Abstract: A method is designed to provide platooning information using a multi-focal plane augmented reality display of a host vehicle. The method includes receiving platooning data from at least one of a plurality of remote vehicles. Each of the plurality of remote vehicle is part of a platoon. The platooning data includes locations, trajectories, and headways of each of the plurality of remote vehicles. The method further includes determining whether the platoon is within a predetermined distance from the host vehicle using the platooning data. Further, the method includes transmitting a command signal to the multi-focal plane augmented reality display of the host vehicle to display a virtual image on the multi-focal plane augmented reality display. The virtual image is indicative of a platooning action related to the platoon that is within the predetermined distance from the host vehicle.

Abstract: A method for displaying an image is disclosed. An image is provided by a display, the image is located at a virtual image surface, and the image has an offset between different view directions. A controller is coupled to the display. The controller receives an information of the position of the vergence surface, performs an algorithm processing according to the information to obtain the offset, and transmits a display information including the offset to the display. An eye of the user focuses on an accommodation surface when viewing the image, and a position of the accommodation surface is different from a position of the virtual image surface.

Abstract: A health management system, including: a health assessment module configured to obtain human health-related health parameter information of a user, and generate a health condition assessment result on the basis of the health parameter information; a health intervention module configured to generate a health management plan on the basis of the health condition assessment result; a human body model generation module configured to generate a human body model that can be displayed on a display interface; and a human body information display model configured to display, on the basis of a received display instruction, the human body model on the display interface based on human body tissue layers, human body systems, or human body parts. In addition, also provided are a human body information display method and a human body model generation method applicable to the health management system.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for eye gesture recognition. In one aspect, a method includes obtaining an electrical signal that represents a measurement, by a photodetector, of an optical signal reflected from an eye and determining a depth map of the eye based on phase differences between the electrical signal generated by the photodetector and a reference signal. Further, the method includes determining gaze information that represents a gaze of the eye based on the depth map and providing output data representing the gaze information.

Abstract: A 3D strobo-stereoscopic imaging system includes a rotary drive configured to couple to a sample to be imaged by the system, wherein the rotary drive is configured to rotate the sample about a rotational axis when coupled to the rotary drive, a stroboscopic illuminator, a stroboscopic control module coupled to the rotary drive and the stroboscopic illuminator, wherein the stroboscopic control module is configured to repeatedly activate the stroboscopic illuminator at a frequency that is based on a rotational speed of the sample about the rotational axis, a stereoscopic imaging unit including a pair of laterally spaced cameras orientable in the direction of the sample, and an image reconstruction module coupled to the stereoscopic imaging unit and configured to reconstruct a 3D image of the sample from images produced by the pair of cameras of the stereoscopic imaging unit.

Abstract: An augmented reality, AR, system (100) for use in a medical procedure is disclosed. The AR system (100) comprises an AR headset (2), and a processor (12), The AR headset (2) comprises a camera (6a, 6b), a near eye display (4a, 4b) and a distance sensor (10a, 10b). The processor (12) is configured to adjust the position of the image obtained by the camera (6a, 6b) on the display (4a, 4b) throughout the medical procedure based on changes in the distance measured by the distance sensor (10a, 10b).

Abstract: A computer device for three-dimensional (3D) scene generation is provided. The computer device includes a graphics processing unit (GPU), and a processing unit coupled to the GPU. The GPU is configured to receive instructions from a graphics driver. The processing unit is configured to run the graphics driver and the application program. The processing unit is further configured to run a first program to intercept the first function calls sent from the application program to the graphics driver, to create the second function calls each corresponding to the first function calls based on interpupillary distance, and to transmit the first function calls and the second function calls to the graphics driver. The GPU is configured to render a first image according to the first function calls and to render a second image according to the second function calls.

Abstract: A system and method are disclosed to generate one or more mixed-reality visualizations and objects to facilitate efficient interaction with large volumes of data. Embodiments include a computer comprising a processor and memory and a mixed-reality display device comprising a display and one or more sensors. Embodiments generate a mixed-reality object comprising a first cuboid, the first cuboid comprising one or more adjustable display dimensions corresponding to one or more key process indicators (KPIs) and one or more cubelets divided along at least one of the one or more adjustable display dimensions. Embodiments display the mixed-reality object on the display, and adjust at least one of the one or more adjustable display dimensions in response to receiving a first input to the one or more sensors. In response to a second input, embodiments transform the one or more cubelets of the first cuboid.

Abstract: A light display system may display an image to a user and/or an audience using a persistence of vision effect. In an embodiment, a light display system includes a light source configured to emit a plurality of light patterns that correspond to multiple frames of an image. The light source is configured to sequentially emit the plurality of light patterns based on instructions from a control system such that the multiple frames are presented in a sequence at a first rate. The light display system also includes an image expander configured to reflect the plurality of light patterns toward a user of the head-mounted device, wherein at least a portion of the image expander is configured to rotate relative to the light source at a second rate that is coordinated with the first rate by the control system to thereby display the image for visualization by the user.

Abstract: A head-up display system includes a hologram projector adapted to project a holographic image, a waveguide positioned in front of the hologram projector, wherein the holographic image projected by the hologram projector passes through the waveguide, a glare control prism positioned in front of the waveguide assembly, and a waveplate positioned between the waveguide and the glare control prism, the waveplate adapted to adjust the polarization of the holographic image.

Abstract: In one implementation, a method includes receiving pixel events output by an event sensor that correspond to a feature disposed within a field of view of the event sensor. Each respective pixel event is generated in response to a specific pixel within a pixel array of the event sensor detecting a change in light intensity that exceeds a comparator threshold. A characteristic of the feature is determined at a first time based on the pixel events and a previous characteristic of the feature at a second time that precedes the first time. Movement of the feature relative to the event sensor is tracked over time based on the characteristic and the previous characteristic.

Abstract: Systems, methods, and devices relating to dynamic virtual element positioning in an augmented reality (AR) environment are described herein. In a method, a viewport may be output by a computing device and may comprise a virtual element and at least a portion of a scene captured by a camera associated with the computing device. A movement of the at least a portion of the scene in the viewport may be determined. An offset focal point along at least a portion of an axis of the virtual element may be determined that is the closest to a viewport focal point at the vertical and horizontal center of the viewport. The virtual element may be positioned in the viewport based on the movement of the at least a portion of the scene in the viewport and a distance between the offset focal point and the viewport focal point.

Abstract: A device for providing a reverse pass-through view of a user of a headset display to an onlooker includes an eyepiece comprising an optical surface configured to provide an image to a user on a first side of the optical surface. The device also includes a first camera configured to collect an image of a portion of a face of the user reflected from the optical surface in a first field of view, a display adjacent to the optical surface and configured to project forward an image of the face of the user, and a screen configured to receive light from the display and provide the image of the face of the user to an onlooker.

Abstract: Methods and systems provide improved navigation through tubular networks such as lung airways by providing improved estimation of location and orientation information of a medical instrument (e.g., an endoscope) within the tubular network. Various input data such as image data and CT data, are used to model the tubular networks, and the model information is used to generate a camera pose representing a specific site location within the tubular network and/or to determine navigation information including position and orientation for the medical instrument.

Abstract: Various embodiments described herein provide implementations for controlling flicker, for example caused by a plurality of light sources, in a multi-sensor environment. Various embodiments provided utilize a broadest illuminator source for capturing image data objects for processing. The broadest illuminator source minimizes the number of activation changes required between the various illuminator sources. One example embodiment includes activating a broadest illuminator source of a plurality of illuminator sources; determining, based on a plurality of image sensors and an sensor activation sequence, a chosen image sensor of the plurality of image sensors for an image processing operation; and activating a chosen illuminator source of the plurality of illuminator sources, the chosen illuminator source associated with the chosen image sensor.

Abstract: Immersive 3D video content includes a plurality of preferably overlapping cells, each cell representative of a volume in the content, wherein a cell providing both content corresponding to a virtual central camera in the cell and parallax information from virtual peripheral cameras around the centre position can be next to a cell providing only parallax information to be used with the content corresponding to the virtual central camera. A device for rendering immersive video, renders a viewpoint corresponding to a user's current position, tracks and predicts the user position, and if the user position moves to a cell with central camera content, retrieves the content and parallax information, and if the user position moves to a cell with only parallax information, retrieves the parallax information and, if necessary, also the cell with the content. This arrangement can reduce bandwidth and storage for the immersive 3D video content.

Abstract: A stereo image generation method and an electronic apparatus using the same are provided. The stereo image generation method includes the following steps. A two-dimensional (2D) original image corresponding to a first viewing angle is obtained, and a depth map of the 2D original image is estimated. Interpupillary distance information of a user is detected. A pixel shift processing is performed on the 2D original image according to the interpupillary distance information and the depth map to generate a reference image corresponding to a second viewing angle. An image inpainting processing is performed on the reference image to obtain a restored image. The restored image and the 2D original image are merged to generate a stereo image conforming to a stereo image format.

Abstract: A light beam emission system includes a blower that forms a flow path in which aerosol flows, an emitter that emits a laser beam, and a light guide that guides the laser beam to the flow path in which the aerosol flows. The light guide is hollow, and at least a part of the laser beam passing through the light guide and guided to the flow path propagates along the flow path of the aerosol.

Abstract: A computer-executable method for generating a side-by-side three-dimensional (3D) image includes the steps of creating a 3D mesh and estimating depth information of the raw image. The method further includes the steps of updating the left mesh area and the right mesh area of the 3D mesh based on the estimated depth information of the raw image and projecting each of the mesh vertices of the left mesh area onto a coordinate system of the side-by-side 3D image based on a left eye position, and projecting each of the mesh vertices of the right mesh area onto the coordinate system of the side-by-side 3D image based on a right eye position. The method further obtains the side-by-side 3D image by coloring the left mesh area and the right mesh area projected onto the coordinate system of the side-by-side 3D image based on the raw image.

Abstract: In an example implementation according to aspects of the present disclosure, a system includes a display, a processor and a wireless sensor. The processor receives remote wireless signals from the wireless sensor corresponding to another display. The processor determines a physical locational relationship and orientation in three-dimensional space based on the received signal. The processor logical represents the relationship and orientation in a configuration screen and sets attributes of the display based on the representation.

Abstract: A display system includes an image display device and a pair of shutter glasses. The image display device includes a display panel, a display communication circuit and a control circuit. The control circuit is configured to control the display communication circuit to transmit a shutter glasses control signal, and configured to control the display panel to alternately display a normal image and a compensate image according to a timing control signal. The pair of shutter glasses includes a pair of shutters, a glasses communication circuit and a shutter control circuit. The glasses communication circuit is configured to receive the shutter glasses control signal. The shutter control circuit is configured to alternately open and close the pair of shutters according to the shutter glasses control signal.

Abstract: A method is performed at an electronic device with a controller and a display. The method includes identifying, within a first memory, a first object that satisfies a locked criterion. For example, the first object corresponds to a head-locked object or a body-locked object. The first object is associated with a first plurality of pixel values. The method includes blitting, via the controller, the first plurality of pixel values from the first memory to a second memory. The method includes displaying, on the display, the first object by obtaining the first plurality of pixel values from the second memory. In some implementations, the method includes rendering, via a graphics processing unit (GPU), a second object that does not satisfy the locked criterion, such as a world-locked object. As compared with GPU rendering, blitting is less computationally expensive.

Abstract: Embodiments of the present application provides a display panel and a display device, the display panel includes a display panel body; a first dimming layer is disposed on one side of the display panel body, the first dimming layer includes a plurality of light shielding members and a plurality of light receiving members, the plurality of light shielding members are disposed at intervals, each light receiving member is disposed between two adjacent light shielding members; wherein the plurality of light receiving members is a lens structure in a first mode. A display effect of the display panel at a specific viewing angle is improved, and the display panel has an anti-peep function.

Abstract: There is provided an image display apparatus that makes it possible to automatically orient a front face of a three-dimensional object represented by a three-dimensional image to a user. There are provided: a display unit that displays the three-dimensional image, by which the three-dimensional object appears to exist in a space partitioned by members configuring an outer surface, to be visually recognizable from a plurality of circumferential directions; a direction estimation section that estimates a direction in which a user exists as seen from the display unit; and a display control section that orients a front face of the three-dimensional object displayed by the display unit in the direction in which the user exists estimated by the direction estimation section.

Abstract: Systems and methods involving an intraocular implant with input and/or output electronics are described. In some embodiments, the system includes an intraocular lens having at least one optic operably coupled to a haptic, one or more input electronics on the haptic and/or the optic; and one or more output electronics on the haptic and/or the optic for receiving and/or transmitting data.

Abstract: A system can include head-mounted devices that collaborate to process views from cameras of the respective head-mounted devices and identify objects from different perspectives and/or objects that are within the view of only one of the head-mounted devices. Sharing sensory input between multiple head-mounted devices can complement and enhance individual units by interpreting and reconstructing objects, surfaces, and/or an external environment with perceptive data from multiple angles and positions, which also reduces occlusions and inaccuracies. As more detailed information is available at a specific moment in time, the speed and accuracy of object recognition, hand and body tracking, surface mapping, and/or digital reconstruction can be improved. Such collaboration can provide more effective and efficient mapping of space, surfaces, objects, gestures and users.

Abstract: A virtual image display device has a function of projecting a prescribed virtual image video within a visual field of a user and detects an actual visual recognition distance from the user to an object relating to a visually recognized object at which the user is gazing. A virtual image light generating unit has a function of generating a plurality of virtual image lights independent of each other and a virtual-image-light transmitting and projecting unit that has a function of transmitting and projecting the virtual image light to left and right eyes of the user through substantially the same optical path to allow a prescribed virtual image video to be visually recognized at a prescribed position within the visual field of the user. Additionally, a virtual-image visual recognition distance control unit that has a function of performing variable control of a visual recognition distance of a virtual image.

Abstract: Described herein are systems and methods of converting media dimensions. A device may identify a set of frames from a video in a first orientation as belonging to a scene. The device may receive a selected coordinate on a frame of the set of frames for the scene. The device may identify a first region within the frame including a first feature corresponding to the selected coordinate and a second region within the frame including a second feature. The device may generate a first score for the first feature and a second score for the second feature. The first score may be greater than the second score based on the first feature corresponding to the selected coordinate. The device may crop the frame to include the first region and the second region within a predetermined display area comprising a subset of regions of the frame in a second orientation.

Abstract: A mechanism is described for facilitating cinematic space-time view synthesis in computing environments according to one embodiment. A method of embodiments, as described herein, includes capturing, by one or more cameras, multiple images at multiple positions or multiple points in times, where the multiple images represent multiple views of an object or a scene, where the one or more cameras are coupled to one or more processors of a computing device. The method further includes synthesizing, by a neural network, the multiple images into a single image including a middle image of the multiple images and representing an intermediary view of the multiple views.

Abstract: To provide a display apparatus that makes it possible to further improve a performance in controlling video presentation according to characteristics of an eyeball of a user. A display apparatus is provided that includes a light source; a processor that performs processing on a distribution of characteristics of an eyeball; a monitoring section that monitors a state of the eyeball; a matching section that performs matching on the distribution of the characteristics of the eyeball and the state of the eyeball; and an irradiator that irradiates a specified position on a retina with video display light emitted by the light source.

Abstract: A method and apparatus for controlling a head-up display (HUD) considering an eye tracking status are provided. The method includes identifying an eye tracking status based on a result of an eye tracking, and identifying a rendering mode for an HUD image to be one of a two-dimensional (2D) rendering mode and a three-dimensional (3D) rendering mode based on the eye tracking status.

Abstract: Systems and methods disclosed provided a virtual reality experience, including: a set of motorized pads for coupling to feet of a user; a means of communication between the set of motorized pads and a computing environment operating a virtual reality headset; such that the set of motorized pads are configured to provide pressure on a user's feet as an avatar within a virtual environment traverses the environment. Systems and methods disclosed further provide a multiuser virtual reality experience. Systems and methods disclosed further provide a multiuser experience including generation of a common environment viewable in the virtual reality headsets; and recording a tour including audio data as the first user describes the common environment.

Abstract: The disclosure provides a method for mitigating 3D crosstalk and a 3D display. The method includes: detecting first and second eye positions of a user, and determining a viewing angle of the user and a rotation angle of a head of the user accordingly; estimating a first reference position and a first midpoint position between first and second eyes of the user based on the first and second eye positions of the user; obtaining a second reference position, and estimating a difference between the first and second reference positions; correcting the first midpoint position to a second midpoint position based on the rotation angle of the user and the difference; and determining a first pixel for projecting to the first eye and a second pixel for projecting to the second eye among the pixels of the 3D display based on the second midpoint position.

Abstract: A display device includes a display panel, a lens array disposed on a first surface of the display panel and including a plurality of lenses, and an optical filter disposed on the first surface of the display panel. The optical filter includes a plurality of first portions and a plurality of second portions which are alternately arranged in a first direction parallel to the first surface of the display panel. Each of the plurality of first portions has a first transmittance value. Each of the plurality of second portions has a symmetric light transmittance distribution in which a transmittance value increases from the center having a second transmittance value to each of opposite ends having a third transmittance value.

Abstract: An electronic device is provided.

Abstract: An orthogonal or multi-dimensional fabric user interface is described herein. A remote server executes an operating system that provides a multi-dimensional fabric user interface for storing content for a particular user. The user can access select content by manipulating the multi-dimensional fabric user interface through a graphical user interface displayed on a personal mobile computing device. In this way, the user experiences and manipulates various data dimensions around the specific content they are accessing, rather than selecting a particular file structure location. The remote server also enables the user to enter a first location side of a portal and travel to a virtual representation a second actual physical location in the multi-dimensional fabric user interface from a virtual representation of a first actual physical location in the multi-dimensional fabric user interface.

Abstract: Augmented reality systems provide graphics over views from a mobile device for both in-venue and remote viewing of a sporting or other event. A server system can provide a transformation between the coordinate system of a mobile device (smart phone, tablet computer, head mounted display) and a real world coordinate system. Requested graphics for the event are displayed over a view of an event.

Abstract: A method includes a computing system receiving an image of a real-world environment, the image including at least a portion of a hand of a user of an artificial reality device, the hand comprising a palm and a plurality of fingers. The computing system determines a hand pose of the hand using the image, and defines, based on the hand pose, a three-dimensional surface positioned in the palm of the hand. The computing system determines, based on the hand pose, distances between predetermined portions of the plurality of fingers and the three-dimensional surface. The computing system assigns, based on the distances, a pose value for each of the plurality of fingers of the hand and determines, based on the pose values for the plurality of fingers, a grab state of the hand.

Abstract: The present disclosure relates to methods and apparatus for graphics processing. The apparatus may configure a plurality of billboards associated with a viewpoint of a first frame of a plurality of frames, the plurality of billboards being configured in one or more layers at least partially around the viewpoint, the configuration of the plurality of billboards being based on one or more volumetric elements between at least one of the plurality of billboards and the viewpoint. The apparatus may also render an image associated with each of the one or more volumetric elements between at least one billboard of the plurality of billboards and the viewpoint, the rendered image including a set of pixels. The apparatus may also store data in the at least one billboard based on the rendered image associated with each of the one or more volumetric elements, the data corresponding to the set of pixels.

Abstract: Provided are a display substrate, a preparation method and a driving method thereof, and a display apparatus. The display substrate includes a circuit substrate, a plurality of elastic electrode pillars disposed on the circuit substrate, and a plurality of second addressing electrodes and a plurality of light-emitting elements disposed on the elastic electrode pillars, the circuit substrate includes an addressing circuit and a plurality of first addressing electrodes, wherein the addressing circuit is configured to provide a first electrostatic voltage to the first addressing electrodes and a second electrostatic voltage to the second addressing electrodes; the first electrostatic voltage and the second electrostatic voltage are configured to control the deflection angle of the elastic electrode pillar.

Abstract: A display device comprises: a display panel including a first display area comprising a first pixels, and a second display area comprising a second pixels, each pixel including a light emitting element; a data driver circuit configured to output data voltages of an image to the first and second pixels; a gate driver configured to output scan signals to the first and second pixels; and a power supply configured to generate a low-potential power supply voltage that is applied to the light emitting element included in each pixel, the low-potential power supply voltage switching between a first level such that the light emitting element is capable of emitting light, and a second level such that the light emitting element cannot emit light, wherein a frame period of the display device includes an addressing period during which the low-potential power supply voltage switches from the second level to the first level.

Abstract: A system and method are disclosed to generate one or more mixed-reality visualizations and objects to facilitate efficient interaction with large volumes of data. Embodiments include a computer comprising a processor and memory and a mixed-reality display device comprising a display and one or more sensors. Embodiments generate a mixed-reality object comprising a first cuboid, the first cuboid comprising one or more adjustable display dimensions corresponding to one or more key process indicators (KPIs) and one or more cubelets divided along at least one of the one or more adjustable display dimensions. Embodiments display the mixed-reality object on the display, and adjust at least one of the one or more adjustable display dimensions in response to receiving a first input to the one or more sensors. In response to a second input, embodiments transform the one or more cubelets of the first cuboid.

Abstract: Disclosed herein are systems and methods for using printing process data to predict quality measures for three-dimensional (3D) printed objects and properties of the materials comprising the 3D objects. Printing may be performed using resistive or Joule printing. The system may include a computer communicatively coupled to a 3D printing apparatus, which may store printing parameters. The 3D printing apparatus may be able to take measurements during a print job, and record those measurements in memory. The 3D printing apparatus may also be able to record printing states before, during, and/or after printing. A combination of printing states, printing parameters, and measurements may be analyzed, for example, by a machine learning algorithm, in order to predict material properties and quality measures.

Abstract: A light field display method includes: generating a pixel light field information database (S1); processing, according to different depth positions of an original three-dimensional image, slice images corresponding to the different depth positions and pixel light field information at the different depth positions, to obtain recorded images of the slice images of the original three-dimensional image at the different depth positions (S2); and superimposing the recorded images of the slice images of the original three-dimensional image at the different depth positions, to obtain a microcell array image of the original three-dimensional image (S3). A light field display system has a database generator (101), a recorded image generator (102), and a superimposer (103) which implement the described functions. A non-transitory computer readable storage medium stores thereon a computer program for implementing the method. A display panel includes the non-transitory computer readable storage medium.

Abstract: A naked-eye stereoscopic display system including a display, an optical element, and a controller is provided. The display is adapted to emit a plurality of image beams, and includes a plurality of display regions. Each of the display regions includes a plurality of first sub-display regions and a second sub-display region. A light configuration is performed on the image beams by the optical element, and then the image beams are projected out of the naked-eye stereoscopic display. The controller is electrically connected with the display. The controller controls the display, so that a light intensity of an image beam generated by the first sub-display regions is lower than a light intensity of an image beam generated by the second sub-display region. A display method of the naked-eye stereoscopic display is also provided.

Abstract: A system and methods for a CODEC driving a real-time light field display for multi-dimensional video streaming, interactive gaming and other light field display applications is provided applying a layered scene decomposition strategy. Multi-dimensional scene data is divided into a plurality of data layers of increasing depths as the distance between a given layer and the display surface increases. Data layers which are sampled using an effective resolution function to determine a suitable sampling rate and rendered using hybrid rendering, such as perspective and oblique rendering, to encode light fields corresponding to each data layer. The resulting compressed, (layered) core representation of the multi-dimensional scene data is produced at predictable rates, reconstructed and merged at the light field display in real-time by applying view synthesis protocols, including edge adaptive interpolation, to reconstruct pixel arrays in stages (e.g. columns then rows) from reference elemental images.

Abstract: Techniques are described for expanding and/or improving the Advanced Television Systems Committee (ATSC) 3.0 television protocol in robustly delivering the next generation broadcast television services. Telepresence is provided through over-the-air (OTA) virtual reality (VR) broadcast streams.

Abstract: A display device provided by the present disclosure includes: a plurality of display units arranged in an array, wherein each display unit includes m sub-pixels, the m sub-pixels of the display unit are in one-to-one correspondence with m preset viewing areas, and m is an integer greater than or equal to 2; and refraction structures in one-to-one correspondence with the plurality of display units, wherein each refraction structure is located on a light emitting side of a display unit corresponding to the refraction structure, and the refraction structure is configured to refract light emitted from each sub-pixel of a corresponding display unit to a viewing area corresponding to the sub-pixel.

Abstract: The present technology relates to a display device that enables content having a wide dynamic range of brightness to be displayed with an appropriate brightness from a reproduction device. The display comprises circuitry configured to store display information related to high dynamic range (HDR) video and to transmit to the reproduction device an extended display identification data that includes display information representing a performance of the display device. The display device includes a monitor configured to display an image of the HDR video in accordance with brightness designated by HDR information if the monitor is capable of displaying the designated brightness and to adjust a brightness of the image of the HDR video to a brightness capability of the monitor if the monitor is not capable of displaying the designated brightness.

Abstract: Provided is a multi-image display apparatus including an image forming device configured to form a first image, a first polarization plate configured to transmit a first polarization component of the first image provided from the image forming device, a second polarization plate configured to transmit a second polarization component of a second image that is provided from a path different from the first image, the second polarization component being different from the first polarization component, a screen configured to reflect and diffuse the first image, and transmit the second image, and a polarization selective lens configured to focus the first image having the first polarization component, and transmit the second image having the second polarization component without refraction.