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369 results about "3D rendering" patented technology

3D rendering is the 3D computer graphics process of converting 3D models into 2D images on a computer. 3D renders may include photorealistic effects or non-photorealistic styles.

3D visualization method and system of natural resource data

InactiveCN105069020AReal-time online 3D rendering displayRealize high-performance 3D visualization expressionGeographical information databasesOther databases browsing/visualisationData setEmbedded database
The present invention relates to an on line 3D visualization method and system of natural resource data. The method mainly includes a step of natural resource data organization and storage and a step of natural resource data processing and 3D visualization. The step of natural resource data organization and storage includes: according to natural resource data characteristics and service characteristics, dividing data types, and making the natural resource data as tile image data formed by a plurality of tiles by adopting a pyramid model, then encoding each tile, and establishing a tile data set based on an embedded database technology, storing the tile data set in database, and establishing a quadtree index of space for each tile. The step of natural resource data processing and 3D visualization includes site and position 3D visualization and natural environment object dynamic 3D visualization. The method achieves real time on line 3D rendering display for all kinds of natural resources and geographic space information data in a high-performance 3D visualization environment.
Owner:国家信息中心

3-D rendering texture caching scheme

A 3D rendering texture caching scheme that minimizes external bandwidth requirements for texture and increases the rate at which textured pixels are available. The texture caching scheme efficiently pre-fetches data at the main memory access granularity and stores it in cache memory. The data in the main memory and texture cache memory is organized in a manner to achieve large reuse of texels with a minimum of cache memory to minimize cache misses. The texture main memory stores a two dimensional array of texels, each texel having an address and one of N identifiers. The texture cache memory has addresses partitioned into N banks, each bank containing texels transferred from the main memory that have the corresponding identifier. A cache controller determines which texels need to be transferred from the texture main memory to the texture cache memory and which texels are currently in the cache using a least most recently used algorithm. By labeling the texture map blocks (double quad words), a partitioning scheme is developed which allow the cache controller structure to be very modular and easily realized. The texture cache arbiter is used for scheduling and controlling the actual transfer of texels from the texture main memory into the texture cache memory and controlling the outputting of texels for each pixel to an interpolating filter from the cache memory.
Owner:INTEL CORP

Method and apparatus for medical ultrasound navigation user interface

In one embodiment, an ultrasound system is provided that includes a probe having a 2D array of transducers for acquiring ultrasound information along a plurality of scan lines through an object in real time. The scan lines are arranged to define volumetric data corresponding to a volume of interest (VOI) in a subject or patient. One such VOI may include the human heart or some portion of the human heart. The system includes a beamformer configured with scan parameter values that define the scan lines. An image buffer stores multiple data volumes acquired over time that are successively retrieved and processed by a display processor. The display processor accesses the data volumes stored in the image buffer successively to control generation of at least one of 2D and 3D renderings based on display parameters, wherein the display processor obtains from the image buffer a first data volume defined based on first scan parameter values, while the probe acquires ultrasound information for a second data volume that is entered into the image buffer. The second data volume is defined based on second scan parameter values. A navigation view presents in real time the renderings generated by the display processor with their corresponding 3D orientation. A navigator is provided that controls the display of the navigation view in real time such that, as the user adjusts a display parameter value to change a view plane, images presented in the navigation view are updated to reflect the view plane. A user interface is provided for adjusting the scan and display parameter values.
Owner:GENERAL ELECTRIC CO

Double safety and effectiveness inspection method of human lumbar bone and implant

The invention provides a double safety and effectiveness inspection method of human lumbar bone and implant, and belongs to the field of medicine. The method comprises the following steps: acquiring a 3D (three-dimensional) rendering model of lumbar body bone, lumbar disc and interspinous ligament by a 3D reconstruction technology; performing 3D grid division to the 3D rendering model, and giving attributes of a heterogeneous material to the 3D rendering model; performing 3D modeling to an implant; assembling the lumbar body bone, the lumbar disc, the interspinous ligament and the implant, and analyzing stress and strain of the assembly by adopting uniformly distributed nodal load through a finite element analysis method; simulating visible finite element analysis by a computer before the implant is implanted into a human body. Therefore, the verification requirement to bone and implant double safety and effectiveness can be fulfilled, the damage of the implant to original human lumbar bones can be prevented, double safety and effectiveness of the bones and implant can be guaranteed, the manufacture cost can be effectively reduced along with convenience and quickness, and individual and industrial manufacturing of a human lumbar bone implant can be realized. The method is applicable in the field of implant stress-strain analysis in the orthopedics department.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Voxelization of a mesh

A method for 3D rendering, including receiving a group of 3D triangles defining a mesh of a surface, each 3D triangle in the group having 3D vertices with respective 3D coordinates, and transforming each 3D triangle into a 2D triangle having 2D vertices corresponding respectively to the 3D vertices, each 2D vertex having respective 2D pixel coordinates and a triplet of pixel attributes corresponding to the 3D coordinates of a corresponding 3D vertex. Each 2D triangle is passed to a graphics processor, which treats the triplet of pixel attributes of each 2D vertex as interpolatable values. The graphics processor computes respective triplets of interpolated pixel attributes for pixels within each 2D triangle by interpolation between the pixel attributes of the 2D vertices, and a 3D image of the surface is rendered by converting the interpolated pixel attributes computed by the graphics processor into voxel coordinates in the 3D image.
Owner:BIOSENSE WEBSTER (ISRAEL) LTD

Method and system for early Z test in title-based three-dimensional rendering

A method and system for an early Z test in a tile-based three-dimensional rendering is provided. In the method and system for an early Z test, a portion which is not displayed to a user is removed prior to performing a rasterization process, and thereby performing the 3D rendering efficiently. The method includes segmenting a scene into tiles for performing a rendering with respect to a triangle; selecting a first tile of the tiles, which has a tile Z value less than a minimum Z value of the triangle; and performing the rendering with respect to the triangle in remaining tiles excluding the selected first tile of the tiles.
Owner:SAMSUNG ELECTRONICS CO LTD
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