45 results about "Oculus" patented technology

An optical image measuring device which can form a highly reliable image even if an object moves during scanning of a signal light is provided. An optical image forming device 1 comprises: an interferometer that splits a low coherence light L0 into a signal light LS and a reference light LR and generates an interference light LC by overlaying the signal light LS reflected by a fundus oculi with the reference light LR reflected by a reference mirror 14; a CCD 34 which receives the interference light LC and outputs a detection signal; Galvanometer mirrors 22 and 23 to scan the signal light LS in a main scanning direction and a sub-scanning direction; and a computer 40 forming tomographic images G1 to Gm along the main scanning direction at different positions of the sub-scanning direction. The Galvanometer mirrors 22 and 23 scan the signal light LS in a given direction crossing the main scanning direction, and the computer 40 forms a tomographic image for correction GR along the given direction to correct displacement of each topographic image Gi based on the tomographic image for correction GR.

The invention discloses a free-space head-wearing eye-tracking system. The free-space head-wearing eye-tracking system comprises a head-wearing video collection device, a unit for evaluating the binocular optic axis through stereoscopic vision and a binocular vision and fixation point evaluation unit; the head-wearing video collection device collects four ways of near-infrared eye video and one way of scene video simultaneously, and the four ways of the near-infrared eye video comprise two ways of the near-infrared eye video of the left eye of a wearer who wears the head-wearing video collection device and two ways of the near-infrared eye video of the right eye of the wearer who wears the head-wearing video collection device; coordinates of pupils of both eyes and cornea center are evaluated directly through a stereoscopic vision method, and a binocular optic axis straight line equation is calculated; a binocular visual axis straight line equation is evaluated according to an eyeball Kappa angle and the binocular optic axis straight line equation, a fixation point coordinate is calculated, the position of a fixation point in the scene video is mapped and marked, and the Kappa angle is a fixed included angle between the optic axis and the visual axis of each eyeball.

One moveable goal detecting equipment and method based on artificial compound belongs to artificial compound moveable goal detecting system. It relates to camera, outline border, standing pole, Yunnan and DSP processor. The moveable goal detecting method uses moveable goal division arithmetic to pick up and identify moveable goal form the video frequency picture having moveable goal. The dynamic and static state parameter testing method uses some cameras to screen the moveable goal to calculate the coordinate under the appointed world coordinate system and draw the movement track and speed. The moveable goal tracking method is about dividing up the dynamic and static state parameter of moveable goal to judge its movement trend, and run Yunnan to follow moveable goal by serial port. The panorama creating method takes the method gray-level relativity method and put multi-way overlap pictures together one large-scale seamless picture. It owns large watch field, high distinguish rate and delicacy rate.

The invention discloses a standardized eye image based eye gaze tracking system and method. The system comprises three or more than three infrared sources and an infrared camera. The three or more than three infrared sources are used for forming corneal reflex light spots on a cornea. The infrared camera is arranged at any point of the periphery of a target screen, and is used for capturing an eye image of a user. According to the method, an eyeball mark point position in a current eye image is changed into an eyeball mark point position in the standardized eye image, the position of a viewpoint in the target screen is solved through transformation of the eyeball mark point position in the standardized eye image, so that eye gaze tracking can be performed. In the conventional eye image information based eye gaze tracking method, the eye gaze tracking is inaccurate due to head moving, complicated hardware devices are required, and more fixed points are required. Through adoption of the system and method, the above problems in the prior art are overcome effectively.

The invention discloses a technology of VR scene conversion controlled by human eyes, and belongs to the technical fields of display and demonstration. The device consists of an infrared light source, infrared light detection equipment, a control processing chip and a pair of VR glasses. By checking the eyeball position change of human eyes, the device controls VR scenes along with the change, so that the problem that the mode of scene conversion is controlled by turning the head is solved to a certain extent. The problem that a user cannot control the conversion of VR scenes or feel the change when the VR scenes are observed at different angles by turning the head is solved, the demonstration area is small, the device has flexibility and movability, showroom display can be effectively utilized, and the device is an interactive display device used for entertainment and scientific knowledge learning of people at public places such as science and technology museums.

The invention relates to a bionic mechanical eyeball comprising an eyeball and a cylindrical casing, wherein an inner cavity of the eyeball is provided with a CCD camera, and two steering engines arerespectively installed in the inner cavity at the back part of the cylindrical casing by a steering engine installation rack and respectively drive the eyeball to carry out right-and-left and up-and-down transmission by a transmission mechanism. The invention has three freedom degrees and realizes the simulation of the movement of single eye of a person basically. The visual angle of the mechanical eyeball reaches 40 degrees, and the control accuracy is 0.5 degrees. The invention has compact structure and high control accuracy.

The invention discloses a human eye positioning method and device which are used for solving the problem that in the prior art, human eye positioning can not be conducted on a low-resolution face image. The invention further provides a human eye region positioning method and device which are used for solving the problem that in the prior art, human eye region positioning is poor in robustness with interference from glasses and eyebrows. The human eye region positioning method comprises the steps that a left eye region and a right eye region of a face grayscale image are determined; according to horizontal grayscale integral projection, vertical grayscale integral projection, horizontal gradient integral projection and vertical gradient integral projection of the obtained left eye region, the position of the center of a left eyeball in the left eye region is determined; according to horizontal grayscale integral projection, vertical grayscale integral projection, horizontal gradient integral projection and vertical gradient integral projection of the obtained right eye region, the position of the center of a right eyeball in the right eye region is determined.

The invention discloses a panoramic view imaging method for realizing ophthalmonogy prosthomere by UBM. Firstly, at least four continuous pictures with two adjacent pictures mutually overlapped are obtained along the cornea longitude direction by linear UBM; then a whole eyeball prosthomere picture is spliced with the pictures by image filtering, binarization, lines clustering, joint location searching and image fusion. The method has the image precision of linear UBM, at the same time, the eyeball prosthomere panoramic view imaging is realized.

A display unit 11 has a display area of a predetermined shape and displays an image on the display area. An image capturing unit 12 generates data of a captured image by capturing an image of an eye 2 of a user in which the display area is reflected. A reference detection unit 21 detects a moving reference point that moves along with the movement of user's eye-gaze and an unmoving reference point that can be assumed as approximately stationary regardless of the user's eye-gaze movement, and generates a vector drawn from the unmoving reference point to the moving reference point as a shift amount V(x,y). An eye-gaze detection unit 22 detects a movement vector [Delta]V([Delta]x,[Delta]y) as the user's eye-gaze movement amount based on a reference shift amount Vo(xo,yo) generated in the past and the shift amount V(x,y) currently generated.

The invention relates to a human facial expression simulating robot. The human facial expression simulating robot comprises a supporting bottom plate, a neck mechanism, a mouth mechanism, an eye mechanism, an eyelid mechanism and an eyebrow mechanism, wherein the bottom part of the neck mechanism is fixed to the supporting bottom plate; the mouth mechanism comprises an upper jaw supporting plate,an upper lip mechanism, an angulus oris mechanism, a lower lip mechanism, a chin mechanism and a lip; the upper lip mechanism, the angulus oris mechanism, the lower lip mechanism and the chin mechanism are arranged on the upper jaw supporting plate and are correspondingly connected to an upper lip driving point, an angulus oris driving point and a lower lip driving point of the lip; the mouth mechanism is fixed to the top part of the neck mechanism through the upper jaw supporting plate; the eye mechanism is arranged on the upper jaw supporting plate and enables the rotating of eyes; the eyelid mechanism is arranged on the eye mechanism and enables blinking and eye closing actions; and the eyebrow is arranged on the eye mechanism and enables frowning and eyebrow raising actions of the eyebrows. The human facial expression simulating robot realizes a plurality of simulated human facial expression.

The invention relates to a double eyelid eye part movement mechanism of a bionic robot, which comprises a bottom plate, a left eyeball, a right eyeball, an upper eyelid and a lower eyelid, wherein a rotating shaft is installed above the bottom plate, the two eyeballs are hinged with the rotating shaft and can axially swing along the rotating shaft, and an eyeball up-and-down movement mechanism installed on the bottom plate drives the rotating shaft to rotate so as to realize the up-and-down movement of the eyeballs; an eyeball left-and-right rotation mechanism installed on the rotating shaft drives the eyeballs to axially swing along the rotating shaft so as to realize the left-and-right movement of the eyeballs; and the upper eyelid and the lower eyelid are connected with the rotating shaft in a rotary way, and an eyelid movement component installed on the bottom plate drives the upper eyelid and the lower eyelid to move in opposite directions so as to realize the opening and the closing of the upper eyelid and the lower eyelid. The invention can realize abundant and more vivid eye part actions, can be used as a man-machine interactive research platform for installation and has simple structure and low manufacturing cost.

A visual aid for using contact lenses comprises an eyeball and a cover that contains the eyeball, and a model contact lens. The eyeball includes a sclera, an iris and a pupil. The cover includes an upper eyelid and a lower eyelid that can be opened and closed. The visual aid also includes a simulated contact lens that can be placed between the eyelids and the eyeball for demonstrating the proper insertion and wearing of contact lenses. The eyelids simulate natural movements of human eyelids. Additionally, methods for using the visual aid for using contact lenses for instruction in insertion, and removal, of contact lenses from the eye are described.

The embodiment of the invention discloses a method of managing a menu in a virtual reality environment and virtual reality equipment, can avoid the problem of picture interference caused by touching a menu button during menu display, and strengthens the immersion of virtual reality. The method comprises the steps that the virtual reality equipment detects the position of the optical center a wearer; when the virtual reality equipment determines that the optical center moves to a preset area of a display interface of the virtual reality equipment according to the position of the optical center, the virtual reality equipment acquires the eyeball information of the wearer; if the virtual reality equipment determines that eyeball information meets a preset requirement, the virtual reality equipment displays the menu of the virtual reality equipment.

The invention belongs to the technical field of intelligent bionic robots, and particularly relates to a kind of nine-degree-of-freedom binocular bionic eyes. According to the technical scheme adopted by the invention, the nine-degree-of-freedom binocular bionic eyes comprise binocular bionic eyes and a neck mechanism, wherein the binocular bionic eyes are composed of a left eyeball mechanism and a right eyeball mechanism; the left eyeball mechanism comprises a camera which is arranged in an eyeball and can automatically rotate, a first motor used for controlling the eyeball to move left and right and a second motor used for controlling the eyeball to move up and down; the left eyeball mechanism is mounted on a bracket; the right eyeball mechanism and the left eyeball mechanism are the same in structure, and are mounted on the bracket in a mirror-symmetry mode; the neck mechanism comprises a third neck motor used for driving the binocular bionic eyes to carry out rotational motion, a first neck motor used for driving the binocular bionic eyes to carry out up-down pitching motion, and a second neck motor used for driving the binocular bionic eyes to swing left and right. The nine-degree-of-freedom binocular bionic eyes can be utilized to realize all-scene visual information acquisition.

LCD 140 is provided for displaying an internal fixation target for fixating an eye E. Projection optical system (a part of an imaging optical system 120) is provided for projecting the displayed internal fixation target onto the a fundus oculi Ef. Image forming part 220 is provided for forming 2-dimensional images (images of fundus oculi) Ef of the surface of fundus oculi Ef. Display part 240A is provided for displaying images of fundus oculi Ef. Operation part 240B is provided for specifying the position of the displayed images of fundus oculi Ef. Main controller 211 is provided for changing the projection position of the internal fixation target on the fundus oculi by changing the display position of the fixation target by the LCD 140 based on the specified position. The image forming part 220 forms tomographic images of the fundus oculi Ef with the internal fixation target projected.

The present invention relates to a pork intramuscular fat content nondestructive testing method based on computer vision. The method comprises the steps of adopting a camera calibration method to calibrate a CCD digital camera, selecting the pork musculi oculi just now purchased from a slaughter house as an experiment sample, shooting and sampling the cross-section of the pork musculi oculi, carrying out the pre-processing on an obtained sample image via an improved sample block repair method, and recovering the original information of a light reflection area of the image; combining a maximum entropy method and an iteration method to carry out the image segmentation on the pre-processed musculi oculi image, and extracting the pork marbling; extracting 291 characteristic values, such as a fat number index, a fat distribution index, a fat texture index, etc., from an obtained marbling image, establishing a pork intramuscular fat content prediction model according to the characteristic values and a chemical method detection result, and finally predicting the pork intramuscular fat content via the model. By utilizing the method of the present invention, the pork intramuscular fat content can be predicted very well, and the pork nutrition detection is more objective, more accurate and more efficient.

The invention discloses an electric water heater and a control method thereof. The electric water heater comprises a body, a display screen arranged on the body, a camera arranged on the body and used for photographing a face image of a user, an image recognition unit arranged in the body, a driving mechanism arranged on the body and a central control unit arranged in the body, wherein the image recognition unit is connected with the camera and used for recognizing the included angles between eyeballs of the user and the camera according to the face image of the user, and the central control unit is used for controlling the driving mechanism to enable the display screen to rotate to the angle matched with the eyeballs of the user according to the included angles between the eyeballs of the user and the camera. The electric water heater can intelligently recognize the positions of the eyeballs of the user and rotate the display screen to the position right facing the eyeballs of the user according to the positions of the eyeballs of the user so that users of different heights can comfortably check the content of display screens on electric water heaters at different mounting heights, and user experience of the users can be improved.

The invention provides a bionic eye device capable of achieving any-angle watching and three-dimensional reconstruction and bionic eye equipment. The bionic eye device comprises a bionic eyeball frame provided with a spherical containing space, a bionic eyeball wall suspended in an opening of the bionic eyeball frame, a bionic eyeball arranged in the bionic eyeball wall in a sleeved mode, a camera, a rotation motor, a stepping motor and a runner, wherein the bionic eyeball, the bionic eyeball wall and the bionic eyeball frame are concentric; the camera, the rotation motor, the stepping motor and the runner are sequentially arranged in the bionic eyeball from outside to inside through a diameter shaft; the runner is fixedly connected to the stepping motor through a gear, and the stepping motor is arranged on a motor shaft of the rotation motor in a sleeving mode; the stepping motor drives the runner to move on the inner wall of the bionic eyeball frame so as to control the rotation distance of the runner; the rotation motor drives the stepping motor and the runner to rotate around the diameter shaft to control the orientation of the runner. The rotation motor and the stepping motor operate in a coordinated mode to drive the bionic eyeball to move in the bionomic eyeball wall around the ball center, and any-angle rotating, watching and three-dimensional reconstruction of the bionic eyeball are achieved.

The invention discloses a method and apparatus for generating an eye image. The method comprises: an eye model for generating an eye image is obtained, wherein the eye model includes an eyeball portion for expressing the eyeball in the eye; picture pasting is carried out on the eyeball surface of the eyeball portion in the eye model, wherein the pasted picture is used for simulating the uneven texture of the retina surface in the eye; and rendering is carried out on the eye model after picture testing to obtain an eye image. Therefore, a technical problem that the eyes of the role are not vivid in an online game can be solved.

The invention discloses a visual interaction method, system and device. The method comprises following steps: step 1. identifying an image of a user eyeball and locating the central position of pupil in the image by image preprocessing; step 2. calibrating: several bright spots appear in turn on a screen, and a user watches each bright spots as it appears, a system photographing the eyeball at the moment; establishing corresponding relationship between the position coordinate of each bright spots and the image of pupil position when the user watches the bright spots so as to achieve real-time display of the staring position of the pupil on the screen and achieve visual tracking; step 3. identifying whether the mapping position of the pupil on the screen and the position of the interactive icon in the screen coincide, and then determining whether to activate the icon. The technical effects that can be achieved by the present invention are as follows: the user experience in the VR experience can be improved, the response speed of the computer can be improved, the UI icon can be selected by user sight, and the screen texture of the interaction interface can be improved.

The invention discloses an eyeball parameter calibration and sight line direction tracking method based on a three-dimensional eyeball model, and the method comprises the following steps: S1, fixing acharacter viewpoint in a three-dimensional space, shooting a face video, calibrating eye parameters of a character through the face video, and estimating the position of the character viewpoint at the same time; and S2, calculating viewpoint positions in any other facial videos of the character by utilizing the eye parameters to obtain a sight line direction, and tracking the sight line direction. According to the method, an energy function is established by utilizing a corresponding projection relation between a three-dimensional eyeball model and an eye image, eye parameters are calibrated,a sight line direction model closer to a real condition is established, and high-precision sight line direction tracking is realized.

The invention discloses an electronic device. The electronic device comprises a light transmission part, used for receiving reflected light formed by reflection through eyes of a user, wherein emergent light is output after the reflected light is transmitted in the light transmission part; and an imaging component, used for receiving the emergent light and forming a first image at least containing the eyes of the user. Through the technical scheme, the technical problem of low precision of eyeball tracking based on an obtained human eye image by an electronic device in the prior art is solved.

The present invention provides an image processing method used for segmenting and grading a beef musculi oculi marbling. The image processing method provided by the present invention concretely comprises the steps of segmenting a cattle carcass musculi oculi section image; extracting the marbling in a beef musculi oculi area; and grading the beef musculi oculi marbling. The image processing methodof the present invention is a method of automatically segmenting the beef musculi oculi, extracting the marbling in the musculi oculi and grading the marbling objectively and efficiently based on thecomputer vision and image processing technologies, by grading the quality of the beef automatically, solves the problems that a conventional artificial grading method has the subjectivity and the inconsistency, the grading cost is high, the efficiency is low, etc., is suitable for but not limited to the beef production enterprises and the quality detection departments, and has the good market application prospect.

The present invention discloses a correction method for preventing and controlling myopia and refractive error based on a tension adjustment mechanism. A myopia preventing and controlling method and arefractive error correction method are given cutting from an eye adjustment mechanism, particularly, based on an effect of the tension adjustment mechanism on an axis oculi growth. The provided tension adjustment mechanism is as follows: tension adjustment (TA) is used as a base point, far-looking is looking at visual objects outside the base point to an infinity point, near-looking is looking atvisual objects inward the TA base point to before eyes, and abnormal biochemical changes of sclera caused by deformation of adjustment of crystalline lens are main factors pushing excessive axis oculi growth. Based on the tension adjustment, the correction method creatively states mechanisms of occurrence and development of the myopia different from the past, points out a theoretical shortcomingthat the current preventing and controlling of the myopia do not produce expected results, and brings new ways and expectations for the preventing and controlling of the myopia.

This invention provides a stereo image displaying method and eyesight recovery apparatus which stimulates the eye muscles and is inexpensive and simple.An image for the left and the right eye are displayed on the screen 50 of an electronic device 2 alternately, an observer wears spectacles 4 which open and close in synchronism with the display of these images to produce a convergence angle and parallax to obtain a 3-D image. A 3-D image display device is used to enable the observer to focus his / her right and left eyes on the images of a 3-D image. A 3-D image 10a is displayed at a position close to the spectacles 4 and then gradually moved away from it. The eyesight recovery apparatus comprises a movement control unit 10 for moving a 3-D image 10b at a distance close to the spectacles 4 and a repetition control unit 23 for repeating the receding and approach movements. When the observer wearing the spectacles 4 tries to always focus on the 3-D images 10a and 10b on the screen 50, his / her ciliary bodies and eyeball moving muscles around his / her eyes are stimulated, thereby recovering his / her eyesight.

A system and method are disclosed for using a camera image of a user's eye as a visual stimulus for the calibration point in an eyetracking calibration system. A camera image of a user's eye is generated on a user display using an eyetracker. The camera image of the user's eye is used as a visual stimulus of a calibration point. In an embodiment, the center of the pupil of the camera image of the user's eye represents the coordinates of the calibration point on the user display. In another embodiment, the center of the corneal reflection of the camera image of the user's eye represents the coordinates of the calibration point on the user display.

The invention discloses an outdoor LED display screen based on a concave-convex lens visual persistence curtain with a scraping brush. The outdoor LED display screen structurally includes a front curtain board, locking pin sockets, a lens disc lifting brush frame, a left-hand clamping block, a luffer board frame, LED lamp bead boards and a pressing buckle horizontal bar frame. According to the display screen, the front curtain board cooperates with the lens disc lifting brush frame, through lifting of a concave-convex lens, the concave-convex lens is in lifting sliding linkage with a slide-rodjacking column, pulls a scraping brush shaving board, presses against and fits the front curtain board for snow water removal and cleaning, when the front and rear portions of the LED lamp bead boards are subjected to mapping and imaging, one layer is displayed on the front curtain board through image formation, mappings at the rear ends are converged into a concave mirror slotted disc, then a second layer is stereoscopically formed at the front end of the display screen through the magnification effect of a convex mirror block, the animated visual persistence effect is achieved, people can conveniently adjust the crystalline lenses in the eyes, there is a sense of distance, a fascinating feeling is presented, visual fatigue can be relieved, and the flexibility of machines inside the display screen is optimized.

The invention discloses an eyedrop for preventing and treating muscae volitantes as well as a preparation method and use thereof and belongs to the technical field of traditional Chinese medicine. The eyedrop is characterized by comprising the following substances in parts by weight: 0.3-1.0 part of dried orange peel, 0.3-1.1 parts of chrysanthemum, 0.8-1.8 parts of mulberry leaves, 0.6-1.5 parts of sodium chloride, 0.1-1.0 part of coptis, 0.3-1.1 parts of cortex phellodendri, 0.2-1.2 parts of pseudo-ginseng, 0.5-1.3 parts of mint, 0.4-1.3 parts of borneol, 0.3-1.2 parts of vitamin B2 and 85-96 parts of distilled water. The eyedrop for preventing and treating muscae volitantes has the effects of sterilizing and diminishing inflammation, clearing heat, relieving fever, moisturizing bulbus oculi, cooling and improving eyesight, and is capable of effectively relieving disorders such as discomfort and dehydration of eyes caused by muscae volitantes; the formula is safe and mild and contains multiple nutritional ingredients for eye health care, and meanwhile, is low in preparation cost and good in effect, has special effects on muscae volitantes and no toxic or side effects and can be used as a long-term health-care liquid medicine for eyes.