KR20080108835A - Environmental adaptation type head up display apparatus and display method thereof - Google Patents

Environmental adaptation type head up display apparatus and display method thereof Download PDF

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KR20080108835A
KR20080108835A KR1020070056898A KR20070056898A KR20080108835A KR 20080108835 A KR20080108835 A KR 20080108835A KR 1020070056898 A KR1020070056898 A KR 1020070056898A KR 20070056898 A KR20070056898 A KR 20070056898A KR 20080108835 A KR20080108835 A KR 20080108835A
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value
chromaticity
display
image
luminance
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KR1020070056898A
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Korean (ko)
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백성학
양재우
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양재우
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0136—Head-up displays characterised by optical features comprising binocular systems with a single image source for both eyes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0141—Head-up displays characterised by optical features characterised by the informative content of the display

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Abstract

An environmental adaptation type head up display apparatus and display method thereof is provided to control a chrominance value and luminance value automatically according to the change of the color of the front landscape. In an environmental adaptation type head up display apparatus, a camera sensor(101) obtains an image of the landscape which is front of the vehicles. An image abstraction unit(102) extracts the image of the section which becomes a background of the head-up on display. A color and chrominance extracting unit(103) extracts the image of the section which becomes a background of the head-up on display. A luminance comparison unit(104) compares the difference between the chrominance value and the luminance value stored in the detection unit and the chrominance value and the luminance value of diction unit.

Description

Environmental adaptation type Head Up Display apparatus and display method

1 is a block diagram showing an environmentally compatible head-up display device according to the present invention,

2 is a flowchart illustrating a display method of an environmentally compatible head-up display device according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: head-up display device 101: camera sensor

102: region image extraction unit 103: chromaticity and luminance detection unit

104: chromaticity and luminance comparison unit 105: chromaticity and luminance conversion unit

106: storage unit 107: display control unit

108: display unit 109: windshield

110: combiner 111: input unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head up display (HUD), and more particularly, to obtain a front view outside of a vehicle to automatically or manually adjust the chromaticity and brightness of display characters according to the color and brightness of the front view. The present invention relates to an environmentally compatible head-up display device and a display method thereof, which can be adjusted and displayed on a windshield of a vehicle to facilitate a driver to recognize information of the vehicle.

In general, while driving a vehicle, the driver drives while checking vehicle information such as the traveling speed of the vehicle, the rotation speed of the engine, and the fuel amount displayed on the front dashboard. However, since the instrument panel is located in front of the driver's seat by the instrument panel, the driver must bow down to check the vehicle information, and thus the occurrence of an accident is not possible because the situation of the road cannot be confirmed by the movement of the eyes in front.

Recently, a head-up display (HUD) device is used to solve the above problems. The head-up display device displays the contents of the vehicle driving and the surrounding situation information within the driver's field of view while the driver is driving, so the driver does not have to move his / her eyes to recognize the display contents.

As a conventional technology of always displaying vehicle information, Korean Patent Laid-Open Publication No. 2005-10429 discloses a 'head up display image position adjusting device'. Accordingly, the head-up display image position adjusting device includes a projector for projecting vehicle information, a reflector reflecting the image, a projecting mirror that transmits the reflected image to a windshield through a glass, and automatically changes a projection angle, and It is composed of a projection angle adjusting device that adjusts the projection angle of the projection mirror so that the vehicle information can always be displayed within the driver's field of view.

However, there is a problem in that the driver's perception of display characters on the screen is degraded according to the brightness around the vehicle or the color of the front scene outside the vehicle, which is the background on the head-up display.

In addition, as a conventional technology using a sunshine sensor, Korean Patent Laid-Open Publication No. 1998-14602 discloses a 'HUD brightness automatic adjustment device and method'. Accordingly, the HUD brightness automatic control device includes a sunshine sensor for detecting ambient brightness of a vehicle, an ECU for calculating the detected sunshine and generating / outputting a control signal, a transistor for controlling an operating power supply, and a reflection of the windshield. It consists of a VFD that reflects to the binner, providing the driver with reflected light to match the ambient brightness.

However, when the front scene, which is the background of the display area of the head-up display in the windshield of the vehicle, is changed from time to time due to the characteristics of the vehicle HUD brightness automatic control device, the background color becomes the same color as the display characters and figures on the screen. have. In this case, the visibility of display characters and the like in the screen to be headed up is markedly lowered.

In addition, as the prior art for adjusting the color and luminance, Korean Patent Laid-Open Publication No. 2004-19453 discloses a 'color and luminance adjusting device and control method of the HUD system for automobiles'. The apparatus for adjusting color and luminance according to the present invention includes a CCD camera for monitoring a display image, control means for calculating the chromaticity and luminance of the HUD system with respect to the monitored front view, and outputting a control signal, and an operating power source of the control signal. And display means for displaying a display image for vehicle information, and adjusting the chromaticity and luminance according to the front view of the display image such as letters and symbols, so that the driver can easily recognize the information of the vehicle. . However, the color and luminance adjusting device cannot be used manually, and it takes a long time because it acquires the front view twice.

Accordingly, the driver may adjust the chromaticity value and the luminance value of the characters displayed on the head-up display according to the change of the color and brightness of the front scene, which is the background on the head-up display, while driving the vehicle. There is a need for a head-up display device that facilitates recognition.

An object of the present invention for solving the above problems is to automatically or manually operate the characters displayed on the head-up display in accordance with the change in the color and brightness of the front scene, which is the background on the head-up display, the chromaticity value and There is provided an environmentally compatible head-up display device for adjusting a luminance value and a display method thereof.

According to an aspect of the present invention, there is provided an environment-based head-up display device including: a camera sensor unit configured to acquire an image of a front view of a vehicle according to a set period; A zone image extraction unit for extracting an image of a zone that is a background on a head-up display from the acquired front scene image; A chromaticity and luminance detector for detecting chromaticity and luminance values of the extracted area image; A storage unit which stores chromaticity and luminance values of characters currently displayed on the head-up display; A chromaticity and luminance comparison unit for comparing a difference value between the chromaticity value and the luminance value output from the detection unit with the chromaticity value and the luminance value stored in the storage unit and a preset reference value; A chromaticity and luminance converter for converting chromaticity values and luminance values of characters displayed on the head-up display when the difference value is smaller than a preset reference value; A display control unit which displays the converted chromaticity value and the luminance value by applying it to a character; And a display unit for reflecting a character applied from the chromaticity value and the luminance value on a display screen, and displaying the character on the combiner of the windshield.

Preferably, the camera sensor uses any one selected from CCD and CMOS.

Preferably, after the zone image extraction unit, the zone image separation unit for separating the extracted zone image into a chromaticity image and a luminance image further.

Preferably, the zone image separation unit converts the RGB chromaticity information of the extracted zone image into a color model including a YCbCr signal to separate the zone image into a chromaticity image and a luminance image.

Preferably, the chromaticity value and the luminance value are detected through an operation process including averaging the chromaticity per pixel of the area image extracted by the detection unit.

According to one or more exemplary embodiments, a display method of an environmentally-adapted head-up display device includes: a first step of obtaining an image of a front view of a vehicle; A second step of extracting an image of an area that becomes a background on the head-up display from the acquired forward scene image; Detecting a chromaticity value and a luminance value from the extracted region image; A fourth step of calculating a difference value between the detected chromaticity value and the luminance value and the chromaticity value and the luminance value of the character displayed on the current head-up display in advance; A fifth step of converting chromaticity and luminance values of characters displayed on the current head-up display when the difference value is smaller than a preset reference value; And a sixth step of applying the converted character to the received chromaticity value and luminance value and displaying the same on the head-up display.

Preferably, before acquiring the front view of the vehicle, determining whether the head-up display is in an automatic mode or a manual mode, and in the case of the automatic mode, a character is displayed on the head-up display using the stored chromaticity value and luminance value. It further includes the step of displaying.

Preferably, in the second step, a zone image including the size of the head-up display is extracted from the acquired front view image.

Preferably, the method further includes the step of separating the extracted region image into a chromaticity image and a luminance image after the second step.

Preferably, RGB color information is converted into a color model including a YCbCr signal in the extracted area image to separate the area image into a chromaticity image and a luminance image.

Preferably, the chromaticity and the luminance are detected through an operation process including averaging the chromaticity per pixel of the region extracted in the third step.

Preferably, in the fifth step, the chromaticity value and the luminance value of the converted character are converted into complementary colors with respect to the chromaticity value and the luminance value of the background displayed on the head-up display.

Preferably, in the fifth step, when the difference value is larger than a preset reference value, the chromaticity value and the luminance value currently displayed on the head-up display are maintained.

Preferably, in the first step, an image of the front view is obtained using any one selected from a CCD sensor and a CMOS sensor.

Preferably, after the seventh step, the method further includes storing the chromaticity value and the luminance value of the converted character in the storage unit.

 According to another aspect of the present invention, there is provided an environment-based head-up display method comprising: a first step of receiving a chromaticity value and a luminance value to be converted in the manual mode; Converting a chromaticity value and a luminance value of a character on the head-up display into the inputted chromaticity value and luminance value; A third step of applying driving information input to the converted chromaticity value and luminance value; And a fourth step of outputting driving information to which the converted chromaticity value and luminance value are applied and displaying the same on the head-up display.

Preferably, after the fourth step, the method further includes storing the chromaticity value and the luminance value of the converted character in the storage unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are denoted by the same reference numerals in any where possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a block diagram showing an environmentally compatible head-up display device according to the present invention.

As shown, the environmentally-friendly head-up display device 100 is a camera sensor unit 101, zone image extraction unit 102, chromaticity and luminance detection unit 103, chromaticity and luminance comparison unit 104, chromaticity and The luminance converter 105 includes a brightness converter 105, a storage 106, a display controller 107, a display 108, and an input 111.

The camera sensor unit 101 is installed at a place similar to a driver's field of view and acquires a wide range of images of the front view of the vehicle as a background on a head up display (HUD).

At this time, the camera sensor unit 101 uses a Charge Coupled Device (CCD) camera sensor or a Complementary Metal Oxide Semiconductor (CMOS) camera sensor, and a cross-shaped figure indicating the screen area position at the time of initialization is located at the center of the head-up display. Is displayed.

The camera including the CCD camera sensor is a photoelectric conversion device camera, which converts light from the lens into an analog signal through the CCD device, and converts the analog signal into a digital signal through an analog-to-digital converter (ADC). It is a camera that can be combined into a desired digital picture by a processor built into the camera and stored in memory.

In addition, the camera including the CMOS camera sensor is an optical camera that receives the light from the subject and converts the analog signal into a digital signal therein and outputs a digital image signal.

The zone image extractor 102 designates and extracts a predetermined pixel interval within a range including a portion of the front view image of the vehicle to be the screen background on the head-up display.

In addition, the image may be designated and extracted by a predetermined pixel interval in a range including a portion of the screen background on the head-up display based on the figure indicating the screen region position in the acquired front view image of the vehicle.

The chromaticity and luminance detector 103 detects a background chromaticity value and a luminance value through an arithmetic process such as averaging the chromaticity per pixel of the zone image extracted by the zone image extractor 102.

That is, the chroma (Red, R), blue (B), and green (G) chromaticity values for each pixel of the zone image are classified into 256 (= 2 8 ) grades and have a value between 0 and 255. This is a case where the R, G, and B chromaticity values of the pixels of the zone image are all 255 when any specific pixel of the acquired zone image is white, and any specific pixel of the acquired zone image is black. In this case, the R, G, and B chromaticity values of the pixels of the zone image are all zero. Therefore, since the color is converted into R, G, and B chromaticity values for each pixel corresponding to the color of the acquired image image, the chromaticity value is detected by obtaining an average of the R, G, and B chromaticity values for each pixel. In addition, the luminance value is also obtained by detecting the average of the luminance values.

Here, it should be noted that in the present invention, as an exemplary embodiment, the R, G, and B chromaticity values of pixels of the area image are classified into 256 (= 2 8 ) grades, but may be classified into various grades.

R, G, B chromaticity information of the zone image extracted by the zone image extraction unit 102 is converted into a color model including a YCbCr signal according to the following equation, and the YCbCr signal is converted into a luminance (Y) image signal and a chromaticity (Cb, A zone image separation unit for separating the image signal into Cr) can be installed.

<CCIR-601 YCbCr Color Space Conversion Formula>

Y = (77R + 150G + 29B) / 256 Range: 16 ~ 235

Cb = (-44R-87G + 131B) / 256 + 128 Range: 16 ~ 240

Cr = (131R-110G-21B) / 256 + 128 Range: 16 ~ 240

The chromaticity and luminance comparison unit 104 calculates in advance the difference between the luminance value and the chromaticity value output from the chromaticity and luminance detection unit 103 and the luminance value and the chromaticity value of the character stored in the storage unit 106 described later. It is determined whether to convert the chromaticity value and the luminance value of the character by comparing with the set reference value.

If the difference value is smaller than a preset reference value, the luminance value and chromaticity value of the front view value are similar to the luminance value and chromaticity value of the character, so that the driver cannot confirm the character displayed on the head-up display, so that the luminance value of the character is And convert the chromaticity value by adjusting the chromaticity value, and the converted chromaticity value and the luminance value may be expressed in complementary colors with respect to the chromaticity value and the luminance value of the front view image displayed as a background on the head-up display.

In addition, when the difference value is greater than a preset reference value, the brightness value and chromaticity value of the front view value are significantly different from the brightness value and chromaticity value of the character, so that the driver can easily check the character displayed on the head-up display. Therefore, the chromaticity and luminance values of the characters are kept unchanged.

The preset reference value means a value that does not interfere with the driver's field of view and may vary according to a setting.

The chromaticity and luminance converter 105 converts the chromaticity value and the luminance value from the case where the chromaticity and luminance comparison unit 104 determines that the chromaticity value and the luminance value of the character should be converted in the automatic mode. In the manual mode, the input unit 111 to be described later receives a chromaticity value and a luminance value to be converted by using a button or the like.

The chromaticity value is controlled by D / A conversion, and the luminance value is converted by adjusting the duty ratio of PWM (Pulse Width Modulator) according to the brightness of the exterior of the vehicle.

When the brightness is adjusted, when the brightness of the exterior of the vehicle is bright, the operation power is increased because the PWM generates a large duty ratio and output. On the contrary, when the brightness of the exterior of the vehicle is dark, the operating power is reduced by generating the PWM having a small duty ratio. . Therefore, the luminance value may be adjusted by the operating power supplied at different levels according to the brightness of the outside of the vehicle.

The storage unit 106 stores the converted chromaticity value and luminance value displayed on the head-up display via the display unit 108 in which the chromaticity value and the luminance value converted by the chromaticity and luminance converter 105 are described later. The chromaticity and luminance values of the characters, which are frequently converted by the chromaticity and luminance converter 105, are stored each time they are converted.

In addition, the chromaticity value and the luminance value of the character stored in the storage unit 106 are used when calculating the difference value between the chromaticity value and the luminance value of the front view of the chromaticity and luminance comparison unit 104.

By storing all the chromaticity values and luminance values obtained by the chromaticity and luminance converter 105 to construct a database (DB) for the chromaticity values and the luminance values, the chromaticity and luminance values are converted by the chromaticity and luminance converter 105. When adjusting the value, it can be adjusted based on the chromaticity value and the luminance value stored in the DB.

On the other hand, when the vehicle is turned on (ON), the head-up display is initialized with the chromaticity value and the luminance value stored in the storage unit 106 just before the startup is turned off.

The display control unit 107 receives the chromaticity value and the luminance value for the character from the chromaticity and luminance conversion unit 105, receives the driving information, and displays the chromaticity value and the luminance value in the character including the driving information that varies according to the situation. Apply to output chroma signal and luminance signal.

The characters may refer to all characters that can be displayed on the head-up display such as general characters, special characters, and figures. The driving information is not shown in the drawings, but the vehicle control system BCM (Body Control Module), speed, RPM , Indoor and outdoor temperature, fuel flow rate, and the like.

The display unit 108 is the chroma signal output from the display control unit 107 is applied to the LCD, the luminance signal is applied to the light source when the light emitted from the light source the chroma signal and the luminance signal through the LCD The combiner 110 of the windshield 109 is displayed. The light source preferably comprises an LED.

When the driver inputs a desired chromaticity value and luminance value by using a button, a touch screen, a remote controller, or the like, the color and brightness are converted into the chromaticity value and the luminance value by the chromaticity and luminance converter 105. Adjust to change.

2 is a flowchart illustrating a control method of an environmentally compatible head-up display device according to the present invention.

As shown, step (S103) of installing a camera including a CCD or CMOS camera sensor in a place similar to the driver's field of view to obtain a wide range of images of the front view of the vehicle as the background of the display area on the head-up display (S103) and And specifying and extracting a predetermined pixel interval so as to include a portion that becomes the background of the display area on the head-up display in the front view image of the vehicle acquired by the camera sensor (S104), and for each pixel of the extracted region image. Detecting a background chromaticity value and a luminance value through an arithmetic operation such as averaging chromaticity (S106), the luminance value and chromaticity value detected and output in step S106, and the luminance value of a character stored in a storage unit and Calculating a difference value with a chromaticity value (S107), and comparing the difference value with a preset reference value and converting the chromaticity value and the luminance value of the character; (S108) and, if the difference value is smaller than a predetermined reference value, the brightness value and chromaticity value of the front view are similar to the brightness value and chromaticity value of the text, so that the driver cannot check the text. Controlling and converting the luminance value and the chromaticity value of the control unit (S109), applying the converted chromaticity value and the luminance value to the text including the received driving information (S110), and converting the text including the driving information into the text. In operation S111, the converted chromaticity value and the luminance value applied are output and displayed on the head-up display.

Before the step S103, determining whether the head-up display is in an automatic mode or a manual mode (S101); and in the case of the automatic mode, an initialization step of displaying characters on the head-up display using the stored chromaticity and luminance values ( S102) may be further included.

After the step S104, the extracted R, G, B chromaticity information of the extracted region image is converted into a color model including a YCbCr signal, and the YCbCr signal is converted into a luminance (Y) image signal and a chromaticity (Cb, Cr) image signal. Separating step S105 may be further included.

In addition, after the step S111, the chromaticity value and the luminance value of the character, which are frequently converted in the step S109, are displayed on the head-up display and store the converted chromaticity value and the luminance value displayed on the head-up display. Step S112 may be further included.

As shown in FIG. 2, in the case of the manual mode in step S101, receiving a chromaticity value and a luminance value to be converted on the head-up display (S201), and a chromaticity value and a luminance value of a character on the head-up display. Converting the image into the input chromaticity value and the luminance value (S202), applying the input operation information to the converted chromaticity value and the luminance value (S203), and applying the converted chromaticity value and the luminance value. The operation information is outputted and displayed on the head-up display (S204).

After the step S205, the chromaticity value and the luminance value of the character which are frequently converted in the step S202 are displayed on the head-up display, and storing the converted chromaticity value and the luminance value displayed on the head-up display ( S205) may be further included.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications and other equivalents without departing from the gist of the present invention attached to the claims. Implementation will be possible. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

According to the present invention described above, the environmentally compatible head-up display device includes a camera sensor unit, zone image extraction unit, chromaticity and luminance detection unit, chromaticity and luminance comparison unit, chromaticity and luminance conversion unit, storage unit, display control unit and display unit Thus, the driver does not use a separate illuminance sensor and adjusts the chromaticity and luminance values of the characters displayed on the head-up display automatically or manually according to the change in chromaticity and luminance of the front view of the vehicle. It can be made easy to recognize the driving information.

In addition, when the driver checks the driving information, the driver does not move his / her eyesight, so it is helpful for safe driving.

Claims (17)

In the head-up display device displaying a character including the driving information of the vehicle, A camera sensor unit configured to acquire an image of the front view of the vehicle according to a set period; A zone image extraction unit for extracting an image of a zone that is a background on a head-up display (HUD) from the acquired front view image; A chromaticity and luminance detector for detecting chromaticity and luminance values of the extracted area image; A storage unit which stores chromaticity and luminance values of characters currently displayed on the head-up display; A chromaticity and luminance comparison unit for comparing a difference value between the chromaticity value and the luminance value output from the detection unit with the chromaticity value and the luminance value stored in the storage unit and a preset reference value; A chromaticity and luminance conversion unit for converting chromaticity values and luminance values of characters displayed on the head-up display when the difference value is smaller than the preset reference value; A display control unit which displays the converted chromaticity value and luminance value by applying it to a character; And And a display unit for reflecting a character applied from the chromaticity value and the luminance value on a display screen and displaying the character on the combiner of the windshield. The method of claim 1, And the camera sensor uses any one selected from a CCD and a CMOS. The method of claim 1, After the zone image extraction unit, the head image display further comprises a zone image separation unit for separating the extracted zone image into a chromaticity image and a luminance image. The method of claim 3, wherein The zone image separating unit converts the RGB chromaticity information of the extracted zone image into a color model including a YCbCr signal, and divides the zone image into a chromaticity image and a luminance image. The method of claim 1, And an chromaticity value and a luminance value through an arithmetic process including averaging chromaticities per pixel of the area image extracted by the detection unit. In the head-up display display method that displays characters including driving information of the vehicle, A first step of obtaining an image of the front view of the vehicle; A second step of extracting an image of an area that becomes a background on the head-up display (HUD) from the acquired front view image; Detecting a chromaticity value and a luminance value from the extracted region image; A fourth step of calculating a difference value between the detected chromaticity value and the luminance value and the chromaticity value and the luminance value of the character displayed on the current head-up display in advance; A fifth step of converting chromaticity and luminance values of characters displayed on the current head-up display when the difference value is smaller than a preset reference value; And And a sixth step of applying the converted chromaticity value and luminance value to the received character and displaying the same on the head-up display. The method of claim 6, Determining whether the head-up display is in the automatic mode or the manual mode before acquiring the front view of the vehicle, and displaying the text on the head-up display using the pre-stored chromaticity value and luminance value in the automatic mode. An environmentally-adapted head-up display display method further comprising. The method of claim 6, The second step is an environmentally-adapted head-up display display method, characterized in that for extracting the area image including the size of the head-up display from the obtained front view image. The method of claim 6, And separating the extracted region image into a chromaticity image and a luminance image after the second step. The method of claim 9, And converting the RGB chromaticity information from the extracted region image into a color model including a YCbCr signal to separate the region image into a chromaticity image and a luminance image. The method of claim 6, And detecting chromaticity and luminance through an arithmetic process comprising averaging chromaticities per pixel of the region extracted in the third step. The method of claim 6, In the fifth step, the chromaticity value and the luminance value of the converted character are converted into complementary colors with respect to the chromaticity value and the luminance value of the background displayed on the head-up display. The method of claim 6, And in step 5, if the difference is greater than a preset reference value, the chromaticity value and the luminance value currently displayed on the head-up display are maintained. The method of claim 6, The first step is an environment-adaptive head-up display display method characterized in that to obtain the image of the front view using any one selected from the CCD sensor and the CMOS sensor. The method of claim 6, And after the sixth step, storing the chromaticity value and the luminance value of the converted character as the chromaticity value and the luminance value applied on the current head-up display. Way. In the head-up display display method that displays characters including driving information of the vehicle, A first step of receiving a chromaticity value and a luminance value to be converted; Converting a chromaticity value and a luminance value of a character on the head-up display (HUD) into the inputted chromaticity value and luminance value; A third step of applying the converted chromaticity value and luminance value to the received character; And And outputting a character to which the converted chromaticity value and luminance value are applied and displaying the same on a head-up display. The method of claim 16, And after the fourth step, storing the chromaticity value and the luminance value of the converted character as the chromaticity value and the luminance value applied on the current head-up display. Way.
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GB2465470A (en) * 2008-11-18 2010-05-26 Bosch Gmbh Robert Head up device which can vary the image according to the background
KR101349681B1 (en) * 2012-12-20 2014-01-13 현대오트론 주식회사 Apparatus and method for confirming vehicle information using head up display
KR101511587B1 (en) * 2013-12-12 2015-04-14 현대오트론 주식회사 Apparatus for displaying information of head-up display and method thereof
KR20160069578A (en) * 2014-12-08 2016-06-17 현대오트론 주식회사 Apparatus and method for controlling output of head up display image
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JP2017161750A (en) * 2016-03-10 2017-09-14 アルプス電気株式会社 Head-up display device
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CN110194108A (en) * 2019-05-29 2019-09-03 中国第一汽车股份有限公司 Display color regulation method, head-up-display system and the vehicle of head-up-display system
CN114092319A (en) * 2021-11-09 2022-02-25 英博超算(南京)科技有限公司 Brightness equalization method for 360-degree panoramic display of automobile
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Publication number Priority date Publication date Assignee Title
GB2465470A (en) * 2008-11-18 2010-05-26 Bosch Gmbh Robert Head up device which can vary the image according to the background
GB2465470B (en) * 2008-11-18 2011-11-16 Bosch Gmbh Robert Method and control device for determining photometric parameters of a projectable character
KR101349681B1 (en) * 2012-12-20 2014-01-13 현대오트론 주식회사 Apparatus and method for confirming vehicle information using head up display
KR101511587B1 (en) * 2013-12-12 2015-04-14 현대오트론 주식회사 Apparatus for displaying information of head-up display and method thereof
US9598013B2 (en) 2013-12-12 2017-03-21 Hyundai Autron Co., Ltd. Device and method for displaying head-up display (HUD) information
KR20160069578A (en) * 2014-12-08 2016-06-17 현대오트론 주식회사 Apparatus and method for controlling output of head up display image
JP2017142491A (en) * 2016-02-10 2017-08-17 株式会社リコー Image display device and image display method
JP2017161750A (en) * 2016-03-10 2017-09-14 アルプス電気株式会社 Head-up display device
KR20180120470A (en) * 2017-04-27 2018-11-06 현대모비스 주식회사 Method and appratus for enhancing visibility of HUD contents
CN110194108A (en) * 2019-05-29 2019-09-03 中国第一汽车股份有限公司 Display color regulation method, head-up-display system and the vehicle of head-up-display system
CN114092319A (en) * 2021-11-09 2022-02-25 英博超算(南京)科技有限公司 Brightness equalization method for 360-degree panoramic display of automobile
CN114092319B (en) * 2021-11-09 2024-05-14 英博超算(南京)科技有限公司 Luminance balancing method for 360-degree panoramic display of automobile
CN116095289A (en) * 2023-02-06 2023-05-09 江苏泽景汽车电子股份有限公司 HUD display method, HUD display device and storage medium

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