9 results about "Pupillary response" patented technology

An exemplary system provides a display and a camera on the same side of a device. In some examples, instead of providing a stimulus with a flash of light, the system may utilize the user's eyelids to dark-adapt the pupil and mediate the stimulus using ambient light and / or the light from a display. Use of a front-facing display and front-facing camera further allows the disclosed system to control the ambient lighting conditions during image capture to ensure that additional pupillary stimulation does not occur while measuring the primary pupil response.

Disclosed are systems and methods for extracting high resolution oculometric parameters and eye movement parameters. A video stream having a video of a face of a user is processed to obtain a set of oculometric parameters, such as eyelid data, iris data (e.g., iris translation, iris radius and iris rotation), and pupil data (e.g., pupil center and pupil radius). The oculometric parameters are generated at a first temporal resolution. The oculometric parameters are up sampled to increase the temporal resolution to a second temporal resolution. The oculometric parameters are then processed to generate various eye movement parameters such as blink parameter, pupil response parameter, saccade parameter, anti-saccade parameter, fixation parameter, or smooth pursuit parameter. The oculometric parameters are synchronized with a video stimulus presented on a user device prior to generating the eye movement parameters.

Methods and systems for administering a modular and / or flexible eye test to patients are presented that leverages on the visualization, processing, and eye tracking capabilities of a head mounted display (HMD). In an embodiment, a method for evaluating the pupillary responses includes using a head mounted display (HMD) worn by a patient to expose a first eye to light stimulation in accordance with a relative afferent pupillary defects (RAPD) eye test, an imaging device of the HMD receiving image data of the first eye, then exposing a second eye to the same RAPD eye test and receiving image data of the second eye, and generating at least one test result by using the image data of the first eye and the image data of the second eye.

The present disclosure is directed to systems and methods for measuring pupillary responses to visible light stimuli. An exemplary system provides a display and a camera on the same side of a device; the display provides a visible light stimulus to illuminate a user's face and cause a pupillary reflex. A visible light or infrared camera thereafter receives image data of the pupillary light reflex. In some examples, an ambient light sensor and infrared measurement systems allow for performing pupillary light reflex assessments in low lighting conditions.

Various implementations disclosed herein include devices, systems, and methods that determine an interaction event during presentation of an interaction element. For example, an example process may include obtaining physiological data associated with a pupil during presentation of an interaction element, determining, based on the obtained physiological data, a pupillary response during the presentation of the interaction element, determining that the pupillary response corresponds to attention response characteristics associated with attention of a region of the regions of the interaction element based on the different illumination characteristics of the regions, and determining an interaction event during the presentation of the interaction element based on determining that the pupillary response corresponds to directing attention to the region during the presentation of the interaction element.

An example system has a display and a camera on the same side of a device. In some instances, the system can utilize a user's eyelids to dark adapt the pupil and use ambient light and / or light from the display to adjust stimuli, rather than using a flash to provide the stimuli. The use of a front-facing display and front-facing camera further allows the disclosed system to control ambient light conditions during image capture to ensure that no other pupil stimuli are generated when measuring the raw pupil response.

The invention belongs to the technical field of risk assessment, and particularly relates to a traumatic hemorrhage risk assessment method and system, and the method comprises the steps: obtaining pupil reaction data of a patient, and determining a basic state value of pupil reaction based on the pupil reaction data; adjusting ambient light intensity according to the basic state value, and monitoring pupil reaction change after the ambient light intensity is adjusted; an abnormal fluctuation interval is recognized according to the pupil reaction change condition, and the abnormal fluctuation interval is compared with a preset safety threshold value; predicting the blood loss degree according to the comparison result, and evaluating the shock risk in combination with the predicted blood loss degree. By recording and analyzing pupil reaction changes of a patient under different illumination conditions, determining a basic state value and identifying an abnormal fluctuation interval, the blood loss degree is predicted and the shock risk is evaluated, and the method not only can quickly obtain data required by evaluation and reduce diagnosis time, but also can improve the evaluation accuracy and improve the diagnosis efficiency. Therefore, a more reliable decision basis is provided for emergency doctors.

A portable ophthalmic diagnostic system comprises a housing containing a red reflex illumination subsystem for visualizing lens and optical clarity, and a digital slit lamp subsystem with an adjustable dual-sided illumination source and digital imaging sensor for capturing eye images. The system includes an artificial intelligence processing interface that analyzes red reflex and slit-lamp image data to detect and classify ocular conditions including cataracts and optic nerve abnormalities. A colorimetric pupillary light reflex testing module assesses pupil constriction response using multicolor illumination. The system features a user interface displaying real-time images, diagnostic outputs, and AI-based classification results. The system enables computer-implemented methods for detecting ocular conditions through image capture, AI processing, red reflex analysis, cataract classification, pupillary response testing, and diagnostic report generation. The portable design includes telemedicine functionality for remote clinical consultation and cloud-based data storage for tracking disease progression.

Method for monitoring the pupillary response of at least one pupil of a driver in a vehicle (1), the method comprising the following steps: • Illuminating a traffic sign using a high beam assist system (2), wherein the illumination of the traffic sign is continuous or pulsed (P1); • Measuring the pupillary response of the driver, wherein the pupillary response includes a diameter and dynamics of the at least one pupil and wherein the measurement is performed using a camera (3) (P2); • Classifying the pupillary response based on the measured values ​​obtained by the measurement (P3); • Determining a risk level (P4).