285 results about "Eyeball movements" patented technology

The OculoKinetic Device is used to test an individual to evaluate brain functions and to identify the presence of a traumatic brain injury or disease which manifests itself through abnormal ocular responses to stimuli by using the high-speed tracking of an individual's eye movements, pupil size and reactivity, eye lid position and blink parameters and optionally along with other ocular elements, i.e., eyeball pressure, temperature, blood flow, etc. The eye movement stimulus protocol uses a target that moves in any direction of the two-dimensional plane and may use a color display or geometric shapes. In addition, the stimuli can be used in conjunction with cognitive testing, balance assessment, and other non-eye tests.

The invention relates to a head-mounted wireless video eye tracker which is independently designed. Information is exchanged through analysis software of a wireless router and a computer without any peripheral cable connection. Multiple technologies such as an embedded system, image compression and a wireless local area network are comprehensively applied for the head-mounted wireless video eye tracker, eye movement video information is obtained by applying camera with an infrared LED illumination, image compression is completed through a digital signal processor (DSP) chip after the eye movement video information is decoded, then the decoded eye movement video information is transmitted to the computer by the wireless router through the wireless transmission module, a control signal sent by the analysis software of the computer, a corresponding visual stimulation dynamic image is generated, and is displayed through video eyeglasses arranged on a helmet to guide a subject for generating eye tracking information. The analysis software running on the computer also realizes image decompression and pupil location to obtain eyeball movement locus, so that multiple test items are tested.

The invention discloses a method and a device for operating a browser based on eye-movement tracking. The method comprises the steps of shooting a facial image of a user through a camera at every set time and describing the facial image to a Canvas, describing eyeball images to the Canvas after the eyeball images are extracted from the facial image, and acquiring the pixel data of the eyeball images from the Canvas; acquiring the eyeball data shot every time according to the pixel data and a set eyeball catching algorithm, and determining the user to be focused on a special content in a browser page when the difference valve of every adjacent two-time eyeball positions is less than a preset threshold valve and the retention time of eyeballs is more than the set time of the eyeballs; if the semi-diameters of pupils are detected to be amplified, looking for corresponding focal coordinates of the pupils in a webpage, and determining dom element label objects corresponding to the focal coordinates; and executing corresponding browsing operation according to relative relations between the preset dom element label subjects and performed actions. The execution of the browsing relative operation can be realized based on the eyeball movement by using the method.

The invention is applied to the technical field of intelligent terminals, and provides as screen brightness regulation method and a screen brightness regulation device. The method comprises the following steps of acquiring the eyeball movement information of a user; acquiring a focus area of eyeballs of the user on a screen of an intelligent terminal according to the eyeball movement information; regulating the brightness of the focus area on the screen to be first display brightness, and regulating the brightness of the other area on the screen to be second display brightness, wherein the other area is the area, except the focus area, on the screen. According to the method and the device, the brightness of different areas on the screen can be regulated according to the focus information of the eyeballs of the user, so that the power consumption of a display screen or a touch screen is effectively reduced, and the user favorably concentrates on an attentively watched screen area.

The invention provides a commodity browse method and a system based on eyeball tracking. The method comprises the steps that eyeball movement of a user is positioned and tracked by image acquisition equipment with an eyeball tracking function, a front camera of the image acquisition equipment acquires eye information of the user, a rear camera of the image acquisition equipment acquires a commodity image, and a user can quickly acquire commodity information from the commodity image and select a needed commodity by positioning gazing coordinates of eyeballs of the user on the commodity image and zooming in the commodity image according to the positioned gazing coordinates.

A sleepiness sign detection apparatus, includes: a head movement detection unit configured to detect a head movement to generate a head movement data; an eye movement detection unit configured to detect an eye movement to generate an eye movement data; an ideal eye movement angular velocity calculation unit configured to calculate an ideal eye movement angular velocity based on the head movement data generated by the head movement detection unit; an eye-rotation angular velocity calculation unit configured to calculate an eye-rotation angular velocity based on the eye movement data generated by the eye movement detection unit; and a sleepiness sign detection unit configured to detect vestibule-ocular reflex (VOR) from the ideal eye movement angular velocity and the eye-rotation angular velocity, and determine a sign of sleepiness based on the vestibule-ocular reflex.

An image selected to be printed is rendered for display, prior to printing, based on the relative position and orientation of a display in relation to a user's head, where the displayed rendered image is a representation of what the rendered image will look like when printed. The user's eye movement relative to the rendered image is tracked, with at least one area of interest in the image to the viewer being determined based on the viewer's eye movement, an imaging property of the at least one area of interest is adjusted, the image to be printed is rendered based on adjusting the imaging property, and the image is printed.

The invention relates to an immersive three-dimensional rendering projection system and method for a moving view point on a curved screen. The method is based on an immersive three-dimensional rendering projection system for a moving view point on a curved screen. The method comprises the following steps: acquiring user information: tracking user's head position and posture information, and estimating user's binocular positions and sight direction; setting three-dimensional rendering parameters: according to the estimated user's binocular positions and sight direction, adjusting a three-dimensional camera in real time to perform three-dimensional rendering of the moving view point on the parameters; performing dynamic parallax adjustment: performing post processing on the parallax of the rendered three-dimensional image according to the relative position relation between the user and the screen and the geometric shape information of the projection screen, so that the user views comfortable and correct three-dimensional images at his position; optimizing user perception: for user's head posture and eyeball movement, further optimizing the image respectively after the dynamic parallax adjustment; and projecting a three-dimensional scene: watching a virtual roaming three-dimensional scene by the user wearing a pair of three-dimensional glasses.

A faceguard is configured for measuring a human eye muscle movement response. The faceguard is configured for protecting at least one part of a human face and has an aperture for human vision through the faceguard. The faceguard comprises an eye sensor, a head orientation sensor, and an electronic circuit. The eye sensor comprises a video camera and is configured for measuring eyeball movement, pupil size, and/or eyelid movement. The head orientation sensor senses pitch and/or yaw of a person's head. The electronic circuit is responsive to the eye sensor and the head orientation sensor.

A transfer assist apparatus includes an anxiety measurement unit that detects a physical change linked to a sense of anxiety in the care-receiver and measures a degree of anxiety in the care-receiver, and a control unit that control the drive unit correspondingly to a trajectory inputted by the operation unit and performs feedback control so as to reduce the degree of anxiety measured by the anxiety measurement unit. The anxiety measurement unit detects at least one of a heart rate, an amount of perspiration, a breathing rate, an eyeball movement, an electric resistance of skin, and a skin temperature as the physical change linked to a sense of anxiety in the care-receiver. The control unit sets a speed limit of the drive unit correspondingly to the degree of anxiety measured by the anxiety measurement unit and restricts the drive speed of the drive unit not to exceed the speed limit.

The invention discloses an automatic shooting method and system of a wearable device. The system comprises an eyeball movement detection module, a calculation module, a shooting module and a storage module. The eyeball movement detection module is used for detecting eyeball movement and outputting eyeball movement data; the calculation module is used for identifying eyeball pauses according to the eyeball movement data and outputting the line-of-sight direction formed during eyeball pausing and a shooting instruction; after receiving the shooting instruction, the shooting module conducts focusing according to the line-of-sight direction formed during eyeball pausing and then starts to shoot, and a picture is output; the storage module is used for storing the picture. When a person sees a thing with eyes, a picture can be seen clearly after the eyes are turned to fixed positions first, pause and then are focused. The method and system simulate the process, pauses in eye movement are detected, the line-of-sight direction formed during eyeball pausing is identified, automatic focusing is carried out, automatic shooting is conducted for recording, the real view field of a user can be recorded more truly and efficiently, and pictures seen by human eyes can be restored in real time.

The invention discloses an on-vehicle head-up terminal and a method for controlling display brightness of the same. The on-vehicle head-up display terminal comprises a controller, a display device which is connected with the controller, and an eyeball tracking device. The eyeball tracking device is connected with the controller and is used for monitoring movement of eyeballs in real time and transmitting captured image information to the controller. The controller is used for determining a visual line focusing point of the eyeballs according to an eyeball tracking algorithm and controlling the operation state of the display device according to determining result. According to the technical solution of the invention, the eyeball movement of a driver is monitored in real time through adding the eyeball tracking device; furthermore whether the visual line focusing point is on the display device is determined; and the operation state of the display device is controlled according to the determining result, thereby ensuring a fact that attention of the driver is not interfered by the display content and brightness, reducing negative effect of the on-vehicle head-up display terminal in a using process and furthermore greatly reducing power consumption of equipment.

The invention discloses a vision rehabilitation training method and system. The vision rehabilitation training system is composed of an eyeball tracking module, an intelligent terminal, a virtual reality head-mounted display and a vision rehabilitation training module. According to the vision rehabilitation training method, the process of movement of an object according to a preset movement trackis tracked and viewed through eyeballs; through eyeball movement, ciliary muscles are trained, the spasm fatigue condition of the ciliary muscles is improved, the adjusting capacity of the ciliary muscles is enhanced, elasticity is recovered, and crystalline lenses of the eyes are stretched; and thus, a vision condition is improved, and vision rehabilitation effect is achieved without an operation.

The invention provides a page automatic adjusting method and device. The page automatic adjusting method comprises detecting eyeball movement information; generating an adjusting command of a page in a screen according to the eyeball movement information; adjusting page display in the screen according to the adjusting command. According to the page automatic adjusting method, the page is automatically adjusted, so that the page is displayed in the screen according to user browsing purposes, a user is not required to input any operation, the page adjusting operation is simplified, and the page adjusting efficiency is improved.

The invention provides a visual attention detection method based on eyeball movement and a system thereof. The method comprises the steps that visual attention test content is displayed through firstdisplay equipment; acquiring a plurality of face images when a testee reads the plurality of E-shaped marks, identifying eye images corresponding to the face images according to the plurality of faceimages, and determining pupil position data of the eye images according to the plurality of eye images, based on the pupil position data, determining fixation point position information of the visualattention test content of the testee on the first display equipment, and determining the visual attention level of the visual attention testee according to the fixation point position information andthe visual attention test content. According to the technical scheme, the visual attention of the visual attention testee can be evaluated automatically, so that the evaluation is more objective, andthe defects of an existing clinical visual attention detection technology are overcome.

Provided are an image processing device and an image processing method for acquiring a consciousness level at which a driver recognizes a surrounding environment on the basis of an image of the driver picked up by an in-vehicle camera.

An image of an eyelips is picked up by an in-vehicle camera 100 at low resolution and eye positions grasped in the image analysis are corrected for each frame while being subjected to local high-speed processing in parallel, whereby the tracking of the saccade among eyeball movement is realized. That is, active local high-speed eye tracking is performed only on a capture frame 102 in an image picked up by the in-vehicle camera 100, whereby it becomes possible to monitor the saccade of the eye movement without causing an attachment load.

Various aspects of the subject technology relate to prediction of eye movements of a user of a head-mountable display device. Predictive foveated display systems and methods, using the predicted eye movements are also disclosed. Predictive variable focus display systems and methods using the predicted eye movements are also disclosed. Predicting eye movements may include predicting a future gaze location and/or predicting a future vergence plane for the user's eyes, based on the current motion of one or both of the user's eyes. The predicted gaze location may be used to pre-render a foveated display image frame with a high-resolution region at the predicted gaze location. The predicted vergence plane may be used to modify an image plane of a display assembly to mitigate or avoid a vergence/accommodation conflict for the user.

A visual-eye movement reflex examination method by utilizing a virtual visual target comprises the following steps: 1) a virtual visual target image for visual stimulation is displayed by a virtual visual target optical display system; 2) an eyeball movement image of a detected person caused by the virtual visual target image is photographed by an eyeball movement image collection system; 3) the eyeball movement image is processed by an image processing module, thus forming a curve of the position of a pupil which is changing with the time; the visual-eye movement reflex examination method by utilizing the virtual visual target of the invention can facilitate the vestibular detection.

The invention discloses a man-machine interaction control method and an electronic terminal. The method is applied to the electronic terminal. The electronic terminal is provided with a first operation mode and a second operation mode, and comprises a detection part. The method comprises the steps as follows: detecting eyeball movement of a user through the detection part; judging if the operation mode of the electronic terminal needs to be switched according to the eyeball movement of the user; and if so, switching the electronic terminal between the first operation mode and the second operation mode according to the eyeball movement of the user.