46 results about "Visual projection" patented technology

The invention relates to a simulation test platform system for researching driving behaviors, which can provide a vehicle environment and driving functions which are completely consistent with the actual driving for drivers, ensures the driving operation and the authenticity of vehicle data acquisition, and ensures the basic simulation of the indoor use of a test vehicle and the feedback of road conditions to the driving so as to provide a traffic visual simulation environment with high immersion for the drivers. The simulation test platform system comprises a driving test vehicle, a driver information acquisition system, a vehicle information acquisition and processing system, a traffic simulation visual driving module, a visual projection system, a visual simulation and a road traffic scene modeling system, a road driving resistance simulation system and a system integration module, wherein the driving test vehicle is connected with the vehicle information acquisition and processing system, and the real-time communication exchange and data feedback between the vehicle information acquisition and processing system and the traffic simulation visual driving module are carried out through the system integration module. The simulation test platform system is characterized in that the driving test vehicle is of a real mini bus, and the steering mechanism of the mini bus is disconnected.

The invention discloses a method for intelligently measuring distances of moving vehicles in front of vehicles. The method comprises the following steps of: S1, acquiring a front road video image, andcarrying out preprocessing such as image clipping, image graying, image filtration and image binarization on the image; S2, strengthening road image edge information by adoption of a Canny edge operator; S3, detecting a lane line by adoption of a Hough transformation method; S4, segmenting a vehicle bottom shadow, establishing a rectangular frame of a possible vehicle, namely, a region of interest (RIO), and carrying out accurate detection on the vehicle; S5, establishing a visual projection model, and calculating a pixel coordinate value of a midpoint on the bottom edge of the image and a pixel coordinate value of a midpoint at the bottom edge of the RIO; S6, establishing a demarcation template to demarcate parameters in a camera; S7, establishing a geometric distance measurement model;and S8, obtaining road plane coordinate system coordinates of the midpoint at the bottom edge of the image and the midpoint at the bottom edge of the RIO, and combining the demarcation result of parameters in the camera to calculate a distance between the vehicle and the front vehicle according to a distance calculation formula.

The invention discloses a pair of AR glasses and a control method thereof and relates to the technical field of visual projection devices. The pair of AR glasses comprises an optical frame, lenses, aprojection device, a power device and a controller. The pair of AR glasses is characterized by further comprising an adjustment mechanism used for adjusting the intensity ratio of incident light to reflected light of the lenses, wherein the adjustment mechanism can be arranged to be an occlusion sheet or an electrochromic film, and the illumination of light penetrating through the lenses is changed manually or according to a set triggering condition. Therefore, the light intensity ratio of a real image to a virtual image in the pair of AR glasses is more coordinated, visual coordination is realized, and the viewing sense of an AR glasses wearer is improved.

An eye imaging system having an image viewing subsystem for interfacing with an MRI patient. The imagine viewing subsystem incorporates fiber-optic illumination and imaging subsystems that enable automatic eye imaging for eye tracking. The eye imaging system analyzes motion of an patient's eye in response to visual stimuli and includes an image conveyor subsystem, an image receiving subsystem, and an image processing subsystem. The light source utilized to form the reflected images is an independent source of illumination.

The invention discloses a night-vision glasses, which belongs to the visual optical system. The invention is of a six projection microscope objective lens. Against output wavelength of 546nm and the output surface of the effective diameter of 16mm, resolution of 60lp / mm image intensifier design. This invention is a projection lens for the ''straight look'' and ''see-through (enhanced)'' night-vision glasses visual projection system chart, including the image intensifier output surface of the projection lens, and the spectroscope back-to-screen. Visual projection system replaces the traditional eyepiece system, with lighter weight, smaller size, and better image quality visual system than the traditional eyepiece. This invention provides a brand new design ideas and concepts for the night-vision of the visual design of the optical system.

A portable high-definition television and theater entertainment and audio visual system that includes a movable pod formed with at least one side wall cooperating with a generally horizontal top to define an interior component volume and with spaced apart alignment passageways therein, and at least one recessible door. A removable component cage is received in the interior component volume and is formed with alignment guides coacting with the alignment passageways. The cage carries at least one audio visual component such as a media source and a projector. The system further incorporates one or more reversible panels configured with a projection screen side and an opposite second side adapted with decorative features that conceal the projection screen side when the panel is reversed. In combination, the various embodiments of the invention establish a convergence of high-definition television with digital art.

The invention provides an obstacle detection method, device, equipment and system and a storage medium, relates to the technical field of intelligent equipment, and aims to obtain three-dimensional information of an obstacle based on monocular camera detection. The method includes performing foreground segmentation on the road condition image acquired by the monocular camera to obtain a foregroundregion image; performing obstacle extraction on the foreground area image to obtain plane information of a target obstacle under camera coordinates; and based on computer vision projection inverse transformation, substituting the plane information into a preset plane equation to obtain a three-dimensional frame of the target obstacle.

The invention discloses a construction scheme for a stereo visual projection system performing single-video-card three-channel image output and a stereo image software correction and fusion method based on an GPU (graphics processing unit), belongs to the technical field of visual simulation, overcomes the defects of larger amount, high cost, complicated scheme and the like of passive dual-machine stereo projection hardware equipment and is a multi-channel stereo visual implementation scheme with economy, feasibility and simple structure. The stereo visual system adopts a single video card to output three channels of stereo visual images to three stereo projectors and comprises a visual pattern generation system, a protection display system and a video distribution and monitoring system, segmentation of stereo images in a frame buffer as well as geometric correction and edge blending of left and right eye subgraphs is finished on the basis of a vertex shader and a pixel shader of the GPU, and complete frame buffer images are formed through splicing processing. The methods are mainly applied to visual system simulation for adopting the single video card to output three-channel left-right format or up-down format stereo images to the projectors, so that generation and projection of three-channel stereo images are realized.

The invention relates to an entry mode of pictures of a three-dimensional large scene. According to the mode, a group of positioning points is selected as positioning end points; projection coordinates are moved to the positioning end points along the spatial axial direction of a three-dimensional model; and the fusion and the transition of the three-dimensional images and panoramic pictures are realized in the moving process. The mode has the beneficial effects that in the moving process, the connection of two dimension and three dimension is realized through the fusion of the three-dimensional images and the panoramic images; in the process of entering or flying out of roaming, an observer is in the three-dimensional image observation mode; and therefore, the visual projection effect isguaranteed, the browsing experience is improved and the three-dimensional model capable of showing a real and stereoscopic projection effect is provided.

The invention relates to a method for calibrating external parameters of a distributed large-size space location system. According to the method, the difficult problems that the calibration process ofa large-size space location system is tedious, the overall optimization of the system is sensitive to primary external parameter values, the cost is high, and the like are solved. The method comprises the steps of carrying out primary calibration on the system by virtue of a two-dimensional calibration rod through supposing that a visual projection plane exists in front of an emitter, and carrying out overall calibration on the system by minimizing objective functions through Levenberg-Marquardt iterative optimization. The method has the beneficial effects that the operation process is simple, the calibration speed is high, the measurement accuracy and the working efficiency of the system are improved, and meanwhile, the system cost can be effectively lowered.

The invention discloses a combined projection method and system. The system comprises a first intelligent projection device and a second intelligent projection device; after the first intelligent projection device establishes a connection with the second intelligent projection device, and when the first intelligent projection device obtains first projection content and projects a first projection picture according to the first projection content, and the first intelligent projection device transmits synchronization projection signals to the second intelligent projection device; the second intelligent projection device obtains second projection content according to the synchronization projection signals, and projects a second projection picture according to the second projection content, and the first projection content and the second projection content are in a correlation relationship, and the first projection picture and the second projection picture are combined together to form a combined projection picture. With the combined projection method and system of the invention adopted, connection between the intelligent projection devices can be realized, and the interactive projection can be realized, and therefore, visual projection effects such as large-screen display, stereo projection and virtual augmented reality can be realized.

The application provides an optical system with projection and visual functions. The optical system, which is arranged on a head-mounted device, includes a display module, a second polarized beam splitter prism, a third polarized beam splitter prism, a projection lens group, a reflection lens group and a liquid crystal box. The liquid crystal box is fixedly arranged between the display module andthe third polarized beam splitter prism. The second polarized beam splitter prism is arranged on the side of the third polarized beam splitter prism away from the liquid crystal box. The reflection lens group is arranged on the side of the second polarized beam splitter prism away from the third polarized beam splitter prism. The projection lens group is arranged on the side of the third polarizedbeam splitter prism away from the human eyes. By adding the liquid crystal box, switching between the projection and visual functions can be realized, and users are enabled to see outside images clearly. The optical system has the characteristics of simple structure and convenience of use. A projection function is integrated into the head-mounted optical system, and the user experience can be improved.

The invention discloses a GPU-based single-graphics card three-channel stereo visual projection software calibration and fusion method, and belongs to the field of visual simulation technology. The method is based on a vertex shader and a pixel shader of a GPU to complete the segmentation of a stereo image in a frame buffer, left and right eye graph geometric correction and edge fusion, and finally, a complete frame buffer image is obtained by splicing processing. The method is suitable for single-graphics card multi-screen stereo image output, which combines the advantages of GPU programmable parallel processing so that the geometric correction and edge fusion operation for the rendering of the image are completed in the GPU, the processing speed of the geometric correction and edge fusion can be improved, and the impact of software correction and fusion on the visual rendering real-time performance is reduced.

The invention discloses an advertisement evaluation method and system based on eye movement tracking and an emotional state, and the method comprises the following steps: obtaining eye movement data, constructing a visual projection model based on a deep neural network, and obtaining a projection region of a user in an information flow advertisement according to the visual projection model; acquiring emotion data, constructing an emotion evaluation model based on a deep neural network, and judging user inverse emotion data according to the emotion evaluation model; searching a projection area related to the information flow advertisement from the visual projection model according to the judged user inverse emotion data; and adjusting advertisement putting according to the projection area. In combination with the eye movement data and the emotional state data, cognitive avoidance and psychological retrograde states possibly existing in the advertisement browsing process of the user can be recognized, and advertisement content putting adjustment is further performed according to the detected cognitive avoidance and psychological retrograde states.

The invention relates to a projection device comprising a spherical mirror, a spherical screen arranged in the front spherical screen and a projector main body for projecting the image information on the spherical screen through the spherical mirror. The projection device can improve the projecting quality and solves the problem of incomplete and non-visual projection.

A non-spherical projection display structure and system that can be optimized for the ergonomics of preferably one viewer inside the display structure or system. The structure or system is preferably for use with widescreen projectors. The non-spherical projection display structure and system creates a visual projection display and method of operating the display that has a wide horizontal and vertical field of view and uses a rear projected display structure having a projection screen surface with a thickness. The display structure has at least one section with a monotonically increasing or decreasing radius of curvature.

The invention provides AR glasses and a control method thereof, and relates to the technical field of visual projection devices.The AR glasses comprise a glasses frame, lenses, a projection device, a transparent display screen and a controller, the projection device is arranged on the glasses frame, and a to-be-projected image is projected to the lens facing the side of the eyes of a wearer so that the to-be-projected image can be projected through the reflection function of the lenses; reflecting the to-be-projected image to the eyes of the wearer; the transparent display screen is arranged on the lens on one side far away from the eyes of a wearer and is used for adjusting the intensity ratio of incident light to reflected light of the lens; the controller is connected with the transparent display screen and generates a control signal according to the to-be-projected image; the control signal is used for controlling the color and brightness change of each pixel point on the transparent display screen, so that the proportion of the light intensity of the real image and the light intensity of the virtual image in the AR glasses is more coordinated, the virtual image can be highlighted, the influence of the virtual image on the real image is greatly reduced, and the impression of a wearer of the AR glasses is improved.

A system for interacting with a computing device includes a visual projection system configured to project a visual output onto a projection surface and a haptic output device configured to deliver a haptic output to a surface of a body part of the user while the visual projection system projects the visual output onto the projection surface.

A non-spherical projection display structure and system that can be optimized for the ergonomics of preferably one viewer inside the display structure or system. The structure or system is preferably for use with widescreen projectors. The non-spherical projection display structure and system creates a visual projection display and method of operating the display that has a wide horizontal and vertical field of view and uses a rear projected display structure having a projection screen surface with a thickness. The display structure has at least one section with a monotonically increasing or decreasing radius of curvature.

The invention discloses a multi-form variable setting display device for interior design and a using method thereof, and relates to the technical field of interior design. The device includes a display panel, a magnetic plate is fixedly connected to the bottom of the inner wall of the display plate, a first vertical mounting plate and a second vertical mounting plate are arranged on the left sideand the right side of the top of the display plate correspondingly, five projection lamps project visual projections of a master bedroom, a secondary bedroom, a study, a kitchen and a toilet respectively, a certain friction force can be provided through rubber blocks between the display plate and the mounting plates, so that the fixity and the stability of the setting mounting plate on the displayplate can be ensured; meanwhile, the number of the connecting plates can be adjusted according to requirements, so that the size of the room is adjusted. The device is suitable for display in rooms of different sizes, indoor rooms adopt projection structures, position adjustment and fixation are convenient, only simple placement and installation are needed, independent splicing is not needed, thestructure is simple, and use is more convenient.

The invention relates to a video and audio data processing system. The system comprises a display wall, which includes a central projection screen, a left projection screen and a right projection screen; a projection subsystem, wherein a central screen projector projects a central light image to the central projection screen, a left screen projector projects a left light image to the left projection screen, and a right screen projector projects a right light image to the right projection screen; the left light image, the central light image and the right light image form a 3D visual projection light image; a plurality of cameras, which respectively collect multi-channel live video data including the projection light image; a switch desk, which switches multi-channel live audio data into record audio data; a digital mixer, which performs tuning treatment on multi-channel audio data and generates record sound data; and an embedded device, which embeds the record sound data into the record audio data, and generates video and audio program data. The video and audio data processing system provided by the invention is scientific and reasonable in projection mode, and projected light and shadow images have an effect of 3D visualization.

A display structure with a dimming module, and a biasing dimming module and a parallel plate dimming module thereof are provided. The display structure includes a visual projection display module provided with an ambient-light-contact end and a dimming module disposed between the ambient-light-contact end and ambient light. Thus the ambient light transmitted through the visual projection display module and used as backlight is controlled effectively by the display structure for providing the best vision.

The invention provides a visual projection calibration method and a device. The method comprises the following steps: S1, acquiring image information; S2, identifying a touch area, a display area, a first reference point corresponding to the touch area and a second reference point corresponding to the display area according to the image information; S3, virtualizing a plurality of target points onthe identified display area, and respectively calculating input coordinates of each target point relative to the first reference point and output coordinates of each target point relative to the second reference point; S4, importing the input coordinates and the output coordinates corresponding to the target points into a preset training model to obtain calibration parameters corresponding to thecurrent touch area and the display area; and S5, calibrating the coordinate points on the touch area and the display area according to the calibration parameters. By the adoption of the method, automatic calibration of the coordinate points of the touch area and the display area can be achieved without manual clicking, calibration errors are effectively reduced, and calibration accuracy is improved.

The invention discloses a semi-automatic parking system, comprising: a vehicle body positioning unit for simulating the shape of the vehicle body, measuring the distance between the vehicle body and surrounding obstacles, and simulating the surrounding environment of the vehicle body according to the distance; a display unit for The vehicle body shape simulated by the vehicle door positioning unit and the surrounding environment form a visual projection; the vehicle body control unit is used to judge whether to brake the vehicle body according to the distance measured by the vehicle body positioning unit. Use the door positioning unit to simulate the body and the surrounding environment, and transmit the projection to the customer through the display unit. When the driver reverses the car through the observation projection, it is equivalent to standing outside the car. The viewing angle of the traditional reversing image is more comprehensive. The invention also discloses a car and a parking method using the above-mentioned semi-automatic parking system.

An electronic device with a liquid crystal display (LCD), such as a foldable cellular phone, improves the visibility of the LCD by making the content displayed on the LCD visible even when the device is closed. The foldable electronic device includes: a display unit casing and an operating unit casing, which are connected by a hinge in a manner that allows each casing to rotate. The display unit housing is fitted with a projected LCD which is visible on both sides, and the operating unit housing has input keys. The device also includes a display control means for controlling whether the LCD needs to display reversed display content according to whether the user views the LCD from the front or from the back. A surface of the operation unit cabinet which is in face-to-face contact with the LCD when the device is folded is subjected to reflective processing for reflecting light to the LCD. In addition, a light source provided inside the operating unit for illuminating the input keys also illuminates the LCD when the device is folded.

The invention discloses a high-dimensional vector data visualization method and system based on double-layer anchor point graph projection optimization, and the method comprises the steps: (1) carrying out the K-means clustering of an original high-dimensional vector data set D, and an obtained clustering center serving as an anchor point set A; (2) establishing an inverted index of the high-dimensional vector data according to the anchor point set A; (3) establishing an approximate kD neighbor graph GD of the data set D by using the inverted index; (4) for each point d in the data set D, violently searching c anchor points closest to the point d, and updating the c anchor points as neighbors of the point d to a neighbor graph GD; (5) constructing a kA neighbor graph GA on the anchor pointset A in a violent retrieval mode; and (6) based on the high-dimensional spatial data structure information represented by GD and GA, generating a low-dimensional spatial visual projection by using adouble-layer projection optimization algorithm. By means of the method and the system, global macrostructure information and local microstructure information in a high-dimensional space can be reserved together, and high-quality layout information is obtained.

The invention relates to a method of entering a picture of a three-dimensional large scene. A group of positioning points is selected as the positioning end point, and the projection coordinates move along the spatial axis of the three-dimensional model to the positioning end point. During the movement, the three-dimensional picture merges and transitions to the panoramic picture; the moving process , the connection between two-dimensional and three-dimensional is realized through the fusion of three-dimensional pictures and panoramic pictures. During the process of entering or flying out of the roaming process, the observer is in the three-dimensional picture observation mode, which ensures the visual projection effect, improves the browsing experience, and ensures a realistic and three-dimensional projection. 3D model of the effect.

The invention discloses a method for acquiring attitude angles of multi-thrusters with a joint objective function based on visual projection scale factor sets. Step 1: Establish the coordinate system of the multi-vehicle propeller; Step 2: The projection scale factor set is γ={γ 1 ,γ 2 ,...,γ n}; Step 3: Optimizing the projection scale factor set, establishing multi-propeller attitude angles to obtain the minimum objective function; Step 4: Performing antisymmetric matrix deformation processing on the minimum objective function in Step 3, and solving the form through multivariate polynomial equations; Step 5: Step 4 is further processed by Kronecker product sum matrix vectorization function; Step 6: Therefore, the minimum objective function can finally be expressed as a polynomial. The area array CCD camera realizes high-speed acquisition of multi-thruster images, avoids the limitation of sensor response speed in traditional contact measurement, and has a fast response speed. The high-speed camera can be quickly arranged, which is convenient for implementation and is not limited by space.

The invention relates to a simulation test platform system for researching driving behaviors, which can provide a vehicle environment and driving functions which are completely consistent with the actual driving for drivers, ensures the driving operation and the authenticity of vehicle data acquisition, and ensures the basic simulation of the indoor use of a test vehicle and the feedback of road conditions to the driving so as to provide a traffic visual simulation environment with high immersion for the drivers. The simulation test platform system comprises a driving test vehicle, a driver information acquisition system, a vehicle information acquisition and processing system, a traffic simulation visual driving module, a visual projection system, a visual simulation and a road traffic scene modeling system, a road driving resistance simulation system and a system integration module, wherein the driving test vehicle is connected with the vehicle information acquisition and processingsystem, and the real-time communication exchange and data feedback between the vehicle information acquisition and processing system and the traffic simulation visual driving module are carried out through the system integration module. The simulation test platform system is characterized in that the driving test vehicle is of a real mini bus, and the steering mechanism of the mini bus is disconnected.