Abstract: Methods, apparatus, devices, and systems for three-dimensional (3D) displaying objects are provided. In one aspect, a method includes obtaining data including respective primitive data for primitives corresponding to an object, determining an electromagnetic (EM) field contribution to each element of a display for each of the primitives by calculating an EM field propagation from the primitive to the element, generating a sum of the EM field contributions from the primitives for each of the elements, transmitting to each of the elements a respective control signal for modulating at least one property of the element based on the sum of the EM field contributions, and transmitting a timing control signal to an illuminator to activate the illuminator to illuminate light on the display, such that the light is caused by the modulated elements of the display to form a volumetric light field corresponding to the object.

Abstract: A hair rendering method, a device, an electronic apparatus, and a storage medium, pertaining to the technical field of computer graphics. The method comprises: acquiring multiple initial sections used as cross sections for simulating hair growth (201); determining hair distribution points on each of the multiple initial sections according to a rule of successively decreasing hair distribution densities, and obtaining multiple hair sections (202); sequentially rendering, by means of a pre-determined illumination model, the multiple hair sections on a three-dimensional model requiring hair rendering, and obtaining a target three-dimensional model, the pre-determined illumination model being used to simulate a hair illumination effect (203).

Abstract: In one embodiment, a method of generating a computer-generated reality (CGR) file includes receiving, via one or more input devices, user input generating a computer-generated reality (CGR) scene, a user input associating an anchor with the CGR scene, user input associating one or more CGR objects with the CGR scene, wherein the CGR objects are to be displayed in association with the anchor, and user input associating a behavior with the CGR scene, wherein the behavior includes one or more triggers and actions and wherein the actions are performed in response to detecting any of the triggers. The method includes generating a CGR file including data regarding the CGR scene, the CGR file including data regarding the anchor, the CGR objects, and the behavior.

Abstract: Encoding/decoding data representative of a 3D representation of a scene according to a range of points of view can involve generating a depth map associated with a part of the 3D representation according to a parameter representative of a two-dimensional parameterization associated with the part and data associated with a point included in the part, wherein the two-dimensional parameterization can be responsive to geometric information associated with the point and to pose information associated with the range of points of view. A texture map associated with the part can be generated according to the parameter and data associated with the point. First information representative of point density of points in a part of the part can be obtained. The depth map, texture map, parameter, and first information can be included in respective syntax elements of a bitstream.

Abstract: A method is disclosed for reconstructing three-dimensional video from two-dimensional video data using particle filtering and thereby generating training data for autonomous vehicles. In one version, the method comprises: receiving a set of annotations associated with a video frame comprising a view of at least a portion of a vehicle, each annotation comprising at least one two-dimensional line; removing at least one outlier from the set of annotations; determining an estimated vehicle model based on the set of annotations; and providing the estimated vehicle model to a driving simulator.

Abstract: A method of modifying an image on a computational device is disclosed.

Abstract: An apparatus and method for merging primitives and coordinating between vertex and ray transformations on a shared transformation unit. For example, one embodiment of a graphics processor comprises: a queue comprising a plurality of entries; ordering circuitry/logic to order triangles front to back within the queue; pairing circuitry/logic to identify triangles in the queue sharing an edge and to merge the triangles sharing an edge to produce merged triangle pairs; and shared transformation circuitry to alternate between performing vertex transformations on vertices of the merged triangle pairs and to performing ray transformations on ray direction/origin data.

Abstract: Systems and methods are provided for performing operations including: receiving, via a messaging application, input that selects a collection of augmented reality items; obtaining an identifier of the collection of the augmented reality items; searching, based on the identifier, a plurality of augmented reality items to identify a subset of augmented reality items associated with the identifier; causing the messaging application to present the subset of augmented reality items; and causing the messaging application to modify an image based on a first augmented reality item in the subset.

Abstract: A virtual reality (VR) system includes a VR display and a VR movement apparatus that includes hand interfaces and foot interfaces that can support the hands and feet of a system user. The VR movement apparatus allow the user's limbs to move in 3-dimensional space that include vertical, lateral, and fore-aft direction movements. A computer running VR software coordinate and synchronizes the VR movement apparatus and the VR display to provide system users with simulated activities in a VR environment.

Abstract: Techniques for animation are provided. A first trajectory for a first element in a first animation is determined. A first approximation is generated based on the first trajectory, and the first approximation is modified based on an updated state of the first element. The first trajectory is then refined based on the modified first approximation.

Abstract: A method for generating a visualization for tracking an environmental contaminant includes automatically generating a contaminant visualization map for a particular contaminant. The contaminant visualization map includes a plurality of markers each corresponding to a location associated with a medical case associated with exposure to the particular contaminant, and one or more markers each corresponding to a location of an identified contamination source for the particular contaminant. The method further includes receiving an indication to zoom out the contaminant visualization map, generating one or more heat maps corresponding to the medical cases associated with exposure to the particular contaminant, and updating the contaminant visualization map to be zoomed out, not display the plurality of markers each corresponding to a location associated with a medical case, and display the generated one or more heat maps.

Abstract: The invention provides, in some aspects, a system for rendering images, the system having one or more client digital data processors and a server digital data processor in communications coupling with the one or more client digital data processors, the server digital data processor having one or more graphics processing units. The system additionally comprises a render server module executing on the server digital data processor and in communications coupling with the graphics processing units, where the render server module issues a command in response to a request from a first client digital data processor.

Abstract: The invention provides, in some aspects, a system for rendering images, the system having one or more client digital data processors and a server digital data processor in communications coupling with the one or more client digital data processors, the server digital data processor having one or more graphics processing units. The system additionally comprises a render server module executing on the server digital data processor and in communications coupling with the graphics processing units, where the render server module issues a command in response to a request from a first client digital data processor.

Abstract: An information processing apparatus includes a processor configured to acquire volume data representing three-dimensional space using multiple voxels, data containing geometric layer and at least one attribute layer, geometric layer formed by geometric voxels included in multiple voxels, each geometric voxels assigned=a three-dimensional shape of a target object, at least one attribute layer formed by attribute voxels included in multiple voxels, each attribute voxels assigned attribute value of target object or attribute value around the target object, at least one attribute layer formed by voxels having multiple resolution levels, attribute, voxel position, and resolution level, and if voxel corresponding to the specified voxel position in an attribute layer corresponding to the attribute in the volume data and to a resolution level coinciding with the resolution level is absent, determine an attribute value of voxel corresponding to the specified voxel position and resolution level in attribute layer.

Abstract: Enhanced techniques applicable to a ray tracing hardware accelerator for traversing a hierarchical acceleration structure are disclosed. The traversal efficiency of such hardware accelerators are improved, for example, by transforming a ray, in hardware, from the ray's coordinate space to two or more coordinate spaces at respective points in traversing the hierarchical acceleration structure. In one example, the hardware accelerator is configured to transform a ray, received from a processor, from the world space to at least one alternate world space and then to an object space in hardware before a corresponding ray-primitive intersection results are returned to the processor. The techniques disclosed herein facilitate the use of additional coordinate spaces to orient acceleration structures in a manner that more efficiently approximate the space occupied by the underlying primitives being ray-traced.

Abstract: Computer generated (CG) hair for a virtual character can include strand-based (instanced) hair in which many thousands of digital strands represent real human hair strands. Strand-based hair can appear highly realistic, but rendering strand-based hair in real-time presents challenges. Techniques for generating textured polygon strip (poly strip) hair for a virtual character can use as an input previously-generated strand-based hair for the virtual character. Poly strips can be generated for a sampled set of strands in the strand-based hair. Additional poly strips may be generated near hairlines or part lines. Hair textures from a hair texture library can be matched to the poly strips. The matched textures can be scaled and packed into a region of texture space (e.g., a square region), which provides improved computer access, efficiency, and speed. A rendering engine can use the poly strips and the packed hair textures to render the character's hair in real-time.

Abstract: Methods, systems, and non-transitory machine-readable storage medium for volumetric segmentation of structures in planar medical images. The method includes, for example, receiving a plurality of planar medical images including a structure and displaying a first planar medical image. The method also includes determining and displaying a first two dimensional (2D) contour of the structure using a first single straight line segment between user-selected first and third locations in the first planar medical image. The method further includes determining and displaying a second 2D contour of the structure using a second single straight line segment between user-selected first and second locations in the first planar medical image. The method also includes determining a three dimensional (3D) contour of the structure using the second single straight line segment. The method further includes determining a long axis of the structure using the 3D contour and outputting a dimension of the long axis.

Abstract: An augmented reality system and method of operating the same is provided. An end user is allowed to visualize direct light from a three-dimensional scene in an ambient environment, generating virtual image data from the point of the view of the end user. A region of spatial overlap between a real object in the three-dimensional scene and a virtual object in the virtual image data is determined. Color characteristics of the real object in the overlap region are determined. A perceived contrast between the real object and the virtual object in the overlap region is decreased based on the determined color characteristics of the real object in the overlap region. The virtual image data is displayed as a virtual image after the perceived contrast between the real object and the virtual object has been decreased that, along with the visualized direct light, creates a three-dimensional augmented scene.

Abstract: In a measurement device, a processor is configured to display one first image in a first region of a display. The processor is configured to hide the first image in the first region and display one second image included in a plurality of second images in the first region after a first point is set on the first image. The processor is configured to set the first point on the first image and set a second point on the second image. The processor is configured to generate a three-dimensional shape of a subject on the basis of a position and a posture of a camera when each image is generated. The processor is configured to measure a size of the subject on the basis of at least the first point, the second point, and the three-dimensional shape.

Abstract: Various embodiments of the present technology can include methods, systems and non-transitory computer readable media and computer programs configured to determine one or more images of a generated overhead view of a geographical area. The generated overhead view is generated from aggregated pixel values determined from correlated pixel values in images of the geographical area. The disclosed approaches identify semantic map features as being present in the images of the overhead perspective of the geographic area. The disclosed approaches extract the semantic map features of the geographical area from the images of the substantially overhead perspective of the geographical area. The disclosed approaches translate the extracted semantic map features to a semantic map layer of a geometric map associated with the geographical area.