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843 results about "3d coordinates" patented technology
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Video retrieval system for human face content
ActiveUS20080080743A1Digital data information retrievalRecord information storageVideo retrievalComputer graphics (images)
A method and apparatus for video retrieval and cueing that automatically detects human faces in the video and identifies face-specific video frames so as to allow retrieval and viewing of person-specific video segments. In one embodiment, the method locates human faces in the video, stores the time stamps associated with each face, displays a single image associated with each face, matches each face against a database, computes face locations with respect to a common 3D coordinate system, and provides a means of displaying: 1) information retrieved from the database associated with a selected person or people, 2) path of travel associated with a selected person or people 3) interaction graph of people in video, 4) video segments associated with each person and / or face. The method may also provide the ability to input and store text annotations associated with each person, face, and video segment, and the ability to enroll and remove people from database. The videos of non-human objects may be processed in a similar manner. Because of the rules governing abstracts, this abstract should not be used to construe the claims.
Owner:GOOGLE LLC
Transprojection of geometry data
InactiveUS7693325B2Accurately renderedAngle measurementImage enhancementComputer graphics (images)Image View
Owner:HEXAGON METROLOGY INC
Transprojection of geometry data
InactiveUS20050151963A1Accurately renderedAngle measurementImage enhancementComputer graphics (images)Image View
A system and methods for transprojection of geometry data acquired by a coordinate measuring machine (CMM). The CMM acquires geometry data corresponding to 3D coordinate measurements collected by a measuring probe that are transformed into scaled 2D data that is transprojected upon various digital object image views captured by a camera. The transprojection process can utilize stored image and coordinate information or perform live transprojection viewing capabilities in both still image and video modes.
Owner:HEXAGON METROLOGY INC
Point Cloud Compression using Prediction and Shape-Adaptive Transforms
InactiveUS20170214943A1Geometric image transformationImage codingPoint cloudComputer graphics (images)
A method compresses a point cloud composed of a plurality of points in a three-dimensional (3D) space by first acquiring the point cloud with a sensor, wherein each point is associated with a 3D coordinate and at least one attribute. The point cloud is partitioned into an array of 3D blocks of elements, wherein some of the elements in the 3D blocks have missing points. For each 3D block, attribute values for the 3D block are predicted based on the attribute values of neighboring 3D blocks, resulting in a 3D residual block. A 3D transform is applied to each 3D residual block using locations of occupied elements to produce transform coefficients, wherein the transform coefficients have a magnitude and sign. The transform coefficients are entropy encoded according the magnitudes and sign bits to produce a bitstream.
Owner:MITSUBISHI ELECTRIC RES LAB INC
Method and system for the three-dimensional surface reconstruction of an object
InactiveUS20070057946A1Fast and accurate reconstructionFast and correct labelingImage analysisCharacter and pattern recognitionTriangulation3d surfaces
A method for reconstructing 3D surface structure of an object uses a two stage approach. In the first stage, a first set of images is obtained, and a spatial coding technique, such as a random grid, is used for correspondence mapping of coordinates from a first image to a second image of an object, and the images are obtained at different angles with respect to the object. In the second stage, a second structured illumination, typically comprising a striped grid, is used to obtain a second set of images, typically comprising two further images of the object. The mapping provided by the first stage provides proper labeling of the grid between these two images of the second set, and enables accurate matching of elements between these images. Triangulation or epipole methods can then be used for obtaining the 3D coordinates of the surface being reconstructed.
Owner:COGENETENS
Method and system for three-dimensional handwriting recognition
InactiveUS20060159344A1Processing ability of efficiencyShort timeCharacter and pattern recognitionInput/output processes for data processingProjection planeHandwriting recognition
The present invention relates to three-dimensional (3D) handwriting recognition methods and systems. The present invention provides a 3D handwriting recognition method and corresponding system which allows to generate 3D motion data by tracking corresponding 3D motion, calculate corresponding 3D coordinates, construct corresponding 3D tracks, derive 2D projection plane based on some strokes 3D tracks of on character, and generate 2D image for handwriting recognition by mapping the 3D tracks onto the said 2D projection plane. The 3D handwriting recognition method according to the present invention can use the processing power of system more efficiently and highly improve the system performance. So that the system can get the final input result in a much shorter time after the user finishes writing a character without a long time waiting between two characters input, thus the user has more pleased and natural input experience.
Owner:SHAO XIAOLING +2
Laser Scanner
ActiveUS20140078519A1High profileReduce contentUsing optical meansElectromagnetic wave reradiationLaser scanningLight beam
A method of dynamically adjusting an angular speed of a light beam emitted by a scanner in measuring three-dimensional (3D) coordinates of a surface or of dynamically adjusting an acquisition rate of 3D coordinates of a surface.
Owner:FARO TECH INC
Omni-directional automatic forklift and 3D stereoscopic vision navigating and positioning method
InactiveCN104777835APrecise pick and placeFlexible planningPosition/course control in two dimensionsRadarWorking environment
The invention discloses an omni-directional automatic forklift and a 3D stereoscopic vision navigating and positioning method. The 3D stereoscopic vision navigating and positioning method comprises the following steps: acquiring information of a 3D coordinate in the working environment of the automatic forklift; generating a 3D map; acquiring real-time images and positioning an initial position according to the 3D map; determining a target position; navigating to the target position and judging whether encountering barriers; scanning and identifying two-dimensional codes on a goods shelf; judging whether the automatic forklift is over against the goods and is aligned with the goods; enabling the automatic forklift to insert into a goods shelf tray and completing taking the goods and putting the goods. The omni-directional automatic forklift and the 3D stereoscopic vision navigating and positioning method have the benefits that the 3D map of the working environment is built by a plurality of binocular stereo cameras, the automatic forklift is capable of effectively and accurately positioning, taking the goods and putting the goods with combination of a speedometer, a laser radar and a front camera, three-freedom-degree omni-directional movement on the plane is implemented by Mecanum wheels, the automatic forklift is capable of taking the goods and putting the goods on the same goods shelf without steering, any barriers in the working environment can be effectively avoided in tine by the laser radar and an infrared sensor, and the automatic forklift can be automatically charged by communication between an upper computer and a charging box.
Owner:WUHAN HANDY ROBOTICS TECH
High-speed scanning and overall imaging three-dimensional (3D) measurement method
InactiveCN102589476AFast measurementLittle effect on reflectivityUsing optical meansThree dimensional measurementPrism
The invention relates to a visual inspection technology. In order to meet the requirements of fast and high-accurate surface three-dimensional (3D) topography online measurement and the detection requirements of a production line on intelligence, fastness, high accuracy and low cost, the invention adopts the technical scheme that: a high-speed scanning and overall imaging 3D measurement method comprises the following steps of: carrying out external modulation on a driving power supply by using a laser so as to control the output of a word line laser; rotating a multifaceted prism under the drive of a high-speed motor, wherein line-structured light outputted by the laser is reflected and projected to the surface of a measured object by the multifaceted prism; and placing a photoelectric detector at a position which is the limit position projected by the line-structured light during the rotating process of the multifaceted prism, carrying out exposure on an area-array CCD (Charge-Coupled Device) camera during the process that the line-structured light scans the whole area, and establishing a measurement model, wherein the 3D coordinate (xp, yp, zp) of the surface feature point of the measured object is obtained according to a formula by using an image coordinate (u[theta]p, v[theta]p) formed by the area-array CCD camera and [theta]p. The high-speed scanning and overall imaging 3D measurement method is mainly applied to the fast and high-accurate surface 3D topography online measurement.
Owner:TIANJIN UNIV
Method for Creating 3D Coordinate Systems in Image Space for Device and Patient Table Location and Verification
InactiveUS20080031414A1Precise positioningChange positionPatient positioning for diagnosticsDiagnostic recording/measuringBody weightPatient positioning
The present invention provides a patient couch top or device for quickly and accurately positioning a patient during simulation and treatment by placing a series of small fiducial markers in discrete locations on the couch top or device. With use of the fiducial markers, the present invention allows for the correction for misalignment and deformation of patient positioning equipment which occurs due in part to a patient's size and weight. The present invention also provides a method for positioning a patient and correcting for deformation of the couch top or device.
Owner:QFIX SYSTEM LLC
Augmented reality (AR) annotation computer system and computer-readable medium and method for creating an annotated 3D graphics model
A system, computer-readable medium, and method for creating an annotated 3D model are provided. First, 3D coordinates of at least two real alignment points for / on a real object are acquired. Second, 3D virtual space, in which a 3D model exists, is merged with 3D real space, in which the real object exists, to thereby align the 3D model with the real object, by matching at least two virtual alignment points of the 3D model with the at least two real alignment points of the real object. Third, an annotated 2D image / video of the real object is prepared and projected to surfaces of the 3D model by translating a 3D coordinate and orientation of the visual sensor in the 3D real space used to acquire the annotated 2D image / video to a 3D coordinate and orientation of the visual sensor in the 3D virtual space, to thereby create an annotated 3D model.
Owner:NGRAIN CANADA CORP
Aerial device that cooperates with an external projector to measure three-dimensional coordinates
Owner:FARO TECH INC
System and method for 3D imaging using structured light illumination
InactiveUS8224064B1Acquisition speed is fastMore robust to extremely worn ridges of the fingersImage enhancementImage analysisRandom noiseComputer science
A biometrics system captures and processes a handprint image using a structured light illumination to create a 2D representation equivalent of a rolled inked handprint. The biometrics system includes an enclosure with a scan volume for placement of the hand. A reference plane with a backdrop pattern forms one side of the scan volume. The backdrop pattern is preferably a random noise pattern and the coordinates of the backdrop pattern are predetermined at system provisioning. The biometrics system further includes at least one projection unit for projecting a structured light pattern onto a hand positioned in the scan volume on or in front of the backdrop pattern and at least two cameras for capturing a plurality of images of the hand, wherein each of the plurality of images includes at least a portion of the hand and the backdrop pattern. A processing unit calculates 3D coordinates of the hand from the plurality of images using the predetermined coordinates of the backdrop pattern to align the plurality of images and mapping the 3D coordinates to a 2D flat surface to create a 2D representation equivalent of a rolled inked handprint. The processing unit can also adjust calibration parameters for each hand scan from calculating coordinates of the portion of backdrop pattern in the at least one image and comparing with the predetermined coordinates of the backdrop pattern.
Owner:UNIV OF KENTUCKY RES FOUND
Triangulation scanner having motorized elements
InactiveUS20150015701A1Television system detailsColor television detailsTriangulationComputer science
A 3D triangulation scanner includes a projector, a camera, and a processor. At least one of the projector and the camera has a zoom lens and a motorized zoom adjustment mechanism. The processor is responsive to executable instructions that uses triangulation calculations to calculate 3D coordinates of points on a surface that are based at least in part on a baseline length, an orientation of the projector and the camera, a position of a corresponding source point on an illuminated pattern source of the projector, and a position of a corresponding image point on a photosensitive array of the camera. The 3D coordinates of the points are calculated at one time and at another time, at least one of the projector FOV being wider at the one time than at the another time or the camera FOV being wider at the one time than at the another time.
Owner:FARO TECH INC
System and method for three-dimensional image capture
A three dimensional (3D) image capture system uses structured light technique. The 3D image capture system includes a first texture camera for capturing a textural image of a 3D object and a second geometry camera for capturing a geometric image of a 3D object while a structured light pattern is projected onto the 3D object. A pattern flash unit is used for projecting the structured light pattern onto the 3D object. The textural image is stored in a texture image file; and the geometric image is stored in a geometric image file. The geometric image file is processed to determine 3D coordinates and stored in a geometric image data file; and then the texture image file is processed to create texture data that is overlaid onto the 3D coordinates in the geometric image data file to produce a composite image.
Owner:FLASHSCAN 3D
Man-computer interaction method for intelligent human skeleton tracking control robot on basis of kinect
InactiveCN103399637AInteractive natureInput/output for user-computer interactionGraph readingHuman bodyDepth of field
The invention provides a man-computer interaction method for an intelligent human skeleton tracking control robot on the basis of kinect. The man-computer interaction method includes the steps of detecting actions of an operator through a 3D depth sensor, obtaining data frames, converting the data frames into an image, splitting objects and background environments similar to a human body in the image, obtaining depth-of-field data, extracting human skeleton information, identifying different positions of the human body, building a 3D coordinate of joints of the human body, identifying rotation information of skeleton joints of the two hands of the human body, identifying which hand of the human body is triggered according to catching of changes of angles of the different skeleton joints, analyzing different action characteristics of the operator, using corresponding characters as control instructions which are sent to a robot of a lower computer, receiving and processing the characters through an AVR single-chip microcomputer master controller, controlling the robot of the lower computer to carry out corresponding actions, and achieving man-computer interaction of the intelligent human skeleton tracking control robot on the basis of the kinect. According to the method, restraints of traditional external equipment on man-computer interaction are eliminated, and natural man-computer interaction is achieved.
Owner:NORTHWEST NORMAL UNIVERSITY
Sensing Apparatus and Method for Detecting a Three-Dimensional Physical Shape of a Body
ActiveUS20100238271A1Simple designImprove accuracyFoot measurement devicesMechanical counters/curvatures measurementsThree-dimensional spacePhysical shape
Owner:CORPUS E
Diagnosing multipath interference and eliminating multipath interference in 3D scanners by directed probing
A method for determining 3D coordinates of points on a surface of the object by providing a remote probe having a probe tip and a non-contact 3D measuring device having a projector and camera coupled to a processor, projecting a pattern onto the surface to determine a first set of 3D coordinates of points on the surface, determining susceptibility of the object to multipath interference by projecting and reflecting rays from the measured 3D coordinates of the points, projecting a first light to direct positioning of the remote probe by the user, the first light determined at least in part by the susceptibility to multipath interference, touching the probe tip to the surface at the indicated region, illuminating at least three spots of light on the remote probe, capturing an image of the at least three spots with the camera, and determining 3D coordinates of the probe tip.
Owner:FARO TECH INC
Three-Dimensional Scanner With External Tactical Probe and Illuminated Guidance
ActiveUS20140267623A1Eliminate the problemImage enhancementImage analysisGoodness of fitPostural orientation
An assembly that includes a projector and camera is used with a processor to determine three-dimensional (3D) coordinates of an object surface. The processor fits collected 3D coordinates to a mathematical representation provided for a shape of a surface feature. The processor fits the measured 3D coordinates to the shape and, if the goodness of fit is not acceptable, selects and performs at least one of: changing a pose of the assembly, changing an illumination level of the light source, changing a pattern of the transmitted With the changes in place, another scan is made to obtain 3D coordinates.
Owner:FARO TECH INC
Device and method for field calibration of vision measurement system
InactiveCN1605829AAddress flexibilitySolve for fast measuring cell calibrationImage analysisPhotogrammetry/videogrammetryTheodoliteVisual perception
The present invention is in-situ visual measurement system calibrating equipment and process. The calibrating equipment is 3D coordinate measuring system and stereo target, and the stereo target set inside the work range of the 3D coordinate measuring system consists of base plate as well as sensor calibrating target and system measured target, which are standard balls, set on two sides of the base plate. The 3D coordinate measuring system may be an industrial theodolite measurement system or a laser tracking instrument. The calibrating process includes calibrating the stereo target in the coordinate measuring system, acquiring the image of the sensor calibrating target, obtaining the conversion relation between the system measured target and the sensor calibrating target via coordination conversion, and other steps. The present invention can realize the in-situ measurement element calibration and overall system calibration.
Owner:TIANJIN UNIV
Device and method for measuring object mass center
InactiveCN101413840ASimple structureEasy to operateVehicle testingForce measurementMeasurement deviceRectangular coordinates
A device for measuring the mass center of an object consists of weighing sensors, a measuring table, a tribrach, supporting legs and a computer. Three height adjustable supporting legs are arranged below three feet of the tribrach, three weighting sensors are arranged on the three feet, the three weighting sensors are accurately positioned, and the position points are respectively A, B and C which take an equiangular triangle distribution; the measuring table is arranged on the three weighting sensors, and needs leveling during measurement, the table is marked with marking scales, and rectangular coordinates are established; and three protective supporting studs are also arranged between the tribrach and the measuring table. The three points of A, B and C bear different forces when an object to be measured is put on a horizontal table, the 2D coordinates of the mass center of the measured object are obtained by moment balance calculation, and the 3D coordinate of the mass center can be obtained only by measuring the 2D coordinates of the mass center after the measured object is turned by 90 degrees. The mass center can be obtained quickly and reliably by adopting the computer to acquire and process data.
Owner:CHERY AUTOMOBILE CO LTD
Three-Dimensional Tracking of a User Control Device in a Volume
ActiveUS20120162214A1Steroscopic systemsInput/output processes for data processingAccelerometerVisual perception
Tracking objects presented within a stereo three-dimensional (3D) scene. The user control device may include one or more visually indicated points for at least one tracking sensor to track. The user control device may also include other position determining devices, for example, an accelerometer and / or gyroscope. Precise 3D coordinates of the stylus may be determined based on location information from the tracking sensor(s) and additional information from the other position determining devices. A stereo 3D scene may be updated to reflect the determined coordinates
Owner:INFINITE Z
Augmented reality camera for use with 3D metrology equipment in forming 3D images from 2d camera images
Owner:FARO TECH INC
Articulated arm coordinate measurement machine having a 2d camera and method of obtaining 3D representations
ActiveUS20150229907A1Programme controlTelevision system detailsCoordinate-measuring machine3d measurement
A portable articulated arm coordinate measuring machine includes a noncontact 3D measuring device that has a projector that is manually movable by an operator from a first position to a second position. The projector is configured to emit a first pattern of light onto an object. The noncontact 3D measuring device further includes a scanner camera and an edge-detecting camera. The scanner camera is arranged to receive the first pattern of light reflected from the surface of the object. The edge-detecting camera arranged to receive light reflected from an edge feature of the object. The articulated arm coordinate measurement machine includes a processor configured to determine first 3D coordinates of an edge point of the edge feature based on electrical signals received from the scanner camera and the edge-detecting camera.
Owner:FARO TECH INC
Steel plant finished product storage and distribution automatic control method
ActiveCN105205629ARealize automatic loading and unloading operationsEnsure driving efficiencyLogisticsAutomatic controlControl system
The invention discloses a steel plant finished product storage and distribution automatic control method. A warehouse automatic control system comprises a bridge crane control system, a laser scanning imaging system and a warehouse operation process control system; the warehouse operation process control system obtains tasks from a transportation management system, and carries out optimization calculation and safety inspection according to warehouse stack situations and bridge crane states, and automatically generates related storage or delivery operation instructions, and sends the related control instructions to the corresponding bridge crane control system, and bridge cranes, carrying out full-process unmanned driving, performs storage or delivery operation; and the laser scanning imaging system can perform laser scanning on vehicles and cargo loaded on the vehicles, and performs processing and image calculation on scanning data and then obtains the 3D coordinates of the vehicles or the cargo loaded on the vehicles, and transmits the 3D coordinates to the process control system. With the steel plant finished product storage and distribution automatic control method adopted, in storage and delivery processes, monitoring personnel can monitor on-site operating process in real time through a monitoring terminal and a human-computer interaction interface, and emergency intervention can be made in special circumstances.
Owner:BAOSHAN IRON & STEEL CO LTD +1
Methods and Systems for Determining Coordinates of an Underwater Seismic Component in a Reference Frame
ActiveUS20090231953A1Improve long-term stabilitySeismology for water-covered areasEngineeringReference frame
A method comprising determining coordinates of a first point rigidly attached to a rigid body floating on the sea surface in a desired coordinate reference frame; measuring orientation parameters of the rigid floating body to determine 3D offset in the coordinate reference frame of the first point to any point on or rigidly attached to the body; applying a 3D coordinate shift from the first point to a second point rigidly attached to the body, thus determining coordinates of the second point in the desired reference frame; determining a distance from the second point to one or more devices that are components of a seismic acquisition spread, by comparing transmission times of a signal to recording times of transmitted signals and multiplying by a signal propagation rate; and determining relative positions of components of the spread to each other and to devices rigidly attached to the rigid body.
Owner:WESTERNGECO LLC
Indoor surveying apparatus and method
InactiveUS20150116691A1Optical rangefindersActive open surveying meansSurveyorCalibration coefficient
An indoor surveying apparatus comprises a light source, a color imaging system, a memory storing calibration coefficients, and a computing device for determining coordinates of 3D intersection points of the emitted light with objects using calibration coefficients and images captured by the imaging system. A method of using the surveying apparatus comprises the steps of capturing first image of a scene illuminated by the light source, capturing second image of the scene without the illumination by the light source, comparing the two images to identify locations of the 3D intersection points in the first image, using the set of calibration coefficients and the locations of the 3D intersection points in the first image to compute 3D coordinates of the intersection points, whereby surveying information collected by the apparatus comprises the coordinates of 3D intersection points and the color photographic images captured from known poses relative to the 3D intersection points.
Owner:PLANITAR INC
Method and System for Registration of Ultrasound and Physiological Models to X-ray Fluoroscopic Images
A method and system for registering ultrasound images and physiological models to x-ray fluoroscopy images is disclosed. A fluoroscopic image and an ultrasound image, such as a Transesophageal Echocardiography (TEE) image, are received. A 2D location of an ultrasound probe is detected in the fluoroscopic image. A 3D pose of the ultrasound probe is estimated based on the detected 2D location of the ultrasound probe in the fluoroscopic image. The ultrasound image is mapped to a 3D coordinate system of a fluoroscopic image acquisition device used to acquire the fluoroscopic image based on the estimated 3D pose of the ultrasound probe. The ultrasound image can then be projected into the fluoroscopic image using a projection matrix associated with the fluoroscopic image. A patient specific physiological model can be detected in the ultrasound image and projected into the fluoroscopic image.
Owner:SIEMENS HEALTHCARE GMBH
Coordinate measurement machine with distance meter and camera to determine dimensions within camera images
An articulated arm coordinate measurement machine (AACMM) that includes a noncontact 3D measurement device, position transducers, a camera, and a processor operable to project a spot of light to an object point, to measure first 3D coordinates of the object point based on readings of the noncontact 3D measurement device and the position transducers, to capture the spot of light with the camera in a camera image, and to attribute the first 3D coordinates to the spot of light in the camera image.
Owner:FARO TECH INC
Device and method using a spatial light modulator to find 3D coordinates of an object
A method for determining three-dimensional coordinates of an object point on a surface of an object, the method including steps of: providing a source, a projector, and a camera; in each of two instances: spatially modulating source light; sending a modulator pattern of light through the projector lens to form light spots; filtering the spots with a pinhole plate; propagating light from the light spots onto the object to produce a fringe pattern; imaging the object point with a camera lens onto an array point of the photosensitive array to obtain first and second electrical data values from the photosensitive array; and determining the three-dimensional coordinates of the first object point based at least in part on the first electrical data value, the second electrical data value, and a baseline length.
Owner:FARO TECH INC
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