11 results about "Colour blind" patented technology

The utility model relates to the technical field of color vision detection, in particular to a color blindness and color weakness detection disc which comprises a storage mechanism, a peep-proof mechanism, an adjusting mechanism and a detection mechanism. According to the color blindness and color weakness detection device, the false homochromaticity images pasted in all the grooves in the rotating disc are sequentially rotated to the position under the observation hole to be observed by a detector, on one hand, the color discrimination ability of the detector can be evaluated more comprehensively, the time of the detector in the color blindness and color weakness detection process is shortened, the color blindness and color weakness detection efficiency of the detector is further improved, and the detection efficiency of the detector is improved. On the other hand, a detector observes different false homochromatic images on the rotating disc, the situation that the detector makes contact with the false homochromatic images manually is reduced, the service life of the detection disc is prolonged, meanwhile, an observation hole is shielded through a baffle at the top of the peep-proof mechanism, it is guaranteed that the false homochromatic images on the rotating disc can only be observed by the detector, the situation that the detector is reminded by others is avoided, and the detection efficiency is improved. And the detection accuracy and fairness are further improved.

A computer implemented image processing method is described which comprises identifying a degree of similarity between two or more hues as viewed by a colour vision deficient viewer, and determining the two or more hues to be problem hues if the degree of similarity satisfies a similarity criterion. For one or more of the problem hues, a colour group is defined, the colour group including the problem hue and related hues within a colour range of the problem hue. Subsequently, when video images are received, for one or more of the colour groups, one or more regions in a received image having a hue corresponding to that colour group are identified, and a pattern is applied to those regions. In this way, patterns are applied only to regions of the image having a hue within a defined colour group containing a problem hue. As a result, the part of the image formerly represented only by the problem colour is now represented by a pattern, which is easily discernible by a colour-blind viewer. Regions of the image which do not contain a problem hue are not patterned in this way, and so the majority of the image remains unchanged.

The invention relates to the technical field of color blindness diagnosis, and particularly provides a color blindness personalized interactive evaluation method and system based on augmented reality, and the method comprises the steps: building a color mapping relation between a physical color card and an augmented reality environment based on a standard illumination condition; generating a hue test task composed of a plurality of virtual color blocks corresponding to the color mapping relation through the augmented reality environment; based on a natural interaction mode, assisting the user in sorting the virtual color blocks and recording a sorting result to obtain color vision defect features; local or cloud quantitative analysis is carried out on the color vision defect features, color vision quantitative error parameters are calculated, a user color vision perception model is constructed, and the color vision defect type and severity level of the user are output based on the user color vision perception model; and outputting a color vision evaluation report and generating a targeted color optimization scheme according to the user color vision perception model, the color vision defect type and the severity level. According to the invention, a full-process solution from accurate evaluation to personalized color adaptation is provided for color blindness users.

The application discloses a color blindness auxiliary identification method and device, equipment and storage medium, relates to the technical field of head-mounted display equipment, and the method is applied to the head-mounted display equipment, and the head-mounted display equipment comprises an inside camera, an outside camera and an imaging module. The method comprises the following steps: determining the color blindness auxiliary type of the head-mounted display equipment, wherein the color blindness auxiliary type corresponds to at least one obstacle color; identifying the fixation point of a target user through the inside camera, and acquiring a scene image through the outside camera; identifying the target object corresponding to the fixation point in the scene image; if the target object exists and belongs to the obstacle color, the target color corresponding prompt information is displayed in the imaging module. The application identifies the target object at the fixation point of the user, and specifically prompts the color of the object observed by the user, avoids the influence on the whole visual picture, avoids the influence of the environment on the color correction, and thus the robustness of the color auxiliary identification is improved.

The invention relates to the technical field of automobile front windshield red-green color blindness correction, in particular to a novel automobile front windshield technology and scheme special for color blindness. The special optical coating is arranged on the inner side of the front windshield and used for solving the problem of red-green blindness, or the film is pasted with the special optical coating used for solving the problem of red-green blindness and used for solving the problem of red-green blindness. Or the special optical coating for solving the problem of red-green blindness is arranged on the middle interlayer of the front windshield, or the film with the special optical coating for solving the problem of red-green blindness is adhered to the middle interlayer of the front windshield.

The invention provides a color blindness detection method and head-mounted equipment. The color blindness detection method comprises the following steps: selecting and calibrating target head-mounted equipment; creating a color blindness detection image set and a display mode corresponding to the detection image set in the target head-mounted device; displaying the detection image set according to the display mode through the target head-mounted device, and guiding a to-be-detected user to answer questions according to display contents; and obtaining a detection result according to an answer result corresponding to the detection image set, and determining color blindness parameters of the to-be-detected user according to the detection results of all the detection image sets. According to the invention, automatic detection of color blindness can be rapidly realized, the consistency of detection for different users is high, and misjudgment is reduced.

The application provides a kind of corrects color blindness weak lens hydrating liquid and the hydration method of correcting color blindness weak lens, belongs to the technical field of correcting color blindness weak lens preparation.The corrects color blindness weak lens hydrating liquid provided by the application includes organic solvent, anionic surfactant and water, the volume ratio of the organic solvent and water is (3-7) :(3-7), the mass fraction of the anionic surfactant is 0.5-5%, the correcting color blindness weak lens is hydrogel lens, and the dye used is cationic dye.Using the hydrating liquid provided by the application can quickly precipitate the unreacted dye residues in the correcting color blindness weak lens.

The invention relates to a color vision correction resin lens coating material and a preparation method thereof, the coating material comprises: 30-40 parts by weight of an isocyanate compound; 15-30 parts by weight of a thiol compound; 5 to 25 parts by weight of polyvinyl butyral; 1-5 parts by weight of a photochromic solution; an initiator; a defoaming agent; and a wetting agent. The photochromic nano-composite microspheres are contained, an inner core of the photochromic nano-composite microspheres is composed of two spiropyrane compounds, and a shell of the photochromic nano-composite microspheres is coated with a modified acrylate material. The coating material has relatively high flexibility and firmness; on the other hand, the coating material can automatically filter light and complement color, and the color change complementation of the two color-changing materials is used for synergistically enhancing the red and green band spectrum color purity and the dimension of the color vision vector space, regulating and controlling the color vision abnormity and improving the color discrimination capability, so that the problem that color amblyopia and color-blindness patients wear color-blindness glasses for a long time to cause color blindness is solved. Therefore, excessive dependence on one color is caused, the visual quality is maintained, and the device has the advantages of being high in color saturation, good in color complementing effect, comfortable to wear and the like.

A system (100) for assisting a colorblind user in a vehicle is disclosed. The system (100) comprises one or more display modules (102) configured within the vehicle, which includes one or more display screens (104) capable of displaying visual elements. A data processing module (106) is configured to receive input commands from one or more users via at least one input mode in order to create one or more user profiles relating to the users. The created user profiles include at least one type of colorblindness from which the respective user suffers.Furthermore, the visual elements of the display screens (104) are dynamically adjusted when a user selects one of the user profiles by changing the colors of the visual elements based on the type of color blindness in the selected user profile, thus improving the visibility of the visual elements for the color-blind user.

Disclosed are a system and method for enhancing the visualization, classification, and / or interpretation of a photonic readout of a colorimetric assay. The colorimetric assay is associated with a defined color spectrum that includes a positive region indicative of positive test results and a negative region indicative of negative test results. The system and method operate to receive an image of the photonic readout, convert the image to a predefined color space, enhance image saturation and hue, and adjust a brightness level of the image. The system and method increase visual contrast between the negative and positive regions of the color spectrum specific to the colorimetric assay, making the readout easier to interpret for both users with normal vision and users with variations of color weakness or blindness.

Systems and methods for stereoscopic chromatic system wavelength contrasting are provided. A system comprises two filters, for filtering different wavelengths in each eye to reduce metamerism caused by color-blindness without introducing new metamers. The system may be implemented as a pair of glasses which may also be corrective, as contact lenses which may also be corrective, as ocular implants or in a virtual- or augmented- reality system. Additionally, a surgical procedure is contemplated, wherein a semi-transparent hologram is implanted in the eye to filter the colors in the eye's visual field. A method for stereoscopic chromatic wavelength contrasting is described. Over time, the method may be used to reduce metamerism without introducing new metamers. The method may further be used to assess perception of color using the systems described herein.