984 results about "Projection display" patented technology

The invention relates to the technical field of projection display, and discloses a projection curtain light field display gain method and system used under ambient light. According to the method, environment light data, projection curtain data and original output signals of projection equipment are collected in real time, and a dynamic light field distribution model is established after fusion processing. And based on the dynamic light field distribution model, adopting an adaptive genetic algorithm to optimize a compensation weight, generating a light field compensation parameter set, performing reverse compensation processing of brightness gain, contrast and chromaticity offset on an original output signal, and generating an enhanced projection signal. The system comprises a multi-source data acquisition module, a light field feature extraction module, a dynamic compensation calculation module, a signal enhancement processing module and a closed-loop feedback control module, ensures that the projection image keeps an optimal display effect under different ambient light conditions, and remarkably improves the watching experience of audiences.

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 relates to the technical field of projection display, particularly provides a driving track projection method, electronic equipment and a storage medium, and aims to solve the technical problem that a vehicle driving track projected by a high-definition pixel headlamp is inaccurate. In order to achieve the purpose, the driving track projection method is applied to the driving equipment, the driving equipment is provided with a projection lamp, and the method comprises the steps that the steering angle of the driving equipment at the current moment is obtained; acquiring a preset projection image set; the preset projection image set comprises multiple frames of preset driving track projection images; based on multiple frames of preset driving track projection images in a preset projection image set, acquiring an actual driving track projection image corresponding to the steering angle at the current moment; and projecting an actual driving track projection image to the road surface in the driving direction of the driving equipment based on the projection lamp. Through the above implementation mode, it can be ensured that when the driving equipment is at different steering angles, the vehicle driving track corresponding to the current moment can be accurately projected, and the use experience of a user is improved.

The invention relates to the technical field of panoramic projection systems, in particular to an intelligent XR multi-mode interactive exhibition stadium panoramic projection system, which comprises an intelligent data terminal, a display interaction module in communication connection with the intelligent data terminal, a VR terminal comprising a user client, an action capture card and virtual reality glasses, an intelligent service background connected with the VR terminal through a network, and a display interaction module in communication connection with the intelligent data terminal. Comprising an action data processing module used for acquiring action and position data from an action capture card and decoding and processing the data; the virtual reality module is used for updating a virtual scene according to the action data; the data communication and control module is used for performing data communication with the VR terminal and controlling the display screen; the panoramic projection display system comprises a plurality of projectors and is used for forming a curved screen or a spherical screen in an exhibition hall; determining the content projected to the display screen according to the real-time action position of the user; the user experience is greatly improved, and the exhibition information transmission efficiency can be effectively improved.

The invention provides a display module which can be applied to a projection display device, such as a head-up display system. According to the display module provided by the invention, dark-state light leakage existing in the display device can be eliminated, and the imaging performance of the display system is improved while the contrast ratio of the display system is improved. The display module comprises a display device and a phase compensation element. A first included angle larger than 0 is formed between the normal of the light-emitting plane of the display device and the normal of the light-emitting plane of the phase compensation element, and a second included angle larger than 0 is formed between the first coordinate axis of the light-emitting plane of the display device and the first coordinate axis of the light-emitting plane of the phase compensation element. A third included angle larger than 0 is formed between the second coordinate axis of the light emitting plane of the display device and the second coordinate axis of the light emitting plane of the phase compensation element. The display device is used for emitting a plurality of first light beams from a plurality of different angles, so that the phase compensation element can compensate the phase difference of each first light beam in the plurality of first light beams.

A projected display with improved visibility and understandability of a vehicle behavior. A vehicle projection device includes a projector that forms a projected image on a road surface; and a control unit. The control unit causes the projector to perform flashing projection of the projected image in a first period from start of projection, and causes the projector to perform sequential projection of the projected image in response to transition from the first period to a second period.

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 present invention provides a method and system for optimizing projection display, wherein the method for optimizing projection display is characterized in that the method for optimizing projection display comprises the following steps: (a) collecting an image of a projection surface without illumination, and illuminating the image of the projection surface with projection light from a projector to obtain parameters of ambient light and the projection surface; (b) calculating a reflection spectrum of the projection surface based on the parameters collected by various projection lights; and (c) linearly mapping the reflection spectrum of the projection surface to a coordinate system of a projection screen after measuring the projection light path to obtain a projected adjustment image.

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.

The present application belongs to the technical field of projection. Disclosed are a projection display device and a white balance adjustment method. The projection display device comprises a processor. The processor is used for: driving a primary color light source to emit primary color light, and acquiring a first color coordinate value of white light generated by mixing the primary color light; and when the deviation between the first color coordinate value and a standard color coordinate value is greater than a deviation threshold value, adjusting light emission parameters of the primary color light source on the basis of the standard color coordinate value, so that the deviation between a color coordinate value of white light generated by mixing primary color light emitted by the adjusted primary color light source and the standard color coordinate value is less than or equal to the deviation threshold value, wherein the standard color coordinate value is a white light color coordinate that the projection display device is expected to achieve. Thus, by means of accurate color control and correction, the projection display device can reduce color distortion and deviation and improve the definition and contrast of images, thereby enhancing the display stability and consistency.

The invention relates to a pipeline inspection method, system and device integrating mixed reality and high-precision real-time positioning and a medium, and relates to the technical field of pipeline positioning inspection, and the method comprises the steps: carrying out the decoding positioning processing through employing the obtained differential correction data and high-precision real-time satellite data, high-precision real-time positioning information when the mobile station performs pipeline inspection on the target pipeline is obtained, then three-dimensional rendering is performed by using the high-precision positioning information in combination with pipeline coordinate data and a pre-constructed three-dimensional pipeline model, and holographic projection data representing the real-time condition of the pipeline is obtained. According to the method and the device, the pipeline is subjected to pipeline holographic projection display and pipeline inspection according to the holographic projection data, and the pipeline data operation is performed in the pipeline inspection process, so that on the basis of remarkably improving the positioning precision, the real-time and visual display of the data is further realized, the data can be efficiently operated, and the data operation error rate is reduced.

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.

The invention is suitable for the technical field of micro projection display, and discloses a projection lens, an optical machine and a near-to-eye display device.The projection lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, the diaphragm, the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the image source are sequentially arranged from the object side to the image side. The first lens, the second lens, the fourth lens and the fifth lens all have positive focal power; the third lens has negative focal power; the object side surface of the first lens is a convex surface, the object side surface of the second lens is a convex surface, the image side surface of the third lens is a concave surface, and the image side surface of the fifth lens is an M-shaped curved surface. According to the embodiment of the invention, the uniformity of the virtual image projected by the near-eye display equipment can be improved.

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.

The invention relates to a one-to-many screen projection dynamic coding control method and device and a storage medium, the dynamic coding control method is applied to a sending end during one-to-many screen projection, the sending end is in communication connection with a plurality of receiving ends, and the dynamic coding control method comprises the following steps: connecting a data source device, and obtaining screen projection data; acquiring a communication quality parameter once every other preset monitoring period; the communication quality parameters are communication quality parameters of communication connection between the sending end and each receiving end; encoding the screen projection data according to the communication quality parameters to obtain encoded data; and sending the coded data to the receiving end for screen projection display. According to the invention, the data display effects of different receiving ends can be dynamically adjusted according to the quality of wireless communication in the monitoring period, so that the user experience of one-to-many screen projection is improved.

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 projection display device including a first panel that generates a first image, a second panel that generates a second image, a prism that combines the first image with the second image shifted in a horizontal direction with respect to a first pixel and outputs a combination image, a light path shift element, and a display control circuit. The display control circuit supplies data signals of odd-numbered rows to the first panel and supplies data signals of even-numbered rows to the second panel in an odd-numbered field period, and supplies data signals of even-numbered rows to the first panel and supplies data signals of even-numbered rows to the second panel in an even-numbered field period, and controls the light path shift element so that a light path of the combination image is shifted in a vertical direction.

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 present application relates to a pixel expansion apparatus and a projection display device. The pixel expansion apparatus comprises: a first optical wedge used for receiving an incident beam; and a second optical wedge opposite to and spaced apart from the first optical wedge, wherein either of the second optical wedge and the first optical wedge moves back and forth along an optical path relative to the other, so that an emergent beam formed by the incident beam passing through the second optical wedge generates a preset displacement in a direction perpendicular to the optical path.