475 results about "Motion measurement" patented technology

A movement measuring device determines the speed of the body's specific movement on the basis of the maximum value of the acceleration sensed by an acceleration sensing unit attached to the body, when the body has made a specific movement. For example, when the player wears the device on his arm and makes a punching motion, the punching speed is found from the maximum acceleration resulting from the punching action. Furthermore, a game device obtains data indicating the magnitude of a specific movement of the body, on the basis of the acceleration sensed by an acceleration sensing unit, and then decides the outcome of the game on the basis of the strength and weakness of the punch. This enables the user to easily play a fighting sport game involving the player's actual punching motions anywhere.

A micro integrated Global Positioning System (GPS) / Inertial Measurement Unit (IMU) System, which is adapted to apply to output signals proportional to rotation and translational motion of a carrier and GPS measurements of the carrier, respectively from angular rate sensors, acceleration sensors, and GPS chipset, is employed with MEMS angular rate and acceleration sensors and GPS chipset. Compared with a conventional IMU / GPS system, the system of the present invention uses an integrated processing scheme by means of digital closed loop control of the dither driver signals for MEMS angular rate sensors, a feedforward open-loop signal processing scheme of the IMU, digital temperature control and compensation, the earth's magnetic field-based heading damping, robust error estimator, and compact sensor and circuit architecture and dramatically shrinks the size of mechanical and electronic hardware and power consumption, meanwhile, obtains highly accurate motion measurements.

A processing method for motion measurement, which is adapted to apply to output signals proportional to rotation and translational motion of a carrier, respectively from rate sensors and acceleration sensors, is more suitable for emerging MEMS rate and acceleration sensors. Compared with a conventional IMU, the processing method utilizes a feedforward open-loop signal processing scheme to obtain highly accurate motion measurements by means of signal digitizing, temperature control and compensation, sensor error and misalignment calibrations, attitude updating, and damping control loops, and dramatically shrinks the size of mechanical and electronic hardware and power consumption, meanwhile, obtains highly accurate motion measurements.

A technician-free strategy enables real-time guidance of bronchoscopy. The approach uses measurements of the bronchoscope's movement to predict its position in 3D virtual space. To achieve this, a bronchoscope model, defining the device's shape in the airway tree to a given point p, provides an insertion depth to p. In real time, the invention compares an observed bronchoscope insertion depth and roll angle, measured by an optical sensor, to precalculated insertion depths along a predefined route in the virtual airway tree to predict a bronchoscope's location and orientation.

The invention discloses a human motion capture three dimensional playback system and a method thereof. The system is characterized in that the system comprises a human motion capture subsystem and a human motion playback subsystem; the human motion capture subsystem is composed of a microsensor motion measuring module and a motion parameter estimating module; the microsensor motion measuring module measures corresponding body motion data by a plurality of microsensor units attached to each limbs and trunk of human body respectively, and the motion parameter estimating module fuses microsensordata of different types of each microsensor unit and deduces the mass motion of human body; the human motion playback subsystem is used for receiving human mass motion parameters deduced by the humanmotion capture subsystem. The invention has the advantages of simple structure, high precision, low cost, small volume, low power consumption and convenient usage, has the characteristics of portability and real-time, has wide application in numerous fields and has comparatively strong practical value and application prospect.

According to one aspect of the invention, a force measurement system includes a force measurement assembly, a motion base configured to displace the force measurement assembly, and an inertial compensation system configured to determine the inertial forces and / or moments resulting from the displacement of the force measurement assembly by the motion base. According to another aspect of the invention, a method for accurately determining the forces and / or moments applied to a surface of a force measurement device by a subject disposed thereon is disclosed, which includes the step of determining, by using an inertial compensation system, the inertial forces and / or moments resulting from the displacement of a force measurement assembly by a motion base. According to still another aspect of the invention, a force and / or motion measurement system having inertial compensation includes a motion acquisition system having a plurality of motion sensing devices configured to capture a subject's movement.

A measuring device for providing data corresponding to a geometric configuration in space, in the form of a flexible, compliant, measurement member capable of bending in at least one degree of freedom and extending along a medial axis or plane. The member has spaced flexure sensors distributed at known locations on the member and separated by known sensor spacing intervals to provide flexure signals indicating the local state of flexure present at the locations. The member comprises a multiplicity of formed, i.e. shaped, fibers, these fibers including sensing fibers having sensing portions which provide the flexure sensors, the sensing portions of different fibers being located at differing distances along the member so as to be located at the sensor spacing intervals, the formed fibers being in mutually supporting relationship, as by continuous or repeated contact with each other. Such fibers may constitute most or all of the member.

An optically-based rigid-body 6-DOF motion tracking system optimized for prospective (real-time) motion correction in Magnetic Resonance Imaging (MRI) applications using a single camera with an on-board image processor, an IR illuminator and optical fiducial targets affixed to a patient. An angle extraction algorithm operated by the on-board image processor utilizes successive approximation to solve the 3-point pose problem for angles close to the origin to achieve convergence to sub-microradian levels. A motion alarm is enabled by a monitor and GUI application in communication with the motion tracking system. A motion correction is enabled for MR scan images taken while operating the motion tracking system wherein an MRI controller is in communication with the motion tracking system.

A system and method for inputting motion measurement data into a computationally based device are provided. In a first version three-axis accelerometer determines components of an inertial force vector with respect to an orthogonal coordinate system. The accelerometer includes a sensor die made of a semiconductor substrate having a frame element, a proof mass element, and an elastic element mechanically coupling the frame and the proof mass. The accelerometer also has three or more stress-sensitive IC components integrated into the elastic element adjacent to the frame element for electrical connectivity without metal conductor traversal of the elastic element.

An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a control signal in response to a measurement of inter-picture motion between a current picture and a first reference picture. The second circuit may be configured to select the first reference picture or a second reference picture as a better reference picture for motion estimation in response to the control signal.

A system and method for inputting motion measurement data into a computationally based device are provided. In a first version three-axis accelerometer determines components of an inertial force vector with respect to an orthogonal coordinate system. The accelerometer includes a sensor die made of a semiconductor substrate having a frame element, a proof mass element, and an elastic element mechanically coupling the frame and the proof mass. The accelerometer also has three or more stress-sensitive IC components integrated into the elastic element adjacent to the frame element for electrical connectivity without metal conductor traversal of the elastic element.

The present invention relates to a portable device (10) for determining a heart rate of a person (20), comprising a heart rate measurement unit, a motion measurement unit for measuring the motion of a body part (12), and a processing unit. The processing unit is adapted to measure a signal quality of the heart rate signal and accordingly switch between two calculation modes: If the signal quality is above a predefined threshold, the heart rate is calculated based on the heart rate signal. If the signal quality is so poor that a reliable calculation of the heart rate is technically not possible anymore based on the heart rate signal, the processing unit switches to its second calculation mode, in which the heart rate is estimated based on the motion signal by estimating a heart rate constant, which depends on the frequency of the motion signal, and defining an exponential development of the heart rate, starting at the last reliably measured heart rate and finishing at the estimated heart rate constant.

A computer (16) for capturing a colored moving image photographed by photographing means (14, 15) has an extraction means for extracting images having necessary swing postures as check-point images from a large number of still images constituting the color moving image; a means for obtaining a coordinate of a position of each of attention-focused points, which operate, in each of the check-point images, while a golfer (11) is swinging; a means for diagnosing a golfer's swing form by setting a plurality of diagnosis items for each trajectory pattern obtained by a ball motion measuring apparatus (20) to classify behavior of a golf ball and by comparing numerical data generated from data of the coordinate of the position of each of the attention-focused points with a judgement value set in each of a plurality of diagnosis items; and a means for outputting an advice drill corresponding to a result of a diagnosis.

A system for evaluating the integrity of a bonded joint in an article includes a laser configured in a laser shock processing arrangement to perform a laser shock processing treatment on the article. A beam delivery system employs an articulated arm assembly to communicate the radiant energy emitted by the laser to a process head proximate the article. The laser shock processing treatment causes the formation of shockwaves that propagate through the article, inducing internal stress wave activity that characteristically interacts with the bonded joint. A sensor detects a stress wave signature emanating from the article, which is indicative of the integrity of the bond. A detector such as a non-contact electromagnetic acoustic transducer provides a measure of the stress wave signature in the form of surface motion measurements.

The invention relates to a human motion capture device which comprises motion measuring units, a motion parameter estimation unit, an initialization unit, a display estimation unit and an overall integration unit; the motion measuring units are attached on all the limbs of a human body and are used for measuring the motion data and the environmental data of all the limbs; the motion parameter estimation unit deducts the motion parameters and the environmental parameters of all the limbs, and when in deduction, a self-adaptive anti-interference three-dimensional angle estimation method is adopted to deduct the three-dimensional angle values of all the limbs; the initialization unit is used for receiving and integrating the motion parameters and the environmental parameters of all the limbs, and deducting the initial operation parameters of the human body motion capture device; the displacement estimation unit is used for receiving and integrating the motion parameters and the environmental parameters of all the limbs as well as the initial operation parameters of the human body motion capture device, and deducing the displacement of the human body relative to the ground; and the parameters and the displacement of the human body relative to the ground are finally integrated together by the overall integration unit, so that the position and the gesture of the overall motion of the human body are worked out and output.

A system for monitoring a joint of a patient includes multiple sensors to be disposed near a joint and to measure or observe actions or physical quantities associated with the joint; and at least one communications module coupled to the sensors to receive data from the sensors and to transmit sensor information to an external device. The system also includes a patient device and clinician device which can be used to, for example, monitor and display information obtained from the sensors, determine range of motion measurements from the sensor data, show progress in physical therapy, take a photograph or video of the site on the patient, obtain a pain score, and include friends for providing encouragement during physical therapy.

An external focused ultrasonic beam, non-destructive, open-air, inspection method of sheet metal spot and seam weldments using a probe in combination with motion measurement of the probe over the weldments during inspection without immersion of the material. Reflected ultrasonic waves are received and signals produced and processed or displayed as A-scan, B-scan and C-scan images that are easily recognized. An A-Scan is based on the time-of-flight difference between the outer surface, the weldment and inner and opposite surfaces of the component. B-scan and C-scan indicate the degree of weld fusion and provide data relative to fused thickness and defects sheet metal or welds. A special purpose scanner that enables ultrasonic examination welds. Scanner is pencil like ultrasonic probe with bearing face and position sensing device disposed adjacent a weld position. Scanner collects data for method to determine various characteristics of welded items.

The present invention provides a technique for sensing and reproducing various feels, which a person gets discretely over a period of time, by time sequential sensing.A tactile processor includes: a movement measuring section for determining a status of contact between a person and an object; a physical measuring section for measuring a physical property value of the object; and a physical-psychological transformation section for generating a tactile feature quantity based on the physical property value that has been measured by the physical measuring section and on the weight of the physical property of an arbitrary object. The weight is variable according a status of contact between the person and the arbitrary object and is calculated based on not only a physical property value representing the status of contact between the person and the arbitrary object but also a tactile feature quantity representing a feel that the person gets when touching the arbitrary object.

In one example aspect, device is provided that is useful to allow delivery, storage, and pick up of goods with a drone comprising at least one of: a receptacle; a computing system; a camera; a multiplicity of physical sensors, wherein the multiplicity of physical sensors measure a physical measurement and an environmental measurement, said measurements including: a temperature measurement, a weight measurement, a humidity measurement, one of any other environmental measure measurement, and a motion measurement; a multiplicity of chemical sensors, wherein the multiplicity of chemical sensors detect the presence of a specified chemical; and wherein a set of inputs from the camera, multiplicity of physical sensors and the multiplicity of chemical sensors creates a record of a: a picture, a multiplicity of pictures, a video, a multiplicity of videos, and a data embodying readings from at least a sensor; and a device communicatively coupled to one or more other entities through at least one of a local network and an external network: to perform at least one of the actions of: transmit a set of data to the one or more other entities, receive the set of data from the one or more other entities, transmit a set of commands to the one or more other entities, and receive a set of commands from the one or more other entities, and wherein the one or more entities comprises at least one of a server, an owner device, a user device, a device coupled to an unmanned pickup / delivery agent.

Motion-converter apparatus for converting bidirectional rotary movements to unidirectional rotary movements includes: an input shaft for inputting the bidirectional rotary movements; an output shaft for outputting the unidirectional rotary movements, the output shaft having a longitudinal axis perpendicular to the longitudinal axis of the input shaft; a drive bevel gear coaxial with, and driven bidirectionally by, the input shaft; a pair of driven bevel gears coaxial with the output shaft and meshing with the drive bevel gear on opposite sides of the axis of the drive bevel gear so as to be driven bidirectionally thereby but in opposite directions with respect to the output shaft; and a pair of one-way clutches coupling the driven bevel gears to the output shaft such that both one-way clutches are effective to drive the output shaft only in one direction. Various applications of such apparatus are also described, including wave and tide motors, wind turbines and bidirectional-movement measuring devices.

A system for monitoring a patient includes a sensor unit having a housing and sensors disposed in or around the housing; and a base having a shell and configured and arranged to be adhesively attached to skin of the patient. The sensors can be used to monitor physical therapy and rehabilitation of the patient. The sensor unit can provide information to a patient or clinician device to facilitate the monitoring. The sensor data can be used to determine measurements such as tilt angle of the sensor unit and range of motion measurements (such as extension, flexion, or forces associated with movement) of the anatomical region to which the sensor unit is attached. The sensor data can also be used for automated identification or classification of exercises performed by the patient.

An embodiment of the present invention includes: a tracking object image extracting section that extracts a tracking object image, which represents a tracking object, from an image captured by a monocular camera; a two-dimensional displacement calculating section that calculates, as actual movement amounts, amounts of inter-frame movement of the tracking object image; a two-dimensional plane projecting section that generates on a two-dimensional plane a projected image of a three-dimensional model, which represents in three dimensions a capturing object captured by the monocular camera; a small motion generating section that calculates, as estimated movement amounts, amounts of inter-frame movement of the projected image; and a three-dimensional displacement estimating section that estimates amounts of three-dimensional motion of the tracking object on the basis of the actual movement amounts and the estimated movement amounts.

An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a control signal in response to a measurement of inter-picture motion between a current picture and a first reference picture. The second circuit may be configured to select the first reference picture or a second reference picture as a better reference picture for motion estimation in response to the control signal.

The first buffer portion provides a first base portion and a first outer wall provided on a peripheral edge of the first base portion. The second buffer portion provides a second base portion which provides a mounting surface outside to a measurement target, and a second outer wall provided on a peripheral edge of the second base portion. The buffer body provides the first base portion and a top surface of the second outer wall abutting against each other. A housing portion for the sensor portion is provided inside. A holding portion which holds the sensor portion is provided at least at a part of the top surface of at least one of the first buffer portion and the second buffer portion. The sensor portion is held by the holding portion.

An external focused ultrasonic beam, non-destructive, open-air, inspection method of sheet metal spot and seam weldments using a probe in combination with motion measurement of the probe over the weldments during inspection without immersion of the material. Reflected ultrasonic waves are received and signals produced and processed or displayed as A-scan, B-scan and C-scan images that are easily recognized. An A-Scan is based on the time-of-flight difference between the outer surface, the weldment and inner and opposite surfaces of the component. B-scan and C-scan indicate the degree of weld fusion and provide data relative to fused thickness and defects sheet metal or welds. A special purpose scanner that enables ultrasonic examination welds. Scanner is pencil like ultrasonic probe with bearing face and position sensing device disposed adjacent a weld position. Scanner collects data for method to determine various characteristics of welded items.

A casing inspection device with magnets and flux sensors. Measurements of axial motion of the device are used to get better definition of the axial extent of casing defects. A contact device may be used for motion measurement. The output of the contact device may be used to control the acquisition of flux measurements direction.

The error of a sensor in motion capture system is corrected. An acceleration sensor determines the direction of gravity (G1) in a still initial state. The direction G1 will never change always if a drift dose not occur. However, actually if an object to which an acceleration sensor is attached moves along a coordinate axis, the direction gradually changes due to a drift with time. According to the invention, after a given time has passed, the acceleration sensor is stopped to determine the direction of gravity. Referring to the data on this determination, the true direction of gravity to be judged is compared with the direction of gravity G1 influenced by the drift. The difference between them is assumed to be an error due to a drift, and the error is subtracted from the determined value to correct the error of the measurement value. Similarly to the direction of gravity, assuming that there is an error in any direction in the coordinate system, the errors are corrected, and more accurate motion determination is possible.

The present invention provides a technique for sensing and reproducing various feels, which a person gets discretely over a period of time, by time sequential sensing.A tactile processor includes: a movement measuring section for determining a status of contact between a person and an object; a physical measuring section for measuring a physical property value of the object; and a physical-psychological transformation section for generating a tactile feature quantity based on the physical property value that has been measured by the physical measuring section and on the weight of the physical property of an arbitrary object. The weight is variable according a status of contact between the person and the arbitrary object and is calculated based on not only a physical property value representing the status of contact between the person and the arbitrary object but also a tactile feature quantity representing a feel that the person gets when touching the arbitrary object.