793 results about "Projection display" patented technology

The invention relates to the technical field of projection display, and discloses a multi-projection picture splicing method and system based on geometric correction. The method comprises the following steps: acquiring initial parameters and original picture data of the multi-projection equipment, wherein the original data contains an overlapped region image and is acquired according to a preset direction; geometric correction is carried out on the original image, geometric distortion feature points are extracted, and a mapping relation matrix is generated; dividing projection boundaries based on the matrix, and adjusting parameters to form a correction parameter set; performing spatial registration on the picture data according to the parameter set to generate multi-channel data; and carrying out fusion processing on the multi-channel data overlapping region, eliminating light intensity difference and color deviation, and generating a continuous splicing picture. The system comprises a data acquisition module, a geometric correction module, a parameter adjustment module, a space registration module and a fusion processing module. Through high-precision geometric correction, adaptive fusion and dynamic adjustment, the precision and visual effect of multi-projection image splicing are improved, and the method is suitable for large-size display scenes and has the advantages of being high in environmental adaptability, high in automation degree and the like.

Disclosed is a wearable electronic device. The wearable electronic device includes: a display module comprising a display; a housing to which the display module is coupled; and a projection display disposed on a side portion of the housing and configured to display information on a display area adjacent to the housing, the projection display may include: a substrate disposed along a mounting surface provided on a side portion of the housing; a plurality of light-emitting devices comprising light-emitting circuitry disposed on the substrate in a grating arrangement; and a plurality of micro-lenses covering a light-emitting surface of the plurality of light-emitting devices.

The invention discloses a projection display system and near-to-eye display equipment. The projection display system comprises a beam splitter prism, a display element and an imaging assembly. The beam splitter prism is matched with a reflector, a field lens and a single lens in the imaging assembly, and light in the projection display system is turned. Light emitted by the display element enters the beam splitter prism after passing through the field lens and is transmitted to the reflector by the beam splitter prism, the reflector reflects the light, and the reflected light enters the beam splitter prism again, is reflected to the single lens by the beam splitter prism and then is emitted from the light emitting side of the projection display system. Therefore, the imaging light path is compressed, the size of the projection display system is effectively reduced, and the miniaturization of the projection display system is realized.

The embodiment of the invention discloses a display device and a screen projection display method, and the method comprises the steps: after receiving a screen projection connection instruction sent by a terminal device, sending a starting notice to a player through a screen projection service, and enabling the player to build a data pipeline based on the starting notice. And controlling the player to receive the code stream data sent by the terminal equipment after the data pipeline is established, and processing the code stream data by using the data pipeline when the player receives the code stream data to obtain a video picture and an audio. The display displays a video picture, and the audio output device plays audio. According to the embodiment of the invention, data transmission is directly carried out through the terminal equipment and the player, so that communication delay caused by inter-process communication is reduced, the received code stream data is directly processed after the player establishes the data pipeline, cache is reduced, and the delay time of screen projection display is shortened.

The invention discloses an intraoperative pulmonary nodule positioning method and system based on fusion of a CT image and an endoscope video. The method comprises the following steps: firstly, constructing a three-dimensional lung model containing a pulmonary nodule position based on preoperative high-resolution CT data; generating a real-time lung surface model by using an endoscope video stream through a three-dimensional reconstruction technology during the operation; a feature point extraction and matching algorithm is adopted, and a non-rigid registration technology is combined to realize accurate registration of the preoperative model and the intraoperative dynamic model; projection display of pulmonary nodules in a real-time endoscope visual field is established through space coordinate mapping, and a dynamic compensation algorithm is developed to solve the problem of tissue deformation caused by respiratory movement and instrument operation. Meanwhile, the virtual nodule position is overlaid to an endoscope video picture through the augmented reality technology, and visual intraoperative navigation is provided for surgeons. The method effectively solves the technical bottleneck that a traditional method depends on a metal marker and cannot adapt to intraoperative tissue deformation and the like, and has clinical practical value.

A condenser lens (21) comprises a first surface (211) and a second surface (212). Light including components of the red band, the green band, and the blue band is incident on the first surface (211). The incident light including the components of the red band, green band, and blue band is emitted from the second surface (212). An aspherical convex lens section (213) is formed in the center of the second surface (212). An aspherical concave lens section (214) is formed around the convex lens section (213).

The invention discloses a user guiding method and a user guiding system for a parking lot. The user guiding method comprises the following steps: at least determining a first target point corresponding to a variable target parking space according to an electronic map of the parking lot; obtaining an initial navigation map of an optimal path from the real-time position to the first target point according to the real-time position of a vehicle in the parking lot; converting the initial navigation map into a projection navigation map formed by a guide pattern, and projecting the projection navigation map on the ground for display through a vehicle lamp; and driving the vehicle to a final target parking space corresponding to the first target point according to the guidance of the projection navigation map. By executing the steps, the parking space navigation path can be dynamically adjusted according to the real-time occupation state of the parking space, and the parking space navigation path is dynamically and accurately projected and displayed by using the existing vehicle lamp in the parking space searching process of the user, so that the parking efficiency is improved, and meanwhile, the safety in the parking space searching process is also improved.

The utility model relates to the technical field of projection display, in particular to a laser speckle eliminator and projection equipment, the laser speckle eliminator comprises a stator part and a rotor part, the stator part comprises a substrate, and a vibration assembly and a first diffusion sheet which are arranged on the substrate; the mover part comprises an elastic assembly connected with the substrate and a second diffusion sheet arranged on the elastic assembly, and the second diffusion sheet and the first diffusion sheet are oppositely arranged; when the vibration assembly vibrates, the elastic assembly drives the second diffusion sheet to vibrate through resonance so that the second diffusion sheet can move relative to the first diffusion sheet, and the laser speckle eliminator does not need an electromagnetic system, reduces parts and is simple in structure.

A projection display device including a liquid crystal panel including a panel pixel, an optical path shifting element that shifts a projection position of a projection pixel projected every four unit period for example, and a display control circuit that controls the liquid crystal panel and the optical path shifting element are provided. The display control circuit supplies a data signal corresponding to a gradation level designated by video pixel data in video data to the panel pixel for each of the unit periods, controls the projection position for each of the unit periods for the optical path shifting element, and the optical path shifting element causes shifting to a target projection position that is a target in response to passage of the target projection position, for each unit period.

The embodiment of the invention belongs to the projection display technology, and provides a head-up display device which is applied to a carrying tool and comprises an image generation unit used for generating an image light beam and emitting the image light beam to a light modulation element; the light modulation element is located on the light emitting side of the image generation unit and used for modulating the image light beam and emitting the modulated image light beam to the micro-optical element; the micro-optical element comprises a plurality of areas, the plurality of areas at least comprise a first effective area, and the first effective area is used for reflecting the image light beam to human eyes; the multiple areas further comprise the target area, the light transmittance of the target area is higher than that of the first effective area, the light transmittance of the micro-optical element is improved based on the target area, and the application range of the head-up display device is widened.

A camera monitor system (CMS) for a vehicle includes at least one rear-facing camera that is configured to capture images from a field of view alongside the vehicle. At least one display depicts the captured images to an operator and includes a transparent medium that has at least one display area. A projector that is configured to project the captured images on the display area. A controller is in communication with the at least one camera and the projector. The controller is configured to command the projector to depict the captured images in response to a vehicle operating parameter.

The invention discloses an interactive projection system and method based on structured light perception and image anti-distortion, and relates to the technical field of interactive projection, and the method comprises a structured light perception module which is used for obtaining a projection plane depth image and an object image in a projection area; the projection modeling and object recognition module is used for constructing a change relation from a plane coordinate to a three-dimensional world coordinate according to the projection plane depth image, and recognizing object state data according to the object image; the image control and projection display module is used for determining an original image according to the object state data; the image anti-distortion processing module is used for performing pre-transformation processing on the original image based on the grid model and the projection device parameters to generate an anti-distortion image; and the image control and projection display module is also used for projecting the anti-distortion image to the projection area in real time. The interactive experience and the projection effect can be remarkably improved.

The invention discloses an AI-supported multi-modal desktop interactive projection method and system, and the method comprises the following steps: synchronously collecting visual signals, tactile data and voice input in a desktop projection environment, and obtaining a multi-modal information set after data fusion; calculating priority weight distribution of each mode according to the multi-mode information set, and obtaining a high-priority mode sequence; if the visual signals in the high-priority modal sequence are judged to be dominant, extracting a visual dominant feature group; performing cross validation on the visual dominant feature group and the tactile data, and judging information consistency after data fusion; according to an information consistency result, dynamically adjusting transparency control parameters of projection layering to obtain optimized hierarchical configuration; and updating the projection display content according to the optimized hierarchical configuration, and outputting the final projection content. According to the method, the interaction real-time performance and immersion of desktop projection are improved, and finally the technical effects of optimizing user experience and improving system intelligence are achieved.

The invention belongs to the technical field of projection display, and particularly relates to a micro-projection lens and projection equipment, the micro-projection lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis direction, the first lens, the second lens and the fifth lens respectively have positive focal power, and the third lens and the fourth lens respectively have negative focal power; wherein under the same temperature variation, the focal power variation of the second lens is smaller than the other focal power variation; the focal power phi 2 of the second lens and the focal power phi 3 of the third lens meet the condition that phi 2 / phi 3 is greater than or equal to 0.5 and less than or equal to 0.7; and / or the effective focal length f2 of the second lens and the effective focal length f3 of the third lens respectively satisfy the following conditions with the total effective focal length EFL: 0.5 < = f2 / EFL < = 1.0, and-1.0 < = f3 / EFL < =-0.2. The micro projection lens is good in temperature drift stability, is not liable to defocus after being used for a long time, and improves the use experience of a user.

The invention discloses a virtualized screen projection method, device and equipment, a storage medium and a program product, and the screen projection method comprises the steps: running a graphic synthesizer in a system control domain, and obtaining image data of different operation system domains through the graphic synthesizer in a cross-domain manner; transmitting the acquired image data of the different operating system domains to the rear end of the system control domain; performing transparent superposition processing on the acquired image data of different operating system domains according to the position ranking priority of the image data in the system control domain to form a composite image; and outputting the composite image to a target display screen for screen projection display. According to the invention, the projection path and the image display sorting priority are determined through the system control domains, and the image data are integrated through the image projection driver and the graph synthesizer driver, so that the image data from the plurality of system control domains are superposed on one display screen for display, data transmission among the plurality of operation system domains is avoided, and the image display efficiency is improved. And the reliability of the system is effectively improved.

The invention provides a panel lamp light spot uniformity detection method and system and electronic equipment, and the method comprises the steps: analyzing the non-uniform characteristics of brightness gradient distribution according to the intensity and range information of a light spot region, carrying out the image processing of a projection image region, carrying out the quantitative evaluation of the brightness uniformity of a screen, and determining the specific region and degree data of the non-uniform brightness; if the dynamic influence range of the light interference exceeds a preset threshold value, meeting room layout adjustment and equipment position change are determined according to a light interference distribution diagram and equipment configuration parameters, the adjusted light distribution mode change is identified, and the detection priority is determined; according to the detection priority and the brightness deviation index, a brightness compensation method is adopted to carry out local correction on the specific area with the uneven brightness, and corrected brightness distribution data are obtained; and identifying the image definition index and the color rendition degree index after the brightness distribution is corrected, obtaining an area coverage proportion for clearly presenting the information, and judging whether the projection display effect reaches a preset definition standard value or not.

A retinal projection display system includes at least one visible light source for projecting a visible light image, an infrared light source for projecting infrared light, a scanning mirror having a field of view larger than the visible light image, a reflective surface on which the visible light image is projected and on which the infrared light is reflected at least partially towards an eye of a user, wherein the reflective surface is larger than the visible light image, at least one infrared photodetector for receiving reflected infrared light that reflects off of the eye of the user, and a hardware computation module comprising a processor and a memory, the hardware computation module configured to determine a gaze direction of the user based at least in part on the reflected infrared light.

The utility model provides an LED projection and sound equipment linkage system, and the system comprises a sound equipment device which is used for playing audio data; the linkage control device is connected with the audio system and is used for calling a pre-configured AI service to recognize audio content of the audio data and obtaining picture data to be displayed; and the LED direct display projection device is connected with the linkage control device and is used for carrying out projection display according to the picture data to be displayed. The LED (Light-Emitting Diode) direct display projection system can support pixel-level display of images and videos, so that the LED direct display projection device is linked with the audible device, diversified display contents can be displayed, and the technical problem that the display contents are single is solved.

1. Name of the Design Product: Projector. 2. Use of the Design Product: For projection display. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

The utility model discloses a computer heat dissipation holographic fan which comprises a mounting frame and a mounting plate, a heat dissipation assembly is mounted in the mounting frame, a rotating cylinder is rotatably mounted at the top of the mounting plate, a holographic projector is fixedly mounted in the rotating cylinder, a rectangular groove is formed in the top of the holographic projector, and the rectangular groove is formed in the top of the holographic projector. A projection lamp strip is fixedly mounted in the rectangular groove; when an arranged driving motor rotates, a connecting column can be driven to rotate, so that a holographic projector rotates, a projection lamp strip is driven to rotate, holographic projection is formed by matching the rotating holographic projector with the projection lamp strip turn-on frequency, and customized 3D models, images and videos can be projected and displayed; in addition, the user can easily upload and manage contents and create personalized and dynamic PC settings, and by means of intelligent speed regulation, wireless power supply and efficient heat dissipation capabilities, the system performance of the user can be improved, and the game atmosphere of the user can be converted into immersive visual experience.

The invention relates to laminated glass, a head-up display system and a vehicle. The laminated glass comprises a first glass plate, a second glass plate, a middle layer and an infrared reflecting layer; the projection display area is used for reflecting projection light, and the range where the projection display area is located is at least partially covered by the infrared reflecting layer; an inflection point wavelength F lambda exists in a reflection spectrum curve of the projection display area, the inflection point wavelength F lambda is located in the wave band range of 615-700 nm, and the maximum reflectivity of the projection display area in the wave band range from 460 nm to the inflection point wavelength F lambda is smaller than the maximum reflectivity of the projection display area in the wave band range from the inflection point wavelength F lambda to 780 nm; the inflection point wavelength F lambda is greater than the wavelength corresponding to the red light emission peak in the emission spectrum curve of the projection light. The selection of the inflection point wavelength F lambda can ensure that the laminated glass achieves a heat insulation effect. Meanwhile, the spectral band of the projection light does not coincide with or slightly coincide with the high-reflectivity band of the infrared reflecting layer, and the color cast abnormity of the image is reduced or even eliminated.

The utility model relates to a movable projection display device, which comprises a top seat, a bottom seat and a projector body, a rotating assembly is arranged on the top seat, a fixing assembly is arranged at the rotating end of the rotating assembly, the fixing assembly is detachably connected with the end part of the projector body, and the pitch angle of the projector body is adjusted through the rotating assembly. The top of the base is provided with a placing groove for placing a projector body, a supporting column is arranged between the top seat and the base, and four corners of the bottom of the base are respectively provided with a self-locking universal wheel. The utility model has the advantages of flexible adjustment and convenient storage.

The invention relates to the technical field of image synthesis, in particular to an interactive education projection display method and system, and the method comprises the following steps: dividing sub-blocks based on a projection image frame, marking trigger information, collecting a user path, building a linkage structure, monitoring the trigger change, integrating the frame content, continuing the static frame display, and carrying out the sorting and scheduling to generate an image frame list. According to the method, a fine-grained division mechanism for the touch response area is introduced in the fusion processing process, dynamic reconstruction of information blocks between image frames is achieved in combination with the space incidence relation of user behavior paths, and the centralized interaction area is positioned by detecting the number change of user trigger points; according to the method and the system, the multi-source teaching content is optimized, the cross-frame content is integrated to generate a more continuous image display structure, and the scheduling sequence of the interactive image frames is combined according to the priority, so that the multi-source teaching content is effectively optimized in the aspects of space coordination and time coherence, and the synchronous improvement of the image synthesis result in the aspects of visual uniformity, interaction instantaneity and content coherence is ensured.

The embodiment of the invention belongs to the technical field of display, and provides laser projection equipment and a control method, a first sensor in the laser projection equipment detects the rotating speed of a fluorescent wheel, and transmits a first rotating speed signal to a display control unit through a first transmission line; the second sensor detects the rotating speed of the color filter wheel and transmits a second rotating speed signal to the display control unit through the second transmission line; the first transmission line and the second transmission line are wrapped with metal conductors, and the metal conductors form a shielding layer for shielding electromagnetic interference. The display control unit controls the fluorescent wheel to rotate at a first rotating speed and the color filter wheel to rotate at a second rotating speed according to a to-be-displayed image signal, the first rotating speed signal and the second rotating speed signal, and sends a first driving signal to the laser light source; the laser light source emits a light beam to the color wheel system according to the first driving signal. Therefore, the occurrence of projection display abnormity can be reduced, and the user experience is improved.

The present application relates to a light source device and a projection display device. In a light source device in which fluorescent light and a part of blue light emitted from a semiconductor laser are output, a light source device in which the device does not excessively increase in size is sought. The light source device includes: a laser light source that outputs light in a predetermined wavelength region; a first dichroic mirror and a second dichroic mirror that have a characteristic of transmitting fluorescent light while reflecting light in the predetermined wavelength region, and are disposed on an optical axis of the laser light source; a first condensing optical system; a fluorescent color wheel that has a fluorescent light region that emits fluorescent light and a reflection region; a fourth dichroic mirror that has a characteristic of reflecting fluorescent light; a third dichroic mirror that has a characteristic of transmitting fluorescent light while reflecting light in the predetermined wavelength region, and is disposed so that an optical axis of the reflected light in the predetermined wavelength region coincides with an optical axis of the fluorescent light reflected by the fourth dichroic mirror; a second condensing optical system; and a light color selection color wheel that has a color filter and a diffusion portion.

The invention discloses an intelligent control method, device and equipment for an AR interaction sand table and a medium, and the method comprises the steps: obtaining a color image and a depth array collected by sand table detection equipment, carrying out the recognition of a color object contained in the color image, obtaining image recognition information, carrying out the conversion and detection of the depth array, and obtaining a detection result, whether the coordinate position of the target object in the image recognition information coincides with the coordinate range of the pit data in the detection result or not is judged, if any pit data coincides with the target object, a projection display result is generated according to the starting instruction and the pit data and sent to the projector, and the steps are executed circularly to achieve the real-time interaction function. According to the intelligent control method for the AR interaction sand table, the color information and the depth information of the object can be accurately recognized at the same time, the interaction efficiency and naturalness between the object and the virtual environment are improved, and the interaction function can be flexibly expanded according to different application scenes and user requirements.

The invention discloses a dynamic projection interaction calibration method and system for an annular science magic space, and belongs to the technical field of projection interaction. The method comprises the steps of obtaining three-dimensional point cloud data of an annular wall surface and spatial pose information of each projector, constructing a wall surface point cloud model, completing projector calibration according to the wall surface point cloud model, and obtaining a pose parameter data set; and based on the data set, mapping each frame of pixel of a preset picture sequence to a corresponding position of the wall surface in real time. And if user interaction is detected, determining an interaction area and executing corresponding logic. In the process, projection feedback images are continuously collected, dynamic calibration and tiny compensation are carried out in combination with pose parameters, calibration projection coordinates and real-time interaction response data are generated, and accordingly, all projectors are controlled to complete real-time and stable projection display on the annular wall surface. According to the scheme, the projection picture is highly consistent with the annular wall surface and user operation, dynamic calibration and real-time interaction are realized, the display precision and stability of projection are improved, and the immersion experience of a user is enhanced.

The application discloses a vehicle-mounted head-up display device and a display control method and device thereof, a vehicle and a storage medium. The method comprises the following steps: detecting whether the display area needs to be refreshed, wherein the display area is an area for realizing multiple display of the same area content; when it is detected that the display area needs to be refreshed, determining a first display content image displayed at a time point before the display area is refreshed; determining a second display content image to be displayed when the display area is refreshed; and controlling the first display content image and the second display content image to be displayed in a ghosting mode with a preset transparency in the display area. The method can provide optimal image visual effects in any scene, the image semi-transparent display and the control of the display area content refreshing can be realized through the data content and the instruction received by the HUD, the projection content of the projection display area of the HUD is enriched, the display effect of the projection display area is enriched, and the use experience of the user is improved.

The invention belongs to the field of projection display, and discloses a rear projection screen, which comprises an imaging layer, a black light absorption layer and a zigzag microstructure layer, the black light absorption layer is composed of a first black light absorption layer and a second black light absorption layer; the first black light absorption layer comprises a plurality of first black light absorption strips, the second black light absorption layer comprises a plurality of second black light absorption strips, and the first black light absorption strips and the second black light absorption strips are orthogonally stacked and arranged; the distribution distance between every two adjacent first black light absorption strips is increased or the distribution distance between every two adjacent second black light absorption strips is increased from the transverse center line / the vertical center line of the screen to the edges of the two ends. According to the rear projection screen, more projection light rays are absorbed in the central area of the screen and less or no projection light rays are absorbed in other areas by setting the distribution distance between the first black light absorption strips and the second black light absorption strips, so that the brightness difference between the central area of the projection screen and the other areas is reduced, and the brightness of the projection screen is improved. And the rear projection screen with high brightness uniformity is obtained.

The invention discloses a light source module and a projection display device. The light source module comprises a laser light source; the coupling lens is arranged on an emergent light path of the laser light source, and the light incident side and / or the light emergent side of the coupling lens are / is provided with an aperture diaphragm; and the tail fiber is arranged on an emergent light path of the coupling lens, light emitted by the laser light source is coupled into the tail fiber through the coupling lens, and by setting the type of the tail fiber and designing an optical fiber coupling end face, echoes and stray light generated at the optical fiber coupling end face are reduced, the influence of the echoes and the stray light on output of the laser is weakened and avoided, and the imaging quality is improved.