42 results about "Right pupil" patented technology

There is provided a method of measuring a pupil distance, which includes locating an imaging device at a position a predetermined distance away from a member attached to eyeglasses worn by a subject. The member has two indicators. The method further includes photographing the subject while the subject observes an observing point in the vicinity of the imaging device, measuring an apparent distance E between left and right pupils on a photographed image, and obtaining an interpupillary distance PD in accordance with PD=[(A+B)×C×E]/(A×D) where “A” represents a distance between the member and the imaging device, “B” represents a distance between a center of rotation and the member, “C” represents an actual distance between the indicators, and “D” represents an apparent distance between the indicators.

There is disclosed a system of providing technical guidance and instruction by utilizing two zoom lens equipped auto focus CCD cameras placed directly in front of the instructor's left and right pupils and communication networks, such as internet. More specifically, a business system is disclosed which distributes technical guidance and instruction on medical surgeries and other highly precision oriented technical work performed in person, and/or an education guidance system which a specific client performs a medical surgery or other highly precise and technical work. In addition, the business system will have the capability of settling tuition/instruction fees which arise from providing the technical guidance and instructions, recruiting potential students, and settlement of payments to the instructors.

The invention discloses an information processing method and electronic equipment. The electronic equipment comprises a display unit. The method comprises the following steps: acquiring the pupil distance between a left pupil and a right pupil of a user; adjusting the center distance between the center of a left eye image and the center of a right eye image displayed on the display unit according to the pupil distance, thereby matching the center distance with the pupil distance. Through the method, a better display effect can be achieved.

The invention discloses a binocular positioning method and apparatus. The method comprises the steps of carrying out human face detection on a to-be-detected image, obtaining a human face position, and determining a to-be-detected human face bounding box covering the human face position; according to a correspondence relationship between a preset five-point bounding box and the human face bounding box, determining an estimated to-be-detected five-point bounding box corresponding to the to-be-detected human face bounding box, and determining initial positions of five key points of the to-be-detected image in the to-be-detected five-point bounding box accordingly; according to a preset display shape regression model, carrying out correction on the initial positions of the five key points, and obtaining final positions of the five key points; and extracting position coordinates of a left pupil point and a right pupil point from the final positions of the five key points. According to the method and apparatus disclosed by the invention, the eyes can be accurately positioned under the condition of a blur face image or blocked eyes, thereby improving the accuracy and stability of binocular positioning.

The invention relates to the technical field of three-dimensional image display, and specifically relates to a grating-based three-dimensional display method. The method can realize monocular multi-view presentation by increasing the viewpoint distribution density of an area where an observer is located, thereby improving the three-dimensional visual comfort level. According to the method, relevant parameters of a grating are changed according to the spatial position of the eyes of an observer, light passing through the whole or partial areas of adjacent visual areas enters the left pupil of the observer, and light passing through the whole or partial areas of other adjacent visual areas enters the right pupil of the observer. The respective corresponding visual areas of the two pupils ofthe observer are spatially separated from each other by means of other methods of projecting different images to the left eye and the right eye of the observer, or by means of the design of the arrangement direction of grating units.

A follow-up illuminating free stereo video image display is disclosed. The display comprises: an audience pupil position acquisition apparatus (an infrared source and an infrared camera), which is used to collect left and right pupil position information of all the audiences and does not affect the audiences to watch an image; an image display device (a transmission-type liquid crystal display), which is used to display the externally input left and right video images in a time sharing mode; a back-light follow-up lighting device (comprising a light source array, a laminated light guide plateand a cylindrical surface lens array), which is used to divide a backlight lighting beam into left and right two beams so as to achieve alternative illumination, wherein one beam follows movement of the left pupils of the audiences and the other beam follows the movement of the right pupils of the audiences. The beams and the left and right video images which are displayed in the time sharing mode are switched synchronously. The left image is projected to the left pupils of all the audiences and the right image is projected to the right pupils of all the audiences so that the audiences can watch the video stereo images without crosstalk. The audiences can independently set a 2D or a 3D mode. The highest transverse resolution is a physical resolution of the liquid crystal screen.

The invention discloses an intelligent glass wearing adjustment method and device. The intelligent glass wearing adjustment method includes the following steps that: a left eye display screen and/or a right eye display screen is made to display a preset figure in the middle of the left eye display screen and/or the right eye display screen in a full-screen manner; adjustment instructions inputted by a user are received, wherein the adjustment instructions comprise at least one of instructions selected from a left visual distance adjustment instruction, a right visual distance adjustment instruction, a left pupil distance adjustment instruction and a right pupil distance adjustment instruction; and corresponding adjustment mechanisms are controlled according to the adjustment instructions to adjust the position of the left eye display screen or the right eye display screen, so that the preset figure can be clearly imaged in the eyes of the user, wherein the adjustment mechanisms corresponding to the left visual distance adjustment instruction, the right visual distance adjustment instruction, the left pupil distance adjustment instruction and the right pupil distance adjustment instruction are a left visual distance adjustment mechanism, a right visual distance adjustment mechanism, a left pupil distance adjustment mechanism and a right pupil distance adjustment mechanism respectively. The intelligent glass wearing adjustment method and device of the invention are simple in control process. According to the method and device, visual distance adjustment and pupil distance adjustment can be realized without an externally-arranged AP graphic software interface required, and therefore, the application cost of the method and device is greatly reduced, and the application range of the method and device can be wider.

The invention discloses a face angle determination method and system. The method comprises the steps of: 1, obtaining a two-dimensional face photograph of a target person, and carrying out pre-processing on the face photograph; 2, extracting face characteristic information after the pre-processing; 3, inputting the face characteristic information extracted in the step 2 into a standard multidimensional face model establishing module, and establishing a multidimensional face photograph; 4, extracting face characteristic information in the multidimensional face photograph, wherein the face characteristic information at least includes coordinate values of a left pupil Le, a right pupil Re, a nose tip point J and a nose saddle point A; 5, calculating a horizontal deflection angle X of a face and a first vertical deflection angle Y and a second vertical deflection angle Z of the face; and 6, displaying the horizontal deflection angle X, the first vertical deflection angle Y and the second vertical deflection angle Z through a display module. The face angle determination method and system have the advantages that the error is small, and the efficiency is high.

The invention discloses wearable equipment for pupil distance detection and an implementation method thereof. The equipment comprises a benchmark module which is worn on the bridge of the nose and an image processing module; the image processing module at least comprises a camera, a screen and a DSP processing chip; the DSP processing chip conducts focusing according to virtual frames, where the left eye and the right eye are located, in the screen, and reflective spots of the eyes are obtained by finding the two brightest spots in the virtual frames where the left eye and the right eye are located, central positions of the pupils of the left eye and the right eye are found through the reflective spots, and the pupil distance presented in an image and the length of the benchmark module in the virtual frame are obtained through calculation; the actual pupil distance of the centers of the left pupil and the right pupil are calculated according to the data finally. According to the wearable equipment for pupil distance detection and the implementation method thereof, by means of the image processing module with the DSP processing chip, a user can complete the whole measurement process independently without depending on others, and use is made to be more convenient and rapid.

A display apparatus may enable a viewer to perceive an image. The viewer has a right eye and a left eye, the right eye having a right pupil, the left eye having a left pupil. The display apparatus includes a display panel including a plurality of subpixels. The display apparatus further includes a position detecting part configured to detect a user location related to the viewer. The display apparatus further includes a light controlling element configured for transmitting light provided from one or more of the subpixels toward one or more of the right eye and the left eye. The display apparatus further includes a display panel driver configured to change subpixel-eye association for at least one of the subpixels in response to a change of the user location detected by the position detecting part.

The invention relates to an optical device and display equipment, the optical device comprises a waveguide plate, an entrance pupil grating unit, a left pupil expanding grating unit located on the left side of the entrance pupil grating unit and a right pupil expanding grating unit located on the right side of the entrance pupil grating unit are formed on the waveguide plate, and the left pupil expanding grating unit and the right pupil expanding grating unit are in left-right mirror symmetry with the entrance pupil grating unit as the center; the left and right exit pupil grating units are positioned below the left and right pupil expanding grating units and are also arranged in a left and right mirror symmetry manner; input light is diffracted by the entrance pupil grating unit to form first left conduction light and first right conduction light, the first left conduction light is diffracted by the left pupil expanding grating unit to form second left conduction light, and the first right conduction light is diffracted by the right pupil expanding grating unit to form second right conduction light; the second left conduction light is diffracted into left output light through the left exit pupil grating unit; the second right conduction light is diffracted into right output light through a right exit pupil grating unit; and the input light, the left output light and the right output light are consistent in direction. Binocular display can be realized through the waveguide, and the color uniformity can be improved.

The invention discloses an optical module and a head-mounted type display device. The optical module comprises a module shell, and a left lens cone mechanism, a right lens cone mechanism, a left pupil distance adjusting mechanism and a right pupil distance adjusting mechanism which are arranged in the module shell. The left lens cone mechanism comprises a left lens cone assembly and a left display screen arranged behind the left lens cone assembly and connected with the left lens cone assembly. The right lens cone mechanism comprises a right lens cone assembly and a right display screen arranged behind the right lens cone assembly and connected with the right lens cone assembly. The left pupil distance adjusting mechanism is connected with the left lens cone assembly and used for driving left lens cone mechanism to move left and right. The right pupil distance adjusting mechanism is connected with the right lens cone assembly and used for driving the right lens cone mechanism to move left and right. The optical module adjusts the left eye pupil distance and the right eye pupil distance through the left pupil distance adjusting mechanism and the right pupil distance adjusting mechanism respectively, and therefore a user can see an image more clearly with two eyes through the left lens cone assembly and the right lens cone assembly; the centers of the left lens cone assembly, the right lens cone assembly, the left display screen and the right display screen can not change.

The invention discloses an immersive video system with adjustable pupil distance. The immersive video system comprises a screen, convex lens glasses, and software operating in a processor. The software is used for outputting two completely same video images onto the screen and displaying the video images on the screen symmetrically. The left ocular lens and the right ocular lens of the convex lens glasses are both convex lenses. The distance between the center of the left ocular lens and the center of the right ocular lens can be adjusted by a key or knob, used for controlling the distance between the ocular lenses, on the convex lens glasses. By means of the adjustment of the key or knob, the distance between the center of the left ocular lens and the center of the right ocular lens is consistent with the distance between the center of a left pupil and the center of a right pupil. The software adjusts, according to the adjusted distance between the left ocular lens and the right ocular lens and acquired by a distance sensor arranged between the left ocular lens and the right ocular lens, or the adjusted distance between the left ocular lens and the right ocular lens and input by a user, the centers of left and right video images so that the center of the left video image is arranged on a straight line determined by the center of the left pupil of the user and the center of the left ocular lens, and the center of the right video image is arranged on a straight line determined by the center of the right pupil of the user and the center of the right ocular lens.

Disclosed are stereo endoscopes where the optical train of one optical system is separated in a left and right optical train. The separation in a left and right optical train is achieved by splitting the entrance pupil in a left and right pupil half. To additionally achieve a significant stereoscopic disparity the distance between the left and right pupil half is expanded. The separation of the entrance pupil and the expansion of the left and right pupil half is achieved by a distally located prism block. This prism block consists of a pair of rhomboidal prisms which are located exactly at the entrance pupil inside the endoscope objective. The front lens group is replaced by an identical pair of front lens groups each assembled in front of one of the two rhomboidal prisms. Such stereo endoscopes with expanded pupil halves enable to build stereo endoscopes with very small diameter or stereo endoscopes for special surgical applications. The described stereo endoscopes also include video endoscopes where the aperture functioning as the entrance pupil is separated in two halves and expanded for better stereoscopic effect. The prism block of the disclosed stereo endoscopes can also be used to separate the exit pupil of the disclosed stereo endoscopes and expand the optical axes on the proximal side to adapt to different stereo endoscopic cameras.

An autostereoscopic optical apparatus (10) for viewing a stereoscopic virtual image comprises a left image to be viewed by an observer (12) at a left viewing pupil (14l) and a right image to be viewed by the observer at a right viewing pupil (14r). The apparatus comprises a left pupil imaging system for forming the left image. A right pupil imaging system forms the right image.

The invention relates to a medical operating magnifier which is provided with a head fixing frame, wherein the head fixing frame is connected with a beam through a connecting rod; the connecting rod is connected with the head fixing frame and the beam through two kinematic pairs; a left pupil distance regulation knob and a right pupil distance regulation knob are connected to the beam; the left pupil distance regulation knob is fixed on a left lens cone; the right pupil distance regulation knob is fixed on a right lens cone; a left eyepiece is mounted at the proximal end of the left lens cone, and a right eyepiece is mounted at the proximal end of the right lens cone; a left object lens is mounted at the distal end of the left lens cone, and a right object lens is mounted at the distal end of the right lens cone; a concave lens, a second pentaprism, a first pentaprism and a convex lens are sequentially mounted from the proximal end to the distal end of each of the left and right lens cones. The medical operating magnifier has the advantages that a microscope operator is not required to lower the head for a long time, so that the burden of the cervical vertebrae of the microscope operator is reduced, and the medical operating magnifier is favorable for cervical health; the concave lenses are combined with the convex lenses, so that a magnified and erected virtual image can be presented, and direct operation is facilitated.

A multidimensional free stereoscopic display device comprises a display device, a multidimensional position detection module, a pupil follow-up adjusting module and an intelligent optical module. The pupil follow-up adjusting module comprises a planar adjusting mechanism and a light modulator; a plane of the display device serves as a spatially 3D coordinate reference, the multidimensional position detection module is arranged to obtain a spatially 3D position of a viewer, a central processing module controls the pupil follow-up adjusting module in real time according to the spatially 3D position of the viewer, light emitted by the intelligent optical module passes the light modulator and is gathered into left and right viewing windows, the planar adjusting mechanism is positioned between the intelligent optical module and the light modulator to adjust the distance between the light modulator and the intelligent optical module, and left and right viewing windows are formed in different distances, namely, the left and right viewing windows are gathered in specific distance, and follow left and right pupils of the viewer in real time.

The invention discloses a portable all-around naked-eye 3D technology arts teaching device. The teaching device comprises a liquid crystal display screen, a teaching display rack used for installationof the liquid crystal display screen, a damping mechanism installed at the bottom of the teaching display rack, a turning mechanism used for carrying out all-around rotation on the liquid crystal display screen and a moving mechanism used for moving and stopping the device. A column-shaped lens is arranged on the front side of the liquid crystal display screen so a column-shaped lens display screen is formed. Left-eye sight lines and right-eye sight lines of the left pupil and the right pupil pass the column-shaped lens. Different sub-pixels are seen. Right image rays and left image rays given out by the liquid crystal display screen are observed, and 3D effects are generated. By use of the 3D effects, arts contents are taught. By rotating an elevating switching rod, the liquid crystal display screen is adjusted to rotate all around in 360 degrees, and it is convenient to adjust the directions of the liquid crystal display screen all around. By rotating the elevating swinging rod, heights of wheel racks and moving wheels are adjusted and operation is convenient.

The present disclosure belongs to the field of 3D gaze point recognition and computer vision, and more particularly discloses a pose recognition method, device and system for an object of interest to human eyes, which respectively identifies centers of left and right pupils of a user by using a left eye camera and a right eye camera on an eye tracker to extract information of the user's eyes; maps the obtained centers of the left and right pupils to a left scene camera to obtain a 2D gaze point; extracts bounding boxes of objects in the left scene camera by using target recognition and tracking algorithms, and then determines an object of interest to the user according to a positional relationship between the 2D gaze point and the bounding boxes of the objects; performs 3D reconstruction and pose estimation of the object of interest to the user to obtain a pose of the object of interest in the left scene camera; and converts the pose of the object of interest in the left scene camera to a pose in the world coordinate system, thereby determining a pose of the object of interest to the user. The present disclosure can identify the object of interest to the user and estimate the pose of the object, and has the advantages of high recognition accuracy and high pose estimation accuracy.

The invention relates to AR glasses. The AR glasses comprise a waveguide sheet which is provided with an entrance pupil grating, a left pupil expanding grating, a right pupil expanding grating, a left exit pupil grating, and a right exit pupil grating; a first optical assembly which is arranged corresponding to the entrance pupil grating, wherein formed first light enters the entrance pupil grating and is diffracted to form first left diffracted light and first right diffracted light, the first left diffracted light is conducted and output through the left pupil expanding grating and the left exit pupil grating in sequence, and the first right diffracted light is conducted and output through the right pupil expanding grating and the right exit pupil grating in sequence; and a second optical assembly arranged corresponding to the entrance pupil grating, wherein formed second light enters the entrance pupil grating and is diffracted to form second left diffracted light and second right diffracted light, the second left diffracted light is conducted and output through the left pupil expanding grating and the left pupil exit grating in sequence and is coupled with the first left diffracted light, the second right diffracted light is transmitted and output through the right pupil expanding grating and the right pupil exit grating in sequence and is coupled with the second right diffracted light. The AR glasses are high in light emitting brightness.