KR101650437B1 - Projection for outputting real size - Google Patents

Abstract

The present invention relates to a projector for a full-scale output, and more particularly, to a projector for a full-scale output, which comprises an image information input unit for receiving image information including a real size, brightness and color of an image together with the image, a storage unit for storing image information and images, A distance sensor for measuring the distance, a distance sensor for measuring the distance, a distance sensor for measuring the distance, an illuminance sensor for sensing the distance, a motor control signal and a projection angle control signal corresponding to the distance information outputted from the distance measuring device, A motor for moving the projector in response to the motor control signal, an image control unit for adjusting color and resolution in accordance with the projection angle control signal, the brightness information, and the color information, And outputting an image corresponding to the color information and the resolution information. According to the present invention, it is possible to maximize the reality by outputting the size of the object in the image as a real size.

Description

{PROJECTION FOR OUTPUTING REAL SIZE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a projector for a full-scale output, and more particularly, to a projector for a full-scale output capable of real-scale image output with minimized distortion.

Display devices for outputting images include flat panel displays, projectors, and the like.

However, in these display devices, the object in the outputted image is output differently from the real size. That is, since a general display device outputs an image corresponding to the size thereof, the size of the object in the image is different from the real size.

In recent years, the size of a flat panel display has been increasing, but the yield of the flat panel display is inversely proportional to the size thereof, and thus there is a limitation in enlarging the size.

On the other hand, in the case of the projector, since the screen can be enlarged, the size of the object in the image can be outputted in a real size.

However, since the projected image is blurred in response to the enlargement of the screen, there is an inconvenience that manual operation for focusing must be performed each time. In addition, the color of the image is also distorted (distorted into brighter or darker color) and output. This occurs because the brightness of the surroundings where the image is projected can not be considered.

As a result, when viewing an image through a flat panel display and a projector, for example, there is a large difference in feeling when compared with a case where a picture is directly viewed in a museum. Therefore, there is a need for measures to minimize these differences.

Korean Patent Publication No. 10-2014-0003993 (Publication date 2014.01.10.) Korean Utility Model Registration No. 20-0167910 (Published on February 15, 2000)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for real- Sized projector for outputting a real-size image.

According to an aspect of the present invention, there is provided a projector for a full-scale output, including: an image information input unit receiving image information including a real size, brightness, and color of an image together with an image; A storage unit for storing the image information and the image; A distance measuring device for measuring the distance between the projector and the screen; An illuminance sensor for sensing illuminance; A controller for generating a motor control signal and a projection angle control signal corresponding to the distance information output from the distance measuring unit and generating brightness information and color information of the image corresponding to the illuminance information outputted from the illuminance sensor; A motor for moving the projector in response to the motor control signal; An image control unit for adjusting color and resolution in accordance with the projection angle control signal, brightness information, and color information; And an output unit for performing image output corresponding to color information and resolution information output from the image control unit.

Wherein the control unit comprises: a distance information calculation unit for calculating distance information between the projector and the screen corresponding to the real size of the image; A motor rotation number calculation unit for calculating a motor rotation number in accordance with the distance information; A projection angle calculation unit for calculating a projection angle corresponding to the distance information; A brightness information calculation unit for calculating brightness information of the image corresponding to the brightness information; And a color information calculation unit for calculating color information of the image corresponding to the illumination information.

It is preferable that the real size of the image is one of a real size of an original image and a real size of an object in an image.

The motor is coupled to the rails, and the motor and the rails are gear-coupled.

As described above, according to the projector for real size output according to the present invention, it is possible to maximize the sense of reality by outputting the size of the object in the image at the real size.

In addition, according to the present invention, image distortion can be minimized by determining the brightness and color of the image in consideration of the surrounding brightness.

According to the present invention, it is possible to apply the present invention to other application fields requiring a full-scale output with minimized distortion.

1 is a configuration diagram of a projector for a physical size output according to an embodiment of the present invention.
2 is a configuration diagram of a control unit according to an embodiment of the present invention.
3 is a conceptual diagram of moving the projector according to an embodiment of the present invention.
4 is a conceptual diagram illustrating a relationship between image sizes corresponding to a projection angle and a distance of a projector according to an exemplary embodiment of the present invention.
FIG. 5 is a flowchart illustrating an operation of the projector for real size output according to an embodiment of the present invention.

Hereinafter, a full-size output projector according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a projector for a physical size output according to an embodiment of the present invention.

1, the full-size projector P includes a video information input unit 1 for receiving video information including a real size, brightness, and color of an image together with an image, A distance measuring device 3 for measuring the distance between the projector P and the screen S, an illuminance sensor 4 for sensing the illuminance, distance information (distance information) A controller 5 for generating a motor control signal and a projection angle control signal in response to the illumination control signal and generating brightness information and color information of the image in accordance with illumination information output from the illumination sensor 4, An image control unit 7 for controlling the color and resolution in accordance with the projection angle control signal, the brightness information and the color information, the color information information outputted from the image control unit 7, An output unit for outputting video corresponding to the resolution information ( 8).

Here, the real size may be any of the real size of the original image and the real size of the object in the image.

In the full-size projector P configured as described above, the distance between the projector P and the screen S is adjusted based on the image information transmitted together with the image, and the adjustment of the projection angle corresponding to the distance adjustment . At the same time, the brightness and color of the image are determined in accordance with the current illuminance, and the color and resolution are determined according to the projection angle. And an image of a real size that is optimized is output.

2 is a configuration diagram of a control unit according to an embodiment of the present invention.

2, the control unit 5 of the present invention includes a distance information calculation unit 51 for calculating distance information between the projector P and the screen S corresponding to the real size, A projection angle calculation unit 53 for calculating a projection angle corresponding to the distance information, a brightness information calculation unit 53 for calculating brightness information for calculating brightness information of the image by combining brightness information and distance information And a color information calculating unit 55 for calculating the color information of the image by combining the illuminance information and the distance information.

3 is a conceptual diagram of moving the projector according to an embodiment of the present invention.

Referring to FIG. 3, the projector P is preferably fastened to a ceiling-mounted rail in order to improve the degree of freedom of movement.

The motor 6 may use a stepping motor or the like for precise control, and the motor 6 and the rails are preferably gear-coupled for slip and precision control.

4 is a conceptual diagram illustrating a relationship between image sizes corresponding to a projection angle and a distance of a projector according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the image size is determined by the distance between the projector P and the screen S and the projection angle, and the brightness and color of the image are also determined, thereby determining the color and resolution.

Hereinafter, the operation of the full-size output projector constructed as described above will be described.

FIG. 5 is a flowchart illustrating an operation of the projector for real size output according to an embodiment of the present invention.

5, when image information including real size, brightness, and color is transmitted together with the corresponding image (S1), the image information input unit 1 stores the image and image information in the storage unit 2 (S2) . Here, the real size may be any of the real size of the original image and the real size of the object in the image.

Accordingly, the control unit 5 calculates the distance information between the projector P and the screen S corresponding to the real size (S3).

Next, the control unit 5 calculates the number of revolutions of the motor for calculating the number of revolutions of the motor in accordance with the distance information, and calculates the projection angle corresponding to the distance information (S4). The control unit 5 drives the motor 6 and checks whether the distance information is consistent with the distance information through the distance measuring unit 3 in step S6. The motor 6 is controlled until the distance measured by the distance measuring device 3 coincides with the distance information.

Meanwhile, the control unit 5 calculates the brightness information of the image corresponding to the illuminance information and the color information of the image corresponding to the illuminance information (S7 to S9).

Then, the image adjusting unit 7 adjusts the color and resolution according to the brightness information and the color information (S10).

The optimized real size image is output (S11).

On the other hand, the distance between the projector P and the screen S, the projection angle, the brightness, and the color are changed in real time in consideration of the real size being changed in successive images.

[Example]

When the image to be projected is smaller than the size of the actual image

The distance between the projector P and the screen S is measured through the distance measuring unit 3 and the size of the projected image is calculated based on the current projection angle. If the size of the image to be projected is smaller than the size of the actual image when the projection angle is smaller than the size of the actual image, the motor 6 is adjusted so that the projector P and the screen S ) Close to each other. When the distance between the projector P and the screen S is adjusted close to each other by using the motor 6, the amount of light is reduced to prevent the color of the image from becoming too bright. If the projected image is larger than the actual image size although the projection angle is adjusted to the minimum and the distance between the projector P and the screen S is adjusted close to each other using the motor 6, To adjust the size of the projected image to match the actual image.

If the image to be projected is larger than the actual image size

The size of the image to be projected is calculated based on the distance measuring device (3) and the projection angle, and is compared with the actual image size. If it is necessary to adjust the projection angle to be larger than that, adjust the size of the image by adjusting the motor 6. When the distance between the projector (P) and the screen (S) is adjusted to a greater distance by using the motor (6), the image size may be enlarged and the sharpness of the image may deteriorate do. Also, since the distance between the projector P and the screen S may become too long, the amount of light may be insufficient. Therefore, the illuminance is checked from the illuminance sensor 4 to adjust the light amount.

As described above, the present invention measures the size of a projected image by measuring the distance between the projector P and the screen S through the distance measuring unit 3, calculating the size of the projected image using the present projection angle, And calculates a condition that can be projected in accordance with the size of the actual image. Further, the present invention relates to a projector (P) that adjusts the amount of light and the resolution so as to maintain the color and sharpness of a real image with color and sharpness distorted in the process of adjusting the color and sharpness. As an example, since you can appreciate the picture size that you can appreciate in the museum, you will feel the magnificence felt in its size realistically. Nevertheless, according to the present invention, the color and resolution are determined in consideration of the illuminance in the field, and output, so that an optimized real size image can be appreciated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

1: image information input unit 2: storage unit
3: distance measuring instrument 4: illuminance sensor
5: control unit 6: motor
7: image control unit 8: output unit

Claims (5)

An image information input unit for receiving image information including a real size, brightness, and color of the image together with the image;
A storage unit connected to the image information input unit and storing the image information and the image output from the image information input unit;
A distance measuring device for measuring the distance between the projector and the screen;
An illuminance sensor for sensing illuminance;
And a control unit coupled to the storage unit, the distance measuring unit, and the illuminance sensor to generate a motor control signal and a projection angle control signal corresponding to distance information output from the distance measuring unit, and to correspond to illuminance information output from the illuminance sensor A controller for generating brightness information and color information of an image;
A motor connected to the control unit for moving the projector in response to the motor control signal output from the control unit;
An image control unit connected to the control unit and the storage unit and adapted to adjust color and resolution in accordance with the projection angle control signal, brightness information, and color information output from the control unit; And
And an output unit connected to the image control unit and performing image output corresponding to color information and resolution information output from the image control unit,
/ RTI >
When the distance between the projector and the screen and the magnitude of the projection image calculated based on the projection angle are smaller than the actual image size and the projection angle is smaller than when the projection angle is adjusted to the minimum through the distance measuring device Wherein the distance between the projector and the screen and the magnitude of the image to be projected calculated on the basis of the projection angle are larger than the size of the actual image through the distance measuring device, The distance between the projector and the screen can be increased by using a motor when the projection angle is larger than when the maximum adjustment is made
Full size output projector.
The method according to claim 1,
Wherein,
A distance information calculation unit for calculating distance information between the projector and the screen corresponding to the real size of the image;
A motor rotation number calculation unit for calculating a motor rotation number in accordance with the distance information;
A projection angle calculation unit for calculating a projection angle corresponding to the distance information;
A brightness information calculation unit for calculating brightness information of the image by combining the brightness information and the distance information;
And a color information calculation unit for calculating color information of an image by combining the illuminance information and the distance information.
The method according to claim 1,
Wherein the real size of the image is one of a real size of the original image and a real size of the object in the image.
delete The method according to claim 1,
Wherein the motor is coupled to a rail, and the motor and the rail are gear-engaged.

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