18results about How to "High color reproduction" patented technology

The invention discloses a circular ink supply intelligent control method and system based on a UV printer, and the method comprises the steps: S1, collecting a digital image file of a to-be-printed task, and obtaining the consumption prediction data of ink of each color through the analysis of pixel information; s2, based on the consumption prediction data, obtaining a flow demand through a Poiseuille law fluid dynamic conversion algorithm, and based on the flow demand, constructing an ink supply control regression model to carry out ink supply coupling feed-forward calculation to obtain a feed-forward control parameter set; s3, constructing a self-learning database for input comparison, and adjusting and optimizing the feedforward control parameter set based on unscented Kalman filtering according to the historical control effect deviation to generate a final control instruction; and S4, intelligent control over circulating ink supply is conducted on an execution mechanism of the circulating ink supply system based on the final control instruction, the color rendition degree and consistency of a printed picture are improved, and the operation cost is reduced while the ink supply quality is guaranteed.

The utility model relates to the technical field of LED display structures, in particular to an efficient heat dissipation LED display structure which comprises a base material layer, a chip layer, an optical adjustment layer and a packaging protection layer, the base material layer is arranged at the bottommost layer, the chip layer is arranged at the upper end of the base material layer, the optical adjustment layer is arranged at the upper end of the chip layer, and the packaging protection layer is arranged at the lower end of the optical adjustment layer. The packaging protection layer is arranged at the upper end of the optical adjustment layer; the chip layer and the base material layer are connected in a bonding mode, and a gap position between the chip layer and the base material layer is filled with a reflective glue filling layer; the optical adjustment layer is attached to the surface of the chip layer; and the packaging protection layer is cured on the surface of the optical adjustment layer.

The invention discloses a color high contrast processing algorithm for four-color electronic paper, and relates to the technical field of electronic paper display technology and image processing, and the method comprises the specific steps: firstly, carrying out feature extraction, converting an original RGB image to an HSV space, carrying out the statistics of the pixel proportion of a brightness interval, screening red and yellow pixels, and calculating the feature and the proportion of four colors; a dynamic clustering center is generated; performing weighted clustering mapping to generate an intermediate image; enhancing the saturation and boundary contrast of the adaptive image in a linkage manner; and finally, modular adaptive output: selecting scheme optimization data, converting the scheme optimization data into a 2-bit format, and outputting the two-bit format after verification. According to the method, through multi-dimensional feature extraction and dynamic clustering center generation, accurate color mapping is realized, and the color rendition degree and comfort degree are improved; and through multi-factor linkage enhancement and modular adaptive output design, the display effect and hardware adaptability are considered, the detail expressive force is enhanced, the integration process is simplified, reliable data transmission is guaranteed, and the application adaptation and display quality is improved.

The invention provides a cloth pattern printing device based on inkjet transfer printing. The invention discloses a cloth pattern printing device based on inkjet transfer printing. The cloth pattern printing device comprises two machine frame inner plates which are vertically arranged and mutually symmetrical. According to the cloth pattern printing device based on jet drawing transfer printing, by arranging the transfer printing cylinder, when the device is used, cloth raw materials and thermal dye sublimation transfer printing paper printed with patterns are fed into the device together, and the cloth and the thermal dye sublimation transfer printing paper are heated and extruded through the transfer printing cylinder; patterns on the transfer paper are transferred to the surface of the cloth in a thermal sublimation mode, the patterns transferred in the mode are high in definition, fine, extremely high in color rendition degree and saturation degree and capable of perfectly presenting fine effects such as gradual change and complex images, dye and fibers are integrated, a surface glue layer does not exist, and the fabric is not prone to falling off. The original soft hand feeling and good air permeability of the cloth can be completely reserved, and meanwhile the finished product is resistant to washing, friction and solarization, not prone to fading, cracking or peeling and outstanding in durability.

This invention discloses an underwater image enhancement method based on cascaded correction and multi-scale fusion, mainly including the following steps: (1) establishing an underwater image dataset to form a first dataset; (2) constructing an underwater image enhancement model based on cascaded correction and multi-scale fusion; (3) inputting the first dataset into the model for image enhancement; (4) evaluating the enhanced underwater image to meet the index requirements, thus obtaining the final underwater image enhancement model based on cascaded correction and multi-scale fusion. Compared with the prior art, the underwater image enhancement method disclosed in this invention significantly enhances the clarity and color fidelity of underwater images, effectively improving the visual quality of underwater images.

The invention discloses a near monochromatic light source color-mixed white light achromatic high-quality imaging method, and belongs to the technical field of optical imaging and image processing. Comprising the following steps: S1, configuring a red, green and blue near-monochromatic mixed white light source; s2, collecting standard color card data and white standard area reference data under a xenon lamp and mixed-color white light; s3, correcting color deviation in mixed color white light source imaging based on the color card data and the reference data; s4, by taking the green channel as a reference, adjusting and synchronously correcting the position offset and intensity calibration of the red and blue channels; and S5, based on a Sobel operator, enhancing the image contrast. By adopting the near monochromatic light source mixed color white light achromatic high-quality imaging method, the problems of near monochromatic light imaging chromatic aberration and channel position offset are solved, and achromatic, high-definition and high-color-rendition high-quality imaging is realized.

The application provides a planar color hot stamping equipment based on laser transfer printing, which comprises a control system, a laser, an XY two-dimensional scanning galvanometer system, a feeding unit and a three-primary-color hot stamping film; the three-primary-color hot stamping film comprises a carrier substrate and a three-primary-color pigment layer coated on the carrier substrate; the carrier substrate is required to have laser transparency and non-absorption; the three-primary-color pigment layer comprises a red color region, a green color region and a blue color region, and each color region is coated with a thin planar film formed by the color coating. The application can realize pigment deposition at any position of the object to be printed through the scanning of the XY two-dimensional scanning galvanometer system, and can conveniently realize large-format color hot stamping; and through the regulation and control of process parameters such as laser pulse energy, pulse number and the like, different amounts of three-primary-color pigment jetting mixing can be realized, and the color reproduction degree is high. The application also simultaneously provides a planar color hot stamping method based on laser transfer printing.

The invention provides a parameter calibration method, computer equipment and a storage medium, and the parameter calibration method comprises the steps: obtaining a plurality of image sets under the same target color temperature, the plurality of image sets being image sets corresponding to a plurality of illumination intensities; determining a first parameter pair corresponding to each image in each image set to obtain a plurality of first sets; determining a second parameter pair in each first set in the plurality of first sets to obtain a plurality of second parameter pairs; the second parameter pair is the first parameter pair with the minimum chromatic aberration in the first set; and screening out a target parameter pair corresponding to a target color temperature from the plurality of second parameter pairs, and calibrating camera parameters under the target color temperature based on the target parameter pair. According to the scheme, the multi-illumination-intensity image set is combined under the same target color temperature, white balance and color correction parameter selection are optimized, and the color consistency and precision of an image processing link are improved.

A display device according to an example of the present disclosure includes a substrate in which a light emitting region and a non-light emitting region are divided and a plurality of sub-pixels are defined, an insulating layer disposed above the substrate, a first electrode disposed in each of the plurality of sub-pixels, a bank disposed on the insulating layer and exposing the first electrode through an opening thereof, an organic layer disposed on the first electrode, and a second electrode disposed on the organic layer. The bank includes an exposed side obtained by removing one region between the plurality of sub-pixels and an undercut structure inward from a lower end of the exposed side. The bank further includes an exposed side obtained by removing one region between the plurality of sub-pixels and a trench structure obtained by removing a portion of a thickness of the insulating layer.

The invention discloses a laser projection device and a wearable device. The laser projection device comprises a laser display assembly; a light combining assembly; the laser display assembly comprises three groups of microcavity laser arrays, each group of microcavity laser array comprises a plurality of laser units, and the laser units in the three groups of microcavity laser arrays have a corresponding relation. The three groups of microcavity laser arrays are respectively used for generating a green laser image, a blue laser image and a red laser image; the light combining assembly is used for combining laser beams emitted by the laser units with corresponding relations to one pixel point, so that the green laser image, the blue laser image and the red laser image are combined into a target laser image; the controller is electrically connected with the laser display assembly, and the controller is used for receiving the driving signal and controlling the display parameter of each laser unit according to the driving signal; and the lens is arranged on the light emitting path of the light combining assembly, receives the target laser image emitted by the light combining assembly and emits a projection image.

This invention discloses an underwater concrete defect image recognition method and system based on a multi-level neural network cascade, belonging to the fields of underwater structure inspection and computer vision technology. It addresses the problems of limited sample size and class imbalance in marine concrete defects, ultimately achieving efficient, accurate, and automated identification of concrete defects in complex marine environments, meeting the practical needs of underwater structure operation and maintenance in marine engineering. The method includes: Step 1, acquiring image data of the underwater concrete structure; Step 2, inputting the image data into a trained improved WaterNet model for image enhancement processing; Step 3, inputting the enhanced image into a trained improved U-Net model for pixel-level segmentation to obtain the concrete defect recognition result; Step 4, annotating the defect area according to the recognition result and outputting the annotated image.

This utility model discloses a screen structure and a high-gain white screen, belonging to the field of projection display technology. The screen structure includes two substrate layers, with a barrier layer bonded between the two substrate layers via an adhesive layer. The substrate layers, adhesive layer, and barrier layer have different refractive indices. The high-gain white screen includes a protective layer, a diffusion layer, and the aforementioned screen structure, arranged sequentially from the incident surface to the back surface. By utilizing the difference in refractive indices between the substrate layer, adhesive layer, and barrier layer, an optical effect similar to mother-of-pearl is created, reducing light penetration and enhancing light reflection and scattering. This improves detail rendering, reduces the loss of dark areas, enhances resistance to external light interference, reduces contrast, reduces color saturation distortion, reduces light loss during propagation, improves overall brightness uniformity, ensures full presentation of high-resolution signal details, and is compatible with more projection devices.

This invention provides a 60mm image field fixed-focus optical system, optical imaging method, device, and medium, comprising a first lens group, a second lens group, an aperture stop, a third lens group, a fourth lens group, and a fifth lens group arranged sequentially along the optical axis from the object side to the image side: the first lens group is used to diverge the incident light beam and correct off-axis aberrations; the second lens group is used to converge the light beam emitted through the first lens group and correct spherical aberration; the third lens group is used to balance coma and astigmatism of the optical system; the fourth lens group is used to share the overall positive refractive power of the optical system and correct field curvature; and the fifth lens group is used to correct distortion and chromatic aberration of the optical system. The optical system has a focal length of 60mm, an aperture of F / 4, and a maximum image plane diameter of not less than 60mm, thereby solving the problem that existing linear array lenses and large-format area array lenses cannot be used interchangeably at the same workstation, causing users to need to change lenses when switching between 16K linear array and area array imaging schemes, increasing system costs and debugging complexity.

The present application provides a kind of red pixel with colored photosensitive resin composition, and the color filter and display device manufactured using it, the red pixel with colored photosensitive resin composition includes (A) colorant, (B) alkali-soluble resin, (C) photopolymerizable compound, (D) photopolymerization initiator and (E) solvent, the (A) colorant includes C.I.Pigment Red 177, C.I.Pigment Orange 64 and C.I.Pigment Violet 19, the content of C.I.Pigment Violet 19 is 1.2% to 4.8% relative to the total weight of red pixel with colored photosensitive resin composition solid component.The red pixel with colored photosensitive resin composition of the present application provides excellent color strength, so as to achieve the effect of high color reproduction and excellent brightness.

This invention provides a method and system for processing book edge relief. The method includes: converting a preset book edge planar image into a three-dimensional depth map containing depth information; creating a three-dimensional relief model of the book edge based on the three-dimensional depth map; generating an engraving scheme based on the three-dimensional relief model, the engraving scheme including tool path, feed rate, step distance, and depth of cut; optimizing the engraving scheme according to the paper characteristics of the book; mechanically engraving the book edge according to the optimized engraving scheme; and inkjet coloring the mechanically engraved book edge to form an relief pattern with a three-dimensional visual effect. In this invention, by mechanically engraving the book edge, a book edge relief with controllable depth, sharp edges, and a smooth and delicate surface can be formed, which is beneficial for the accurate registration and color reproduction of subsequent inkjet printing, completely avoiding the defects of laser edge burning and insufficient layering of mechanical imprinting, and enabling the mass production of high-quality book edge decorations.

The utility model relates to the field of decorative stickers, and discloses an easy-to-paste decorative sticker, which comprises a surface layer and bottom paper, the surface layer is connected with the bottom paper through an adhesive, a bottom paper extending part is integrally formed at the corner of the bottom paper, a tearable extending part is connected to the corner of the surface layer through a dotted line adding process, and the bottom paper extending part is connected with the surface layer through an adhesive. The tearable extension part and the bottom paper extension part are staggered, and the bottom paper extension part integrally formed at the corner of the bottom paper provides a clear and easy-to-grasp acting point for a user. When a user tears the backing paper, the user can easily exert force and accurately control the tearing force and direction, the risk that the sticker is wrinkled or damaged due to improper tearing is greatly reduced, the operation success rate is increased, and time and resources are saved.

The multispectral image module provided by the invention comprises a multispectral filtering module, a condensation module, an exposure control module, a photoelectric conversion module, an environment adaptation module and a data output module, the multispectral filtering module is used for collecting multispectral data; the light condensation module is used for carrying out light condensation processing on the received multispectral data; the exposure control module is used for controlling the exposure duration of the multispectral image module within a preset range; the photoelectric conversion module is used for converting the condensation data into electric signal data; and the environment adaptation module is used for acquiring the real-time temperature of the multispectral filtering module and calibrating the electric signal data according to the exposure duration and the real-time temperature. Compared with the prior art, the multi-spectral image module provided by the invention has the advantages that the wave band can cover 400-1700nm, so that better color rendition and substance identification are realized, spectral drift can be adaptively adjusted according to the environment temperature, the imaging effect is better, and the multi-spectral image module can adapt to more use scenes.

This invention relates to the field of evidence recording technology and discloses a wide dynamic range anti-shake police-use color low-light night vision high-definition evidence collection device, aiming to address the shortcomings of existing technologies in terms of general color clarity reproduction of images under night vision conditions. This invention significantly improves image clarity, color reproduction, and dynamic range under nighttime and complex lighting conditions through a color low-light night vision imaging module; it also utilizes structures such as horizontal and vertical rails and rectangular sliders, along with passive damping components like elastic ropes, to construct a graded anti-shake system that passively absorbs high-frequency small-amplitude vibrations and actively compensates for low-frequency large-amplitude vibrations; combined with single triaxial accelerometer acquisition and auxiliary algorithms, it achieves omnidirectional precise suppression of vertical, horizontal, and diagonal vibrations, ensuring the spatial stability of the evidence recording device, improving the clarity of evidence recordings, and adapting to the characteristics of evidence collection environments.