599 results about "Z-Coordinate" patented technology

A video gesture-based three-dimensional computer interface system that uses images of hand gestures to control a computer and that tracks motion of the user's hand or a portion thereof in a three-dimensional coordinate system with ten degrees of freedom. The system includes a computer with image processing capabilities and at least two cameras connected to the computer. During operation of the system, hand images from the cameras are continually converted to a digital format and input to the computer for processing. The results of the processing and attempted recognition of each image are then sent to an application or the like executed by the computer for performing various functions or operations. When the computer recognizes a hand gesture as a "point" gesture with one or two extended fingers, the computer uses information derived from the images to track three-dimensional coordinates of each extended finger of the user's hand with five degrees of freedom. The computer utilizes two-dimensional images obtained by each camera to derive three-dimensional position (in an x, y, z coordinate system) and orientation (azimuth and elevation angles) coordinates of each extended finger.

The invention provides a system for enhancing the ability of a surgeon to access a target site within a patient. The system includes a data file containing volumetric scan data of a region of the patient that includes the target site, a display device, and a movable imagining tool for producing on the display device, an image of visible patient structure seen by the tool. A computer in the system operates to (i) determine the position and/or orientation of the tool in the frame of reference of the patient, (ii) identify the scan-data coordinates (either x,y or x,y,z coordinates) of the target site, and (iii) project on the video image on the display device, indicia that indicate the lateral position of the target site with respect to the patient structure imaged on the display device.

Disclosed is a multiple coordinate controller device having a three-dimensional body with a first surface portion and a second surface portion where the second surface portion is not coplanar with the first surface. A first transducer with a first sensing surface is coupled to the first surface portion of the body and capable of detecting both positions and a range of pressure forces at positions on the first sensing surface. The first transducer is further capable of providing a first range of z coordinates at a detected x,y coordinate in response to the range of pressure forces on said first sensing surface. A second transducer having a second sensing surface is coupled to the second surface portion of the body and capable of detecting both positions and a range of pressure forces at the positions on the second sensing surface. The second transducer is further capable of providing a second range of z coordinates of opposite polarity to the first range of z coordinates in response to the range of forces on second sensing surface.

A lithographic apparatus includes a displacement measuring system to measure a position of a moveable object with respect to a reference frame of the lithographic apparatus, in at least three coplanar degrees of freedom (x, y, Rz) of an orthogonal x-y-z coordinate system centred in the center of the moveable object. The moveable object includes a support structure configured to support a patterning device or a substrate table configured to support a substrate. The displacement measuring system includes at least three sensor heads, each sensor head being positioned with a measuring direction substantially coplanar with the x-y plane of the coordinate system and each sensor head being furthermore positioned with the measuring direction substantially perpendicular to a connection line connecting the sensor head with the center of the movable object and extending coplanar with the x-y plane.

A storage stack for storing sample containers in a low temperature sample store. The low temperature sample store is equipped with a robot that acts according to Cartesian X, Y, and Z coordinates for horizontally positioning sample containers in X/Y planes inside of individual storage stacks and for vertically moving individual storage stacks within the low temperature sample store in Z direction. The sample store defines a storage area for accommodating an array of m×n storage stacks that are accomplished to be oriented adjacent to each other and parallel to the vertical Z direction. Each individual storage stack includes first and second rigid lateral support flanges extending in the Z direction and including a multitude of storage webs for supporting sample containers inserted into the storage stack; a rigid back panel, rigidly linking the lateral support flanges to each other; a rigid bottom plate, fixed to lower ends of at least one lateral support flange and/or of the back panel; and a rigid insulation cover, fixed to upper ends of at least one lateral support flange and/or of the back panel. The insulation cover includes a handling plate and an insulation block. A number of m×n insulation covers of all storage stacks of a storage stack array form an essentially continuous insulation layer on a storage area of the low temperature sample store. For all storage stacks, carrying elements are provided. These carrying elements statically connect the bottom plate of each individual storage stack with a bottom structure of the storage area of the low temperature sample store. These carrying elements are accomplished to carry the entire weight of the individual storage stack and all sample containers inserted in this storage stack and to confer this entire weight to a bottom structure of the storage area of the low temperature sample store.

The invention provides a welding robot device for welding of a plunger pump power end shell. The welding robot device for welding of the plunger pump power end shell comprises a controlling system, a portal frame X-Y-Z coordinate system, a welding system, a space positioner and a tool clamp. The tool clamp is used for clamping the plunger pump power end shell, and a plunger pump shell can be one-time clamped; all welding joints of the plunger pump shell can be positionally changed to a flat welding position or a flat fillet welding position through the space positioner; a welding mechanical arm is connected with a coordinate Z-axis in the portal frame X-Y-Z coordinate system, and welding of welding joints in the different positions can be finished; and synchronized driving of the welding mechanical arm, a coordinate X-axis, a coordinate Y-axis, the coordinate Z-axis and the space positioner can be realized, so that continuity during the welding process is guaranteed, and welding quality and welding efficiency are ensured.

Method includes calculating a mean z coordinate value for points within the point cloud. An initial set of points is selected which have z coordinate values which deviate from the mean by at least an initial value. Thereafter, a triangulated irregular network (TIN) is constructed using the initial set of points. The method continues by determining if there is a significant point that exists among the points contained within an x, y extent of each triangle. If so, the TIN is updated to include the initial set of points and any significant points determined to exist within the triangles that form the TIN. Thereafter, the method continues by repeating the determining and the updating steps until there are no additional significant points found within the triangles.

A method of calibrating a probe mounted on a machine in which the probe has a probe calibration matrix which relates the probe outputs in three orthogonal axes to the machine's X, Y and Z coordinate system. A datum ball mounted on the machine is bi-directionally scanned by the probe in one or more planes. For each plane, the mean direction of two approximate probe vectors in the plane is rotated about an axis orthogonal to that plane until the apparent material condition from the scan in each direction is the same. This process may be iterative. The mean values of the directions of the probe vectors for each plane are rotated, thus forming a corrected probe calibration matrix. The datum ball is preferably bi-directionally scanned in three orthogonal planes.

A feature extractor samples points on an input pattern drawn in real time. In addition to X and Y coordinates, each sample has an up/down or Z coordinate value representing whether or not the sample point is a perceptible part of the pattern. The groups of coordinate values are transformed into respective sets of coefficients of Chebyshev polynomials by least-squares fit. A recognition unit can use the coefficients as features to identify the character. Additional features, such as aspect ratio and center of gravity, are also derived to aid in recognizing the pattern or reconstructing its image.

A method for repairing an airfoil comprising creating a nominal numerically-controlled tool path based on a nominal shape of the airfoil, measuring the airfoil using a displacement sensor, capturing differences in the airfoil shape as compared to the nominal shape, creating a three-dimensional map by synchronizing x, y and z coordinates and readings from the sensor, modifying the tool path based on the three-dimensional map, and machining the airfoil. A system for measuring and machining an airfoil comprising a computer operable for data acquisition and numerically-controlled tool path generation, a numerically-controlled machine, a cutting tool holder comprising a plurality of cutting tools, and a displacement-sensing probe.

An orthopedic plate has a portion with a curved bottom surface that is designed to extend longitudinally along the bone and change the inferior curve as it advances proximally along the bone from a shallower to a sharper radius and further spirals downward as the plate advances. The plate includes a set of tabs, offset from the longitudinal axis of the plate to provide for better pullout values. The ears may be located at the terminal portion of the plate or somewhat more intermediate to the terminus of the plate, depending on the intended application. A point in the center of the central screw hole can be used to define the origin of the plate, and the angles of the screw and/or pegs holes can be referenced with Z, Y, and Z coordinates relative to this central hole.

A three dimensional shape correlation computer software program which uses laser radar data for target identification. The correlation program obtains a scan of laser radar data of a target from a Ladar sensor. The data includes a plurality of X,Y,Z coordinate detection points for the target. The software simulates the sensor scan using a 3D wire-frame model of the target. An X,Y,Z coordinate location is computed for every point in the computer model of the target. The software compares the X,Y,Z coordinate detection points for the target with the X,Y,Z coordinate points for the computer model to determine if the points match. When there is a match a target identification is declared.

A preferred system for detecting an analyte in solid tissue, such as an intact lymph node, in vitro includes a laser arranged to generate a pulsed laser beam into solid tissue, which can be a fully intact lymph node. An acoustic sensor, and preferably at least three acoustic sensors are arranged in different positions to span a three dimensional space, such as in an X, Y and Z coordinate system, to detect photoacoustic signals generated within the lymph node. At least one computer receives signals from the acoustic sensor(s). The computer determines the presence or absence of, and preferably the position of analyte, from the signals and the timing of the signals. A preferred method for detecting an analyte in a lymph node in vitro includes exposing an extracted lymph node to a pulsed laser beam. A photoacoustic signal is sensed. The photoacoustic signal is analyzed to confirm the presence or absence of an analyte in the lymph node. Preferably, multiple photoacoustic signals are sensed from sensors that span a three dimensional space and the position of analyte is also determined.

Methods and apparatus for lossless LiDAR LAS file compression and decompression are provided that include predictive coding, variable-length coding, and arithmetic coding. The predictive coding uses four different predictors including three predictors for x, y, and z coordinates and a constant predictor for scalar values, associated with each LiDAR data point.

The location of one of a series of construction points at an indoor construction site is established using a robotic total station and a handheld device. Construction data is inputted into the handheld device with the construction data defining a plurality of construction points at the construction site. One of the plurality of construction points is selected with the handheld device. Data regarding the selected construction point is then transmitted wirelessly from the handheld device to a robotic total station. The robotic total station generates a beam of laser light, and directs the beam of laser light from the robotic total station to the construction point. The construction point is defined by x and y coordinates, and by an assumed z coordinate. The actual z coordinate is that of a point on a horizontal surface, such as a ceiling or floor, having the same x and y coordinates. Through an iterative process, the location of the construction point is established.

One of stereo cameras is set such that a front view of a support surface of a workpiece is imaged, an image produced by the camera is displayed, and a range of an area where measurement processing is enabled is assigned by a rectangular frame. A manipulation assigning an upper limit and a lower limit of a height measurement range is accepted. When each assignment is fixed, zero is set as a z-coordinate to each constituent pixel of an image to which the rectangular frame is set, and a z-coordinate based on the upper limit of the height measurement range and a z-coordinate based on the lower limit are set to coordinates corresponding to the rectangular frame. Perspective transformation of three-dimensional information produced by the setting is performed from a direction of a line of sight set by a user, a produced projection image is displayed on a monitor.

The invention discloses a non-cooperative target abutting measurement method based on additional sighting distance. The non-cooperative target abutting measurement method is combined by two measurement modes of different principles, i.e. a binocular vision measurement mode and a laser ranging mode, wherein the binocular vision measurement mode is a main measurement means for a six-degree-of-freedom parameter of a target relative position and a relative gesture; the laser ranging mode is mainly characterized in that a laser distance meter provides a laser light beam hot spot emitted on a target surface; and then, a Z coordinate of the hot spot to a laser distance meter coordinate system is obtained. Because measurement precision of the laser distance meter on a relatively long distance is far higher than that of the binocular vision measurement, the Z coordinate measured by a tiny fault of the laser distance meter can be used for correcting the Z coordinate obtained by the binocular vision measurement. X and Y coordinate correction can be carried out by relevance among three position coordinates in the binocular vision measurement, so that the three position coordinates of any characteristic point obtained by vision measurement can be corrected so as to improve binocular vision measurement precision, and especially measurement precision of a long-distance target characteristic point is improved.