A computer-implemented method and system of automatically detecting and removing extraneous material from a digital dental impression includes detecting one or more dental features in a digital dental impression, filtering the one or more dental features, digitally joining the one or more dental features, and determining one or more regions of interest from the joined one or more digital dental features.

A method of compensating for sintering warpage due to powder spreading density variations in binder jetting additive manufacturing, including receiving an initial design file defining an object geometry, representing the object geometry as a part mesh and filling the mesh with a grid of voxels to create a voxel grid, each voxel having at least one shrinkage coefficient. For each voxel, determining a distortion factor caused by a powder density variation induced during a powder spreading process and adjusting the at shrinkage coefficient of each voxel according to its respective distortion factor. Next, a shrinkage of the grid of voxels is simulated according to a sintering process. A negative compensation is applied to the voxel grid, according to the simulated shrinkage of the grid of voxels, to form a compensated voxel grid. Lastly, the change in the voxel grid is mapped to the compensated voxel grid onto the part mesh to create a pre-processed compensated part mesh.

A method of compensating for shrinking and distortion of an object resulting from a manufacturing process. A scan is performed of an object following a manufacturing process to produce scan data. The scan data is aligned to a part mesh of the object. The part mesh is adjusted to substantially coincide with the scan data by moving part mesh vertices. Delta vectors are computed by subtracting initial part mesh vertex positions from final part mesh vertex positions. The inverse of the delta vectors are applied to the preprocessed part mesh to give a scan adjusted pre-processed shape.

Deviations in a 3D printing process can be detected during printing via sensors or by user observation. A user can manipulate and evaluate any deviations from a 3D model via a simulation of the work-in-progress object via virtual reality. The user can also make changes to the model, resulting in the printer completing the same work-in-progress object based on the revised model.

A method for creating a virtual three-dimensional structural model of a body includes ascertaining a shell geometry and a basic volume from a geometric model of the body; creating a numerical model of the body from the shell geometry and/or the basic volume; acting upon the numerical model with a variable and establishing a target property of the body from the numerical model acted upon by the variable; creating a structural model that defines an actual property of the body; and iteratively optimizing the structural model to align the actual property with the target property. During the optimization, adapting a mechanical, thermal, and/or aerodynamic actual property of the body to a mechanical, thermal, and/or aerodynamic target property of the body by modifying at least one parameter of the structural model. A manufacturing method and a device perform this method.

A method includes generating a real-time ultrasound image of anatomy of interest. At least a sub-portion of the anatomy of interest is deformed from an initial location to a different location by pressure applied by an external force. The method further includes obtaining a 2-D slice, which corresponds to a same plane as the real-time ultrasound image, from 3-D reference image data, wherein a corresponding sub-portion is at the initial location. The method further includes determining displacement fields for the sub-portion from the sub-portion, the corresponding sub-portion and other anatomy not-deformed in the real-time ultrasound image and the 3-D reference image data. The method further includes deforming the 3-D reference image data using the displacement fields, which creates deformed 3-D reference image data based on the different location.

The present disclosure relates to an extended reality (XR)-based supervision assisting device, which finds a construction error by comparing a real design object photographed by a camera of the supervision assisting device with building information modelling (BIM) design data, and corrects the BIM design data to fit the real design object when the construction error between the real design object and the BIM design data exceeds a preset error tolerance range, thereby adjusting the BIM design data according to the construction error.

A method of 3D print modelling includes: obtaining a target virtual object for 3D printing, evaluating the target virtual object for 3D printing with respect to one or more printability criteria to detect whether the 3D printed model would have one or more predetermined undesirable physical characteristics, and if so, generating 3D printable model data defining a transparent matrix to be printed surrounding the 3D printed model of the target virtual object.

Systems and methods for generating and facilitating access to a personalized augmented rendering of a user to be presented in an augmented reality environment are discussed herein. The augmented rendering of a user may be personalized by the user to comprise a desired representation of the user in an augmented reality environment. When a second user is detected within the field of view of a first user, the second user may be identified and virtual content (e.g., an augmented rendering) for the second user may be obtained. The virtual content obtained may differ based on one or more subscriptions for the first user and/or permissions associated with the virtual content of the second user. The virtual content obtained may be rendered and appear superimposed over or in conjunction with a view of the second in the augmented reality environment.

Systems and methods for receiving audio data; identifying one or more graphical interface elements that correspond to the audio data; generating a display of the identified one or more graphical interface elements, wherein a first portion of the one or more graphical interface elements is persistently displayed, and wherein a second portion of the one or more graphical interface elements is temporarily displayed for a predetermined period of time together with the first portion of the one or more graphical interface elements; and at expiry of the predetermined period of time, ceasing display of the second portion while maintaining display of the first portion.