125results about How to "High color fidelity" patented technology

In one embodiment, a surface-mount device comprises a casing having opposed, first and second main surfaces, side surfaces, and end surfaces. A lead frame partially encased by the casing comprises (1) an electrically conductive LED chip carrier part having a surface carrying a linear array of three LEDs adapted to be energized to produce in combination a substantially full range of colors, each LED having a first electrical terminal and a second electrical terminal, the first terminal of each of the three LEDs being electrically and thermally coupled to the chip carrying surface of the chip carrier part; and (2) three electrically conductive connection parts separate from the chip carrier part, each of the three connection parts having a connection pad, the second terminal of each of the three LEDs being electrically coupled to the connection pad of a corresponding one of the three connection parts with a single wire bond. The linear array of LEDs extends in a first direction, and each of the chip carrier part and three connection parts has a lead. The leads are disposed in parallel relationship with each other and extend through the end surfaces of the casing in a second direction, the second direction being orthogonal to the first direction. An array of the surface-mount devices may be used in an LED display such as an indoor LED screen.

The present invention provides a color imaging system and a method to capture an accurate color image by use of a tunable filter tunable between two states and a color detector that records the light transmitted through the filter when the filter is in the first state and then in the second state.

A method for deriving a reverse model look-up table whose entries represent device dependent colors as a function of device independent colors, based on a forward model look-up table whose entries represent device independent colors obtained in response to printout of corresponding device dependent colors. For each device independent target color, a binary search of the forward model look-up table is performed so as to locate a cell that contains the device independent target color. The grid points from the forward model look-up table that define the cell are interpolated so as to obtain device dependent colors corresponding to the device independent target color. The device dependent color is stored at the grid point for the reverse model look-up table at a position corresponding to the device independent target color.

An instrument and related process for measuring color, shade, gloss, shape and / or translucence of a tooth. First, the instrument uses searchlight illumination to illuminate a tooth with constant irradiance. Second, the instrument uses colorimetric imaging to collect time-separated frames of different wavelengths of light reflected from a tooth and to combine those frames into a color image. Third, the instrument includes a sanitary shield to establish a reference color and a predetermined distance to a target tooth. Fourth, the instrument provides line-of-sight viewing so an operator may simultaneously view a display of the image on the instrument and the object being measured. Fifth, the instrument is impervious to pollutants because it incorporates a sealed measurement window. Sixth, optical measurements of a tooth taken by a dentist are compared to optical measurements of a prosthetic restoration for that tooth to confirm satisfactory matching of optical characteristics of the tooth and restoration.

An automated method of improving digital color images at high speed, which supports pipe-lining and has very little memory requirements, and is therefore specially suitable for on-the-fly processing of real time video, as well as for processing of large batches of images without the need of human intervention. The method includes a novel dynamic range adaptation scheme that operates on the norm of the image, which is suitable as is for gray-scale images. For, color images, a simple color reconstruction stage is added that maintains optimal color fidelity.

A product and process for laundering delicate or dry-clean only garments in a washing machine, such as a conventional home washing machine. The process may utilize a garment container, such as a flexible wrap to protect the garments. The process also includes at least one cleaning composition specially formulated for delicate garments. The cleaning composition(s) can be in a number of suitable forms, and can be introduced into the process in a number of different manners. The products used in the process may be provided in the form of a kit. The kit may also include a pretreatment applicator.

The invention belongs to the technical field of image enhancement and in particular relates to a method, a device and a system for image enhancement based on a YCbCr color space. The method comprises the steps of extracting the luminance component Y in an original image according to the input original image, performing median filtering on the obtained luminance component Y and then performing normalization processing to obtain a normalized image Ym, calculating the average value avgYm of the normalized image according to Ym and judging the measure of the fog concentration of the original image according to the range of avgYm, performing MSR processing and DCP processing on the original image to obtain corresponding processed images Y1 and Y2, putting Y1 and Y2 into a formula X=aY1+bY2 to calculate an image X after fusion processing, and performing automatic contrast control optimization on the image X after the fusion processing to obtain an optimized image, wherein a and b in the formula are fusion coefficients. The method for the image enhancement based on the YCbCr color space is capable of effectively eliminating the halo and over-enhancement phenomena, and therefore, the stability and quality of the output image can be improved.

A method for enhancing color fidelity in multi-reproduction, includes scanning an image to be reproduced, wherein the image contains an invisible digital watermark including color information; decoding the color information contained in the watermark; comparing the decoded color information with the scanned image; generating a correction table from the differences between the decoded color information and the scanned image; and performing color correction on the scanned image using the correction table. This method confines the color error to one generation, even when copies go through multiple reproduction.

The invention discloses a display device. The display device comprises a substrate, an organic light-emitting diode and a light path adjustment layer, wherein the light path adjustment layer is arranged at one side, near to or far away from the substrate, of the organic light-emitting diode. An original light ray propagation path of light emitted from the diode can be changed after adjustment of an adjustment unit on the light path adjustment layer, so that the light giving-out angle of a pixel is adjusted, the angle of the light ray, received by a human eye, of each region in the display device trends to be consistent, the display device is enabled to have relatively good observation visual angle in each region, the visual angle consistency of the display device is improved, the color fidelity of the display device is improved, the brightness uniformity of the display device is improved, and the display performance of the display device is improved.

A method for calibrating multi-section Gamma curve includes dividing Gamma curve to be three parts of dark grey level part and intermediate part as well as bright grey level part according to different scope of grey level value, setting coefficient of Gamma curve at dark grey level part to be 2.0-2.4 and coefficient of Gamma curve at bright grey level part to be 1.5-1.9, smoothly transiting dark grey level part to be bright grey level part in linear way.

The invention discloses an enhanced display method for color high dynamic range image. The enhanced display method for color high dynamic range image comprises the following steps: executing the nonlinearity correction for the RGB image, building the color image brightness model and extracting the brightness information, building color image chroma model and extracting the chroma information, executing the Retinex filtering operation to the brightness, combining the new brightness with the chroma information and reducing into the RGB image. The method selects the suitable brightness and color model for improving the gray level distribution of the result image and effectively reducing the color distortion problem in the result image, the information included in the high dynamic range image is well recovered by the Retinex filtering operation. The enhanced display method for color high dynamic range image is used for the image enhanced processing unit of the digital camera with HDR function, field surveillance camera and other image collecting device and for the transform processing process for displaying high dynamic range image on the low dynamic range device. The brightness and chroma model of the method is simple and practical, the image is displayed in enhanced mode and the color is kept without distortion.

Systems and methods for generating a three-dimensionally perceived image from a stereo endoscope by at least one viewer include an autostereoscopic display having a left projector and a right projector that project corresponding left and right images received from corresponding left and right cameras of the stereo endoscope onto a reflective holographic optical element that redirects light from the left projector to a left viewing zone for a left eye and redirects light from the right projector to a right viewing zone for a right eye of a viewer to create a three-dimensionally perceived image without glasses or optical headgear.

A method for enhancing color fidelity in multi-reproduction, includes scanning an image to be reproduced, wherein the image contains an invisible digital watermark including color information; decoding the color information contained in the watermark; comparing the decoded color information with the scanned image; generating a correction table from the differences between the decoded color information and the scanned image; and performing color correction on the scanned image using the correction table. This method confines the color error to one generation, even when copies go through multiple reproduction.

The present invention relates to fabric care methods for restoring and / or rejuvenating color of worn, faded fabric, by applying to said fabric a fabric color care composition which comprises: water soluble and / or water dispersible polymers; surfactant capable of forming a bilayer structure; and mixtures thereof. Optionally, the composition can contain other ingredients to provide additionally fabric care benefits, and / or to improve performance and formulatability. The composition is preferably applied as small particle size droplets, especially from spray container that preferably are in association with a set of instructions for use.

The invention discloses a TFT-LCD panel, a color film substrate and a manufacturing method thereof, and the color film substrate comprises a transparent substrate and R, B and B resins, and the thicknesses of the R, the G and the B resins are sequentially gradually increased. By regulating the thicknesses of the R, the G and the B resins, the thickness of a liquid crystal layer in R, G and B pigments is changed, thereby leading the transmittances of the R, the G and the B pigments to be as close as possible; when a liquid crystal is driven by driving voltage preset in a program, the color which is closest to the theoretical gray value through the R, the G and the B pigments can be obtained, the degree of realism of the color can be improved, and the image quality of a liquid crystal display device can be improved.

The present invention belongs to the field of screw display technology. The preparation process of plasticized fexible high-brightness nano projection display screen material uses main material, plastcizer, nano powder brightnessing agent and initiator as material and includes mixing the main material and nano powder, adding brightneing agent and initiator at certain temperature for polymerization, filling the initiated polymerizing material into some mold, fast heating for violent polymerization, cooling in the reactor and demolding. The projection display screen material is flexible and windable and has high brightness, high resolution, high color fidelity and many other advantages and thus wide application foreground.

The invention discloses a quantum dot fluorescent material, which is prepared from the following raw materials of: by weight, 0.01-35 parts of a fluorescent material, 60-90 parts of a resin, and 2-35 parts of a filling material, wherein the fluorescent material comprises quantum dots or a compound of quantum dot and non-quantum dot fluorescent materials. Correspondingly, the invention discloses a preparation method of the above quantum dot fluorescent material. In addition, the invention also discloses a LED fill / flash lamp, which is prepared by steps of: coating the quantum dot fluorescent material on the surface of an unpacked LED chip, curing and packaging. According to the invention, the quantum dot fluorescent material and the LED fill / flash lamp prepared by the utilization of the quantum dot fluorescent material have characteristics of high color rendering index, low color temperature and strong luminous efficiency. By the adoption of the material and the lamp, color trueness of images acquired by image acquisition equipment can be substantially raised.

A four-color ink set capable of printing an expanded color gamut has a cyan ink that prints on a reference substrate with CIELAB colorimetric aim values of L*=54, a*=−41, and b*=−45, within a ΔE*ab≦8; a magenta ink that prints on the reference substrate with CIELAB colorimetric aim values of L*=52, a*=79, and b*=−9, within a ΔE*ab≦8; a yellow ink that prints on the reference substrate with CIELAB colorimetric aim values of L*=90, a*=−7, and b*=102, within a ΔE*ab≦10; and a black ink. Obtaining a profile for the expanded gamut ink set, for example an International Color Consortium (ICC) profile, that relates tone values for the ink set to colorimetric values for the printed ink allows the printer to obtain the maximum benefit of the expanded color gamut. The profile for the ink set is applied in a color separation process prior to printing the image on press.

The invention discloses a degraded image restoration method which comprises the steps of: obtaining a degraded image; establishing a mathematical model of the degraded image with respect to an atmosphere covering layer; obtaining an estimation matrix of the atmosphere covering layer for the degraded image by using singular value decomposition according to the mathematical model; calculating the atmosphere covering layer according to the estimation matrix; selecting an atmosphere optical matrix, operating to obtain a transmission coefficient matrix of the atmosphere covering layer; and solving a restored image according to the atmosphere covering layer and the transmission coefficient matrix. The mathematical model established in the degraded image restoration method includes a variable of the atmosphere covering layer, more accurate atmosphere covering layer and transmission coefficient are obtained through optimization calculation, and the restored image can have higher contrast. Whitening balance, tone mapping and gamma correction technologies are not used, but the degraded image restoration method has better local detail restoration effect on the degraded image, and better color fidelity and definition of a processing result. The invention also provides a degraded image restoration system.

A method for correcting image data, in particular for colour correction and cross-talk reduction of image data obtained by an image sensor comprising image pixels (R, G, B) and non-image pixels (F), the image pixels (R,G,B) being overlaid with a colour filter array (CFA) and having a different spectral sensitivity than the non-image pixels, comprises determining a set of colour components (rold, gold, bold) for the image pixels (R,G,B) based on raw image data (rraw, graw, braw) read only from the image pixels (R,G,B) of the image sensor (10); correcting the set of colour components of non-direct neighbours of the non-image pixels (F) by means of a first colour correction matrix (CCM1); and correcting the set of colour components of direct neighbours of the non-image pixels by means of a second colour correction matrix (CCM2) different from the first colour correction matrix. An image sensor (10) and an auto-focus camera using same are also disclosed.

An image processing method, system and device are disclosed. In the method, sensor responses for an input image are estimated, the sensor responses including sensor responses for cone sensors including a first cone sensor set and a second, different, cone sensor set. In dependence on the sensor responses, a transform mapping for application to a source image is determined to generate a modified image.

Systems and methods for creating an autostereoscopic display include a holographic optical element (HOE) recorded using coherent light divided into diverging reference and object beams that illuminate the HOE from opposite sides. The object beam passes through first and second diffusers with one diffuser being a directional diffuser to more uniformly illuminate the HOE. Optic elements may be used to more closely match beam diameters and / or profiles of the recording wavelengths. Baffles may be positioned on opposite sides of the HOE with openings aligned proximate the reference beam and object beam paths, respectively, to reduce stray reflections and provide ambient air flow attenuation or damping. One or more edges of the HOE are masked to reduce or prevent stray light from entering and reflecting within the HOE during recording.

The invention discloses an image demisting method based on sky segmentation and transmissivity adaptive correction, an iterative threshold segmentation algorithm is used to divide the fogged image into sky region and non-sky region, and the brightness of the segmented sky region is adjusted. A dark channel prior algorithm based on fast bilateral filtering and cubic logarithmic polynomial correctedtransmittance is used to de-fogging the non-sky region. At the same time, the average value of high luminance pixel set in dark channel image is used to ensure that the estimation result of atmospheric light value tends to reasonable value as far as possible. The output image is further enhanced by fast bilateral filter and cubic logarithmic polynomial transform of transmittance, so as to achievethe purpose of denoising, preserving edge and eliminating the edge halo of the scene. The experiment results show that the invention has the advantages of good demisting effect, high color fidelity of the sky region and strong edge retention ability.

The present invention relates to an electro-optical light-modulation element of the FFS type, and to electro-optical displays and display systems, such as, for example, television screens and computer monitors, which contain elements of this type. The light-modulation elements according to the invention contain a liquid-crystalline modulation medium which has optimised elastic constants and are distinguished, in particular, by high contrast and / or optimised transmission in addition to good contrast, a low viewing-angle dependence, short response times and low addressing voltages. The present invention likewise relates to the liquid-crystalline modulation media used in the electro-optical light-modulation elements.

The invention relates to a heating device (1) for heating a glass surface (2) by means of at least one heating element, which has been applied to the glass surface (2) as a material layer (1.1). Due to such direct heating of the glass surface (2), such as of a protective glass, in that the material layer (1.1) applied in a positive, bonded and non-positive manner, the energy input necessary for heating is low, and the heating is carried out in a uniform manner free of interferences.

A lenticular interlaced image file manipulation / screening method is disclosed. Frame files (which may or may not have already have been compressed) can be fractionally scaled in a coextending lenticular direction to obtain fractionally scaled frame files. Alternatively, frame files can be interlaced to create an interlaced frame file, which can be fractionally scaled. Prior to output, a screened interlaced frame file can then be normalized in a coextending lenticular direction to normalize the initial fractional scaling in the coextending lenticular direction. The invention permits manipulation of work files used to create a lenticular image so as to decrease lenticular image frame memory usage and file handling time, increase the number of frames in a lenticular image for use with high resolution output devices, and increase lenticular image quality.

A method for calibration of digital image capture devices is presented. This simplified method provides a calibration based on the human visual perception of the colors input into the device using simple test targets, measurement devices, and software with a minimum of labor and expertise. This analysis may be performed using the data analysis tools of a conventional electronic spreadsheet. The method normalizes the test target data to both black and white, and converts the normalized data into the color space of the capture device through white point adaptation. The raw captured image data is also normalized to both black and white, and is regressed with the converted, normalized target data to determine the expected measurement values. These values are used to compensate the device output to achieve a high level of color fidelity. To ensure that the level of fidelity is acceptable, the CIE color difference equations are used.

The invention discloses a display panel, a manufacturing method of the display panel and a display device. The display panel comprises a plurality of first color sub-pixels, a plurality of second color sub-pixels, a plurality of third color sub-pixels, a packaging layer and a refractive index adjustment layer, wherein each sub-pixel includes an organic light emitting diode, and the organic light emitting diode includes an anode; the packaging layer covers the organic light emitting diode; and the refractive index adjustment layer is located at the side, which deviates from a substrate, of theanode of each organic light emitting layer, the refractive index of the third color sub-pixels is less than the refractive index of the first color sub-pixels and is less than the refractive index ofthe second color sub-pixels. The refractive index adjustment layer is arranged at the side, which deviates from the substrate, of the anode of each organic light emitting diode, so that the display panel is enabled to have a good observation angle of view in each area, the color deviation of the display panel in the case of a large view of angle is reduced, and the display performance of the display panel is improved.

The invention discloses a display panel. The display panel comprises a first display area and a second display area, wherein the light transmittance of the first display area is greater than that of the second display area. The display panel comprises a plurality of film layers which are arranged in a stacked mode, wherein part of the plurality of film layers is configured to be a light-transmitting layer, and at least part of the light-transmitting layers cover the first display area. The display panel comprises at least one light modulation layer, wherein each light modulation layer is clamped between any adjacent light-transmitting layers covering the first display area, and the light modulation layer is configured to at least partially improve the transmittance of light with preset wavelength between the adjacent light-transmitting layers clamping the light modulation layers. According to the display panel provided by the embodiment of the invention, the overall light transmittanceof the first display area can be improved, and the color fidelity of transmitted light is improved.