498 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 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 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.

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.

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 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.

According to the image sensor manufacturing method based on the guided self-assembly technology, the guided self-assembly technology is applied to a deep groove patterning process on the back face of a wafer and is combined with a photoetching technology, so that compared with a traditional deep groove patterning process utilizing a PTD or NTD photoetching technology, the deep groove patterning process has the advantages that the deep groove patterning process is simplified; according to the invention, the resolution limit of the photoetching technology can be broken through, the pixel pitch can be reduced, the cost advantage and the pixel density can be improved, the pixel resolution can be greatly improved, the edge roughness of the deep trench isolation pattern of the pixel can be improved, and the signal crosstalk between the adjacent pixels can be reduced.

The invention relates to the technical field of applet interface design, and discloses an adaptive design method and system based on an applet interface. The method comprises the following steps: acquiring screen parameters, image resolution, pixel density and screen size of the terminal equipment, and user operation habit data, such as touch frequency and interface staying duration; and generating equipment adaptive feature vectors according to the data so as to describe terminal equipment display characteristics and user interaction preferences. And constructing an interface element dynamic layout model, and calculating the relative position and the size proportion of the interface component through the model according to the equipment adaptive feature vector. And monitoring a transverse and vertical screen switching event of the terminal equipment in real time, and once the event is monitored, triggering the interface element dynamic layout model to recalculate. And sending the recalculated interface component layout data to a rendering engine to complete the adaptive updating of the applet interface. According to the method, the user experience of the applet on different devices can be effectively improved, and the adaptability and flexibility of the applet to various terminal devices are enhanced.

The invention discloses a display panel and a display device, and relates to the technical field of display, the display panel comprises a substrate and a plurality of pixel circuit groups located on one side of the substrate, the plurality of pixel circuit groups are arranged in an array along a first direction and a second direction which are intersected, the pixel circuit group at least comprises a first pixel circuit, a second pixel circuit and a third pixel circuit; wherein the first pixel circuit and the second pixel circuit are in mirror symmetry along the second direction, so that the first pixel circuit and the second pixel circuit which are in mirror symmetry along the second direction can share part of via holes, the occupied space of the pixel circuits is saved, the pixel density of the display panel can be improved, and the resolution of the display panel is improved; the third pixel circuit is in non-mirror symmetry with the adjacent pixel circuit along the first direction, so that the pixel circuits of the sub-pixels with the same color have the same structure, the offset directions of key nodes of the pixel circuits of the sub-pixels with the same color due to process fluctuation are the same, and the display effect of the display panel can be improved.

The present invention discloses a method for intelligent identification and detection of seismic phases based on the TransUNet deep learning network. The original three-dimensional seismic data is sliced ​​to obtain the original image of the two-dimensional seismic data. The original image of the two-dimensional seismic data is encoded using a convolutional neural network and a Transformer encoder structure to obtain a seismic data encoding feature map, and then the feature map is upsampled to the size of the original seismic data, thereby realizing intelligent classification of seismic phases. The present invention extracts and encodes features of seismic data using a full convolutional neural network and a Transformer encoder, and uses a U‑Net upsampling structure to decode the encoded feature map to full pixel density to realize intelligent identification and detection of seismic phases, thereby improving the problems of low efficiency and over-reliance on experience in artificial seismic phase classification; using the innate self-attention mechanism of the Transformer and the perception of local details by the U‑Net convolutional neural network, TransUNet can take into account both local detail features and global features, and can be effectively applied to intelligent classification of seismic phases, effectively improving the efficiency and accuracy of seismic phase classification.

The utility model 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.

Example methods, systems and devices provide a display with a higher resolution than the native resolution of a light modulator used. Optical components direct first light on first light paths from a light source to a light modulator and direct second light on second light paths from the light source to the light modulator. Each of multiple controllable elements of the light modulator modulates the first light to produce first modulated light to exit the light modulator at a first angle, and modulates the second light to produce second modulated light to exit the light modulator at a second, different, angle. Another set of optical components focus the first and second modulated light on a target to display first and second sequences of image frames, respectively, in which corresponding pixels in corresponding image frames are shifted by less than a pixel pitch relative to each other.

The embodiment of the utility model provides a pixel circuit, a display panel and a display device thereof, relates to the technical field of display, and is used for improving the pixel density and resolution of the display panel. The pixel circuit comprises a driving sub-circuit and a gating sub-circuit. The driving sub-circuit is connected with the first node, the second node and the third node. And the driving sub-circuit is configured to generate a driving current signal according to the voltage of the first node and the third node in a light emitting stage, and transmit the driving current signal to the third node. The gating sub-circuit is connected with the third node. The gating sub-circuit is configured to connect a plurality of light-emitting devices and transmit the driving current signal from the third node to different light-emitting devices in different light-emitting stages. Wherein the driving sub-circuit comprises a first transistor, the gating sub-circuit comprises a second transistor, and a channel of at least one second transistor and a channel of the first transistor are located in different layers and are at least partially opposite to each other. The pixel circuit is used for the display panel.

A display substrate includes a main display area, a secondary display area and a transition area; the secondary display area includes an aperture region, a first peripheral region and a second peripheral region, at least part of the first peripheral region being located between the aperture region and the second peripheral region; the aperture region includes display sub-pixels; the first peripheral region includes display sub-pixels and first virtual sub-pixels; the second peripheral region includes display sub-pixels and second virtual sub-pixels; the density of the display sub-pixels of the aperture region, the density of the display sub-pixels of the first peripheral region and the density of the display sub-pixels of the second peripheral region are the same; at least part of the transition area is located between the main display area and the second peripheral region; the main display area and the transition area both includes display sub-pixels.