Abstract: A point cloud data transmission method according to embodiments comprises the steps of: acquiring point cloud data; encoding geometry information included in the point cloud data; encoding attribute information included in the point cloud data; and transmitting the encoded geometry information and the encoded attribute information.

Abstract: A method for processing point cloud data according to embodiments may encode and transmit point cloud data. The method for processing point cloud data according to embodiments may receive and decode point cloud data.

Abstract: An electronic device for discharging a pulse of current includes an energy storage medium for receiving and storing electric energy supplied from a power source, a solenoid and a control switch connectable with the energy storage medium and the power source and configured to discharge a pulse of current for energising the solenoid when the control switch is activated, whereby the solenoid moves from a first position when the solenoid is not energised, into a second position when the solenoid is energised, and the energised solenoid generates and supplies a current back to the energy storage medium, a processor configured to process the time taken to energise the solenoid, monitor the current drawn by the solenoid from the energy storage medium, and control at least one parameter of a discharged pulse; and an output module to control the discharge of the current from the energy storage medium to the solenoid.

Abstract: A vehicle interior component including a patterned padding surface positioned proximate to an occupant of the vehicle. The component includes a substrate layer with a plurality of padding projections and an exterior layer connected to the substrate layer and including a plurality of gaps matching the location of the substrate layer's plurality of padding projections. Each of the plurality of padding projections aligns with one of the plurality of gaps and is exposed above the exterior layer to thereby form a pattern of padding on the surface of the vehicle interior component.

Abstract: A computing system is provided comprising a processor is configured to execute an augmented reality avatar program to receive a second-user avatar-data object and second-user pose information, via a computer network, receive an image from a live image feed captured by a camera of the computing device, identify a virtual surface corresponding to a physical surface that appears in the image; calculate a position and a pose of a second-user avatar relative to the virtual surface based on the second-user pose information, render the second-user avatar-data object to thereby display the second-user avatar of the second user superimposed upon the image. The second-user avatar is anchored to the virtual surface according to the calculated position and pose of the second-user avatar. The virtual surface is world-locked to the physical surface in the image in a real world 3-D environment.

Abstract: A method includes a computing system associated with a first artificial-reality device accessing sensor data of a real environment, generating a first plurality of feature descriptors for the real environment, and generating a second plurality of feature descriptors for the real environment based on the first plurality of feature descriptors, wherein the second plurality of feature descriptors have lower detail than the first plurality of feature descriptors. The computing system may further cause the first plurality of feature descriptors to be transmitted using a wireless connection, wherein the transmitted first plurality of feature descriptors are configured to be converted into a third plurality of feature descriptors different from the second plurality of feature descriptors. The third plurality of feature descriptors are configured to be used by a second artificial-reality device for tracking the real environment.

Abstract: This disclosure relates to methods, non-transitory computer readable media, and systems that can render a virtual object in a digital image by using a source-specific-lighting-estimation-neural network to generate three-dimensional (“3D”) lighting parameters specific to a light source illuminating the digital image. To generate such source-specific-lighting parameters, for instance, the disclosed systems utilize a compact source-specific-lighting-estimation-neural network comprising both common network layers and network layers specific to different lighting parameters. In some embodiments, the disclosed systems further train such a source-specific-lighting-estimation-neural network to accurately estimate spatially varying lighting in a digital image based on comparisons of predicted environment maps from a differentiable-projection layer with ground-truth-environment maps.

Abstract: Disclosed is a method of configuring a Positioning Reference Signal, PRS, in each of a plurality of cells in a telecommunication network. The method of a serving base station (BS) may include transmitting a second positioning reference signal (PRS) to a user equipment (UE); receiving, from the UE, a request to request a neighbor BS to configure a first PRS to occupy (1/?)th of slot duration of a Sub Carrier Spacing (SCS) of the neighbor BS; and transmitting the request to the neighbor BS, wherein the neighbor BS having a lower (SCS) than an SCS of the serving BS, and wherein ? is the ratio of the SCS of the serving BS to the SCS of the neighbor BS.

Abstract: This specification describes systems and methods for refining point cloud data. Methods can include receiving point cloud data for a physical space, iteratively selecting points along an x, y, and z dimension, clustering the selected points into 2D histograms, determining a slope value for each 2D histogram, and removing, based on the slope value exceeding a predetermined value, points from the point cloud data. Methods can also include iteratively voxelizing each 2D histogram into predetermined mesh sizes, summating points in each voxelized 2D histogram, removing, based on determining the summation is below a predetermined sum value, points from the point cloud data, keeping, based on determining that a number of points in each voxelized 2D histogram exceeds a threshold value, a center point, selecting, for each histogram, a point, identifying, nearest neighbors in the point cloud data, removing the identified nearest neighbors from the data, and returning remaining points.

Abstract: This application provides a data processing method and device. The method includes: collecting a first image by using a camera; obtaining first point cloud data of the object based on the first image, where the first point cloud data indicates three-dimensional coordinate values of a surface point of the object in a first camera coordinate system of the first terminal; obtaining pose data of the first terminal in the first camera coordinate system based on the first image; obtaining a two-dimensional feature image based on the pose data, the first point cloud data, and the first image; generating map data based on the first point cloud data, the pose data, and the two-dimensional feature image; and sending the map data to a second terminal or a server.

Abstract: An electronic device is provided that includes an infrared (IR) camera configured to obtain user image data and user profile image data. The electronic device also includes a processor, and a data storage device having executable instructions accessible by the processor. Responsive to execution of the instructions, the processor generates latent space data based on the user image data and user profile image data, and forms an output image using generative modeling of the latent space data.

Abstract: A method includes obtaining an image of a damaged vehicle and a three-dimensional (3D) vehicle model associated with the damaged vehicle. The method also includes identifying one or more damage markers that indicate damage to the damaged vehicle based on the image. The method further includes identifying a pose of the damaged vehicle within the image. In addition, the method includes mapping the one or more damage markers onto the 3D vehicle model based on the identified pose, where the one or more mapped damage markers identify one or more locations and dimensions of the damage to the damaged vehicle on the 3D vehicle model. In some cases, one or more trained machine learning models may be used to identify the one or more damage markers, identify the pose of the damaged vehicle within the image, and/or map the one or more damage markers onto the 3D vehicle model.

Abstract: Systems and methods for processing geographical zones are provided. The method involves operating at least one processor to: define a bounding box surrounding a geographical zone; iteratively partition the bounding box into a plurality of bounding boxes by, starting with the bounding box in the first iteration: determine whether the bounding box contains more than a predetermined maximum number of vertices; divide the bounding box into two additional bounding boxes if the bounding box contains more than the predetermined maximum number of vertices, repeat the steps of determining and dividing the bounding box for the additional bounding boxes in the next iteration until each additional bounding box does not contain more than the predetermined maximum number of vertices; generate a binary tree data structure representing the geographical zone; search the binary tree data structure to determine whether a vehicle is located within one of the bounding boxes.

Abstract: The disclosure is directed to rendering visual representations of VOAs by manipulating vertices of a three-dimensional (3-D) mesh structure. In one example, a processing circuitry of a computing device may receive a 3-D mesh structure having adjustable vertices. The processing circuitry may adjust the vertices to generate an adjusted shape of the 3-D mesh structure according to an intersection between activated tissue and non-activated tissue defined by one or more stimulation parameter values.

Abstract: Various implementations disclosed herein include devices, systems, and methods that use light probes to facilitate the display of virtual objects in 3D environments. A light probe provides lighting information that describes light incident on a point in space in a 3D environment. For example, a light probe may describe such incident light using an environment map. Such lighting information can be used to provide realistic appearances for objects placed at or near light probe locations in the 3D environment. Implementations disclosed herein determine the light probe locations in real-time or other 3D environments that are generated based on a live physical environment. A digital representation of the live physical environment is used to determine where to position the light probes, how many light probes to use, and/or various light probe attributes.

Abstract: The present embodiment relates to a power management circuit and timing controller for a display device. The power management circuit optimizes power consumption by receiving analysis information from a timing controller capable of analyzing image data and changing an operating condition for a power conversion circuit based on the analysis information.

Abstract: A tracking system includes a processor, a controller, two or more light sources and a dynamic vision sensor (DVS). The light sources are of known configuration with respect to each other the controller and turn on and off in a predetermined sequence. The DVS includes an array of light-sensitive elements of known configuration. The DVS outputs signals corresponding to events at corresponding light-sensitive elements in the array in response to changes in light from the light sources. The signals indicate times of the events and locations of the corresponding light-sensitive elements. The processor determines an association between each event and one or more of the light sources and, from that association, determines an occlusion of one or more of the light sources. The processor estimates a location of an object using the determined occlusion, the known light source configuration, and the locations of the corresponding light-sensitive elements in the array.

Abstract: An encoder partitions into blocks using a set of block partition modes. The set of block partition modes includes a first partition mode for partitioning a first block, and a second block partition mode for partitioning a second block which is one of blocks obtained after the first block is partitioned. When the number of partitions of the first block partition mode is three, the second block is a center block among the blocks obtained after partitioning the first block, and the partition direction of the second block partition mode is same as the partition direction of the first block partition mode, the second block partition mode indicates that the number of partitions is only three. A parameter for identifying the second block partition mode includes a first flag indicating a horizontal or vertical partition direction, and does not include a second flag indicating the number of partitions.

Abstract: A spatial indexing system receives a video that is a sequence of frames depicting an environment, such as a floor of a construction site, and performs a spatial indexing process to automatically identify the spatial locations at which each of the images were captured. The spatial indexing system also generates an immersive model of the environment and provides a visualization interface that allows a user to view each of the images at its corresponding location within the model.

Abstract: An object recognition method related to the field of artificial intelligence comprises: collecting an object to be subjected to recognition (S101); according to a target text detection model corresponding to the object to be subjected to recognition, carrying out screening and recognition on full text information corresponding to the object to be subjected to recognition, so as to obtain point-of-interest text information therefrom (S102); and carrying out recognition on the point-of-interest text information according to a preset text recognition model (S103). A target text detection model obtains point-of-interest text information by means of carrying out screening and recognition on full text information, such that the recognition of full text information in the prior art is avoided, thus saving recognition time, and improving the recognition efficiency.

Abstract: A VR snapshot broadcasting distribution system, a distribution server, a control method for the distribution server, a program for the distribution server, and a data structure of a VR snapshot data, whereby a 3D space is kept in a 3D form and data of the 3D space is made compact are disclosed. An example distribution server includes: a shooting instruction input unit, to which unit a VR snapshot shooting instruction is input by a distributor or a viewer; an exterior appearance data constructor configured to construct exterior appearance data of the entire 3-dimensional space including the avatar, based on a VR snapshot shooting instruction; a VR snapshot data distribution unit configured to distribute, as VR snapshot data, the exterior appearance data of the entire 3-dimensional space including the avatar, which is constructed by the exterior appearance data constructor; and a display unit configured to display the VR snapshot.

Abstract: A cross reality system enables any of multiple devices to efficiently and accurately access previously stored maps and render virtual content specified in relation to those maps. The cross reality system may include a cloud-based localization service that responds to requests from devices to localize with respect to a stored map. The request may include one or more sets of feature descriptors extracted from an image of the physical world around the device. Those features may be posed relative to a coordinate frame used by the local device. The localization service may identify one or more stored maps with a matching set of features. Based on a transformation required to align the features from the device with the matching set of features, the localization service may compute and return to the device a transformation to relate its local coordinate frame to a coordinate frame of the stored map.

Abstract: A virtual reality (VR) system that includes a three-dimensional (3D) point cloud having a plurality of points, a VR viewer having a current position, a graphics processing unit (GPU), and a central processing unit (CPU). The CPU determines a field-of-view (FOV) based at least in part on the current position of the VR viewer, selects, using occlusion culling, a subset of the points based at least in part on the FOV, and provides them to the GPU. The GPU receives the subset of the plurality of points from the CPU and renders an image for display on the VR viewer based at least in part on the received subset of the plurality of points. The selecting a subset of the plurality of points is at a first frame per second (FPS) rate and the rendering is at a second FPS rate that is faster than the first FPS rate.

Abstract: A line-of-sight determination method includes: a point cloud data acquisition step of acquiring point cloud data including a first position indicating a position of a first wireless station and a plurality of second positions indicating positions on a structure serving as a candidate in which a second wireless station opposing the first wireless station is to be installed; and a line-of-sight determination step of determining whether or not there is a line of sight between the first position and at least one of the second positions, and determining whether or not there is a line of sight between the first wireless station and the structure based on the determination result.

Abstract: The present teaching relates to method, system, medium, and implementations for fusing a 3D virtual model with a 2D image associated with an organ of a patient. A key-pose is determined as an approximate position and orientation of a medical instrument with respect to the patient's organ. Based on the key-pose, an overlay is generated on a 2D image of the patient's organ, acquired by the medical instrument, by projecting the 3D virtual model on to the 2D image. A pair of feature points includes a 2D feature point from the 2D image and a corresponding 3D feature point from the 3D virtual model. The 3D coordinate of the 3D feature point is determined based on the 2D coordinate of the 2D feature point. The depth of the 3D coordinate is on a line of sight of the 2D feature point and is determined so that the projection of the 3D virtual model from the depth creates an overlay approximately matching the organ observed in the 2D image.

Abstract: A digital human interactive platform can determine a contextual response to a user input and generate a digital human. The digital human can convey the contextual response to the user in real time. The digital human can be configured to convey the contextual response with a predetermined behavior corresponding to the contextual response.

Abstract: The disclosure is directed to a method for generating a three dimensional (3D) volume including a treatment target including receiving a plurality of two dimensional (2D) input images of a patient, determining a metal artifact in each of the plurality of 2D input images, removing the metal artifacts from the plurality of 2D input images based on the determination of the metal artifact, and replacing metal artifacts with alternative pixel data to generate a plurality of filtered 2D images. A 3D volume is generated from the plurality of filtered 2D images. The plurality of 2D input images including a treatment target.

Abstract: Devices and techniques are generally described for three dimensional room modeling. In various examples, 3D mesh data representing a room may be received. Plane data comprising a plurality of planes may be received. Each plane of the plurality of planes may represent a planar surface detected in the room. In some cases, a first plurality of wall candidates for a 3D model of the room may be determined based at least in part on the plane data. A second plurality of wall candidates for the 3D model of the room may be determined by modifying the first plurality of wall candidates based on a comparison of the first plurality of wall candidates to the 3D mesh data. The 3D model of the room may be generated based at least in part on the second plurality of wall candidates.

Abstract: A page element display method and an electronic device (100 or 1500) are provided. The method includes: The electronic device (100 or 1500) displays a first interface, where the first interface includes a first page element (1401); the electronic device (100 or 1500) detects a first operation performed by a user on the first page element (1402); the electronic device (100 or 1500) adjusts a size of the first page element in response to the first operation (1403); and the electronic device (100 or 1500) automatically displays a second interface after adjusting the size of the first page element.

Abstract: The present invention is to perform appropriate display on a display of a navigation system. A navigation system that displays an image on a display and presents the image to an occupant of a vehicle, acquires data for generating drawing elements from at least one information source and stores the data in a temporary storage for each of the drawing elements included in the image, selects, from among normal available data stored in the temporary storage, data based on the information source determined in accordance with a predetermined setting, and causes a drawing processor to draw an image combining the drawing elements based on the selected data.

Abstract: A computer-implemented method and a corresponding apparatus are provided for the provision of a two-dimensional visualization image having a plurality of visualization pixels for the visualization of a three-dimensional object represented by volume data for a user. Context information for the visualization is obtained by the evaluation of natural language and is taken into account in the visualization. The natural language can be in the form of electronic documents, which are assigned or can be assigned to the visualization process. In addition, the natural language can be in the form of a speech input of a user, during or after the visualization.

Abstract: A game processing method executed by an information processing device configured to perform transmission/reception of signals to/from a display part configured to be attachable to a head of a player to display a virtual image superimposed on an image in real space, the method includes causing the display part to display an image of a virtual object, adjusting at least one of a position or an orientation of the virtual object relative to the image in real space, based on an input of the player, causing the display part to display an image of a virtual game character so as to be arranged coinciding with the adjusted at least one of the position or the orientation of the virtual object, and hiding the image of the virtual object when the image of the game character is displayed.

Abstract: Systems and methods for color coordination for scanned products are provided. A kiosk has an input device, a display device, and an optical code reader and has access to a product/color database. The kiosk is configured to receive an identification code scanned by the optical code reader, determine a product sample associated with the identification code, determine at least one coordinating color for the flooring product based on the product/color database, display a simulated environment including a sample room having at least one selectable surface, display on the display device the at least one coordinating color, receive with the input device a selected color, receive with the input device a selected surface from the sample room, and display on the display device the simulated environment showing the sample room with the product sample and with the selected color on the selected surface of the sample room.

Abstract: A system for deformation or bending correction in an Augmented Reality (AR) system. Sensors are positioned in a frame of a head-worn AR system to sense forces or pressure acting on the frame by temple pieces attached to the frame. The sensed forces or pressure are used in conjunction with a model of the frame to determine a corrected model of the frame. The corrected model is used to correct video data captured by the AR system and to correct a video virtual overlay that is provided to a user wearing the head-worn AR system.

Abstract: An electronic device includes a capacitive sense array and is coupled to a stylus including a conductive tip and a conductive wire module. The conductive tip and wire module of the stylus are driven by a tip drive signal and a wire drive signal simultaneously. The tip and wire drive signals have a single stylus drive frequency. While the conductive tip and wire module are driven by the tip and wire drive signals, the electronic device scans the capacitive sense array to obtain a plurality of capacitive sense signals from a plurality of sense electrodes of the capacitive sense array. The electronic device generates a composite image of the capacitive sense array based on the plurality of capacitive sense signals and processes the composite image to determine one or more orientation parameters (e.g., a tilt angle) of the stylus with respect to a surface of the capacitive sense array.

Abstract: Live event production and distribution networks, systems, apparatuses and methods related thereto are described herein. The described innovations may be used not only to present live events to audiences, but to do so in a way that provides audience energy and feedback to the performer(s) (e.g., a band) in a manner akin to that which they receive during a traditional live performance, thereby energizing and motivating the performers to give the best live performance they can, even in the absence of a co-located live audience. Some or all of the audience members may be represented by a visual surrogate displayed on an audience feedback screen set up to be viewable by the performers. The screen may be sized to fill a curtain window of stage on which the performers are performing, and the performers may optionally interact with one or more people in the audience during the live performance.

Abstract: A method is performed at an electronic device with one or more processors and a non-transitory memory. The method includes obtaining hair curve data that represents a plurality of hair strands. Each of the plurality of hair strands includes a respective plurality of hair points. The method includes projecting the plurality of hair strands to a hair mesh that is associated with a virtual agent. The method includes rendering a first subset of the plurality of hair strands in order to generate a hair texture based on a corresponding portion of the projection. The method includes rendering the hair texture in association with the virtual agent in order to generate a display render. In some implementations, the method includes changing the number of hair strands rendered during a particular rendering cycle, enabling dynamic generation of hair textures across rendering cycles.

Abstract: An information processing apparatus that generates an image to be displayed, based on shape data indicating a shape of an object and surface characteristics data indicating surface characteristics of the object includes an acquisition unit configured to obtain a plurality of pieces of the shape data with different resolutions and the surface characteristics data, a setting unit configured to set a display area including at least part of the object, and a generation unit configured to generate the image to be displayed, based on one of the plurality of pieces of shape data according to the display area and the surface characteristics data.

Abstract: A measurement system includes a processor. Based on information measured by a camera that takes an image of a measurement target and an auxiliary object arranged on the measurement target, the processor acquires first point cloud data representing a three-dimensional geometry of the measurement target including the auxiliary object. Based on the first point cloud data and second point cloud data that is known and that represents a three-dimensional geometry of the measurement target, the processor eliminates point cloud data of the auxiliary object from the first point cloud data. The processor compares the first point cloud data, from which the point cloud data of the auxiliary object has been eliminated, with the second point cloud data. The processor displays information relating to a result of comparison on a display device.

Abstract: A system for determining a length of an object includes a rod, an imaging device couplable to the rod, a laser rangefinder, one or more sensors, and a processor. The processor can receive image data, the orientation of the rod relative to the surface, and the distance to the surface from the imaging device and can determine the length of the rod. A system for surveying trees within a plot includes an imaging device, one or more sensors for measuring at least one of a pitch, a roll, or a compass bearing of the imaging device, and one or more processors configured to receive images of the plot including trees within the plot, associate one or more sensor measurements with the images, store the images with their associated measurements, and generate a survey of trees in the plot using at least the images and the one or more sensor measurements.

Abstract: A method for determining a visible angle of a target object, an electronic device, and a storage medium are provided. The method includes: acquiring first point of interest POI data of the target object, second POI data of an occluder, and a position of an observation point; determining a first tangent line and a second tangent line of the target object, passing through the position of the observation point, according to the first POI data and the position of the observation point; determining a third tangent line and a fourth tangent line of the occluder, passing through the position of the observation point, according to the second POI data and the position of the observation point; and determining a target visible angle of the target object relative to the occluder according to the first tangent line, the second tangent line, the third tangent line, and the fourth tangent line.

Abstract: A system and method for providing an anatomic orientation indicator with a patient-specific model of an anatomical structure of interest extracted from a three-dimensional (3D) ultrasound volume is provided. The method includes extracting the anatomical structure of interest from the 3D volume and generating a patient-specific model of the anatomical structure of interest. The method includes generating an anatomic orientation indicator including at least one mocked patient anatomy model of an anatomical structure adjacent the anatomical structure of interest at a position and orientation relative the patient-specific model. The method includes displaying the anatomic orientation indicator with the patient-specific model at a same first point of view. The method includes receiving an instruction to change a point of view of the patient-specific model to a second point of view and updating the displaying of the anatomic orientation indicator with the patient-specific model to the second point of view.

Abstract: Systems and methods for operating a mobile platform. The methods comprise, by a computing device: obtaining a LiDAR point cloud; using the LiDAR point cloud to generate a track for a given object in accordance with a particle filter algorithm by generating states of a given object over time (each state has a score indicating a likelihood that a cuboid would be created given an acceleration value and an angular velocity value); using the track to train a machine learning algorithm to detect and classify objects based on sensor data; and/or causing the machine learning algorithm to be used for controlling movement of the mobile platform.

Abstract: An information processing apparatus according to the present technology includes an image obtaining unit and a display control unit. The image obtaining unit obtains a plurality of first divided images obtained by dividing a first image showing a first location along a second direction substantially perpendicular to a first direction, and a plurality of second divided images obtained by dividing a second image showing a second location along the second direction. The display control unit arranges and simultaneously displays the plurality of first divided images and the plurality of second divided images along the first direction on a display device of a user at a third location.

Abstract: A method and system of image processing of omnidirectional images with a viewpoint shift.

Abstract: Aspects presented herein relate to methods and devices for graphics processing including an apparatus, e.g., a GPU. The apparatus may obtain an indication of a BVH structure including a plurality of nodes, wherein the BVH structure is associated with geometry data for a plurality of primitives in a scene, wherein each of the plurality of nodes is associated with one or more primitives, where a first level BVH includes a set of first nodes and a second level BVH includes a set of second nodes. The apparatus may also allocate information for a plurality of second nodes in the set of second nodes to at least one first node in the set of first nodes. Further, the apparatus may store the allocated information for the plurality of second nodes in the set of second nodes in the at least one first node in the set of first nodes.

Abstract: Systems and methods for video presentation and analytics for live sporting events are disclosed. At least two cameras are used for tracking objects during a live sporting event and generate video feeds to a server processor. The server processor is operable to match the video feeds and create a 3D model of the world based on the video feeds from the at least two cameras. 2D graphics are created from different perspectives based on the 3D model. Statistical data and analytical data related to object movement are produced and displayed on the 2D graphics. The present invention also provides a standard file format for object movement in space over a timeline across multiple sports.

Abstract: A processor may initiate a recording. The processor may segment the recording into one or more segments. The processor may determine, based on the identification of a primary object in a first segment of the recording, a first bit rate for the first segment of the first recording. The processor may preload one or more subsequent segments that include the primary object at the first bit rate. The processor may preload each of the one or more subsequent segments with a secondary object at a second bit rate. The second bit rate may be lower than the first bit rate. The processor may display the recording to the user.

Abstract: A method for updating a coordinate of an annotated point in a digital image due to camera movement is performed by an image processing device, which obtains a current digital image of a scene. The current digital image has been captured by a camera subsequent to movement of the camera relative the scene. The current digital image is associated with at least one annotated point. Each at least one annotated point has a respective coordinate in the current digital image. The method comprises identifying an amount of the movement by comparing position indicative information in the current digital image to position indicative information in a previous digital image of the scene. The previous digital image has been captured prior to movement of the camera. The method comprises updating the coordinate of each at least one annotated point in accordance with the identified amount of movement and a camera homography.

Abstract: To provide an input apparatus including an acquisition circuit that acquires a captured image capturing a user, a detection circuit that detects a first hand of the user from the captured image acquired by the acquisition circuit, and a display circuit that displays, when a second hand different from the first hand is detected during tracking of the first hand detected by the detection circuit, notification information corresponding to a distance between the first hand and the second hand on the display screen.