393 results about "Color shift" patented technology

This application relates to a display panel and a display device. The display panel includes an array substrate, a light-emitting layer, an isolation structure, and a touch layer. The light-emitting layer is located on one side of the array substrate and includes multiple light-emitting units, which in turn include several light-emitting unit groups. Each light-emitting unit group emits a single color of light, and each light-emitting unit group includes at least one light-emitting structure disposed along a first direction. The isolation structure is located on one side of the array substrate and includes an isolation opening, in which the light-emitting units are disposed. The touch layer includes touch traces disposed on the side of the isolation structure facing away from the array substrate. At least a portion of the orthographic projection of the touch traces in the thickness direction of the display panel is disposed around at least one light-emitting structure and is symmetrically arranged with respect to a first axis of symmetry passing through the centroid of the at least one light-emitting structure. The first axis of symmetry is parallel to the first direction. This application can effectively reduce the possibility of color shift.

The invention relates to an underwater image enhancement method based on wavelet Mama, which aims at the problems of color shift, low contrast ratio and fuzzy details of an underwater image, extracts shallow layer features of an underwater low-quality image, inputs the shallow layer features into a multi-scale coding network, and performs joint enhancement on low-frequency color information and high-frequency detail features by using a wavelet Mama unit. Global semantic features are obtained by combining down-sampling layer-by-layer compression, and global modeling of color offset correction and contrast enhancement is completed; the spatial resolution is recovered through up-sampling, and reconstruction and enhancement of texture details and color information are realized in combination with jump connection and a wavelet Mama unit; and finally, the features are mapped to an image domain and fused with input image residual errors, and an enhanced underwater image with natural color, clear texture and balanced contrast is generated. According to the method, frequency domain-space domain joint feature modeling is realized through the wavelet Mama unit, and the color authenticity, the structural definition and the detail perceptibility of the underwater image are remarkably improved.

The invention relates to the technical field of intelligent driving, and discloses a defogging embedded system and method for an intelligent driving vehicle-mounted camera, and the method comprises the steps: obtaining original image data collected by the vehicle-mounted camera, and analyzing the brightness distribution, color shift and texture features in an image; based on the image degradation feature information, performing preliminary enhancement processing on the image by adopting an edge guided filtering and brightness adaptive mapping algorithm to generate an initial enhanced image; carrying out fog distribution estimation on the initial enhanced image, carrying out detail restoration and color compensation in combination with a lightweight image reconstruction strategy, and dynamically improving the image quality through an iterative optimization mode; performing definition evaluation on the optimized image, and measuring the fuzzy degree change trend and the structural similarity; and in combination with the finally output clear image, performing target identification and feature extraction operation, and performing accuracy evaluation on an identification result. The method has the advantage of improving the definition of the intelligent driving image.

A display device including a pixel circuit is provided. The pixel circuit includes a first sub-pixel circuit, a second sub-pixel circuit, and a third sub-pixel circuit. The first sub-pixel circuit and the third sub-pixel circuit are separated by the second sub-pixel circuit. The pixel circuit further includes a first data line, a second data line which are separated from each other. A first gate terminal of a first driving transistor of the first sub-pixel circuit is electrically connected to a second gate terminal of a third driving transistor of the second sub-pixel circuit. A first terminal of a switch circuit of the second sub-pixel circuit is electrically connected to the first gate terminal of the first driving transistor of the first sub-pixel circuit. A second terminal of the switch circuit of the second sub-pixel circuit is electrically connected to the second data line.

The invention discloses a glasses coating quality detection method and system based on color shift analysis. According to the method, transmission spectrum data of the lens of the coated glasses is obtained, and color shift analysis is carried out to obtain color shift information of the lens. According to the information, collecting precision analysis is carried out, the reliability of detection accuracy is evaluated, and a detection reliability matrix is constructed. And further constructing a detection accuracy prediction model based on the matrix, and performing accuracy prediction on the coating quality by using real-time transmission spectrum data. And finally, optimizing an acquisition strategy of the transmission spectrum data according to a prediction result, and carrying out final quality detection. According to the method, color shift analysis and an accurate prediction model are introduced, so that the accuracy and reliability of quality detection of the coating film of the glasses are remarkably improved, human intervention is reduced, and the method is suitable for automatic quality monitoring and real-time detection in the production process of the glasses.

A display device may include a display panel which includes pixels, a data driver which provides data voltages corresponding to output image data to the pixels, and a data converter which generates a compensation grayscale from reference compensation values for compensating at least one selected from a color shift and a luminance shift corresponding to a temperature based on an input temperature, an input grayscale included in input image data, and an input luminance, and converts the input image data into the output image data based on the compensation grayscale.

The invention relates to the technical field of intelligent lighting control, and discloses a light color shift control method and system, and the method comprises the following steps: S1, receiving target color data and shift parameters through a user interaction interface; s2, acquiring an environment color temperature Tamb by using an environment light sensor, and monitoring an LED module junction temperature Tled through a PT1000 type temperature sensor; s3, calculating a color compensation parameter based on the offset parameter in the step S1 and the sensor data in the step S2; and S4, generating a PWM driving signal through an improved HSV-RGB bidirectional conversion model. By receiving the target color data and the offset parameters and collecting the environmental color temperature and the LED module junction temperature data, basic input and real-time state information are provided for color compensation calculation, so that the system can dynamically adjust the color parameters in combination with user requirements and environmental equipment states, and the pertinence and environmental adaptability of color control are improved.

The invention provides an embedded image enhancement method and system for a large-target-surface image sensor. According to the method, temperature gradient distribution and environment humidity data of a large-target-surface image sensor are collected, and an environment parameter matrix and a temperature noise mapping model are constructed in an associated mode; and correcting optical distortion of the incident light signal by using the liquid crystal modulator array, and outputting an original image. Then through a double-path module, a main path extracts noise features, and an auxiliary path separates color shift features caused by humidity; and verifying the physical consistency of the characteristics based on a thermodynamic equation and screening effective data. And finally, dynamically optimizing the image contrast, the dynamic range and the target details by the embedded processor, and outputting an enhanced image. Through environmental parameter modeling, dual-path feature separation and physical verification, temperature and humidity interference is effectively suppressed, and detail enhancement and color fidelity of the large-target-surface image sensor are improved.

A display panel (30) and a display apparatus (10). The display panel (30) comprises a color filter substrate (100), an electronic-paper layer (400) and an array substrate (500), wherein the array substrate (500), the electronic-paper layer (400) and the color filter substrate (100) are sequentially arranged. The color filter substrate (100) comprises a color filter base (110) and a color resist layer (200), wherein the color resist layer (200) is arranged on the color filter base (110), the color resist layer (200) comprises a plurality of color resists (210), the plurality of color resists (210) are spaced apart, a blank area (280) is arranged between two adjacent color resists (210), at least one optical channel (270) is arranged in each color resist (210), the optical channels (270) penetrate the color resist (210), and a portion of light passes through the optical channels (270) to irradiate the electronic-paper layer (400). By means of the design of the optical channels (270) of the color resist layer (200), the overall brightness of the display panel (30) is improved, and contrast ratio degradation and the occurrence of color shift of the display panel (30) are avoided.

The invention relates to a dynamic color cast compensation Demura method and system and a display screen, and belongs to the technical field of display. Comprising the following steps: collecting a white light channel picture, obtaining relative brightness data, calibrating the relative brightness data, and constructing a mapping function; according to the function, converting the relative brightness data to obtain first Lab data; obtaining a Lab data initial value of a to-be-compensated screen; calculating a color difference value according to the Lab data initial value and the first Lab data; performing visual perception weighted deviation conversion on the difference value to obtain color deviation; calculating a dynamic compensation weight according to the deviation; obtaining a color deviation evaluation index according to the weight and the color deviation; and generating second Lab data according to the evaluation index and the gradient vector of the color difference value, and performing inverse operation on the second Lab data to obtain a Demura compensation value. According to the invention, through joint compensation of brightness and chromaticity, chromaticity compensation missing is avoided, and meanwhile, through a dynamic compensation weight mechanism, noise amplification in a low-brightness interval is avoided, and the color uniformity of a display screen is improved.

The invention discloses an intelligent monitoring method for dangerous gas leakage based on gas cloud imaging, and relates to the field of data analysis, the method comprises the following steps: calculating a temperature anomaly index J, a gas diffusion velocity V, a color shift index RGB and a gas diffusion index L based on infrared gas cloud image data and optical gas cloud image data, and solving the problem that temperature fluctuation exists in a natural environment, and a gas diffusion index L cannot be obtained. Whether gas leakage occurs or not is judged only through a single temperature characteristic, and misjudgment is easily caused; the gas leakage degree is judged according to the leakage degree evaluation index K and the leakage degree threshold set, and the problems that the gas leakage degree cannot be quantified, and the gas leakage condition cannot be visually known are solved. According to the scheme, the accuracy and reliability of hazardous gas leakage detection are effectively improved.

The invention is suitable for the technical field of electric power line inspection, and provides an improved YOLO network-based electric power line metal corrosion detection and region segmentation method, which comprises the following steps of: aligning a collected visible light image and an infrared spectrum image at spatial positions; after carrying out defogging processing on the visible light image, judging whether the defogged image has a corrosion region or not based on the color shift feature and the texture distortion feature; if yes, inputting the visible light image and the infrared spectrum image into an improved YOLO-MA network for processing, and outputting the classification probability and confidence of the corrosion area; inputting the corrosion area with the classification probability and the confidence higher than a preset threshold value into a preset segmentation network, and determining a corrosion level corresponding to the corrosion area; and generating a visual report according to the corrosion level, and superposing the corrosion region bounding box, the segmentation mask and the corrosion level on the original image. The detection efficiency is improved while the omission ratio is reduced, and the real-time monitoring and maintenance requirements of complex industrial scenes are met.

The invention relates to a visual angle color cast correction method for a transparent display screen and related equipment, and the method comprises the following steps: carrying out the spectral data collection of a plurality of preset visual angle positions of the transparent display screen, and obtaining a visual angle spectral distribution matrix; performing color gamut space mapping on pixel units of the transparent display screen based on the view angle spectral distribution matrix to obtain a view angle dependent color shift feature map; performing color correction compensation calculation on the view-angle-dependent color offset feature map to obtain a multi-dimensional color offset compensation lookup table; performing pre-distortion processing on a driving signal of the transparent display screen based on the multi-dimensional color cast compensation lookup table to obtain a visual angle self-adaptive driving control signal; and controlling the transparent display screen to perform color cast correction based on the visual angle self-adaptive driving control signal, thereby solving the technical problems that the compensation effect is limited and even color distortion is aggravated under some extreme visual angles due to the fact that mutual optical interference among pixels is often ignored in the correction process in the prior art.

The invention relates to a display panel and a display device, and relates to the technical field of display, the display panel comprises pixel rows arranged along a first direction and pixel columns arranged along a second direction, and the pixel rows and the pixel columns comprise a plurality of sub-pixels; each sub-pixel comprises a light-emitting layer and a cathode layer, the cathode layer is located on one side of the light-emitting layer, and the cathode layer comprises cathode blocks; the sub-pixels comprise a first color sub-pixel and a second color sub-pixel, the cathode block corresponding to the first color sub-pixel is connected with the first signal line, the cathode block corresponding to the second color sub-pixel is connected with the second signal line, and the voltage of the first signal line is different from that of the second signal line. Therefore, through the patterning design of the cathode, the cathode voltage of the sub-pixels with different colors can be independently adjusted, the transmittance of the display panel can be improved, the power consumption is reduced, and the brightness uniformity and the Jinjin color cast are improved.

A golf ball has a core, a cover layer, and a color-shift material incorporated into at least one of the cover layer or a coating applied to the cover layer. The golf ball also has an alignment indicator that provides an intended target strike location on the golf ball. The color-shift material causes the golf ball to exhibit a localized color-shift effect upon application of pressure in the form of a strike by a golf club. The color-shift effect comprises a shift between a first color and a second color and measured as a deltaE of greater than 2 when the change of pressure is within a target range. The color-shift material and the alignment indicator provide feedback regarding an actual strike location relative to the intended target strike location.

The invention belongs to the technical field of image processing, and particularly relates to an image shadow removal method based on a double-branch network. The method comprises the following steps: acquiring a shadow image to be processed and a corresponding mask image, and preprocessing the shadow image and the mask image to obtain a shadow region image and a non-shadow region image; respectively sending the shadow region image and the non-shadow region image into a shadow removal branch network and an identical mapping branch network for processing to obtain a shadow removal region image and a mapping image; performing pixel-by-pixel addition on the shadow-removed area image and the mapping image to obtain a preliminary shadow-removed image; the image with the shadow removed preliminarily is sent to a color restoration module for color restoration, and a clear image with the shadow removed is obtained; according to the method, shadow removal can be effectively realized, the color shift problem in a shadow removal result can be alleviated, and the method has a good application prospect.

The invention provides a rendering method and device and a computer program product, and the method comprises the steps: at least taking a streamer starting point color and a streamer tail point color as streamer rendering parameters for independent configuration, enabling a streamer texture image not to be provided with a fixed color, and only setting the transparency value of a pixel point. The method comprises the following steps: for vertexes of a triangle obtained by performing triangle subdivision based on track points included in to-be-rendered track data, obtaining texture coordinates of the corresponding vertexes of the triangle through a streamer rendering parameter, a track distance associated with the vertexes of the triangle and a rendering time parameter; sampling on a streamer texture image with a known transparency value based on texture coordinates of vertexes of the triangle to obtain color shift weights of the corresponding vertexes of the triangle, and obtaining rendering colors of the corresponding vertexes of the triangle by using the color shift weights, a streamer starting point color and a streamer tail point color; even if the streamer texture image has no fixed color matching, the rendering color of the corresponding vertex of the triangle can be calculated.

The invention provides a physical guidance-based sparse coding-driven underwater image enhancement method, a program, equipment and a storage medium. The method comprises the following steps: constructing a physical guidance preprocessing method based on a Jaffe-McGammy model, and adaptively estimating an underwater transmission image and background light to realize preliminary degradation recovery; elastic regularization sparse coding is adopted, and through sparsity and smoothness combined constraint, salient structure information such as edges and textures of the image is effectively extracted, so that the image definition and the detail recovery capability are enhanced; cross-channel attention fusion is adopted, a multi-scale context modeling and channel interaction mechanism is introduced, and a physical degradation graph is combined for guidance, so that color consistency and semantic expression integrity between channels are remarkably improved, and the problems of color shift and information loss in an existing method are solved. According to the method, through joint optimization of multiple loss functions, the constructed underwater image enhancement network keeps the illumination accuracy, texture continuity and structural integrity of the image in multiple dimensions at the same time.

A pixel arrangement structure, a display panel, and a grayscale control method are related. In each pixel group of the pixel arrangement structure, a number of first type pixels is equal to a number of second type pixels. A number of high grayscale sub-pixels, a number of first low grayscale sub-pixels, a number of second low grayscale sub-pixels, and a number of third low grayscale sub-pixels are all equal. For each pixel group, a ratio of the high grayscale sub-pixels to the low grayscale sub-pixels is one to three to improve a display color shift.

A display apparatus includes a first conductive layer and a first conductive line arranged in a first pixel area; a second conductive layer and a second conductive line arranged in a second pixel area; a first pixel electrode in which a first emission area is defined; a second pixel electrode in which a second emission area is defined. A first hole and a second hole are defined in a first insulating layer. The first conductive layer and the first conductive line electrically contact each other in the first hole. The second conductive layer and the second conductive line electrically contact each other in the second hole. The first emission area overlaps the first hole in a plan view. The second emission area does not overlap the second hole in a plan view.

Systems and methods for color correction of images are described herein. An example method includes receiving, at a first time and a second time: first and second image data from an imaging device of a medical imaging system captured during a medical procedure; and first and second values of an operating parameter of a light source of the medical imaging system, wherein a color of light emitted from the light source is shifted based on the values of the operating parameter. A first color shift is determined based on the first value, and a color correction function is applied to the first image data to compensate for the first color shift to generate first color corrected image data. Second color-corrected image data is generated by determining a second color shift based on the second value and applying a color correction function to the second image data to compensate for the second color shift.

A composition including a first color shifting pigment flake population having a first D50 particle size; and a second color shifting pigment flake population having a second D50 particle size that is different from the first D50 particle size, wherein the first color shifting pigment flake population and the second color shifting pigment flake population have a similar face color and color shift is disclosed. An article including the composition is included. A method of making the composition and a method of making the article are also disclosed.

The invention discloses a display substrate and a display device, and the display substrate comprises a plurality of light-emitting devices which are distributed in different sub-pixel regions at intervals, and the adjacent light-emitting devices are separated through a pixel definition layer; the light-emitting device comprises a first electrode, a light-emitting function layer and a second electrode which are sequentially arranged on the substrate in the direction away from the substrate. The light-emitting functional layer extends to the surface of one side, far away from the substrate, of the pixel definition layer; an area, corresponding to a contact position of the pixel definition layer and the first electrode, of the light-emitting functional layer is a curved surface, and the slope angle of the curved surface is theta; when the display substrate displays white light at a 255 gray scale, each light-emitting device satisfies the following formula: [delta] u'v '(horizon)-[delta] u'v' (vertical) / 0.004 < = 1 (1) [theta] (horizon)-[theta] (vertical) < = 10 degrees (2). The color cast of the display substrate at different angles is small, and the color cast at different angles in the horizontal direction and the vertical direction is closer.

The invention discloses a preparation method and application of a protective film with an anti-blue-light function, and belongs to the technical field of optical thin films, and the protective film with the anti-blue-light function is obtained by coating the upper surface of a transparent substrate with a wear-resistant layer, coating the lower surface of the transparent substrate with an anti-blue-light layer, coating the surface of the anti-blue-light layer with adhesive layer slurry and pasting a release film. The blue light absorbent formed by mixing aluminum-doped zinc oxide, N-doped titanium dioxide and diosgenin is added into the slurry of the blue light preventing layer in the protective film, the adopted raw materials are safe and harmless, overlapping and combination of light absorption ranges of the three materials are achieved by means of doping and mixing, harmful blue light is absorbed, meanwhile, beneficial blue light is reserved, and color cast is weakened. The protective film prepared by the invention has an excellent anti-blue light effect, good light transmittance and no color cast problem.

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a substrate, a plurality of light-emitting units, a touch grid layer and a heightening part. Through the touch grid layer and the heightening part, the large-view-angle light-emitting amount of the side, close to the heightening part, of the first light-emitting unit can be reduced, so that the large-view-angle light-emitting amounts of the first light-emitting device in different directions are kept consistent as much as possible, the light-emitting uniformity of the display panel can be improved, and the color cast problem of the display panel is solved.

A color image forming apparatus includes a photoconductor on which an image is formed; an optical writing device to expose the photoconductor with light, the optical writing device including: a light emitter to emit light; a deflector including a multifaceted reflector rotationally driven to deflect the light emitted from the light emitter to scan the photoconductor with the light in a scanning direction; a synchronization detector to detect a write start timing of the light to be irradiated onto the photoconductor from the deflector; circuitry configured to: control the light emitter to emit light; and correct a detection shift of the synchronization detector generated by a fluctuation of a light amount of the light incident on the synchronization detector; and adjust the write start timing to correct a color shift.

To provide a technique advantageous for reducing visibility of color shift.SOLUTION: A light-emitting device includes, on a principal surface of a substrate, a luminous layer and a plurality of light-emitting elements having a light extraction structure disposed to cover the luminous layer. The plurality of light-emitting elements include a red light-emitting element emitting red light, a green light-emitting element emitting green light and a blue light-emitting element emitting blue light. The light-emitting device further has a resonator structure according to each luminous color. When a normal direction resonant peak wavelength of the principal surface in the resonator structure of the green light-emitting element is denoted by λon_g [nm], and a peak wavelength of emission spectrum of the green light-emitting element is denoted by λg [nm], and when a normal direction resonant peak wavelength of the principal surface in the resonator structure of the blue light-emitting element is denoted by λon_b [nm], and a peak wavelength of the emission spectrum of the blue light-emitting element is denoted by λb [nm], Δg=λon_g-λg>0 [nm], Δb=λon_b-λb>0 [nm] and Δg-Δb≥0 [nm] are satisfied.SELECTED DRAWING: Figure 1

A display may include light-emitting diode (LED) pixels. Each LED pixel may include both narrow-viewing-angle subpixels and wide-viewing-angle subpixels. Each LED pixel may include driver circuits that each drive a narrow-viewing-angle subpixel and a wide-viewing-angle subpixel of the same color. An emission logic circuit may direct a drive current from a drive circuit to one or both of a narrow-viewing-angle subpixel and a wide-viewing-angle subpixel of the same color. To correct for off-axis color shift, a pixel may include a green subpixel with two or more overlapping microlenses, a blue subpixel with two or more overlapping microlenses, and a red subpixel without any overlapping microlenses.

A method is provided for manufacturing a decorative sheet for decorative panels. The method may involve providing a first printed substrate having a printed color patch having at least one printed color spot. The first printed substrate may be subjected to at least a predetermined operation that causes a color shift of the color spot. A first color coordinate set may be determined for the color spot. A first ICC profile may be determined using the first color coordinate set. A first master image may be visualized on a display device using the first ICC profile. An image processing operation may be performed on the first master image to obtain a second master image during the visualization. The second master image may be printed on a second substrate to obtain the decorative layer.

The invention provides a vehicle all-round view image generation method and device, a medium and equipment. The method comprises the following steps: converting a target video stream transmitted by a target camera into a top view video stream; performing image correction processing on the current frame image; carrying out image stabilization processing on the current frame image after image correction processing by adopting an image stabilization algorithm; performing color cast and brightness consistency correction on the current frame image after image stabilization processing; and according to the target mask image, splicing processing is performed on the current frame image after consistency correction so as to obtain a current spliced image, and the target mask image is a mask image corresponding to the target camera. The finally generated surround-view image has the characteristics of uniform color and uniform brightness, can adapt to airport environment requirements under different illumination conditions, provides clear and stable surround-view images for drivers, and significantly improves the driving safety and operation convenience of airport special vehicles in a complex environment.