KR20170050416A - Color Vision Correction Methods for Providing Digital Maps of Car Navigation - Google Patents

Abstract

The present invention relates to a color vision correction digital map providing method for a vehicle navigation device. More specifically, the color vision correction digital map providing method for a vehicle navigation device comprises: a first step of storing data in which elements by each color vision type of a navigation user are divided and web color palette data by each color vision type in a navigation device; a second step of dividing an indication class of a digital map displayed on the navigation device into an information element and a background element; a third step of generating an RGB code change value corresponding to a matching value by matching the element by each color vision type of the navigation user in the web color palette data by each color vision type in the navigation device; and a fourth step of correcting and applying the RGB code change value to a color model corresponding to the information element among the indication class of the digital map by the navigation device, displaying the digital map by applying brightness and saturation values of a predetermined range to the color model corresponding to the background element. The color vision correction digital map providing method for a vehicle navigation device is able to provide a service optimized for transmission of intended sensitivity and correction of the color vision of information recognition in a navigation map environment for the navigation user.

Description

Technical Field [0001] The present invention relates to a color vision correction method,

[0001] The present invention relates to a method of providing a digital map for color-correcting a vehicle navigation, and more particularly, to a navigation system for vehicle navigation, which stores data classified by a color-tone type element of the navigation user and web color palette data by color- A method of providing a digital map of a vehicle navigation system for correcting color tone of a navigation digital map by matching elements of the color tone type of the user based on web color palette data of each color type to a color model of a display type of a navigation digital map, .

Since color plays an important role in human perception of information, it often uses color appropriately for effective communication. In most cases, however, it is rare to consider elderly people or people with color vision difficulties who are having difficulty in recognizing color because they are based on the basic idea that the human visual system is all the same. In the case of developed countries, universal design considering visual characteristics is mandatory for public design or public cultural service, considering social weakness such as elderly people and color vision defects. However, in Korea, the problem of color universal As a solution to this problem, researches on color conversion standards of color conversion technology for color blind people are under way.

Also, there is a need for a technique for providing fast and effective color correction digital map of vehicle navigation to a user who has some color blindness among ordinary people as well as the elderly or color vision aberration.

As a conventional technique for solving the above problems, a method and system for adaptively converting visual contents to color characteristics of terminal users are known, as disclosed in Korean Patent Laid-Open No. 10-2005-0023244.

However, the known art provides a method and system for receiving color characteristic information from a user and adaptively converting and outputting visual content according to a color characteristic of an input user. The method includes: detecting RGB to LMS of an input visual content pixel; There is a disadvantage that a complicated algorithm such as RGB to HIS conversion of the detection area pixel and modified HIS to RGB is applied. The application of such a complicated algorithm has a heavy load on the processor and is limited to a specific process such as navigation.

Therefore, there is a demand for a method of providing digital map of color correction of vehicle navigation, which is intuitive and easy to service by matching the digital map inherent coloring model to the web color pallet data by color type.

In order to solve the above-described problems, the present invention has been applied to a display type digital map coloring model using a web color palette data for each elderly person or a navigation user having a color vision abnormality, And to provide the navigation user with an optimal display state for accurate cognitive effect.

The present invention also provides a digital map for correcting the color of the digital map display type for cognition optimization in the visualized state by classifying the display elements of the navigation digital map for the vehicle into objective and subjective elements according to efficiency of the information recognition aspect There is another purpose.

According to another aspect of the present invention, there is provided a method of providing a digital map of a navigation system for a vehicle, the method comprising the steps of: storing web color palette data classified by a color- A second step of dividing the display type of the displayed digital map by an information element and a background element, the navigation matching an element of each color type of the navigation user in the web color pallet data by the color type, And a color model corresponding to the background element is applied to a predetermined range of the color code corresponding to the information element in the display range of the digital map, Lt; RTI ID = 0.0 > brightness < / RTI > As yirueojim through the fourth step of displaying a digital map, if the navigation map information of the navigation experience for the user is achieved and wherein to provide a service optimized for color vision correction and the transfer of the intended sensitivity of the side.

Accordingly, the present invention provides a method of providing a digital map of a color correction map of a car navigation system, comprising: applying a matching value to a digital map color model using web color palette data of each color type, There is provided an effect of providing a digital map display state.

In addition, the present invention guarantees the accessibility of navigation to the elderly and the users having a color vision abnormality of about 12% around the world in the area where the color symbol is recognized as information, and provides the customized color map of the digital map intended by the map service subject There is an effect of improving the performance satisfaction.

FIG. 1 is a flowchart of a method of providing a digital map of a vehicle navigation system according to an embodiment of the present invention,
FIG. 2 is a diagram illustrating an example of a color-tone anomaly classification according to an embodiment of the present invention,
3 is a diagram illustrating a portion of web color palette data by color type according to an exemplary embodiment of the present invention.
4 is an exemplary view showing a configuration of a digital map of a navigation system for a vehicle according to an embodiment of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall flowchart of a method for providing a digital map of a color map for vehicle navigation according to an embodiment of the present invention.

As shown in the figure, the present invention provides a digital map providing method for a vehicle navigation system, comprising: a first step (S110) of storing a web color palette according to color information and a color type of a navigation user; (S120) of separating the HEX code corresponding to the information element of the digital map displayed in the navigation into the web color palette according to the hue type and the hue information of the user, And a fourth step (S140) of displaying a color map-corrected digital map.

This step will be described in detail as follows.

The first step S 110 is a step of storing data classified by the color-tone type elements of the navigation user into the navigation and web color palette data by color-type.

At this time, the navigation of the present invention basically includes a general navigation function, divides the display type of the displayed digital map into information elements and background elements, stores web color palette data for each color type, And correcting the hue information based on the color matching model.

In addition, the elements of the navigation user's color-tone type are the types of red-green-blind that can not distinguish between red and green when the user recognizes colors through a cone cell or cone cell, which is one of the photoreceptors in the retina, , Or a type of characteristic element for any one of the types of bluish-color blindness that can not distinguish yellow from one another or the type of blindness that recognizes color information only in contrast and can not distinguish colors at all.

Various methods can be used to classify the characteristic elements for each color type. FIG. 2 is a diagram illustrating an example of a color-tone anomaly classification according to an exemplary embodiment of the present invention. Referring to FIG. 2, typical color-tone type elements are denoted by the following names.

It is expressed as C type (normal hue), A type (chromatic blindness), P type (first ideal), D type (second ideal) and T type (third and above) Most types of color vision abnormalities are 'P-type' and 'D-type', and 'T-type' is relatively few.

Therefore, after perceptual difference of color which is an element of each color type of the navigation user is simulated, the user's color type is stored in the navigation.

In addition, in the first step S110, the navigation stores web color palette data for each color type.

The web color pallet data for each color type can be classified into red color (P type), green color type (D type), blue color type (T type) by using 'VischeckPS version 1.01' plugin in Adobe Illustrator CS 2.0 program, HSB 'or' L * a * b * 'value by applying the simulation result to each color type.

The Gamma value applied to the simulation is 240, which is the default value of the Visec plugin, and the sRGB IEC61966-2.1 applied to the Illustrator program color space.

3 is a diagram illustrating a portion of a table of L * a * b types of color pallet data for each color type according to an exemplary embodiment of the present invention. Referring to FIG. 3, As shown in Fig. The color palette data for each type of color hue refers to the research data issued by the Korean Society of Color Society in 2014 and the reliable data listed in KCI. In the present invention, a data table summarized by L * a * b * values is exemplified, but a data table summarized by L * a * b * value and a data table summarized by HSB table may be used.

Therefore, through the process up to the first step S110, the navigation color color type palette data of the navigation user by the color tone type and the color color palette data by the color tone type are stored in the memory.

The second step S 120 is a step of dividing the display type of the digital map displayed in the navigation into the information element and the background element in the navigation.

4 shows a digital map of a navigation system for a vehicle according to an embodiment of the present invention.

As shown in the drawing, according to the present invention, the information elements among the display types of the digital map displayed on the navigation are classified into a Route Guide, ICON & NAME data (icon and cycle) and TMC Which is an objective color element including a transportation movement control line.

In the present invention, the background elements of the display types of the digital map displayed on the navigation system include Elevation Contours (altitude contour / contour) that act emotionally on the digital map, built up areas (urban planning area), Woodland, park Any one or more of any of the following: Cemetery, Canal / Water Channel, Bay / Harbor, Lake, Town Block or Buildings. Color elements.

In the third step S130, the navigation generates the RGB code conversion value corresponding to the matching value by matching elements of the color-tone type of the navigation user from the color palette data of each color type.

The third step S130 includes a third step S131 of extracting a coloring model Hexa code of the information element of the digital map and a color palette data of the color type, A color matching model Hexa code of the information element of the digital map and an element of the navigation user by the type of color tone are matched to the L * a * b table in the web color palette data by the color type; (step S133) of converting the * a * b value into a color space value of X, Y, and Z, and a third step (S134) of converting the XYZ value into RGB code.

For example, when the coloring model Hexa code of the information element of the digital map is # CC9999, which is the first in the L * a * b table for each color type, and the elements of the navigation type are P types 65, 2, and 3 , The RGB code conversion value is generated as 164,156,152 by calculation.

The CIE-L * a * b color system in the third-third step (S133) for converting the L * a * b value into the XYZ value is converted into the XYZ color space value and the XYZ color space value is converted into the RGB code The RGB code conversion of the X, Y, and Z color space values in the third to fourth step (S134) for converting may be performed through a color conversion program for applying a software operation in the navigation.

After the RGB conversion value is generated as described above, the fourth step (S140) corrects the RGB code conversion value to the coloring model in which the navigation corresponds to the information element during the display type of the digital map, And display the digital map.

In the fourth step (S140), the digital map is applied by applying a certain brightness and chroma to the color model corresponding to the background element. At this time, the background color of the digital map classified into the subjective color element The brightness of the color is less than or equal to 40% and the saturation of the color is less than or equal to 20%. Thus, ) Tone to display the digital map.

This is because, if the subjective color component corresponding to the background element is less than 40% in brightness and less than 20% in chroma, the difference in color is not remarkable, so that it does not seem to be greatly contrasted to a normal person as well as a color defect.

Therefore, the present invention provides a digital map for color correction of a navigation system for a vehicle, which is optimized for transmission of an intended or perceived color correction and intended emotion of the navigation guidance environment for a navigation user.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

Claims (5)

A digital map providing method for a vehicle navigation system,
A first step of storing web color palette data classified by color type and data obtained by dividing elements of the navigation user by color type into the navigation,
A second step of dividing the display type of the digital map displayed in the navigation into the information element and the background element in the navigation,
A third step of the navigation to generate an RGB code conversion value corresponding to a matching value by matching elements of the color-tone type of the navigation user from the web color palette data of each color type,
The RGB code conversion value is corrected and applied to a coloring model in which the navigation corresponds to the information element during the display type of the digital map, and the coloring model corresponding to the background element applies a certain range of brightness and saturation values And displaying the digital map on the display unit.
The method according to claim 1,
The information element of the digital map is an objective color element which is intelligent information which is information including a function or a symbolically acting Route Guide, ICON & NAME data (icon and cycle) and a TMC (Transportation Movement Control) line Wherein the digital map is a digital map of a car navigation system.
The method according to claim 1,
The background elements of the digital map are: Elevation Contours, Built up areas, Woodland, Park, Cemetery, Canal / Water Channel, wherein the color map is a subjective color element that is at least one of a bay, a bay, a lake, a town block, or a building.
The method of claim 3,
The background factor of the digital map classified by the subjective color element is replaced by a value within a range of 0 to 40% and a saturation value in a range of 0 to 20% Wherein the color map is a map of a vehicle.
The method according to claim 1,
A third step of extracting a color model Hexa code of the information element of the digital map,
A 3-2 step of matching the coloring model Hexa code of the information element of the digital map and the L * a * b table of each type of coloring element of the navigation user in the web color pallet data for each color type,
A third step of converting the matched L * a * b value into an XYZ value;
And converting the XYZ values into RGB codes. The method of claim 1, further comprising:

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