801 results about "Monochrome" patented technology

The invention relates to the technical field of textiles. The invention discloses a textile dyeing uniformity detection system, a detection method and a dyeing method. The device comprises a light source supply device which is arranged above a textile and is used for providing light sources with two wavelengths and generating monochromatic coherent light, a dielectric layer supply device for forming a uniform dielectric layer, a reflective light path device for splitting beams and guiding the beams to form an interference area, and an image acquisition device for acquiring interference fringe images, the angle adjusting device is used for adjusting irradiation and acquisition angles; and the image processing device is used for analyzing signals and identifying non-uniform dyeing areas and flaws. A high-precision detection system is constructed, the light source and the dielectric layer cooperate to realize micron-sized defect recognition, the visibility of interference fringes is improved to 0.8 or above, and the dynamic tension frame guarantees the precision. The reflective light path and angle adjusting device adapts to a complex environment, a detection method and a dyeing method are cooperated, and through pretreatment, quantitative analysis and multi-dimensional verification, the misjudgment rate is greatly reduced, and the detection speed adapts to production.

The invention relates to the technical field of liquid crystal display, and provides liquid crystal display equipment based on a field order and a color image display method. An image to be displayed can be decomposed into three sub-frames based on a field sequential display technology, each sub-frame corresponds to a color field, when a liquid crystal panel is driven according to a main color gray scale value of the color field corresponding to each sub-frame, at least one backlight source corresponding to each color field is firstly driven to emit backlight of a first duration within a time period when liquid crystal molecules reach a steady state, and then the backlight source corresponding to each color field is driven to emit backlight of a second duration within a time period when the liquid crystal molecules reach the steady state. The white light of the second duration is emitted after the first duration, so that the white light is added in the backlight lightening stage of each color field, the color gamut range of the color field corresponding to each sub-frame is effectively reduced, and the color separation phenomenon is reduced. In addition, each subframe corresponds to a single color field or a mixed color field, so that the color separation phenomenon in various algorithms can be improved.

The invention provides a focusing method, device and equipment. The method comprises the following steps: determining pixel offset between a red channel image and a green channel image of a tissue slice; the red channel image and the green channel image are a red channel image and a green channel image of a tissue slice in a ghosting image captured by the color image sensor when a red light filter, a green light filter and double optical wedges in the focusing module are modulated at the same time; determining an out-of-focus distance according to the pixel offset and a preset corresponding relation; the preset corresponding relation is the corresponding relation between the pixel offset and the defocus distance; and focusing according to the out-of-focus distance. According to the method provided by the embodiment of the invention, the problem that positive and negative defocusing directions cannot be distinguished through a single-frame image in a phase shift detection automatic focusing technology based on image monochromatic double-hole modulation is solved, and the problem of time waste caused by high-speed switching of an illumination light source in an automatic focusing technology based on red-green double-LED illumination is solved; and meanwhile, the problem that a phase shift detection automatic focusing technology based on pupil segmentation images is relatively small in focusing range is solved.

The invention provides a fracture deformation-seepage cross-scale visualization experiment device and a test method, and relates to the technical field of hydraulic rock mechanics and measurement. Comprising a macroscopic observation assembly, a microscopic observation assembly, a microscopic seepage model, a temperature-stress-seepage loading system, a monochromatic coaxial light source and a data acquisition and analysis system, the microscopic seepage model is used for placing a fractured rock mass; the temperature-stress-seepage loading system is used for injecting fluid with fluorescent microspheres into the microcosmic seepage model, applying load, regulating and controlling temperature and collecting data; the data acquisition and analysis system is used for processing data and images. By arranging the macroscopic observation assembly and the microcosmic observation assembly, double-scale synchronous observation is achieved, the whole process of fracture internal fluid interface evolution and rock mass deformation can be obtained in real time under the multi-physics field coupling conditions of temperature, stress, seepage and the like, visual correlation of deformation, flow and stress is achieved, and the measurement accuracy is improved. And an experimental basis is provided for establishing a fracture multi-field coupling mechanism model.

The invention provides an optical element laser thermal effect and light beam quality integrated measurement device and method, and the device combines key assemblies, such as a pump laser, a real-time power monitoring module, an energy transmission optical fiber, a multi-surface reflector, a beam splitter, a monochromatic optical filter, a CCD camera, an infrared thermal imager, a blackbody radiation calibration module, a Fizeau interferometer and the like. And the thermal effect of the transflective element can be measured at a specific angle. The device combines pump light and test light into one beam through the beam combiner and irradiates the surface of a sample at the same time, after transmission, the beam splitter divides the laser into two paths, one path is used for collecting far-field light spots to calculate the quality of the light beams, the other path forms an interference image to calculate thermal distortion, and meanwhile, the thermal infrared imager monitors the temperature of the sample. According to the invention, non-contact lossless integrated synchronous measurement is realized with high integration level and high flexibility, the device is suitable for temperature, thermal distortion and light beam quality measurement of an optical element under continuous or pulse laser, and thermal response characteristics of a sample are comprehensively and accurately evaluated.

The invention discloses a distinguishing table type X-ray spectrometer and an X-ray absorption spectrum testing method, and relates to the technical field of spectral measurement. The high-resolution table type X-ray spectrometer comprises a sample signal source which is located in a Dowland circle and is used for generating X-rays; the exponential crystal is a bent crystal, the surface shape of the exponential crystal is defined by an exponential equation, so that different points on the curved surface of the crystal have different curvature radiuses and correspond to Rowland circles with different radiuses, each point on the exponential crystal is tangent to the corresponding Rowland circle, and the exponential crystal is used for performing monochromatization and focusing on the X-ray incident from the sample signal source; and the detector is positioned on a surface formed by the corresponding imaging points on each Rowland circle, and is used for receiving the X-rays which are monochromatized and focused by the index crystal and outputting corresponding light intensity signals. Therefore, through the cooperation of the index crystal and the multi-Rowland circle structure, the X-ray absorption spectrum test with high light receiving efficiency, high spectral resolution and wide energy spectrum range can be realized, and the comprehensive performance of the desk type spectrometer is improved.

Systems and methods for calibrating an imager for unmixing of images with multiple fluorophores is described. One example method performed by a computing device includes receiving one or more single-color control images, a foreground channel, and a background channel. The single-color control images are images of the sample with a single fluorophore applied to the sample, and the foreground channel and the background channel are associated with the fluorophore. The method includes determining a difference between the foreground channel and the background channel, acquiring a foreground pixel mask from the difference, averaging a set of foreground pixels in the foreground pixel mask to generate a first spectrum, and subtracting an unstained spectrum from the first spectrum to generate a second spectrum. The second spectrum defines a spectral profile of the sample. A calibration slide and a method of preparing a calibration slide are also described.

The present application provides a display device and a driving method thereof. The display device includes a first monochrome screen driven by a first sub-display signal and cooperating with first sub-light to display a first sub-image in the first subframe and driven by a second sub-display signal and cooperating with second sub-light to display a second sub-image in a second subframe, a second monochrome screen driven by a second display signal and cooperating with second light to display a second image in the frame (including first and second subframes), a first light source projecting first light (including first and second sub-light), and a second light source projecting second light. A first image (including first and second sub-images) and a second image cooperatively present a target image.

The invention relates to the technical field of semiconductor energy material detection, and discloses a table type X-ray spectrometer multifunctional combined integrated in-situ experiment device, which comprises an X-ray source, a light source, an X-ray detector, an X-ray detector, an X-ray detector, an X-ray detector, an X-ray detector and an X-ray detector, the sample table is used for adjusting the position of the sample in the light path; the flight pipeline is used for transmitting X-rays and signals; the detector is used for collecting electronic signals. By adopting the unique design of the X-ray monochromator and the focusing mirror, the measurement and analysis of an X-ray absorption fine structure and a crystal structure can be realized in a conventional laboratory environment without using a synchrotron radiation light source, and X-ray diffraction, scattering and absorption spectrograms comparable to a synchrotron radiation level are obtained with extremely high sensitivity and light source quality; qualitative and quantitative analysis, crystalline state and valence state analysis and long-range structure and short-range coordination structure analysis of elements are achieved, and grazing incidence X-ray diffraction, powder diffraction and XAS research can be conducted in real time.

The invention discloses a surface plasmon resonance imaging system for expanding a dynamic range through a multi-mode optical path, and relates to the technical field of microscopic imaging, a laser outputs a monochromatic and linearly polarized continuous wave beam, a first dynamic beam deflection device performs dynamic angle deflection adjustment on the continuous wave beam, a prism is used for providing a total reflection interface, and a second dynamic beam deflection device is used for performing dynamic angle deflection adjustment on the continuous wave beam. Exciting an evanescent wave; a surface plasma resonance effect is generated through interaction of the SPR detection chip and evanescent waves, and sample characteristics are detected; the flow cell provides a sample flow channel, so that a sample is in full contact with the surface of the SPR detection chip; the second dynamic light beam deflection device cooperatively adjusts the propagation direction of reflected light on the surface of the SPR detection chip, and the imaging detection device captures a high-spatial-resolution SPR image formed by the reflected light and transmits the image to the upper computer in real time for processing and analysis. According to the invention, the change of the resonance angle can be tracked in real time, and high-sensitivity and high-resolution monitoring of the dynamic process of biomolecule interaction is realized.

A wearable display system includes one or more nanowire LED micro-displays. The nanowire micro-LED displays may be monochrome or full-color. The nanowire LEDs forming the arrays may have an advantageously narrow angular emission profile and high light output. Where a plurality of nanowire LED micro-displays is utilized, the micro-displays may be positioned at different sides of an optical combiner, for example, an X-cube prism which receives light rays from different micro-displays and outputs the light rays from the same face of the cube. The optical combiner directs the light to projection optics, which outputs the light to an eyepiece that relays the light to a user's eye. The eyepiece may output the light to the user's eye with different amounts of wavefront divergence, to place virtual content on different depth planes.

Some implementations related to a display device that includes a display surface and a monochromatic image generator. The generator may be designed to produce monochromatic visual information for display, incorporating a primary light source and a transflective spatial light modulator. The display device may include a spatially addressable backlight generator configured to backlight the transflective spatial light modulator. This generator may include an array of colored light sources, which are driven to selectively emit light towards a non-reflective side of the modulator, infusing colored light into the monochromatic visual information. This may result in infused color information being presented at the display surface with the monochromatic visual information. The display device may include one or more processors configured to effectuate the presentation of the infused color information.

The invention discloses a surface topography measurement device and method based on polarization phase shift. The device comprises a laser module, a polarization beam splitting and interference module, a polarization beam combining and imaging module, a polarization image acquisition module and a control and reconstruction module. The laser module comprises a monochromatic tunable laser, an optical fiber collimating amplifier and a polarizer; the polarization beam splitting and interference module comprises a polarization beam splitting prism, a first quarter-wave plate, a plane mirror and a second quarter-wave plate; the polarization beam combining and imaging module comprises a polarization splitting prism, a third quarter-wave plate and a telecentric lens; the polarization image acquisition module comprises a micro-polarization array camera and an image processing unit, and the micro-polarization array camera synchronously acquires four polarization interference images through single exposure; and the control and reconstruction module obtains measurement data of the surface topography of the to-be-measured object through a phase unwrapping algorithm and three-dimensional topography reconstruction. According to the invention, high-precision, large-field-of-view, portable and high-efficiency field detection can be realized.

The invention provides a display panel, a driving circuit thereof and a display device.The display panel comprises a plurality of scanning lines, a plurality of data lines and sub-pixels arranged in an array mode, the sub-pixels comprise the red sub-pixels, the green sub-pixels and the blue sub-pixels, the sub-pixels in every three rows form a pixel group, and the sub-pixels in every three rows form a pixel array. Each pixel group comprises a red sub-pixel row, a green sub-pixel row and a blue sub-pixel row, the sub-pixels in the same column and the same color in every two pixel groups are connected with the same data line, and during line-by-line scanning, the two scanning lines which are respectively connected input line scanning signals at the same time; therefore, monochromatic picture display is realized when high-speed driving and frequency doubling refreshing are adopted.

An intraoral scanner comprises a first light source configured to generate first light that is monochromatic, a second light source configured to generate second light that is multichromatic, a third light source configured to generate third light. The intraoral scanner further comprises a mirror configured to direct at least the first light and the second light onto teeth of a patient, and to redirect first returning light, second returning light, and third returning light returning from the teeth to one or more sensors, wherein first returning light is associated with the first light, the second returning light is associated with the second light, and the third returning light is associated with the third light. The scanner further comprises the one or more sensors configured to perform hyperspectral imaging of the teeth based on at least one of the first returning light, the second returning light, or the third returning light.

The invention discloses a fluorescence detector based on an off-axis parabolic mirror, and belongs to the technical field of liquid chromatographic analysis, the fluorescence detector comprises a light source light path, an excitation monochromatic light path, a flow cell light path, a fluorescence collection light path, a fluorescence emission light path and a detector which are arranged in sequence, and the light source light path generates and converges ultraviolet-visible light; the converged ultraviolet-visible light is converted into monochromatic light with different wavelengths through the monochromatic light excitation path, the monochromatic light irradiates a to-be-detected sample in the flow cell light path to generate fluorescence, the fluorescence collection light path collects and converges the fluorescence, the converged fluorescence is divided into monochromatic fluorescence with different wavelengths through the fluorescence emission light path, and the monochromatic fluorescence is finally detected by the detector. The light source light path and the fluorescence collection light path both adopt off-axis parabolic reflectors to replace lenses, so that the influence of chromatic aberration is eliminated, and the utilization rate of optical energy is improved; the two off-axis parabolic reflectors are matched with each other, so that high spectral resolution is realized, and a simulation imaging light spot is less than 20 microns.

The application provides a high-precision autocollimator based on the Tyman Green interference principle and an angle measuring method, aiming at solving the problem that the prior art cannot continue to break through the existing angle measuring precision due to the limitation of geometric optical principle and the influence of environmental factors. The autocollimator comprises a laser, a filtering collimation module, a beam splitter, a reference mirror, a plane mirror, a detector and a data acquisition and processing computer. After the autocollimator is leveled, the plane mirror is placed on a turntable to be measured, and the measurement is carried out when the turntable has no rotation angle and has a rotation angle, so that the laser is emitted to the filtering collimation module to be emitted as monochromatic parallel light to the beam splitter and is divided into two paths. One path is reflected by the plane mirror and then passes through the beam splitter to reach the detector again. The other path is reflected by the reference mirror and then reflected by the beam splitter to reach the detector again. The two beams interfere on the target surface of the detector, the detector records the interference image and uploads it to the computer to calculate the interference fringe offset, so that the angle measurement is completed.

The invention relates to a dark-light-oriented color-monochromatic dual-camera unmanned aerial vehicle aerial photography imaging method, and belongs to the field of low-light aerial photography imaging. The method comprises the following steps: acquiring paired low-illumination data sets at low altitude at night by using a color camera and a monochromatic camera carried by aerial photography equipment; constructing an integral structure of the aerial low-light imaging method ALICE based on the color-monochrome camera; constructing a disturbance corrector based on wavelet transform, performing rough correction on a degradation region of a low-light color image in the paired low-illumination data set to obtain a corrected image, and meanwhile, avoiding loss of specific texture information in an aerial scene; and constructing a refinement restorer based on monochromatic image guidance in ALICE, performing refinement restoration on the obtained corrected image, and performing fine restoration of exposure and details by utilizing the low-light monochromatic image guidance in the paired low-illumination data set to generate a high-quality aerial image with good exposure and rich texture details. According to the invention, a high-quality aerial image with good exposure and rich texture details can be accurately generated.

An image forming apparatus to which a cartridge is to be removably mounted includes an apparatus main body and a tray movable between a housed position in which the tray is housed in the apparatus and a pulled-out position in which the tray is pulled out from the apparatus. The tray includes a frame having an opening and a cover fixed to the frame, the cover covers the opening so that a part of the opening forms a mounting portion in which the cartridge is contained. When a region of the opening covered with the cover is defined as a covered region, the covered region is larger than the mounting portion as viewed in a direction in which the cartridge is mounted to the tray.

The invention relates to the technical field of liquid crystal display, and provides liquid crystal display equipment based on a field order and a color image display method, which are used for improving the display quality of color images. In the method, one mixed color field and two monochromatic color fields form three color field distributions, the positions of the mixed color fields in each color field distribution are different, and the main colors of the mixed color fields at different positions are different, so that for each backlight partition, the distortion degree of an image block under each color field distribution can be calculated according to the content of the image block corresponding to the backlight partition, and the distortion degree of the image block under each color field distribution is calculated. The color field distribution corresponding to the lowest distortion degree is selected as the target color field distribution, dynamic adjustment of the position of the mixed color field in the three subframes of each image block is achieved, the displayed picture is made to be matched with the content of the image block, and therefore the color separation phenomenon is relieved, color distortion is reduced, and the quality of the displayed image is ensured.

The present invention relates to a monochromatic cloth defect detection method based on weakly supervised learning. By collecting the original cloth images and performing preprocessing, a normal image feature library is established; based on the normal image feature library, the abnormal threshold TH is set, the features of the processed image to be detected are extracted, and the K nearest neighbor algorithm is used to retrieve the K flawless image with the closest similarity to the image to be detected in the normal image dataset, and the K abnormal score between the TH flawless image and the image to be detected is calculated; threshold segmentation is performed using the abnormal threshold to obtain the segmentation mask image of the abnormal area corresponding to the cloth defect. The detection of the present invention is more targeted, has a higher recall rate for cloth image defects, does not require a large amount of time for dataset production and model training, and improves the detection sensitivity for small defect targets while ensuring the real-time performance of detection.

A wearable display system includes one or more emissive micro-displays, e.g., micro-LED displays. The micro-displays may be monochrome micro-displays or full-color micro-displays. The micro-displays may include arrays of light emitters. Light collimators may be utilized to narrow the angular emission profile of light emitted by the light emitters. Where a plurality of emissive micro-displays is utilized, the micro-displays may be positioned at different sides of an optical combiner, e.g., an X-cube prism which receives light rays from different micro-displays and outputs the light rays from the same face of the cube. The optical combiner directs the light to projection optics, which outputs the light to an eyepiece that relays the light to a user's eye. The eyepiece may output the light to the user's eye with different amounts of wavefront divergence, to place virtual content on different depth planes.

The invention relates to the field of optical imaging and computer vision, discloses a large-view-field binocular image combination dynamic parameter adjusting system, and aims to solve the problems that a traditional head-up display is limited in view field and monochromatic display and information response are lagged. The system comprises a left and right eye image acquisition and preprocessing unit, a target positioning and trajectory prediction unit, a binocular parallax compensation and registration unit, a dynamic fusion display control unit, a color enhancement and information superposition unit, an eye movement tracking feedback unit and a parameter adaptive adjustment unit. Through binocular wide-angle acquisition, three-dimensional target prediction, sub-pixel-level image registration, panoramic stitching fusion, semantic color coding and dynamic parameter adjustment of eye movement driving, 120-degree * 60-degree distortionless panoramic display, multi-source information intelligent layered superposition and visual focus area adaptive enhancement are realized. According to the method, the air combat situation sensing efficiency and the weapon response speed are improved, and the method has high real-time performance (delay of lt, 80ms), strong environmental adaptability and engineering integration.

The invention discloses a display method, device and system of a display screen, relates to the technical field of display, can solve the problem that an image displayed by the display screen is red or blue at a high temperature or a low temperature, and ensures better experience of a user in a use process. In the application, when the temperature deviates from the normal temperature greatly, if the difference between the temperature and the normal temperature is greater than the first threshold value, the electronic equipment can compensate the gray scale of a single-color or multi-color sub-pixel, which has a great influence on the display effect of the medium-low brightness and medium-low gray scale, in the three primary colors according to the characteristics of the display screen and the actual temperature, so that the display effect of the medium-low brightness and medium-low gray scale is improved. Therefore, the color and brightness of the display interface meet subjective visual effects and objective index requirements, and the visual experience of a user is improved.

The invention provides a brightness compensation method and a display panel, and the method comprises the steps: obtaining the brightness value of each first region when a monochrome gray scale image of a preset gray scale is displayed, and obtaining a first brightness value matrix; according to the first brightness value matrix, calculating the gradient amplitude of each first region; dividing the display panel into a plurality of second areas according to a relationship between the gradient amplitude of each first area and a preset gradient threshold; acquiring a brightness value of each second area when a monochromatic gray scale picture of a preset gray scale is displayed; a compensation coefficient table is obtained according to the relation between the brightness value of each second area and the brightness value of a reference area, the compensation coefficient table comprises compensation coefficients of each second area under the preset gray scale, and the reference area is one of the multiple second areas; and driving the display panel to display based on the compensation coefficient table. According to the brightness compensation method provided by the embodiment of the invention, the compensation precision can be improved, and the brightness uniformity can be improved.

According to a disclosure of the present document, information associated with a deblocking filter for performing deblocking filtering may include chroma component filter parameter information associated with deblocking parameter offsets that are applied to a chroma component. The chroma component filter parameter information may be selectively signaled on the basis of a chroma tool offset presence flag. Therefore, an effect of increasing overall coding efficiency may be derived by signaling chroma component filter parameter information only in the case of not a monochrome color format.

A direct-display driving system, which is used for driving monochromatic or RGB direct display of vehicle-mounted LEDs. The system comprises a central computing platform, a regional controller and a vehicle-mounted LED module, wherein the regional controller comprises an MCU module; the vehicle-mounted LED module comprises a plurality of LED lamps and an LED driving chip; the central computing platform is used for generating a first control command and sending the first control command to the MCU module; the MCU module is connected to the LED driving chip by means of a QSPI / OSPI protocol; the MCU module generates a first data command on the basis of the received first control command and sends the first data command to the LED driving chip; and the LED driving chip receives the first data command and then controls the grayscale of each LED lamp in the vehicle-mounted LED module.

The invention discloses a Mo / Si reflector reflectivity measurement system and method based on an acousto-optic monochromator, the system comprises an EUV light source, an EUV energy meter, a monochromator and an EUV reflectivity meter, the EUV light source is used as a detection light source, the EUV energy meter is used for monitoring the fluctuation condition of the EUV light source and providing a light source fluctuation calibration coefficient for reflectivity measurement, the monochromator screens light based on the acousto-optic effect of an acousto-optic crystal, and the EUV reflectivity meter is used for measuring the reflectivity of the EUV light source. It is ensured that the EUV reflectivity meter only receives light with the required wavelength; the EUV reflectivity meter serves as a measurement space of a Mo / Si reflector sample, mechanical design is adopted, the size of the EUV reflectivity meter is reduced, meanwhile, a collimation optical system is added, and the accuracy of a measurement result is improved. The invention further provides a measurement method, accurate measurement of the angular spectrum and the reflection spectrum of the Mo / Si reflector is achieved, an effective technology is provided for measurement and development of the Mo / Si reflector, and therefore the EUV photoetching technology is continuously improved.

An electronic device may include at least one display, at least one processor, and a memory configured to store instructions. The instructions, when executed by at least one processor, individually and / or collectively may cause the electronic device to: identify whether an input original image is a partially colorized image with an emphasized specific color in a black-and-white background or a monochrome background on the basis of colorfulness, and create a tinted color image in an entire area of the original image; determine a weight corresponding to the original image and a weight corresponding to the color image; and synthesize the input original image and the color image based on the determined weights.

Disclosed is a joint denoising and demosaicking method for a color RAW image guided by a monochrome image. The method comprises: constructing a synthetic image dataset of a monochrome-color binocular camera system for training and testing of network modules; constructing an aligned guidance image generation module by utilizing a structural correlation between a monochrome image and a color image, using a clean grayscale image corresponding to the RAW image as supervision, and training the aligned guidance image generation module by using a perceptual loss function to generate a high-quality aligned guidance image; using the generated aligned guidance image to guide the joint denoising and demosaicking process of the color RAW image; and training a guided denoising and demosaicking module ensure the accuracy of the color of the denoising and demosaicking result while accurately transferring the guidance image structure.