73 results about "Palpebra inferior" patented technology

The invention discloses an iris splitting method suitable for low-quality iris images. The prior art can not carry out robust splitting to the low-quality iris image with mass interference and noise. The invention uses a human eye detection algorithm to preliminarily determine a subimage of the human eye and is applied to image splitting based on interdependent histogram and cluster and ellipse Hough conversion to accurately determine the subimage of the human eye; improved Hough conversion is adopted to position the outer contour of the iris and output the integrodifferential operator value CID of a detection result; if the outer contour of the iris is not accurately positioned, parabola approximation is carried out on the image to judge whether the image is an eye-closed image; for the non eye-closed image, complexion information is utilized to re-determine the outer contour of the iris; the palpebra superior is detected by one-dimensional signal detection and parabola integrodifferential operator; the palpebra inferior is detected by one-dimensional signal detection and an RANSAC algorithm; the histogram in the iris is calculated; and a threshold value is found to remove a highly bright spot. The invention is used for iris splitting of low-quality iris image in a complex application context.

A manual device for massaging one or both of the upper and lower lids of the eye, the device comprising: a body, composed of flexible resilient biocompatible material, wherein the body provides jaws or lips, wherein the lips are biased into a spaced relationship by the material of the body, and wherein each lip is adapted to engage either the upper or lower eyelid, such that movement of the lips causes movement of at least one eyelid with respect to the other. The devices can conveniently be used to manipulate the meibomian glands of the eye in an optimum orientation, for example for alleviating or treating dry eye.

The invention discloses a method for assessing facial apparent ages and facial aging degrees and an application thereof. The method comprises the following steps of: (1) collecting facial photos of a plurality of interviewees; (2) carrying out length calibration and analysis on the photos to obtain values x1 and x3, or values x2 and x4, or values x3 and x4, or values x1 and x2 or values x1, x2, x3 and x4, wherein x1 is a distance from a starting point to the upper edge of the palpebra inferior, x2 is a distance from an intersection point of a line 3 and a line 4 to the labial midline, x3 is a degree of an included angle between a line 1 and a line 2, and x4 is a degree of an included angle between the line 3 and the line 4; (3) carrying out regression model analysis according to the practical ages y' of the interviewees and the values x1, x2, x3 and/or x4; and (4) calculating the facial apparent ages y of the assessed according to an obtained regression equation. The method is capable of quantitatively assessing the facial apparent ages and aging degrees of people in different regions, particularly the Asian people, and is good in reliability.

The invention discloses a conjunctival sac flushing and collecting system. The invention provides the technical scheme points that the conjunctival sac flushing and collecting system comprises an eyewashing cover, a fluid storage device and a flushing pipe, wherein the eye washing cover comprises a top plate and a side wall; the side wall is arranged along the side edge of the top plate; the sidewall and the top plate form a holding cavity for holding an eye part of a human body; an elastic fixing band is arranged on one surface, back on to the holding cavity, of the side wall; one end of the water flushing pipe communicates with the inside of the fluid storage device; the other end of the water flushing pipe stretches into the holding cavity; a valve for controlling flushing fluid to flow is arranged on the water flushing pipe; and a drain outlet is formed in one end, close to an ear side of the human body, of the side wall. The conjunctival sac flushing and collecting system is further provided with an eyelid opener, wherein openings are formed in the parts, corresponding to an upper eyelid and a lower eyelid of the human body, of the side wall; the eyelid opener comprises twoeyelid opening arms stretching into the openings; an operation port is formed in the top plate; and a seal cover for covering the operation port is further hinged onto the top plate. In the use process of the conjunctival sac flushing and collecting system provided by the invention, the flushing fluid is ensured to be concentrated at a conjunctival sac part of a patient, and the upper eyelid and the lower eyelid are held apart through the two eyelid opening arms, so that the exposure area of the conjunctival sac is increased.

The invention belongs to the field of ophthalmic examination, and relates to an eyelid opening device for an ophthalmic examination patient, which comprises a shell, a turntable motor is fixedly arranged on the lower side wall of the shell, a device turntable is fixedly arranged at the output end of the turntable motor, an opening cavity is fixedly arranged on the device turntable, an eyelid opening device is arranged in the opening cavity, is used for opening the upper eyelid and the lower eyelid of a to-be-detected person, and comprises a clamp rotating shaft rotationally arranged on the lower side wall of the opening cavity. The eyelid opening device is arranged on ophthalmologic examination equipment, when a patient needs to examine eyes, the upper eyelids and the lower eyelids of thepatient are separated, the ophthalmologic examination cannot be affected by physiological blinking and resisting factors, and meanwhile, the eyes of a to-be-detected person are wetted; the discomfortcaused by excessive dryness, tear and the like due to long-time no blinking is avoided, the eyelid clamp is automatically disinfected after each person is examined, and cross infection is avoided.

The invention relates to eye parameter detection equipment which comprises a high-definition camera, an image detection device and a single chip computer AT89C51, wherein the high-definition camera is used for shooting the face of a detected person so as to obtain a detected face image, the image detection device is connected with the high-definition camera and is used for performing image processing on the detected face image, the single chip computer is connected with the image detection device, and is used for determining a plurality of eye parameters based on the image processing results of the image detection device, and the plurality of eye parameters include a pupil position and a palpebra superior and palpebra inferior distance. Through the eye parameter detection equipment, the plurality of eye parameters of the detected person can be fast and accurately detected, and thus a relatively large quantity of valuable reference data can be providing for judgment on the fatigue state judgment, identity recognition or image retrieval of subsequent detected persons.

The invention relates to the technical field of medical instruments and discloses a flusher capable of holding the upper eyelid and the lower eyelid apart for ophthalmic nursing. The flusher comprisesa fixed rod and a movable rod; the upper end connecting rod and the lower end connecting rod are connected with first arc-shaped metal strips; the outer side of the first arc-shaped metal strip is slidably connected with an upper extrusion block; the upper end of the upper extrusion block is connected with a guide ring; the lower side of the first arc-shaped metal strip is provided with a secondarc-shaped metal strip; the second arc-shaped metal strip is connected with a lower extrusion block; the right side of a second adjusting bolt is provided with a variable resistor; and the right sideof the movable rod is provided with a metal ball. The first adjusting bolt drives the first thread and the second thread to move in the upper adjusting frame and the lower adjusting frame respectively, the sliding rod is guided to move in the sliding sleeve, the sliding rod drives the metal strips to deform and move in the same direction, the metal strips drives the upper extrusion blocks to move,and the structure solves the problem that an existing distraction device cannot evenly spread the eyelids and the eyes are prone to being injured.

The embodiment of the invention discloses an eye key point labeling method and device and a training method and device for an eye key point detection model. The eye key point labeling method comprisesthe steps of obtaining a face image and a marked eyelid curve corresponding to the face image; for each marked eyelid curve, based on a mathematical integration principle, integrating the marked eyelid curves, and determining a first curve length of a labelled upper eyelid curve and a second curve length of a labelled lower eyelid curve in the labelled eyelid curves; determining a plurality of eyelid points to be utilized from the labeled upper eyelid curve and the labelled lower eyelid curve; based on the first curve length of the labelled upper eyelid curve, the second curve length of the labelled lower eyelid curve, the eyelid point to be utilized and a preset equal division point number, determining the equally-divided upper eyelid points and the equally-divided lower eyelid points from the labelled upper eyelid curve and the labelled lower eyelid curve respectively, and then determining the eye key points corresponding to each face image by combining the labelled eyelid points. The eye key points with obvious semantic features are labelled, and the marking efficiency is improved.

The invention discloses a soft device and method for opening eyelids. The device comprises a head supporting module, an eyelid real-time positioning module, a robot end effector real-time positioning module and an eyelid automatic opening operation module. The head supporting module is used for supporting the head of a user. The eyelid real-time positioning module identifies and positions the real-time poses of upper and lower eyelids of the user in real time. The robot end effector real-time positioning module is used for reconstructing the real-time form and pose of a robot soft end effector. The eyelid automatic opening operation module comprises a robot body and a robot control system, and the robot body is provided with a multi-axis rigid mechanical arm and the soft end effector. The robot control system takes the real-time poses of the upper and lower eyelids of the user as a moving target, and takes the real-time form and pose of the soft end effector as feedback information to control the robot body to move so as to automatically open the eyelids. On the premise of ensuring the comfort and safety of the user, the eyelid opening operation can be quickly, accurately and automatically completed.

The invention discloses an eyelid positioning method based on strong direction weighted edge detection and RNL goodness of fit. An existing straight line fitting positioning method is high in positioning speed but low in positioning precision. The parabola fitting positioning method is high in fitting positioning precision, but low in positioning speed. The method comprises the following steps: segmenting upper and lower eyelids according to an iris circle center position, and determining upper and lower eyelid areas; secondly, preprocessing an image before eyelid detection by using a strong direction weighted edge-preserving denoising smoothing filtering operator; secondly, suppressing eyelash interference by using a strong direction weighted edge detection operator, and dynamically selecting edge detection operator parameters according to gray scale contrast values of regions above and below the eyelid edge in the iris image to obtain candidate eyelid edges to be fitted; and finally,fitting eyelid edges by adopting a least square method parabola, and screening eyelid edge selection points by taking RNL goodness of fit as an index to finish eyelid positioning. The method has goodrobustness, and an ideal positioning result can be obtained even for an upper eyelid which is shielded by eyelashes.

The invention discloses an eye plastic surgery evaluation method based on an eyelid curvature graph, the method is realized through a 3D camera, an image analysis unit and an algorithm unit, the 3D camera is used for collecting front surface images of upper and lower eyelids of a left eye and a right eye; the image analysis unit is used for identifying eyebrow and upper and lower eyelid boundaries; the algorithm unit is used for calculating data obtained by the 3D camera and the image analysis unit to obtain an eyelid curvature graph, and the eye plastic surgery is evaluated through the eyelid curvature graph.

The embodiment of the invention discloses a personnel state detection method and device based on head information, and the method comprises the steps: detecting the two-dimensional position information of human face feature points in a face from a human face image comprising the face of a target person, and the human face feature points comprise the eyelid feature points of upper and lower eyelidsin the face; constructing a target three-dimensional face model corresponding to the target person based on the two-dimensional position information of the face feature points and a preset three-dimensional face model, wherein the target three-dimensional face model comprises upper and lower eyelids of human eyes constructed based on the eyelid feature points; determining current posture information of the head of the target person based on the target three-dimensional face model and/or the face image; based on the three-dimensional position information of the upper eyelids and the lower eyelids in the target three-dimensional face model, determining the current opening and closing length between the upper eyelids and the lower eyelids of the human eyes; and determining the current stateof the target person based on the current attitude information and the current opening and closing length, thereby improving the accuracy of the detection result of the current state of the target person.

A mask sealing face frame comprises a frame sleeve, a supporting frame and a hanging rope. The sealing face frame is characterized in that the frame sleeve comprises an upper frame, a side frame, a middle frame and a lower frame; the upper frame is positioned above the nose bridge and at the lower eyelid; the two ends of the frame sleeve are connected with the side frame, the side frame is locatedon the two sides of the cheek, the upper side and the lower side of the side frame are connected with the upper frame and the lower frame respectively, the middle frame is located between the mouth and the nose, the two ends of the middle frame are connected with the side frame, the lower frame is located at the jaw and supports the jaw, and the two ends of the lower frame are connected with theside frame; the upper frame, the side frame, the middle frame and the lower frame are fixedly connected or separately connected to form a frame sleeve; the hanging rope is connected with the frame sleeve; the earphone is hung behind ears or brains; the shape of the frame sleeve is matched and coincided with the shape of the facial skin, the frame sleeve is pressed on the periphery of the mask, theperiphery of the mask is in close contact with the facial skin under the tensioning effect of the hanging rope, and air leakage is prevented; the supporting frame is placed on the mouth and nose portion of the face to support the mask fabric, a ventilation space is formed in the mouth and nose portion of the face, the upper frame of the frame sleeve comprises an outer wrapping layer and a framework, the outer wrapping layer wraps the periphery of the framework, the frame, the middle frame, the lower frame and the outer wrapping layer are made of elastic materials, and the framework and the supporting frame are made of plastic or metal materials. Due to the fact that durable materials are adopted, the frame sleeve and the supporting frame can be repeatedly used, and consumables are saved.

The invention discloses a blinking data statistical method and device, a computer readable storage medium and electronic equipment. The method comprises the steps: obtaining video data containing eye movement in a preset time period, recognizing each frame of image of the video data, obtaining a target region between an upper eyelid and a lower eyelid, calculating the palpebral fissure height corresponding to the target region, and according to the palpebral fissure height, determining the opening and closing state of the target region; finally, according to the opening and closing state of the target region of all frame of images in the video data, performing statistics to obtain blinking data in a preset time period; and namely, obtaining the target region by automatically obtaining the video data within the time period and identifying each frame of image in the video data, and determining the opening and closing state according to the palpebral fissure height, so that the blinking data is counted, the difficulty of data statistics is reduced, the palpebral fissure height is calculated by automatically identifying the target region, the blinking data can be accurately obtained, and an accurate data basis is provided for subsequent pre-judgment.

The invention provides a fatigue driving detection method and device, and belongs to the technical field of information processing, and the method comprises the steps of obtaining first related information of a target object, the first related information comprising at least one of the size of an eyeball surrounded by an upper eyelid and a lower eyelid, the posture of a human body, and the position of the human body, the first related information being obtained according to first information detected by a millimeter wave radar module, and the millimeter wave radar module being arranged in front of the target object; and judging whether the target object is in a fatigue driving state or not according to the first related information. The detection scheme provided by the invention is not influenced by light rays, and the detection precision is high.

Controllers for dry eye treatment apparatus and methods are described herein which generally comprise a patch or strip affixed to the skin of the upper and/or lower eyelids to deliver heat to the one or more meibomian glands contained within the underlying skin. The treatment strip or strips include one or more strips configured to adhere to an underlying region of skin in proximity to one or both eyes of a subject such that the one or more strips allow for the subject to blink naturally without restriction from the one or more patches. A controller is in communication with the one or more strips and is programmable to monitor a temperature of the one or more strips to provide a treatment therapy above a threshold temperature of, e.g., 39° C., and below a maximum temperature of, e.g., 48° C., over a treatment period of 12 minutes.

The invention discloses an Airy beam coherent elastography upper and lower eyelid adjusting device for conjunctiva detection, and relates to the technical field of ophthalmology department auxiliary devices, the Airy beam coherent elastography upper and lower eyelid adjusting device comprises a fixing frame, an Airy beam mechanism, a fine adjustment mechanism, a connection moving mechanism and a mounting frame, an adjusting opening mechanism and an Airy beam mechanism which are matched with each other are arranged in the fixing frame through a linkage mechanism, and a fine adjustment mechanism is arranged at the top of the fixing frame. According to the eyelid distraction device, the adjusting distraction mechanism, the linkage mechanism and other structures are arranged, the adjusting distraction mechanism and the Airy beam mechanism synchronously move under the action of the linkage mechanism, the output end of the Airy beam mechanism is initially located at the center point of the adjusting distraction mechanism, and therefore after the upper eyelid and the lower eyelid are supported to be open through the adjusting distraction mechanism, the upper eyelid and the lower eyelid can be distrained. The Airy beam mechanism can accurately capture eyes, and the examination effect of the Airy beam mechanism is greatly improved.

An eyelid supporting device with a safety protection function for the ophthalmology treatment comprises two mounting strips and four supporting hooks. The two end faces of the two mounting strips are fixedly connected with bandages, the opposite faces of one ends of the two mounting strips are fixedly connected with screw shafts, the opposite ends of the two screw shafts are connected with the two ends of a screw sleeve in a threaded screwing and sleeving mode correspondingly, the threaded screwing directions of the two screw shafts and the screw sleeve are opposite, a pair of mounting grooves is formed in the upper surface of each mounting strip, a push plate is elastically connected into each mounting groove, and an eye drop bottle is arranged in each mounting groove and located on one side of the push plate. According to the invention, the upper eyelid and the lower eyelid can be opened through the device so that observation and treatment of a doctor can be facilitated, the device can be fixed to the head of a patient, the problem that due to misoperation, the device shifts to cause eye injuries is solved, and eye drops can automatically permeate into the eyes so that the eyes can be kept moist.