54results about How to "Improve realism" patented technology

The present application provides a kind of snow drifting device applied to environmental wind tunnel, belong to the technical field of wind tunnel test equipment research.The purpose is to solve the problem of poor uniformity, low particle size control precision, easy to block, space size restriction in prior art.In the present application, mist droplet generation section, mixing section and snow treatment section are connected in sequence to form a wind tunnel;fan array, cooler and two-phase nozzle are installed in mist droplet generation section from bottom to top, mist droplet inlet and water inlet are communicated with two-phase nozzle through mist droplet water inlet pipe branch and mist droplet air inlet pipe branch respectively;screening snow grid is provided at the connection of mixing section and snow treatment section, snow sweeping mechanism is installed above screening snow grid, brush driving motor output is connected with driving shaft through reducer, and brush is provided on driving shaft;snow bearing net and movement mechanism are installed below screening snow grid.The present application solves the problem of poor uniformity, low particle size control precision, easy to block, space size restriction in prior art.

This invention discloses a real-time rendering method and system for physically simulated volumetric clouds. The method includes the following steps: constructing a dynamic noise mixing model, and constructing complex cloud layers by mixing multiple noises based on the dynamic noise mixing model; constructing a multi-scattering illumination model, and using the multi-scattering illumination model to perform single-scattering calculations and multi-scattering approximations on the complex cloud layers to simulate illumination; based on the completed illumination simulation, dividing the cloud density field of the complex cloud layers into several voxel blocks, and performing adaptive light travel processing to complete the real-time rendering of volumetric clouds. This invention, without sacrificing image quality and rendering efficiency, integrates advanced cloud modeling theory with efficient GPU acceleration technology, and uses a mixed noise model to generate diverse cloud structures, accurately reproducing various typical cloud types such as high-altitude cirrus clouds, cumulus clouds, and stratus clouds.

This invention discloses a suspended, flexible, deformable, and emotionally interactive robot. A flexible outer shell covers a flexible chassis, and a levitation airbag is installed inside the flexible outer shell. The levitation airbag is filled with buoyancy gas to provide the buoyancy required for the robot's suspension. An interactive control system inside the flexible chassis enables user interaction. A micro-airflow propulsion system is installed at the bottom of the flexible chassis, including multiple airflow generating units. By adjusting the airflow direction and intensity of the airflow generating units, the robot is driven to achieve spatial movement. The charging base station is an external device, and the bottom of the flexible chassis has an energy supply interface corresponding to the charging base station. When docked, the charging base station provides the robot with electrical energy or buoyancy gas. This invention is applicable to fields such as family emotional companionship, health and wellness, creating an intelligent indoor atmosphere, psychological relaxation assistance, and interactive displays in commercial scenarios. Through the organic integration of various systems, the robot achieves aerial suspension, flexible deformation, intelligent emotional interaction, and autonomous refueling.

The application discloses an electric horse simulator with a biofeedback sensor, and relates to the field of electric horses. The simulator comprises a base, a body, a driving mechanism connecting the base and the body, and a controller connected with the driving mechanism. The body imitates the shape and structure of a real horse, and comprises a horse body and a horse head. The horse body and the horse head are connected through a horse neck with certain flexibility, and the tail of the horse body is designed with a horse hip, so that the whole simulator is more lifelike in appearance, and can bring a user a more real horse-riding feeling. The simulator has local capacitive and pressure sensing areas, can realize the sensing of touching and pressing, and can provide corresponding feedback to realize better simulation effect, so that the equestrian simulation training is more real.

This application relates to the field of traffic simulation technology, and proposes a method, apparatus, electronic device, and computer program product for adding noise to vehicle simulation trajectories. The method includes: generating simulation trajectories of simulated vehicles from simulated road vehicle data; wherein the simulated road vehicle data is obtained by mapping from real road vehicle data; and adding noise to the simulation trajectory based on a first real trajectory of a first real vehicle corresponding to the simulated vehicle in the real road vehicle data. This method can improve the similarity between the generated simulation trajectory and the real trajectory, that is, it can improve the realism of the generated vehicle simulation trajectory.

The application relates to a target detection simulation method based on a satellite-borne load, which comprises the following steps: satellite orbit simulation, star background simulation, visible target judgment and detection image simulation; image processing is performed on the ideal detection image so that the detection image simulation result approaches the detection image of the actual satellite-borne load. The method is realized by using C++ programming to improve the algorithm safety and flexibility.

A video conferencing device, method, and vehicle for use in a vehicle are provided. The video conferencing device includes: an image capture device configured to capture an initial image sequence including facial images of occupants within the vehicle cabin; a processor communicatively connected to the image capture device and configured to generate a corrected image sequence based on the initial image sequence, wherein facial images of the occupants are located in the central region of each image in the corrected image sequence; and a display communicatively connected to the processor and configured to display the corrected image sequence to other occupants within the vehicle cabin.

The utility model relates to massage chair technical field, more particularly, relate to a massage chair leg drive mechanism. Through adopting double shaft output motor to drive left and right leg support assembly simultaneously, and combining with the two thread connectors of opposite rotation, make two screw rods produce the axial movement of opposite direction when the motor same direction rotation, to drive left and right leg support assembly realizes asynchronous motion. This structure only needs a motor to realize the action of double legs independent, asymmetric, can simulate more natural leg alternate movement, significantly improves the massage comfort degree and the real feeling, reduces the number of motor, reduces cost and energy consumption simultaneously.

The application discloses a soft material bubble dynamics finite element analysis method, electronic equipment and medium, and the method comprises the steps of constructing a soft material bubble model; the method comprises the steps of establishing a hollow sphere model, dividing the hollow sphere model into blocks and dividing the grid, so that the grid forms a uniformly distributed wedge-shaped grid in space; defining the physical parameters of the soft material bubble model; defining the gas pressure on the inner surface of the bubble and setting the contact condition; applying a dynamic load and superimposing an initial defect including displacement and / or pressure; based on the orthogonality of spherical harmonics, identifying the relationship between the amplitude of the asymmetric deformation of the bubble and time.

This invention discloses a method and system for digital human hosting programs using AI technology, relating to the field of artificial intelligence technology. The method includes: firstly, parsing the program schedule to extract key semantics, and dynamically calculating semantic temperature by combining the attention weight gradient change rate and action information entropy density; subsequently, in the action expression stage, using semantic temperature to inversely adjust the Brownian diffusion coefficient; and strictly limiting the random differential increment within redundant degrees of freedom using the Jacobi null space projection operator to ensure the accuracy of core action intentions while endowing posture with agility. A latent space similarity drift evolution mechanism controlled by semantic temperature is established, and the high-frequency action probability space after elimination and alignment is jointly superimposed and normalized for expansion; finally, using an accelerometer integral cost function to filter out mechanical twitches and perform interpolation stitching. This completely overcomes the technical pain point of monotonous digital human expression, generating humanoid actions that balance physical accuracy and extremely high diversity.

This invention relates to the fields of computer and virtual reality technology, and discloses a method for virtual reality reproduction of opera performances based on motion capture technology. This method uses inertial and optical motion capture, eye tracking, and facial expression acquisition to fuse multi-source heterogeneous data into a 4D temporal motion dataset; it combines a stylized opera motion library for semantic annotation, and uses a graph convolutional neural network to construct a mapping model from motion to digital human driving parameters; it drives a high-fidelity opera digital human in a virtual reality environment, synchronously rendering costumes, makeup, dynamic fabrics, and stage lighting and sound effects that conform to the characteristics of different opera roles, achieving high-precision reproduction of hand, eye, body, and footwork.

This application provides a method, apparatus, device, and storage medium for matching and repairing lip movements and speech content in a video, belonging to the field of image processing. It acquires original video data and supplementary text information, performs speech synthesis, generates speech feature parameters, and then generates a lip movement animation sequence synchronized with the speech content. A semantic segmentation model is used for pixel-level recognition of the mouth region, and a physical constraint model is combined to control the tooth region. If the tooth region exceeds the lip contour, dynamic regression adjustment is performed to ensure the naturalness and plausibility of the generated lip movement. Furthermore, the accuracy of tooth region generation is improved through dense cross-layer connections, a feature pyramid structure, specialized skip connections for the tooth region, and a heatmap gating mechanism for key tooth points. A spatial-channel dual attention algorithm is introduced into the decoder to enhance the feature representation of key mouth regions. A tooth region focus loss function is used to optimize the generation results and improve model robustness. A differential physics engine simulates a point mass spring system and adversarial physical constraints to achieve physical plausibility control of key lip points. Finally, the generated lip movement animation is fused with the original video to output the repaired video, significantly improving the consistency and realism of the speech and lip movement in the video.

This invention relates to the field of display technology, specifically to a display control method and system for a computer LCD monitor. The method includes: acquiring a low dynamic range image, normalizing its brightness, and generating a mask indicating exposure / saturation areas based on a saturation threshold; inputting the image and mask into a high dynamic range reconstruction network to obtain a reconstructed high dynamic range image; combining its color and brightness channels into a tensor input local dimming network to output a backlight prediction image consistent with the display resolution; simulating a diffuser plate based on point spread function convolution and calculating the average brightness of sub-regions according to the LED array to generate a backlight control image; calculating and cropping the transmittance from the reconstructed image and the diffused backlight image to form a grayscale control image for the LCD panel; simultaneously sending the backlight control image and the grayscale control image to drive the backlight module and the LCD panel to achieve high dynamic range display. This invention solves problems in existing computer LCD monitors, such as the difficulty in fully utilizing the backlight local dimming potential of low dynamic range input images, the difficulty in simultaneously achieving bright area saturation and dark area detail, and the high backlight power consumption and susceptibility to halo artifacts while improving contrast.

This invention discloses a method and system for optimizing stereoscopic vision on naked-eye 3D large screens, specifically relating to the field of naked-eye 3D vision optimization technology. The method includes: real-time perception of ambient light and viewer position through multi-sensor fusion to establish an ambient light field model; prediction of glare crosstalk noise based on physical simulation, and adaptive suppression and compensation combining human visual sensitivity and image content features; dynamic generation of a virtual camera based on the viewer's real-time binocular positions, and real-time re-rendering using a lightweight neural radiation field renderer to achieve motion parallax; finally, intelligent fusion and encoding of the glare compensation layer and perspective correction layer, and outputting the result to the screen. The system includes four main modules: environmental perception, glare compensation, perspective rendering, and fusion encoding. This invention effectively suppresses ambient light interference, improves the quality and immersion of stereoscopic images from different viewing angles, and is suitable for naked-eye 3D large-screen displays in outdoor and complex lighting environments.

The application discloses a kind of orthogonal three-dimensional weave analysis methods based on CT three-dimensional reconstruction and threshold fitting, it is related to weave technical field, comprising: while following the physical constraint of X-ray imaging, generate three-dimensional voxel model using latent diffusion priori;Reserve orthogonal three-dimensional weave main body to generate purified three-dimensional voxel model;Get calibrated three-dimensional voxel model;Separate weave main stress area and generate each analysis area three-dimensional voxel model;Set continuous gray threshold interval and with fixed step length scan each analysis area three-dimensional voxel model, form threshold-volume fraction data set;According to threshold-volume fraction data set, construct threshold proportion trend curve, get fitting deviation index;According to fitting deviation index, generate orthogonal three-dimensional weave internal infiltration quality evaluation result.The application improves the imaging quality and authenticity of orthogonal three-dimensional weave microstructure.

The texture mapping method, device, electronic equipment and storage medium provided by the application relate to the field of scanning data processing. The method is point cloud conversion processing on a grid model of a measured object to obtain point cloud data; according to the pose of each collection image of the measured object, the mapping relationship between each collection image and the point cloud data and a global texture atlas are obtained; based on the global texture atlas, the mapping relationship between each collection image and the point cloud data is corrected to obtain the corrected mapping relationship between each collection image and the point cloud data; the global texture atlas is updated according to the corrected mapping relationship between each collection image and the point cloud data to obtain an updated global texture atlas; and based on the updated global texture atlas, the grid model is converted into a texture map, so that the color misplacement, ghosting and joint fracture problems caused by the pose error are eliminated, and the realism, continuity and engineering robustness of the texture map in the high-precision three-dimensional reconstruction scene such as intraoral scanning are improved.

This invention discloses a model verification method and apparatus based on measured data. The method includes: acquiring a measured dataset; processing the measured dataset to obtain a first dataset; processing the first dataset to obtain a second dataset and a third dataset; processing the second dataset to obtain a fourth dataset; and processing the third and fourth datasets to obtain model evaluation result information. This invention performs singular value removal, time alignment, spatial alignment, and parameter sensitivity analysis on the acquired measured data from different platforms to obtain platform performance parameter data and test data, which are used for verifying and evaluating platform simulation models, thus improving the realism of the simulation models.

The application relates to the technical field of pulse diagnostics, and discloses a pulse model for traditional Chinese medicine diagnostics, which comprises a simulation human hand model, a pulse forming device, a pulse driving device and a pulse sensing device which are arranged in the simulation human hand model; the pulse driving device comprises a rotatable adjustable pulse integrated roller, an analog heart ejection driving assembly arranged in the pulse integrated roller and an automatic opening and closing device between the heart and the pulse vessel; four-dimensional adjustable grooves in the application are coordinated with differentiated pulse vessels to accurately reproduce pulse position, pulse shape and pulse potential; 28 grooves are independently designed in four dimensions of width, depth, length and height, and are matched with the bionic pulse vessels which are different in pipe diameter, wall thickness, softness, hardness and elastic coefficient, so that the 28 grooves can accurately simulate the clinical characteristics of the wide and turbulent flood pulse, the thin and straight tight string pulse, the shallow and easy-to-get floating pulse, the deep and heavy sinking pulse, the over-position pulsation long pulse and the short and inattentive short pulse, and the simulation hand realness is greatly improved.

The application discloses a dynamic resolution ultrasonic phased array haptic generation device and a control method, relates to the technical field of ultrasonic haptic feedback, and realizes the software adjustment of the ultrasonic haptic focus size through an EDM beam forming algorithm, thereby breaking through the limitation of the traditional DAS method which is limited by hardware. Users can dynamically select a high resolution mode or a high radiation force mode according to specific application scenarios, and the flexibility and reality of haptic interaction are significantly improved. The system structure is compact, all adjustments are completed through software, hardware does not need to be changed, and the system is convenient to integrate into intelligent automobile central control, AR / VR headgear, interactive exhibition stands and other equipment, so that more rich and adaptive haptic experiences are provided for human-computer interaction. Under the premise of not changing the hardware structure, the system optimizes the phases and amplitudes of all channels of the ultrasonic array through the software algorithm of the upper computer, and cooperates with the hardware logic control of the FPGA controller to realize the dynamic control of the spatial resolution of the haptic focus and the generation of multiple foci.

This invention relates to the field of wind speed measurement technology, specifically to a wind speed measurement method and system based on multi-directional correlation calculation. The method includes the following steps: obtaining the coordinate data of measuring points and calculating the correlation with temperature sequences to obtain time correlation; sorting the propagation order and calculating the airflow path by connecting lines; judging directional consistency to select continuous paths; calculating and superimposing the order of the connecting lines to obtain the airflow expression; and filtering and outputting the wind speed results based on the directional distribution. In this invention, the rate is obtained by differentiating the temperature sequence and determining the correlation through correlation analysis. Based on the correlation, the measuring points are sorted and the airflow path is calculated by connecting lines. The paths are filtered based on directional consistency, and the airflow expression is obtained by calculating and superimposing the order of the connecting lines. The distribution is obtained by comparing concentration to filter and output the measurement results. This effectively eliminates interference errors caused by irregular disturbances in the calculation and ensures the extraction of core dynamic information, significantly improving the realism of multi-directional spatial flow field analysis and measurement accuracy.

This utility model relates to a tilting and rolling device and a toy engineering vehicle. The toy engineering vehicle is equipped with the tilting and rolling device. By setting a fixing mechanism with a first tilting surface and a second tilting surface on the tilting and rolling device, the two ends of the rolling mechanism form rotating pairs with the tilting surfaces at different mounting positions. This forces the movement trajectory of the rolling mechanism to be constrained when the drive gear transmits torque, thereby enabling the rolling mechanism to synchronously maintain a predetermined tilt angle during continuous rotation. Furthermore, by using this tilting and rolling device on a toy, the toy can possess the ability to maintain the tilt of its components during rotation, greatly improving the realism of the product.

This application discloses a model training method, an image processing method, an apparatus, and a program product, belonging to the field of image processing technology. The model training method includes: acquiring multiple data pairs, each data pair including a first initial image and a second initial image, wherein the first initial image is an image of a preset object taken in a static state, and the second initial image is an image of the preset object taken in a moving state, and the facial region of the preset object in the second initial image is blurred; generating multiple sets of training data corresponding one-to-one with the multiple data pairs, the training data including original images, reference images, and ground truth images; training an initial feature encoder based on the multiple sets of training data to obtain a facial feature encoder; and training an initial latent spatial feature restoration module based on the multiple sets of training data to obtain a latent spatial feature restoration module.

This invention provides an experimental apparatus for in-situ heating and conversion of organic matter into oil and gas. The apparatus includes: a vessel body with a cavity for holding an organic sample; a heating device for heating the vessel body; an air inlet device connected to a first end of the cavity for supplying fluid into the cavity; and a reaction product collection device connected to a second end of the cavity for collecting the products from the in-situ heating of the organic sample in the cavity. This invention overcomes the technical problem of low accuracy in measuring the amount of oil and gas produced by in-situ heating and conversion of organic matter obtained through existing laboratory thermal simulation methods.

The application discloses a sound signal processing method and device, a virtual reality device and a storage medium. The method comprises the following steps: obtaining a gaze track of a user and sound body information in a field of view of the user, wherein the sound body information comprises position information and acoustic classification information of each sound body; obtaining attention information of the user to each sound body according to the gaze track and the position information of each sound body; and processing a sound signal emitted by each sound body according to the attention information of the user to each sound body and the acoustic classification information of each sound body. The technical scheme of the application can design a sound processing scheme for a sound body according to the attention degree of the user to the sound body, so that the processed environmental sound meets the real needs of the user, the user can obtain the environmental sound that he / she pays attention to, and the hearing effect provided by the virtual reality device has high fidelity.

This application relates to the field of computer graphics technology, specifically disclosing a method, apparatus, medium, and device for multi-source data loading in 3D intelligent visualization. The method includes: loading and dynamically adjusting an oblique photogrammetry model to construct an oblique photogrammetry real-world base; generating semantically coded 3D tiles data based on this base; identifying key entity objects, lightweighting their high-precision GLB / GLTF models, and dynamically embedding them into the scene; dynamically parsing and spatially overlaying the KML data associated with the key objects to construct a multi-level 3D scene information system from entity annotation to macroscopic annotations; dynamically coupling KML elements with terrain elevation data to form a high-precision digital elevation base supporting visualization; and optimizing resource scheduling of the base based on a dynamic memory partitioning mechanism to achieve an adaptive balance between terrain complexity and system load. This application can improve the accuracy, efficiency, and system stability of multi-source heterogeneous data fusion.

The application discloses a flexible six-dimensional force sensing robot bionic fingertip device capable of being attached to deformation, relates to the technical field of bionic fingertips and comprises a palm shell, a mounting base is fixedly connected inside the palm shell, a thumb driving mechanism and four groups of four-finger driving mechanisms are arranged on the mounting base, a six-dimensional force sensing unit and a sensing array substrate are fixedly connected in a built-in groove, a pressure sensor and a micro telescopic motor are fixedly connected on the sensing array substrate, the device can highly simulate real grabbing actions of a human hand, the thumb bionic body and the bionic fingertip body are directly attached to and contact the surface of an object to be grabbed during grabbing work, the pressure sensor detects pressure values of contact positions in real time, the six-dimensional force sensing unit synchronously perceives multidimensional stress states in the grabbing process, the thumb bionic body and the bionic fingertip body which slightly deform are actively reset, the fingertip structure is restored to the initial form, and structural deviation and grabbing precision reduction caused by long-term deformation are avoided.

The invention discloses an anti-loss image processing method for digital media, which is suitable for short video frame processing and comprises the following steps: S1, through multi-algorithm preprocessing, outputting a layered feature cache library and a preprocessing feature map containing a transition area; s2, a differential elastic compression strategy is adopted for the four types of image areas, and two-stage error correction and area fusion softening are matched; s3, repairing details through an attention codec and a multi-residual network, correcting dynamic artifacts and balancing light and shadow; s4, adaptively converting a color space, and scaling the resolution to adapt to different terminals; and S5, outputting the image after verification. The method gives consideration to compression efficiency and image quality, reduces transmission loss, improves the detail reduction degree of a complex scene, guarantees the consistency of cross-device display, and is suitable for a multi-digital media scene.