185 results about "Color saturation" patented technology

The invention also provides a glare suppression low-illumination image enhancement method based on global mapping and local tuning, and the method comprises the following steps: S1, carrying out the preliminary enhancement of an original image, and adjusting the color saturation and contrast of the image; s2, carrying out image region gradient detection on the original image to calculate a region with relatively violent brightness change, and adaptively carrying out further enhancement on the image through a corresponding algorithm; and S3, superposing the images before and after enhancement through a linear expansion algorithm and a pixel-level weight adaptive algorithm so as to suppress glare in the images, and adaptively adjusting the contrast and color in the images after glare suppression by adopting the algorithm so as to enable the images to accord with the visual habits of human eyes. The technical scheme has the advantages of being fast, good in robustness and suitable for various dark and glare scenes, and good enhancement effect and real-time performance can be guaranteed under various low-illumination scenes and image resolutions.

A method can include using a digital camera of a digital microscopy system, acquiring a digital image of an engineered three-dimensional object positioned on a base and illuminated by a light source; using the digital camera, acquiring a digital image of a color checker card positioned on the base and illuminated by the light source; determining a light source criterion by assessing position of the light source based at least in part on a shadow in the digital image of the engineered three-dimensional object as castby the engineered three-dimensional object and based at least in part on saturation of color in the digital image of the color checker card; and calibrating the digital microscopy system using the light source criterion to generate a calibrated digital microscopy system.

The invention relates to a micro display device for a bifocal plane HUD (head up display) system, which solves the problems of halved field of view, limited working bandwidth, low color saturation and low brightness of the existing bifocal plane HUD system, and comprises an image display module and a polarization modulation element arranged above the image display module, the polarization modulation element is used for polarization modulation of display pixels, the effective area of the sub-wavelength medium grating arrangement is equivalent to a 1 / 2 wave plate, the display pixels are separated in a row-by-row or column-by-column staggered mode through the sub-wavelength medium grating arrangement, and the problem that the view field is halved due to an existing target surface space partitioning scheme is solved. The two adjacent sub-wavelength medium gratings convert incident light into linear polarization states in two directions, the two directions are mutually orthogonal, and the two spaced sub-wavelength medium gratings are completely the same, so that the two images are respectively adjusted into the mutually orthogonal linear polarization states, and the two images are generated in a staggered manner.

The invention discloses an SAR image orientation sensitive target detection method based on sub-aperture image saturation characteristics, and belongs to the technical field of synthetic aperture radar image target detection. The azimuth sensitive target detection is realized through the following steps: 1) sub-aperture image generation: dividing an azimuth frequency spectrum into a plurality of sub-bands, and generating a plurality of sub-aperture images through inverse Fourier transform; 2) color synthesis and feature extraction: allocating different hues to each sub-aperture image by using an HSV color space, synthesizing an RGB color image, converting the RGB color image to the HSV color space, and extracting a saturation channel in the RGB color space as an azimuth sensitivity feature map; and 3) target detection: carrying out threshold segmentation on the saturation feature map, and identifying a pixel region with a high saturation value, namely, an orientation sensitive target. According to the method, the color saturation change caused by the scattering difference of the target in different sub-apertures is utilized, effective detection of azimuth sensitive targets such as artificial buildings and vehicles is achieved, and the method has the advantages of being simple in calculation and high in robustness.

Facial Comparison Biometrics System: A facial comparison biometrics system, comprising a facial comparison biometrics server (4) and one or more devices (6) arranged to acquire a biometric video stream from a user. The facial comparison biometrics server (4) includes a configurator (8) arranged to issue an acquisition configuration to at least one device (6) and an analyzer (10) arranged to receive and process a biometric video stream from said at least one device (6) in response to an acquisition configuration and to return an injection attack indicator.The facial comparison biometrics server (4) is arranged to determine, for each acquisition configuration, at least one acquisition parameter condition chosen from the group comprising a zoom value, a sharpness value, an exposure value, a white balance value, and a color saturation value, to vary the value of at least one acquisition parameter condition in the acquisition configuration for which it was determined, to measure in the resulting biometric video stream at least one characteristic property of at least one acquisition parameter condition, and to return an injection attack indicator based on the measurement of at least one characteristic property. Fig. 1.

The invention relates to the technical field of image recognition, in particular to a horticultural product fungal disease image recognition system and method, and the system comprises an image collection module, an image segmentation module, an anomaly detection module, a feature extraction module, a disease recognition module and a decision output module. In the prior art, the intensity of a light supplementing lamp is manually adjusted, and instantly changing illumination conditions (such as cloud layer shielding and tree shadow shaking) are difficult to deal with in an open-air plantation, so that leaf scab details are often submerged by strong light or dim light is blurred; according to the scheme, a closed-loop linkage system of ambient light perception and an annular LED is innovatively deployed, and the light supplementing intensity is reversely adjusted in a millisecond level by tracking ambient brightness in real time, so that purple gray hyphae of downy mildew in mist in the morning and anthracnose black spots under the noon burning sun present completely consistent color saturation and texture definition in imaging; and the problem of misdiagnosis caused by illumination fluctuation in the traditional method is thoroughly solved.

A method can include using a digital camera of a digital microscopy system, acquiring a digital image of an engineered three-dimensional object positioned on a base and illuminated by a light source; using the digital camera, acquiring a digital image of a color checker card positioned on the base and illuminated by the light source; determining a light source criterion by assessing position of the light source based at least in part on a shadow in the digital image of the engineered three-dimensional object as cast by the engineered three-dimensional object and based at least in part on saturation of color in the digital image of the color checker card; and calibrating the digital microscopy system using the light source criterion to generate a calibrated digital microscopy system.

The invention discloses an automatic vegetation coverage extraction method for field camera survey. The method comprises the following steps: inputting an RGB electronic photo to be processed; calculating the overgreen index and the color saturation of the RGB electronic photo; determining a threshold value of over-green index segmentation vegetation pixel by pixel by using the color saturation; identifying a vegetation pixel based on the over-green index and a pixel-by-pixel threshold value; and counting the proportion of the number of vegetation pixels in the RGB electronic picture to the total number of pixels, thereby obtaining the vegetation coverage. According to the method, the optimal threshold value of ExG segmented vegetation can be determined pixel by pixel for RGB electronic photos imaged under different illumination conditions and ground feature scenes, so that high-precision automatic extraction of the vegetation coverage FVC is realized, and vegetation coverage data of a quadrat scale can be quickly and accurately acquired during field investigation; the method is simple in principle, easy to implement, high in adaptive capacity, high in automation degree and wide in application range, and has wide application value in the fields of ecology, geography, remote sensing and the like.

The invention provides a portrait beautifying real-time processing method based on a deep neural network, and the method comprises the steps: carrying out the age classification processing of a face region in a feature map through an initialized age recognition neural network module, analyzing the face age indication features of the face of a user, judging the age group of the user, and outputting an age classification label; performing differentiation analysis on each face age indication feature according to the age classification label, taking a differentiation analysis result as a weight distribution basis, distributing weight coefficients to different face age indication features according to importance degrees, and obtaining face feature vectors for different age groups; and according to an eye processing strategy in the personalized beautification processing scheme, performing refined processing on the eye region, and adjusting eye contour enhancement strength and color saturation parameters according to the age group of the user to obtain image data subjected to eye beautification processing.

The invention relates to the technical field of visual inspection, and discloses a piston rod surface defect detection method and system based on visual inspection. According to the method, firstly, a depth-of-field image data set containing color saturation features of each depth-of-field level is obtained, and a detection process is triggered by calculating the overall color vision offset of the color saturation features and reference features. When the offset exceeds a threshold value, point cloud data are extracted, an oxidation area three-dimensional model is constructed through surface contour fitting, and first space contour data are output; after the oxidation depth is divided into grid units, a depth gradient vector field and local curvature features are calculated, and oxidation depth distribution data are obtained; and grading and generating an oxidation degree distribution diagram based on the data, and finally correcting the boundary of the three-dimensional model in combination with an original image data set to generate accurate second space contour data. According to the method, color features and depth information are fused, accurate positioning, quantitative grading and boundary correction of the oxidation corrosion area are achieved, and reliable support is provided for automatic detection of piston rod surface defects.

The invention relates to a heat transfer printing receiving sheet with excellent storage stability. The heat transfer printing receiving sheet comprises a printing layer, a bottom coating, a front base material layer and a bonding layer which are sequentially arranged from top to bottom. The printing layer mainly comprises the following components in parts by weight: 50-95 parts of vinyl chloride resin containing polar groups, 5-30 parts of resin with polar groups, 1-12 parts of a release agent and 0.5-3 parts of a curing agent; the release agent is polyester modified organic silicon resin. By limiting the types and specific proportions of the two resins of the printing layer, the polyester modified organic silicon and the two resins are subjected to cross-linking reaction, the chemical structure stability of the printing layer can be improved, and the polyester modified organic silicon resin is relatively high in loss resistance, so that the printing layer has good dye receiving capability, and the printing layer is not prone to being damaged. While the color saturation of the image is ensured, the image can be stored for a longer time in a light environment and a humid environment, and the image retention performance is improved.

The invention relates to the technical field of package printing, in particular to an offset printing lithographic plate high-saturation package color reduction printing method, device and equipment and a medium, and the method comprises the following steps: obtaining a standard Lab color value of a large-area intermediate color in a target image based on an international standardized color management system; separating an intermediate color in a target image to a user-defined spot color layer according to the standard Lab color value, and determining an overprinting proportional relation between basic CMY three colors and the intermediate color according to the user-defined spot color layer; screening optimization processing is carried out on an area corresponding to the overprinting proportional relation so as to reduce interference of basic CMY three colors on an intermediate color; and generating a standardized printing file containing the spot color layer and the basic CMY color, and finishing printing through an offset printing process. The offset printing method has the effect of solving the problems of insufficient color saturation and poor color stability in existing offset printing package printing.

Embodiments of mallet-style putter-type golf club heads comprising a first color and an alignment system to draw a golfer's eye towards a particular desirable location are described herein. The alignment system includes a central line extending rearward from a top edge centerpoint toward the rear portion and comprising a second color different from the first color. The alignment system further includes a focus element having a first grouping of lines and a second grouping of lines each extending rearward parallel to the central line and comprising a base abutting a top edge. Each of the first grouping of lines and the second grouping of lines further comprise at least the second color, a color saturation that changes as the lines extend rearward from the top edge, and line lengths that decrease as the first grouping of lines and the second grouping of lines are distributed further from the central line. The alignment system's changes in color, color saturation, and line length provide means to draw the human eye into focus at a particular desirable location to minimize mis-strokes that would cause undesirable variance from the desired trajectory or roll path.

Method for monitoring a print on a substrate, in which ultrasonic waves (25) are sent through the substrate (7) in transmission mode, in which an attenuation measurement of the received sound level (I E ) is carried out, where a signal for the quality of the print (18-21) is derived from the damping measurement and where a measurement location (29) is selected depending on the color saturation in the print (18-21).

The invention relates to a screen body light efficiency detection method, device, system and equipment and a storage medium, and the method comprises the steps: obtaining a plurality of test backlight values, and transmitting a backlight control signal to a to-be-tested device based on the test backlight values one by one, so as to enable the to-be-tested device to adjust the backlight value of a screen body to a corresponding test backlight value based on the backlight control signal, thereby achieving the detection of the light efficiency of the screen body. And detecting the screen body light efficiency of the screen body under the test backlight value, and finally determining the target screen body light efficiency of the to-be-tested equipment according to the detected multiple screen body light efficiencies. By automatically detecting the screen body light efficiency under different test backlight values, the optimal screen body light efficiency can be quickly and accurately identified, the backlight value and the current value corresponding to the optimal screen body light efficiency are further obtained, the stability of the brightness and the color saturation of the screen body is ensured, and the user experience feeling is improved. Besides, the light efficiency of the screen body can be detected without manual operation in the mode, the influence of subjective factors is avoided, and the method is suitable for diversified screen body detection.

The utility model provides an educational lighting LED, which comprises an LED body, the LED body comprises a support, a fluorescent glue layer, a pin, a first wafer, a second wafer and a bowl cup, the bowl cup is arranged in the support, the first wafer and the second wafer are arranged in the bowl cup in series and connected with the support, the pin is connected with the support, and the fluorescent glue layer is arranged on the support. The fluorescent glue layer is arranged in the bowl cup in a wrapping manner, and the fluorescent glue layer is a mixture layer formed by combining blue powder, green powder, red powder, infrared fluorescent powder and transparent silica gel; the wavelength of the first wafer is set to be 450 to 455 nm, and the wavelength of the second wafer is set to be 465 to 470 nm; the color rendering index Regt of the LED body; 95; a color saturation index Rgt of the LED body; 95; a color fidelity index Rfgt of the LED body; 90; students are enabled to be more active and more positive in learning, the effective brightness of the light source is high, the students are wider in view and clearer in object watching, and myopia prevention of the students is facilitated.

The invention provides super-sensitive paper and a preparation method thereof. The preparation method comprises the following steps: making raw paper; wherein the raw paper comprises a surface layer, a surface lining layer, a core layer and a bottom layer which are sequentially stacked; each layer of paper pulp comprises a whitening agent and a dye; and coating the front and back surfaces of the raw paper for one time. The super-sensitive paper obtained by utilizing the preparation method of the super-sensitive paper has the characteristics of high opacity, low glossiness, high printing color saturation, strong paper texture feeling, good texture and the like, has unique visual and touch effects, has the characteristics of roughness, thickness and obvious texture in the aspect of touch feeling, and has the characteristics of good color and luster in the aspect of vision. The product is low in glossiness, can present unique color and grain effects after being printed, enables people to feel distinctive texture and quality value of printed matters, and can be applied to the fields of high-end brands, cover design, brochure, business cards and the like, and in addition, the preparation method also has the characteristics of simple process and low cost.

The application relates to a driving scene-based song MV automatic generation method and device, and belongs to the technical field of vehicle control, wherein the driving scene-based song MV automatic generation method comprises the following steps: determining a driving scene of a target vehicle based on an average vehicle speed and a steering wheel angle change rate of the target vehicle from a target time to a current time, wherein the time interval between the target time and the current time is a first preset time length; determining picture color saturation, video frame switching frequency and visual element complexity of a song MV based on the driving scene of the target vehicle; and adjusting the picture color saturation, the video frame switching frequency and the visual element complexity of the song MV based on the driving scene of the target vehicle, a currently played lyric segment, a visual feature of a currently played video frame sequence and a next played lyric segment. The application can improve in-vehicle entertainment while ensuring driving safety.

The invention provides a lamplight gradual change control method and system, electronic equipment and a storage medium, and the method comprises the steps: receiving a lamplight gradual change instruction, and analyzing the instruction to obtain a current red-green-blue component parameter and a target red-green-blue component parameter; on the basis of a preset minimum component change formula, the current red, green and blue component parameters and the target red, green and blue component parameters, actual brightness value change curves of the three components are constructed; and controlling light to gradually change from the current red-green-blue component parameter to the target red-green-blue component parameter according to the actual brightness value change curve. The current and target red, green and blue component parameters in the lamplight gradual change instruction are analyzed, the actual brightness value change curve of each component is constructed in combination with the preset minimum component change formula, gradual change is controlled according to the actual brightness value change curve, unexpected white light in the gradual change process can be restrained in a targeted mode, the color saturation is guaranteed, and the color change efficiency is improved. And smooth transition and color optimization of the lighting effect are realized.

The invention discloses a color gamut management method for a multi-primary-color LED lamp / screen. The color saturation of a corrected light-emitting color point is improved to the maximum extent on the basis of applying a rigid target color gamut space management method. Comprising a method for establishing a unified target color gamut space for a plurality of multi-primary-color LED lamps / screens, and a method for dividing the target color gamut space into a core rigid correction area and a peripheral flexible correction area according to the demand of the market for color saturation under the condition of establishing the target color gamut space. A flexible correction algorithm is introduced into a target light-emitting color point in a peripheral flexible correction area to correct the target light-emitting color point, and the corrected light-emitting color point moves towards the boundary direction of an original color gamut space, so that the color presented by the multi-primary-color LED lamp / screen is richer than the color corrected by adopting a rigid color gamut management method; on the basis of ensuring the consistency of the light-emitting colors of the light-emitting color points in the core rigid correction area, the capability of original high-saturation colored light can be fully exerted.

The present invention relates to the field of tires, and in particular to a tire and a tire vulcanization mold for improving color saturation, wherein the tire includes a marking area arranged on the sidewall, a pattern filling is arranged in the marking area, the pattern filling is formed by a plurality of identical pattern units arranged regularly, the pattern unit includes a plurality of extension segments extending outward from the center, each extension segment is evenly distributed in the circumferential direction, an angle region is formed between two adjacent extension segments, the inner ends of each extension segment are fixedly connected to each other, and the outer ends of the extension segments are respectively provided with extensions extending toward the angle regions on both sides of the extension segment, one of the extensions in a pattern unit extends into one of the angle regions of another pattern unit adjacent to the pattern unit, and the boundary line of the extension is parallel to and adjacent to the boundary line of the corresponding angle region. The present invention makes the pattern units more closely inlaid, reduces the area of ​​the blank area, and improves the visual impact.

The present application relates to a rainy day image fault-tolerant model based on an improved convolutional long short-term memory network, comprising: a feature extraction module and a regional feature enhancement module; the feature extraction module is used to extract rain streak features in rainy day images and efficiently learn key areas of interest, outputting a feature map; the regional feature enhancement module captures and removes raindrop information of different scales based on the feature map, and outputs a rain-removed image; the present application can capture rain streaks of different scales, while removing basic rain lines, protecting important image details, textures, and background information, thereby obtaining a rain-free image with higher color saturation and quality, making the restored image cleaner and having better visual effects.

The invention discloses a color correction and detail unlocking underwater image enhancement method based on frequency decoupling. The method comprises the following steps: performing multi-frequency domain decomposition on an underwater image to obtain a low-frequency component and a high-frequency component; inputting the high-frequency component into a high-frequency detail unlocking branch, fusing frequency domain selection attention and channel attention mechanisms, performing fine-grained modeling on high-frequency texture features, strengthening real details, and suppressing high-frequency noise at the same time; inputting the low-frequency component into a low-frequency enhancement branch, carrying out global modeling and enhancement on the low-frequency feature by adopting a self-attention mechanism, and adjusting the overall brightness distribution, color saturation and structural information of the image; and carrying out fusion reconstruction on the output features of the low-frequency enhancement branch and the high-frequency detail unlocking branch to realize enhancement.

The present invention provides a display structure, which includes: an anti-reflection layer, comprising a multi-layer dielectric having a refractive index gradient, the refractive index of the multi-layer dielectric increasing from top to bottom, the K value of the multi-layer dielectric being less than 0.5, the total thickness and the equivalent refractive index of the anti-reflection layer satisfying certain conditions for the three primary colors of red, green, and blue, such that the upper and lower electric fields at the position where the phase change layer is located below the anti-reflection layer are 0; a phase change layer, the optical loss of the phase change material used being less than a first preset threshold and the refractive index being greater than a second preset threshold, the phase change layer being located below the anti-reflection layer; a first metal layer, being a lossy metal for providing K value compensation, the first metal layer being located below the phase change layer; a second metal layer, for forming an FP cavity, the second metal layer being located below the first metal layer; and a dielectric layer, located below the second metal layer. The present invention realizes a reflective phase change display structure with high reflectivity, high color saturation, angle insensitivity, dynamic tunability, and simple structure.

The invention relates to a thermal transfer receiving sheet capable of transferring a high-color-concentration image and a preparation method of the thermal transfer receiving sheet, and relates to the technical field of thermal transfer. The heat transfer printing receiving sheet comprises a receiving layer, and the receiving layer is prepared from the following raw materials in parts by weight: 30 to 60 parts of vinyl chloride-vinyl acetate resin, 3 to 10 parts of polyvinyl butyral resin, 0.1 to 5 parts of poly-alpha olefin and 0.1 to 1 part of release agent. According to the heat transfer printing receiving sheet formed by the raw materials of the receiving layer, the color saturation of an image on the heat transfer printing receiving sheet can be obviously improved, the heat transfer printing receiving sheet has high demolding performance, and the problems of adhesion, fading and other transfer printing defects occurring in transfer printing are solved.

This invention discloses a laser dimension measurement device and method for hollow plastic panels, belonging to the field of laser measurement technology. The method obtains the optical signal-to-noise coefficient based on laser echo intensity, surface reflection uniformity, and speckle contrast; it obtains the motion disturbance coefficient based on encoder slip rate, dynamic bow height of the panel, and edge burr fluctuation frequency; and it obtains the medium interference coefficient based on ambient stray light flicker frequency, transmission depth offset, and color saturation. Furthermore, based on the optical signal-to-noise coefficient and motion disturbance coefficient, combined with the resonant frequency of the internal cavity of the panel and the hollow layer collapse coefficient, a resonance-collapse measurability model is used to obtain resonance-collapse measurability. Finally, combining the medium interference coefficient and the current scanning axis acceleration, an optimized scanning axis acceleration is obtained through an acceleration optimization model. This invention can comprehensively evaluate multi-source interference during the measurement process, dynamically optimize scanning parameters, and improve measurement accuracy and stability.

The invention discloses a streaming media platform optimization method and system based on video image processing, and relates to the technical field of streaming media, and the method comprises the steps: collecting an image frame sequence, extracting a brightness histogram feature value and color saturation data, calculating the quality score of the image frame sequence, and building a dynamic bit rate distribution model; performing coding compression processing on the image frame sequence through a dynamic bit rate distribution model to generate a video data stream with a self-adaptive code rate, and transmitting the video data stream to a streaming media server; and collecting playing quality feedback data of the streaming media server, and optimizing and adjusting the dynamic bit rate distribution model based on the playing quality feedback data. According to the method, the brightness histogram and the color saturation data of the video frame are extracted, the quality scoring model based on the double-branch neural network is established, and adaptive video coding compression is realized in combination with dynamic bit rate allocation, so that the bandwidth occupation is effectively reduced while the video quality is ensured, and the user experience and the system performance of streaming media service are improved.

The present invention discloses a streaming media platform optimization method and system based on video image processing, which relates to the field of streaming media technology. The method comprises collecting an image frame sequence, extracting brightness histogram eigenvalues ​​and color saturation data, calculating a quality score of the image frame sequence, and establishing a dynamic bit rate allocation model; encoding and compressing the image frame sequence through the dynamic bit rate allocation model to generate a video data stream with an adaptive bit rate, and transmitting the stream to a streaming media server; collecting playback quality feedback data from the streaming media server, and optimizing and adjusting the dynamic bit rate allocation model based on the playback quality feedback data. The present invention extracts brightness histogram and color saturation data of video frames, establishes a quality scoring model based on a dual-branch neural network, and combines dynamic bit rate allocation to achieve adaptive video coding compression, thereby effectively reducing bandwidth occupancy while ensuring video quality, thereby improving the user experience and system performance of streaming media services.

The invention relates to a lens element intended to be worn in front of the eyes of a wearer, comprising:-a substrate (3) having a front face (3F) and a back face (3R); -one or more structures (9) to be masked wherein the lens element (1) further comprises a masking medium (15) arranged in front of the one or more structures (9) to be masked, the masking medium (15):-exhibiting an absorption characteristic defined by a visual absorption parameter Av in the range of 5% to 25%, the average absorptivity is defined as Av = 100%-Tv-Rv * tot, and-providing the lens element (1), alone or in combination, with: o front visual reflectance Rv < = 2.3%, and / or o front reflectance color saturation Suvlt; 1.8).