31 results about "Color vision deficiencies" patented technology

A color display system is provided that may be suitable for use in a navigation system. The color display system includes a controller that selects a color scheme for the images and / or text displayed by a color display device in response to an indication of the user's ability to distinguish colors. The color display system further includes a user interface arranged to exchange information with the user, which may include color vision deficiency information indicating the user's ability to distinguish colors. Using the information regarding the user's ability to distinguish colors, the color display system may be configured to modify at least one parameter of the display's color scheme in response to a user's color vision deficiency information.

Disclosed are a method of compensating colors in an image display device for users with color vision deficiency and a device of the same, enabling the users with color vision deficiency to view display images as vividly and naturally as normal users. The method for compensating colors in an image display device includes a step of determining whether a user is partially color blind or normal, and a step of controlling gain values of a plurality of color signals depending upon the user's color perceptivity so as to compensate colors displayed on a screen, if the user is determined to be partially color blind.

Disclosed are a method and a system that adaptively transform visual contents inputted from a network, in accordance with the visual characteristics of a terminal user. A visual characteristics descriptor that describes the information of the user visual characteristics in a predetermined format is proposed. The descriptor includes the information of the color vision deficiency type and the color vision deficiency degree. The color vision deficiency may be described in numerical degree or textual degree. The invention adaptively transforms visual contents differently in accordance with the color vision deficiency type.

A method for testing a plurality of regions in a color space to identify any of, or a subcombination of, the following color vision deficiencies: protanopia, deuteranopia, tritanopia, and related anomalies. A set of distractor colors is distributed across a region of color space such that the confusion line through a single target color intersects approximately the middle of the set. The distractor set spans a region extending in both chromaticity and luminance, which provides leeway for display errors since the confusion line will intersect the set even if colors do not render exactly as specified, and color deficient observers would still not be able to identify the target. A web-based implementation enables remote testing of subjects.

The present invention provides a method and apparatus for rapidly and precisely altering colors on a display device provided in the user's terminal so that a user having color vision deficiency can obtain the same color information as a normal person. The present invention enables a user having color vision deficiency to normally view all the colors displayed on a display device in such a way as to automatically diagnose color vision deficiency via the web, generate an automatic color alteration palette based on the diagnosis results, and install the automatic color alteration palette in the display device provided in a user's terminal, so as to provide altered colors to a person having color weakness as well as a color deficient person.

An input control device and an image forming apparatus capable of providing an easy-to-use operating environment even for a user having difficulties operating such conventional devices and apparatuses due to his / her height, color vision deficiency, weak vision, use of a wheelchair, and the like is disclosed. In the input control device, based on the detected distance between an instruction item on the display and an operation direction element (such as a user's finger), the display mode of the instruction item is changed (by, for example, changing positions, colors, and combinations). Further, as the operation direction element approaches, the size of the instruction item on the display becomes larger, thereby improving the operability especially for a user with color vision deficiency or weak vision.

A computer-implemented method for modifying one or more contents of an electronic learning system for a user impaired by a color vision deficiency. The method includes: generating a vision profile for the user, the vision profile indicating at least a type of the color vision deficiency, identifying, from the one or more contents, a content to be modified, the content including at least two portions formed of a first color and a second color, respectively, the first color being different from the second color but the first color being at least partially indistinguishable from the second color by the user due to the color vision deficiency, identifying a content transformation to be applied to the content based on the vision profile, the content transformation including one or more adjustments of the content to accommodate the color vision deficiency impairing the user; and applying the content transformation to the content.

An object of the present invention is to provide a visual aid network system for supporting people with color vision deficiency, using high functionality, conveniently portable size, and proliferation of mobile phones equipped with a digital camera. A visual aid network server of the present invention comprises: image data receiving means for receiving image data from a portable terminal; user data storing means for storing the image received by the image data receiving means; image color data analyzing means for obtaining the image data from the user data storing means to generate color data of the image; and color data transmitting means for transmitting the color data generated by the image color data analyzing means to the portable terminal.

The present invention relates to optical lens for correcting color vision for individuals with color vision deficiency comprising a substrate and an absorbing dye which has at least a minimum light transmission factor at a wavelength ranging from 515 nm to 80 nm that is lower than or equal to 40% and quickly varying transmission around 500 nm and around 595 nm.

The invention belongs to the teaching application field of information technology, and provides a barrier-free VR teaching resource color optimization method for people with abnormal color vision, including: (1) construction of color cognition factor system; (2) construction of color evaluation model; (3) Color scheme optimization model generation. The method of the present invention comprehensively considers the needs of people with abnormal color vision, designs various types of tasks, and analyzes color cognition differences; uses an integrated learning method to build a color evaluation model; first divides the color spots on the image, and then screens the scheme to optimize the color Program. The invention helps non-professionals design and optimize VR teaching resources to achieve universality of color schemes and meet the need for fairness of educational resources.

The present disclosure provides a display control method and device. The display control method includes: after receiving a screen lighting instruction, determining a first image displayed after the screen is turned on; displaying at least one second image, and the second image is displayed according to the specified The first image is generated and has a hue different from that of the first image; and the first image is displayed. In this technical solution, when the screen is just turned on, before the conventional display content is displayed, a number of images generated according to the conventional display content and whose hue is different from the conventional display content are firstly displayed. On the one hand, these images can assist users to test their own color vision. Users can know whether they have color vision defects by whether they can recognize and perceive the difference between the first image and the second image, or the difference between two or more second images. On the other hand, this solution can increase the time of use Interesting to improve user experience.

A color vision correction resin lens comprises a lens resin base material and an organic / inorganic nanometer composite microsphere optooptic material, the optooptic material is of an acrylate / spiropyrane / transition metal oxide nanometer microsphere three-layer composite core-shell structure, the transition metal oxide nanometer microsphere serves as an inner core of the optooptic material, a spiropyrane compound shown in the formula I is wrapped outside the transition metal oxide nanometer microsphere. The shell is made of acrylate; the mass ratio of the transition metal oxide nano microspheres to the spiropyrane to the acrylate is (2-4):(2-3):(1-2). The optooptic material has light filtering and color complementing effects in the lens. The color of the lens is darker under normal indoor light, the spectral color purity of a certain wave band and the dimension of a color vision vector space can be enhanced, the color discrimination ability of a color blindness patient is improved, color vision abnormity is corrected, the lens can rapidly fade to be light or colorless when outdoors, and it is ensured that the patient looks true objects. The resin lens has the advantages of high color saturation, good color discrimination effect, comfort in wearing and the like.

The present invention discloses a system and a method for providing color vision deficiency assistance by selectively recoloring pixels of an image frame including unperceivable colors with perceivable colors in real time. In particular, the present invention provides for rescaling the image frame using a first set of rules. Further, a perceivable color space is selected based on one or more parameters. Furthermore, one or more pixels associated with unperceivable colors are identified using a second set of rules. Yet further, the identified one or more pixels are recolored using the selected perceivable color space and a third set of rules. Finally, a corrected image frame comprising perceivable colors is provided.

A television device and an image display method thereof are provided. The television devices includes an image color converter configured to generate image data, after color conversion, wherein the image data is configured for a person with a color vision deficiency for an area which is selected based on selection area information from a terminal device which selects the area or a plurality of areas from a screen layout, a display data generator configured to generate display data based on the image data and color conversion information which is generated by the image color converter, a display configured to display the display data, and a layout information extractor configured to extract layout information corresponding to the screen layout of the image data.

Provided are an image processing system and an image processing method. According to the image processing system of the present invention, the visual effect of an image viewed by a user with abnormal color vision can be effectively improved by means of calculating a color difference energy function value of each pixel of an input image under a plurality of groups of color ratios in a lookup table corresponding to a color vision abnormity type of the current user; taking a corresponding color ratio, when the color difference energy function value of each pixel is the maximum value, as a selected color ratio of each pixel; using the selected color ratio of each pixel and a color vision abnormity degree value of the current user to process an input RGB grayscale of each pixel so as to obtain an output brightness value of each pixel; converting the output brightness value of each pixel, and an input tone value and an input saturation value in input HSI data to obtain an output RGB grayscale of each pixel; and generating an output image.