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.

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 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.

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.