199results about How to "Reduce motion errors" patented technology

Disclosed is a slide type mobile phone module for sliding a cover over a main body with keypads. The slide type mobile phone of the present invention features smooth sliding motion, a minimum number of components in the module, improved workability, and reduced cost of manufacture.

A method (10) for respiratory motion compensation by applying principle component analysis (PCA) on cardiac imaging samples obtained using 2D/3D registration of a pre-operative 3D segmentation of the coronary arteries.

When the placement of the elements (mass points, links having inertia, etc.) of a model expressing a robot 1 is determined according to a first geometric restrictive condition from an instantaneous desired motion of the robot 1 that has been created using a dynamic model, this placement is defined as a first placement, and the placement determined according to a second geometric restrictive condition from a corrected instantaneous desired motion that has been obtained by correcting the instantaneous desired motion is defined as a second placement. The corrected instantaneous desired motion is determined such that the moment component calculated from the difference between the first and the second placements approximates a predetermined value. The instantaneous desired motion is created using a dynamic model of the robot. Thus, the motion of the instantaneous desired gait of the robot that has been created using the dynamic model is properly corrected without using a dynamic model, leading to higher dynamic accuracy of an instantaneous desired gait including the corrected motion.

A cardiovascular flow system includes: a cardiovascular model system, a pump system in fluid connection with the cardiovascular model system, and an ECG simulator in communicative connection with the pump system. The ECG simulator system is adapted to create and transmit a simulated ECG signal. The ECG simulator system uses a signal received from the pump system to adjust the simulated ECG signal transmitted from the ECG simulator system. The cardiovascular flow system further includes an injection port adapted to be placed in fluid connection with an injector to inject at least one fluid into the system.

A sensor unit includes a motion sensor which detects a motion of an object, outputs a detection value, and is mounted on the object through an attachment, a filter which receives the detection value, passes a given frequency band, and is able to change a cutoff frequency of the frequency band, and a control unit which controls the cutoff frequency, wherein the control unit determines the cutoff frequency in accordance with hardness of the attachment.

An integrated flight instrument which provides unambiguous information regarding the motion of a hovering aircraft. The instrument accurately depicts motion in six degrees of freedom (roll, pitch, yaw, forward translation, lateral translation, and vertical translation), as well as aircraft power requirements and utilization.

A tomography apparatus includes a data acquirer acquiring a first image and a second image that are partial images, by using data acquired in a first angular section corresponding to a first time point and a second angular section corresponding to a second time and facing the first angular section, by performing a tomography scan on an object that is moving, and acquiring first information indicating a motion amount of the object by using the first image and the second image, and an image reconstructor reconstructing a target image indicating the object at a target time, based on the first information.

The invention relates to a bionic lower limb exoskeleton robot based on rope drive. The bionic lower limb exoskeleton robot comprises a backpack, a waist mechanism, thigh fixing devices, knee joint mechanisms, shank fixing devices and ankle joint mechanisms. A drive control system is placed in the backpack, the backpack is mounted on a waist support of the waist mechanism, a hip joint box is connected to the lower end of the waist support, the upper ends of the thigh fixing devices are connected with thigh connecting parts stretching out of the hip joint box, the lower ends of the thigh fixing devices are connected with the inner side of a knee joint box, the lower end of a swing plate stretching out of the lower end of the knee joint box is connected with the upper ends of the shank fixing devices, the lower ends of the shank fixing devices are connected with an ankle joint connecting plate on an ankle joint box, and ankle joint shafts stretching out of the inner side of the ankle joint box are connected with shoes. The motion error of the exoskeleton robot and the human body can be greatly reduced, the exoskeleton robot can be batter attached to the thighs, the bionic property is high, the size is small, the thickness is small, the mass is small, wearing is comfortable, operation is easy and convenient, and walking is stable.

A method of registering a plurality of functional images includes providing a plurality of functional images, providing a plurality of structural images, each one of which having a known positional relationship to at least one of said plurality of functional images, and finding a first mapping transformation between pairs of functional images based on the first mapping transformation and the positional transformation.

The image pickup apparatus (1) of the present invention includes: a shaking motion detecting section (101a and 101b) for detecting a shaking motion of the image pickup apparatus (1) and for outputting a shaking motion detection signal indicating the shaking motion of the image pickup apparatus (1); an image forming section (2, 2a, and 2b) for forming an optical image by focusing light incident to the image pickup apparatus (1); an image pickup section (5) for converting the optical image formed by the image forming section (2, 2a, and 2b) into electric video information; and a locus calculating section (91) for obtaining locus information indicating a locus of the shaking motion of the image pickup apparatus (1) based on at least the shaking motion detection signal output from the shaking motion detecting section (101a and 101b).

The present invention provides a torque-free robot arm, comprising: a base unit; and a first link in which one end is rotatably connected to the base unit to form a first joint as a rotary shaft horizontal to the ground and the center of gravity is separated from the first joint, wherein the first link includes one end arranged at the first joint, the other end arranged along the longitudinal direction of the first link, and a first counter balancer for compensating the gravity of the first link when the first link is rotated around the first joint.

The invention relates to a high-maneuvering spherical detection robot, which encloses a movement mechanism and a control device, etc., into a spherical shell and realizes the movement of the whole robot through the barycenter offset and the angular momentum conservation principle. The movement mechanism mainly comprises a support frame, a connection disk, a straight-line drive mechanism, a pivot steering drive mechanism, a telescoping mechanism, etc. The straight-line drive mechanism mainly comprises a drive motor, a gear transmission unit, an executive part, etc., which takes advantage of the barycenter offset to realize the straight-line movement of the spherical robot. The pivot steering drive mechanism comprises a drive motor and an executive mechanism, which takes advantage of the angular momentum conservation principle to realize the pivot steering movement of the spherical robot. The combination of straight-line and steering movements can realize the movement of the high-maneuvering spherical detection robot in any orientation. The telescoping mechanism comprises a drive motor, a screw mechanism, etc., which are used for realize the purpose that cameras at both ends protrude out of and retract into a sphere shell. The spherical robot not only provides a steady platform for installing cameras, but also realizes the pivot steering with flexible movement and strong maneuverability, and the spherical robot can be used for a plurality of tasks such as high toxic gas detection, field environment observation, and planetary exploration, etc.

A method of estimating and compensating for motion in image decoding are provided. The method involves determining a reference block of a reference frame indicated by a motion vector of a current block of a current frame being decoded, and generating a spatiotemporal estimation block of the current block by using the current frame and the reference frame, when some pixels of the reference block are outside the reference frame.

A system for positioning an object, having a fixed base, a support for the object, an actuator for applying a force to displace the support relative to the fixed base, a sensor for measuring the load force on the support, and a controller for processing the measured load force to control the position of the support and/or damp at least one resonance frequency of the system. A method of controlling the system is also provided.

A controller includes imaging means for capturing predetermined imaging targets and acceleration detecting means for detecting an acceleration applied to an input device. A game apparatus repeatedly calculates a target position which is related to images, included in a captured image captured by the imaging means, of the imaging targets and which is provided in the captured image, and then senses a predetermined motion (a motion in an upward direction) of the input device based on the target position calculated within a predetermined time period. Further, the game apparatus senses the predetermined motion of the input device based on the acceleration detected by the acceleration detecting means. Furthermore, the game apparatus executes a predetermined process (a process of causing a player character to perform a jump) when the predetermined motion has been sensed in at least either one of a first motion determining step and a second motion determining step.

A valve actuator assembly for an engine includes a movable engine valve and a movable spool valve. The valve actuator assembly also includes a driving channel interconnecting the spool valve and the engine valve and a first feedback channel and a second feedback channel interconnecting the spool valve and the engine valve. The valve actuator assembly includes an actuator operatively cooperating with the spool valve to position the spool valve to prevent and allow fluid flow in and out of the driving channel to position the engine valve. The valve actuator assembly further includes a first on/off valve and a second on/off valve in fluid communication with the first feedback channel and the second feedback channel to enable and disable the first feedback channel and the second feedback channel, whereby the first on/off valve and the second on/off valve control motion of the spool valve.

An object has a plurality of joints 51 to 55 which are connected to each other. A game apparatus calculates, when one of the plurality of joints having a fixed position with respect to the object is set as a reference joint, an orientation of an adjacent joint connected to the reference joint with respect to the reference joint (an orientation of an adjacent bone) based on input data. Then, the game apparatus moves a position of the adjacent joint connected to the reference joint based on the calculated orientation, and further moves the joints other than the reference joint and the adjacent joint in accordance with the adjacent joint being moved. Furthermore, the game apparatus causes a display device to display the object in which a shape thereof is determined based on positions of the aforementioned joints which have been moved.

An MRI apparatus includes an imaging signal acquisition unit, a motion signal acquisition unit, a motion amount determination unit, a motion correction unit and an image reconstruction unit. The imaging signal acquisition unit acquires MR signals as imaging signals. The motion signal acquisition unit repetitively acquires MR signals having PE amount less than that of the imaging signals as motion signals. The motion amount determination unit obtains a motion amount using the motion signals. The motion correction unit performs correction processing of the imaging signals in accordance with the motion amount. The image reconstruction unit reconstructs an image using the imaging signals after the correction processing.

The present invention proposes a method and apparatus for correcting a motion of panorama video captured by a plurality of cameras. The method of the present invention includes performing global motion estimation for estimating smooth motion trajectories from the panorama video, performing global motion correction for correcting a motion in each frame of the estimated smooth motion trajectories, performing local motion correction for correcting a motion of each of the plurality of cameras for the results in which the motions have been corrected, and performing warping on the results on which the local motion correction has been performed.

A motion editing system for a robot in which the motion of a robot edited is corrected as the movements performed by an actual robot are checked. An optional range of motion data is reproduced using an actual robot. At this time, an output from each sensor mounted to the actual robot, that is, the sensor information, is transmitted to the motion editing system. The robot's movements are evaluated on the motion editing system based on the sensor information acquired during motion reproduction. If, as a result of the robot's movements, a predetermined evaluation criterium is not met, the motion correction processing is carried out. If the predetermined evaluation criterium is met, a motion data file, in which is embedded the reference sensor information, is formulated.

The invention discloses a method for correcting kinematic errors in a microscopic vision system, which is applied to the microscopic vision system. The method comprises the following steps of: calibrating a camera through a calibration board, establishing a camera model, tracking angular points of the calibration board, generating a tracking trajectory and an ideal revolving trajectory of the angular points through a least square method, then performing error evaluation, establishing an error correcting model, and correcting the microscopic image by virtue of the error correct model. The method provided by the invention can be used for establishing the error correct model for the microscopic vision system only through one-time error evaluation; and the model can be used for any microscopic movement video collected by the system, reducing the movement errors of the system and improving the three-dimensional reconstruction precision, thus being high in practicability.

The invention discloses a high-spatial-discrimination long-range facial-form detecting device and method. The device comprises a scanning optical head and is characterized in that the scanning optical head comprises a small hole array plate, a beam splitter, a lens array and an array detector, the small hole array plate divides input parallel light beams into a plurality of parallel thin light beams, then the light beams enter the beam splitter, each thin light beam is input to the lens array in a transmission mode through the beam splitter, lens units in the lens array focus the corresponding thin light beams to the surface of an object to be tested respectively, and the light beams reflected by the surface of the object to be tested enter the array detector through the lens array and the beam splitter in sequence. The device is simple in structure and stable in performance, high-space-frequency sampling measuring can be carried out on the surface to be tested, measuring of facial-form errors of high frequency (larger than 1 line/mm) can be expanded, and at least 10 lines/mm can be achieved commonly.

Global motion estimation techniques play an important role in advanced video coding. Global motion estimation is useful for increasing the coding efficiency. However, it is of high complexity due to using a multiple parameters model and an iterative processing. The invention is based on a four-parameter linear global motion estimation model. From particular block motion vectors of a frame a set of global motion parameters is calculated in an iterative process. In each iteration loop, the motion vector outliers in symmetrical motion vector blocks are processed according to a given set of rules in order to keep the symmetrical structure during the iterative process.

A swimmer's resistance trainer having a base frame comprising two long slide rail sides and two short bench mount sides attached to each other to form a generally rectangular form, a bench rail attached to the two short sides using a vertical mount that extends between an end of the bench rail and each short side; a padded bench mounted onto a pivotal bench mount mounted onto a slide body that slideably attached to the bench rail; a padded head support attached to a headrest body that is slideably attached to the bench rail; at least one slideable padded armrest attached to an arm support post attached to a slideable arm rest body slideably attached to at least one of the long slide rails of the base frame, the at least one padded armrest comprises an arm resistance mechanism.

The invention discloses a metering-level 3D super-depth-of-field microscopy system and a detection method, and relates to the technical field of photoelectric nondestructive 3D detection. The microscopic system comprises an optical microscope, a spectral confocal sensor or a white light interference sensor, an xyz-axis electric displacement platform, a control module and a PC processor. The xyz-axis electric displacement platform comprises an xy-axis translation platform and a z-axis lifting module; the optical microscope is provided with an illumination light source and an image acquisition unit, the control module comprises an xyz electric control unit, a processor connected with the spectral confocal sensor or the white light interference sensor and a power supply module, and the imageacquisition unit is used for acquiring image information of a target detection area and transmitting the image information to the PC processor; by implementing the technical scheme, a sample can be observed in a nondestructive manner, photographing, 3D true color imaging and 3D accurate measurement can be performed on the microscopic state of the surface of a material in an ultra-large area, the measurement-level detection precision is realized, the details and the real color of the microscopic sample are kept, and the method has a good application prospect.