Three-dimensional graph

Abstract: Developed is a new method of automated border detection using graph searching principles. The method takes into account the added information available in temporal or spatial sequences of images that are commonly available in biomedical applications. This method is applied to detect endocardial and epicardial borders in short-axis magnetic resonance images of the heart. Preliminary results show that it may be more robust in areas of noise when compared to a method based only on data from a single image. They suggest that this method could potentially improve performance of automated edge detection methods when spatial or temporal sequences of frames are available. >

Abstract: A method of displaying quality of service information. The method generally comprises collecting data from a system under test; identifying quality of service parameters; calculating values for quality of service parameters based on the data collected from the system under test; graphing the values on a three dimensional graph having a first axis indicating the parameters, a second axis indicating values of the parameters, and a third axis indicating time.

Abstract: The invention relates to a grinding and polishing industrial robot offline programming method based on a workpiece three-dimensional graph. A workpiece calibration module is used for obtaining a space pose homogeneous transformation matrix W of a workpiece coordinate system OW in a robot base coordinate system OBase through calibration; a workpiece three-dimensional graph processing module is used for scattering a grinding and polishing route into multiple space points, three-dimensional coordinate information of each space point is output, and multiple space pose homogeneous transformation matrixes R, defined in the workpiece coordinate system OW, on the grinding and polishing route on the surface of a workpiece are obtained through calculation; and a tool calibration module is used for establishing a tool tail end coordinate system OT at the position, in contact with the workpiece, of a robot tool tail end, and a space pose homogeneous transformation matrix T of the tool tail end coordinate system OT in the robot base coordinate system OBase is obtained through calibration, and robot offline programming is achieved. The grinding and polishing industrial robot offline programming method has the beneficial effects that the offline programming process of a grinding and polishing industrial robot can be simplified without depending on robot offline programming software.

Abstract: A three-dimensional graph display apparatus is provided for dynamically changing a display format for a three-dimensional graph. In a simulator of a three-dimensional object shape model wherein a three-dimensional object shape model is comprised of two objects, i.e., an object which has data related to properties of a target three-dimensional object (referred to as the "model object") and an object having data required to display the object (referred to as the "display object"); data of a plurality of model objects can be linked to one another; and the model object can be shared by a plurality of display objects, three-dimensional point data saved in a database is retrieved and the retrieved three-dimensional point data is converted to three-dimensional objects and an object (container object) having the three-dimensional objects representing the three-dimensional point data as slot values in its model object is provided.