61 results about "Boundary cell" patented technology

A method, apparatus, system, and computer program product provide the ability to extract level information and reference grid information from point cloud data. Point cloud data is obtained and organized into a three-dimensional structure of voxels. Potential boundary points are filtered from the boundary cells. Level information is extracted from a Z-axis histogram of the voxels positioned along the Z-axis of the three-dimensional voxel structure and further refined. Reference grid information is extracted from an X-axis histogram of the voxels positioned along the X-axis of the three-dimensional voxel structure and a Y-axis histogram of the voxels positioned along the Y-axis of the three-dimensional voxel structure and further refined.

A method, apparatus, system, and computer program product provide the ability to model a polyline boundary from point cloud data. Point cloud data is obtained and boundary cells are extracted. Potential boundary points are filtered from the boundary cells. Line segments are extracted from the potential boundary points and refined. A regularized polygon is obtained by intersecting the refined line segments.

A system and method for shallow water simulation may provide a framework for solving General Shallow Wave Equations (GSWE) to efficiently simulate 3D fluid effects on arbitrary surfaces using a height field representation. The height field representation may include height columns constructed along surface normals, which may be dependent on a condition of boundary cells adjacent to fluid cells and / or artificial viscosity effects. The framework may provide implicit schemes for solving for the effects of external forces applied to the fluid, including gravity and surface tension, and explicit schemes for solving for advection effects. The system and method may be implemented on general-purpose CPU(s) and / or GPU(s) and may be capable of simulating a variety of fluid effects including: waves, rivulets and streams, drops, and capillary events. In some embodiments, the system and method may achieve real-time fluid control and fluid shape design through user-interaction (e.g., in a graphical painting application).

A method including: a dividing step (A) of dividing external data into a plurality of cells (13) having boundaries orthogonal to each other, the external data including boundary data of an object which contacts incompressible viscous fluid; a cell classifying step (B) of classifying the divided cells into an internal cell (13a) positioned inside or outside the object and a boundary cell (13b) including the boundary data; a cut point determining step (C) of determining cut points in ridges of the boundary cell on the basis of the boundary data; a boundary face determining step (D) of determining a polygon connecting the cut points to be cell internal data for the boundary face; and a analyzing step (E) of applying a cut cell finite volume method combined with a VOF method to a boundary of a flow field to analyze the flow field.

A method including: a dividing step (A) of dividing external data into a plurality of cells (13) having boundaries orthogonal to each other, the external data including boundary data of an object which contacts incompressible viscous fluid; a cell classifying step (B) of classifying the divided cells into an internal cell (13a) positioned inside or outside the object and a boundary cell (13b) including the boundary data; a cut point determining step (C) of determining cut points in ridges of the boundary cell on the basis of the boundary data; a boundary face determining step (D) of determining a polygon connecting the cut points to be cell internal data for the boundary face; and a analyzing step (E) of applying a cut cell finite volume method combined with a VOF method to a boundary of a flow field to analyze the flow field.

A method for extending hard-handoff boundaries within a mobile telephone communications network is disclosed. There are multiple cells within a CDMA cellular / PCS telephone communications network, in which some of the cells operate under two separate carrier frequencies. In order to extend the hard-handoff boundary of a boundary cell that operates under two carrier frequencies, a neighboring cell adjacent to the boundary cell but operating under only one of the two carrier frequencies of the boundary cell must first be located. Then, a repeater with a fixed or adjustable delay is placed between the boundary cell and the neighboring cell such that the hard-handoff boundary of the boundary cell is extended.

The present invention relates to a method for generating a mesh model representing a 3D surface from unorganized 3D points extracted from a 3D scanner by using a shrink-wrapping scheme of boundary cells. A method for generating 3-dimensional mesh according to the present invention comprises the steps of: (a) receiving unorganized 3D point coordinates extracted by a 3D scanner or a digitizer; (b) extracting a minimum bounding box including all the point coordinates and uniformly dividing the extracted bounding box into cells of a predetermined size; (c) extracting a boundary cell including at least one point from the cells, extracting a boundary surface from all the boundary cells, and generating an initial mesh by summing extracted boundary surfaces; (d) calculating distances between each vertex constituting the mesh and the several points, finding a nearest point, and moving the vertex to the nearest point; and (e) averaging location of each shrink-wrapped vertex and location of the neighboring vertexes, and moving the shrink-wrapped vertex to center of neighboring vertexes.

The invention discloses an image processing-based erythrocyte and leukocyte classification counting method, system and device, and the method comprises the steps of carrying out the graying processingon an acquired sample image, then carrying out the binarization processing, and obtaining a black-white binary image; preprocessing the black and white binary image to restore the cells with holes inside, and removing the fragment cells and boundary cells; adopting a segmentation algorithm to segment the cell populations adhering to clusters in the preprocessed image; extracting the cell contoursand counting the cell contours to obtain the number of integral cells; dividing the whole cell into the erythrocytes and the leukocytes according to the area of a region occupied by a single cell inthe image; and respectively counting to obtain the number of the erythrocytes and the number of the leukocytes, so that the problems of high detection equipment cost, personal errors and the like in the prior art are solved, the equipment cost is reduced, and the detection efficiency and the detection accuracy are improved.

A method of forming integrated circuit (IC) chip shapes and a method and computer program product for converting an IC design to a mask, e.g., for standard cell design. Individual book / macro physical designs (layouts) are proximity corrected before unnesting and an outer proximity range is determined for each proximity corrected physical design. Shapes with a unique design (e.g., in boundary cells and unique instances of books) are tagged and the design is unnested. Only the unique shapes are proximity corrected in the unnested design, which may be used to make a mask for fabricating IC chips / wafers.

A honeycomb structure body has a cylindrical outer peripheral wall, partition walls and cells. The cells are surrounded by the partition walls. In a radial cross section of the honeycomb structure body, the cells is divided into cell density sections having different cell densities formed from a central section to the outer peripheral wall. A boundary wall is formed between two cell density sections. Each cell density section has boundary cells and interior cells. The boundary cells are in contact with the boundary wall. The interior cells are not in contact with the boundary wall. In the radial cross section of the honeycomb structure body, an inscribed circle of each of the boundary cells has a diameter of not less than 0.5 mm. Further, an inscribed circle of an interior cell adjacent to the boundary cell also has a diameter of not less than 0.5 mm.

A cutting point calculation step defines the cell complex that contains the boundary data, and calculating a cutting point where the boundary data cuts an edge or vertex of the rectangular parallelepiped cell of the cell complex. A cycle formation step classifies the rectangular parallelepiped cells into a boundary cell having the cutting point and a nonboundary cell having no cutting point, acquiring a cutting segment between a cell surface and boundary data for each boundary cell, and forming a cutting segment cycle closed by connecting the cutting points and the cutting segments alternately in sequence. A cycle internal division step divides the inside of the cutting segment cycle into cycle inner triangles sharing an adjacent side, for each boundary cell. A simplification step of unifying a plurality of cutting points on each edge, and registering the cycle inner triangles in the cell, for each boundary cell.

A method for determining insides and outsides of boundaries includes an external data input step of inputting external data constituted by boundary data of objects, a cell division step of dividing the external data into rectangular parallelepiped cells having boundary planes orthogonal to each other, a cell classification step of classifying the cells into a boundary cell that includes the boundary data and a non-boundary cell that does not include the boundary data, and a space classification step of classifying the non-boundary cells into a plurality of spaces that are partitioned by the boundary cells.

The present invention includes an external data acquisition step (S1), an external data input step (A), a cell division step (B), a cell classification step (C), a space classification step (D), a simulation step (S3), and an output step (S4). The cell classification step (C) includes a step of further classifying each of the boundary cells (13a) into a first type cell and a second type cell. The first type cell has a cutting point at which an edge line or vertex is cut by the boundary data. The second type cell has a cutting point that lies on a boundary with another cell of different hierarchy, and is larger than the another cell. The cell classification step (C) further includes a step of assigning a material number to each cell vertex.

The invention provides a method and device for mining an outlier. The method for mining the outlier comprises the steps that a multi-dimensional data set is divided into a plurality of grid cells, and the grid cell where each data point is located in the multi-dimensional data set is determined; a boundary cell in the grid cells is determined according to the number of the data points in each of the grid cells; the data points in the boundary cell are subjected to outlier mining based on an LOF algorithm. According to the technical scheme, the data size needing to be detected during outlier mining can be effectively reduced, therefore, the calculation amount of a mining algorithm is reduced, and the operation time of the mining algorithm is shortened.

To design a chip having a plurality of circuit areas driven by different power supplies, a boundary cell to be inserted on the boundary between the circuit areas is prepared. After creating a logic circuit netlist with a design tool, the boundary cell is inserted on the boundary. The boundary cell is connected on a signal transmission path between the circuit areas. A circuit for suppressing shoot-through current or leakage current is used as the boundary circuit. By preparing the boundary cell in a cell library, chip design is facilitated.

The invention discloses a method and apparatus for confirming a boundary cell of a tracking area. The method comprises the following steps: collecting base station longitude and latitude and network data of each cell in the tracking area TA; generating a Voronoi diagram according to the longitude and latitude; obtaining an initial boundary cell and a candidate boundary cell of the TA based on theVoronoi diagram; performing first evaluation on the network data of the initial boundary cell according to an evaluation model; when the result of the first evaluation does not satisfy the evaluationrequirements, performing second evaluation on the network data of the candidate boundary cell; comparing an optimization amplitude of the result of the second evaluation relative to the result of thefirst evaluation; when the optimization amplitude is greater than a threshold, confirming the candidate boundary cell as the boundary cell of the TA; and when the optimization amplitude is less than or equal to the threshold, confirming the initial boundary cell as the boundary cell of the TA. By adoption of the method and apparatus disclosed by the embodiment, the impact of the TA boundary changeon a network indicator can be accurately evaluated, thereby guiding the accurate designation of the TA boundary and reducing the signaling storm and the paging congestion rate.

A wireless network including a plurality of cells is configured into groups, each group defining a supercell. Within each supercell, a plurality of boundary cells defines an outer boundary of the supercell. Each boundary cell is adjacent to at least two other supercells. The wireless network also include a plurality of control devices, one control device corresponding to each supercell. Each control device controls communications within the plurality of cells of the corresponding supercell. Each control device utilizes a predictive algorithm to identify the at least two supercells adjacent to a given boundary cell and transmits data packets to a wireless device located in the given boundary cell and to the at least two supercells adjacent to the given boundary cell.

A method of converting three-dimensional shape data into cell internal data. The method includes an oct-tree division step of dividing external data including boundary data of a target object into rectangular parallelepiped cells having boundary planes orthogonal to each other by oct-tree division. The method further includes a cell classification step of classifying each of the cells into an internal cell positioned inside or outside the target object or a boundary cell including the boundary data, and a cut point determination step of determining cut points of edges of the boundary cell based on the boundary data. The method further includes a boundary surface determination step of connecting cut points to form a polygon, and determining the polygon as the cell internal data when the number of the determined cut points is no fewer than 3 and no more than 12.

A method and a program for converting boundary data into cell inner shape data, includes a division step (A) of dividing external data (12) constituted of the boundary data of an object into cells (13) in an orthogonal grid, a cutting point deciding step (B) of deciding an intersection point of the boundary data and a cell edge as a cell edge cutting point, a boundary deciding step (C) of deciding a boundary formed by connecting the cell edge cutting points as the cell inner shape data, a cell classification step (D) of classifying the divided cells into a nonboundary cell (13a) including no boundary surface and a boundary cell (13b) including a boundary surface, and a boundary cell data classification step (E) of classifying cell data constituting the boundary cell into internal cell data inside the cell inner shape data and external cell data outside the cell inner shape data.