38 results about "Halo effect" patented technology

The invention belongs to the technical field of automatic detection, and discloses an online laser detection and grading regulation and control system for particle size distribution of crushed raw ore. The invention aims to solve the problems of halo effect interference caused by adhesion of fine dust in a complex industrial environment and insufficient detection precision of a traditional method. The system obtains dynamic scattering light field data through the laser scanning module, identifies a halo effect region and generates a compensation coefficient by using the light field preprocessing module, and realizes accurate reconstruction of particle boundaries in combination with the edge reconstruction module. The particle size distribution analysis module extracts multi-dimensional geometric features based on the accurate boundary data, and generates a real-time particle size distribution curve. The grading strategy generation module formulates a regulation and control strategy according to deviation characteristics of the curve and a preset standard, and the dynamic regulation and control module adjusts parameters of crushing equipment in real time and optimizes particle size distribution. The method effectively overcomes the halo effect interference, improves the detection precision and the system stability, breaks through the single limitation of a traditional method, and provides comprehensive data support for a downstream process.

The invention belongs to the technical field of semiconductor display, particularly relates to a backlight and display drive cooperative control LED module system, and aims to solve the problems of brightness distortion, halo effect and energy efficiency degradation caused by disconnection of backlight and pixel control in high dynamic range display. The system generates adaptive backlight distribution through image semantic analysis and illumination field reconstruction, and realizes stable light output in combination with dynamic cutting compensation and temperature feedback; and the display driving end performs gray scale feedforward correction according to the backlight state, and introduces a cross-domain error back propagation mechanism to realize frame-level online calibration. And the dynamic response and the processing real-time performance are further optimized through motion vector sensing and double-phase time sequence scheduling. According to the system, the contrast ratio is increased to more than 100000: 1, the halo radius is reduced to 40% of that of a traditional scheme, the power consumption is reduced by 18%, and the visual experience and the operation stability are remarkably improved.

The application discloses a high-contrast MiniLED control method, system and medium, relates to the technical field of MiniLED display control, and ensures the uniform distribution of luminosity on the screen by subdividing luminosity data and adjusting the luminosity data on the adjacent boundary line; meanwhile, the precision adjustment of the luminosity color difference avoids unnatural color transition or obvious color difference problems; finally, the luminosity regulation model can realize more accurate luminosity coordinated transition, the display effect is more real and delicate, and a plurality of display scenes can be adapted; the whole realizes accurate control and optimization of the luminosity of the MiniLED backlight area; each link solves the problems of luminosity unevenness, color distortion and unnatural brightness transition that may occur in display in different dimensions, especially plays a key role in reducing the halo effect.

The invention belongs to the technical field of infrared image processing, and particularly relates to an infrared continuous zoom lens cold halo effect correction method. According to the method for correcting the cold halo effect of the infrared continuous zoom lens, the whole zoom process of the continuous zoom lens is calibrated, correction templates with different focal lengths are stored, the corresponding correction templates are configured according to the zoom positions, and the method is suitable for imaging with various focal lengths. According to the correction method, calibration and modeling are carried out based on a low-temperature uniform scene; in the zooming process, matched correction parameters are calculated and generated in real time according to the focal length position, and the cold halo effect is removed. The positions of a plurality of focal length points are respectively calibrated according to needs, and the focal length between adjacent calibrated focal length points is realized through neighborhood weighted interpolation. The calculation is simple, real-time and effective. And parameters of the cold halo removing method do not need to be adjusted. Before the infrared camera leaves a factory, the curve template for removing the cold halo effect is calibrated and stored, and parameter adjustment is not needed in the using process of the infrared camera.

The invention relates to the technical field of computer communication, in particular to an occlusion detection method and system based on a mobile platform shader, and the method comprises the following steps: S1, predefining a group of sampling points for obtaining depth information from different positions, and obtaining the parameters of each sampling point; s2, traversing the sampling points by using a cycle and calculating corresponding depth sampling points; s3, performing normalized mapping on the depth sampling points, and mapping the coordinates of the depth sampling points to a range of 0-1 so as to sample in the depth texture; s4, comparing the depth information obtained by sampling with a threshold value, and judging whether a depth sampling point is shielded by other objects or not; according to the invention, object occlusion detection can be efficiently realized on the mobile device, so that the reality and interactivity of image rendering are enhanced; the shielding problem of the halo effect in the mobile game can be solved, and the game picture is more dazzling and vivid.

The present invention provides a driving method, system, and storage medium for a high-contrast Mini LED backlight module. Based on the array arrangement rules of the backlight module, the system divides the module into independent partitions and obtains channel information. The system analyzes the brightness distribution of the input image based on a preset backlight refresh frequency, and determines the first target brightness information for each partition through histogram statistics and metadata analysis. Subsequently, the system detects the brightness deviation of adjacent partitions, uses a gradient interpolation algorithm to smooth areas exceeding a preset threshold, and generates second target brightness information to suppress the halo effect. The system also configures constant current output and PWM duty cycle based on a reference current and a floating current, achieving fine dimming in low-brightness areas and stable output in high-brightness areas. Furthermore, the system collects standard brightness data through a factory calibration mode to generate a compensation coefficient matrix, dynamically correcting the partition brightness during operation. A temperature sensor is used to monitor and compensate for brightness attenuation caused by temperature rise in real time, ensuring brightness uniformity.

The present invention discloses a method, system, device and storage medium for defogging river patrol video images. The defogging method for river patrol video images divides the image to be processed by using an adaptive threshold segmentation method to obtain the sky region and the non-sky region. When the proportion of the sky region is greater than a preset value, the first transmission rate map is obtained by using the ratio re-estimation method according to the sky region and the non-sky region. When the proportion of the sky region is less than or equal to the preset value, the first transmission rate map is calculated by using the dark channel model, and the atmospheric light value is calculated based on different scenes, which improves the accuracy and precision of the calculation of the transmission rate map of the image to be processed. Subsequently, the first transmission rate map is refined by using the fast guided filter algorithm, and the problem of halo effect in the defogged image is solved; by introducing a tolerance mechanism, the defogged image is calculated by using the fogging model, and the color distortion phenomenon in the defogged image is suppressed; the defogging method for river patrol video images of the present invention has a low calculation complexity and a short processing time, meeting the real-time requirement.

The invention discloses a method and system for measuring the halo effect of a Mini-LED backlight partition liquid crystal display module. The method comprises the following steps: building a halo measurement platform in a dark environment; a standardized test pattern is designed to cover the crossing conditions of different backlight partitions; the test patterns are displayed and shot in sequence, and crosstalk is avoided; analyzing halo brightness distribution data, and extracting display area peak brightness, halo peak brightness and halo width parameters; constructing a halo two-dimensional Gaussian distribution model; constructing a retina halo perception model based on a CIE glare spread function; and carrying out a subjective perception experiment, and establishing a halo perception intensity quantitative model. The system comprises a dark environment building module, a test pattern design module, a halo analysis module, a retina perception simulation module and a quantitative model module. According to the invention, the standardization, high-precision measurement and human eye perception quantification of halo can be realized, and the image quality evaluation capability of the Mini-LED display module is improved.

The invention belongs to the technical field of digital image processing, and discloses a satellite image simulation method and system for simulating a real scene, and the method comprises the steps: importing a three-dimensional model of a satellite into an unreal engine for rendering, and obtaining a satellite motion image sequence under different illumination conditions, different shooting angles and different surrounding attitudes; performing scene authenticity adjustment on the satellite motion image, wherein the scene authenticity adjustment comprises target image distance adaptability adjustment, star point generation, real scene blurring and noise simulation; semi-automatic labeling and halo effect simulation of key point labels of the output image are further included, and the halo effect simulation is used for simulating the influence of extreme light source conditions of a real shooting environment on the shooting quality and content. According to the method, the comprehensive coverage capability of the satellite image sequence on the satellite attitude is improved, the simulation image is closer to the real scene environment, the halo effect influence in the imaging process is fully considered, and thus the comprehensiveness and authenticity of the simulation image are improved.

This application relates to the field of image processing technology. Specifically, it relates to an image defogging method for eliminating the halo effect, which can solve the problem of halos in the image after defogging to a certain extent. The image defogging method includes the following steps: obtaining an input image; determining the atmospheric light value corresponding to the input image, where the atmospheric light value is a matrix with the same size as the input image; determining the image transmittance map corresponding to the input image by fusing the dark channel transmittance map and the bright channel transmittance map according to a preset ratio; substituting the atmospheric light value and the image transmittance map into the atmospheric scattering model to obtain an output image. This application can eliminate the halo effect of images taken in a haze environment, and eliminate halos through the method of obtaining the atmospheric light value and the method of determining the image transmittance map, improve the adaptability of the image, and facilitate subsequent processing.

The invention discloses a control method and system of a high-contrast Mini LED and a medium, and relates to the technical field of Mini LED display control, and the control method of the high-contrast Mini LED ensures uniform distribution of luminosity on a screen by subdividing luminosity data and adjusting luminosity data on an adjacent boundary; meanwhile, the accuracy of the luminosity and the chromatic aberration is adjusted, so that the problem of unnatural color transition or obvious chromatic aberration is avoided; the luminosity regulation and control model is finally constructed, so that more accurate luminosity coordination transition can be realized, the display effect is more real and fine, and the method is suitable for various display scenes; the accurate control and optimization of the luminosity of the Mini LED backlight area are integrally realized; each link solves the problems of uneven luminosity, color distortion and unnatural brightness transition possibly occurring in display in different dimensions, and particularly plays a key role in reducing the halo effect.

The invention discloses a method for adjusting ultra-high contrast accurate partition array backlight, and relates to the field of liquid crystal display backlight control. The method comprises the following steps: firstly, generating initial target brightness of a backlight partition based on image content statistics, and calculating a simulated receiving light field containing neighborhood crosstalk by using a pre-constructed optical diffusion weight matrix; on the basis of the deviation between the simulated light field and the target brightness, calculating a correction gain coefficient by using a nonlinear formula containing a halo suppression factor, and adaptively adjusting the suppression intensity in combination with a boundary brightness gradient; and generating a driving signal through time domain smoothing and nonlinear mapping, and reversely compensating the liquid crystal transmittance. Through accurate light field simulation and nonlinear correction, the problems of halo effect and brightness distortion generally existing in the traditional partition backlight technology are effectively solved, and the contrast ratio and uniformity of a display picture are remarkably improved.

The utility model discloses a coating structure with a halo effect. The coating structure comprises a base material, a first primer layer, a first white primer layer, a second white primer layer, a halo layer and a transparent varnish layer, the first polishing layer is coated with the first primer layer; the first white primer layer is coated on the second polishing layer; the third polishing layer is coated with the second white primer layer; and the transparent varnish layer is coated on the halo layer. The second polishing layer is coated with the first white primer layer, the third polishing layer is coated with the second white primer layer, the two layers of primer can perfectly cover the color of the base material, the final visual effect of the coating structure is not affected by the color of the base material, the fourth polishing layer is coated with the halo layer, the upper surface of the halo layer is a halo face, and therefore the effect of the coating structure is improved. The halo layer is a light layer, the halo surface is a bright surface, good visual impact can be brought to people, a gorgeous atmosphere can be created, the decoration effect of the halo layer is greatly exerted, and the halo is uncertain and cannot cause visual fatigue to people.

The invention provides an automatic face feature recognition system and method based on image processing, relates to the technical field of face recognition, and aims to guide multi-scale feature fusion and illumination decomposition by using a thermodynamic diagram generated by face structure information, effectively enhance feature expression of key areas of five sense organs, suppress background interference and improve recognition efficiency. An improved Retinex algorithm is combined with a thermodynamic diagram to realize adaptive illumination component estimation, the halo effect of a traditional method in an edge region is overcome, illumination invariance of reflection component features is ensured, and the illumination invariance of the reflection component features is ensured by generating an accurate shielding mask from a reflection component diagram and extracting local discriminative features from an unshielded region. The method can effectively cope with challenges brought by shelters, finally, weighted fusion of global reflection component features and local discriminative features is combined with principal component dimensionality reduction and nearest neighbor classification, a recognition process with clear hierarchy and cooperative work is formed, and reliable identity recognition under double difficulties of illumination variation and local sheltering is realized.

The present invention belongs to the field of digital image processing technology and discloses a satellite image simulation method and system for simulating real scenes. The method includes: importing a three-dimensional model of a satellite into an Unreal Engine for rendering to obtain a sequence of satellite motion images under different lighting conditions, different shooting angles, and different circumferential attitudes; adjusting the satellite motion images for scene authenticity, including adaptive adjustment of target image distance, star point generation, real scene blurring, and noise simulation; and also includes semi-automatic labeling of key point labels of the output image and halo effect simulation, the halo effect simulation being used to simulate the impact of extreme light source conditions in a real shooting environment on shooting quality and content. The present invention improves the comprehensive coverage capability of the satellite image sequence for satellite attitudes, making the simulated images closer to the real scene environment, and fully considering the influence of the halo effect during the imaging process, thereby improving the comprehensiveness and authenticity of the simulated images.

The application provides a kind of face feature automatic identification system and method based on image processing, it is related to face recognition technical field, the present application is generated by using face structure information and is guided multi-scale feature fusion and illumination decomposition by heat map, effectively enhance the feature expression of key area of five organs, while inhibiting background interference, improved Retinex algorithm combines heat map and realizes adaptive illumination component estimation, overcome the halo effect of traditional method in edge area, ensure the illumination invariance of reflection component feature, by generating accurate occlusion mask from reflection component map, and extracting local discriminative feature to unoccluded area, it can effectively deal with the challenge brought by occlusion, finally, the weighted fusion of global reflection component feature and local discriminative feature, combined with principal component dimension reduction and nearest neighbor classification, constitute clear, collaborative work identification process, realize reliable identity recognition under the double difficulty of illumination change and local occlusion.

The utility model discloses a hidden lamp strip type atmosphere lamp installation structure and television equipment. The hidden lamp strip type atmosphere lamp installation structure comprises an installation face frame with an inverted-U-shaped atmosphere lamp installation part and a lamp strip type atmosphere lamp arranged in the installation face frame. A sunken groove is formed in the side, close to the screen, of the atmosphere lamp mounting part, and the lamp strip type atmosphere lamp is arranged in the sunken groove so that light of the lamp strip type atmosphere lamp can be emitted out along the rear side face of the screen, and the light of the lamp strip type atmosphere lamp can be diffused to the position away from the front of the screen in a diffuse mode. According to the novel hidden lamp strip type atmosphere lamp installation mode, the lamp effect that the halo atmosphere of the lamp strip cannot be seen is created, damage to the naked eyes of a user is avoided, meanwhile, the better halo effect can be provided, and the user experience is improved.

The invention belongs to the field of wide-spectrum laser atmospheric transmission evaluation, and particularly relates to a wide-spectrum light beam atmospheric transmission thermal halo effect simulation method and system. The method comprises the steps of simulating linear effect complex amplitudes at different transmission distances under a linear effect based on transmission scene parameters; calculating light intensity distribution factors at different transmission distances based on simulation results of linear effect complex amplitudes at different transmission distances; based on the transmission scene parameters and the light intensity distribution factors at different transmission distances, phase disturbance caused by the thermal halo effect is calculated; on the basis of phase disturbance caused by the thermal halo effect, complex amplitudes at focal lengths at different moments are simulated; and calculating the long-time average light intensity distribution based on the analogue simulation results of the complex amplitudes at the focal lengths at different moments. According to the method, the wide-spectrum laser is equivalent to the single-wavelength laser, and simulation of the atmospheric transmission thermal halo effect of the wide-spectrum light beam is achieved based on the light intensity distribution factor of the wide-spectrum light beam and the fluid mechanics equation set of interaction between the wide-spectrum light beam and the atmosphere.

The invention discloses a halo rendering method, device and equipment, a medium and a product. The method comprises the following steps: displaying a light source element and at least one target element in a display interface; the target element is rendered with a halo effect; the halo effect is determined based on the light emitting effect of the light source element and the distance between the target element and the light source element; and adjusting the halo effect of the target element in response to the light-emitting effect change of the light source element. When the light-emitting effect of the light source element in the display interface changes, the halo effect generated on the target element is correspondingly adjusted according to the change condition of the light-emitting effect. The dynamic halo effect is added to the target element in the display interface, the display interestingness is increased, and the display effect of the interface is optimized.

A method is provided for use in reducing a size of halo effect in an ophthalmic lens. The method comprises: providing data indicative of a given ophthalmic lens with a first pattern providing prescribed vision improvement, processing said data indicative of the features of the first pattern and generating data indicative of a variation of at least one feature of the first pattern resulting in a second pattern which maintains said prescribed vision improvement and reduces a size of halo effect as compared to that of the lens with the first pattern.

Embodiments of the invention provide a halo effect generation method and device, and a storage medium. The method comprises the steps of obtaining target halo effect intensity of an original image; determining a target parameter of fuzzy processing according to the target halo effect intensity and a preset mapping relation; performing first-time fuzzy processing on the original image by adopting a first target parameter, and overlapping the image after the first-time fuzzy processing with the original image to obtain a first overlapped image; and performing second-time fuzzy processing on the first superimposed image by adopting a second target parameter, superimposing the image subjected to the second-time fuzzy processing with the original image to obtain a second superimposed image, and obtaining a target image meeting the target halo effect strength according to the second superimposed image. According to the embodiment of the invention, the target halo effect intensity is achieved through multiple times of fuzzy processing and superposition processing, and the calculation cost of each time of fuzzy processing is reduced, so that the calculation cost of the halo effect generation process is reduced, the requirement on equipment is reduced, and the method can be suitable for a scene with relatively high target halo effect intensity.

The invention discloses a wave optics-based supercontinuum laser atmospheric transmission thermal halo effect numerical simulation method, relates to the technical field of free space transmission of high-power supercontinuum laser and high-power wide-spectrum laser, and aims to generate a supercontinuum laser comprehensive thermal halo phase screen based on a line-by-line accumulation method of an energy accumulation thermal effect. And far-field light intensity distribution is obtained by solving the paraxial wave equation and the radiation transfer equation, and numerical simulation of the super-continuum spectrum laser atmospheric transfer thermal halo effect is achieved.

The invention provides a remote sensing image defogging method based on maximum haze line optimization, and the method specifically comprises the steps: carrying out the box-type filtering of a minimum channel of a foggy degraded image, and taking a pixel value with the maximum brightness in a filtering result as a numerical value of atmospheric light; then, pixels in the image are clustered according to a spherical coordinate system, and the roughly estimated transmissivity is calculated according to a clustering result; extracting a noise region of the transmissivity by using a noise discrimination formula, and stretching the maximum haze propagation distance of the noise region to obtain the transmissivity after noise correction; filtering the transmissivity by using an SWF (Single Wave Filter) and guided filtering; and finally, carrying out relative total variation smoothing on the transmissivity according to the relative total variation smoothing weight so as to obtain a processed foggy day degradation image. The method has the remarkable advantages in the aspects of selecting the image atmospheric light value and optimizing the scene transmittance, the color distortion of the restored image is small, the halo effect is avoided, and the method has great significance in image sharpening.

The invention provides a screen space halo method and system based on a mobile platform, and the method comprises the following steps: 1, setting and preparing a halo model on the mobile platform, the halo model being composed of a plurality of halo elements, the information of the halo elements comprising vertex data and uv data; 2, preparing a texture map simulating a halo effect; 3, in the vertex shader, the rotation angle and position of the halo element and the final color of the halo element are obtained according to the vertex data; 4, in the fragment shader, sampling a texture map of the halo element, and coloring the halo element according to an output screen color obtained in the vertex shader to achieve a halo effect; the halo effect can be customized according to specific requirements, and the requirements of different scenes are met.

The application provides an underwater light halo image correction method based on radial gradient distribution characteristics, which comprises the following steps: constructing an imaging model of an underwater light halo image; solving the imaging model by using a Bayesian framework, introducing radial gradient distribution and hyper-Laplacian distribution to constrain the optimization process, and obtaining a target equation by using maximum posterior probability in combination with probability distribution of different image layers; then, using an alternating iterative updating method to decompose the target function into a plurality of sub-problems for solving; and performing brightness adjustment, color correction, contrast enhancement and other post-processing on the estimated reflection layer by using an adaptive brightness scaling factor and a multi-scale gradient domain contrast stretching to obtain a final clear underwater image after light halo correction. The application firstly considers a real complex light scene during underwater operation of a UUV, can effectively remove the light halo effect caused by an artificial strong light source, reduces serious interference caused by the light halo effect on subsequent computer vision tasks, and significantly improves underwater image quality.

The present invention provides a method and system for suppressing the halo effect of an all-in-one machine LED display, including: S1, identifying whether there is a halo effect in the all-in-one machine LED display. If yes, go to S2; S2, turning on the light-shielding strip arranged around the all-in-one machine LED display, and identifying whether the halo effect is effectively suppressed. If yes, go to S8; S3, turning on the soft light supplementary light strip arranged around the all-in-one machine LED display, and identifying whether the halo effect is effectively suppressed. If not, go to S4; S4, adjusting the brightness of the all-in-one machine LED display, and identifying whether the halo effect is effectively suppressed. If not, go to S5; S5, adjusting the contrast of the all-in-one machine LED display, and identifying whether the halo effect is effectively suppressed. If not, go to S6; S6, adjusting the angle of the all-in-one machine LED display, and identifying whether the halo effect is effectively suppressed. If not, go to S7; S7, updating the brightness of the all-in-one machine LED display and the contrast of the all-in-one machine LED display, and then go to S4; S8, ending the process.

The invention discloses a data processing method and device for light simulation. The method comprises the steps of obtaining to-be-processed data, wherein the to-be-processed data is related data used for representing large-scene light simulation; light rendering processing based on an optimized illumination model is carried out on the to-be-processed data to obtain illumination rendering data, and the illumination rendering data is rendering data used for representing illumination light in the large scene; environment light rendering processing is carried out on the to-be-processed data to obtain environment light rendering data, and the environment light rendering data is rendering data used for representing environment light in the large scene; and performing simulation processing on the illumination rendering data and the environment light rendering data to obtain light simulation result data. By optimizing the illumination model, performing illumination rendering on the light-emitting object based on the optimized illumination model, and combining the light-emitting object and halo effect rendering, dynamic simulation of light in a large-scale illumination scene is realized, and the problem of poor large-scene light simulation effect in the prior art is solved.

The invention discloses a halo effect generation method and device, electronic equipment and a readable storage medium. The method comprises the following steps: determining a target halo effect type to be applied; determining the shape of a light sheet corresponding to the target halo effect type; according to the shape of the light sheet and the distance field data of the virtual light source and the light sheet, a light spot image corresponding to a target halo effect type is generated, and the target halo effect type comprises a first target halo effect type and / or a second target halo effect type; the first target halo effect type is a target halo effect type representing a halo effect needing to be partially shielded by the virtual object, and the second target halo effect type is a target halo effect type representing a halo effect not needing to be partially shielded by the virtual object; and performing rendering display based on the light spot image corresponding to the target halo effect type. The method provided by the embodiment of the invention can reduce performance consumption.

The invention provides a driving method and system for a high-contrast Mini LED backlight module and a storage medium, and the method comprises the steps: dividing independent partitions based on an array arrangement rule of the backlight module, obtaining channel information, and analyzing the brightness distribution of an input image in combination with a preset backlight refresh frequency. Determining first target brightness information of each partition through histogram statistics and metadata analysis; and then, brightness deviation of adjacent partitions is detected, smooth adjustment is carried out on areas exceeding a preset threshold value by using a gradient interpolation algorithm, second target brightness information is generated to suppress a halo effect, and constant current output and a PWM duty ratio are configured in combination with the reference current and the floating current. Fine dimming in a low-brightness area and stable output in a high-brightness area are realized. In addition, standard brightness data is collected in a factory calibration mode to generate a compensation coefficient matrix, the partition brightness is dynamically corrected during operation, brightness attenuation caused by temperature rise is monitored and compensated in real time in combination with a temperature sensor, and brightness uniformity is ensured.

The present invention relates to the field of display technology, and discloses a halo suppression method and backlight system based on edge compensation. The method comprises: detecting the brightness difference boundary between adjacent dimming zones to determine the halo risk area; calculating the brightness gradient distribution of the halo risk area; and generating a transition compensation area based on the brightness gradient distribution to adjust the brightness distribution of the backlight at the boundary. By calculating the brightness gradient distribution and generating the transition compensation area, the brightness distribution of the backlight at the boundary is adjusted, achieving a natural brightness transition, effectively eliminating the edge halo effect caused by the brightness difference between adjacent dimming zones, and significantly improving image clarity and contrast.