Abstract: A proxy mesh that includes a plurality of proxy vertices is generated by projecting a visual mesh that includes a plurality of visual vertices onto a fitting plane. The visual mesh is of a character model. Each of the plurality of proxy vertices indicates a respective bone of the character model. A vertex weight associated with each of the plurality of proxy vertices of the proxy mesh is determined. Each of the vertex weights indicates how much the respective proxy vertex impacts a position of a visual vertex of the plurality of visual vertices that is adjacent to the respective proxy vertex. A position of each of the plurality of visual vertices is adjusted based on the determined vertex weights of a subset of the plurality of proxy vertices that are adjacent to the respective visual vertex.

Abstract: A plurality of UV patches of a three-dimensional model is divided into a primary set of the UV patches and a secondary set of the UV patches based on a patch size threshold. The UV patches of the primary set are grouped into a plurality of super-patches. Each of the plurality of super-patches includes different UV patches in the primary set that are packed together in a predefined shape. The plurality of super-patches is assembled together into a first bounding box. Poses of the plurality of super-patches are adjusted to reduce spacing between the plurality of super-patches. Gaps between the UV patches in the primary set are filled with the UV patches in the secondary set.

Abstract: Aspects of the disclosure provide methods and apparatuses for mesh processing. In some examples, a method for mesh processing includes receiving an input mesh that is bounded in a bounding box. The input mesh is formed of a first plurality of vertices and a first plurality of faces that connects the first plurality of vertices. The method further includes calculating at least a first visual measure for one or more faces in the first plurality of faces. At least the first visual measure for a face is calculated according to a number of valid rays respectively at a plurality of sampling positions of the face, a valid ray at a sampling position is a ray that is traced from the sampling position to the bounding box. The method also includes performing adjustments to the input mesh to generate a repaired mesh according to at least the first visual measure.

Abstract: An example real-time simulation framework for a fluid and granular substance mixture is disclosed. Such a framework may be based on modeling height fields and horizontal velocities of different material phases, which in the context of a water-sand system, may include sand, water, and mixed water. The framework achieves a trade-off between simulation fidelity and performance, providing real-time computation for interactive applications. The example framework formulates the external frictional force and elastoplastic internal force of sand based on horizontal grid and further handles the water/sand coupling via diffusion and momentum exchange. The time updates for the simulation is efficiently performed using a semi-implicit operator splitting discretization scheme and an asynchronous scheme for the fluid and the granular substance.

Abstract: A method of optimizing a simplified model associated with a high-poly model includes obtaining information about the simplified model; iteratively updating values of an initialized set of parameters of the simplified model to obtain optimized values; updating the initial set of vertices of a low-poly mesh with the optimized values; optimizing coordinates associated with the simplified model based on the optimized values of the initialized set of parameters; and baking texture from the high-poly model onto the optimized coordinates to generate the simplified model.

Abstract: An electrical connection device includes a panel and a connector. The panel is formed with an opened hole. The connector includes an insulative housing and a locking member. The insulative housing is configured to be capable of inserting into the opened hole of the panel and moving to an assembled position. The locking member has a protecting frame and a locking arm. The protecting frame has an inner frame body, an outer frame body and two side frame bodies which connects the inner frame body and the outer frame body. The locking arm has two end portions, an elastic arm portion and a lock protruding portion. The elastic arm portion is constructed as an elastic zone. The two end portions are connected to an inner side of the outer frame body so that the two side frame bodies are constructed as a deformable zone. When the lock protruding portion is squeezed by the panel, the elastic zone and the deformable zone all are capable of bending deformation.

Abstract: In a method, a visual hull is generated based on intersections of first 3D primitives of a plurality of first silhouettes with a bounding box of a 3D model. The first silhouettes are generated by projecting the 3D model onto planes perpendicular to a number of selected view directions of the 3D model. Each of the first 3D primitives is obtained by extruding a connected loop of a respective first silhouette along a view direction of the number of selected view directions that is associated with the respective first silhouette. A carved mesh is be generated based on subtractions of second 3D primitives derived from positive parts of the 3D model to carve out redundant structures from the visual hull. The positive parts are obtained based on fitting planes that slices the 3D model. A low-poly mesh sequence is generated based on progressive simplifications of the carved mesh.

Abstract: According to an aspect of the disclosure, a method of generating a low-poly mesh for a three-dimensional (3D) model is provided. In the method, an edge-collapse operation is performed on each of a plurality of edges of an input mesh to generate a simplified mesh in which a number of faces of the input mesh is reduced by the edge-collapse operation. A position of at least one vertex of the simplified mesh is updated to generate an updated mesh in which a distance between the simplified mesh and the input mesh is reduced. The low-poly mesh is generated based on an aligned mesh in which positions of vertices of the updated mesh are optimized by minimizing a shape difference between the simplified mesh and the updated mesh.

Abstract: A method of generating an iso-surface mesh for a three-dimensional (3D) model is provided. In the method a plurality of voxels is generated in a bounding box of an input mesh, where a size of each of the plurality of voxels is based on a size of the bounding box of the input mesh and an iso-value. One or more iso-surfaces in each of the plurality of voxels are determined based on an unsigned distance function and the iso-value. One or more feature points in each of the plurality of voxels are determined based on the one or more iso-surfaces in the respective voxel and a constraint function. A feature mesh is generated based on the determined one or more feature points, and an edge flip operation is performed on each of a plurality of edges of the feature mesh to generate the iso-surface mesh.

Abstract: A method is performed at a computing system for automatically generating an occluder, the method includes receiving an input model of the visual three-dimensional structure, the input model having a plurality of faces. The method includes simplifying the input model into an initial occluder including a plurality of candidate patches in a patch-based coarse mesh. The method includes determining a first quality metric of the initial occluder measured by a first number of pixels corresponding to objects behind the visual three-dimensional structure that are blocked by the input model and the initial occluder along a first view direction. The method includes removing one or more candidate patches associated with the first number of pixels from the initial occluder while maintaining the first quality metric above a first threshold to form the occluder for the visual three-dimensional structure.

Abstract: Methods, apparatus, and computer readable storage medium for navigating multiple objects from initial positions towards target positions are described in the present disclosure.

Abstract: Processing circuitry selects surrogate time instances respectively representing temporal subsets of a time duration of a first intermediate trajectory for a robot. The processing circuitry determines surrogate constraints respectively associated the surrogate time instances, the surrogate constraints require a distance between the robot and an obstacle to satisfy a safe distance requirement at the surrogate time instances. The processing circuitry determines an adjustment from the first intermediate trajectory to a second intermediate trajectory based on the surrogate constraints. The processing circuitry determines a first strict surrogate constraint for a first surrogate time instance representing a first temporal subset based on the first temporal subset, the first strict surrogate constraint ensures the safe distance requirement being satisfied in the first temporal subset in response to the first strict surrogate constraint being satisfied.

Abstract: A gateway for Internet of Things including a body, a main control board, and antenna components located on the body and including a short-range communication antenna component, a 5G antenna component and a Wi-Fi antenna component. The short-range communication antenna component, the main control board and the Wi-Fi antenna component are successively arranged on the body along a first direction of the body, a vertically upward direction of the body during the use of the gateway for Internet of Things being determined as the first direction of the body. A long-axis direction of the main control board is set parallel to the first direction of the body. The 5G antenna component includes at least one pair of two antennas arranged on both sides or the same side of a largest face of the main control board outside one or two sides along the first direction of the body.

Abstract: The present disclosure discloses a method for sending recommendation information and a positioning service device. The method includes: receiving feedback signals sent by user terminals within a signal coverage range of the positioning service device, where each feedback signal carries a first signal strength and a first signal direction of a radio-frequency signal sent by the positioning service device and received by the corresponding user terminal; determining, according to the first signal strength and the first signal direction corresponding to each user terminal, a main region where the user terminals are concentrated within the signal coverage range; and adjusting a signal sending direction of each radio-frequency signal to a direction where the main region is located and sending the recommendation information, where the recommendation information is borne by the radio-frequency signals.

Abstract: An environment warping approach is implemented to improve a robustness of contact-aware robot trajectory optimization by a change of coordinates from an ambient space to a flat space. The disclosed method warps the ambient space of a curved terrain to a warped space with a flat terrain using a optimized mapping function. A contact-aware trajectory optimization procedure is then formulated in the warped space under a set of geometrical and physical constraints with decision variables pulled back from the ambient space to the warped flat space. The decision variables are parameterized using high-order spines with a set of control parameters which are optimized in the warped space in order to generate the gait trajectory in the ambient space. For example, an objective function and constraint functions from the ambient space are pushed back to the warped space while force and rotational variables are pushed forward from the warped space to the ambient space.

Abstract: The embodiment of the present application proposes a TFT-LCD float glass substrate processing line, which is sequentially divided into a precision cutting and edge grinding working area, a surface grinding working area, and an inspection and packaging working area. In the precision cutting and edge grinding working area, a cold-end cutting device, a precision cutting and breaking device, a multi-axis edge grinding device, an after-edge-grinding cleaning device, a first edge inspection machine device, a first size measurement device, a grinding range measurement device, a flipping conveyor belt, and a loading frame are sequentially installed.

Abstract: A wearable device is disclosed. The wearable device includes: a wearable assembly and a display device detachably mounted on the wearable assembly, and the display device includes: a first body having a connecting end; a second body, which is rotatably connected to the connecting end of the first body, and can be folded inwardly toward the first body to overlap with the first body, or folded outwards away from the first body to unfold relative to each other; and, a flexible display device, which is covered on the first body and the second body, and can be folded inward or unfolded outward correspondingly with mutual rotation between the first body and the second body.

Abstract: In a method, a visual hull is generated based on intersections of first 3D primitives of a plurality of first silhouettes with a bounding box of a 3D model. The first silhouettes are generated by projecting the 3D model onto planes perpendicular to a number of selected view directions of the 3D model. Each of the first 3D primitives is obtained by extruding a connected loop of a respective first silhouette along a view direction of the number of selected view directions that is associated with the respective first silhouette. A carved mesh is be generated based on subtractions of second 3D primitives derived from positive parts of the 3D model to carve out redundant structures from the visual hull. The positive parts are obtained based on fitting planes that slices the 3D model. A low-poly mesh sequence is generated based on progressive simplifications of the carved mesh.

Abstract: A color setting method includes: displaying multiple groups of color pictures respectively according to a pre-set sequence, each group of color pictures including at least two pictures, and each picture including at least one color component; marking a selected picture in each group of color pictures in response to a first operation by a user; acquiring a user's color preferences according to a plurality of selected pictures and color components of each picture; setting color parameters of a display device according to the color preferences.

Abstract: In a method, a visual hull is generated based on intersections of first 3D primitives of a plurality of first silhouettes with a bounding box of a 3D model. The first silhouettes are generated by projecting the 3D model onto planes perpendicular to a number of selected view directions of the 3D model. Each of the first 3D primitives is obtained by extruding a connected loop of a respective first silhouette along a view direction of the number of selected view directions that is associated with the respective first silhouette. A carved mesh is be generated based on subtractions of second 3D primitives derived from positive parts of the 3D model to carve out redundant structures from the visual hull. The positive parts are obtained based on fitting planes that slices the 3D model. A low-poly mesh sequence is generated based on progressive simplifications of the carved mesh.