Patent application number | Description | Published |
20110235883 | THREE-DIMENSIONAL TEMPLATE TRANSFORMATION METHOD AND APPARATUS - A method includes: obtaining designated 3D template for a designated part in a heart; generating 3D annulus data representing an annulus of a heart valve identified as a reference of transformation, from a cross-section image in a plane passing through an axis within the annulus of the identified heart valve in 3D volume data generated from tomographic images; identifying a first point on the annulus of the identified heart valve in the designated 3D template and a second point on the annulus represented by the 3D annulus data; arranging n starting points from the first point on the annulus of the identified heart valve in the designated 3D template and n target points from the second point on the annulus represented by the 3D annulus data; and calculating movement destination coordinates of vertices of polygons relating to the designated 3D template to transform the designated 3D template. | 09-29-2011 |
20110292039 | VISUALIZATION PROCESSING METHOD AND APPARATUS - This method includes: generating data of a mask surface with respect to visualization data arranged in a virtual three-dimensional space, for calculation values at respective calculation points; identifying, from a first data storage storing, as time-series data, positions of the calculation points and calculation values at the calculation points, a first point whose position is closest to a predetermined point on the mask surface; reading out, from the first data storage, a position of the identified first point in each time; arranging the mask surface in each time based on a direction of a user's sight line and the read position in each time so as to make the mask surface perpendicular to the direction of the user's sight line and have the predetermined point on the mask surface arranged at the read position; and drawing polygon data of the visualization data and the mask surface in time series. | 12-01-2011 |
20120301053 | IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS - The disclosed method includes: carrying out scale conversion for a first pixel value of each of a plurality of pixels included in an image to generate a second pixel value of the plurality of pixels; applying a reaction-diffusion equation including a diffusion element and a reaction element that is set according to at least the number of types of regions to be extracted, to the second pixel value of each of plural pixels within a certain region of the image a predetermined number of times to generate a third pixel value of each of the plurality of pixels included in the image; and carrying out scale inverse-conversion that is inverse-conversion of the scale conversion, for the third pixel value of each of the plurality of pixels included in the image to generate a fourth pixel value of the plurality of pixels. | 11-29-2012 |
20130002677 | SHAPE DATA GENERATION METHOD AND APPARATUS - A disclosed method is a shape data generation method including: identifying, from among a plural vertices of a first shape to be transformed, one or plural first vertices satisfying a predetermined condition including a condition that a normal line of a vertex to be processed crosses with a second shape that is a shape of a transformation target, which is identified from image data; transforming the first shape so as to move each of the one or plural identified first vertices a predetermined distance toward a corresponding normal direction of the identified first vertex; and storing data concerning the plural vertices of the transformed first shape after the identifying and the transforming are executed the predetermined number of times. | 01-03-2013 |
20130304445 | SIMULATION METHOD AND SIMULATOR APPARATUS - A geometric model of an organ represents its shape as a collection of elements formed from nodes and connections among them. A first vessel network model represents a network of first vessels whose diameters are larger than or equal to a threshold. A plurality of second vessel networks each represent a network of second vessels whose diameters are smaller than the threshold. In a simulator apparatus, a first analysis unit analyzes hemodynamics in the first vessels, based on the geometric model and first vessel network model of the organ and reflecting the motion of the organ. A second analysis unit analyzes hemodynamics in the second vessel network models connected to the nodes, by using output data of the first analysis unit which indicates the hemodynamics in the first vessels at each of the nodes. | 11-14-2013 |
20130328868 | COMPUTER PRODUCT, RENDERING METHOD, AND RENDERING APPARATUS - A computer-readable recording medium stores a rendering program that causes a computer to execute process that includes acquiring an internal organ model that is a set of elements having physical values according each position of an internal organ; setting a plurality of planes that form given angles with a line of sight from a viewpoint position, and intersect the internal organ model; assigning among the set of elements, a physical value of an element intersected by a plane set at the setting, to an element cross section that is a plane where the plane set at the setting intersects the element; and rendering, based on the physical value, the element cross section to which the physical value has been assigned. | 12-12-2013 |
20130332126 | COMPUTER PRODUCT, RENDERING APPARATUS, AND RENDERING METHOD - A computer-readable recording medium stores a rendering program that renders simulation results and causes a computer to execute a process that includes detecting a range of physical values of a rendering element group to be rendern and of an area specified in a simulation model that is a set of elements each having a physical value for each position to be simulated; identifying from the simulation model, an adjacent element group that is a set of elements adjacent to rendering elements included in the rendering element group; determining whether the physical value of each adjacent element included in the adjacent element group is within the range; adding to the rendering element group, an adjacent element for which the physical value is determined to be included in the range; and rendering the simulation model according to the rendering element group to which the adjacent element has been added. | 12-12-2013 |
20130332134 | COMPUTER PRODUCT, DISPLAY METHOD, AND DISPLAY APPARATUS - A computer-readable recording medium stores a display program for displaying simulation results and causing a computer to execute detecting from a first element group having physical values according to position in a simulation model of a first unit time, a first element string along a first line that passes through the simulation model; extracting from the first element string, first physical values of the first element string; setting a second line that passes through the simulation model of a second unit time subsequent to the first unit time; detecting from a second element group having physical values according to position in the simulation model of the second unit time, a second element string along the second line and corresponding to the first element string; extracting from the second element string, second physical values of the second element string; and displaying the first physical values and the second physical values. | 12-12-2013 |
20140002450 | VISUALIZATION METHOD, AND VISUALIZATION APPARATUS | 01-02-2014 |
20140022252 | RENDERING PROCESSING METHOD AND APPARATUS - A disclosed method includes extracting a region from each of plural cross sections in a volume data representing a solid to be rendered, based on data of brightness values of texels for each of the plurality of cross sections, wherein the plural cross sections are perpendicular to an axis set for the volume data; deleting any one of two adjacent cross sections among the plural cross sections based on a correlation between a region extracted for one cross section of the two adjacent cross sections and a region extracted for the other cross section of the two adjacent cross sections; and rendering the solid by using data of the cross sections after the deleting. | 01-23-2014 |
20140022253 | MODEL GENERATION METHOD AND MODEL GENERATION APPARATUS - A computer sets a first point on a first part in a plurality of tomographic images of an organ. The computer determines a relative position of the first point with respect to reference positions of the first part and a second part in the tomographic images. The computer sets a second point in association with the first point, on the first part in a 3D model representing a structure of the organ, such that a relative position of the second point with respect to reference positions of the first part and the second part in the 3D model matches the relative position of the first point. Then, the computer deforms the 3D model such that, when the tomographic images and the 3D model are placed in the same coordinate system, the position of the second point matches that of the first point. | 01-23-2014 |
20140022259 | DISPLAY PROCESSING METHOD AND APPARATUS - A disclosed display processing method includes: first generating data of a faying surface region between a first line element, for which a greatest radius is defined, and a second line element, for which a second greatest radius is defined, at a point where end points of plural line elements are connected, by using data of plural line elements for which a radius and coordinates of both end points are defined and data representing connection relationships between line elements; and second generating, for each line object of the plural line elements, data of a tubular object that is defined based on a faying surface region generated for the line element. | 01-23-2014 |
20140023261 | DISPLAY PROCESSING METHOD AND APPARATUS - A disclosed method includes: identifying an axis that is a straight or curved line inside of a space; first generating plural surface regions that are orthogonal to the identified axis; second generating, from a first vector provided at each vertex of an unstructured grid disposed inside of the space, a second vector at each point of plural points on a surface region for each of the generated plural surface regions; and displaying an arrow corresponding to the generated second vector. | 01-23-2014 |
20140114633 | DISPLAY PROCESSING METHOD AND APPARATUS - A disclosed method includes: defining two first points in a model cross section of a model of an object and two corresponding second points in an image that is a cross section of the object for a reference time; performing first transforming including expansion or reduction for the model cross section so that a position of a second point is identical to a position of a corresponding first point; superimposing the image and the model cross section after the performing; second transforming a second model cross section for a second time after the reference time, so that positions of two second points in a second image for the second time are almost identical to positions of corresponding two first points in the second model cross section; and superimposing the second image and the second model cross section after the second transforming. | 04-24-2014 |
20140214389 | BIOLOGICAL SIMULATION METHOD AND BIOLOGICAL SIMULATION DEVICE - A biological simulation method of causing a computer to execute following steps. Firstly, the computer calculates states of a plurality of actins and states of a plurality of myosins in a sarcomere contained in a muscle of a biological body using a model that defines a plurality of states of the actins and a plurality of states of the myosins and transition rates between the states. Secondly, the computer calculates behaviors of the respective actins and behaviors of the respective myosins based on the states of the actins and the states of the myosins, respectively. Thirdly, the computer calculates a behavior of the sarcomere based on the behaviors of the actins and the behaviors of the myosins. Fourthly, the computer calculates a behavior of the muscle based on the behavior of the sarcomere. | 07-31-2014 |
20140214390 | BIOLOGICAL SIMULATION METHOD AND BIOLOGICAL SIMULATION DEVICE - A biological simulation method includes calculating a behavior of a material contained in a cell of an organ of a biological body, calculating a behavior of the cell based on the calculated behavior of the material, calculating a behavior of the organ based on the calculated behavior of the cell, reflecting the calculated behavior of the organ to the behavior of the cell, and reflecting the behavior of the cell to which the behavior of the organ has been reflected to the behavior of the material. | 07-31-2014 |
20140306960 | DISPLAY PROCESSING METHOD AND APPARATUS - A disclosed method includes: performing a processing for adjusting positions of voxel data for an object and data of a geometric model for the object; calculating, for each voxel included in a range defined by a cross section among plural voxels that are included in the voxel data, a voxel value of the voxel from physical values in elements of the geometric model, which are included in a predetermined range of the voxel, based on a relation between the cross section and vectors; and rendering an image by using the voxel value calculated for each voxel. A vector of the vectors is set for one element of plural elements included in the geometric model, the vectors represent a direction of an inner structure of the object, and the cross section is set for the voxel data and the geometric model data. | 10-16-2014 |
20150046139 | APPARATUS AND METHOD FOR GENERATING VASCULAR DATA - In a vascular data generation apparatus, a processor generates first vascular data based on anatomical statistics data about vessels of an organ. This first vascular data has a tree structure representing a vascular network in the organ. The processor further generates second vascular data representing a plurality of vessels that connect a plurality of nodes in a geometric model of the organ with the vascular network represented by the first vascular data. | 02-12-2015 |