52 results about "Hyperacuity" patented technology

An image calibration method and a device are provided. The method includes: obtaining a pupil position offset of a user and a visual acuity of the user, where the pupil position offset of the user is an offset of a pupil of the user relative to an optical axis; and adjusting a to-be-displayed image based on the pupil position offset of the user and the visual acuity of the user. In this way, when the user wears a head-mounted display device improperly, a point seen by the user when the user looks straight ahead is a center point of an image displayed on a display.

An electronic device may have a display and a camera. Control circuitry in the device can gather information on a user's point of gaze using a gaze tracking system and other sensors, can gather information on the real-world image such as information on content, motion, and other image attributes by analyzing the real-world image, can gather user vision information such as user acuity, contrast sensitivity, field of view, and geometrical distortions, can gather user input such as user preferences and user mode selection commands, and can gather other input. Based on the point-of-gaze information and / or other gathered information, the control circuitry can display the real-world image and supplemental information on the display. The supplemental information can include augmentations such as icons, text labels, and other computer-generated text and graphics overlaid on the real world image and can include enhanced image content such as magnified portions of the real-world image.

A chart projector for testing visual acuity capable of detecting a brightness of a visual acuity chart which is projected to an examined eye includes at least one image display device which produces visual acuity chart image; a beam splitter; and a photo sensor which detects a brightness of the chart image reflected from the beam splitter to determine a brightness of visual acuity chart image which passes the beam splitter and projected to the examined eye or which detects a brightness of the chart image which passes the beam splitter to determine a brightness of visual acuity chart image reflected from the beam splitter and projected to the examined eye.

A virtual eye test can be conducted to evaluate visual acuity and perception in a virtual reality (VR) environment. The test can be conducted using an electronic device that includes a head-mounted display (HMD) and a camera. The electronic device can generate a VR user interface corresponding to photorealistic virtual environment and render the VR user interface on the HMD. The electronic device can simulate one or more real-world scenarios and while simulating the one or more real-world scenarios, in real time, track eye movements and responses from the wearer for testing visual acuity and perception of the wearer.

A mobile device and a method for testing an individual's vision are provided, the mobile device including a screen for displaying at least one test pattern, such as a smartphone or a tablet computer. A test of the individual's vision is performed using the test pattern displayed on the screen of the mobile device, in particular for testing visual acuity, contrast sensitivity and / or visual disturbances. Further, a parameter influencing the test result is evaluated before and / or during performing the test. The parameter includes at least one of the distance between the eye of the individual and the screen; the brightness at which the test pattern is displayed; and the ambient luminosity.

The invention discloses a flight personnel space orientation capability assessment method based on holographic eye movement characteristics, and belongs to the technical field of flight personnel capability assessment. Extracting multi-dimensional eye movement characteristics such as pupil contraction / expansion tracks, iris stability parameters and proportional change rate; aligning and matching the eye movement characteristics with real-time flight attitude and environmental stimulation data; carrying out collaborative analysis on the features, and generating a fusion eye movement feature vector insensitive to ambient light interference; and finally, inputting the spatial orientation capability into a pre-trained spatial orientation capability evaluation model, and outputting quantitative evaluation values of spatial perception acuity, environmental adaptability and stress response level. According to the method, the problems that an existing evaluation method is high in subjectivity, prone to being interfered by the environment and difficult to comprehensively reflect the complex physiological cognitive state of the pilot are solved, and more objective, stable and comprehensive quantitative analysis on the spatial orientation capacity is achieved.

A computer system for building dynamic local relocation acumen using large language models may be provided. The computer system may be programmed to (i) receive, from a user computer device, a selection of a location; (ii) retrieve, from one or more remote servers, information about the selected location; (iii) retrieve, from one or more remote servers, a plurality of images of the selected location; (iv) execute at least one model to output a location guide using the information about the selected location and the plurality of images of the selected location; (v) receive as output of the execution of the at least one model the location guide for the selected location; and / or (vi) transmit instructions to a user computer device to display the location guide on the user computer device.

The application belongs to the technical field of vision care, and provides a kind of intelligent glasses, glasses box and vision training method, intelligent glasses include: frame mechanism;Lens mechanism, it includes left mirror unit, right mirror unit and pupil distance adjusting unit, left mirror unit, right mirror unit are connected with pupil distance adjusting unit to realize lens pupil distance adjusting function;Drive mechanism is connected with pupil distance adjusting unit to realize zoom vision training function.The intelligent glasses provided by the application is simple in appearance, light in quality, can replace daily ordinary corrective glasses for use, can improve the user's retinal imaging quality by adjusting the lens pupil distance, reduce the eye fatigue, at the same time, the lens can be driven to reciprocate to realize zoom vision training function, effectively exercise ciliary muscle, improve the accommodation ability and acuity of ciliary muscle, play the effect of preventing and treating myopia and amblyopia, the vibration is weak, avoid the phenomenon of dizziness and discomfort produced in the training process, improve the user experience and vision training effect of wearer.

An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye; an objective measurement optical system configured to measure objective refractive characteristics of the subject eye; and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to perform measurement of the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during a weakest power test in which a weakest point is being obtained by the subjective measurement optical system, a maximum visual acuity value or a set predetermined visual acuity value being readable from the weakest point.

The present disclosure describes compositions comprising vitamin C, vitamin E, zinc, copper, lutein, zeaxanthin, and Coenzyme Q10, as well as pharmaceutically acceptable salts of any one of the foregoing. The compositions are useful for treating diseases associated with loss of visual acuity, including, for example, age-related macular degeneration, and supporting cardiac health.

Embodiments provide camera designs (e.g., eyeball cameras) that mimic the human eye in terms of geometry, optical properties, and / or motion. The eyeball camera uses the same cornea and pupil geometry as the human eye, and has an iris and pupil configured with a variety of textures, colors, or diameter options. The resolution of the eyeball camera is designed to match the acuity of typical 20 / 20 human vision, and the focal length is adjusted from 0 to 4 diopters. A pair of eyeball cameras are independently mounted on two hexapods to simulate the gaze and convergence of the human eye. The virtual and real worlds perceived are calibrated and evaluated based on eye conditions such as pupil position and gaze using eyeball cameras. The eyeball camera acts as a bridge to combine data from spatial computing (such as eye tracking, 3D geometry of the digital world, display color accuracy / uniformity, and display optical quality (clarity, contrast, etc.)).

To provide a dynamic visual acuity-enhancing composition.SOLUTION: Provided is a dynamic visual acuity-enhancing composition containing cassis anthocyanin as an active ingredient and improving dynamic visual acuity, particularly dynamic contrast discriminability.SELECTED DRAWING: None

Provided herein is a system and method that acquires data and determines a driving action based on the data. The system comprises a sensor, one or more processors, and a memory storing instructions that, when executed by the one or more processors, causes the system to perform, determining data of interest comprising an object, feature, or region of interest, determining whether a sharpness of the data of interest exceeds a threshold, in response to determining that the sharpness does not exceed a threshold, operating the sensor to increase the sharpness of the data of interest until the sharpness exceeds the threshold, in response to the sharpness exceeding the threshold, determining a driving action of a vehicle based on the data of interest, and performing the driving action.

The present invention is directed to methods for the use of 5'-adenosine diphosphate ribose (ADPR), and compositions thereof, for improving visual acuity, for example, in subjects having low / poor visual acuity resulting from an eye disease or condition.

This disclosure is of a human sensory information presentation arrangement for presenting sensory information to a human having a controller programmed to make available human visual and auditory presentation information, including at least visual information and non-verbal auditory signals; at least one human visual presentation device for receiving visual information from the controller, wherein the visual information comprises at least one or more human-readable characters or structured set of characters from a predetermined alphabet and predetermined number set to form a human-readable word or a number, presented one character or one structured set of characters at a time; and at least one human auditory presentation device for receiving a non-verbal auditory signal from the controller, and wherein the controller presents each human-readable character or structured set of characters while simultaneously presenting at least one of a predetermined non-verbal auditory signal. The arrangement can be used by various users with different mental acuity and cognitive capabilities, and certain combinations of elements and methods of use will be more effective than others in training, reading tasks, and assisting those with various human cognitive disorders and conditions.

One embodiment provides a system and method that assist in curing or providing relief for ocular conditions utilizing a visual aid device that presents images to one or more areas of interest on the eye of the user. Additionally, utilizing the described visual aid device, the system and method can induce hyperacuity in a user also through the presentation of images. Different characteristics of the images that are generated and presented may be modified based upon the desired application. Other embodiments are described herein.

Disclosed herein are system and method for testing and analysis of visual acuity and changes using an acuity model, the acuity model generated based on one or more acuity chart design parameters and candidate acuity parameters calculated using the acuity test data of the subject, the acuity model comprising a chart-specific psychometric function determined using a family of multiple-optotype psychometric functions, and wherein the acuity model is configurable to estimate possibility of obtaining the acuity test data of the subject.

Devices and techniques for vagus nerve stimulation. A device includes a power source; a pair of electrodes having an interelectrode distance defined to facilitate vagus nerve stimulation; and a controller configured to control current delivered from the power source to the pair of electrodes in a continuous stimulation pattern. Certain devices discussed herein are designed to be applied at a carotid triangle of a neck of a subject. Other devices discussed herein are designed to be applied to a cymba concha of an ear of a subject.

A map of a person's spatial vision abilities, including areas of low acuity and areas of high acuity, may be generated from medical records or from a calibration phase. During presentation of a computer simulation such as a computer game, the map is provided to a foveated renderer to optimize which areas should be rendered most crisply. Content placement may be optimized to ensure that any critical elements to the game, for instance, any text that needs to be seen or treasures or special pickups that need to be seen clearly can be moved into regions of the player's field of view that the person has higher acuity in.

The present disclosure concerns a testing device (500) comprising: a light-field projector display (100) sequentially emitting a plurality of light fields (101); a spatial light modulator (SLM) (3) controllable to modulate the light fields (101); projection optics (4) configured to project the modulated light fields (101) and form at least a virtual image (40) in a projection image plane (400); and wherein the SLM image pattern (61) is configured to add at least one refractive correction to said at least one virtual image (40). A human interface device (HID) (503) is configured to let a user select at least one of the virtual images (40) for which the user perceives as having the best image subjective quality input the refractive correction corresponding to the selected at least one of the virtual images (40) in a data storage unit (509). The present disclosure further concerns a computer-readable medium configured to perform a method for to assess the vision acuity of a user by using the testing device.

The invention discloses lactobacillus reuteri LR1349 and application thereof in improving eye injury induced by blue light, and belongs to the technical field of microorganisms. The lactobacillus reuteri LR1349 disclosed by the invention is preserved in the German Microorganism and Cell Culture Collection Center (DSMZ), and the preservation number is DSM 35135. The lactobacillus reuteri LR1349 provided by the invention can effectively improve the reduction of visual acuity, retinal dysfunction and retinopathy caused by blue light irradiation. Therefore, the lactobacillus reuteri LR1349 disclosed by the invention can be used for preparing medicines, foods or food additives for improving eye injury induced by blue light or relieving visual fatigue.

Described are various embodiments of a light field vision testing device, adjusted pixel rendering method and computer-readable medium therefor, and vision testing system and method using same. In one embodiment, a device or computer-implemented method is provided to dynamically adjust user perception of an input image to be rendered via a set of digital display pixels and a corresponding array of light field shaping elements until an optimal visual acuity level is identified.

According to one aspect, a method for validating a vision system includes providing a vision testing medium at a first distance from the vision system, communicating a first information relating to the vision testing medium from the sensing apparatus to a first system, and displaying, using the first system, a rendering of the vision testing medium based on the first information. The method also includes obtaining, using the first system, at least a first indication of a visual acuity associated with the vision system, determining when the visual acuity at least meets a threshold level, and identifying the sensing apparatus as validated when the visual acuity at least meets the threshold level.

The invention relates to the technical field of intelligent glasses, and discloses a dynamic vision guiding method and device for intelligent glasses and a storage medium. Acquiring an eye image; extracting a first eye feature and a second eye feature from the eye image; calculating an intersection amount of the first eye feature and the second eye feature, and adjusting a deformation amount and a brightness value of the guide image according to the intersection amount; the crossing amount comprises crossing uniformity and crossing depth; the higher the cross uniformity is, the smaller the deformation quantity is, and the lower the cross uniformity is, the smaller the deformation quantity is; the larger the crossing depth is, the larger the brightness value is, and the smaller the crossing depth is, the lower the brightness value is. The method has the advantage of being beneficial to training the visual acuity in the brain to activate the potential of the brain.

Embodiments of the invention are directed towards systems, methods and computer program products for providing improved eye tests. Such tests improve upon current eye tests, such as visual acuity tests, by incorporating virtual reality, software mediated guidance to the patient or practitioner such that more accurate results of the eye tests are obtained. Furthermore, through the use of one or more trained machine learning or predictive analytic systems, multiple signals obtained from sensors of a testing apparatus are evaluated to ensure that the eye test results are less error-prone and provide a more consistent evaluation of a user's vision status. As it will be appreciated, such error reduction and user guidance systems represent technological improvements in eye tests and utilize non-routine and non-conventional approaches to the improvement and reliability of eye tests.

An electronic device and a controlling method thereof are provided. For example, the electronic device may include: a projection unit including a projector, at least one sensor, a memory configured to store at least one instruction, and at least one processor, individually and / or collectively, configured to execute the at least one instruction, and at least one processor, individually and / or collectively, is configured to: obtain information regarding a first distance between the electronic device and a screen through the at least one sensor, obtain information regarding a second distance between the electronic device and a user through the at least one sensor, obtain information regarding a third distance between the user and the screen based on the information regarding the first distance and the information regarding the second distance, adjust at least one parameter related to a quality of a projected image based on the information regarding the first distance, the information regarding the third distance and information regarding visual acuity of the user, and control the projection unit to emit light corresponding to the image based on the adjusted at least one parameter.

A computer implemented method and corresponding computer program product and device determine an indication of a user's acuity level. The methods and devices facilitate performance of acuity tests in a decentralized manner while establishing a desired test accuracy irrespective of a particular type of device or display, to determine the indication in a reliable manner. A computer implemented method includes the steps of: performing an optical acuity test using a control unit in communication with a device display having a predefined resolution; and displaying the optical acuity test on the display. The displayed optical acuity test includes a graphical representation with a discontinuity and prompts the user to identify the discontinuity by providing a response. The control unit and display provide that the optical acuity test is adjusted by generating and displaying the discontinuity based on the response and based on anti-aliasing using one or more display pixels.

The present disclosure concerns a testing device (500) comprising: a light-field projector display (100) sequentially emitting a plurality of light fields (101); a spatial light modulator (SLM) (3) controllable to modulate the light fields (101); projection optics (4) configured to project the modulated light fields (101) and form at least a virtual image (40) in a projection image plane (400); and wherein the SLM image pattern (61) is configured to add at least one refractive correction to said at least one virtual image (40). A human interface device (HID) (503) is configured to let a user select at least one of the virtual images (40) for which the user perceives as having the best image subjective quality input the refractive correction corresponding to the selected at least one of the virtual images (40) in a data storage unit (509). The present disclosure further concerns a computer-readable medium configured to perform a method for to assess the vision acuity of a user by using the testing device.

A virtual eye test can be conducted to evaluate visual acuity in a dynamic virtual reality (VR) environment. The test uses an electronic device with a head-mounted display (HMD) and a camera. The device generates a VR user interface corresponding to a three-dimensional virtual environment and renders it on the HMD. A dynamic real-world visual experience is simulated in the VR interface. The device tracks eye movements and response times to visual stimuli presented in this dynamic experience, using the camera. Depth perception, motion detection, and spatial awareness are evaluated based on these measurements, providing a comprehensive assessment of dynamic visual acuity.