to scan an oral cavity of a subject, acquire second scan data by a second scan performed by the three-dimensional scanner to scan an impression model modeled on the oral cavity of the subject, invert one of the first scan data and the second scan data, determine whether an overlapping area exists between inverted scan data and non-inverted scan data, among the first scan data and the second scan data, and generate, if the overlapping area exists, a three-dimensional image model for the oral cavity of the subject by aligning the inverted scan data and the non-inverted scan data based on the overlapping area.

Abstract: Provided is a data processing method using a data processing apparatus. The data processing method includes obtaining a 3D oral model including 3D scan data of an object; and generating a prosthesis for the object based on the 3D scan data of the object according to a module selected from a plurality of modules.

Abstract: In an alignment state indicating apparatus and method according to the present invention, scanning is performed by means of a scanner, raw data is formed through light incident into the scanner, 3D data is formed through the raw data, and alignment is performed. When it is determined that such an alignment process of 3D data is not performed normally, the alignment state indicating apparatus and method according to the present invention provide visual feedback to a user on an alignment error in the form of a specific pattern, thereby allowing the user to quickly recognize whether to perform the alignment. Accordingly, the alignment state indicating apparatus and method have the advantage of improving the reliability of scanning by allowing the user to scan an object closely.

Abstract: A pulp cavity distance measurement system according to the present invention comprises: a first scan unit which acquires surface data; and a second scan unit which acquires volume data that is scan information different from the surface data, wherein the surface data and volume data are delivered via a database unit included in a control unit, and are merged into a single piece of data by a data merging unit. The shortest distance (pulp cavity distance) from the surface of the enamel of a tooth to the surface of the pulp cavity is calculated from the merged data, and the pulp cavity distance may be visually displayed by a distance stage display unit by using the calculated distance information (data). Here, the visual display may be expressed using colors or patterns having specific markings, and have a plurality of patterns so that the distance is displayed so as to be divided in stages.

Abstract: A method for supplementing scan data by using library data according to the present invention comprises: a scan step of acquiring scan data of a subject including a structure; a step of selecting library model data corresponding to the structure; and a step of post-processing the scan data, wherein the library model data is added at the step of post-processing of the scan data and is post-processed together with the scan data. Accordingly, the scan data in which distortion or a data gap has occurred is supplemented by the library model data, and thus a user acquires a highly reliable three-dimensional model.

Abstract: Proposed is a method of compensating data, the method including: acquiring a plurality of initial scan shots by scanning a target object onto which a predetermined pattern is projected; detecting a non-scan region on the basis of the plurality of initial scan shots; and acquiring at least one compensated scan shot by additionally scanning at least one portion of the target object when the non-scan region is detected.