41 results about "Right eyeball" patented technology

The invention relates to a human face image recognizing method based on the geometric size normalization of a human face, belonging to image processing technical field, and comprising the steps of: determining the coordinates of the left and right eyeballs on an input human face image, and according to the coordinates, rotating the image to the horizontal position to obtain a new human face image 2, then determining the coordinates of left and right eyeballs and mandible of the new human face image 2, specifying the numeric value of normalized geometric size of a human face, zooming in or out the new human face 2 to obtain another human face image 3 meeting the standard distance; according to the coordinates of left and right eyeballs and mandible of the human face image 3, cutting the human face image 3 to obtaina standard normalized human face image; forming training-set, known and to-be- recognized human face images into human face images of normalized geometric size and extracting human face characteristics, and in a known human face database, adopting the methods of calculating similarity and sequencing according to the similarity to recognize the human face. The invention obviously improves the visual effect of a human face and makes a higher increase in the recognizing ratio.

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 video face feature point location method, which is applied to the technical field of image processing. The method mainly comprises the steps that firstly, feature point location is carried out on the first frame of a video to acquire the initial position information of left and right eyeballs, two mouth points and the center of upper and lower lips, which facilitates tracking the points in subsequent video frames; secondly, a large displacement optical flow technology is used for each frame of a follow-up video to establish the variable optical flow field of an imageto track the positions of six points initialized in the first part in the current frame; and thirdly, the tracked position information of six points in the second part is used for feature point location. According to the invention, accurate feature point location can be carried out for rich expressions.

The invention relates to a zooming 3D (third-dimensional) display technique and aims to a zooming visual effect for spatial senses of human eyes. Specifically, relative positions of corneas of left and right eyeballs in the white parts of eyes are located through at least one camera, and a sight line intersection is calculated accordingly; a filter is used to perform different-level fuzzing to objects, different in distance, in a visual scene according to the position of the sight line intersection; in a 3D display, a fuzzed 3D image is displayed to simulate the eyes zooming in the reality. The zooming 3D display technique has the advantages that few hardware devices are required, only the cameras for measuring the angle of eyeball are added, the cost is low, and popularization is easy.

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.

The invention discloses a virtual reality device and a control method and apparatus for a display screen of the same. The virtual reality device comprises a first eyeball tracking module, a second eyeball tracking module, a processor and a display screen, wherein the first eyeball tracking module is set to acquire a left eyeball state of a user; the second eyeball tracking module is set to acquire a right eyeball state of the user; and the processor is set to control an on / off state of the display screen according to the left eyeball state and the right eyeball state. The left eyeball state and the right eyeball state of the user are tracked, and the on / off state of the display screen is controlled according to the left eyeball state and the right eyeball state of the user, so that the display screen is controlled to be turned off when the user closes the eyes, the power consumption of the virtual reality device can be effectively reduced, and the hardware cost is not increased.

The present invention discloses an intelligent system for avoiding fatigue driving and an intelligent method for avoiding fatigue driving. The system comprises: N left and right infrared LED lamps projected on left and right eyeballs to take as feature points for subsequent detection; a left camera and a right camera which have eyeball tracking sensors, wherein the left camera and the right camera is configured to track left and right eyeballs and shoot left and right image data; a processor configured to perform filter of the left and right image data, ROI area extraction and feature point detection, and send an alarm instruction to a vehicle center console when the time of the number of the left and right image feature points being less than N / 2 reaches an alarm threshold in a preset time; and a vibration feedback device arranged a vehicle center console control seat and configured to realize vibration prompting for drivers. The intelligent system for avoiding fatigue driving and the intelligent method for avoiding fatigue driving determine eye closing / opening states according to the number of the feature points and determine fatigue driving according to the time of the eyes being located in the closing state. The intelligent system for avoiding fatigue driving and the intelligent method for avoiding fatigue driving are high in detection precision of eye motion states and realize vibration prompting through the vibration feedback device so as to avoid traffic accidents caused by fatigue driving in essence.

The invention discloses a spatial RSSR mechanism based biomimetic eye movement mechanism. The mechanism comprises a bottom plate, a left eyeball movement mechanism, a right eyeball movement mechanism and two eyelid movement mechanisms; each eyeball movement mechanism comprises a steering gear, a connecting rod, a bearing, a transmission shaft, a pin, a supporting frame, a circular ring, an eyeball and a camera; each eyelid movement mechanism comprises another steering gear, another connecting rod, an upper eyelid and a lower eyelid; the steering gears and the supporting frames are fixed on the bottom plate through screws; the connecting rods are respectively connected with the steering gears, the transmission shafts, the circular rings, the upper eyelids and the lower eyelids through the screws; the transmission shafts are connected with the supporting frames through pins and fixed on the circular rings through two bearings; the cameras are connected with the circular rings through the screws; the eyeballs sleeve the circular rings; the steering gears drive the connecting rods to enable the eyeballs to rotate up and down about the transmission shafts as well as rotating leftwards and rightwards about the pins, so as to open and close the upper and lower eyelids. The mechanism is compact in structure, small in space used, and flexible, accurate and reliable to move; the left and right eyeballs are independent from each other; the two eyeballs can move in the same direction or different directions.

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.

The embodiment of the invention provides an image displaying method and device, and virtual-reality equipment. The method is applied to the virtual-reality equipment, and comprises the following steps: acquiring a left eye panoramic image and a right eye panoramic image, and importing the left eye panoramic image into a preset left eyeball model to obtain a left eye panoramic environment image; importing the right eye panoramic image into a preset right eyeball model to obtain a right eye panoramic environment image; respectively determining the data to be watched by the left eye and the righteye of a user from the left eye panoramic environment image and the right eye panoramic image; rendering to obtain the left eye image and the right eye image by using the determined data to be watched by the left eye and the right eye of the user; and synchronously displaying the left eye image and the right eye image. Through application of the technical scheme provided by the embodiment of theinvention, the user immersion is improved when the image displaying is performed.

An auxiliary input device for use in inputting a user signal to a computer is provided. The computer auxiliary input device includes an infrared ray transmitter configured to transmit an infrared ray signal to a left eyeball and a right eyeball of a user. A reflected light sensor configured to measure a change in an amount of light reflected from the left eyeball and the right eyeball. A controller configured to detect the change in the amount of light reflected from each of the eyeballs from the reflected light sensor, generate Morse code alphabets based on the detected change, and convert the Morse code alphabets into a character string to be transmitted to the computer. A computer communication unit is configured to provide the character string converted by the controller to the computer.

The invention discloses a bevel gear differential-motion human eye movement imitating mechanism. The bevel gear differential-motion human eye movement imitating mechanism comprises a left eyeball movement mechanism, a right eyeball movement mechanism and an eyelid movement mechanism. As for each eyeball movement mechanism, two central bevel gear, a bevel planet gear and a tie rod constitute a differential gear train, each bevel planet gear is in rigid connection with each eyeball, independent rotation of the two central bevel gears is achieved through motors, the independent rotation is combined into rotation of two degrees of freedom of the bevel planet gears, and therefore the eyeballs can rotate with the two degrees of freedom in the vertical direction and the horizontal direction. Two eyelids are in rigid connection with each other through a rotary shaft and a synchronous belt wheel, the other belt wheel is in rigid connection with one motor, the two belt wheels are in transmission with each other through a synchronous belt, and opening and closing of the eyelids can be achieved through rotation of the motors. The bevel gear differential-motion human eye movement imitating mechanism is compact in structure, small in occupied space, and flexible, accurate and reliable in movement, the left eyeball and the right eyeball are independent from each other, and the two eyeballs can move in the same direction and in the different directions.

The invention relates to a human face image recognizing method based on the geometric size normalization of a human face, belonging to image processing technical field, and comprising the steps of: determining the coordinates of the left and right eyeballs on an input human face image, and according to the coordinates, rotating the image to the horizontal position to obtain a new human face image 2, then determining the coordinates of left and right eyeballs and mandible of the new human face image 2, specifying the numeric value of normalized geometric size of a human face, zooming in or out the new human face 2 to obtain another human face image 3 meeting the standard distance; according to the coordinates of left and right eyeballs and mandible of the human face image 3, cutting the human face image 3 to obtaina standard normalized human face image; forming training-set, known and to-be- recognized human face images into human face images of normalized geometric size and extracting human face characteristics, and in a known human face database, adopting the methods of calculating similarity and sequencing according to the similarity to recognize the human face. The invention obviously improves the visual effect of a human face and makes a higher increase in the recognizing ratio.

The invention discloses an anthropomorphic expression robot based on an electroactive polymer driver. The anthropomorphic expression robot based on the electroactive polymer driver comprises a head-shaped robot consisting of a skull cover and upper jaw part, an eyebrow part, an eyelid part, an eyeball part and a lower jaw and mouth part, wherein independent eyebrow driving assemblies are arrangedon a left eyebrow and a right eyebrow of the eyebrow part, the eyebrow driving assemblies drive the left eyebrow and the right eyebrow to move up and down and / or rotate left and right, independent eyelid driving assemblies which drive a left eyelid or a right eyelid to open and close up and down are arranged on the left eyelid and the right eyelid of the eyelid part correspondingly, independent eyeball driving assemblies which drive a left eyeball or a right eyeball to rotate are arranged on the left eyeball and the right eyeball of the eyeball part correspondingly, the lower jaw and mouth part comprises a lower jaw, a mouth and a lower jaw driving assembly, and the lower jaw driving assembly drives the lower jaw to open and close to drive the mouth to open and close. According to the anthropomorphic expression robot based on the electroactive polymer driver, the motion range of each part is the same as the motion range of the corresponding part of human, various basic expressions of the human can be flexibly simulated, and the anthropomorphic expression robot based on the electroactive polymer driver has the advantages of light and compact structure, no noise, low energy consumption and the like.

The invention discloses a robot bionic eye. The robot bionic eye comprises a main frame, a left eyeball, a right eyeball and an eyeball bracket, wherein the left eyeball and the right eyeball are arranged on the eyeball bracket; the eyeball bracket is arranged at the front end of the main frame; the robot bionic eye further comprises an eyeball horizontal rotation mechanism and an eyeball verticalrotation mechanism; the eyeball horizontal rotation mechanism comprises an isosceles double-rocker mechanism arranged on the main frame; a horizontal driving unit for driving the isosceles double-rocker mechanism to rotate is arranged on the main frame; a left driving rod is arranged at the rear end of the left eyeball; a right driving rod is arranged at the rear end of the right eyeball; the left driving rod is connected with a left rocker of the isosceles double-rocker mechanism through a left connecting member; the right driving rod is connected with a right rocker of the isosceles double-rocker mechanism through a right connecting member; the eyeball vertical rotation mechanism comprises a vertical driving unit; and the vertical driving unit drives the left and right driving rods to move up and down so as to drive the left and right eyeballs to rotate up and down. The robot bionic eye is capable of decreasing the number of motors, and making the rotation of the eyeballs more realistic and expressive.

The invention provides a bio-robot eye driving mechanism. The bio-robot eye drying mechanism comprises an upper eyelid, a lower eyelid, a stand, a left eyeball, a right eyeball, a steering engine, a swing rod, a connection rod, a pull rod and a ball connection rod.

The invention relates to a tree shrew retina ischemic injury experiment model adopting photochemical induction, and belongs to the technical field of clinical medicine, pharmacy and cell biology. The experiment model is obtained through steps as follows: a healthy adult tree shrew is selected and is anaesthetized by 40 mg*kg(-1) of 2.5% sodium thiopental through intraperitoneal injection; the tree shrew is fixed on an operating table, and 2.75% rose Bengal normal saline is injected from the sublingual vein of the animal in a dose of 0.031 ml / 10 g; 2 drips or 3 drips of a 0.25% compound tropicamide solution are utilized to dilate pupils; after rose Bengal is circulated for 10 min, a small animal cerebral thrombosis experimental device with the patent number of ZL201420068737.2 is adopted to irradiate a left eyeball or a right eyeball, so that vascular endothelial injury and platelet aggregation induce thrombogenesis, and the surface temperature of the irradiated part is controlled to be 37.0 DEG C plus or minus 0.1 DEG C; the thermal insulation is performed, the animal is placed back to a cage after coming round, fundus retina photographing is performed after the experiment is finished for 4 h, 24 h and 72 h; fundus artery thrombogenesis and retina injury change are dynamically observed with a conventional method. The model has the advantages of simplicity and convenience in operation, good repeatability and low experiment cost.

The invention is applicable to the technical field of video induction, and provides a myopia prevention method based on a video induction technology. The method comprises the following steps of: shooting a main image in real time, and identifying and acquiring a face image in the main image; recognizing and calculating position coordinates of left and right eyeballs in the face image, and calculating fixation angles of the left and right eyeballs through the position coordinates; calculating camera shooting distances from the left eyeball and the right eyeball to a camera shooting unit, and respectively calculating eye use distances from the left eyeball and the right eyeball to a fixation point according to the camera shooting distances and the fixation angle; and analyzing whether the eye use distances and the stay time of the eye use distances exceed corresponding preset prevention thresholds or not, and if so, generating feedback reminding information to remind a user. The invention further provides a myopia prevention system based on the video induction technology. Therefore, the actual eye use distance between the eyes of the user and the gazed point can be updated in real time, the reading posture of the user can be reminded and corrected in time, and then the effect of preventing myopia is achieved.

The invention provides a fundus blood vessel image segmentation method based on self-supervised learning. The method comprises the following steps of S1, setting a data set which comprises a labeled image sample D and label-free left and right eyeball image information XT belonging to (L, R) of a same patient; S2, constructing a self-supervised network which is composed of two identical U-Net networks based on an auxiliary task, wherein the two parallel U-Net networks are respectively marked as a baseline (a) and a baseline (b); S3, constructing an image segmentation loss model, respectively inputting the labeled image sample D and the label-free left and right eyeball image information XT belonging to (L, R) of the same patient into the baseline (a) and the self-supervision module composed of the baseline (a) and the baseline (b), optimizing the parameters of a baseline (a) network through a cross entropy loss function and a local consistency comparison loss function, wherein the network parameters of the baseline (b) in the training process are obtained through the momentum transmission of the baseline (a); and S4, inputting the to-be-detected left and right eye image information to any network in the optimized self-supervised network for image segmentation processing to obtain a final segmentation result. Through the above method, the accurate segmentation can be performed on the fundus blood vessel image.

The invention discloses a teaching aid capable of assisting in memorizing extraocular muscle functions, which comprises rotatable left and right eyeball model components, left and right hand model components, spherical left and right eyeball models, corresponding extraocular muscle patterns printed on corresponding parts on the surfaces of the left and right eyeball models, the left and right eyeball models are movably mounted in mounting components, and the left and right eyeball models are movably mounted in the mounting components. The mounting part is of a hollow or transparent structure, the upper parts of the left eyeball model and the right eyeball model are exposed, and the left eyeball model and the right eyeball model can rotate under the manual action; the left-hand model and the right-hand model are in the state that the index finger, the middle finger and the thumb are opened and the ring finger and the little finger are closed, and the left-hand model and the right-hand model have front and back surfaces, can be mutually independent and can be taken up or put down. The teaching aid can assist in teaching and improve learning and memorizing efficiency, can quickly judge the corresponding extraocular muscle function through the visual eyeball model capable of being operated by hands and the use of the left and right hand model, and has the characteristics of intuition, operability and pithy formula teaching.

The invention discloses a face rigid body model, a fixation point detection method and device and a storage medium, and the method comprises the steps: obtaining a first visible light face image of a current user, which is forwardly shot by an image sensor, and obtaining a preset number of feature points of the face of the current user from the first visible light face image; determining a left eyeball center three-dimensional coordinate, a right eyeball center three-dimensional coordinate and a face center three-dimensional coordinate of the current user based on the preset number of feature points; and respectively establishing a left eye vector and a right eye vector from the left eyeball center three-dimensional coordinate and the right eyeball center three-dimensional coordinate to the face center three-dimensional coordinate, and mapping the left eye vector and the right eye vector to the face three-dimensional model to obtain a face rigid body model of the current user.

Validity of a line-of-sight direction detected by a gaze point detection unit is determined by using a positional difference that is a calibration value used for detecting a position of a corneal curvature center. Therefore, it is possible to easily and effectively determine the validity of the line-of-sight direction without additionally using a system or the like for detecting the validity of the line-of-sight direction. Consequently, it is possible to accurately detect line-of-sight directions of various subjects, such as a subject whose left and right eyeballs have different corneal curvature radii or a subject whose line-of-sight directions of left and right eyeballs are largely different due to the influence of strabismus or the like.

The invention discloses a robot and interaction method thereof. The robot comprises a head shell, a control device and a sensor perceptual system; a left eyeball, a right eyeball, an eyeball transmission mechanism, a loudspeaker and a carrier frame are arranged inside the head shell; the sensor perceptual system comprises a pyroelectric infrared sensor and a range sensor, the pyroelectric infraredsensor is located inside the left eyeball, and the range sensor is located inside the right eyeball, the left eyeball and the right eyeball are both rotationally connected with the head shell; the eyeball transmission mechanism comprises a steering engine and a transmission rod, a steering engine disc is installed on a rotating shaft of the steering engine, the left eyeball and the right eyeballare connected with the tail end of the transmission rod in a hinged mode, the head end of the transmission rod is hinged to the steering engine disc, and the steering engine and the loudspeaker are both fixedly connected with the carrier frame; and the pyroelectric infrared sensor, the range sensor, the steering engine and the loudspeaker are all electrically connected with the control device. Therobot has a good active interaction function.

The invention relates to a fetal craniocerebral scanning three-point plane positioning method. The method comprises the following steps: searching a fetal craniocerebral fossa or craniocerebral crest, and performing positioning by taking the fetal craniocerebral fossa or craniocerebral crest as a first site; then, searching for a fetal eyeball by taking a the first site as an original point, and performing positioning with the left eyeball as a second site and the right eyeball as a third site; quickly scanning the fetus to obtain an axial view or oblique axis sequence; performing sagittal view and coronal view confirmation and positioning on the sequence; determining a standard axis view on the sagittal view and the coronal view to obtain a coronal sagittal axis; scanning in three directions around the coronal sagittal axis to obtain a standard body position of the fetus; and by taking the standard body position as a contrast, scanning other parts and performing quick capturing and imaging. The invention can quickly find the opposite front side of the fetus, is beneficial to positioning the head and the five sense organs of the fetus and shortens the scanning time, so that a pregnant woman does not need to lie for a long time, and the problem that the fetus cannot use a sedative or the movement of the fetus cannot be controlled so that accurate scanning cannot be achieved is greatly improved.

An auxiliary input device for use in inputting a user signal to a computer is provided. The computer auxiliary input device includes an infrared ray transmitter configured to transmit an infrared ray signal to a left eyeball and a right eyeball of a user. A reflected light sensor configured to measure a change in an amount of light reflected from the left eyeball and the right eyeball. A controller configured to detect the change in the amount of light reflected from each of the eyeballs from the reflected light sensor, generate Morse code alphabets based on the detected change, and convert the Morse code alphabets into a character string to be transmitted to the computer. A computer communication unit is configured to provide the character string converted by the controller to the computer.

The invention discloses a vestibular ocular reflex recording method for autism spectrum disorder children. The vestibular ocular reflex recording method is characterized in that a first 980nm laser sensor and a second 980nm laser sensor are arranged at the left front part and the right front part of the left side and the right side of a glasses support respectively; a laser beam emitted by the second 980nm laser sensor is incident to the left eye through a beam expanding lens, and a 10-degree angle is formed between the light and an eyeball; a laser beam emitted by the first 980nm laser sensor enters the right eye through the beam expanding lens, and an angle of 10 degrees is formed between the light and an eyeball; and the first 980nm laser sensor is used for measuring the vestibular ocular movement of the right eyeball. Vestibular ocular movement amplitude, frequency and phase of eyeballs are determined through a function relation between eyeball displacement components in the light propagation direction and eyeball displacement, so that vestibular ocular reflex of the autism spectrum disorder children is rapidly recorded. According to the method, the vestibular ocular reflex of the autism spectrum disorder children can be rapidly recorded through a set of glasses type laser sensors, and the vestibular ocular reflex detection efficiency and accuracy of the autism spectrum disorder children are improved.

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.

Validity of a line-of-sight direction detected by a gaze point detection unit is determined by using a positional difference that is a calibration value used for detecting a position of a corneal curvature center. Therefore, it is possible to easily and effectively determine the validity of the line-of-sight direction without additionally using a system or the like for detecting the validity of the line-of-sight direction. Consequently, it is possible to accurately detect line-of-sight directions of various subjects, such as a subject whose left and right eyeballs have different corneal curvature radii or a subject whose line-of-sight directions of left and right eyeballs are largely different due to the influence of strabismus or the like.

The invention relates to a method for collecting irises of both eyes and a corresponding device. At present, there is a problem that it is difficult to stably obtain an ideal iris image in iris recognition technology. The method of the present invention is as follows: firstly, the left and right eyeballs of the subject are placed in the left and right half-mirrors respectively; The vibration directions are perpendicular to each other; finally, the clear iris image is saved. At the same time, the invention provides the device used by the method. The invention makes full use of the physiological and physical characteristics of human eyes, so that the iris of both eyes and the imaging plane are kept parallel to each other during acquisition, and the obtained left and right iris images are symmetrical and stable during multiple acquisitions.