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11 results about "Color depth" patented technology
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Color depth or colour depth (see spelling differences), also known as bit depth, is either the number of bits used to indicate the color of a single pixel, in a bitmapped image or video framebuffer, or the number of bits used for each color component of a single pixel. For consumer video standards, such as High Efficiency Video Coding (H.265), the bit depth specifies the number of bits used for each color component. When referring to a pixel, the concept can be defined as bits per pixel (bpp), which specifies the number of bits used. When referring to a color component, the concept can be defined as bits per component, bits per channel, bits per color (all three abbreviated bpc), and also bits per pixel component, bits per color channel or bits per sample (bps). Color depth is only one aspect of color representation, expressing the precision with which colors can be expressed; the other aspect is how broad a range of colors can be expressed (the gamut). The definition of both color precision and gamut is accomplished with a color encoding specification which assigns a digital code value to a location in a color space.
A method, apparatus, storage medium, and electronic device for generating report charts.
This specification discloses a method, apparatus, storage medium, and electronic device for generating report charts. The method includes: acquiring chart data input by a user; identifying the chart data to determine whether it contains a theme marker; if so, determining the primary color of the report chart based on the hue corresponding to the theme marker; otherwise, inputting the chart data into a pre-trained classification model to determine the industry sector to which the chart data belongs, and determining the primary color based on the industry sector; if a call instruction corresponding to a geographic information component is received, determining a first background color based on the hue corresponding to the primary color, and setting the background color of the report chart to the first background color; otherwise, setting the background color of the report chart to a second background color, wherein the color depth of the first background color is greater than the color depth of the second background color; and rendering each element contained in the chart data according to the background color and primary color of the report chart to generate a report chart.
Owner:ZHEJIANG LAB
Image detection methods, apparatus, systems and electronic devices
ActiveCN116012325Blow resolution accuracyAccurate Image Detection MethodImage analysisCharacter and pattern recognitionImaging qualityRadiology
This application relates to an image detection method, apparatus, system, and electronic device. The image detection method includes: acquiring a white light image and a NBI image of an image to be detected; performing feature extraction processing on the white light image and the NBI image respectively to obtain color depth features of the white light image and texture depth features of the NBI image; performing depth feature fusion processing based on the color depth features and the texture depth features to obtain fused depth features; performing image quality detection processing based on the fused depth features; and generating a target image detection result for the image to be detected. This application solves the problem of low accuracy in image detection and achieves an accurate and efficient image detection method.
Owner:ZHEJIANG HEALNOC TECH CO LTD
Face misbrush prevention method, device and equipment and storage medium
The present application provides a face anti-misbrushing method, device and equipment and storage medium, relating to the technical field of computer. The method comprises: collecting color two-dimensional images of multiple faces and depth images of the multiple faces; mapping the depth images to the color two-dimensional images to obtain color depth images; determining the spatial relationship between a first face and a second face in the multiple faces based on the position information of the first face and the second face in the color depth images; and outputting prompt information based on the spatial relationship between the first face and the second face, the prompt information being used to prompt user operation behavior for the first face or the second face. The method can prevent unintentional face brushing users from misbrushing, not only improving the face brushing experience of users, but also avoiding causing property loss of unintentional face brushing users.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD
A visual saliency based skein color photometric measurement method and system
This invention proposes a photographic measurement method and system for yarn color based on visual salience. First, a photographic color measurement system needs to be built. Second, a high-resolution digital image of the yarn sample is captured using a digital camera, ensuring consistency in image quality and lighting conditions. Then, visual salience color extraction is performed on the yarn, specifically including calculating the yarn brightness image, visually enhancing the features of the yarn brightness image, extracting the visual salience feature region of the yarn, and optimizing the visual salience feature region of the yarn. Finally, based on the visual salience region of the yarn, the visual salience color result of the yarn is extracted, completing the photographic measurement of yarn color based on visual salience, which is used to determine the color depth and quality of yarn during the yarn production process.
Owner:WUHAN TEXTILE UNIV
An interface identification method and system based on minimum dynamic mean difference
ActiveCN121661514BCharacter and pattern recognitionBiological modelsImaging processingComputer graphics (images)
The application discloses an interface recognition method and system based on minimum dynamic mean difference, and belongs to the technical field of image processing and geophysical prospecting. The method divides geophysical prospecting images into vertical strips with a single-pixel width, and sequentially recognizes candidate interface points with color depth meeting requirements in each strip; starting from the leftmost strip, the minimum vertical coordinate point is taken as an initial target point; for subsequent strips, the average value of the vertical coordinates of the recognized target points is dynamically calculated, the candidate points are compared with the average value, and the point with a difference within a tolerance threshold or the minimum difference is selected as a current target point; finally, all the target points are connected to form a continuous and smooth target interface. The application can automatically and accurately recognize the bottom interface in geophysical prospecting images, has strong anti-interference capability, and is suitable for batch processing of geological radar, seismic profile and other data.
Owner:CHINA RAILWAY DESIGN GRP CO LTD
HDMI device and power saving method
A power-saving method for a High-Definition Multimedia Interface (HDMI) device is provided. The method includes detecting color depth information of video data from an HDMI source connected to an HDMI port; deriving the horizontal length of each line of an image frame in segments based on the color depth information; generating multiple synchronization signals based on the horizontal length of each line in segments; powering on the HDMI port for a predetermined time period based on the synchronization signals to obtain encrypted information from the HDMI source; and powering off the HDMI port after the predetermined time period.
Owner:MEDIATEK INC
Digital processing system of natural wood grain texture images and colors based on machine vision
The application provides a machine vision-based digital processing system for natural wood grain texture images and colors, comprising: an image acquisition unit for acquiring personification color information features; a color difference recognition and segmentation unit for recognizing natural defect types in a natural wood electronic original, including knots, dead knots, cracks, mineral lines and color change regions; the application effectively overcomes the influence of natural wood base color depth and surface roughness on inkjet color development by introducing an iteration formula for substrate reflectivity and roughness compensation coefficients, realizes accurate restoration on deep or uneven wood, and simulates the visual neglect characteristics of the human eye for texture regions through a weighted average color value algorithm, so that the automatic detection system can objectively and accurately evaluate the color difference of non-uniform surfaces, avoid misjudgment, and realize full-process automation from defect recognition, color calculation, iteration printing to quality detection, greatly improving the efficiency of wood color modification process implementation.
Owner:郭子鏐
A method and system for local dimming of a smartphone backlight
This invention discloses a method and system for local dimming backlighting in smartphones, belonging to the field of smartphone dimming. The method includes the following steps: S1, screen partitioning; S2, content analysis and parameter acquisition; S3, target brightness mapping and color depth conversion prediction; S4, brightness command generation and block control; S5, color depth conversion execution and visual compensation; S6, dynamic feedback adjustment. Compared with traditional technologies, this invention solves the halo problem around small, bright objects in fixed physical partitions by dynamically reconstructing the backlight block boundaries through an embedded programmable partitioning engine; it solves the color banding defect caused by independent pixel driving when brightness suddenly drops by coupling and predicting the target brightness and color depth mode through a collaborative decision-making module; and it solves the visual fatigue caused by strong light response lag and touch flicker by fusing real-time data streams of ambient light and touch behavior through a multi-source sensing module.
Owner:DONGGUAN YUSHENG ELECTRONIC TECH CO LTD
A method for evaluating lamina structure segmentation and heterogeneity
ActiveCN117517370BPreparing sample for investigationFluorescence/phosphorescencePattern recognitionOptical spectrometer
The application discloses a method for lamination structure sectioning and heterogeneity evaluation, wherein the sectioning method comprises the following steps: obtaining an image of different element distribution by scanning a rock sample by using an XRF spectrometer, and selecting an image of a representative element with obvious change as a first image; determining a first lamination division scheme according to the color depth change in the first image; obtaining an image under a laser confocal mode as a second image by scanning by using LSCM; determining a second lamination division scheme according to the light and dark and color change in the second image; obtaining a third lamination division scheme by taking an intersection; and sectioning the rock sample along a parallel distribution direction of the lamination determined according to the third lamination division scheme to obtain single lamination samples corresponding to respective laminations. The application realizes quantitative characterization of millimeter-level lamination structure and corresponding reservoir quality, and provides scientific guidance for effectiveness evaluation of different types of shale reservoirs.
Owner:PETROCHINA CO LTD
A method, system, device and storage medium for coloring a cartoon image
The application discloses a kind of cartoon image coloring method, system, device and storage medium, wherein method includes: obtaining the size size H×W cartoon image, cartoon image is down-sampled, obtains first resolution image;First resolution image is input based on self-attention mechanism Transformer network, carries out feature extraction, and the color distribution of each pixel in first resolution image is predicted, obtains rough coloring image with color depth;Rough coloring image and cartoon image are input based on the promotion network of adversarial generation, and the resolution and color depth are reconstructed, obtain second resolution image;Second resolution image is up-sampled, and the size size H×W fine coloring image is obtained.The application utilizes Transformer model to carry out the rough coloring of low resolution low color depth, and then reconstructs resolution and color depth using adversarial generation model, which can effectively improve the coloring effect of cartoon image, and can be widely applied in the field of image processing technology.
Owner:SOUTH CHINA UNIV OF TECH
Rebar binding point detection method and device based on depth rendering, equipment and medium
The application provides a steel bar binding point detection method and device based on deep rendering, equipment and a medium, wherein the method comprises: acquiring an RGB-D image of a steel bar binding scene, the RGB-D image comprising an RGB-D image and a corresponding depth map; performing pseudo-color coding on the depth map to obtain a pseudo-color depth map; performing spatial alignment and fusion on the pseudo-color depth map and the RGB-D image to construct an RGB-depth superimposed image; inputting the RGB-depth superimposed image into a pre-trained binding point detection network to obtain a heat map of a binding point candidate position, and extracting a candidate binding point based on the heat map; performing texture consistency checking and depth layer consistency checking on each candidate binding point to screen out a binding point meeting double constraints as a final binding point, so as to solve the problems of poor robustness, low precision and easy interference of background and multi-layer steel bars in first-layer steel bar binding point detection in a complex construction scene.
Owner:JIAXING HENGGUANG ELECTRIC POWER CONSTR