315 results about "Interpupillary distance" patented technology

A virtual or augmented reality headset is provided having a frame, a pair of virtual or augmented reality eyepieces, and an interpupillary distance adjustment mechanism. The frame includes opposing arm members, a bridge positioned intermediate the opposing arm members, and one or more linear rails. The adjustment mechanism is coupled to the virtual or augmented reality eyepieces and operable to simultaneously move the eyepieces in adjustment directions aligned with the plurality of linear rails to adjust the interpupillary distance of the eyepieces.

A system of linked digital cameras for an image capture system is disclosed. A first and second digital camera can be linked to capture a first images and a second image that are used to form a stereo image. A first data port on the first digital camera and a second data port on the second digital camera intercommunicate data between each other when the cameras are linked. The data can include the first and second image data, camera control data, and camera synchronization data. After capturing the first and second images, the image from one of the cameras can be transferred to the other camera so that both the first and second images reside in the other camera. The system allows a user who wishes to capture stereo images the ability to do so with out having to purchase two digital cameras. A compatible digital camera can be borrowed from another user for the purpose of stereo image capture. After the stereo image is captured, the user transfers both images to his camera and returns the borrowed camera. The cameras can be equipped with viewfinders that allow a user of the cameras to view the image being captured in stereo. The viewfinders can be adjustable to accommodate variations in user interpupillary distance. A digital camera operating system (OS) can be customized to enable stereo image capture, image data handling, image processing, and camera control for the linked digital cameras.

The apparatus represents a device having one or two sensors for capturing a single image or two images having the subject's eyes, in which a dimension, such as the horizontal axis, with respect to pixels in the single image or two first images characterizing zero head tilt, and processors in one or more of a housing with the one or two sensors or in a computer system which receives the single image or two images. Such processors determine a head tilt angle between a virtual line extending between the two eyes of the subject in accordance with predefined features, such as pupil or iris center, in the single image or two images and the dimension characterizing zero head tilt, segment left and right iris images from the single image or two images, and rotate the segmented left and right iris image in accordance with the angle to substantially remove head tilt when present. A database of identification data may be provided storing at least templates representative of right and left irises of a plurality of subjects without substantial head tilt, and the processors generate template(s) representative of the left and right irises of the subject, which are either added or compared to the identification data. The processor may also determine interpupillary distance (IPD) or IPD-to-iris ratio using the single image or two images, and as such may be used for comparative searching of the identification data having IPD or IPD-to-iris ratio of the plurality of subjects.

A wearable display apparatus adjusting image display positions fit for an interpupillary distance of a user. The wearable display apparatus has a main control unit outputting view display position adjustment information corresponding to inputted interpupillary distance setting information and display units display-processing image information inputted to an area within a display region which is smaller than an entire view display area corresponding to the view display position adjustment information. With the wearable display apparatus, simplification in structure and convenience in use, are provided since image display positions may be adjusted to fit an interpupillary distance of a user without movements of optic systems.

A system of processing of three dimensional [3D] image data for display on a 3D display for a viewer is described. 3D display metadata defines spatial display parameters of the 3D display such as depth range supported by the 3D display. Viewer metadata defines spatial viewing parameters of the viewer with respect to the 3D display, such as viewing distance or inter-pupil distance. Source 3D image data arranged for a source spatial viewing configuration is processed to generate target 3D display data for display on the 3D display in a target spatial viewing configuration. First the target spatial configuration is determined in dependence of the 3D display metadata and the viewer metadata. Then, the source 3D image data is converted to the target 3D display data based on differences between the source spatial viewing configuration and the target spatial viewing configuration.

The invention discloses a monocular distance-measuring method and system based on human eye positioning. The method comprises the steps that a human face image is collected through a camera carried by a mobile terminal, and the image is preprocessed; human face detection and human eye positioning are carried out on the preprocessed image, and the circle center coordinate positions of the two pupils are obtained; the distance from the human eye to a screen of the mobile terminal is obtained by combining the circle center coordinate positions, the actual interpupillary distance and the focal length and through a geometric similarity method. The monocular distance-measuring method and system based on human eye positioning can remind a user of the mobile terminal to keep a correct posture and an appropriate distance from the user to the electronic screen, and prevent myopia.

In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers. $\frac{e}{3}\ne \frac{Y}{2\times j}$

The invention provides a binocular head-wearing display device and a method thereof for adjusting image spacing, which belongs to the technical field of head-wearing display. The binocular head-wearing display device can solve the problems of the prior art of complicated operation for image spacing adjustment and poor display effects and viewing experience. The binocular head-wearing display device comprises two display units, an image acquisition unit and an interpupillary distance analysis unit, wherein the two display units are respectively used for generating test images and display images for the left eye and the right eye of a user, the two test images respectively have a test mark, and the spacing between the two test marks is gradually increased or gradually reduced; the image acquisition unit is used for acquiring images in both eyes of the user, and the interpupillary distance analysis unit is used for getting the critical moment when the interpupillary distance changes according to images in the eyes of the user when the user watches the test images and determining the image spacing according to the spacing between the two test marks at the critical moment. In addition, the critical moment is a moment that the interpupillary distance stops increasing gradually and becomes stable or a moment that the interpupillary distance stops being stable and starts to reduce gradually.

A method for estimating a person's interpupillary distance (PD) includes:

• • a data acquisition phase 100 that utilizes a predefined movement of the person in front of a camera;
  • a morphological and dimensional parameter calculation phase 200 based on the acquired data.

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.

The present invention provides a near-eye display device that automatically adjusts the optical system. The near-eye display device includes an optical system, a camera unit, a processing unit, and a motion unit. The camera unit and the motion unit are electrically connected to the processing unit. connected, the optical system includes a lens unit and a display unit, the camera unit includes a camera device with a fixed focal length and orientation, and the camera device includes a left camera device and a right camera device. Compared with the prior art, the present invention adopts the method of separately measuring and adjusting the coordinate position of the unilateral pupil, which can not only measure the user's interpupillary distance, but also measure the displacement of the user's unilateral pupil from the central position and adjust the corresponding position separately according to the measurement result. The side optical system makes the measurement and adjustment more accurate, ensures a better display effect, and avoids possible deviations caused by only measuring the interpupillary distance to adjust.

The invention discloses a video perspective three-dimensional display capable of wearing on the head of a user and a control method thereof. The video perspective three-dimensional display comprises two cameras (3, 25), shutter glasses (12), a shutter glasses bracket (14) and a control device thereof, wherein, the cameras (3, 25) are fixed on the bracket, the shutter glasses (12) are fixed on the shutter glasses bracket (14), the signal output ends of the cameras (3, 25) are connected with the input end of the control device, the output end of the control device is connected with the signal input end of the shutter glasses (12), and the cameras (3, 25) are connected with a driving device (43) which can adjust mutual distance between the cameras (3, 25). The head video perspective three-dimensional display adopts the structure that a micro-step motor is used for adjusting distance between two cameras, so that the distance between two cameras is matched with the interpupillary distance of the current user so as to obtain better three-dimensional experience effects. The invention improves the experience effects of a user, avoids or lightens the unpleasant symptoms such as fatigue, dizziness and the like caused by that the interpupillary distance between two eyes of a user is inconsistent with the distance between two cameras.

The invention provides an adaptive parallax adjustment method and a virtual reality VR display system, and belongs to the technical field of display. The adaptive parallax adjustment method comprisesthe following steps: obtaining interpupillary distance information of a user; and adjusting a to-be-displayed image according to the interpupillary distance information. According to the method, in combination with the interpupillary distance information of the user of the VR display system, the to-be-displayed image is adjusted according to the interpupillary distance information, so that when the interpupillary distance of the user changes, the displayed image center changes accordingly, the image seen by the user can generate corresponding change according to the own pupils without using acomplex hardware adjustment mechanism, and thus good user experience is provided.

The present invention realizes stereoscopic television broadcasting which can reproduce a stereoscopic image best in state of stereoscopic viewing and a receiver for the stereoscopic television broadcasting.

In stereoscopic television broadcasting, a reference size of a display of a receiver is determined, images for right and left are displayed on the display with a reference size in a superimposing manner, and transmission is performed such that a distance between the same corresponding points of an infinite subject image is reproduced and displayed to be equal to an interpupillary distance of a human.

A head-mounted visual field inspector is characterized by comprising a housing, a control chip, a closed patch and two aspherical convex lenses, wherein an interpupillary distance adjusting shifting rod is arranged on the lower part of the housing and used for adjusting the distance between the two aspherical convex lenses to adapt to the interpupillary distance of a subject; an eye movement monitor and an infrared shooting device which are connected to the control chip are arranged beside each aspherical convex lens and used for monitoring the eye movement; an LED screen is arranged in front of the two aspherical convex lenses and used for providing background light, fixation points and required stimulation points of different directions and different degrees of luminance in the inspection process for inspecting the visual field of the subject; and a perception feedback device is connected with the control chip by a wire and used for feeding back the perception result of the subject for bright spots on the LED screen. The head-mounted visual field inspector can rapidly detect the visual field of the subject, and is capable of reducing the visual field detection result errors caused by the eye movement, so that the screening of visual field for massive population or home follow-up for patients with visual field injury becomes very convenient.

A modular VR system is provided with features that are specifically beneficial to public venues. The system includes a mask unit that is preferably custom fit to the user, and a modular, selectively -connectable viewing unit. The viewing unit houses all the required virtual reality optics and may be selectively secured to the mask unit. The mask unit includes an electrical memory which is electrically connected to the viewing unit when the two are connected. The viewing unit includes activatable covers to automatically protect the lenses whenever the viewing unit is disconnected from the mask unit. The viewing unit further includes a system to automatically adjust the distance between the lenses to match the interpupillary distance of the user. The viewing unit also includes an integral payment device and a handle.

The invention relates to an interpupillary distance measuring method and system for a 3D display system and a display device. The method comprises the following steps: acquiring image data containing facial features of an observer, obtaining the interpupillary distance value of a human eye image, converting the interpupillary distance value of the human eye image into the actual interpupillary distance value under a three dimension space system according to a real space size factor result, and outputting the actual interpupillary distance value. The interpupillary distance value of the observer can be automatically obtained in real time, and real-time performance in interpupillary distance detection can be improved. Based on the interpupillary distance value which is automatically obtained in real time, a data source of 3D frames can be automatically adjusted according to the interpupillary distance of the observer, and therefore 3D display effects can change along with the interpupillary distance of the observer; the observer can be prevented from vertiginous sensation when watching 3D displays with naked eyes, the observer can watch the 3D displays with the naked eyes for a longer time, and large-scale popularization and application of naked eye 3D technology products can be benefited. The said method and the said system can be applied to devices capable of image processing, such as mobile phones, all kinds of computers, advertisement machines, liquid crystal splicing screen walls, medical display equipment and the like.

The invention relates to liquid self-adapted focusing glasses comprising glasses frames, glasses legs, lenses mounted on the glasses frames, an interpupillary distance adjusting device and a degree adjusting rod, wherein the glasses frames are provided with the front and back lenses in a sealed manner; the front and back lenses are made of different materials to form a closed chamber for containing liquid with the glasses frames; the interpupillary distance adjusting device is mounted on a connecting frame rod between the two glasses frames; the glasses legs are connected with the glasses frames through bolts; each glasses leg is internally provided with an injection device; the injection device comprises a push rod, a piston and a spring; and a rubber hose is used for conducting the liquid between a closed cavity of the glasses legs and the closed chamber formed by the lenses and the glasses frames. A user can adjust the glasses into myopia glasses or hypermetropia glasses according to own different conditions and can change the degrees of the lenses according to the requirements of the user to achieve the requirements of the user. The liquid self-adapted focusing glasses have the advantages of economy, environmental protection and convenience.

In certain embodiments, a head-mounted display may include one or more displays for displaying images. A left and right movable disk may be placed respectively between the left and right eyes of a user and the one or more displays. The user may wear the HMD, and may adjust the spacing between the left and right disks while viewing the computer-displayed image or images through holes in the plastic discs. For example, the HMD may display a stereo colored bulls eye pattern, of which the user can only see a portion because their vision is restricted to on-axis viewing by the discs. The computer may instruct the user to move the HMD disks until the user can only see the color in the center of the bulls eye. In certain embodiments, by performing the foregoing adjustment, the eye may be oriented on the proper optical axis to look through an optimal location of a lens.

A binocular display deals with an optical contrast imbalance problem between display screens manifest over a range of interpupillary distances by orienting contrast asymmetries between the display screens in opposite directions.

The invention discloses a virtual reality helmet and a method for adjusting the interpupillary distance of the virtual reality helmet, and relates to the technical field of video and image display, in particular to virtual reality equipment with the adjustable interpupillary distance and an adjusting method. The method for adjusting the interpupillary distance of the virtual reality helmet comprises the steps of S200, an interpupillary distance detection module detects the interpupillary distance of a helmet wearer; S300, according to the interpupillary distance and the imaging relation of human eyes and a lens, a calculation module measures and calculates the sizes of a left screen display area and a right screen display area; 3400, according to a calculation result of the calculation module, a displayer displays the left screen display area and the right screen display area and the position in the display.

A rim portion or the like functioning as a boundary portion is arranged in a position corresponding to an interpupillary distance of an observer. Therefore, it is possible to cause a non-observer looking at the observer wearing a virtual image display apparatus from the outside to recognize that an outer frame portion is present in an appropriate position in terms of an eyeglass shape. It is possible to reduce a sense of discomfort given to the non-observer. Since the boundary portion is present in an appropriate position in terms of an eyeglass shape, a visual field same as a visual field obtained when the eyeglasses are worn is secured. Therefore, it is possible to sufficiently secure a visual field range for the observer in see-through.