699results about How to "Quick correction" patented technology

A stereoscopic camera includes first and second image pickup units, having respectively first and second optical axes, for photographing an object to form two image frames. Two angle adjusters make angle adjustment of the optical axes. An object detector detects a human face as a principal object in the two image frames. An arithmetic processor obtains a shift amount of the face between two image frames, and determines an axial correction angle according to the shift amount for the angle adjustment in consideration of the face. A checker checks whether the angle adjustment should be made for both optical axes or for one thereof. A controller operates at least one of the two angle adjusters according to the axial correction angle and in response to information from the checker, for positioning the face equally between the two image frames optically by adjusting the first and/or second optical axis.

An optical unit with shake correcting function may include a movable module on which at least an optical element is mounted, a fixed body which supports the movable module, a shake detection sensor which detects a shake of the movable module, a drive mechanism for shake correction for swinging the movable module on the fixed body on the basis of a detection result of the shake detection sensor to correct the shake of the movable module, and a control section which controls the drive mechanism for shake correction on the basis of the detection result of the shake detection sensor. The shake detection sensor is a gyroscope mounted on the movable module and the control section controls the drive mechanism for shake correction so as to cancel the shake detected by the gyroscope.

The occurrence of a slippage of a robot in operation, following a desired gait, is determined, and the permissible range of a restriction object amount, such as a floor reaction force horizontal component or a floor reaction force moment vertical component to be applied to the robot, is variably set according to a slippage determination result. A provisional motion of a desired gait is determined using a dynamic model, and if the restriction object amount defined by the provisional motion deviates from the permissible range, then the motion of a desired gait is determined by correcting the provisional motion by changing the changing rate of the angular momentum of the robot from the provisional motion so as to limit the restriction object amount to the permissible range, while satisfying a dynamic balance condition.

A container crane includes a movable trolley and a load-carrying frame pendantly connected to the trolley and comprised of a spreader and a head block, for transfer of a container from or to a transport vehicle. Plural optical detectors are mounted on the trolley for identifying longitudinal and transversal edges of the head block or spreader and the transport vehicle. Operatively connected to the detectors is a processing device for determining a spatial position of the edges and calculating a position of longitudinal and transversal center lines of the head block or spreader and the transport vehicle and their spatial positions in relation to one another. In this way a possible offset of the center lines of the head block or spreader with regard to those of the transport vehicle in longitudinal and transversal directions as well as a rotation angle of the center lines can be determined, whereby a detected offset or rotation angle is compensated by displacing the spreader relative to the head block.

The invention relates to a fish eye lens calibration and fish eye image distortion correction method which belongs to the field of digital image processing and is very suitable for occasions of vision navigation, mobile monitoring and so on. Since imaging using a large wide angle will cause serious distortion, generally, imaging correction is needed to facilitate human eye observation. The method provided by the invention is mainly technically characterized by establishing a space coordinate system 1 and employing a least square curve-fitting method to calibrate a fish eye image to determine the center andthe radius of a fish eye lens, establishing a cylindrical projection model in a space coordinate system UV, and setting one-to-one relationships among an image point q2 of the fish eye image, a point q1 on object sphere and a point q projected on a cylinder, wherein q1 is in vertical projection relation with a bottom plane on which q2 is located and line q1q parallels to line oq2, thus achieving the purpose of fish eye image correction.

Methods and systems consistent with the present invention provide an improved software development tool which allows a developer to visually depict an existing data definition file containing data elements and relationships between the data elements by generating an XML structure diagram from the existing data definition file. Using methods and systems consistent with the present invention, the improved software development tool also allows the developer to generate a data definition file from an existing XML structure diagram.

The invention discloses a method for measuring and correcting distortion of a virtual reality displayer. The method includes the following steps that reticle imaging is carried out through an optical system to obtain a distortion grid image; a distortion coefficient of each grid is obtained through calculation according to the corresponding relationship between a vertex coordinate of the corresponding grid and a vertex coordinate of each distortion grid; non-distortion grids A are marked out on the distortion grid image, according to an optical path reversible principle, an object face of the optical system has distortion grids A' corresponding to the grids A, then vertex coordinates of the distortion grids A' are calculated by means of the distortion coefficients and the vertex coordinates of the grids A, and a coordinate look-up table is generated by means of the vertex coordinates of the distortion grids A'; an image to be projected is converted into a pre-distortion image by means of the coordinate look-up table, an image source is input, a pre-distortion image displayed by the image source is imaged, an imaging image is obtained, the imaging image is compared with the pre-distortion image, the image source is adjusted, and correcting of the image source is completed. The invention further discloses a device for measuring and correcting distortion of the virtual reality displayer.

In order to integrate repeater management with network management in a wireless telecommunication network, a database is added to the network management center (NMC), said database including the data on the network repeaters (R1, R2, R3), which include for each repeater (R1, R2, R3) at least the identifier of the base station (BTS) corresponding to the repeater concerned; a repeater plan is made for changing repeater parameters to correspond to the changed configuration of the base stations; and each repeater is sent an update message (B1, B2, B3) containing parameters for the reconfiguring of the repeater (R1, R2, R3) to correspond to the repeater plan. The invention also relates to a network management system in which the method of the invention can be applied. In addition, the invention relates to a repeater, which can be utilized in the method and system of the invention.

A fitting apparatus includes a robot arm having, at the forward end thereof, a gripper for holding a workpiece, a force detector for detecting a force and moment received by the workpiece held by the gripper, and a controller for controlling an operation of the robot arm. The controller includes a motion command generating unit for generating an operation command to fit two workpieces to each other, and an operation command correcting unit for correcting the operation command so as to correct the position of the gripper in a direction perpendicular to the fitting direction and the orientation of the gripper around an axis perpendicular to the fitting direction until the detected force and moment become less than or equal to a threshold value, based on either maximum values of the force and moment detected by the force detector while the two workpieces are in contact with each other or the force and moment detected by the force detector when the two workpieces first come into contact with each other.

In order to maintain a memory system's performance levels to its end-of-life, latency threshold level(s) are specified and associated with different memory system operating parameters. In one embodiment, the memory system monitors and gathers performance statistics in real time, and in accordance with specific memory transfer sizes. A current latency level can be dynamically calculated using the performance statistics and compared to previously established latency threshold levels. If the current latency level is greater than or equal to a specific latency threshold level, the memory system's configuration setting can be adjusted according to the operating parameters associated with the latency threshold level to offset the increased latency.

Various methods are disclosed for improving the readability of authored documents. The methods generally involve scanning a sentence to check for specific signs of potential writing problems, and applying associated sign-dependent decision logic to assess whether particular writing problems exist. The methods may be implemented in a computer program that makes editing suggestions to a user and/or makes edits automatically. The program may, in some cases, dim unnecessary language to reveal how the sentence will read with such language removed.

The invention relates to a method for controlling injection of a reductant into a NO_x containing exhaust gas stream from a combustion engine, where combustion of a known fuel takes place and where the HO_x is reduced by selective catalytic reduction, SCR, in the presence of a SCR catalyst, comprising establishing signals related to exhaust gas flow, HO_x concentration in the exhaust gas stream upstream of the catalyst, exhaust gas temperature upstream of the SCR catalyst, exhaust gas temperature downstream of the SCR catalyst and to input data for catalyst characteristics. From the signals an adjusted amount of the reductant is calculated by using a calculated amount of reductant and a value d(E*T)/dt, where E is the exhaust gas flow, T is the exhaust gas temperature upstream of the catalyst and t is time.

There is provided a substrate processing method and apparatus which can measure and monitor the thickness and/or properties of a film formed on a substrate as needed, and quickly correct a deviation in the process conditions, and which can therefore stably provide a product of constant quality. A substrate processing method for processing a substrate with a metal and an insulating material exposed on its surface in such a manner that the film thickness of the metal portion with the exposed surface of the metal as a reference plane is selectively or preferentially changed, including measuring a change in the film thickness and/or a film property of the metal portion during and/or immediately after processing, and monitoring the processing and adjusting the processing conditions based on the results of measurement.

The invention discloses a standard dot matrix light source and an image point correction method of a light-emitting diode (LED) display screen. The method comprises the following steps of: A, constructing the standard dot matrix light source, and calibrating the brightness and the chroma of the standard dot matrix light source; B, acquiring image data of the LED display screen, and the brightness and the chroma of the standard dot matrix light source; C, comparing the acquired brightness and chroma of the standard dot matrix light source with a stored value to obtain an error compensation matrix, and converting the image data of the LED display screen from a relative value into an absolute value; D, analyzing the converted image data of the LED display screen to generate a data correction coefficient matrix; and E, outputting the data correction coefficient matrix to an image point correction processor to perform image data correction processing so as to obtain corrected image data according to the data correction coefficient matrix, and finally outputting the corrected image data to an LED large screen display system. The standard dot matrix light source and the image point correction method can overcome adverse effects caused by working condition drifting of a camera to ensure that the LED display screen has better light-color consistence and white balance after performing the image point correction; and an additional light colorimeter is not needed, and a plurality of times of tests are not performed any more.

The invention relates to an infrared two-point non-uniform calibrating method based on a frame black body field diaphragm, belonging to the field of infrared thermal imaging. The method comprises the following steps of: arranging an automatically-telescopic frame black body field diaphragm on a diaphragm of an infrared thermal imager and performing two-point calibration under a frame to obtain a gain calibration factor and an offset calibration factor of a detection unit under the coverage of a frame black body; acquiring f frames of initially-calibrated images respectively on two scenes to obtain f-1 groups of inter-frame displacement parameters on every scene; and acquiring calibration parameters of f-1 groups of images with inter-frame displacement on an internal detection unit by adopting an algebraic method, and averaging the frames to obtain finial calibration matrixes G and 0 for calibrating the entire field of a subsequent infrared video. The method has the advantages of rapidness, self-adaption and system miniaturization, and can be applied to the fields of designing, production and manufacturing of refrigerating and non-refrigerating infrared focal plane detector thermalimaging systems, satellite infrared thermal imaging systems, infrared alarm systems, scientific researches and the like.

A permanent magnet fixed to a peripheral portion of a lens cell includes two magnets that are joined together so that the north poles face each other and the south poles are exposed. A first driving coil is arranged to face toward exits for lines of magnetic force from the joining surfaces of the north poles of the permanent magnet, and a second driving coil is arranged to face toward entrances for lines of magnetic force in the permanent magnet. The orientation of the lens is adjusted by adjusting the currents supplied to the first driving coil and second driving coil to drive the lens cell in an optical axis direction and horizontal direction in a state in which the lens cell is levitated relative to the cover.

A generally horseshoe shaped clear flexible resilient plastic wire-imbedded orthodontic appliance is made with a plastic portion with contours on the lingual side and on the labial side, wherein the contours snugly cover the patient's teeth so that the appliance remains in place. One or more flexible wires are imbedded within the lingual side of the plastic portion from the left molar area to the right molar area of the plastic portion, whereby the wires apply force on the lingual side of the patient's bite. The appliance is formed by obtaining a plaster cast of the patient's teeth and gums, removing plaster teeth from the plaster cast of the gums, reattaching the plaster teeth to the plaster cast of the gums to form a cast of proper bite alignment, attaching one or more wires to the labial surface of the aligned plaster teeth so the wires become imbedded within thermosetting plastic placed over the cast, putting the cast in a thermosetting plastic molding machine, inserting thermosetting plastic in the machine, and heating the thermosetting plastic around the cast of the proper bite alignment, so the wires are imbedded within the formed appliance after the thermosetting plastic cools. A series of appliances may be used to shift a patient's bite to proper bite orientation.

The invention provides equipment used for visual positioning and angle detection of solar cells before series welding. The equipment comprises a support rack, a Y-axis slide rail, an X-axis slide rail, a manipulator, a bracket bedplate, an imaging mechanism, a cell correction mechanism, and a feeding plate, wherein the Y-axis slide rail is fixed at the top end of the support rack; the X-axis slide rail is mounted on the Y-axis slide rail and can move along the Y-axis slide rail; the manipulator is mounted on the X-axis slide rail and can move along the X-axis slide rail; the bracket bedplate is mounted below the Y-axis slide rail; the imaging mechanism is mounted on the bracket bedplate; the cell correction mechanism is mounted at the right side of the imaging mechanism; and the feeding plate is mounted at the right side of the cell correction mechanism. According to the equipment, the position and angle correction of the solar cells can be realized automatically in a moving process, so that the production efficiency and the production line flexibility are improved. The invention further provides a method for used for visual positioning and angle detection of the solar cells before series welding. According to the method adopting visual correction, the correction process of solar cell workpieces can be performed fast and accurately, and the series welding efficiency and precision of the solar cells are improved.

An automatic steering system for an agricultural vehicle comprises a steering actuator operative to steer the vehicle in response to a steering signal, and a steering wheel operative to generate and send a manual steering signal to the steering actuator when the steering wheel is turned. A microprocessor is operative to generate and send an automatic steering signal to the steering actuator. A global positioning sensor is operative to determine a sensed location of the vehicle and send a corresponding location signal to the microprocessor, and a gyroscope is operative to determine lateral movement of the vehicle and send a corresponding movement signal to the microprocessor. The microprocessor receives the location signal and the movement signal and compares the sensed location and lateral movement with a desired vehicle path and generates the automatic steering signal. The steering actuator steers the vehicle in response to one of the steering signals.

Systems, methods, and computer storage media for handling failures in generating structured queries from natural language queries. One of the methods includes obtaining, through a natural language front end, a natural language query from a user; converting the natural language query into structured operations to be performed on structured application programming interfaces (APIs) of a knowledge base, comprising: parsing the natural language query, analyzing the parsed query to determine dependencies, performing lexical resolution, forming a concept tree based on the dependencies and lexical resolution; analyzing the concept tree to generate a hypergraph, generate virtual query based on the hypergraph, and processing the virtual query to generate one or more structured operations; performing the one or more structured operations on the structured APIs of the knowledge base; and returning search results matching the natural language query to the user.

An electronic pasteboard allows users to organize multiple documents in a single visual interface. After placing documents on the pasteboard, users can drag and drop portions (paragraphs, words, figures, images, graphs) from one document to another document, or create a new document combining elements from several source documents. Users can create tables or an index for grouping together individual documents, or elements of documents. Each original source document can be saved individually, with tags added related to the user defined groupings. The entire pasteboard with content from all the source documents can be saved or printed out. Likewise, selected groupings on the pasteboard can also be saved or printed out.

The invention discloses a self-adaptive and rapid correcting method for a fish-eye lens. The self-adaptive and rapid correcting method for the fish-eye lens comprises the steps that an equidistant projection model is constructed and straight lines at different positions are extracted to obtain a point set; camera parameters are initialized and noise filtering is carried out on the point set; the image plane of the straight lines is further optimized according to the rule that the straight line must be projected as straight lines; the optimized image is projected to six faces of a largest inscribed cube of a unit watching ball by unfolding the cube, and the projection is output; secondary correction is carried out on primary calibration of the same equipment, and if the output projection result has deviation, recalibration is carried out. Through the self-adaptive and rapid correcting method for the fish-eye lens, the fish-eye lens can be rapidly corrected, a large amount of calculation is avoided, the result is accurate, and operation is convenient and rapid.