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323 results about "Shadow effect" patented technology

Efficient graphic rendering system based on artificial intelligence core computing power

The invention relates to the field of graphic rendering, in particular to a high-efficiency graphic rendering system based on artificial intelligence core computing power, which comprises an intelligent task decoupling module for performing task decoupling on a graphic rendering task; the AI enhanced texture generation optimization module is used for learning a dynamic scene change rule to generate a texture map in real time, reducing calculation overhead in a repeated texture region by using a multiplexing algorithm, and performing super-resolution compensation on low-resolution textures by using a deep convolutional neural network; the AI driving illumination and shadow calculation module is used for predicting an illumination transmission path in a scene by using AI and reconstructing a dynamic shadow effect so as to realize high global illumination and shadow simulation; the task result synchronization module is used for synchronizing rendering data output by each subtask; according to the method, the high-quality texture map is dynamically generated, super-resolution compensation is carried out on the low-resolution texture, repeated calculation is avoided through a texture multiplexing algorithm, the calculation overhead is remarkably reduced, and the real-time rendering efficiency of a large-scale complex scene is improved.
Owner:CHANGSHA SHAOGUANG SEMICONDUCTOR CO LTD

Virtual imaging method and system applied to virtual shooting, computing equipment and storage medium

The invention provides a virtual imaging method and system applied to virtual shooting, computing equipment and a storage medium, and relates to the technical field of virtual imaging. The method comprises the following steps: synchronously acquiring object surface reflection characteristic data by using a multi-wavelength light source, and generating various imaging parameters through an image feature extraction network; the dynamic attitude data and binocular vision depth information are fused, and virtual and real scene dynamic space coordinate mapping is constructed; calculating the surface reflection intensity distribution of the virtual object in real time through a light propagation simulation module in combination with the specular reflectance and deformation correction parameters, and dynamically adjusting the relative position of the virtual object and the real light source; generating a continuous and smooth shadow boundary transition effect based on a material attenuation model; and performing space-time calibration on the shadow effect by using the dynamic attitude sequence to realize frame-level synchronous rendering of virtual and real light source positions and shadow changes. According to the technical scheme provided by the invention, through optical parameter modeling and dynamic path optimization, the problem of light and shadow distortion of the virtual object in a real scene is solved.
Owner:SHANGHAI SOKALIS MULTIMEDIA TECH CO LTD

Digital exhibition hall panoramic roaming construction method based on virtual-real fusion

The invention belongs to the technical field of computer graphics and virtual reality, and discloses a virtual-real fusion-based panoramic roaming construction method for a digital exhibition hall, which effectively solves the problems of easy drift and offset in a virtual environment in a traditional system through a multi-sensor fusion algorithm and a closed-loop optimization mechanism. Under the complex environment of people flow change, illumination fluctuation and the like in an exhibition hall, accurate alignment of virtual content and physical space can still be kept, it is ensured that a user obtains coherent and stable visual experience in the roaming process, and a reliable space reference is provided for virtual-real interaction; the light and shadow effect and the material performance of the virtual content are naturally fused with the physical environment through the physical rendering and multi-sensory interaction technology, and meanwhile, a multi-dimensional immersion sense is constructed in combination with the spatial sound effect and interaction feedback; when the user interacts with the virtual exhibit, sensory experience close to reality can be obtained, and the sense of substitution and attraction of the digital exhibition hall are remarkably improved.
Owner:NANJING YIXUAN INTERNET TECHNOLOGY CO LTD

Side light-emitting device and lamp

The side light-emitting device comprises a frame extending in the vertical direction and a light source module arranged on the inner side of the frame, the light source module emits light in the direction parallel to the extending direction of the frame, a light distribution piece is arranged in a light emitting path of the light source module, and the side light-emitting device is arranged on the side light-emitting device. The light rays are refracted by the light distribution piece and then are emitted in the direction away from the frame. The side light-emitting device can simulate the effect of illuminating the frame on one side of the window when sunlight enters from one side of the window, and can form a virtual image and simulate the window shadow effect in cooperation with the light-emitting surface of the lamp, so that the display effect of the lamp is more vivid, and the visual experience of a user is improved.
Owner:OPPLE LIGHTING CO LTD +1

Light and shadow effect display method and electronic equipment

The invention provides a light and shadow effect display method and electronic equipment, and relates to the technical field of terminals. According to the method and the device, the light and shadow effect display can be adaptively realized based on the preset illumination information in combination with the current display information, the interface light and shadow effect is enriched, and the use experience of a user is improved. The method comprises the steps that first operation of a user is detected, and the electronic equipment determines to refresh a first interface which is being displayed; the electronic device obtains illumination information and current display information, wherein the illumination information is a pre-configured global illumination definition. And the electronic equipment performs illumination rendering according to the illumination information and the current display information. Afterwards, the electronic device displays a second interface, and the first component in the second interface has a light and shadow effect formed after illumination rendering.
Owner:HUAWEI TECH CO LTD

Low-brightness image security enhancement method and device based on deep learning

The invention discloses a low-brightness image security enhancement method and device based on deep learning. The method comprises the following steps: firstly, collecting a large number of low-brightness images covering different scenes, illumination conditions and object contents, and preprocessing the low-brightness images; then a deep learning model is constructed, the model comprises an image light simulation module and an image enhancement module, and the image light simulation module is used for simulating the influence of a light source on an image based on low-brightness image data, calculating scattering, reflection and shadow effects after interaction of light and the image, generating light simulation data and enhancing the light simulation data; the image enhancement module is used for adjusting related parameters for enhancement processing according to the light simulation data; then training the constructed deep learning model by using the preprocessed low-light image data; and finally, enhancing a to-be-processed low-light image by using the trained deep learning model. According to the method, the identification accuracy and the application efficiency of the model can be remarkably improved, the image enhancement quality is improved, and the enhanced image shows loyalty physical rationality and detail authenticity.
Owner:WUHAN UNIV

Double-shaft omni-directional steering unmanned aerial vehicle laser lamp and control method thereof

The invention relates to the technical field of performance lighting equipment, in particular to a double-shaft omni-directional steering unmanned aerial vehicle laser lamp and a control method thereof. The unmanned aerial vehicle laser lamp structure comprises a transmission device and a motor, the unmanned aerial vehicle laser lamp structure can rotate by 360 degrees along the X axis and the Y axis, magnetic fluid sealing rings are adopted for packaging, high waterproofness can be achieved, the unmanned aerial vehicle laser lamp is hung below a four-axis or six-axis unmanned aerial vehicle, a space light beam system capable of freely rotating is formed, all-dimensional irradiation is achieved, and the rich three-dimensional light beam effect is created. In addition, the flight control system of the unmanned aerial vehicle can be compatible with a small unmanned aerial vehicle performance control system, so that the unmanned aerial vehicle can be accurately integrated with other unmanned aerial vehicles and cooperate with formation performance. The visual level of unmanned aerial vehicle light show is improved, compared with traditional unmanned aerial vehicle laser equipment, the system can flexibly adjust the height and the angle, the defect that existing unmanned aerial vehicle air show lacks space light beams is effectively overcome, and a more dynamic and immersive light and shadow effect can be constructed in the air in combination with fine control.
Owner:SHENZHEN HONGYI TECH CO LTD +1

Metal overhang for advanced patterning

Sub-pixel circuits and methods of forming sub-pixel circuits that may be utilized in an organic light-emitting diode (OLED) display are described herein. The adjacent metal-containing overhang structures defining each sub-pixel of the sub-pixel circuit of the display provide for formation of the sub-pixel circuit using evaporation deposition and provide for the metal-containing overhang structures to remain in place after the sub-pixel circuit is formed (e.g., utilizing the methods of the fifth, sixth, or seventh exemplary embodiments). Evaporation deposition may be utilized for deposition of an OLED material and cathode. The metal-containing overhang structures define deposition angles, i.e., provide for a shadowing effect during evaporation deposition. The encapsulation layer of a respective sub-pixel is disposed over the cathode with the encapsulation layer extending under at least a portion of each of the adjacent metal-containing overhang structures and along a sidewall of each of the adjacent metal-containing overhang structures.
Owner:APPLIED MATERIALS INC

Binocular high-definition sensing system for indoor AR golf course

The invention discloses an indoor AR golf course binocular high-definition sensing system, and the system comprises a dynamic capturing module which comprises a high-speed camera unit, a laser radar unit, and an inertial measurement unit; wherein the high-speed camera unit is used for calculating the position change of a golf ball; the laser radar unit is used for providing three-dimensional space position information of the golf ball; the inertial measurement unit is used for monitoring the rotation rate and the speed change of the golf ball in real time; and the vibration feedback module is used for simulating the impact feeling and the rebound feeling during real ball hitting. According to the invention, the dynamic capture module and the vibration feedback module cooperate with each other, the position, track and motion state of a golf ball in a projection picture are updated in real time, the illumination, texture and shadow effects in a virtual scene are dynamically adjusted, the high-definition and low-delay visual effect is supported, and the visual effect is improved. And the sound effect matched with the ball hitting action and the motion state of the ball is matched, so that the sense of reality of indoor golf playing is provided.
Owner:GOLD MANTIS FINE DECORATION TECH (SUZHOU) CO LTD

Dynamic multi-spot projection optical system based on LED light source

The invention discloses a dynamic multi-spot projection optical system based on an LED light source, which comprises the LED light source, a reflecting cover, a grating sheet, a condensing lens, a concave reflector and an optical reflection assembly, and is characterized in that the LED light source is arranged at the bottom of the reflecting cover, and the grating sheet is provided with a light-transmitting area with a preset pattern shape; the reflecting cover consists of a plurality of plane reflectors A; the concave reflector consists of a plurality of plane reflectors B; light emitted by the LED light source forms a pattern light beam through the grating piece, the light beam is divided and reflected into a plurality of sub light beams through the conical reflecting cover, and the sub light beams are guided to the condensing lens through the optical reflecting mirror set. According to the invention, a low-cost, laser-free and safe LED scheme is adopted, and through innovative optical design, a complex dynamic light and shadow effect comparable to or even surpassing laser projection is realized, and the imaging definition is kept unchanged within a projection distance range of 2-15 meters.
Owner:SHENZHEN CHENGTAI SEMICON TECH CO LTD

Fireplace surface defect detection method and system driven by machine vision

The invention provides a fireplace surface defect detection method and system driven by machine vision, and relates to the technical field of defect detection, and the method comprises the steps: collecting a historical missing detection sample set corresponding to a preset defect detection model; establishing a defect sample to be reinforced; performing shadow effect enhancement analysis on the to-be-enhanced defect sample, establishing a light source arrangement parameter of which the enhancement distinction degree is greater than a preset distinction degree, and obtaining a corresponding shadow enhancement distinguishing sample; optimizing the preset defect detection model; and after shadow effect enhancement processing is carried out through an arranged light source, fireplace images are collected and input into the optimized preset defect detection model for defect detection. According to the method and the device, the technical problem that in the prior art, due to the fact that image enhancement is generally carried out in a unified mode but discrimination analysis is lacked, pertinence is insufficient, and then defect detection stability is affected can be solved, and the defect detection accuracy is improved by enhancing analysis and optimizing the defect detection model through the shadow effect. The technical effect of improving the robustness and accuracy of the defect detection model is achieved.
Owner:XUZHOU XINGGUANGMEI CASTING CO LTD

Method and device for optimizing garment sewing effect

The invention provides a method and device for optimizing the garment sewing effect, and the method comprises the steps: confirming the sewing surfaces, the preset height and the width of two garment plates needing to be sewn, and superposing a new rendering grid in a protruding part form at the sewing end of at least one garment plate based on the preset height and the preset width, and sewing the two clothing sections so as to optimize the light and shadow effect at the sewing position of the clothing sections by newly creating the rendering grid when the clothing sections are displayed. According to the scheme, control and optimization of the topological structure of the sewing position are achieved through the preset numerical value, a user can flexibly adjust the sewing effect by changing the preset numerical value so that the sewing effect can meet the design requirement, and the sewing position of the garment sheet can present a more real and natural light and shadow effect during display; and the fidelity, the stereoscopic impression and the texture of the clothes are enhanced.
Owner:LINGDI (ZHEJIANG) TECHNOLOGY CO LTD

Animation scene light and shadow dynamic rendering method and system

The invention provides a cartoon scene light and shadow dynamic rendering method and system, and relates to the technical field of cartoon production, and the method comprises the steps: firstly building a light and shadow association relationship between scene elements (including scene static structure elements and scene dynamic role elements) in a cartoon scene, and obtaining a scene element light and shadow association map containing hierarchical division and association weights; generating a light and shadow dynamic response rule based on the scene element light and shadow association map in combination with the atmosphere type, generating an initial light and shadow rendering scheme according to the rule in combination with the current frame scene element state data and the atmosphere type identifier, and analyzing the interaction influence of the light and shadow effect of each scene element in the initial light and shadow rendering scheme; multi-round iteration is adopted to adjust and optimize light and shadow parameters to generate a final light and shadow rendering scheme, the final light and shadow rendering scheme is applied to current frame rendering, finally, key light and shadow parameters of a current frame are extracted to be subjected to coherence analysis with a previous frame, inter-frame light and shadow transition parameters are generated to be used for smooth light and shadow connection of a next frame, and smoother and more comfortable visual experience is brought to audiences.
Owner:CHENGDU HEIGE TECHNOLOGY CO LTD

Method, server, and computer program for generating relighted image based on object image

Disclosed is a method of generating a relighted image based on an object image according to various embodiments of the present invention for realizing the problems described above. The method includes acquiring a source original image, acquiring image characteristic information based on the source original image, and generating the relighted image based on the source original image, the image characteristic information, and target lighting information, in which the relighted image is an image reflecting a realistic human skin tone, texture, and a shadow effect under the target lighting conditions, and is an image whose a lighting effect is changed compared to the source original image.
Owner:BEEBLE INC

Real-time dynamic light and shadow rendering optimization method based on unreal engine

The invention discloses a real-time dynamic light and shadow rendering optimization method based on an unreal engine, and relates to the field of light and shadow rendering, and the method comprises the steps: firstly distributing shadow importance scores for all grid objects in a scene based on a camera view cone and AI context data, and carrying out the priority ranking of potential shadow projectors; and then, performance budget evaluation is carried out in combination with the current frame rate and the GPU load, and intelligent shadow projector selection and LOD application are carried out on the sorted shadow projection object list according to the performance budget evaluation. And finally, the optimized shadows to be rendered are sent to a light visual angle rendering and VSM page filling process in batches, and a movable light source optimization virtual schlieren is generated. According to the method, the unnecessary calculation overhead is remarkably reduced, so that the rendering efficiency and the frame rate stability are greatly improved while the high-quality dynamic light and shadow effect is ensured, and the core problem that the traditional performance and quality are difficult to balance is effectively solved.
Owner:YOULIANG (WUHAN) NETWORK TECH CO LTD

Data processing method and device, equipment, medium and program product

The embodiment of the invention discloses a data processing method and device, equipment, a medium and a program product. The method comprises the following steps: carrying out multi-modal data acquisition on a physical environment to obtain spectral data and point cloud data; performing scene modeling processing on the physical environment according to the spectral data and the point cloud data to obtain a first virtual scene; performing illumination rendering processing on the first virtual scene according to illumination parameters in the physical environment to obtain a second virtual scene; and carrying out fusion rendering processing on the second virtual scene by adopting a physical environment image collected for the physical environment under the target service to generate a virtual-real fusion image corresponding to the target service. By adopting the embodiment of the invention, the light and shadow effect of a real scene can be simulated in the virtual-real fusion picture, and the picture quality is remarkably improved.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

U-shaped groove grating ion beam etching method based on mask shadow effect

The invention discloses a U-shaped groove grating ion beam etching method based on a mask shadow effect, and relates to the technical field of U-shaped groove etching, and the method comprises the steps: placing a substrate with a photoresist grating mask in an inclined manner, and enabling an ion beam to bombard the photoresist grating mask in an inclined incidence manner; through a shadow effect generated by a photoresist grating mask on an ion beam, the etching dose distribution of different areas on the surface of a substrate is regulated and controlled, so that the etching dose of the central area of the groove bottom is greater than that of the areas on the two sides, and the U-shaped groove with a smooth and gradually-changed bottom contour is directly etched and formed. By constructing the smooth transition U-shaped groove bottom structure, sharp edges and corners are thoroughly eliminated, and the phenomenon of electric field concentration is remarkably relieved, so that the damage risk under high-power laser irradiation is effectively reduced, the stability of the grating in an extreme environment is improved, and the service life of the grating in the extreme environment is prolonged.
Owner:ANHUI ZHONGKE GRATING TECH CO LTD

Wind power plant light and shadow effect evaluation method and device and medium

The invention discloses a wind power plant light and shadow effect evaluation method and device and a medium. The problem that deviation exists in calculation of the shadow effect influence range of a traditional wind turbine generator is solved. The method comprises the following steps of: determining a shadow influence range of a wind wheel surface of each wind turbine generator at each moment in a year by taking true sun time at a machine location point of each wind turbine generator as a time standard; counting the total influence duration of each grid point according to the shadow influence ranges of all the wind turbine generators; and determining whether the design scheme meets a preset specification requirement or not according to the total influence duration of each grid point. According to the method, the wind power plant influence area is divided, the solar elevation angle and the solar azimuth angle are calculated point by point and moment by moment, so that the wind wheel surface shadow ellipse range of each wind turbine generator is calculated, the maximum influence duration of each point in the annual theory is obtained, the wind power plant shadow effect influence range calculation precision is improved, and the wind power plant shadow effect calculation efficiency is improved. And detailed data support is provided for environmental impact assessment of the wind power plant.
Owner:WINDEY ENERGY TECHNOLOGY GROUP CO LTD

Soft light air cushion and lighting system

ActiveCN222636460UNormal and effective usestable supportPhotographyLight treatmentVideo recording
The utility model provides a soft light air cushion and a lighting system, the lighting system comprises a soft light air cushion and a lamp, and light emitted by the lamp can be subjected to soft light treatment through the soft light air cushion. The soft light air cushion comprises a cushion body and a ventilation module, and the ventilation module comprises a ventilation pump and a pressure sensor. The pressure sensor can measure the pressure value of the inflation cavity in the pad body, and the ventilation pump comprises a first ventilation opening connected with the inflation cavity and a second ventilation opening communicated with the external environment. The ventilation pump is electrically connected with the pressure sensor so as to be opened or closed according to a pressure value signal, and when the ventilation pump is opened, the inflation cavity can be inflated through the first ventilation opening, so that when the pressure of the cushion body is insufficient, the pressure sensor is matched with the ventilation pump to effectively regulate and control the internal air pressure of the cushion body in time, and the filling state of the cushion body is guaranteed; the soft light air cushion is ensured to be normally and effectively used, so that the soft light air cushion not only can effectively support the lamp, but also can provide a high-quality light and shadow effect for photography and video recording operation.
Owner:GODOX PHOTO EQUIPMENT CO LTD

AIGC-based interactive intelligent content generation method and system

The invention relates to the technical field of artificial intelligence, and particularly discloses an interactive intelligent content generation method and system based on AIGC. The method comprises the steps that a user editing instruction is collected and analyzed to obtain a first semantic body, and meanwhile a target change vector is extracted; performing connectivity analysis on the high-response pixel points to determine a candidate linkage area; obtaining a candidate linkage area, judging whether a physical shielding or self-shielding effect exists or not, and screening an effective response area; performing attenuation correction on the target change vector, and deriving a collaborative mapping parameter; and constructing a light and shadow guide matrix based on the collaborative mapping parameters, and performing directional guide processing on the effective response area. The system comprises an intention analysis module, a communication analysis module, a region screening module, an attenuation correction module and a synchronous rendering module. According to the invention, synchronous rendering of semantic subject change and ambient light and shadow effects can be realized.
Owner:EDEN INFORMATION SERVICE LTD

Intelligent dynamic light and shadow projection system and control method thereof

The invention relates to the technical field of light and shadow projection, in particular to an intelligent dynamic light and shadow projection system and a control method thereof. The method comprises the following steps: acquiring a current scene image based on a camera in a projection lamp, and performing scene topological structure analysis and scene semantic representation adaptation to generate real-time scene semantic representation; performing user illumination intention analysis according to the current scene image, and performing depth scene illumination demand prediction based on real-time scene semantic representation so as to obtain illumination demand prediction features; identifying a user projection instruction based on an IC chip in the projection lamp; performing target light and shadow effect modulation calculation according to the user projection instruction so as to generate a target light and shadow effect modulation parameter; and multi-target parameter constraint solution is carried out based on the illumination demand prediction features, so that optimal solution parameters of dynamic light and shadow projection are obtained. Parameters are adjusted through real-time scenes and user behaviors, and the projection visual effect and the scene response capability of the projection lamp are improved.
Owner:惠州纳安特汽车部件有限公司

Bio-rhythm synchronous light and shadow adjusting device for children's toy

PendingCN120264525AElectrical apparatusToysActivity cycleLight perception
The invention relates to a light and shadow adjusting device for a biological rhythm synchronous child toy, and aims at solving the problems that an existing toy is fixed or random in light effect, cannot adapt to the physiological rhythm of a child and is prone to causing visual fatigue. The device comprises a light sensation acquisition unit, a rhythm identification unit, a parameter generation unit and a lighting effect driving unit. The light sensing acquisition unit is used for acquiring environment illumination intensity and generating illumination sensing data; the rhythm recognition unit combines the illumination perception data with the current time information, generates target rhythm state data according to a preset physiological rhythm model, and is used for judging the current activity cycle stage of the child; a parameter generation unit generates a corresponding light and shadow adjustment parameter set according to the rhythm state data; the lighting effect driving unit controls the light-emitting assembly according to the parameter set and outputs light and shadow effects matched with the physiological rhythm of the child, such as stimulation enhancement in the daytime and soft transition at night, so that sensory requirements of different time periods are dynamically met, attention is effectively improved, and visual burden is reduced.
Owner:WENZHOU POLYTECHNIC

Intelligent display system and method for costume design

The invention relates to the technical field of costume design, in particular to an intelligent display system and method for costume design, and the method comprises the following steps: receiving a costume design sketch, employing a convolutional neural network to extract contour features, and generating a structured 3D costume model containing a layout topological relation and fabric physical parameters; obtaining user body type scanning data, and constructing a parameterized virtual human body with an anatomical level and soft tissue dynamic response capability; dynamic fitting of the garment model and a virtual human body is achieved through a physical simulation engine, and garment deformation behaviors changing along with actions are calculated; and analyzing the scene semantic tag input by the user, matching illumination, accessories and background elements in a preset material library, and generating an interactive 3D display scene with physical interaction and light and shadow effects. According to the method, the costume design modeling efficiency and simulation precision can be improved, intelligent matching of the costume style and scene semantics is realized, and the immersion of costume display and the user experience are enhanced.
Owner:SHANDONG UNIV OF ART & DESIGN

Projection lamp shadow effect intelligent adjustment method based on artificial intelligence

The invention provides a projection lamp shadow effect intelligent adjustment method based on artificial intelligence, and the method comprises the steps: obtaining the material type and reflection coefficient of the wall surface of each region of an exhibition space through a pre-established wall surface material database, carrying out the classification processing according to the reflection characteristics of different materials, and obtaining a material reflection distribution diagram; acquiring light intensity distribution in the space based on stray light distribution characteristics, performing gridding decomposition on the light intensity distribution, and obtaining light intensity and light field distribution uniformity of each grid area through numerical integration; according to the adjusted projection angle and light source position, generating a control parameter for the projection equipment, adjusting the output intensity and direction of the projection light source, and obtaining the light distribution intensity after the control parameter of the projection equipment is adjusted; and if the contrast ratio and the color deviation value of the detail area do not meet the preset standard, optimizing the light source control parameters through an ambient light compensation mechanism in combination with the accumulated intensity data of the space corner to obtain a light compensation result.
Owner:谢煜

Digitization-based online virtual cloud exhibition hall system

The invention discloses an online virtual cloud exhibition hall system based on digitization, and relates to the technical field of Internet. A data acquisition module of the system collects exhibit materials and exhibition hall setting information, and preprocesses and classifies the exhibit materials and the exhibition hall setting information so as to improve the material quality and optimize the display content. The 3D modeling module constructs high-precision exhibit and exhibition hall models to ensure that the exhibit and exhibition hall models are consistent with real objects. The virtual display module not only adds rich materials and light and shadow effects for exhibits, but also designs diversified interaction modes to improve user experience through a virtual reality technology. The interaction module provides a plurality of functions including guide point setting, automatic roaming path recording, hot spot placement and the like, and supports multi-person online interaction and communication. And the data analysis module provides support for exhibition hall management and personalized recommendation through deep mining of user behavior data, and displays analysis results to managers and audiences in a visual form by adopting descriptive, exploratory and predictive analysis methods.
Owner:GUANGDONG HUAPEI EDUCATIONAL EQUIP CO LTD

Side-scan sonar target sample image generation method

The invention belongs to the field of acoustic target automatic identification in ocean engineering, and particularly relates to a side-scan sonar target sample image generation method, which comprises the following steps of: 1) segmenting a target sample image to generate a target mask image; 2) carrying out local distortion deformation on the segmented target sample image, and simulating disturbance during side-scan sonar imaging; 3) normalizing the brightness; 4) performing superposition fusion on the distorted target sample image and the real sonar background image through a Poisson fusion method; 5) according to a side-scan sonar imaging mechanism, generating a shadow effect conforming to a physical law at the edge of the target sample image; 6) filtering and noise adding processing; and generating a target sample image similar to the real side-scan sonar data for training and verification of a deep learning model. The sample data generated by the method is highly vivid, covers multiple disturbance scenes, can be directly used for training a deep learning model, and remarkably improves the detection accuracy and recall rate of underwater targets (such as sunken ships and preset objects).
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Preparation method of manganese-cobalt spinel coating for SOFC (solid oxide fuel cell) connector and coating

The invention relates to the technical field of solid oxide fuel cells, in particular to a preparation method of a manganese-cobalt spinel coating for a solid oxide fuel cell (SOFC) connector and the coating. The method comprises the following steps: treating a substrate, cleaning a target material, depositing a MnCo alloy coating by high-power pulse magnetron sputtering, and performing thermal conversion to form the (Mn, Co) 3O4 spinel coating. By optimizing process parameters, the uniformity, compactness and high-temperature oxidation resistance of the coating are remarkably improved, and the problems of shadow effect and coating defects existing in traditional direct-current magnetron sputtering are solved. The thickness of the obtained coating ranges from 4.8 micrometers to 5.3 micrometers, the surface roughness is lower than 1 micrometer, external diffusion of the Cr element can still be effectively restrained after the coating serves for 840 hours for a long time at the temperature of 800 DEG C, and the ASR value is lower than 30 m omega.cm. The preparation process is simple, is suitable for industrial production, and has high practical value and popularization prospect.
Owner:NORTHEASTERN UNIV CHINA

Website dynamic light and shadow rendering processing method, device, storage medium and electronic device

The present invention provides a website dynamic light and shadow rendering processing method, device, storage medium and electronic device, which are applied to the field of computer technology. The present invention obtains the current web page layout parameters of the target website, including the visual attribute information of various elements, and uses a multi-objective function for optimization to obtain the optimized web page layout parameters. The multi-objective function is constructed based on the user attention model, the computational cost model and the visual effect model. The web page is divided into multiple cell grids, and the cell state at the next moment is calculated based on the state of the current cell and its neighboring cells, combined with the optimization parameters. At the next moment, all cell states are updated simultaneously, and the light and shadow effects of the target website are dynamically rendered. By optimizing the layout parameters and dynamically adjusting the light and shadow effects, the present invention realizes dynamic adaptive subdivision rendering of web pages, improves user experience and optimizes resource utilization.
Owner:HUNAN MANGO DIGITAL INTELLIGENCE ART TECH CO LTD

Soft light air cushion and lighting system

ActiveCN222636459UNormal and effective useAvoid breakagePhotographyVideo recordingLighting system
The utility model provides a soft light air cushion and a lighting system, the lighting system comprises a soft light air cushion and a lamp arranged on the soft light air cushion, and light emitted by the lamp can be subjected to soft light processing through the soft light air cushion. The soft light air cushion comprises a cushion body and a pressure release valve. The pressure release valve comprises a valve body, an adjusting column and a sealing piece. When the air pressure in the inflation cavity of the cushion body exceeds a set threshold value, the adjusting column can move relative to the valve body so that the sealing piece can be separated from the pressure relief opening of the valve body for pressure relief, and therefore the air pressure in the cushion body can be effectively adjusted and controlled through the pressure relief valve, and the situation that the cushion body is damaged due to too large pressure is avoided; the soft light air cushion is ensured to be normally and effectively used, and the lighting system is ensured to provide high-quality light and shadow effects for photography and video recording operation.
Owner:GODOX PHOTO EQUIPMENT CO LTD

Partitioned coating method for space reflector

The invention relates to the technical field of optical coating, in particular to a partitioned coating method for a spatial extreme ultraviolet band reflector, which aims to coat different or same films on more than two or more regions at certain intervals. The method comprises the following steps: firstly, designing more than two or more EUV wave band multilayer films, wherein the structures and the central wavelengths of the EUV multilayer films can be different; then designing an adjustable shielding coating tool which is in direct contact with the mirror surface of the reflecting mirror; the EUV wave band is plated on the surface of the cleaned reflecting mirror in a regional mode through an adjustable shielding film plating tool; and finally, testing the reflecting mirror after film coating. According to the invention, the boundary of the coating area is clear and has no shadow effect, and stray light crosstalk is reduced; and the film is good in film forming quality, small in film stress, excellent in optical performance, good in film firmness and high in space environment adaptability.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI