156 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 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 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 current invention provides methods of enhancing a subject's attentional state. The methods comprise a series of interactive behavioral assessments and interactive behavioral training sessions, which trains the individual to be in a more optimal attentional state throughout their day-to-day life, ultimately enhancing their cognitive performance, visuomotor performance, and emotion regulation.

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.

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 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.

A real time visual self-monitoring system for a user, said system comprising a camera (1) adapted for fixed monitoring in selectable relativity to said user (3), a monitoring means (6) for receiving camera output adapted for viewing by said user and a power supply (8) for said camera and monitoring means as required wherein said monitoring allows said user to selectively and/or simultaneously view their own real time motion from a remote vantage point in conjunction with their own peripheral vision.