683 results about "Pixel density" patented technology

The invention relates to the technical field of image processing, in particular to an image data processing method and system, computer equipment and a storage medium, and the method comprises the following steps: obtaining image target boundary pixel data, calculating boundary gradient change data and local pixel density change data, judging the form offset direction and amplitude, and extracting an offset maximum region. And setting a local form adjustment weight, calculating a direction compensation value, adjusting an image target contour, and generating a form compensation data set. According to the invention, through boundary pixel extraction and gradient change calculation, local pixel density fluctuation is captured, target form adjustment is more accurate, illumination intensity gradient and spectral reflectivity extraction are combined, the optical matching degree of a target area is improved, the target contour separation precision is optimized in trajectory analysis, and based on a separation boundary value and form compensation data, the target form is more accurately adjusted. According to the overall scheme, the target contour precision, the optical adaptability and the classification stability are enhanced, and high recognition reliability is kept in a complex environment.

The invention relates to the technical field of computer vision, in particular to a defect segmentation positioning method and system for an inorganic mineral casting image, and the method comprises the following steps: calling an illumination image to analyze brightness, matching exposure parameters, splicing the image, analyzing a gradient, recognizing a defect, screening an effective region, calculating a gray variance, and constructing roughness weight recognition texture features. According to the method, the high-reflection area identification, the brightness gradient analysis, the pixel-level roughness weight and the structure tensor analysis are combined, the exposure interval can be dynamically adjusted when the casting image is processed, the defect type information is output in the direction, and the positioning information is generated by correcting the recognition position in combination with the actual coordinate of the target spot. The method has the advantages that the high-reflection area identification, the brightness gradient analysis, the pixel-level roughness weight and the structure tensor analysis are combined; the method has the advantages that the method is simple and easy to implement, detail loss of overexposure areas is reduced, the recognition precision of defect areas is improved, accurate area segmentation and classification processing are achieved, roughness weight calculation combining gray variance and pixel density is combined, the sensitivity to surface fine defects is enhanced, and the precision and reliability of defect positioning are improved.

The invention relates to a display panel and a display device. The display panel comprises a pixel layer and a shading layer. The pixel layer comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixels of different colors, and each sub-pixel comprises a peep-proof sub-pixel and a sharing sub-pixel. The light shielding layer is located on the light emitting side of the pixel layer and comprises light shielding units, the light shielding units are at least located on the two opposite sides of the peep-proof sub-pixel, and the distances between the light shielding units located between the peep-proof sub-pixel and the sharing sub-pixel and the peep-proof sub-pixel and the sharing sub-pixel are the first distance and the second distance respectively, the second distance is greater than the first distance. The pixel density can be effectively improved, and then the display effect is improved.

The invention provides an intelligent POB module integration platform and a control method thereof, and the method comprises the steps: detecting the state data of each pixel point of an LED display screen through an optical sensing array, obtaining a damaged pixel point in the LED display screen, recording the damaged pixel point to a storage unit, and maintaining a dead pixel position table in the storage unit; compensating the brightness of the bad pixel points through the neighborhood pixel points; the display content of the LED display screen is predicted through AI during compensation, and the refresh rate of the LED display screen is dynamically driven according to the predicted display content; according to the physical pixel density, the LED display screen is divided into grid partitions, the grid partitions are sorted according to priorities, the real-time power consumption of each partition is calculated after the LED display screen is refreshed, and if the real-time power consumption is larger than a preset threshold value, the current and the duty ratio of the low-priority area are reduced. Through the control method, a compensation scheme can be started in time after a dead pixel occurs, the maintenance and replacement cost is reduced, and the operation and maintenance efficiency is improved.

The invention relates to the technical field of lung perfusion, in particular to an AI-based lung perfusion evaluation system, which comprises an image quality screening module, a blood vessel positioning analysis module, a blood flow velocity measurement module, a blood vessel anomaly analysis module and an anomaly response module, and is characterized in that the image quality screening module monitors the pixel density of an image and the variation amplitude of color gradient. According to the method, through real-time image definition evaluation and screening, the image selection process is optimized, it is ensured that all the images used for analysis reach the high-quality standard, the gray level change and the edge contour of the blood vessel are automatically calculated, the potential lesion area is accurately positioned and marked, more detailed blood vessel structure analysis is provided, and the accuracy of blood vessel analysis is improved. In addition, the system can rapidly analyze the speed deviation of the blood vessel segment, timely identify the abnormal blood flow, effectively improve the judgment speed of diseases such as pulmonary embolism or pulmonary hypertension, enhance the efficiency of coping with emergency medical conditions through automatic abnormal detection and recording, improve the accuracy and speed of judgment, and support more effective clinical decisions.

Systems, devices, and methods for segmenting image data and utilizing image data having different pixel densities are described. One or more image capture devices can capture vehicle-related image data, which can be segmented such that regions of the image data which are directed to important content and / or far away content can have higher pixel density than regions of the image data directed to less important content and / or content close the one or more image capture devices. Image analysis is performed on the segmented image data. Output image data is generated of a lower pixel density to reduce storage and / or transmission requirements.

The invention discloses a wide-angle image acquisition and processing system for underwater target identification, which relates to the technical field of image processing and target detection, and comprises an image acquisition and preprocessing module for acquiring an underwater image, removing initial noise through a preset filter, processing an enhanced grayscale image by adopting image smooth combination, and obtaining an underwater image; the pixel density gradient calculation module is used for calculating a multi-direction pixel density gradient by adopting a horizontal direction convolution kernel and a vertical direction convolution kernel of a Sobel operator according to the enhanced grayscale image, and obtaining a gradient intensity graph through gradient amplitude calculation; according to the wide-angle image acquisition and processing system for underwater target recognition, through multi-level feature fusion and classification positioning, the detection precision and positioning accuracy of an abnormal region in an underwater complex environment are remarkably improved, and efficient technical support is provided for underwater target recognition.

An electronic device includes a display and a sensor underneath the display. The display has a full pixel density region and a reduced pixel density region. Compared to pixels in the full pixel density region, pixels in the reduced pixel density region can be controlled using overdriven power supply voltages, overdriven scan control signals, different initialization and reset voltages, and can include capacitors and transistors with different physical and electrical characteristics. Gate drivers provide scan signals to pixels in the full pixel density region, whereas overdrive buffers provide overdrive scan signals to pixels in the reduced pixel density region. The pixels in the full pixel density region and the pixels in the reduced pixel density region can be controlled using different black level or gamma settings for each color channel and can be adjusted physically to match luminance, color, as well as to mitigate differences in temperature and aging impact.

The invention relates to the technical field of liquid crystal display, and discloses a method and system for reducing power consumption of a liquid crystal panel sequential control chip and the chip, and the method comprises the steps: obtaining historical watching data of a user, and constructing and training a user visual preference prediction model; collecting visual attention data and display content data of a user in real time, and determining a region of interest on the liquid crystal panel in combination with the prediction model; dividing a high-resolution area, a medium-resolution area and a low-resolution area of the liquid crystal panel, and setting corresponding pixel density and refresh frequency threshold values; performing visual saliency analysis on the display content, and determining a key salient region and a non-key salient region; and local refreshing is carried out in the regions with different resolutions, wherein the refreshing frequency of the key salient region is higher than that of the non-key salient region. The system comprises a plurality of modules for realizing the method. The chip adopts the system and the method, so that the power consumption of the liquid crystal panel time sequence control chip can be effectively reduced.

The invention relates to the technical field of image processing and automatic cutting, and discloses an image contour extraction and cutting method, which comprises the following steps of: setting shooting equipment at a target position, placing an actual length reference mark, shooting a reference mark image through the shooting equipment, measuring the number of pixels and determining a pixel density reference parameter; collecting an image containing the target object and the background area through the shooting equipment; identifying a to-be-replaced pixel matched with the background color based on the background color, replacing the to-be-replaced pixel with a transparent pixel, and generating a processed image after the background is eliminated; performing edge detection on the processed image, extracting contour information of a target object, generating a vector contour file of an actual size in combination with a pixel density reference parameter, and generating a cutting path; and the cutting path is sent to the cutting device, and cutting operation of the target object is completed. According to the method, the image of the target object is collected in real time, the vector contour file of the actual size is generated in combination with the pixel density reference parameters, and dynamic and accurate target object cutting is achieved.

The invention provides electronic equipment. The electronic device includes a display panel; the anti-glare optical layer is arranged on the light emitting side of the display panel, the anti-glare optical layer comprises a substrate and a microstructure layer, the microstructure layer is arranged on the surface of the substrate in the thickness direction of the substrate, and the microstructure layer comprises a plurality of microstructure units; wherein the size of a single microstructure unit is in direct proportion to the pixel density of the display panel. The electronic device can inhibit the flash point phenomenon and improve the visual definition of the displayed image while achieving the anti-glare performance.

Pixel circuits may be symmetrically arranged with respect to a boundary between neighboring pixels. Neighboring pixels may have pixel circuits which are symmetric to each other and may share at least one transistor and at least one contact area. Accordingly, a high-resolution display apparatus is provided which may be implemented by increasing integration efficiency of a pixel circuit and increasing pixel density.

An array substrate is provided. The array substrate includes a plurality of first subpixels in a first region and a plurality of second subpixels in a second region. The plurality of first subpixels include a plurality of first pixel driving circuits. The plurality of second subpixels include a plurality of second pixel driving circuits. A respective first pixel driving circuit of the plurality of first pixel driving circuits includes a smaller number of transistors than a respective second pixel driving circuit of the plurality of second pixel driving circuits. The first region has a light transmittance higher than the second region, and a subpixel density same as the second region.

A display screen includes a first display area, which is provided with a first pixel unit array, and a second display area, which is provided with a second pixel unit array, wherein the pixel density of the first display area is less than that of the second display area, the first display area includes a first sub-area and a second sub-area, and the second sub-area is connected to the first sub-area and the second display area; and the display screen further includes a pixel driving unit array, which is arranged in the second sub-area, wherein each pixel driving unit respectively drives each first pixel unit, a first number of rows of pixel driving units are arranged corresponding to a second number of rows of first pixel units in a row extension direction, and the first number is greater than the second number. Also disclosed is an electronic device.

Detailed camera systems and methods achieve rich light field sampling within limited cost and power constraints. Exemplary arrangements include designs for heterogeneous array cameras, including multifocal arrays, arrays matching depth of field to have uniform pixel density, array-aware focus, exposure and frame rate control, multispectral arrays, and multiscale arrays. One embodiment incorporates lens assemblies of two different types: a first type in which all lens elements move under control of a focus actuator, and a second type in which only some of the lens elements move under control of a focus actuator—the others are stationary. A great number of other features and arrangements are also detailed.

The invention provides a display module and electronic equipment, the display module comprises a first display screen and a second display screen, the directions from light emitting sides to backlight sides of the first display screen and the second display screen are the same, and the second display screen is located on the backlight side of the first display screen; the first display screen comprises a light-transmitting part and a first display part, and the projection of the second display screen in the thickness direction of the display module covers the light-transmitting part; the pixel density of the first display screen is smaller than that of the second display screen. The display module is formed by splicing the first display screen and the second display screen, so that the total area of the display module is large, and the requirement of a large field angle can be met. In addition, the area of the second display screen can be set to be small, so that the material cost of the second display screen can be reduced, the product yield is improved, and the cost of the display module and the electronic equipment is reduced. Therefore, according to the display module and the electronic equipment provided by the invention, the cost of the display module and the electronic equipment is relatively low.

An electronic device may include a display and an optical sensor formed underneath the display. The display may have both a full pixel density region and a high-transmittance region that overlaps the optical sensor. To increase the transmittance of light through the high-transmittance region of the display, emissive sub-pixels in the high-transmittance region may be shorted together. Each emissive sub-pixel may be shorted to an emissive sub-pixel of the same color. The emissive sub-pixels in the high-transmittance region of the display may have the same layout but smaller sizes relative to the full pixel density region of the display. The thin-film transistor sub-pixels in the high-transmittance region may be consolidated horizontally and / or vertically to produce larger continuous high-transmittance areas.

A display substrate, a driving method thereof, and a display device. The display substrate includes: a first display sub-region including a plurality of first repeating regions each including a first pixel unit and a second pixel unit disposed adjacently, the first pixel unit including a first sub-pixel and a second sub-pixel, and the second pixel unit including a second sub-pixel and a third sub-pixel; and a second display sub-region including a plurality of second repeating regions each including a third pixel unit and a first transparent pixel, the third pixel unit including a first sub-pixel, a second sub-pixel and a third sub-pixel; the first transparent pixel is configured such that a pixel density of the second display sub-region is less than a pixel density of the first display sub-region, and a light transmittance of the second display sub-region is greater than a light transmittance of the first display sub-region.

The invention relates to the technical field of model construction, in particular to a construction method and system for an OLED efficiency roll-off prediction model, and the method comprises the following steps: extracting key performance indexes, including brightness, pixel density, temperature and voltage parameters, based on collected OLED equipment performance correlation data, evaluating the correlation of parameters in the aspect of predicting OLED efficiency roll-off, and calculating the performance of the OLED equipment; and a data processing flow is adjusted, and a key performance index set is constructed. According to the invention, the key performance indexes are extracted and optimized by using the collected OLED equipment performance related data, so that the model can reflect the efficiency roll-off of the OLED more accurately, integrates new use data and analyzes the time sequence and the use frequency, thereby improving the recognition capability of the OLED service life influence factors, and improving the recognition efficiency of the OLED. And the stability of the model under various test conditions is improved through iterative testing, so that the reliability of a prediction result is optimized, and the efficiency of data analysis and processing is optimized by collecting and processing multi-source data in real time and adopting a continuous feedback mechanism.

The invention discloses a cradle head dynamic control method and device, and the method comprises the steps: obtaining a two-dimensional pixel coordinate of a target object on a display plane, converting the two-dimensional pixel coordinate into a physical space coordinate through a coordinate conversion algorithm, and obtaining the pixel offset of the target object relative to the center of a cradle head; based on the pixel offset and the pixel density parameter, performing angle calculation by using a trigonometric function calculation module to obtain rotation angle parameters required by the horizontal axis and the vertical axis of the holder; pWM control signal conversion is carried out on the rotation angle parameter, a corresponding number of pulse waveforms are generated through a stepping motor driving module, and a holder double-shaft motor is controlled to rotate; and based on the deviation value between the current position of the holder and the target angle, real-time error correction is performed by adopting a PID control algorithm, so that the holder tracks the target object in real time and keeps pointing to the position of the target object. Through the solid geometry correction technology, the problems of precise positioning and dynamic tracking of a traditional pan-tilt control system in a complex scene are solved, and the precision and stability of pan-tilt control are improved.

The invention belongs to the technical field of textile detection, and discloses an intelligent woven fabric density detection method and system based on multispectral imaging, and the method comprises the steps: collecting multispectral fabric images through a multispectral imaging device, and carrying out the noise reduction and texture contrast enhancement processing of the multispectral fabric images in sequence through the combination of an image processing technology, obtaining a fabric enhanced image; constructing a deep convolutional network classifier to classify the fabric texture, and segmenting a yarn region in the fabric enhanced image based on a fabric texture classification result to obtain a segmented yarn binary mask image; and inputting the yarn arrangement direction into a sub-pixel density calculation model, and calculating a yarn density value through the sub-pixel density calculation model. In the yarn breakage repairing stage, the broken yarn is repaired according to the initial warp and weft direction meeting the orthogonal constraint, and the calculation precision of the yarn arrangement direction is effectively improved.

The present disclosure relates to a display substrate, a display panel, a display device, and a manufacturing method of the display panel. The display substrate display substrate includes a display area, the display area including: a plurality of sides, wherein adjacent sides of the plurality of sides intersect to form a plurality of corners; a first display area having a first pixel density; and a second display area having a second pixel density lower than the first pixel density, wherein the second display area is located in at least one of the corners.

The invention discloses a cross-terminal self-adaptive data chart dynamic rendering method and system, belongs to the technical field of data visualization, and aims to solve the technical problems of how to realize cross-terminal self-adaptive data chart dynamic rendering, guarantee visual coordination among different devices and improve the rendering efficiency. According to the technical scheme, an equipment parameter set of terminal equipment is obtained; wherein the device parameter set at least comprises a screen size, a pixel density DPI, an input mode type and a screen aspect ratio; according to the proportional relation between the screen size and the watching distance, dynamically calculating a device feature weight value; through a pre-constructed adaptive decision tree, mapping the device feature weight value into a layout parameter set, realizing automatic derivation of layout parameters, and previewing a device adaptation effect in real time; and dynamically recombining the atomized chart component according to the layout parameter set, and outputting a data visualization chart adaptive to the current terminal.

The utility model relates to the field of Micro-LED display, in particular to a vertically stacked three-color full-color Micro-LED structure, which is characterized in that the vertically stacked three-color full-color Micro-LED structure comprises a driving circuit, a first chip, a second chip and a third chip are sequentially arranged on one side of the length direction of the driving circuit from top to bottom, and the first chip, the second chip and the third chip are arranged on the other side of the length direction of the driving circuit. The length of the first chip is larger than that of the second chip, and the length of the second chip is larger than that of the third chip, (1) the space occupation caused by transverse tiling in the Micro-LED array is reduced, the pixel density of a display screen is remarkably improved, the area of full-color pixels is reduced, the overall size of the screen is reduced, and the size of the display screen is reduced; according to the invention, the structure is simple, the structure is compact, the structure is simple, the structure is especially suitable for high-precision, high-resolution and miniaturized display equipment, the influence of high-energy photons of blue light or green light on the red light chip is effectively reduced, each chip pole can be directly and vertically connected to the driving circuit at the bottom, the occupied space is reduced, and the problems of complicated pole extension and connection in a traditional stacked structure are avoided.

A driver assistance system for a vehicle, the driver assistance system comprising a camera mounted on the vehicle and configured to capture one or more images inside and / or outside of the vehicle, and a processing unit, wherein the camera has a defined field of view (FOV), the camera comprises an optical lens that causes a distortion of the captured images, the processing unit is configured to perform distortion compensation on the images captured by the camera, wherein a pixel density in the resulting compensated images is increased in defined areas of the image due to the distortion, and the defined areas of increased pixel density in the compensated images correspond to a region of interest (ROI) within the image, wherein the ROI is smaller than the FOV of the camera.

The invention discloses a method and a device for quickly positioning, enhancing and identifying a two-dimensional code, and the method comprises the steps: carrying out the graying and binaryzation of an original image collected from a camera, and carrying out the compression of rows and columns through a run length coding method, and storing the preprocessed image information. Pixel segments conforming to features are extracted from horizontal and vertical scanning compression information according to black and white pixel density features of a two-dimensional code, pixel segment information is converted into feature maps in a newly-built horizontal and vertical image, and an intersection of the two feature maps is taken. And obtaining connected domains from the intersection, traversing the connected domains, screening and rejecting the connected domains which do not conform to conditions, obtaining coordinate point information of the connected domains which conform to the conditions, and carrying out frame selection in the original image to obtain a coarse positioning frame of the two-dimensional code. And cutting the two-dimensional code image according to the two-dimensional code coarse positioning frame, putting the cut two-dimensional code image into the trained improved MIMO-Unet model for reasoning to obtain an enhanced two-dimensional code image, simultaneously calling three decoding libraries to decode the two-dimensional code image in a multi-thread mode, and judging and returning an identification result.

A display apparatus includes: a first display area comprising a first plurality of pixels; a second display area comprising transmission areas and a second plurality of pixels, wherein: the second plurality of pixels of the second display area are arranged in a buffer display area and a normal display area of the second display area; the buffer display area is adjacent to the first display area; the normal display area is spaced apart from the first display area; and a pixel density of the normal display area is less than a pixel density of the buffer display area; and a blocking metal layer in the second display area and comprising openings corresponding to the transmission areas.

Provided are a pixel unit and a manufacturing method therefor, a micro display screen comprising the pixel unit, and a pixel-level discrete device. The pixel unit comprises a driving backplane (10) and a display unit (20) disposed on the driving backplane (10); the display unit (20) comprises a first device layer (30), a second device layer (40) and a third device layer (50) which are sequentially and vertically stacked, the first device layer (30) comprises at least one first sub-pixel (31), the second device layer (40) comprises at least one second sub-pixel (41), the third device layer (50) comprises at least one third sub-pixel (51), and the projection of any first sub-pixel (31), any second sub-pixel (41) or any third sub-pixel (51) on the driving backplane (10) is located in the projection of any sub-pixel above the sub-pixel on the driving backplane (10); the first device layer (30) emits red light in a working state, the second device layer (40) emits green light in a working state, and the third device layer (50) emits blue light in a working state. The pixel unit is arranged by means of vertical and coaxial stacking, so that the pixel density is effectively increased, and different color matching requirements can be met by adjusting the sizes of the sub-pixels in different device layers.

An electronic device that can provide a high sense of immersion is provided. An electronic device with low power consumption is provided. The electronic device includes a first display device, a second display device, a first half mirror, an eyepiece lens, and a first lens. The first display device displays a first image, and the second display device displays a second image. The first display device is provided at a position so that the first image is reflected by the first half mirror and enters the eyepiece lens. The second display device is provided at a position so that the second image passes through the first half mirror and enters the eyepiece lens. The first lens is provided between the second display device and the first half mirror. The pixel density of the first display device and that of the second display device are equal to each other. The first image is presented with a first viewing angle through the eyepiece lens, and the second image is presented with a second viewing angle greater than the first viewing angle through the eyepiece lens.

The invention discloses an AI vision-based transparent bottle body curved surface printing graph and character detection system, and relates to the technical field of machine vision detection, and the main scheme is as follows: collected images are preprocessed, including de-noising and enhancement, and a position deviation mean value P can be calculated through position accuracy data according to the characteristics of a transparent bottle body curved surface; whether the position accuracy meets the standard or not is evaluated according to the position deviation mean value P, images are collected with high unit pixel density and high frame rate, and it is ensured that each subtle part of the graphic characters can be clearly recorded; from image acquisition to result output, the whole system achieves automatic operation, manual intervention is not needed, the detection speed is greatly increased, a large number of transparent bottles can be rapidly processed, the requirement for large-scale production is met, all modules of the system have high adaptability and flexibility, and the system is suitable for popularization and application. And different types of transparent bottles, patterns, characters and printing processes can be processed.