Techniques applicable to a ray tracing hardware accelerator for traversing a hierarchical acceleration structure with reduced round-trip communications with a processor are disclosed. The reduction of round-trip communications with a processor during traversal is achieved by having a visibility mask that defines visibility states for regions within a geometric primitive available to be accessed in the ray tracing hardware accelerator when a ray intersection is detected for the geometric primitive.

There is provided an image processing apparatus and an image processing method that are capable of suppressing an increase in loads when a point cloud is generated from a mesh. Point cloud data is generated by positioning points at intersection points between a surface of a mesh and vectors each including, as a start origin, position coordinates corresponding to a specified resolution. For example, intersection determination is performed between the surface of the mesh and each of the vectors, and in a case where the surface and the vector are determined to intersect each other, the coordinates of the intersection point are calculated. The present disclosure can be applied to an image processing apparatus, electronic equipment, an image processing method, a program, or the like.

Concepts and technologies are disclosed herein for optimization of resource usage in cross-reality sessions. A computer can receive a request for a cross-reality session, determine entities to be included in the cross-reality session, and optimize resource usage during the cross-reality session. Optimized cross-reality session data can be provided to a device to generate a cross-reality environment that can include the one entity of the entities rendered in the first level of detail. Attention data that can describe interactions in the cross-reality environment can be obtained. The resource usage can be re-optimized based on the attention data. Re-optimizing the resource usage can include determining that the one entity of the entities is to be rendered in a second level of detail that is greater than the first level of detail. An update can be delivered to the device, which can use the update to update the cross-reality environment.

An electronic device and method are disclosed. The electronic device includes a first and second camera, display, memory and processor. The processor implements the method, including acquiring image data of an external environment via the first camera, detecting a plurality of objects included in the image data, identifying a first object corresponding to the detected gaze among the detected plurality of objects, configuring a first precision for spatial mapping of the identified first object and a second precision of at least one other object from among the detected plurality of objects, wherein the first precision is higher than the second precision, executing 3D spatial mapping on the image data using the first precision for the identified first object and the second precision for the at least one other object, and displaying a 3D space generated based on the image data and the spatial mapping.

A medical imaging communication system processes medical images for being transmitted to a client device. The system receives a set of images, each image corresponding to a slice of a three-dimensional object. The system combines a first subset of the images into a first combined image and combines a second subset of the images into a second combined image. The first and second combined image are compressed using a lossless compression algorithm and transmitted to the client device.

Methods and apparatus to facilitate 3D object visualization and manipulation across multiple devices are disclosed. Example apparatus disclosed herein include a viewpoint determiner, a visible shard determiner, and a laminate assembler. The viewpoint determiner determines a viewpoint location of a viewpoint corresponding to a viewing device, the viewpoint location being in a reference frame of a three-dimensional (3D) model. The visible shard determiner determines a visible shard set of the 3D model based on the viewpoint location. The laminate assembler generates a two-dimensional (2D) image of the visible shard set.

A .Math.-mesh (“micromesh”), which is a structured representation of geometry that exploits coherence for compactness and exploits its structure for efficient rendering with intrinsic level of detail is provided. The micromesh is a regular mesh having a power-of-two number of segments along its perimeters, and which can be overlaid on a surface of a geometric primitive. The micromesh is used for providing a visibility map and/or a displacement map that is accessible using barycentric coordinates of a point of interest on the micromesh.

Systems, methods, and non-transitory computer-readable media are disclosed for variably rendering graphical representations of co-users in VR environments based on social graph information between the co-users and a VR user. For example, the disclosed systems can identify a co-user within a VR environment. Furthermore, the disclosed systems can determine a social relevancy (e.g., a social relationship type) between the co-user and a VR user within the VR environment based on social graph information. Then, the disclosed systems can select and/or determine a graphical representation and/or other capabilities of the co-user within the VR environment based on the social relevancy. Additionally, the disclosed systems can display the co-user within the VR environment using the determined graphical representation type (e.g., from the perspective of the VR user).

Examples are disclosed that relate to utilizing image sensor inputs from different devices having different perspectives in physical space to construct an avatar of a first user in a video stream. The avatar comprises a three-dimensional representation of at least a portion of a face of the first user texture mapped onto a three-dimensional body simulation that follows actual physical movement of the first user. The three-dimensional body simulation of the first user is generated based on image data received from an imaging device and image sensor data received from a head-mounted display device both associated with the first user. The three-dimensional representation of the face of the first user is generated based on the image data received from the imaging device. The resulting video stream is sent, via a communication network, to a display device associated with a second user.

In order to output an image to a user, an electronic device may include loading a plurality of basic image tiles with a first resolution, the plurality of basic image tiles being preset for a graphic space set based on a virtual coordinate system, determining a target basic-image tile among the plurality of basic image tiles based on a coordinate of a virtual camera set on the virtual coordinate system, transmitting information on a target basic-image tile to a server, receiving a plurality of detailed image tiles with a second resolution corresponding to the target basic-image tile from the server, and outputting an image with the second resolution based on the plurality of detailed image tiles when the virtual camera zooms in on the target basic-image tile.