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494 results about "Image tracking" patented technology
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Dynamic target tracking and positioning method of unmanned plane based on vision
The invention discloses a dynamic target tracking and positioning method of an unmanned plane based on vision, and belongs to the navigation field of the unmanned planes. The dynamic target tracking and positioning method comprises the following steps of: carrying out video processing, dynamic target detecting and image tracking; carrying out cloud deck servo control; establishing a corresponding relationship between a target in the image and a target in the real environment, and further measuring the distance between a camera and a dynamic target to complete precise positioning of the dynamic target; and enabling an unmanned plane control system to fly by automatically tracking the dynamic target on the ground. The dynamic target tracking and positioning method of the unmanned plane based on the vision can automatically realize the movement target detecting, image tracking and optical axis automatic deflecting without the full participation of the people, so that the dynamic target is always displayed at the center of an image-forming plane; and the distance between the unmanned plane and the dynamic target is measured in real time according to an established model on the basis of obtaining the height information of the unmanned plane. Therefore, the positioning of the dynamic target is realized; closed-loop control is formed by using the positioned dynamic target as a feedback signal, so that the tracking flight of the unmanned plane is guided.
Owner:BEIHANG UNIV
Imaging for use with moving organs
InactiveUS20080221442A1Reduce imaged motionWeaken the visual effectUltrasonic/sonic/infrasonic diagnosticsMedical imagingImage trackingBody system
Apparatus is described for imaging a portion of a body of a subject that moves as a result of cyclic activity of a body system of the subject and that also undergoes additional motion. An imaging device acquires a plurality of image frames of the portion. A sensor senses a phase of the cyclic activity of the body system. A control unit generates a stabilized set of image frames of the portion by identifying a given phase of the cyclic activity, and outputting a set of the image frames corresponding to image frames of the portion acquired during the given phase, and by image tracking at least the set of image frames to reduce imaged motion of the portion associated with the additional motion. A display displays the stabilized set of image frames of the portion. Other embodiments are also described.
Owner:SYNC RX
Head Mounted Display
A head mounted display is provided. The head mounted display includes a head attachment portion and a viewing module coupled to the head attachment portion. The viewing module includes an inner portion having a view port into a screen configuring for rendering image content, and an exterior housing. Further included are a plurality illuminating elements integrated with the exterior housing of the viewing module. The plurality of illumination elements defined for image tracking of the head mounted display. Illumination logic is provided for controlling the plurality of illumination elements to be active or inactive during use of the head mounted display.
Owner:SONY COMPUTER ENTERTAINMENT INC
System and method for tracking a subject
An image tracking system for generating digitized image frames of a moving object using an image capture device and a position control device. The image capture device and determining a location value for an object image within each of the digitized image frames. The position control device is coupled to the image capture device to receive the location value of the object image and generates a plurality of control signals which are sent to the position manipulating device. The position control device also uses the plurality of control signals and generates a plurality of rotational movements which position the image capture device, such that the location value of the object image remains within a center region of each of the digitized image frames and such that rotation along different rotation axis occurs independently.
Owner:VERGHESE GILBERT
System and method for noise cancellation with motion tracking capability
InactiveUS20080304677A1Improve the sound effectGood effectEar treatmentNoise generationEngineeringLoudspeaker
A system and method for noise cancellation is disclosed herein generally having at least one microphone, a processor, and a speaker array. The processor may contain an adaptive filtering feature, to separate desirable sound from undesirable sound. The undesirable sound may be suppressed by the processor by creating a canceling waveform and transmitting the canceling waveform to the user's head via a speaker array. The desirable sound may be enhanced by increasing the amplitude of the waveform and transmitting the amplified waveform to the user's head via a speaker array. The sound transmitted to the user's head by the system may be localized using an image tracking subsystem and speaker array. The image tracking system may track the actual visible image or alternatively a heat (e.g. infrared) image of the user's head.
Owner:SOUNDMED LLC
System and method for visual motion based object segmentation and tracking
The PMP Growth algorithm described herein provides for image tracking, segmentation and processing in environments where the camera system moves around a great deal, i.e., causing image jumps from one image frame to the next. It also is operative in systems where the objects themselves are making quick movements that alter their path. Attributes of the PMP Growth algorithm allow tracking systems using the PMP Growth algorithm to follow objects a long distance in a scene. This detection and tracking method is designed to track objects within a sequence of video image frames, and includes detecting keypoints in a current image frame of the video image frames, assigning local appearance features to the detected keypoints, establishing Point-Motion-Pairs between two successive image frames of the video image frames, and accumulating additional matches between image locations to form complete coherent motion object models of the objects being tracked. The segmentation aspect permits for the discovery of different coherently moving regions in the images.
Owner:XEROX CORP
Method and apparatus for tracking points in an ultrasound image
ActiveUS20080221446A1Ultrasonic/sonic/infrasonic diagnosticsDiagnostic recording/measuringSonificationDisplay device
An ultrasound system comprises a position sensing module, an imaging tracking module, a display and a user interface. The position sensing module detects spatial information associated with a volume of data. The display displays first and second images based on the volume of data. The first and second images comprise first and second portions of the volume of data, and the first and second portions are at least partially different with respect to each other. The user interface selects a first image tracking point on the first image. The first image tracking point is indicated on the first image with a first indicator. The image tracking module tracks the first image tracking point within the volume of data. The image tracking module indicates on the display a spatial relationship of the first image tracking point to the second image.
Owner:GENERAL ELECTRIC CO
Image tracking and substitution system and methodology for audio-visual presentations
InactiveUS20050151743A1Television system detailsElectronic editing digitised analogue information signalsVisual presentationImage tracking
The present invention relates to a system and method for processing a video input signal providing for tracking a selected portion in a predefined audiovisual presentation and integrating selected user images into the selected portion of the predefined audiovisual presentation.
Owner:ALTO DYNAMICS LLC
Providing virtual inserts using image tracking with camera and position sensors
ActiveUS8077981B2Image enhancementTelevision system detailsTemplate matchingComputer graphics (images)
Camera registration and / or sensor data is updated during a live event by determining a difference between an estimated position of an object in an image and an actual position of the object in the image. The estimated position of the object in the image can be based on an estimated position of the object in the live event, e.g., based on GPS or other location data. This position is transformed to the image space using current camera registration and / or sensor data. The actual position of the object in the image can be determined by template matching which accounts for an orientation of the object, a shape of the object, an estimated size of the representation of the object in the image, and the estimated position of the object in the image. The updated camera registration / sensor data can be used in detecting an object in a subsequent image.
Owner:SPORTSMEDIA TECH CORP
Active vision human face tracking method and tracking system of robot
ActiveCN102411368AThere will be no loss of targetOvercome limitationsCharacter and pattern recognitionPosition/course control in two dimensionsFace detectionPattern perception
The invention discloses an active vision human face tracking method and tracking system of a robot; the tracking method comprises the steps that: (1) the mobile robot acquires an environment information image and detects a human face target through an active camera; and (2) after the human face target is detected, the robot tracks the human face target, and maintains the human face target in the center of the image through the active camera and the movement of the robot. The tracking system comprises the active camera, an image tracking module, a movement tracking module, a hierarchy buffer module and a state feedback module. The invention realizes the automatic human face detection and tracking by the robot, overcomes the limitation of a smaller image vision angle and establishes a perception-movement ring of the mobile robot based on active vision by combining the image tracking with the movement tracking, so that the movement scope for human face tracking is expanded to 360 degrees, the all-sided expansion of the tracking scope is ensured. A two-layer buffer region ensures the tracking continuity, so that the human face target is always maintained in the center of the image.
Owner:PEKING UNIV
Method and apparatus for tracking points in an ultrasound image
ActiveUS8303502B2Ultrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsSonificationDisplay device
An ultrasound system comprises a position sensing module, an imaging tracking module, a display and a user interface. The position sensing module detects spatial information associated with a volume of data. The display displays first and second images based on the volume of data. The first and second images comprise first and second portions of the volume of data, and the first and second portions are at least partially different with respect to each other. The user interface selects a first image tracking point on the first image. The first image tracking point is indicated on the first image with a first indicator. The image tracking module tracks the first image tracking point within the volume of data. The image tracking module indicates on the display a spatial relationship of the first image tracking point to the second image.
Owner:GENERAL ELECTRIC CO
Vehicle-mounted intelligent supervising and early warning device for running status of track traffic vehicle
InactiveCN101274636AImprove the level of intelligence and informatizationPowerfulRailway auxillary equipmentRailway profile gaugesInformatizationInformation processing
The invention relates to an intelligent vehicle-bone type running state monitoring and early warning device used for rail transporting vehicles. The device comprises at least a group of sensing component units used for obtaining the vehicle operation state, including the operation state of wheels on rails, the state of the deformation of a vehicle chassis component and a railway and abnormal road conditions or the state of vehicle-bone devices; an intelligent sensing information processing unit based on a micro processor and used for processing the sensing signals of the vehicle state, including signal processing, data-collecting processing, image edge detection and extraction, image tracking, the processing and the intelligent analyzing of mechanical vibration / noise information, data identification and extraction, the learning of vehicle states and relevant background information, the forming of monitoring and early warning results and information recording and storing; input / output units used for the output, the operation, the control and the data communication of the monitoring and early warning results; and a power supply unit. The intelligent vehicle-bone type running state monitoring and early warning device has the advantages of multiple functions, high intelligentization and informatization level, high cost performance, high creditability and convenient installation, etc., is easy to be expanded, and can be applied under all weather conditions.
Owner:林贵生
Image tracking and substitution system and methodology for audio-visual presentations
InactiveUS7827488B2Television system detailsElectronic editing digitised analogue information signalsVisual presentationImage tracing
The present invention relates to a system and method for processing a video input signal providing for tracking a selected portion in a predefined audiovisual presentation and integrating selected user images into the selected portion of the predefined audiovisual presentation.
Owner:ALTO DYNAMICS LLC
Digital camera with image tracking system
InactiveUS7391886B1Overcomes shortcomingEnhanced advantageTelevision system detailsCharacter and pattern recognitionDigital imageVisual perception
A digital camera system includes an input member for selecting at least one of an individual profile and a group profile and a memory operatively coupled to the input member. The memory includes digital images captured by the digital camera system and a profile information database. The profile information database includes at least one of an individual profile having an individual profile marker and a group profile having a plurality of individual profile markers. A tracking system, operatively coupled to the memory, selectively scans the captured images for images including at least one individual profile marker. A notification system, operatively coupled to the tracking system, provides one of a visual and an audible alarm indicating that less than a pre-selected number of individual profile markers are present in the captured images.
Owner:IBM CORP
Image detection method and device
ActiveCN101196996AAccurately determineDetection of traffic movementCharacter and pattern recognitionImage detectionSelf adaptive
The present invention discloses an image detection method and a device thereof, which is used to solve the problems that the prior art is slow in automobile detection speed and poor in effect. The image detection method provided by the present invention comprises that: a weak feature library is obtained in advance through an edge direction histogram in a set rectangular region in an image, and a rapid automobile classifier based on a hierarchical self-adaptive enhanced classifier and the edge direction histogram is arranged by utilizing the weak feature library; through the edge direction and edge intensity of an input image, the edge direction histogram in the set rectangular region on the input image is calculated; according to the edge direction histogram in the set rectangular region on the input image, an automobile position in the input image is determined by adopting the rapid automobile classifier. The present invention also discloses an image tracking method and a device thereof. The present invention is used to determine automobile positions in images rapidly and accurately.
Owner:中星智能系统技术有限公司
Unfolding method for restoration of fisheye image
InactiveCN101814181ACapture positive effectsEliminate the phenomenon of "pull"Image enhancementTelevision system detailsProjection PrincipleFisheye lens
The invention provides an unfolding method for restoration of a fisheye image, and relates to the restoration and correction of a fisheye image based on the equidistant projection principle of a spherical model. The method comprises the following steps of: establishing a spherical imaging model, consistent with the equidistant projection principle, of the fisheye image(including the establishment of a fisheye image coordinate system and a camera coordinate system); establishing an unfolded window coordinate system and an unfolded image coordinate system, and calculating the relationship between the two coordinate systems; establishing the relationship between the unfolded image coordinate system and the camera coordinate system; calculating the relationship between the unfolded image coordinate system and the fisheye image coordinate system; and finally obtaining a whole image unfolded in any specified direction. The method can overcome the defect of the methods that can unfold only the top part information of fisheye lenses and can not only restore the top part information, but also restore all information in any direction, The method can be applied to the equidistant projection principle based fisheye lenses as well as other projection principle based fisheye lenses, so that the method has a wide application prospect in fields of image tracking, monitoring, video conference and the like.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Real-time closed loop predictive tracking method of maneuvering target
InactiveCN102096925AReliable trackingContinuous and stable trackingImage analysisPrediction algorithmsClosed loop
The invention discloses a real-time closed loop predictive tracking method of a maneuvering target, which is a closed loop real-time self-adaptive processing method of on-line predictive immediate tracking in a maneuvering small target imaging tracking system and is mainly used for fields of photoelectric imaging tracking, robot vision, intelligent traffic control and the like. Due to the adoption of the method, a captured target can be extracted to to establish a flight track, the target flight track is filtered, the position of a target at a next collection time is predicted, a platform is processed in real time on line with high performance of a DSP main processor and a FPGA coprocessor, a prediction algorithm which can cope with target maneuver with higher accuracy is adopted to predict the motion state of the target in real time and a prediction result is utilized to drive a piezoelectric ceramic motor two-dimensional motion station to carry out overcompensation, thereby the self-adaptive predictive tracking is realized. The invention has the advantages that the method can overcome the defect of a largened tracking error caused by system delay and can still carry out continuous and stable tracking when the target maneuvers or is temporarily sheltered.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Providing virtual inserts using image tracking with camera and position sensors
Camera registration and / or sensor data is updated during a live event by determining a difference between an estimated position of an object in an image and an actual position of the object in the image. The estimated position of the object in the image can be based on an estimated position of the object in the live event, e.g., based on GPS or other location data. This position is transformed to the image space using current camera registration and / or sensor data. The actual position of the object in the image can be determined by template matching which accounts for an orientation of the object, a shape of the object, an estimated size of the representation of the object in the image, and the estimated position of the object in the image. The updated camera registration / sensor data can be used in detecting an object in a subsequent image.
Owner:SPORTSMEDIA TECH CORP
Vehicle-mounted pick-up stable platform
ActiveCN101872198AImprove command response speedAvoid changeImage analysisUsing electrical meansEngineeringImage tracking
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES
Systems and methods for improving image tracking based on touch events
Certain implementations of the disclosed technology may include systems and methods for improving image tracking based on touch events. A method is provided for outputting an image for presentation using an electronic device, the electronic device having a display refresh rate. The method includes detecting one or more touch events received via a touch sensitive surface screen associated with the electronic device, each touch event having a touch event position. The method also includes generating, by the electronic device, a synthetic touch event position based on the one or more touch event positions, the synthetic touch event position calculated to coincide in time with a predicted time, the predicted time being within an offset relative to a display refresh time corresponding to the display refresh rate. The method also includes outputting data based at least in part one or more of the synthetic touch event position.
Owner:GOOGLE LLC
Automatic tracking method and surveying device
ActiveUS20100245587A1Improve accuracyAccurate measurementImage enhancementTelevision system detailsMeasurement deviceLight spot
The present invention provides an automatic tracking method, comprising a light spot detecting step of detecting a light spot 37 from a target 31 supported on a moving object 30, a step of taking a moving image of the target and the moving object, a step of tracking based on the detection of the light spot, a step of performing image tracking based on the moving image in parallel to the tracking, a step of comparing a position of the target obtained by the tracking with a position of the image obtained by the image tracking, and a step of tracking based on a result of the tracking in case where the target position and the image position are within a predetermined range.
Owner:KK TOPCON
Infrared vision based automatic landing guidance method and system applied to fixed-wing UAV (unmanned aerial vehicle)
InactiveCN105501457AHigh precisionEnhanced target featuresAircraft landing aidsAutomatic aircraft landing aidsGuidance systemFixed wing
The invention discloses an infrared vision based automatic landing guidance method and system applied to a fixed-wing UAV (unmanned aerial vehicle). The system comprises two identical image tracking modules, an image processing module, a control module and a wireless transmission module, wherein each image tracking module comprises a camera and biaxial pan-tilt units. According to the method, the UAV is detected, identified and tracked in images with an image tracking technology, and deflecting angles of the pan-tilt units are accurately recorded; the relative space position of the UAV can be determined through geometric relationship analysis and trigonometric calculation of pitch heading angles of the two pan-tilt units and the distance between the pan-tilt units, and position information of the UAV is sent to the UAV through the wireless transmission module, so that the UAV is guided to accurately land. The infrared vision based automatic landing guidance system is constructed on two sides of a landing runway of the UAV, complicated image processing is performed based on powerful computing capacity of a ground-based computer, each guidance device is utilized to the greatest extent, the accuracy of the system is improved, the control is simple, and real-time performance and stability are good.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Target tracking apparatus, image tracking apparatus, methods of controlling operation of same, and digital camera
InactiveUS20100321505A1Accurate tracking processingPrevent large relative motionImage enhancementTelevision system detailsNuclear medicinePerformed Imaging
Owner:FUJIFILM CORP
Flexible tether position tracking camera inspection system for visual inspection of off line industrial gas turbines and other power generation machinery
InactiveUS20150341600A1Television system detailsMaterial analysis by optical meansImaging dataImage tracking
A camera scope inspection system with a flexible, tether mounted camera head that is maneuverable in confined internal cavities of power generation machinery. A camera head position sensing system inferentially determines the three dimension (3D) position of the camera head within the inspected machinery. Camera head position data are correlated with camera image data by a controller. In this manner correlated internal inspection image data and corresponding position data are available for future analysis and image tracking.
Owner:SIEMENS ENERGY INC
General video flexibility measurement system insensitive to ambient light
InactiveCN106225708AShield interferenceImprove image qualityUsing optical meansElasticity measurementBandpass filteringTheodolite
The invention discloses a general video flexibility measurement system insensitive to ambient light. The general video flexibility measurement system comprises a black-and-white industrial camera (1), an industrial fixed-focus lens (2), an electronic theodolite (3), a distance measurement machine (4), a tripod (4), a high brightness monochromatic LED target (6), a narrow bandpass filter sheet (7) corresponding to monochromatic light source wavelength and a computer (8); a monochromatic LED target is installed on a tested point; a video flexometer with the narrow bandpass filter sheet installed on the lens is utilized to record the video image of the LED target in real time; and flexible data is obtained in real time through an image tracking algorithm on the basis of image gray correlation matching or characteristic points extraction. The general video flexibility measurement system is insensitive to the change of ambient light, can realize high precision measurement for displacement or flexibility at daytime or nigh, can calculate multiple object positions in one image, and realizes real-time dynamic measurement of displacement or flexibility of multiple detected points.
Owner:BEIHANG UNIV
Image Tracking System and Image Tracking Method Thereof
InactiveUS20140005475A1Effective trackingAvoid too much unnecessary movements of the cameraLaproscopesEndoscopesControl signalVehicle tracking system
An image tracking system and an image tracking method. The image tracking system includes image capture module, detection module and processing module. The image capture module captures real-time image. The detection module analyzes the real-time image, and detects whether positions of a plurality of instruments are disposed in the real-time image. The processing module defines buffer zone in the real-time image, and analyses whether the instruments are disposed in the buffer zone based on the positions of the instruments, and determines whether spacing distance between the instruments is small than preset distance. When the spacing distance is smaller than the preset distance or the instruments are disposed outside the buffer zone, the processing module emits controlling signal to control the image capture module to move to capture position. As a result, the present invention may achieve image tracking real time and provide stable image.
Owner:NAT CHIAO TUNG UNIV
Vehicle type recognition and tracking method and system based on monitoring video
InactiveCN105868700ARun fastAvoid detectionRoad vehicles traffic controlCharacter and pattern recognitionVideo sequenceFixed length
The invention proposes a vehicle type recognition and tracking method and system based on a monitoring video, and the method comprises the steps: A, background modeling and foreground detection: enabling a relatively static part in a video sequence to serve as the background and to be separated from the foreground comprising a moving object; B, vehicle image feature extraction: extracting local feature descriptors in images, and employing an SIFT feature descriptor because the method can describe the content and features of the images better, thereby enabling the image noise and affine changes to be stable to some extent; C, vehicle image feature coding: enabling the local feature descriptors with different numbers to be coded as the fixed-length vectors, so as to adapt to the input of a classifier; D, vehicle image recognition: selecting and designing an appropriate classifier for the classification of the characteristic vectors of the images, thereby finally achieving the recognition purpose; E, vehicle image tracking: tracking a recognition image region with one vehicle type being recognized, thereby avoiding the repeated foreground detection and recognition, and improving the operation speed of the system.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Image tracking method and system for teaching based on multiple positioning cameras
InactiveCN105049764ASolve the problem of blind spot trackingEasy to install in batchesTelevision system detailsColor television detailsImaging processingImage tracking
The invention belongs to the field of education training course recording and playing, and specifically relates to an image tracking method and a system for teaching. According to the method and the system, image areas of movable targets can be accurately extracted, and image tracking shooting is accurately performed. The tracking method includes: a teacher image auxiliary positioning camera and student image auxiliary positioning cameras respectively acquire data video information of teacher and student areas and send the information to an image tracking processor; the image tracking processor employs the image processing technology, determines whether there are movable targets in the teacher or student areas, determines the specific position of the target, and solves a target image behavior analysis result of the teacher or student areas; the image tracking processor drives a teacher tracking camera or a student tracking camera to rotate or zoom according to the target image behavior analysis result of the teacher or student areas; and the image tracking processor informs a video switching module of the target image behavior analysis result of the teacher or student areas, and the video switching module sends a video switching instruction to a recording and playing server according to a directing switching strategy.
Owner:国朋天安(武汉)科技有限公司
Non-contact vibration detecting method of tower crane structure
InactiveCN103033253AFast extractionLarge amount of informationSubsonic/sonic/ultrasonic wave measurementUsing wave/particle radiation meansVibration measurementOutlier
The invention relates to a non-contact vibration detecting method of a tower crane structure and belongs to the technical field of detecting. The method is non-contact measurement. A multipoint and on-line test can be achieved by arranging a plurality of cameras without arranging a sensor on a detected object. The non-contact vibration detecting method of the tower crane structure has no load effect and is easy to implement. Image information is directly digitalized to form a full-automation and full-digitalization vibration measurement disposing and recording system. Amount of information is larger than that of a traditional method. Regions of interest (ROI)technology is used in the method to reduce an image tracking area and calculated amount. Speeded-up robust features (SURF) method is used to accelerate extraction rate of feature points. The PauTa criterion is used to reject'outlier' and improve accuracy of the SURF method. Reliability of a crane safety monitoring system in prior art is improved.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Method and equipment for image tracking processing
ActiveCN104732187AImprove accuracySolve the problem of accurately tracking the targetImage analysisCharacter and pattern recognitionComputer imageLinked list
The embodiment of the invention discloses a method and equipment for image tracking processing and relates to the field of computer image processing. The method and equipment for image tracking processing achieve the purpose of accurately tracking targets under complex situations and solve the problem that multiple targets shield one another and can not be well tracked, thereby improving accuracy of image tracking. The method includes the steps that the contact ratio between a prestored tracking target and a new tracking target is calculated according to an updated tracking chain table, and whether the new tracking target and the prestored tracking target shield each other or not is judged according to the contact ratio; if the prestored tracking target and the new tracking target shield each other, the new tracking target is monitored through linear fitting until the new tracking target and the prestored tracking target do not shield each other or leave a current video area; an unshielded tracking target in the tracking chain table is corrected through particle filtering. The method and equipment for image tracking processing are applied to image tracking technologies.
Owner:HANGZHOU HUAWEI ENTERPRISE COMM TECH +1
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