159 results about "Visual motion" patented technology

Touch screen interfaces suffer from a visual-motor conflict when the user attempt to interact with a virtual object but experiences no physical sensations resulting from that interaction. This can result in uncertainly and decrease performance as well as overall satisfaction with the interface. We introduce a method and device that resolves these issues in stylus-based interfaces for both single and multi-user environments by providing individualized haptic and acoustic feedback. This is achieved by adding a mechanical actuator and acoustic generator to each stylus. These are controlled to respond appropriately to virtual objects and are capable of simulating a variety of physical sensations. Because the feedback is generated by the stylus rather than the screen or touch surface, the current invention can operate at the individual level even in the presence of multiple simultaneous users.

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.

An exercise device independent, variable display rate visual exercise system uses a sensor to sense repetitive movements or other physical functions of the user. A computing device-readable medium containing computing device executable instructions which, when run on a computing device, cause the computing device to receive a user-exercise signal related to a user-exercise level, determine a modified frame-display time for a visual-image stream in response to the user-exercise signal, and provide the modified frame-display time to a visual-image stream player. Determining the modified frame-display time may include instructions that determine a user-exercise level in response to the user-exercise signal, receive a camera-mount speed and a native frame-display time for a recorded visual-image stream, correlate the camera-mount speed and the user-exercise level, and modify the native frame-display time in response to the correlation to produce the modified frame-display time. These instructions permit the visual-image stream player when playing the visual-image stream to dynamically change the frame-display time as a function of the user-exercise level.

An apparatus, method and computer program product is presented to address early visual-sensory motor perception of a subject, where the method comprising the steps of: (1) controlling photic energetic parameters and / or photic perceptual attributes to trigger pre-attentive cuing or increase reactivity in magnocellular activity towards transient visual stimuli of the subject; and (2) generating a optical field comprising optical events based on said photic energetic parameters and said photic perceptual attributes, wherein said optical field transforms into a simple optical flow in the perceptual visual field of said subject. The photic energetic parameters may comprise light array energetic features, including one or more of wavelength, amplitude, intensity, phase, polarization, coherence, hue, brightness, and saturation.

The present invention provides a method, system and apparatus for a time stamped visual motion sensor that provides a compact pixel size, higher speed motion detection and accuracy in velocity computation, high resolution, low power integration and reduces the data transfer and computation load of the following digital processor. The present invention provides a visual motion sensor cell that includes a photosensor, an edge detector connected to the photosensor and a time stamp component connected to the edge detector. The edge detector receives inputs from the photosensor and generates a pulse when a moving edge is detected. The time stamp component tracks a time signal and samples a time voltage when the moving edge is detected. The sampled time voltage can be stored until the sampled time voltage is read. In addition, the edge detector can be connected to one or more neighboring photosensors to improve sensitivity and robustness.

Enablescoupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and / or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, without any tools. May utilize a weight that is removed when inserting the electronic package, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a shaft enclosure and expander that may be coupled with a screw aligned along an axis parallel to the axis of the golf club shaft. May utilize non-permanently and / or friction coupling between the mount and golf club shaft. Cap may include a visual marker and / or logo.

Enables coupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and / or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, for example without any tools. May utilize a weight that is removed when inserting the electronic package in the mount, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a shaft enclosure and expander that may be coupled with a screw aligned along an axis parallel to the axis of the shaft. May utilize non-permanently and / or friction coupling between the mount and shaft. Cap may include a visual marker and / or logo.

The prevention of vehicle accidents is targeted. A road texture model is created based on a vehicle camera image. An initial vehicle location estimate is determined, and map imagery is obtained based on this location estimate. A refined vehicle location is determined using visual egomotion. In particular, 3D features of the vehicle image and the retrieved map imagery are identified and aligned. A map image is selected based on this alignment, and the location associated with the map image is modified by a displacement between the selected map image and the vehicle image to produce a refined vehicle location. A road boundary model is created based on the road texture model and the refined vehicle location, and a road departure model is created based on the road boundary model and vehicle odometry information. The operator of the vehicle is warned of a road departure based on the road departure model.

The invention provides a test system of a stimulus information cognition ability value, comprising a stimulus information providing device, a sight tracking device, a feedback data acquisition device, a cognition index value analysis device, a cognition accuracy degree analysis device and a cognition ability value computing device. The stimulus information providing device shows vision and audition stimulus information for a tester; the sight tracking device tracks and records the motion state of eyes of a tester in the process of acquiring and processing the vision stimulus information; the feedback data acquisition device is used for acquiring feedback data input by the tester responding to the stimulus information; the cognition index value analysis device acquires a cognition index value of the tester in the process of processing the vision stimulus information according to the record of the sight tracking device through a visual motion analysis method; the cognition accuracy degree analysis device computes the cognition accuracy degree of the tester according to the content of the feedback data; and the cognition ability value computing device computes obtained standard scores for representing the comprehensive cognition ability of the tester according to the cognition index value and the cognition accuracy degree through a statistic method. The test system can more accurately record the cognition process of the tester and the difference of the cognition ability among testers and can also be widely applied in the fields of talent selection, job placement, learning ability diagnosis, advertising effect, safety training of drivers, and the like.

The present invention comprises a combination of an eye tracking capable camera module coupled with one or more targets displayed on a screen. The most preferred embodiments of the present invention will track eye movement relative to the position of the targets displayed on the screen and authenticate a user based on a pre-determined visual movement pattern of the user's eye and the targets displayed on the screen. The pre-determined movement pattern may include eye movement patterns including directional movement, dwell time, delays, and other similar variations. Additionally, a method for authenticating a user by implementing a system that is capable of tracking and recording a user's eye movements is also disclosed.

Enables coupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and / or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, for example without any tools. May utilize a weight that is removed when inserting the electronic package in the mount, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a shaft enclosure and expander that may be coupled with a screw aligned along an axis parallel to the axis of the golf club shaft. May utilize non-permanently and / or friction coupling between the mount and golf club shaft. Cap may include a visual marker and / or logo.

The invention discloses a combined camera shooting system, a mobile terminal and an image processing method. According to the combined camera shooting system, a laser projection device is used for projecting a structured light pattern of invisible laser to a shared field of view of a first camera shooting device and the second camera shooting device; the first camera shooting device is used for collecting a first visible light image and a first invisible light image synchronously; the second camera shooting device is used for collecting a second visible light image and a second invisible light image synchronously; and a processor is used for calculating a first depth image through utilization of the first invisible light image, calculating a second depth image through utilization of the second invisible light image, synthesizing the first depth image and the second depth image to obtain a third depth image, and carrying out visual motion tracking through utilization of the second visible light image. According to the system, the mobile terminal and the method, collection of the visible light image, collection of the target depth images and the visual motion tracking can be synthesized, and the depth image with a wider depth range and higher spatial resolution can be synthesized.

A visual motion analysis method that uses multiple layered global motion models to both detect and reliably track an arbitrary number of moving objects appearing in image sequences. Each global model includes a background layer and one or more foreground “polybones”, each foreground polybone including a parametric shape model, an appearance model, and a motion model describing an associated moving object. Each polybone includes an exclusive spatial support region and a probabilistic boundary region, and is assigned an explicit depth ordering. Multiple global models having different numbers of layers, depth orderings, motions, etc., corresponding to detected objects are generated, refined using, for example, an EM algorithm, and then ranked / compared. Initial guesses for the model parameters are drawn from a proposal distribution over the set of potential (likely) models. Bayesian model selection is used to compare / rank the different models, and models having relatively high posterior probability are retained for subsequent analysis.

Handle integrated motion capture element mount that enables coupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and / or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, for example without any tools. May utilize a weight that is removed when inserting the electronic package in the mount, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a handle without electronics for future upgrading. May utilize non-permanently and / or friction coupling between the mount and equipment.

The invention relates to a method for calibrating a mechanical arm joint and calculating a rotating angle based on visual motion capture and discloses a mechanical arm calibrating and tracking system based on the visual motion capture. The mechanical arm calibrating and tracking system comprises an optical driven motion capture system, computer master control equipment, visual software and an external display screen. The mechanical arm calibrating and tracking system comprises the following modules including a motion capture data acquiring and processing module, a mechanical arm joint calibration module, a joint angle calculation module and a three-dimensional virtual scene reproducing module based on OpenGL. The invention can be used as a practical and effective solution for calculating the mechanical arm joint and calculating the angle and has a favorable application prospect.

The invention provides a container-door-type crane simulation operation panorama simulation system and a method thereof. The system comprises an electrical control hardware system and a panorama simulation software system. The electrical control hardware system comprises a crane operation linkage bench, a PLC control system, an electrical control cabinet, a driving motor, a 3D helmet system and a PC. The panorama simulation software system comprises a virtual three-dimensional modeling system, a virtual reality simulation software system, a three-dimensional virtual scene output display system, a student information recording database, a theory examination module, an operation training module and an evaluation system. A student operates a crane linkage bench and other external hardware, through using an Ethernet, operation command and the PC carry out bidirectional communication and a set of crane simulation digit model is established. A three-dimensional graph rendering engine is used to drive visual motion and a crane driver controls electrical equipment so that loading and unloading work panorama simulation operation training is performed on a container of a virtual environment. In the invention, training efficiency and training safety of a crane student are increased.

An affine transformation analysis system and method is provided for matching two images. The novel systolic array image affine transformation analysis system comprising a linear rf-processing means, an affine parameter incremental updating means, and a least square error fitting means is based on a Lie transformation group model of cortical visual motion and stereo processing. Image data is provided to a plurality of component linear rf-processing means each comprising a Gabor receptive field, a dynamical Gabor receptive field, and six Lie germs. The Gabor coefficients of images and affine Lie derivatives are extracted from responses of linear receptive fields, respectively. The differences and affine Lie-derivatives of these Gabor coefficients obtained from each parallel pipelined linear rf-processing components are then input to a least square error fitting means, a systolic array comprising a QR decomposition means and a backward substitution means. The output signal from the least square error fitting means then be used to updating of the affine parameters until the difference signals between the Gabor coefficients from the static and dynamical Gabor receptive fields are substantially reduced.

A method is presented to address quantitative assessment of visual motor response in a subject, where the method comprises the steps of: (1) presenting at least one scene to a subject on a display; (2) modulating the contrast of a predetermined section of the scene; (3) moving the predetermined section relative to the scene with the movement being tracked by the subject via at least one input device; (4) measuring a kinematic parameter of the tracked movement; (5) quantitatively refining the tracked movement; (6) determining the relationship between at least one of the scene and the quantitatively refined tracked movement; (7) adjusting the modulated contrast relative to the quantitatively refined tracked movement; (8) calculating a critical threshold parameter for the subject; and (9) recording a critical threshold parameter onto a tangible computer readable medium. An apparatus for quantitative assessment of visual motor response of a subject comprising a display device, an input device, a control device, and a tangible computer readable medium. In its simplest sense, a quantitative assessment profile of visual motor capacity by psychophysical responses is generated on a tangible computer readable medium.

A system for the capturing, storing, searching and display of statistical, textual and visual sports information of both players and teams across a wide spectrum of game situations is described. A user can search through an enormous amount of stored statistical and visual information to find highly specific information about a particular player, team, or game situation involving a particular player and / or team. A series of search drill down menus allows the user to very quickly and easily go sequentially through a number of search result options to find the particular piece (or pieces) of information being sought, whether it is statistical or visual in nature, about a particular player, team, or game situation. Information regarding the search result is also simultaneously displayed with the corresponding text and visual information, which allows the user to put the particular play or player act into proper context.

The invention discloses a robot dynamic capture method and system. The method comprises the steps that S1, a collected image transmitted from an industrial camera is received in real time, and the obtained image is preprocessed; S2, a template tracking algorithm based on multiple clues is utilized to determine a foreground target region; S3, a template matching algorithm based on an edge gradientis adopted to precisely recognize a foreground target; S4, a random sampling consensus algorithm is adopted to perform modeling on motion information of an object in a view field; and S5, the information is fed back to a robot in real time for dynamic capture in combination with camera calibration and hand-eye calibration parameters. According to the robot dynamic capture method and system, by theadoption of a target tracking algorithm based on multiple clues, the motion target foreground region can be extracted efficiently and accurately; and under the application scene of robot sorting, therunning speed of a visual motion target tracking algorithm can be effectively increased, high-frame-rate real-time recognition is realized, and therefore the precision of visual servo is improved.

The invention discloses a cognitive rehabilitation training system. The cognitive rehabilitation training system is characterized by comprising a host, a display, a broadcast device, a sound recording device and a video recording device, wherein the display is communicated with the host; the broadcast device is connected with the host; the sound recording device is connected with the host; the video recording device is connected with the host; a cognitive rehabilitation training system main module is arranged in the host. The cognitive rehabilitation training system disclosed by the invention can be used for training the reactive behavior, logical thinking ability, planar operability, search capability, detail memory, focus attention, computing ability and visual motion coordinating ability of a patient, so that the patient can keep a current cognitive function, the function decline is delayed, the self-care degree of the patient is increased, and the living quality of the patient is improved.

The invention discloses an on-site robot in-situ measurement and milling repair integrated system. The system comprises a mechanical motion system, an electrical control system, a robot milling machining system, a three-dimensional vision measurement and machining track generation system, and a machining process online monitoring and self-adaptive regulation and control system. By means of modulardesign and lightweight design, equipment move-in is achieved, and the space of a to-be-machined area of a large curved surface closed structure can be reached by virtue of an annular guide rail, a moving trolley, a lifting platform and a robot. Automatic measurement and trajectory planning of the robot are achieved through the three-dimensional vision measurement and machining trajectory generation system. The machining process real-time three-dimensional visual motion simulation, and real-time monitoring and self-adaptive regulation of signals such as force / vibration / spindle current are achieved through the machining process online monitoring and self-adaptive regulation and control system, and the automatic and intelligent machining of the large curved surface closed structure by the robot is achieved.

The invention discloses a robot laser cleaning path planning system and method based on computer vision. The system comprises a vision motion capturing module, a computer work station, a mechanical arm, a laser cleaning device arranged at the tail end of the mechanical arm, a depth camera and a demonstration device. The demonstration method based on computer vision is adopted, a user finishes pathplanning through the demonstration device, and a robot is guided to conduct laser cleaning on a target workpiece in a human-machine cooperation manner. The method is applied to small workpiece assembly line work, and the work efficiency can be improved; and for to-be-machined large workpieces, the demonstration efficiency can be improved, meanwhile, the experience of people is sufficiently combined, and the problem that in the real complex environment, the error rate of an automatic vision recognition method is high is solved.

The invention discloses a visual motion evoked brain-controlled lower limb active and passive cooperative rehabilitation training system, which comprises a visual stimulation module, wherein the output of the visual stimulation module is connected to the first input of an electroencephalogram signal acquisition module; the second input of the electroencephalogram signal acquisition module is connected to the output of a lower limb rehabilitation training module; the output of the electroencephalogram signal acquisition module is connected to the input of a computer which is provided with an active and passive cooperative control module; the first output of the computer which is provided with the active and passive cooperative control module is connected to the input of the visual stimulation module; and the second output of the computer which is provided with the active and passive cooperative control module is connected to the input of the lower limb rehabilitation training module; active stimulation on motion control nerves and passive stimulation on motion perception nerves are achieved, and a closed-loop nerve bypass is established so as to promote neural reorganization and reconstruction; and meanwhile, the rehabilitation training is completed on the basis of the full development of patient's subjective desire, and the interesting of the rehabilitation training is enhanced, so that patient's initiative is mobilized.

A human-computer interaction method based on neural signals relative to the visual movement relates to the technical filed of the human-computer interaction, and is characterized in that the method comprises the following steps: connecting a human-computer interaction unit waiting to be chosen with motional elements started at different times; arranging an EEG electrode in visual movement area of the user head for recording EEG signals; separately extracting brain waveforms corresponding to each motional element in a sequence according to the difference of the time starting; detecting whether an N2 electric potential corresponding with the visual movement; detecting that a human-computer interaction unit corresponding with the simulation of the N2 electric potential is considered as a target for a tested person; finishing the corresponding functional module by a computer, so as to realize the human-computer interaction. The testing results by the system shows that the choosing of a target averagely costs 6 seconds, and both the detection rate and the false reject rate meet the requirement of the regular human-computer interaction. The method has the advantages of having no scintillations, hardly causing the visual fatigue, and being suitable for low contrast and low illumination condition, and different human-computer sites.

Handle integrated motion capture element mount that enables coupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and / or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, for example without any tools. May utilize a weight that is removed when inserting the electronic package in the mount, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a handle without electronics for future upgrading. May utilize non-permanently and / or friction coupling between the mount and equipment.

The invention discloses a transfer alignment method and device based on visual movement modeling and belongs to application fields of visual navigation and transfer alignment fields. According to the requirements and the actual conditions, a high-speed camera is pre-arranged adjacently to a secondary inertial navigation so that the secondary inertial navigation to be detected is located in a photographing visual field of the camera; and the camera is fixedly connected with a primary inertial navigation. High-accuracy and high-precision characteristic point information of mark points of inertial navigation equipment is collected by the camera and image sequences obtained by a visual camera are used for carrying out dynamic parameter modeling on relative movement of the primary and secondary inertial navigations, even relative disturbance. On the basis of quickly establishing a dynamic model, the transfer alignment of the primary and secondary inertial navigations is realized by utilizing the transfer alignment to establish a Kalman filtering equation. The transfer alignment method and device based on the visual movement modeling can be used for the field needing to carry out alignment on the primary and secondary inertial navigations and solve the high-precision transfer alignment problem.