399 results about "Cad system" patented technology

A method for producing orthodontic aligners uses a CAD system to modify a digital model of the patient's oral anatomy to incorporate features that accommodate attachment of aligner auxiliaries to the completed aligner(s).

The invention provides systems and methods for detection, grading, scoring and tele-screening of cancerous lesions. A complete scheme for automated quantitative analysis and assessment of human and animal tissue images of several types of cancers is presented. Various aspects of the invention are directed to the detection, grading, prediction and staging of prostate cancer on serial sections/slides of prostate core images, or biopsy images. Accordingly, the invention includes a variety of sub-systems, which could be used separately or in conjunction to automatically grade cancerous regions. Each system utilizes a different approach with a different feature set. For instance, in the quantitative analysis, textural-based and morphology-based features may be extracted at image- and (or) object-levels from regions of interest. Additionally, the invention provides sub-systems and methods for accurate detection and mapping of disease in whole slide digitized images by extracting new features through integration of one or more of the above-mentioned classification systems. The invention also addresses the modeling, qualitative analysis and assessment of 3-D histopathology images which assist pathologists in visualization, evaluation and diagnosis of diseased tissue. Moreover, the invention includes systems and methods for the development of a tele-screening system in which the proposed computer-aided diagnosis (CAD) systems. In some embodiments, novel methods for image analysis (including edge detection, color mapping characterization and others) are provided for use prior to feature extraction in the proposed CAD systems.

A geographical information system and a method are disclosed for geospatially mapping a least one parcel polygon within a geographical region and for displaying at least one specific attribute of each parcel polygon, i.e. a topological area within the given geographical region, as an attached attribute of latitude and longitude coordinates. The centroid or center point of each of the parcel polygons is determined and stored into conventional computer storage means. The latitude and longitude point feature at the centroid of each parcel polygon is established and similarly stored. A unique tax identification number, e.g. the Assessor Parcel Number (APN) or Parcel Identifier Number (PIN), is assigned to each of the point features. A correlation is then made between the unique tax identification number of the point feature to a text list of at least one attribute, e.g., the physical address of the parcel polygon, of each of the point features. This attribute becomes attached to each point feature. The resulting parcel polygon map and point features with one or more of the attached attributes can then be displayed within a GIS or CAD system to provide the user, for example, accurate locations of street addresses for use in environments that require pinpoint accuracy, such as emergency response.

Embodiments of the invention comprise methods and systems for modifying the geometry data of a CAD object through modification of an arbitrary cross section, the CAD object being stored within a computer aided design modeling system. The method includes receiving, from a user the position and orientation of a cross section plane, the cross section plane being arbitrarily positioned relative to the orientation of a CAD object, and wherein the arbitrarily positioned and oriented plane is intersecting the CAD object. The CAD system generates a user modifiable two dimensional cross section from the intersection of the cross section plane and the CAD object, the cross section having a plurality user modifiable control elements. Changes to the control elements are correspondingly made to the cross section plane and the CAD object.

A method of modeling multiple material parts for additive manufacturing processes such direct metal deposition operates within the constraints of a single material CAD system. Each material is modeled separately as a single or multiple solid part, under the assumption that there are no internal multiple materials; that is, no voids for other material parts. The parts are ordered from the outer most geometry to the innermost geometry and Boolean operations are performed to calculate the final volume for each part. In use of the invention, should any design changes occur, only the parts as originally defined need to be modified, and the method is reapplied. The method is applicable to the generation of CAM cutting paths for 2½-D and 3-D geometries by pocket machining with spiral-in, spiral-out, and arbitrary direction raster tool paths using stock material with and without reflection, depending upon the geometry. Single- and multi-material files may be merged one toolpath file, and commands may be embedded for closed- or open-loop control of the fabrication process.

Programmatic extraction and management of solid and surface modeling parameters from raw 3D scan data is discussed. An automated process reads raw 3D scan data and works in communication with a CAD system able to perform CAD part modeling. The user is provided with an automatic function to segment a mesh model (formed from the raw 3D scan data) into dozens of mesh regions. A graphical user interface is provided which enables a user to choose a type of the design intent along with the mesh regions from which the design intent is calculated. Each design intent is represented in a vector, a plane or a poly-line depending upon the type of design intent. In response to a user demand for the parameters of a modeling feature, a best approximation of the requested parameter value is calculated by processing the raw 3D scan data using a set of functions.

A CAD system having a plurality of clients connected by a network enables simulations to be run that reflect design information from other client CADs. A server 100 causes a computing unit 101 to reflect in a three-dimensional model generated based on design according to any given client 110-140 design data according to any other client 110-140. Then, using that three-dimensional model, the server carries out an operating simulation and transmits the simulation results to the requesting client. The client that receives the simulation results from the server 100 then displays those simulation results on a design screen.

A device for determining an interference region of a robot, capable of determining an interference region/non-interference region and the like on an off-line layout space without difficulty. Geometric data of a robot and peripheral objects is read from a CAD system or the like to be displayed in the form of a layout display, to thereby form a cage region. An initial occupied region is found by calculating a three-dimensional position of each arm at an initial position. An operation simulation is run, and the tree-dimensional positions are repeatedly calculated, thereby finding the aggregate sum of the occupied region. After the robot is moved, a total occupied region G, an overlapping region H, a protruding region K, a non-occupied region M and the like are displayed in different colors, to thereby perform layout correction of a peripheral object, a change of the cage region, etc. It is also possible to judge the presence or absence of the overlapping region H/protruding region K and to search “a hidden non-occupied region” by way of a sectional display in which points A, B and C are designated.

A system and method for automatically estimating the optimized cost of a part during the course of design of the part on a computer-aided design (CAD) system by a designer. The method includes extracting parametric features of a current design from the CAD system. Manufacturing cost drivers are identified on the basis of the parametric features. The manufacturing cost drivers are translated into costs using process models. The costs are simultaneously optimized with respect to a plurality of operations within specified machine constraints using an algorithm with dynamically linked structures to obtain estimates of optimized costs and cost reasoning. An estimate of optimized costs and cost reasoning is fed back to the designer as an output display on an output device.

An “architecture generation engine” is operative with a CAD system to implement circuits into PLD (programmable logic device) architectures and to evaluate performances of different architectures. The architecture generation engine converts a high level, easily specified description of a PLD architecture into a highly detailed, complete PLD architecture database that can be used by a CAD toolset to map a circuit netlist into a PLD. The architecture generation engine also enables performance evaluation of a wide variety of PLD architectures for given benchmark circuits.

The invention discloses an automatic segmentation method for a lung-area CT sequence. The method is characterized by comprising the steps of 1) an image I of the lung-area CT sequence is input; 2) the image I is segmented via interactive region growth; 3) according to a segmentation result, an initial contour is obtained, and seed-point coordinates of adjacent images are calculated; 4) based on the seed-point coordinates of the image I, a present image II in the sequence is segmented via the interactive region growth in step 2; and 5) step 2, 3, 4 are repeated to determine whether all images in the CT sequence are segmented, and if no, the step 3 is turned to. The automatic segmentation method automatically calculates mapping of the seed-point areas by combining the image context object characteristic continuity of the sequence to realize sequence segmentation, thereby obtaining complete three-dimensional area data of the lung, and providing basis for VOI extraction and classification of a suspected lung tubercle for a CAD system.

A method of efficiently creating an animation image data file is provided. Components of a device are modeled using a 3-D CAD system and filed. After file format conversion, the file is imported to application software for animation. The components are then assembled, a camera angle is selected, and the transparency of the components is specified. A video file is created and included in an HTML file which is a completed animation data file. A clear perspective of the device comprising complicated components can be obtained because some components created with 3-D CAD system are rendered transparent using the application software for animation.

An electronic design automation system combines features of discrete EDA/CAD systems and manufacturing systems into a monolithic system to enable a layperson to efficiently design, construct and have manufactured a specific class of custom electronic device, namely a computer processing unit with embedded software. A Graphical User Interface (GUI) is provided as the front-end to a Computer Aided Design (CAD) server that generates sophisticated control and manufacturing instructions that are delivered to a fabrication supply chain, which produces a specified device that is then transported via managed logistics into inventory and ordering systems at vendors for delivery to a designated customer.

An object of the present invention is to provide a three-dimensional CAD-system for adding data about a drafting direction of a die to three-dimensional data about the part to be formed by that die, and a cost calculation system for calculating the cost of the part based on that drafting direction data. A three-dimensional model generation unit of a CAD system generates: a three-dimensional shaped model of a given part based on information coming from an input operation unit. A drafting direction data setting unit establishes drafting direction data when the input operation unit is operated to designate the drafting direction of the die for press molding, injection molding or the like of the part in question. A projected area calculation unit calculates a projected area S of the part on a plane perpendicular to the drafting direction of the applicable die on the basis of the three-dimensional model of that part and the drafting direction data involved. A depth calculation unit calculates a depth D of the part in the relevant drafting direction.