431 results about "Light exposure" patented technology

A method for predicting risk exposure includes receiving a particular set of data acquired via a sensor. The method for predicting risk exposure further can include analyzing, via a machine learning (ML) model, the particular set of data. The analyzing can include determining that the particular set of data represents a particular light exposure pattern corresponding to a light exposure pattern correlated with a risk pattern. The ML model can be trained with a first set of data and a second set of data to identify a correlation between the light exposure pattern and the risk pattern. The method for predicting risk exposure also can include predicting a risk exposure for a user based on the particular set of data. The method for predicting risk exposure also can include providing a notice indicating the risk exposure.

The invention discloses an acer elegans cross breeding method based on flowering phase difference regulation and control, and belongs to the technical field of garden plant breeding. The method comprises the following steps: selecting an acer elegans variety of which the natural early flowering phase difference is greater than or equal to 10 days and the genetic distance is greater than or equal to 0.5 as a cross parent, carrying out low-temperature refrigeration and shading blue light supplementing treatment on a female parent to delay the flowering phase, and carrying out prolonged illumination, red light supplementing and hormone and nutrient solution spraying on a male parent to advance the flowering phase; male parent pollen is collected through a vacuum negative pressure adsorption device and stored in a closed container, a sucrose solution is sprayed to female parent stigmas before pollination, and repeated pollination is conducted through a directional nozzle at 9-11 o'clock every day; carrying out stratification treatment and temperature-difference temperature-control germination on the hybrid seeds, and carrying out light-temperature regulation and control seedling culture after sowing; the molecular marker is used for verifying the hybridization authenticity and target traits, phenotype determination is carried out on three-year-old seedlings to complete breeding, the hybridization obstacle caused by asynchronous flowering phases of the caenorhabditis elegans varieties is solved through the flowering phase regulation and control technology, and the hybridization success rate is increased.

One or more of the described systems, methods, and apparatuses relate to imaging devices with integrated light exposure control. An imaging device comprises an image sensor and a light modulation layer coupled to the image sensor. The light modulation layer comprises a plurality of liquid-crystal (LC) device pixels over the image sensor. The imaging device comprises control circuitry coupled to the image sensor and the light modulation layer. The control circuitry is configured to apply a transparency mask to the light modulation layer by modifying, based on at least one frame captured at the image sensor, pixel attributes of the plurality of LCD pixels for modulating exposure of the image sensor.

The invention discloses a self-adaptive power generation optimization control system for a greenhouse photovoltaic ceiling, relates to the technical field of ceiling power generation control, and is used for solving the problem that photosynthetic efficiency and yield are affected due to the fact that crops are in a state of insufficient illumination or excessive illumination in a growth stage. The method comprises the following steps: calculating illumination deviation by combining an illumination demand library and an illumination sensor; judging an illumination level according to deviation and photosynthetic response characteristics; collecting a leaf potential and a transpiration rate to calculate photosynthetic efficiency; comprehensively judging whether to adjust the angle of a photovoltaic panel, outputting an execution instruction, setting different control mechanisms, and executing a balance optimization strategy when the power generation efficiency is high. And when the power generation efficiency is low, an intelligent switching strategy is executed, the productivity is preferentially improved, the crop illumination tolerance is considered, the angle is dynamically adjusted, collaborative optimization of agriculture and energy is realized, and the adaptability and the operation efficiency of the system are improved.

The invention relates to the technical field of intelligent illumination control, and discloses an intelligent enhancement method and system for the brightness of an LED light-emitting module, and the method comprises the steps: collecting environment illumination data and LED module operation state data, and carrying out the preprocessing; acquiring cultural relic material information, performing exhibit change detection, determining an illumination constraint threshold, calculating effective illumination and tracking accumulated exposure; determining an illumination safety boundary and dynamically modulating an LED spectrum; performing hierarchical coordination by adopting a three-layer game decision framework; a three-dimensional light field representation framework is constructed through audience behavior perception and visual attention prediction, and space illumination optimization is carried out; environment sudden changes and audience behaviors are detected, and quick response adjustment is executed; analyzing lighting space-time distribution characteristics, performing dynamic power distribution and generating an intelligent dimming curve; according to the invention, environmental perception, cultural relic protection constraint, light attenuation compensation, multi-module cooperation and intelligent decision can be comprehensively considered.

The invention discloses a high dynamic range image processing method, electronic equipment and a readable storage medium, and relates to the technical field of image.The method comprises the steps that when shooting is carried out in an HDR mode, the exposure amounts and the frame numbers corresponding to a short exposure frame, a middle exposure frame, a long exposure frame, a first middle frame and a second middle frame are determined, the exposure amount of the first intermediate frame is greater than the exposure amount of the short exposure frame and less than the exposure amount of the intermediate exposure frame, and the exposure amount of the second intermediate frame is greater than the exposure amount of the intermediate exposure frame and less than the exposure amount of the long exposure frame; and generating a high dynamic range image according to the short exposure frame, the middle exposure frame, the long exposure frame, the first middle frame and the second middle frame. Based on the scheme of the invention, a relatively large exposure span can be set, and the HDR image is generated by fusing the original images with more than three exposures, so that a relatively wide exposure dynamic range is realized, the HDR image with a relatively wide dynamic range is obtained, and a relatively good HDR imaging effect is provided for a user.

A method performed by a computing system according to an embodiment of the present disclosure comprises: a step of determining a masked region of a current layer on the basis of a non-overlapping region between at least one previous layer among a plurality of layers and the current layer; and a step of updating the image of the current layer in accordance with a user input that sets an exposure amount with respect to the masked region of the current layer, the plurality of layers being designed to cure the photocuring material in order for each layer unit for 3D printing.

The invention relates to the technical field of image processing, and particularly provides an image processing method and device, equipment, a storage medium and a program product. The method comprises the following steps: acquiring original RAW domain images of different exposures of a current scene in a night scene mode; carrying out RGB domain reconstruction on the original RAW domain image based on the plurality of RAW domain channels, and determining a normalized fusion weight map; the normalized fusion weight map comprises a first normalized fusion weight map of a normal exposure image and a second normalized fusion weight map of a short exposure image; based on the first normalized fusion weight map and the second normalized fusion weight map, sequentially performing pyramid fusion and RAW domain reconstruction on the normal exposure image and the short exposure image on each RAW domain channel to obtain a reconstructed image of each RAW domain channel; and recombining the reconstructed images of the plurality of RAW domain channels to obtain a target RAW domain image of the current scene. According to the invention, more night scene image information can be reserved, the calculation efficiency is high, the fusion effect is more natural, and the quality of night scene photographing is improved.

The invention relates to an image acquisition method and device, equipment, a storage medium and a program product. The method comprises the following steps: determining brightness characteristics of a preview image displayed in a viewing frame of image acquisition equipment; inputting the brightness characteristics into an exposure compensation model to obtain a target compensation proportion; performing exposure compensation on exposure parameters of the image acquisition equipment according to the target compensation proportion; and in response to an image acquisition instruction, performing image acquisition on the preview image according to the exposure parameter after exposure compensation to obtain a target image. By adopting the method, the accuracy of the exposure quantity adopted during image acquisition can be improved, so that the adaptability of the brightness of the acquired image and the ambient brightness is improved, and the image quality is further improved.

A wireless Internet of Things (IoT) device for detecting light exposure is provided. The IoT device includes a light sensor having an organic active layer that detects an intensity of light; an integrated circuit (IC), wherein the integrated circuit includes an oscillating circuit that is coupled to the light sensor to output a frequency value for the detected intensity of light; and at least one harvesting antenna that harvests an ambient radio frequency (RF).

The invention relates to a metal workpiece surface image acquisition method and device based on multiple exposure. The acquisition method comprises the following steps: determining total exposure, and determining single exposure time and corresponding weight according to the total exposure; acquiring a surface image of the metal workpiece at each exposure time, and adjusting the surface image by using the corresponding weight; and combining a plurality of adjusted images to obtain a metal workpiece surface reflection-removed image. According to the method, a strategy of multiple times of irregular exposure is adopted, multiple times of short-time exposure is used for replacing one time of long-time exposure, a strong single light reflection area is avoided, light reflection is reduced, meanwhile, more image details are reserved, and the final image quality is improved.

A method for avoiding strong light irradiation of a low-orbit spacecraft comprises the steps that 1, a low-orbit satellite starts ground strong light detection according to task requirements, and obtained detection telemetry information is sent to an on-satellite processing unit in real time; 2, the on-satellite processing unit judges and detects the effectiveness of the telemetry information; 3, the on-satellite processing unit interprets strong light energy and azimuth vector information, and obtains the current task state of the satellite, the solar wing attitude pointing information and the optical load pointing information at the same time; 4, evaluating the energy intensity of the strong light, judging the damage capability to the optical load and the solar wing, and carrying out corresponding operation; 5, after autonomous attitude avoidance and optical load pointing adjustment are completed, whether the strong light energy is eliminated or not continues to be judged; and after the strong light irradiation threat is relieved, the satellite-borne processing unit receives a ground remote control instruction and starts a new task. According to the method, the low-orbit satellite can avoid the threat of strong light, and the current situation that the current satellite has no prevention and resistance capability in orbit is changed.

The invention belongs to the technical field of three-dimensional point cloud acquisition, and particularly relates to a tunnel three-dimensional point cloud acquisition system and a structured light exposure adjusting system and method. The adjusting system comprises an image processing module and a controller. The image processing module obtains the proportion information of the number of pixel points in each interval in the structured light grayscale image; the interval is at least divided into two according to the gray level; the controller adjusts the exposure according to the proportion information until the quality of the obtained structured light image is qualified: if the proportion of the number of the pixel points in the low gray level interval is larger than a set threshold value and the proportion of the number of the pixel points in the high gray level interval is smaller than the set threshold value, the exposure is increased, and shooting is carried out again; and if the proportion of the number of the pixel points in the high gray level interval is larger than a set threshold value and the proportion of the number of the pixel points in the low gray level interval is smaller than the set threshold value, the exposure is reduced, and shooting is carried out again. According to the invention, the problem that the image quality and the three-dimensional point cloud generation quality are influenced by insufficient exposure or overexposure of the projection structured light is solved.

The invention discloses a spectrum control axis adjusting method and system for assisting myopia prevention and control, and relates to the field of biomedical engineering.The method comprises the steps that a user uploads personal information, meanwhile, current illumination data and eyeball movement data of the user are monitored and collected, and the personal information, the current illumination data and the eyeball movement data of the user are preprocessed; establishing a user spectrum model based on the preprocessed personal information and the current illumination data of the user, predicting the optimal spectrum combination of the user, adjusting the specific gravity combination of each wave band in the LED light source according to the prediction result, monitoring the actual spectrum entering the eyes in real time, and comparing the actual spectrum with the optimal spectrum combination of the user, adjusting the spectrum output of the LED light source according to the difference; by establishing the user spectrum model, the spectrum combination can be dynamically adjusted according to the real-time environment condition of the user, and it is ensured that the light condition most suitable for the user is provided. And the visual comfort of the user and the myopia prevention and control effect are obviously improved.

To prepare a pixel define layer capable of improving the hue, impact resistance, reliability, and lifespan of an organic light-emitting display device.SOLUTION: A method for preparing a pixel defining layer comprises the steps for application and coating of a photosensitive composition, which is then subjected to pre-baking, light exposure, development, and post-baking. After the post-baking, the coating film has an optical density of 0.80 to 1.5 / μm, a plastic hardness of 350 to 470 N / mm2, and a modulus of 5,200 to 6,800 Mpa.SELECTED DRAWING: Figure 1

The invention discloses a self-adaptive illumination adjustment image measurement method, and belongs to the technical field of image measurement. According to the method, adaptive adjustment is carried out on hardware and a related algorithm simultaneously according to environment illumination changes, the exposure amount of an image is changed by adjusting the exposure time of a camera on the hardware, and exposure adjustment is used for ensuring that the gray level distribution of an image sequence obtained by the camera in an interested area is consistent with that of a reference image as much as possible in the measurement process. Exposure adjustment of a camera is global adjustment for an image, and overexposure or underexposure pixel points still possibly appear in a local area of the image. Therefore, an illumination robust digital image correlation algorithm is provided, the gray level distribution of the sub-regions is adjusted in real time during correlation calculation, the registration precision of the sub-regions is improved by removing saturated pixels in the sub-regions, the sizes of the sub-regions are adaptively adjusted according to illumination changes, it is ensured that the sub-regions contain enough and rich gray level information, and the registration precision of the sub-regions is improved. And the robustness of a related algorithm in suppressing illumination interference is improved.

The embodiment of the invention provides an automatic exposure control method and device and electronic equipment, and relates to the technical field of image processing. The method comprises the steps that when it is detected that the shooting environment of a first camera changes, the exposure parameter of the first camera is adjusted according to the first exposure adjustment amplitude, and the exposure parameter of a second camera is adjusted according to the second exposure adjustment amplitude; the second exposure adjustment amplitude is greater than the first exposure adjustment amplitude; when the brightness of a second image acquired by the second camera is in a second target brightness stable interval, determining a first exposure amount required by the first camera according to the brightness of the second image at the current moment and the exposure amount of the second camera; and according to the first exposure quantity, adjusting an exposure parameter of the first camera, so that the brightness of a first image acquired by the first camera is in a first target brightness stable interval. According to the technical scheme provided by the embodiment of the invention, the convergence speed of the exposure parameter of the first camera can be improved.

The invention provides an image automatic exposure method and device, a terminal and a storage medium. The image automatic exposure method comprises the following steps: acquiring a first image, a second image and exposure parameters of the first image and the second image; respectively carrying out a preset number of Gamma transformations on the first image and the second image to obtain a first type of images and a second type of images; determining brightness information entropies of the first type of images and the second type of images with the same transformation parameter and a first transformation parameter corresponding to the maximum brightness information entropy; determining a first update exposure based on the exposure parameter and the first transformation parameter of the first image, and determining a second update exposure based on the exposure parameter and the first transformation parameter of the second image; a joint exposure amount is determined based on the first updated exposure amount, the second updated exposure amount, a first brightness mean value of the first image, and a second brightness mean value of the second image. The method can improve the feature richness of input images of algorithms such as feature matching and depth estimation, and further improves the quality of the algorithms.

To provide a distance measuring device, a distance measuring system, a distance correction method, and a distance measuring program that can correct a distance error occurring between pixels included in a light receiving sensor due to the influence of a different multipath for every pixel.SOLUTION: A distance measuring device comprises: an irradiation unit that irradiates an object to be measured with measuring light; a light receiving sensor that receives reflected light from the object to be measured, and detects an amount of exposure based on the reflected light; a storage unit that stores correction information indicating a correction formula set including a plurality of correction formulas associated respectively with a plurality of pixels and application ranges of the correction formulas; and a distance calculation unit that calculates a measured distance to the object to be measured on the basis of the amount of exposure. The distance calculation unit corrects the measured distance for every pixel on the basis of the correction information stored in the storage unit, by using a correction formula corresponding to an application distance range including the measured distance, of the plurality of correction formulas included in the correction formula set, and thereby executes distance correction calculation of calculating a post-correction measured distance for every pixel.SELECTED DRAWING: Figure 1

The present invention provides a belt fault detection device, system, and fault handling method, belonging to the field of laser detection technology. The device comprises a sensor module and a fault detection module, wherein the fault detection module comprises a dustproof housing, a camera, and a laser emitter, wherein the camera and laser emitter are mounted on the bottom plate of the dustproof housing, the laser emitter is used to emit laser light onto the belt, the camera is used to capture the laser light irradiated on the belt, and the sensor module is used to detect the signal. By using an industrial camera and a laser emitter, the present invention improves detection accuracy compared to manual detection, avoids false alarms, and increases image exposure time and exposure. The system of the present invention can effectively link detection results with belt position, displaying the existing faults and current fault locations of the entire conveyor belt in real time, historically recording and linking belt replacement information, and displaying faults and location information that occurred during the current belt life cycle, providing a basis for the owner to conduct maintenance.

The application provides an outdoor tracking-based photobiomodulation method and device. The method comprises: determining effective outdoor time of a user according to collected light exposure data of the user; determining a light compensation level of the user according to the effective outdoor time and a target effective outdoor time; determining photobiomodulation parameters and simulated light compensation parameters according to the light compensation level; when the user is in a specified light compensation scene, outputting artificial light simulating outdoor natural light characteristics according to the simulated light compensation parameters; and performing photobiomodulation on the user according to the photobiomodulation parameters, preset wavelength red light and near-infrared light. The application can achieve the purpose of a comprehensive system that comprehensively simulates outdoor light environment characteristics and integrates photobiomodulation, and provides a more complete solution for myopia prevention and control.

This invention provides an intelligent wake-up method, an intelligent control system, an electronic device, and a storage medium. The intelligent control system includes at least a control module and an LED light panel. The LED light panel is equipped with an LED light source module. When the wake-up conditions are met, the control module controls the color temperature of the LED light source module to be equal to a color temperature threshold during the wake-up period. The color temperature threshold is configured based on color temperature-emotion evaluation data. During the wake-up period, the control module controls the output power of the LED light source module to change linearly with time, causing the illuminance of the LED light panel to change from dark to bright, simulating the sunrise process, thereby waking up the user. The difference between the integral of the LED light panel's illuminance over time and the eye exposure threshold is within a preset range. The eye exposure threshold is configured using eye exposure data, arousal evaluation data, and sleep quality data.

The invention provides an illumination regulation and control method for female induction of industrial hemp seeds, and relates to the technical field of illumination regulation and control, and the method comprises the following steps: collecting historical data of female induction of the hemp seeds, dividing light-suitable germination, induction light modulation and growth light change stages, and obtaining illumination time. The method comprises the following steps: respectively adjusting illumination strategies of each stage according to seed characteristic quality, growth state, cultivation mode and pest and disease damage, integrating into a female induction illumination strategy, analyzing secondary metabolites and enzyme activity by using a firework algorithm to obtain sex differentiation state data, and adjusting according to the data to obtain an illumination regulation method. Through staged and multi-factor accurate illumination regulation and dynamic adjustment, growth and development of female cannabis sativa are facilitated, so that the success rate of female induction is increased, the proportion of female plants is increased, sex differentiation state data are analyzed by using a firework algorithm, and the sex differentiation rate is improved. The illumination regulation and control can be adjusted in time according to the actual growth condition of the hemp plants, and the accuracy and effectiveness of the illumination regulation and control are improved.

The invention relates to an image processing method and device, electronic equipment and a medium. The image processing method comprises: determining an exposure group when an image sensor performs image acquisition, the image sensor comprising a plurality of pixel unit groups, each pixel unit group comprising a plurality of pixel units, the exposure group comprising a plurality of exposures, the plurality of exposures corresponding to each pixel unit in each pixel unit group, and the plurality of exposures corresponding to each pixel unit in each pixel unit group; at least part of the exposures are different; performing image acquisition according to the exposure group to obtain a first image; extracting the first image to obtain a second image corresponding to each exposure; and fusing to generate a third image according to the second images. The second images with different exposure can be acquired at the same time, and the acquisition time difference of the second images is reduced, so that the blurring degree of the images is reduced.

The utility model belongs to the technical field of agricultural planting, and particularly relates to an agricultural planting circulating type agricultural planting frame which comprises a shell and two planting frame bodies, an adjusting assembly is arranged in the shell, ejection assemblies are arranged in the two planting frame bodies, and through holes are formed in the ends, away from each other, of the two planting frame bodies; the adjusting assembly comprises a servo motor installed at the bottom end of the shell, an output shaft of the servo motor is provided with a driving bevel gear, two guide holes are formed in the bottom wall of an inner cavity of the shell, and guide blocks are slidably connected into the two guide holes. Through the arrangement of the adjusting assembly, the two planting frame bodies can be adjusted out of the outer side of the shell, so that illumination, watering and the like are facilitated, the planting frame bodies are contained in the shell, shading is facilitated, and the planting flexibility is improved; and through the arrangement of the ejection assembly, the plants planted in the planting frame body can be ejected out, so that the purpose of facilitating transplanting is achieved, and the planting flexibility is improved.

The invention relates to the technical field of defect detection, and discloses an automatic exposure method and system for an X-ray flaw detector, and the method comprises the steps: firstly obtaining a three-dimensional model of a workpiece, and calculating the equivalent thickness of the workpiece, the source image distance, the normal included angle of the inner wall, the directional attenuation of an X-ray source and other characteristic functions along with the change of a circumferential angle in combination with preset X-ray projection geometry; then obtaining a linear attenuation coefficient of the material under effective energy through energy calibration, and setting a target comparison noise ratio and a defect equivalent thickness at a reference angle to obtain a reference exposure; generating full circumferential target exposure distribution according to the physical function and the material parameters; finally, dispersing exposure distribution into a sector sequence, carrying out exposure measurement under the constraint of equipment and total exposure, calculating an actual contrast noise ratio of each sector, and comparing the actual contrast noise ratio with a threshold value, thereby quantitatively judging whether the workpiece has defects or not, and realizing high-precision and uniform-sensitivity X-ray defect detection on the circumferential weld.

The present invention employs a resist composition generating an acid upon light exposure, with the solubility of the resist composition in a developing solution being changed by an action of an acid, the resist composition comprising: a base material component (A), wherein the solubility of the base material component (A) in a developing solution is changed by an action of an acid; and a compound (B0) represented by general formula (b0). In general formula (b0), R01 and R02 are each independently a hydrocarbon group which may have a substituent. R01 and R02 may bind to each other to form a ring structure. Mm+ is an m-valent cation. The valence m is an integer of 1 or more.

The present invention belongs to the field of fish farming technology, and specifically relates to the application of LED lighting in turtle sun shed farming. The present invention utilizes LED lighting to provide supplemental lighting during the sun shed farming process, thereby increasing the duration of light exposure to the turtles, increasing the dissolved oxygen content in the farming water, improving water quality, and enhancing farming results. This, in turn, increases the turtles' weight gain rate and reduces their mortality rate.

The invention belongs to the technical field of unmanned aerial vehicle aerial photography, and particularly discloses an unmanned aerial vehicle aerial photography parameter dynamic optimization method based on an AI model, and the method comprises the following steps: obtaining a current waypoint coordinate and a photographing point coordinate of an unmanned aerial vehicle, and calculating the actual distances between the two, including a linear distance, a horizontal distance and a vertical distance; an input feature is constructed, the actual distance is combined with an environment feature and a target feature, the environment feature comprises illumination intensity and a weather type, and the target feature comprises a shooting target type and a target size ratio; processing the input features by using a pre-trained AI model, and outputting optimal zoom multiple, pan-tilt pitch angle and exposure parameters; and dynamically adjusting the aerial photography parameters of the unmanned aerial vehicle according to the optimal parameters. The unmanned aerial vehicle aerial image quality can be improved.

The objective is to provide a system that can identify the parameters necessary for development calculations, even when dealing with photosensitive resin compositions that are scattering materials. [Solution] A parameter search device comprising: an acquisition unit that acquires at least one measured value of information relating to the minimum exposure amount or curing rate at which the film thickness does not decrease by development, and information relating to the maximum exposure amount or curing rate at which the film is substantially removed by development, when a resin layer is exposed with stepwise exposure amounts or cured to a predetermined degree by said exposure and then developed under predetermined development conditions; and a search unit that uses the measured value to search for parameters relating to coefficients or constants of a development speed calculation model by inverse analysis.