48 results about "Color test" patented technology

The invention is suitable for the field of LED display module quality monitoring, and provides an LED display module out-of-control point monitoring and early warning method and system, and the method comprises the steps: importing a plurality of standard color test images at regular time, and generating a first-level mirror image consistent with a real-time output image of a display module; collecting and identifying the primary mirror image, extracting a plurality of target pixel points, and calculating a deviation value of the plurality of target pixel points; evaluating the real-time color uniformity of the display module and marking a prediction out-of-control point area; external signal sources of different formats are accessed regularly, and a secondary mirror image consistent with a real-time output picture of the display module is generated; collecting and identifying a secondary mirror image, identifying and predicting abnormal information of an out-of-control point area, and determining an abnormal out-of-control point position; the abnormal out-of-control point deterioration trend is continuously obtained, targeted early warning information is generated and sent, out-of-control point monitoring is efficiently completed on the premise that normal work of a display module is not interfered, possible out-of-control areas are locked in advance, and problem expansion is avoided.

A color checker device is disclosed. The color checker device includes a substrate configured to be inserted into a model eye and to conform to a surface curvature of the model eye when inserted therein. A color test target is located on the substrate. The color test target comprises a plurality of color sections configured for generating a color characterization profile of a fundus imaging camera configured to capture a color image of a human retina. A method of generating a color characterization profile using the color checker device and a fundus imaging system having the color characterization profile stored thereon are also disclosed.

Phototherapy devices having features to determine a dosing protocol for a user, and associated systems and methods are disclosed herein. In some embodiments, the phototherapy devices can include a color testing component positioned to obtain a measurement of a treatment region of the user's skin. The phototherapy device can use the measurement to calculate an average individual topography angle (ITA) for the user's skin across the treatment region, and use the average ITA to determine a dosing protocol for the user specific to features of their skin. The phototherapy device can then deliver a dose of ultraviolet radiation to the treatment region based on the dosing protocol.

The invention discloses an outdoor dot matrix display screen picture flaw detection method, device and system based on texture features and a server. According to the method, at least two pure color test pictures are obtained, and defect full-coverage detection is realized by utilizing sensitivity differences of different color channels; besides, multi-scale feature extraction is carried out based on a Gabor filter, so that scale features such as single-point dead pixels, regional dark spots and module-level distortion can be captured, and multiple types of flaws such as brightness deviation and large-area uneven brightness can be covered. According to the method, the detection rate of traditional leak detection scenes such as small dead pixels and color deviation is increased to 95% or above, the environment robustness is high, the false detection rate in the complex illumination and vibration environment is low, and a high-reliability automatic defect detection solution is provided for the field of outdoor advertisements and public display.

The invention provides a point light source light field distribution testing device and method, and the device comprises a daylighting part, a diffusion sheet and a photographing device, a point light source part is conveyed to a testing station through a conveying device, the testing station is located below the daylighting part, the daylighting part is close to the point light source part, the diffusion sheet is arranged at the top of the daylighting part, and the photographing device is located below the diffusion sheet. The light collecting piece is arranged above the spot light source, the shooting device is arranged above the diffusion sheet, the light collecting piece collects light rays emitted by the spot light source at different angles, the light rays are scattered at the diffusion sheet, and the shooting device collects images on the diffusion sheet. According to the scheme, color testing of the light source and light field distribution are combined together, collection of all light emitting information of a point light source material can be completed through one-time testing, and the requirement for automatic testing of the LED light field is met.

The invention discloses a ray tracing method, a graphics processor, an electronic device and a storage medium, and the method comprises the steps: obtaining batch primitive information meeting a coloring test requirement in a current node in a bounding volume hierarchical structure by a ray tracer in a process of carrying out a traversal intersection test on a ray and the bounding volume hierarchical structure; transmitting the batch primitive information and the current light ray information corresponding to the current node to a shader, so that the shader performs a coloring intersection test on the batch primitive and the current light ray; and receiving an intersection test result transmitted by the shader, and executing ray tracing operation according to the intersection test result. According to the technical scheme, the waiting time delay of information transmission between the light tracer and the shader can be reduced, and the execution efficiency of a graphic rendering task and the utilization rate of hardware resources of a graphic processor are improved.

Phototherapy devices having features to determine a dosing protocol for a user, and associated systems and methods are disclosed herein. In some embodiments, the phototherapy devices can include a color testing component positioned to obtain a measurement of a treatment region of the user's skin. The phototherapy device can use the measurement to calculate an average individual topography angle (ITA) for the user's skin across the treatment region, and use the average ITA to determine a dosing protocol for the user specific to features of their skin. The phototherapy device can then deliver a dose of ultraviolet radiation to the treatment region based on the dosing protocol.

The utility model relates to a five-color test fixture, which belongs to the technical field of equipment test, and comprises a test fixture body and a plurality of test positions, each test position is provided with an indicator lamp capable of being independently controlled, and the outer side of the test fixture body is provided with a detection heat dissipation mechanism. The top of the test fixture body is fixedly provided with a plurality of test positions. According to the five-color test fixture, whether a circuit of a lamp bead is normal or not can be judged under the action of the metal pins and the indicator lamps, heat can be quickly conducted by using the heat conducting seat and the vapor chamber, and the temperature on the vapor chamber and the heat conducting seat can be reduced under air outlet of the cooling fan, so that the test fixture body is cooled; the service life of the device is prolonged, a limiting pin can be driven to stretch out and draw back under the action of a pull ring, a movable rod, a movable plate and a reset spring, the heat conduction base can be conveniently fixed in an inserted mode or detached through the limiting pin, maintenance and replacement are convenient, and flexibility is improved.

The present invention discloses a method and system for detecting the quality of in-vehicle display screens based on image color gamut analysis, which relates to the technical field of display screen detection. The method includes obtaining in-vehicle display screen information, based on the in-vehicle display screen information, obtaining the standard color gamut information of the display screen, and based on the standard color gamut information of the display screen, through quality detection and analysis of the display screen, obtaining the regional range threshold. By dividing the in-vehicle display screen, the present invention ensures the accuracy and reliability of the quality detection of the in-vehicle display screen. Through the color gamut coverage index of the display screen, the color gamut coverage condition of the display screen is accurately evaluated, ensuring the stability of production quality. Through the color test data of the display screen, it is judged whether the image display of the display screen meets the production standard, ensuring that the in-vehicle display screen provides a consistent and true color experience under different lighting and angles. It can effectively identify the color deviation of the display screen, ensure that the visual effect reaches the design standard, and improve driving safety and user experience.

The present application discloses a method, device, electronic device and storage medium for adjusting display color. A color test interface is displayed, the color test interface includes a first area and a second area, the first area displays a target number of color blocks, the second area displays a target number of controls to be filled, and in response to a selection operation on the color blocks, the color blocks are filled into the controls to be filled, and when it is detected that the target number of color blocks are all filled into the target number of controls to be filled, the display color of the electronic device is adjusted based on the relationship between the arrangement order of the target number of color blocks on the target number of controls to be filled and the preset arrangement order, and the colors of adjacent color blocks formed by the target number of color blocks under the preset arrangement order are the closest. The present application provides a color test interface to perform a sorting test of similar colors, and adjusts the display color of the electronic device according to the test results to achieve personalization of the display color and improve the user experience.

A control device selects one of a plurality of chromatic colors as a target chromatic color according to a consumption status of developing agents of the plurality of chromatic colors. The control device causes an image forming portion to execute a process of forming, on a surface of a transfer medium, a plurality of chromatic color test images of the plurality of chromatic colors, and a superimposed test image in which a black test image is superimposed on a background image of the target chromatic color. The control device acquires a test detection signal of an amount of diffuse reflection light in each of areas of the plurality of chromatic color test images and the superimposed test image on the surface of the transfer medium. The control device adjusts timing of image formation of the plurality of colors by the image forming portion based on the test detection signal.

This application relates to apparatus and methods for testing one or more computing devices. In one example, a testing system includes a testing frame with at least one testing cabinet for housing a computing device under test. The testing cabinet can also include testing equipment such as a camera, a microphone, a speaker, a color test sheet, and an ambient light sensor. Further, the testing frame includes a control cabinet for housing a testing computing device, where the testing computing device is communicatively coupled, through one or more hubs, to each computing device under test. The testing frame may also include a bracket that secures a monitor and a keyboard, where the monitor and keyboard are communicatively coupled to the testing computing device. The testing computing device can control the testing equipment to test various functions of the computing device under test, an may generate status based on the tests.

The invention discloses an ink color testing method, device and equipment and a storage medium, and relates to the technical field of ink testing for ink-jet printing. The method comprises the following steps: determining test waiting time; controlling the ink-jet printing equipment to jet ink to be tested onto a printing medium to obtain a first test image; and after the test waiting time, controlling a color acquisition device to obtain a color value of the first test image so as to determine color characteristics of the ink to be tested. According to the method provided by the invention, the color of the first test image is not collected immediately after the first test image is printed, but is collected after the test waiting time ensures that the color of the ink on the printing medium is stable, so that the test result is closer to the actual performance, and the accuracy of the ink color test result is improved.

The present invention discloses a color test paper for aflatoxin detection and a preparation method thereof. 71‑x Y x Nb6B 23 Nanocrystalline / amorphous composite magnetic iron-based nanoparticles are mixed with colloidal gold particles, labeled with corresponding antibodies, and then sprayed on a nitrocellulose membrane. Finally, a polyvinyl chloride base plate, a sample pad, a nitrocellulose membrane, and absorbent paper are assembled to form a color test paper. 71‑x Y x Nb6B 23 The mixed particles of nanocrystalline / amorphous composite magnetic iron-based nanoparticles and colloidal gold have a specific adsorption effect on aflatoxin, forming color blocks under the action of particle agglomeration, thereby realizing the visual detection of aflatoxin.

The embodiments of the present application relate to the technical field of aerosol generation apparatuses. Disclosed are a color testing calibration method and an aerosol generation apparatus. The method comprises: acquiring a no-load signal of an aerosol generation apparatus, then controlling a color testing apparatus to perform a color test, so as to obtain a new background color value; according to the new background color value and the current background color value, calibrating the current color threshold interval, so as to obtain a new color threshold interval; and storing the new color threshold interval and the new background color value. That is, along with the use of an aerosol generation apparatus, the current background color value and the current color threshold interval are re-calibrated, a new color threshold interval and a new background color value, which are obtained by means of calibration, are used as reference values for color determination, such that the reference values are adapted to a smudge and aging of a color testing apparatus. By means of the present application, fine errors such as small dirt and brightness attenuation can be corrected in a timely manner, color testing is more accurate, and the anti-dirt effect is effectively achieved.

A control device selects one of a plurality of chromatic colors as a target chromatic color according to a consumption status of developing agents of the plurality of chromatic colors. The control device causes an image forming portion to execute a process of forming, on a surface of a transfer medium, a plurality of chromatic color test images of the plurality of chromatic colors, and a superimposed test image in which a black test image is superimposed on a background image of the target chromatic color. The control device acquires a test detection signal of an amount of diffuse reflection light in each of areas of the plurality of chromatic color test images and the superimposed test image on the surface of the transfer medium. The control device adjusts timing of image formation of the plurality of colors by the image forming portion based on the test detection signal.

The invention discloses a nanocellulose color test strip for simultaneously detecting porcine epidemic diarrhea virus (PEDV), porcine delta coronavirus (PDCoV) and porcine acute diarrhea syndrome coronavirus (SADS-CoV). The red nanocellulose ball labeled combination pad is coated with a red nanocellulose ball labeled anti-PEDVN protein monoclonal antibody; the green nanocellulose ball labeled combination pad is coated with an anti-PDCoVN protein monoclonal antibody labeled by green nanocellulose balls; the blue nanocellulose ball labeled combination pad is coated with an anti-SADS-CoVN protein monoclonal antibody labeled by blue nanocellulose balls; the three detection lines are respectively coated with monoclonal antibodies of N proteins of the three viruses, and the quality control line is coated with rabbit anti-mouse IgG. The test strip distinguishes target viruses through colors, is high in sensitivity and simple and convenient to operate, and can complete triple detection within 10 minutes.

The invention relates to a packaging unit detecting and positioning method and system based on image analysis, and relates to the technical field of image detection.The method comprises the steps that multiple sets of illumination parameters for testing are determined; acquiring color test images of the plurality of food packages for testing under the plurality of groups of illumination parameters for testing, and determining an optimal illumination parameter; a plurality of color test images of the to-be-punched food packages under the optimal illumination parameters are obtained, and the positions of the to-be-punched food packages in any two color test images are different; determining a punching positioning matching point group of the to-be-punched food package based on the plurality of color test images of the to-be-punched food package under the optimal illumination parameters; acquiring a color real-time image of the food package to be punched under the optimal illumination parameter; and the real-time punching coordinate is determined based on the punching positioning matching point group and the color real-time image of the to-be-punched food package, and the method has the advantage of improving the punching positioning efficiency and accuracy of the food package.

The application belongs to the field of electrochemistry, and relates to tumor protein P53 gene detection, in particular to a label-free double-color test strip, a kit and a preparation method thereof for tumor protein P53 gene detection. The application belongs to a novel LFA method, which combines DNA hybridization chain reaction with the electrostatic adsorption principle of test line / control line, selects common and cost-effective bovine serum albumin as the test line, utilizes the difference in the adsorption capacity of BSA to double-stranded DNA and nano-gold, and the different flow rates of different molecules on the NC membrane to complete the detection of p53 at different concentrations. The test line is constructed by positively charged PDDA to ensure the effectiveness of the LFA. Meanwhile, the detection principle of a liquid colorimetric sensor is combined, and the double-color development greatly reduces the detection limit of the test strip. The sensor is label-free throughout, and has high analytical performance in terms of sensitivity, selectivity and practicability. The p53 gene is detected on the lateral flow test strip for the first time.

The utility model provides a hard contact lens fitting device which is used for checking whether a hard contact lens is matched or not through fluorescein and comprises colored test paper and a holding handle, and the holding handle is connected with the colored test paper; the coloring test paper is cylindrical, and one end, far away from the holding handle, of the coloring test paper extends along the axial direction of the holding handle to form a coloring part with a curved surface; the shape of the holding handle comprises a rod shape, the holding handle is connected with one end of the colored test paper, and a disc-shaped stopping part is formed by extending along the radial direction of the holding handle and is used for stopping fluorescein adsorbed by the colored test paper. The utility model provides a hard contact lens fitting device, which is helpful for improving the uniformity of fluorescein distribution, improving the accuracy of fitting results and reducing the possibility of pollution caused by fluorescein leakage.

The invention relates to user-specific color contrast enhancement. The present invention proposes a device and a corresponding method for estimating a classification color matching function (CMF) type of a user and / or adjusting a color imaging workflow of a device. The estimating the classification CMF type of the user includes: causing a display screen to display a binary color test set; calculating a score for each classification CMF type in a predetermined set of classification CMF types according to the received input information; and selecting a classification CMF type corresponding to the maximum or minimum score for the user. Furthermore, the invention proposes a device and a corresponding method for creating a binary color test set.

The present invention relates to the technical field of LED module testing, and in particular to an intelligent testing method and system for display effects of LED modules, which can improve the efficiency and accuracy of LED module testing; the method comprises: dividing the LED module into a plurality of test unit modules according to the size of the LED module to be tested, and associating each test unit module with a corresponding position on the LED module; determining LED module test items, the LED module test items comprising a viewing angle test, a brightness test, a color test, a response time test and a contrast test; according to the determined LED module test items, testing each test unit module one by one, and obtaining a project test result information set corresponding to the test unit module; the project test result information set comprises a viewing angle test result, a brightness test result, a color test result, a response time test result and a contrast test result; and aligning the project test result information set with the position of the test unit module.

The invention provides a gallium nitride semiconductor chip packaging debugging parameter detection device and method. The problems that in the Micro-LED display technology, a traditional display voltage value testing method is high in accuracy requirement and not visual enough are solved. According to the method, pure color test data of different chromaticity are transmitted through a special detection device, and the maximum value of the number of LED chips which can be lightened under the driving of the test data is observed and recorded, so that a corresponding display voltage value is directly calculated. The innovation not only simplifies the test process, reduces the accuracy requirement of the brightness test, but also improves the intuition and reliability of the test. According to the invention, an efficient and convenient test means is provided for production and quality control of the Micro-LED display technology.

The invention belongs to the technical field of aerogel coating preparation, and particularly relates to an aerogel coating preparation method and device.The device comprises a stirring barrel, a rectangular shell is fixedly connected to one side of the stirring barrel, a detection device is arranged in the rectangular shell, and the detection device comprises a plurality of material taking assemblies arranged on one side of the stirring barrel; the material taking assembly comprises a first cylinder arranged on one side of the stirring barrel, the first cylinder communicates with the interior of the stirring barrel, a cylindrical block is slidably arranged in the middle of the first cylinder, a rectangular hole is formed in one side of the first cylinder, color testing paper is arranged on one side of the first cylinder, and a detection assembly is arranged on one side in the rectangular shell. The detection assembly comprises a colorimeter arranged on one side of the rectangular shell in a sliding mode, the colorimeter is driven to detect the aerogel coating on the surface of each piece of color test paper, and the problem that sampling is inaccurate possibly due to the fact that sampling detection is conducted by stretching into the aerogel coating from the liquid level, and consequently the detection result is inaccurate is solved.

The present invention relates to the field of metal ion detection in solution, and in particular to an organic compound for detecting the content of chromium ions in solution and its application. The present invention proposes an organic compound using ethylenebenzopiperazine-pyridine-6-carboxylic acid as an ion complex and connected to a chromogenic group or a fluorescent group, which is a selective chromium ion complexing agent, which can be used for selective elimination and masking of chromium ions and has extremely high selectivity. By introducing a chromogenic group, it can be used for selective color development of chromium ions in various media, spectrophotometric determination, and preparation of color development test papers. By introducing a fluorescent group, it can also become a chromium ion fluorescent indicator, and the content of chromium ions in each solution can be calculated from its fluorescence intensity, which greatly improves efficiency, sensitivity and reproducibility.

This invention relates to user-specific color contrast enhancement. The invention proposes an apparatus and corresponding method for estimating a user's categorical color matching function (CMF) type and / or adjusting the device's color imaging workflow. Estimating the user's categorical CMF type includes: displaying a binary color test set on a screen; calculating a score for each categorical CMF type in a predetermined set of categorical CMF types based on received input information; and selecting a categorical CMF type for the user corresponding to the maximum or minimum score. Furthermore, this invention proposes an apparatus and corresponding method for creating a binary color test set.

The utility model provides a point light source light field distribution testing device, which comprises a daylighting piece, a diffusion sheet and a shooting device, a point light source piece is conveyed to a testing station by a conveying device, the testing station is arranged below the daylighting piece, the daylighting piece is arranged close to the point light source piece, the diffusion sheet is arranged at the top of the daylighting piece, and the shooting device is arranged on the testing station. The light collecting piece is arranged above the spot light source, the shooting device is arranged above the diffusion sheet, the light collecting piece collects light rays emitted by the spot light source at different angles, the light rays are scattered at the diffusion sheet, and the shooting device collects images on the diffusion sheet. According to the scheme, color testing of the light source and light field distribution are combined together, collection of all light emitting information of a point light source material can be completed through one-time testing, and the requirement for automatic testing of the LED light field is met.

The application discloses a printed matter color automatic detection device and detection method, which comprises a chassis, a transmission assembly arranged above the chassis to realize transmission of the printed matter, and a detection cabinet mounted on the top of the chassis, and a color detection mechanism arranged in the detection cabinet to realize multiple detection operations of the color of the printed matter. The application relates to the color automatic detection technical field. The printed matter color automatic detection device and detection method are provided with the color detection mechanism, a switching unit is used to realize switching operations of different light source lamps, color tests under different environments in the detection process are realized, personnel is not needed to replace the light source lamps, the clamping unit is used to realize clamping opening of the light source lamps, and the clamping opening realizes light source generation and stable operations, light source switching and positioning operations, so that the overall detection operation is more convenient, the efficiency is higher, and integrated automatic color detection operations are realized.

An abrasive article including a backing; a plurality of shaped abrasive particles overlying the backing; where the abrasive article further has: 1) a Swarf Mode Gray Value of less than 25 for cumulative material removed of at least 500 g according to the Inconel Grinding Swarf Color Test; 2) a Maximum Swarf Mode Gray Value of less than 25 for a cumulative material removal of not greater than 700 g according to the Inconel Grinding Swarf Color Test; or 3) a combination of 1) and 2).

The invention discloses a color phase detection method of a pigment, which comprises the following steps: preparing a standard rich color test block and a to-be-detected rich color test block as well as a standard light color test block and a to-be-detected light color test block, and making a colorimetric color card; respectively comparing the colors of the standard rich-color test block and the to-be-detected rich-color test block in the colorimetric color card and the colors of the standard light-color test block and the to-be-detected light-color test block in the colorimetric color card by adopting a visual observation mode; respectively detecting the standard rich-color test block, the to-be-detected rich-color test block, the standard light-color test block and the to-be-detected light-color test block by adopting a colorimeter to obtain a chromatic aberration parameter E1 of the to-be-detected rich-color test block relative to the standard rich-color test block and a chromatic aberration parameter E2 of the to-be-detected light-color test block relative to the standard light-color test block; if the visual observation result shows that the colors of the corresponding test pieces are similar, E1 < = 0.8 and E2 < = 0.8 are met simultaneously, the to-be-detected pigment is judged to be qualified. According to the hue detection method, the hue of the pigment can be accurately and rapidly detected, and the stability of the hue of the pigment is ensured.