15 results about "Color blind" patented technology

To allow a minority color vision person to obtain color vision coincident with that of many standard color vision persons by coping with an optical characteristic of a display device and an individual difference in color vision.SOLUTION: A pre-conversion image 100 is displayed on a display 130 for a majority color vision person via a normal display device 120 on one hand, and is displayed on a display 170 for a minority color vision person via a color vision correction device 150 on the other hand. In color vision correction device 150, correction calculator 160 performs correction conversion calculation on the RGB data (R, G, B) according to correction conversion calculation program 162 to obtain corrected RGB data (R ', G ', B '). At this time, the correction conversion is performed so that the cone stimulation values (L, M, S) for a person with polychromatism who views the display 130 and the cone stimulation values (L ', M ', S ') for a person with minority color vision who views the display 170 match.SELECTED DRAWING: Figure 2

This invention provides an image processing device, an image processing method, and an image processing program that enable individuals with color vision deficiency to distinguish between different colors through simulation and clustering. [Solution] The image processing device is an image processing device that converts input image data input to an input device into output image data within a set color gamut on an output device, and includes: a simulation image generation unit that performs a dichromacy simulation on the input image data in the input device to generate a color vision simulation image; an input color information conversion unit that converts the simulation image generated by the simulation image generation unit into an XYZ color system; a confusion color information storage unit that stores confusion color information relating to confusion color lines that show the distribution of colors that are difficult for colorblind persons to distinguish; and a clustering processing unit that performs clustering to classify multiple similar colors and aggregate them into a representative number of colors.

This invention provides a myopia screening device. The first end of the housing is designated as the detection end for testing the subject's eyes. A visual target screen, a screening camera, and an optical path assembly are all housed within the housing. The visual target screen is located on one side wall of the housing, the optical path assembly is positioned between the detection end and the visual target screen, and the screening camera is located at the second end of the housing. The screening camera captures a light and shadow image of the subject's pupil. A processor processes and analyzes the light and shadow image captured by the screening camera. An input device communicates with the processor and inputs the image seen by the subject on the visual target screen into the processor. This invention enables not only refractive error testing but also visual acuity testing and color blindness / color weakness testing. Furthermore, this invention can estimate the subject's visual acuity based on the refractive error test results, generate a corresponding estimated visual target based on the estimated visual acuity, and quickly complete the visual acuity test, effectively shortening the visual acuity screening time.

The application discloses a display improvement method and system based on full color blindness, a terminal and a storage medium. The method comprises the following steps: acquiring brightness information of each partition image, and obtaining a first image brightness matrix based on the brightness information; acquiring the maximum brightness and the minimum brightness of the first image brightness matrix, and calculating the difference between the maximum brightness and the minimum brightness; converting the first image brightness matrix based on the difference to obtain a second image brightness matrix, and transmitting the second image brightness matrix to a display to complete image display. The application is based on the visual characteristics of the full color blindness population, and through a segmented brightness conversion function, an image more suitable for the full color blindness population is obtained, a personalized viewing mode is provided for the full color blindness special users, a more comfortable viewing experience is brought, and the happiness index of the full color blindness special users is improved.

We provide a system that allows visually impaired users to easily navigate web pages and access information. [Solution] The system consists of an editorial department that dynamically edits the HTML of a web page, a support department that adapts the edited HTML to the web standard WAI-ARIA, a navigation department that provides keyboard navigation based on the adapted HTML, an alternative text generation department that generates alternative text for images based on the navigation, a labeling department that adds labels to form fields based on the alternative text, a filter department that provides a filter function to accommodate color blindness based on the labels, and a summarization department that summarizes the content based on the filter function.

The present disclosure discloses a content display method and apparatus, an electronic device, and a computer-readable storage medium. In the present disclosure, after RGB information is converted into target color space information according to a color blindness type, brightness adjustment is performed on a brightness value of the target color space information according to an original brightness value to acquire adjusted target color space information, and the loss degree of the brightness value in the adjusted target color space information is reduced, such that abnormal brightness of content to be displayed is avoided when said content is displayed according to the adjusted target color space information.

A system is provided.SOLUTION: The system includes a means for receiving an existing material, a means for analyzing the received material and grasping the emphasis of colors, a means for learning the combination of colors which are difficult for a colorblind person to view, a means for learning colors which are easy for the colorblind person to view, a means for changing the material to color arrangement friendly to the colorblind person on the basis of a learning result, and a means for generating and transmitting the changed material.SELECTED DRAWING: Figure 1

Provided are an electronic device and a control method therefor. This electronic device comprises: a display; a memory storing instructions; and at least one processor. The instructions, when executed individually or collectively by the at least one processor, instruct the electronic device to: on the basis of information on a plurality of objects included on an execution screen of an application, identify whether color correction for the plurality of objects is needed for a color-weak user; if color correction for the plurality of objects is identified to be needed, provide, on the display, a UI for the color correction for the plurality of objects; and perform the color correction for the plurality of objects according to a user input inputted through the UI.

According to the individualized color vision abnormality image color reconstruction method based on the physiological model, continuous offset of an L / M visual cone absorption peak value is simulated on the wave number scale, spectral perception changes of color weakness / color blindness people on the physiological structure level are truly represented, and scientificity and interpretation of color vision abnormality simulation are remarkably improved; a color vision anomaly model for individuals is constructed, so that a simulation result not only conforms to a physiological mechanism, but also can reflect unique color vision features of each observer, and technical support is provided for individualized image enhancement and accurate visual evaluation; eEW normalization correction is carried out on abnormal cone cell response, so that the visual response of a simulated individual under isoenergetic white light is consistent with that of a standard observer, and the stability and naturalness of image simulation are facilitated; the GOG model is introduced in the mapping process between the RGB space and the XYZ space, Gamma response characteristics and channel nonlinearity of actual display equipment are fully considered, and the fitting precision from image pixels to visual response is effectively improved.

Systems and methods for providing colorblind accessible versions of color images are disclosed. For a given image, pixel values that a colorblind user would see are determined. Using these values, a corrected rendered image is produced and presented to the colorblind user that appears to the colorblind user to depict a similar color scheme as the original image. The proposed systems can be implemented with previously captured image data, real-time video, and as an additional item to other applications.

A display apparatus according to the present disclosure comprises an image display unit, a backlight unit, and at least one processor. The backlight unit comprises: a substrate; and a plurality of dimming blocks arranged in a plurality of rows and a plurality of columns on the substrate, wherein each of the dimming blocks includes a red LED, a green LED, and a blue LED. In a color vision deficiency mode, the at least one processor may: acquire, on the basis of image data, color difference values between a plurality of image blocks of an image corresponding to the plurality of dimming blocks; determine, on the basis of the color difference values between the plurality of image blocks, at least one of a current weight for a red LED of one dimming block among the plurality of dimming blocks, a current weight for a green LED of the dimming block, and a current weight for a blue LED of the dimming block; and control, on the basis of the image data and the determined current weight, current supplied to at least one of the red LED of the dimming block, the green LED of the dimming block, and the blue LED of the dimming block.

The invention discloses an image adjusting method and a projection device. The image adjusting method is applied to the projection device and comprises the following steps: projecting a mode setting menu to a projection surface by means of a projection module; in response to a selection operation of the user based on the mode setting menu, controlling the projection device to enter a color blindness selection mode; when the projection device enters a color blindness selection mode, projecting the reference picture and a plurality of color blindness test pictures corresponding to the at least one color blindness type to a projection surface by means of the projection module so as to perform a color blindness test; in response to one of the color blindness test pictures selected by a user based on a reference picture, obtaining corresponding optical color setting information; and adjusting the driving current corresponding to at least one of the red light signal, the blue light signal and the green light signal based on the optical color setting information so as to perform color compensation on the projection image, so that a color blindness user can distinguish the color display of the projection image with naked eyes.

A color vision correction resin lens coating material and a preparation method thereof, the coating material comprising: an isocyanate compound, 30-40 parts by weight; a thiol compound, 15-30 parts by weight; polyvinyl butyral, 5-25 parts by weight; a photosensitive color-changing solution, 1-5 parts by weight; an initiator; a defoaming agent; a wetting agent. The photosensitive color-changing nanocomposite microspheres contained therein have a core composed of two spiropyran compounds and a shell coated with a modified acrylate material. The coating material has high flexibility and firmness; on the other hand, the coating material can automatically perform light filtering and color complementation, the color purity of the red and green band spectrum and the dimension of the color vision vector space are synergistically enhanced through the complementary color change of the two color-changing materials, the color vision abnormality is regulated, and the color discrimination ability is improved, thereby avoiding the over-reliance on one color caused by long-term wearing of color blindness glasses by color weak and color blind patients, maintaining visual quality, and having the advantages of high color saturation, good color complementation effect, comfortable wearing, etc.

A virtual reality (VR) system can be implemented for testing and recommending adaptive eyewear for color blindness. The system can use an electronic device featuring a head-mounted display (HMD) and eye-tracking sensors. The system can generate a VR user interface that creates a three-dimensional virtual environment, rendered on the HMD. Within this virtual space, the system can simulate a variety of color wavelength tasks. As users engage with these tasks, the eye-tracking sensors can continuously monitor responses to the simulated tasks. The system can then analyze the tracked data for color perception performance and recommend adaptive eyewear for color blindness.

The invention relates to a preparation method of in-vitro color vision correction wearable equipment, which comprises the following steps of: accurately determining a color weakness / color blindness type by adopting triple verification of image measurement, a color vision correction simulation model and a naturalness evaluation index, and outputting a spectral line of an optical filter according with a color vision disorder condition by utilizing a naturalness and contrast evaluation system; constructing a PDK file between the spectral parameters of the nanoparticles and the structure and process parameters; the method comprises the following steps: establishing a reverse design scheme for synthesizing multi-component plasmon nanoparticles by adopting a gradient descent algorithm and a neural network algorithm, and providing spectral parameters of each component nanoparticle; and constructing a PDK file self-assembled by the nanoparticles, and providing customized full-process design for visual correction by combining the structure parameters and the process parameters of the target nanoparticles obtained by the process. According to the method, through the wearable filter, the image and color recognition capability of the individual patient watching the public display screen is directly changed, and patient-oriented differentiation and customization of low-cost color vision correction wearable equipment are realized.