KR20140138516A

KR20140138516A - Smart glasses

Info

Publication number: KR20140138516A
Application number: KR1020130059334A
Authority: KR
Inventors: 임창주; 손형률; 정윤근; 박기현
Original assignee: 테크빌닷컴 주식회사; 한국산업기술대학교산학협력단; (주) 미디어인터랙티브
Priority date: 2013-05-24
Filing date: 2013-05-24
Publication date: 2014-12-04

Abstract

The present invention relates to smart glasses. The smart glasses according to the present invention comprise a chromatic lens.

Description

Smart glasses {SMART GLASSES}

The present invention relates to smart glasses.

In Google Glass, which is currently being prepared for release, a display used as shown in FIG. 1 is attached to glasses or preparing a smart glass frame for a person who does not use the glass. Using smart glasses with sunglasses is more free from ultraviolet rays, but AR objects in smart glasses can not be seen clearly.

Also, people who use only smart glasses without glasses do not use smart glasses properly in weather with strong ultraviolet rays.

In using spectacles of the glasses type, it is aimed to make the AR Object more clear by using a discoloration lens that changes with intensity or temperature of ultraviolet rays by attaching a discoloration lens instead of a transparent display in the past .

According to a first technical aspect of the present invention, in using a spectacle type smart glass, it is proposed to attach a discoloration lens instead of a transparent display.

According to the present invention, the AR object can be seen more clearly by using a color-changing lens that varies depending on the intensity or temperature of ultraviolet rays.

Figs. 1 and 2 are diagrams for explaining the prior art.
3 is a block diagram for explaining the present invention.

Discoloration lens

A transparent lens is applied to a smart glass according to the amount of ultraviolet rays, and the color of the color-changing lens is changed in the range of -15 to 70 캜.

- Provides the function of interpolating the color of the object (AR Object & Text) when using the discoloration lens. When a discoloration lens changes to a dark background that blocks ultraviolet light in a bright spot, Smart Objects also transforms a black letter from a conventional transparent background into a white letter on a black background.

This allows the user to see the object indoors or outdoors clearly.

- In addition, the glass display form factor can visually cause fatigue or inconvenience due to the difference in the focal length of the eyes or the inconsistency of the eyes, and the UI position through the display attached to the tip of the right eye. - Hold one finger on the legs of your glasses, There is a problem that the posture that is raised can make the other's feelings worse. These problems can be solved by blocking the user's gaze with a discoloration lens.

In addition, it protects the eyes by preventing the glare at the time of the user's driving and leisure activities, and can produce a variety of colors with one discoloration lens to satisfy the aesthetic sense.

- Exposure to ultraviolet rays outdoors causes changes in the molecular arrangement of the lens material and changes in color.

- The shade changes according to the outdoor light condition, so that the light reaching the eye is always adjusted appropriately

- Even at the same time, ultraviolet rays and temperature may vary depending on the place. (For example, if you ran a bicycle in the Han River 30 minutes ago and now you are on the asphalt)

Refer to the figure below for UV exposure level.

As shown in the figure below, the highest amount of UV rays during the day is from 10 am to 4 pm. In other words, the highest concentration increases in the daytime, which gives a strong ultraviolet ray condition, and the changing reaction speed is fast.

- The color of the discoloration lens is affected by various external environment such as ultraviolet ray, temperature, humidity.

- The ultraviolet intensity of the cloudy day is 50% of the sunny day and the misty day is 10%.

- As the summer approaches, the sunlight shines, and the ultraviolet light increases.

- The Sun's altitude is high in spring and summer, and the UV index is rising. (Seasonal ultraviolet dose is summer> spring> autumn> winter)

- Color Interpolation of AR Object & Text is different from color affected by external environment such as ultraviolet rays, temperature, humidity, and various colors. Interpolating color according to darkness and brightness according to various places, time, and weather

- Use algorithms such as Gray-World (GW), Perfect reflector (MAX-RGB), Gamut mapping, and Color by correlation as methods to maintain color consistency in various places, time,

- Maintain consistency of color -> Estimate hue of image to be displayed on smart glasses screen:

- According to the color distribution of the discoloration lens according to the amount of ultraviolet ray, the process of making the object appear more clearly by applying the white balance algorithm differently (as shown below)

The color tone estimation of the image described in this patent is to maintain the color consistency by changing the brightness and chroma of the object. That is, in order to maintain color consistency, it is possible to change the brightness and chromaticity of the object (object) according to the darkness and brightness of the color-changing lens (by using the white balance algorithm), so that the object can be seen more clearly even when the lens is dark.

The process of dividing according to the color distribution criterion is as follows.

The image having a color distribution smaller than the threshold value is determined as an image having a different color distribution and the image having a color distribution smaller than the threshold value is determined as an image having a smaller color distribution. In the white balance adjustment method,

l dB - dG l < th1B

In the above equation, dR, dG, and dB are the number of pixels having the erectile value of the image to which the white balance algorithm is applied for each channel except for the number of pixels having the brightness values of the upper and lower b% The difference between the maximum value and the minimum value.

The different ways of applying white balancing according to the color distribution are as follows.

A step of estimating a color temperature value by converting an average value of all the images into x and y domains when the image has a variety of color distributions; and detecting an achromatic color region using the estimated color temperature value A white balance adjustment method is used.

Interpolates AR Object & Text color with automatic white balance to reproduce color images most naturally in human eyes

1. Predict the gray position by using the relationship between RGB channels and luminance values for color images at various temperatures

2. Obtain an adaptive gain according to the luminance by using the RGB channel values in the predicted gray position

3. Improved AR Object & Text image is obtained by applying gain according to luminance to original image.

- The discoloration lens darkens the color according to the amount of ultraviolet rays. External environmental conditions such as light, temperature, and location are factors of high and low UV rays. The amount of ultraviolet ray is an important condition. As shown in FIG. 3, the ultraviolet ray sensor measures the amount of ultraviolet ray due to external environmental factors such as user's place, time, weather,

According to the present invention, in using the color-changing lens, the color of the object (AR Object & Text) is interpolated according to the darkness of the lens and the brightness of the lens.

- For example, in order to block ultraviolet rays in a bright place, the object may not be seen if the lens is dark. Therefore, the brightness of the object can be changed in several steps according to the darkness and brightness of the color-changing lens Or you can change the color of the object).

That is, when the color of the color-changing lens is dark, the brightness of the object is made high. When the color of the color-changing lens is bright, the brightness of the object is low and the color of the color-changing lens and brightness of the object can be changed in inverse proportion to the amount of ultraviolet light.

You can apply the white balance algorithm to the display by analyzing the image histogram of the discoloration lens as shown below.

-Text can be made more clear by calibrating the brightness, and the figure below shows the white balance adjustment method (hue estimation) applied to the AR Object.

On the other hand, the Gray-World (GW) algorithm is as follows.

The GW algorithm is based on the assumption that the average value of the whole image is on the gray axis. This method uses the average value of all the pixels of the image, so it is possible to estimate and correct the illumination of the image easily. Since there is a high probability that the average value of all the pixels in the input image is in the gray axis when there are various colors, this algorithm can operate efficiently (http://ba.racoma.com.ph/2010/09/ activity-12-color-image-processing /).

Claims

Smart glasses that contain discoloration lenses.