43 results about "Darkness" patented technology

The invention discloses an AI visual defect identification and detection method integrated with a light supplementing module, and relates to the technical field of computer vision, and the method comprises the following steps: S1, data acquisition: carrying out multi-angle shooting on a product at a fixed station of a production line by using an industrial camera integrated with the light supplementing module, the light supplementing module automatically adjusts the illumination intensity and angle according to product surface characteristics and ambient light conditions; s2, image preprocessing; s3, feature extraction; s4, defect classification / positioning; and S5, outputting a result. According to the AI visual defect identification and detection method integrated with the light supplementing module, the light supplementing module is integrated, and the programmable LED light source array is adopted, so that the change of the illumination intensity of a production line can be sensed in real time, and the illumination intensity and the angle can be automatically adjusted, and therefore, the problem that the local part of an image is too bright or too dark due to ambient light fluctuation can be effectively avoided; especially for highly reflective materials such as metal and coated surfaces, the light supplementing module can select the angle combination with the weakest reflected light for light supplementing.

The invention provides a light environment adaptive HUD adjusting method based on a man-machine flight mission, and belongs to the technical field of flight display control. Light intensity, color temperature and reflectivity data outside a cabin are collected, and eye movement signals, electroencephalogram signals and heart rate variability signals of a pilot are synchronously obtained; after registration, constructing a synchronous time sequence data set containing the light environment and the physiological state, and based on external light parameters, utilizing a gradient lifting decision tree model to identify the current light environment and obtaining a brightness reference interval; according to the invention, the HUD brightness and contrast are dynamically calculated and compensated in advance through real-time acquisition of external light parameters and a classification result of a light environment recognition model, so that the HUD can maintain clear symbols and stable contrast under various light conditions such as cloud crossing, backlight, strong reflection and night voyage; the problem of over-brightness or over-darkness caused by adjustment lag of a traditional fixed brightness curve is avoided, and information readability in a flight task is improved.

To provide a projection device for a vehicle capable of displaying an image easily visible for a viewer on a road surface by using darkness of a shadow even under a bright environment in the daytime.SOLUTION: The device includes a projection part 2 for irradiating a road surface R with first irradiation light L1 for displaying a first image M1, a detection part 2 for detecting brightness of a surrounding environment of a vehicle C, and a control part 4 for controlling the projection part 2. The control unit 4 performs a brightness determination process of determining whether or not the brightness detected by the detection unit 2 is equal to or higher than a predetermined brightness, and an image position determination process of determining whether or not at least a part of the first image M1 displayed on the road surface R by the projection unit 2 is located outside the shadow region RF. And image adjustment processing for adjusting the first emission light M1 so that the whole of the first image L1 is positioned inside the shadow area RF when it is determined by the image position determination processing that the first emission light LA is positioned outside the shadow area RF.SELECTED DRAWING: Figure 1

This invention discloses a method and system for identifying electrical meter readings. The method includes: irradiating the electrical meter panel with preset light using a transmission and acquisition module to obtain reflected light from the panel, and acquiring this reflected light; receiving the reflected light from the panel using an image generation module to generate a brightness and darkness map of the electrical meter, and obtaining a pointer reflection pattern and a starting point reflection pattern based on the brightness and darkness map; constructing a first baseline and a second baseline using a reading calculation module based on the pointer reflection pattern and the starting point reflection pattern; identifying angles based on OpenCV, the first baseline, and the second baseline; and calculating the radian based on the angle and the length of the first baseline to obtain the electrical meter reading. This method can accurately identify the electrical meter reading based on the brightness and darkness map, without relying on panel readings, and can accurately obtain the electrical meter reading.

1. The name of the design product: helmet night vision device. 2. The use of the design product: for night work in low light or no light environment, based on the high sensitivity imaging capability of short wave infrared band, the user can realize the detection, identification and tracking of target in darkness, smoke or complex background, thereby significantly improving the situation awareness and operation safety; typical applications include military operations, border patrol, law enforcement monitoring, search and rescue tasks, night navigation and outdoor tactical training scenes. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application relates to the technical field of lighting devices, and discloses a building light guide lighting system capable of self-adapting to luminance, which comprises a mounting base, an illumination intensity sensor, a light guide optical fiber, a diffusion cover, a light collecting cover fixedly arranged at the bottom end of the mounting base, a supporting cylinder arranged at the top end of the mounting base, and a light guide cylinder one slidingly arranged in the supporting cylinder; when the illumination intensity sensor detects that the light intensity at the diffusion cover is lower than a preset threshold value, a control module adjusts the working current of LED lamp beads in a light supplementing assembly, luminance is stepwise improved, and indoor light intensity is ensured to be stably within a required range; when it is detected that the light intensity is higher than an upper limit of the threshold value, a motor-driven push rod drives a light guide cylinder two to move downwards, photovoltaic panels in the supporting cylinder are gradually exposed to absorb part of light, and the amount of light entering the diffusion cover is reduced, so that the technical problems that the illumination intensity of a traditional light guide system cannot be automatically adapted to changes in external light and over-brightness or over-darkness is prone to occurring are effectively solved, and the stability and comfort of indoor lighting are ensured.

The invention discloses a temperature and light regulation and control method for promoting rapid growth of haliotis discus hannai in a recirculating aquaculture mode, and belongs to the technical field of factory recirculating aquaculture of haliotis discus hannai. In the breeding stage of the haliotis discus hannai, growth and development of the haliotis discus hannai are promoted by regulating and controlling the breeding light environment; the illumination period in the breeding period is 4 h illumination and 20 h darkness, and 24 h serves as a cycle period; the illumination intensity is maintained in a range of 6.00 + / -1.5 [mu] mol / m < 2 > / s; an illumination spectrum is a full spectrum with a main wave peak of 460 nm; the water temperature is maintained at 18-20 DEG C in the breeding period. According to the method, the light environment requirement in the breeding period of the haliotis discus hannai is met by artificially regulating and controlling the breeding environment illumination, the growth and development of the haliotis discus hannai are accelerated, and the breeding period is effectively shortened.

The application belongs to the field of display screen, and provides a light and dark adjusting method and system for mobile phone display screen, which comprises the following steps: pre-processing input LDR video frames by a fast guided filter to remove noise and artifacts generated by compression or sensors; expanding the brightness range of the input LDR video frames based on a global operator of mid-gray value mapping; while expanding the brightness range of the LDR video frames, iteratively removing false contours in the smooth transition area in the LDR video frames by a minimization algorithm based on iterative projection to a convex set; analyzing the LDR video frames without artifacts and their brightness channels to detect highlights and generate an expansion map, analyzing the expansion map and marking the highlight area, and fusing original brightness details by using a guided filter; and re-distributing the brightness of the LDR video frames after brightness expansion to the RGB color channels by using a Mantiuk formula; the application can realize good display effect when converting LDR to HDR.

A permanently self-luminous sighting element for marking important points in bright light, poor lighting conditions and in darkness is disclosed. He sighting element includes a cylindrical housing with an axis, a transparent end wall arranged normally thereto as viewing surface, a rear wall arranged opposite thereto, and a liner, which together form an enclosed, gas-impermeable interior space. A cylindrical glass capsule embodied as self-luminous gaseous tritium light source (GTLS) is introduced in the interior space coaxially to the axis, which glass capsule comprises a glass liner surface and a front surface facing the end wall. A pigment layer suffused with persistently phosphorescent pigments and having an end surface facing the end wall is arranged between the glass liner surface and the liner, with the pigment layer and the GTLS belonging to the same colour tone.

1. The name of the design product: bottle for cosmetics. 2. The use of the design product: the design product is mainly used for storing and packaging liquid cosmetics. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 front view. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: the lightness and darkness of the color shown on the surface of the product in each view are used to represent the three-dimensional surface shape, not the pattern of the design.

This invention discloses a method for regulating the light environment to promote gonadal development in female Russian sturgeon, belonging to the field of aquaculture technology. By regulating light intensity and photoperiod during stages II and III of ovarian development in female Russian sturgeon, the gonadal development rate is accelerated; the daytime light intensity is 7.99±4.44 W / m². 2 / s, nighttime light intensity 4.42±0.95W / m 2 The light cycle is 18-24 hours of light followed by 0-6 hours of darkness, with artificial lighting for 4-6.3 hours, and a 24-hour cycle. By adjusting the intensity of natural daytime light and supplemental LED lighting at night, the light intensity and photocycle are modified to meet the light environment requirements of flow-through cultured female Russian sturgeon during gonadal development. This promotes the speed of gonadal development, increases the average egg diameter, reduces individual differences in gonadal development among female Russian sturgeon, and ultimately improves the productivity and economic benefits of aquaculture enterprises.

The application discloses a brightness compensation method, a display panel and a storage medium. The method comprises the following steps: converting a first picture driving mode into a second picture driving mode through a center control board, wherein color pixels on a frame output by the first picture driving mode have the same polarity, and the second picture driving mode outputs frames, and polarities of adjacent color pixels on the left and the right of the frames are different; and compensating two brightnesses corresponding to two color pixels with the same color and different polarities on the frames output based on the second picture driving mode to compensate the brightness of a display picture. The picture driving mode with the color pixels on the output frames having the same polarity is converted into the picture driving mode with the color pixels on the output frames being different polarities on the left and the right, and the brightness and darkness of the color pixels with different polarities and the same color on the same line are complementary and offset, so that the display picture is prevented from having the difference between the brightness and the darkness caused by the single polarity.

The invention relates to a multilayer optical disk with a plurality of polygonal meshes, comprising a substrate, a plurality of polygonal meshes, a multilayer film, and two dirt- and water-protection layers. The polygonal meshes are formed on one side of the substrate by alternating stacking of a plurality of materials with a high refractive index and a plurality of materials with a low refractive index. The multilayer film is formed on the side of the substrate facing away from the polygonal meshes by alternating stacking of a plurality of materials with a high refractive index and a plurality of materials with a low refractive index. The two dirt- and water-protection layers are applied to both sides of the substrate to cover the polygonal meshes and the multilayer film.This allows the invention to effectively resist glare and block scattered light, and it exhibits a light compensation effect, thus reducing the time required for the eyes to adapt to brightness and darkness. Furthermore, the invention can more effectively block ultraviolet, violet, blue, and near-infrared light while maintaining high transmittance of visible light.

The invention relates to a large-size pathological section panorama generation method based on repetition degree positioning. The method comprises the following steps: firstly, acquiring a dyed tissue slice image, and preprocessing the dyed tissue slice image; then, carrying out illumination correction, contrast enhancement and denoising processing on the preprocessed dyed tissue slice image; then, determining an overlapping region sub-image based on the dyed tissue slice image, and determining a feature point transformation relation based on the overlapping region sub-image; and finally, carrying out in-line splicing and inter-line splicing on the dyed tissue section image based on the feature point transformation relation to obtain a pathological section panorama. That is to say, through the preprocessing processes of image quality compression, edge detection and the like, blank images are effectively removed, and illumination correction, contrast enhancement and denoising processing are performed, so that the brightness of the generated panorama is uniform, accurate positioning is performed based on repetition, and the splicing accuracy and efficiency are improved.

The automatic light changing system comprises a filter with a liquid crystal box assembly (LCD) and a darkness control system, the control system comprising: a micro control unit (MCU); a detection unit, a parameter setting unit and a power supply control circuit electrically connected therewith, the detection unit detecting light signals under arc striking and arc extinguishing operations and converting the light signals into electrical signals and sending the electrical signals to the MCU; the setting unit sending working parameters to the MCU; the MCU generating an output control signal based on the electrical signals and the working parameters and sending the output control signal to the control circuit; and a driving circuit electrically connected to the control circuit downstream of the control circuit, the control circuit providing a control voltage required for driving the LCD to the driving circuit based on the control signal; the driving circuit driving the LCD to change between bright and dark states, within a time delay range after the arc extinguishing operation, a continuous darkness curve of the LCD is distributed in a time sequence as follows: a first stage with constant darkness; a second stage with decreasing darkness and rate of change; and a third stage with linearly distributed darkness. The application also relates to a welding mask comprising the automatic light changing system and a method for controlling darkness of the welding mask.

The application relates to a display screen light and dark line correction method and device, electronic equipment and a storage medium. The method performs self-calibration between a lamp plate and a camera on an external parameter conversion matrix according to first positions and second positions of a plurality of first lamp beads on a single lamp plate. The position of a second lamp bead at the edge of two adjacent lamp plates is obtained according to the self-calibrated external parameter conversion matrix. Since the position information of the plurality of lamp beads on the single lamp plate is used to obtain the external parameter conversion matrix, the denoising effect can be achieved, and the position error of the second lamp bead is reduced. The joint seam spacing at the edge of the two adjacent lamp plates is obtained according to the position of the second lamp bead, and the detection error of the joint seam spacing is reduced. The display screen is corrected according to the joint seam spacing, and the accuracy of the light and dark line correction is improved.

The invention belongs to the technical field of intelligent glasses, and particularly relates to portable intelligent glasses which comprise a glasses frame, glasses grooves are symmetrically formed in the glasses frame, protective covers are fixedly mounted in the glasses grooves, and high-definition lenses, display lenses and holographic AR information display lenses are fixedly mounted in the protective covers; the camera shooting groove is formed in the front side of the glasses frame, a high-definition CMOS camera is fixedly installed in the camera shooting groove, light supplementing grooves are formed in the positions, located on the two sides of the camera shooting groove, of the front side of the glasses frame, and light supplementing devices are fixedly installed in the light supplementing grooves; when the glasses are worn by a user, the user can see the glasses in environments with limited naked eyes such as complete darkness, smog and haze, and the highest brightness does not need to be maintained all the time when light is sufficient; under dark light, the brightness is actively reduced, a clear display effect can be obtained, stimulation and fatigue caused by an over-bright or over-dark screen to eyes are avoided, the visual field of a user is not interfered, people can see the display at night, and the night vision full-color imaging effect is achieved.

The invention discloses a backlight adjustment method for intelligently switching a dynamic mode and a static mode, and the method comprises the steps: calculating the average brightness-to-darkness ratio of an image in real time, and monitoring the change state of the average brightness-to-darkness ratio: when the average brightness-to-darkness ratio continuously changes, adopting a dynamic backlight mode, and outputting a backlight value according to a preset mapping relation so as to ensure that the energy efficiency is compliant; and when the average brightness ratio is stable and exceeds the set time, automatically switching to a static backlight mode, allowing a user to manually adjust the brightness, and recalculating the backlight parameters by the system according to the brightness. When the two modes are switched, the backlight brightness gradually changes to a target value in a smooth transition mode. The problems that in a traditional dynamic backlight technology, pictures flicker, and manual dimming cannot be achieved are effectively solved, and on the premise that the energy efficiency standard is not sacrificed, the visual comfort degree of display equipment and the user control flexibility are remarkably improved.

The embodiment of the invention provides a debugging method for ECU equipment with a camera. The debugging method comprises the steps that the ECU equipment with the camera is powered on to enable the ECU equipment to enter an initial mode; continuously controlling the light incoming state of the lens in each unit time length in the first preset time length by adopting a mode of selectively shielding the lens of the camera, so that the bright and dark states of a photosensitive image obtained by a photosensitive chip of the camera in the first preset time length are synchronously changed; generating a binary first actual control code based on the brightness and darkness state change of the photosensitive image within the first predetermined time length, wherein each bit sequence of the first actual control code is in one-to-one correspondence with the brightness and darkness state of the photosensitive image of the photosensitive chip within each unit time length within the first predetermined time length; comparing the first actual control code with a preset reference opening code, and if the first actual control code and the preset reference opening code are the same, switching from an initial mode to a debugging mode; and performing data interaction with the ECU equipment in the debugging mode to debug the ECU equipment. According to the embodiment, the debugging mode can be started simply at low cost.

This application relates to the fields of computer and mechanical control technology, and discloses an image processing method, apparatus, readable medium, and device. The method includes: performing a negative-like processing on an image to be processed to obtain a processed image; fusing the image to be processed and the processed image to obtain a target processed image; and controlling a laser to perform laser processing according to the target processed image. The technical solution of this application's embodiments, by performing a negative-like processing on the image to be processed, increases the brightness of areas in the processed image that correspond to dark areas in the same location as those in the image to be processed. This allows for better neutralization of dark areas during subsequent image fusion between the processed and the image to be processed, preventing large areas of darkness in the generated target processed image. This effectively avoids problems such as material scorching during laser processing, thereby improving the laser processing effect.

To obtain a single-layer two-dimensional visual code in which a special manufacturing technology is unnecessary, and a plurality of data are encoded.SOLUTION: A two-dimensional visual code 121 comprises multi-value modules 131, 132 in which light and darkness identified according to predetermined different imaging conditions vary. Then, the multi-value modules 131, 132 are selected from the plurality of modules, so that a code word identified from the two-dimensional visual code is decoded to first data, when it is determined that the multi-value modules 131, 132 are light modules, and the code word identified from the two-dimensional visual code is decoded to second data different from the first data, when it is determined that the multi-value modules 131, 132 are darkness modules.SELECTED DRAWING: Figure 5

The present application relates to the technical field of plant growth and development regulation, and relates to a cultivation method for normal flowering and fruiting of winter (semi-winter) plants without low-temperature vernalization. The present application provides a cultivation method for normal flowering and fruiting of winter (semi-winter) plants without low-temperature vernalization, comprising the following steps: (1) sterilization and germination: after sterilization treatment, the plant seeds are germinated and cultivated in darkness to obtain plant seedlings; (2) vernalization-free cultivation: the plant seedlings are irradiated with the following light conditions in the vernalization-free cultivation, the light conditions comprise two or more of 400-500 nm, 600-700 nm and 720-750 nm, the light period adopts 16-22 h light / 2-8 h darkness, the light period temperature ranges from 20-28 DEG C, and the dark period temperature ranges from 18-26 DEG C. The present application actively replaces the sustained low temperature in the flowering induction process of winter plants by using light, a non-temperature environmental factor, thereby realizing exemption from the low-temperature vernalization stage.

The present invention relates to a non-therapeutic skin treatment method comprising: an activation step that alternates steps involving the application of light, with a frequency greater than 20Hz, filters of between 530 and 690nm and intensities of between 1 and 10J / cm2, and intervals of darkness in which no amount of light is applied; and a stimulation step in which an IPL light is applied with a wavelength in the ranges 420-480nm, 530-590nm and 800-950nm, with frequencies of between 1 and 10Hz and intensities of between 1 and 10J / cm2. The present invention also relates to a skin treatment system comprising a high-intensity pulsed light (IPL) emitter with filters configured to deliver specific wavelength cuts for facial and body treatments and configured to carry out the steps of the method of the invention, and one or more compounds for treating the skin with bioluminescent active ingredients.

The invention discloses an LED lamp arrangement method of a side-entry backlight module and the backlight module thereof, and the method comprises the following steps: (1) measuring to obtain the width L of a visible area of the backlight module, and determining the number N of LED lamps needing to be arranged; (2) calculating the lamp spacing P according to a formula P = L / (N + 0.25), and calculating according to P = L / 2 when N is equal to 1; and (3) arranging the LED lamps, centering the whole group of LED lamps in an area below the visible area, and finishing arrangement according to the arrangement rule of even-number lamps or odd-number lamps. By means of the method, the design efficiency can be greatly improved, the light-emitting angle dark area of the LED lamp is uniform, lattice points of the light guide plate can be conveniently and easily arranged and debugged, and therefore the visual effect that the brightness and the darkness of a product are not uniform is improved.

The present disclosure relates to a system (200) and a method (600) for binarizing one or more images using one or more vision transformers (206a, 206b). The system (200) includes an encoder (204) configured to receive multimodal inputs including an original image and a darkness image corresponding to the original image from an input module (202), discretely extract, by vision transformers (206a, 206b), modality-specific features from each of the original image and the darkness image, and aggregate augmenting features among the modality-specific features by determining a weighted sum of the modality-specific features of each of the original image and the darkness image. The system (200) includes a decoder (208) operatively connected to the encoder (204), and configured to reconstruct a binarized output image corresponding to the original image by refining the one or more aggregated features.

The invention relates to the technical field of projection detection, in particular to a steering projection lamp detection method and system, and the method comprises the steps: 1, collecting projection images: collecting the projection images through a camera, carrying out the binarization of the images collected by the camera, obtaining a gray image, and carrying out the detection of the gray image; carrying out contour extraction and corner detection on the image; 2, setting a section line along the X-axis direction, obtaining an intersection point between the section line and the projection pattern, and carrying out a brightness gradient test; connecting two front and rear points of the projection pattern to form a straight line L, and calculating the distance between the other points and the straight line L to carry out consistency test; and reading gray values of edge angular points of the projection pattern and gray values of area point positions among the plurality of dovetail-shaped patterns, and carrying out darkness test. Through different test items, the optical performance of the steering projection lamp is effectively controlled, the test method is simple, and comprehensive quality evaluation can be quickly made on the optical performance of the projection lamp.

This invention discloses a frequency-domain illumination prior-driven unsupervised low-light video enhancement method, system, and storage medium for monitoring tunnel boring machine (TBM) slag outlets. The method utilizes a noise suppression module to achieve composite noise suppression and basic restoration of the low-light image. A frequency-domain illumination prior estimation module performs two-dimensional Haar wavelet decomposition on the restored image, combining channel-spatial attention-weighted high and low frequency sub-bands and fusing them to generate frequency-domain illumination prior features. The reflection component is accurately reconstructed using a cross-attention transformer unit in the reflection component reconstruction module. A global exponential enhancement factor is generated using an illumination enhancement coefficient module to obtain the enhanced image. Unsupervised end-to-end training of the network is achieved through gamma transform branching and multi-dimensional loss constraints. This method effectively alleviates the problems of overall darkness, detail obscuration, and severe noise in TBM slag outlet monitoring images without increasing the burden of continuous on-site lighting, resulting in enhanced videos with balanced brightness, clear details, and controlled overexposure.

The utility model provides an image acquisition and heat dissipation device. The image acquisition and heat dissipation device comprises a mounting seat, an image acquisition assembly and a light supplementing assembly which are arranged on the mounting seat, and a heat dissipation assembly connected with the light supplementing assembly, the image acquisition assembly comprises a lens and an acquisition module, the lens is located on the front side of the mounting base, and the acquisition module is located on the rear side of the mounting base; the light supplementing assembly comprises a light source, a main body of the light source is located on the front side of the mounting base, and a base of the light source extends to the rear side of the mounting base from the second mounting opening. The heat dissipation assembly comprises a radiator and a heat dissipation fan, the radiator is connected with the installation base and makes contact with a base of the light source, and the heat dissipation fan is attached to the radiator. According to the utility model, the reliable and stable operation of the image acquisition assembly in a dark environment for a long time can be ensured, so that the required image can be accurately acquired, the condition of a construction site and the like can be evaluated in time, or the image can be used as a basis for big data analysis and the like, and the accuracy, timeliness and the like of sensing the condition of the site in the dark environment are improved.

The invention relates to the technical field of plant growth and development regulation and control, in particular to a cultivation method for normal flowering and fruiting of plants without low-temperature vernalization. The invention provides a cultivation method for normal flowering and fruiting of winter (semi-winter) plants without low-temperature vernalization, which comprises the following steps: (1) disinfecting and germinating: disinfecting plant seeds, and germinating and cultivating in the dark to obtain plant seedlings; (2) non-vernalization cultivation: in the non-vernalization cultivation, the plant seedlings are irradiated under the following illumination conditions: two or more of 400-500 nm, 600-700 nm and 720-750 nm, the light period adopts 16-22 h illumination / 2-8 h darkness, and the temperature range of the light period is 20-28 DEG C; the temperature range of the dark period is 18-26 DEG C. According to the method, illumination which is a non-temperature environmental factor is used for actively replacing continuous low temperature in the winter plant flowering induction process, so that exemption of the low-temperature vernalization stage is realized.