439 results about "Eye closure" patented technology

A near-eye display projects virtual images from an image generator to an eyebox within which the virtual images can be seen by a viewer. A first optical path conveys image-bearing light from the image generator to a selectively reflective powered optic and a second optical path conveys the image-bearing light along a line of sight from the selectively reflective powered optic to the eyebox. First and second selectively reflective surfaces fold the first optical path with respect to the second optical path to locate the image generator out of the line of sight to the eyebox. The image generator is effectively inclined to the line of sight to the eyebox for reducing a thickness of the near-eye display. The selectively reflective powered optic is oriented normal to local overlapping portions of the first and second optical paths at the selectively reflective powered optic.

An eye mask has magnetic bodies and self-heating warm members, which are inserted in eye pads on a mask member to be placed over eyeball parts. If required, vibrators and illumination bodies may be additionally placed in the eye pads. Thus, fatigue on the eyes and surroundings thereof can be relieved by the magnetic actions of the magnetic bodies and the warming effects of the warming member, in addition to expected effects of restoring ocular functions, recovering from various ocular diseases, and so on. Furthermore, the surface of each of the eye pads is gradually curved like the inner surface of a sphere. When the eye pads are press-contact to the eyeball parts at predetermined pressures for a long time, the cornea can be warmed by the warming members so that the shape of the cornea can be changed along the shape of the eye pad, resulting in the effects of recovering from eye sight disorder such as pseudo-myopia, moderate farsightedness, or moderate astigmatism.

Embodiments include an eye cover adapted to be removeably mounted on a head-worn computer with a see-through computer display where the eye cover includes a flexible audio headset mounted to the eye cover. The flexibility of the audio headset provides the user of the head-worn computer with a mechanism to align the audio headset with an ear of the user.

System and method for monitoring the physiological behavior of a driver that includes measuring a physiological variable of a driver, assessing a driver's behavioral parameter on the basis of at least said measured physiological variable, and informing the driver of the assessed driver's behavioral parameter. The measurement of the physiological variable can include measuring a driver's eye movement, measuring a driver's eye-gaze direction, measuring a driver's eye-closure amount, measuring a driver's blinking movement, measuring a driver's head movement, measuring a driver's head position, measuring a driver's head orientation, measuring driver's movable facial features, and measuring a driver's facial temperature image.

An eyewear apparatus for treating dry eye conditions featuring a pair of curved eyecups having interior cavities for providing treatment to the eyes when worn. Each interior cavity has a sidewall surface adapted to removably engage with the perimeter edge of a moisture pad which may be mounted therein to provide moisture, aroma, or medicinal treatment to the eye. An ocular cavity formed in the moisture pads provides a separate treatment chamber to each of the two eyes of a user. Heat or cold may also be provided to the ocular chamber through temperature components which mount to the moisture pad or in a gap between the moisture pad and the front of the interior cavity.

The invention relates to the technical field of man-machine interaction and provides a man-machine interaction method based on sight judgment, to realize the operation on an electronic device by a user. The method comprises the following steps of: obtaining a facial image through a camera, carrying out human eye area detection on the image, and positioning a pupil center according to the detected human eye area; calculating a corresponding relationship between an image coordinate and an electronic device screen coordinate system; tracking the position of the pupil center, and calculating a view point coordinate of the human eye on an electronic device screen according to the corresponding relationship; and detecting an eye blinking action or an eye closure action, and issuing corresponding control orders to the electronic device according to the detected eye blinking action or the eye closure action. The invention further provides a man-machine interaction system based on sight judgment. With the adoption of the man-machine interaction method, the stable sight focus judgment on the electronic device is realized through the camera, and control orders are issued through eye blinking or eye closure, so that the operation on the electronic device by the user becomes simple and convenient.

A system for detecting eye closure through optical observation of the eye includes a frame configured to be worn on a user, a light source, and at least one eyepiece connected to the frame. The eyepiece has a reflective surface on a side facing the user's eye when the frame is positioned on the user and the reflective surface of the eyepiece is configured for reflecting light emitted from the light source onto the eye. A sensor is connected to the frame and is operable to detect light reflected by the eye in a direction that is substantially parallel to the light incident on a retina of the eye to detect that the eye is in an open position.

A monitoring system monitors and / or predicts drowsiness of a driver of a vehicle or a machine operator. A set of infrared or near infrared light sources is arranged such that an amount of the light emitted from the light source strikes an eye of the driver or operator. The light that impinges on the eye of the driver or operator forms a virtual image of the signal sources on the eye, including the sclera and / or cornea. An image sensor obtains consecutive images capturing the reflected light. Each image contains glints from at least a subset or from all of the light sources. A drowsiness index can be determined based on the extracted information of the glints of the sequence of images. The drowsiness index indicates a degree of drowsiness of the driver or operator.

A low-cost system for detecting a drowsy condition of a driver of a vehicle includes a video imaging camera located in the vehicle and oriented to generate images of a driver of the vehicle. The system also includes a processor for processing the images acquired by the video imaging camera. The processor monitors an eye and determines whether the eye is in an open position or a closed state. The processor further determines a time proportion of eye closure as the proportion of a time interval that the eye is in the closed position, and determines a driver drowsiness condition when the time proportion of eye closure exceeds a threshold value.

A rotation mechanism (rotating device) that can be easily accessed by the surgeon's finger to rotate an endoscope or similar instrument. The rotation mechanism is a device / component with a “starfish” configuration, which can be attached to the endoscope / arthroscope just distal to the eyepiece (or to an alternate attachment to a camera). The starfish component has a plurality of projections that extend radially from the endoscope axis, and beyond the diameter of the mechanism on the camera head that grasps the arthroscope eyecup. The projections can be easily accessed by the surgeon's finger to rotate the endoscope.

A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye. The system also includes a video processor for processing the images generated with the video imaging camera. The processor includes an edge detector for detecting edges of the eye in the image and a line selector for generating substantially horizontal first and second lines representative of the detected edges. The processor determines the state of eye closure, such as eye open or eye closed, based on distance between the first and second lines. The system may be employed on a vehicle to determine the eye closure of a driver of the vehicle.

An eye mask or face mask incorporating sources of spatially alternating yet static magnetic fields provides magneto-therapy to the eyes and / or face. In one embodiment, an eye mask is provided that has an opaque eye plate and opaque rearwardly projecting cushion about its perimeter. A sheet of alternating magnetic material provides alternating magnetic fields when travel is made in any direction. The eye mask may be attached to the face by elastic straps or other means which may be adjusted for comfort. The perimeter cushion serves to hold the eye mask away from the eyes and projecting eyelashes of the wearer so that greater comfort is achieved. The opaque nature of both the eye plate and the cushion serves to keep light out, allowing the eyes to enjoy a dark environment, especially appropriate for sleep. The eye mask may be worn during lengthy periods of repose such as sleeping. In an alternative embodiment, a face mask incorporating alternating magnetic field forces may have optional eye apertures as well as nose and mouth apertures. Elastic straps serve to hold the face mask to the wearer's face. Alternative embodiments of sources of alternating magnetic fields may be achieved through the use of magnets in a triangular or square checkerboard pattern or alternating patterns of circle-centered toroids having alternating magnetic fields.

A monitoring system monitors and / or predicts drowsiness of a driver of a vehicle or a machine operator. A set of infrared or near infrared light sources is arranged such that an amount of the light emitted from the light source strikes an eye of the driver or operator. The light that impinges on the eye of the driver or operator forms a virtual image of the signal sources on the eye, including the sclera and / or cornea. An image sensor obtains consecutive images capturing the reflected light. Each image contains glints from at least a subset or from all of the light sources. A drowsiness index can be determined based on the extracted information of the glints of the sequence of images. The drowsiness index indicates a degree of drowsiness of the driver or operator.

A system and method are provided for determining eye closure state of the eye of a subject. The system includes a video imaging camera oriented to generate images of an eye of a subject and a video processor for processing the images generated with the video imaging camera. The video processor is configured to detect an eye in the video images' and determine whether the images of the eye are noisy. The video processor processes geometrical and statistical shape of the eye in the images if the eye is not noisy, and processes changes in the size of the eye over time if the images are noisy. The processor further determines eye closure state based on a ratio of horizontal to vertical dimensions.

External ocular shields for protecting a patient's eyes from medical treatment radiation energy such as a laser during a medical procedure. Each shield has an external surface that absorbs energy that hits the shield. The shields are connected to each other by a nose piece, and the nose piece is connected to each shield by a mounting means. The mounting means are positioned perpendicular to the shields and parallel to each other so that the nose piece can pivot upward towards the user's forehead and downward towards the user's chin without altering the fit of the shields over the user's eyes.

A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye, and a video processor for processing the images. The processor includes an edge detector for detecting edges of the eye in the image, and a line selector for generating a plurality of lines at multiple angles representative of the detected edges. The processor determines the state of eye closure, such as eye open or eye closed, based on the number of lines at selected angles. The system may be employed on a vehicle to determine the eye closure of a driver of the vehicle.

An improvement in the security of a logic system from attacks that observable features such as the power supply or electromagnetic radiation, so called, “side-channel attacks”. Specifically, the present invention comprises a technique and method for reducing ability to monitor the relationship between currents in the system and the data in the system by closing the overall clock eye diagram, whilst keeping the eye diagram for connected stages open. The degree of eye closure for connected pipeline stages allows the system to run closer to its maximum operating speed compared to the use of system wide clock jitter, yet the overall closure provides security that is absent from systems with a partially open eye.

The present application discloses a method and device of detecting fatigue driving, comprising: analyzing an eye image in the driver's eye image area with a rectangular feature template to obtain the upper eyelid line; determining the eye closure state according to the curvature or curvature feature value of the upper eyelid line; and collecting statistics on the eye closure state and thereby determining whether the driver is in a fatigue state. The present application determines whether the eyes are opened or closed according to the shape of the upper eyelid, which is more accurate because the upper eyelid line has characteristics of higher relative contrast, anti-interference capacity, and adaptability to the changes in the facial expression.

The present invention generally relates to a method for improving the reliability of a portion of physiological data from an image sensor monitoring an operator positioned in an operator compartment of a vehicle. An embodiment of the method includes receiving, from the image sensor, physiological data including information relating to at least one of eye, face, head, arms and body motion of the operator, identifying an indication of at least an eyelid closure, eye movement or head movement of the operator based on the physiological data; comparing at least one of the physiological data and a lighting condition within the operator compartment with a set of rules for a current operator status; and classifying the type of eyelid closure, eye movement and / or head movement by correlating the identified eyelid closure, eye movement and / or head movement and a result of the comparison.

Any number of transceiver channels is tested for jitter generation / tolerance simultaneously. Tested channels use a serial loopback path to connect a transceiver transmit channel to a transceiver receiver channel. Both the transmitter and receiver PLLs are connected to a common reference clock. The reference clock is modulated with jitter at a frequency below the bandwidth of the transmitter PLL but above the bandwidth of the receiver PLL. The magnitude of eye closure (in an eye diagram), which is equivalent to the amplitude of the jitter, is used to filter out bad transceiver units.

An improvement in the security of a logic system from attacks that observable features such as the power supply or electromagnetic radiation, so called, “side-channel attacks”. Specifically, the present invention comprises a technique and method for reducing ability to monitor the relationship between currents in the system and the data in the system by closing the overall clock eye diagram, whilst keeping the eye diagram for connected stages open. The degree of eye closure for connected pipeline stages allows the system to run closer to its maximum operating speed compared to the use of system wide clock jitter, yet the overall closure provides security that is absent from systems with a partially open eye.

An eye shield assembly is provided for use in conjunction with a hat having a brim. The eye shield assembly includes a frame and a lens mounted to the frame. The opposite sides of the frame are pivotally secured to the hat brim so that the frame is movable between a storage position and an operational position. In its storage position, the lens nests closely adjacent to the brim while in the operational position, the lens depends generally perpendicularly downwardly from the brim.

A disposable, laser-resistant eye patch includes at least one sheet member and a metallic layer attached to the sheet member. The eye patch may include two sheet members, with the metallic layer interposed between the sheet members. The eye patch preferably has adhesive applied on a peripheral portion of the eye patch for attaching the eye patch to a wearer's face. The eye patch is preferably sized to fit entirely within the eye socket of a human eye.

Unit composed of helmet and goggles, comprising a helmet cap and an eye protection element that is configured so as to be placed in front of the wearer's face. The upper edge of the eye protection element is adapted to the profile of the lower front edge of the helmet cap. A magnetic device is arranged on the two edges and has a first series of permanent magnets which are rigidly connected to one of the two edges and interact, by magnetic attraction, with complementary elements that are provided on the opposite edge. This front magnetic connection area between the two edges furthermore comprises tilt orientation means of the goggles for adjusting the contact with the face.

The utility model relates to a detection method of eye state based on cascade sort and Hough circle transform, belonging to the field of pattern recognition, which is characterized in the following steps: to acquire a face image; to carry out skin color segmentation in the YCbCr color space to acquire the position information of the skin color area using an ellipse skin model; to detect the rectangular eye area with the method of eye detecting window traversal with a cascade eye classifier; to merge a rectangle by rectangular merge method to get a merged eye rectangular linked list; to operate edge detection and binarization in turn on every rectangular eye area in the merged eye rectangular linked list with a Sobel operator to get an binary image; to detect the eye state of every binary image in turn with horizontal projection method; to further detect the eye state by Hough circle transform detection method if whether the present state is eye closure is not certain. The utility model increases the speed of eye detection, tracks and analyzes the eye state with the skin color segmentation, which is suitable for attention detection and fatigue detection.

A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye, and a video processor for processing the images. The processor includes an edge detector for detecting edges of the eye in the image, and a line selector for generating lines at any of select angles representative of the detected edges. The processor determines the state of eye closure, such as an open eye or closed eye, based on an angle between two of the lines that select angles. The system may be employed on a vehicle to determine the eye closure state of a driver of the vehicle.

In accordance with the present invention an anesthesia delivery device is disclosed for use on a patient having a mouth and a nose having a naris. The delivery device is capable of being coupled to a ventilation system having an inspiratory gas input for delivering gas to the patient and an exhaust gas output for delivering gas from a patient to the ventilation system. The anesthesia device includes an inspiratory gas line having a machine end and a patient end. The machine end is capable of being fluidly coupled to the inspiratory gas input of the ventilation system, and the patient end is configured for being received within the naris of the patient for delivering inspiratory gas to the naris of the patient. The device also includes a face mask having a dome portion sized to cover the patient's nose without covering the patient's mouth. The dome portion defines an inside air space between the patient's nose and the dome portion, and an outside air space exterior of the dome portion. A vent is provided for allowing gas to pass between the inside air space and the outside air space. An exhaust port is provided that is capable of being fluidly coupled to the exhaust gas output of the ventilation system for allowing gas to pass from the inside air space to the exhaust gas output of the ventilation system. The exhaust port and vent are capable of cooperatively exerting a negative pressure on the outside air space adjacent to the face mask for preventing inspiratory gas from entering the outside air space adjacent to the face mask.

An eye-protective shade for the AR (Augmented Reality) smart glasses is provided, including: an eye protection unit disposed in front of the AR smart glasses, wherein the eye protection unit is disposed with a pair of shading portions capable of filtering light, and the pair of the shading portions respectively correspond to a pair of semitransparent display portions disposed on the AR smart glasses, and the pair of shading portions are made of translucent material and / or opaque material; when reading digital information by use of the eye-protective shade along with the AR smart glasses, the eye-protective shade protects the user's eyeballs and the macula from direct light radiation while the peripheral retina is continuously in contact with external light sources. The present disclosure can change the user's reading habits and moderate visual fatigue when reading.

A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye. The system also includes a video processor for processing the images generated with the video imaging camera. The processor includes an edge detector for detecting edges of the eye in the image and a line selector for generating substantially horizontal first and second lines representative of the detected edges. The processor determines the state of eye closure, such as eye open or eye closed, based on distance between the first and second lines. The system may be employed on a vehicle to determine the eye closure of a driver of the vehicle.