KR101568398B1 - Lazer shooting system for extracting target impact point, and method for extracting target impact point using the same - Google Patents

Abstract

The present invention relates to a laser shooting system for impact point extraction, and an impact point extraction method in a laser shooting system. A first aspect of the present invention is directed to a laser shooting system for impact point extraction comprising a camera 10 and a laser shooting system 20 wherein the laser shooting system 20 includes a laser spot An original image acquiring means (21a) for acquiring an original image by receiving the original image; And bit plane construction means (21b) for performing reconstruction with a binary bit plane image for the acquired original image; And the bit plane composing unit 21b provides a laser shooting system for extracting a laser spot using a reconstructed bit plane.
The second aspect of the present invention also includes a first step of the laser shooting system 20 acquiring an original image including a laser spot from the camera 10; A second step of the laser shooting system 20 reconstructing the original image into a plurality of binary bit plane images; And a third step of selecting a bit plane image corresponding to a bit in which an impact point corresponding to a laser spot among the reconstructed bit planes is most clearly implemented as an optimal bit plane; And a method for extracting an impact point in a laser shooting system.
Accordingly, it is possible to extract an impact point by a more accurate laser spot without blurring of the laser spot in the original image indicated by the laser pointer due to the characteristics of the camera.
In addition, the present invention solves the problem that it is not easy to accurately determine the position due to blur according to the intensity when the vision technique is used due to the characteristics of the conventional laser, and it is not a simple image processing technique or a method using a filter, It is possible to perform precise impact point analysis by the optimum bit plane extraction method among the planes.

Description

TECHNICAL FIELD The present invention relates to a laser shooting system for extracting an impact point, and a method for extracting an impact point from a laser shooting system.

The present invention relates to a laser shooting system for an impact point extraction and a method for extracting an impact point in a laser shooting system. More particularly, the present invention relates to an impact point detection method for detecting an impact point without blurring of a laser spot due to the characteristics of a camera, A laser shooting system for extraction, and an impact point extraction method in a laser shooting system.

Due to the development of electronic equipments today, various existing game machines have been changed into advanced equipments. Among them, the shooting system is mainly composed of a laser with a consumable bullet removed.

When a laser is shot with a laser and the user strikes the target with a laser, a vision system equipped with a laser acquires a vision image as shown in FIG. 1A, analyzes the aiming point in a converted shape as shown in FIG. 1B using a vision technique, The system is configured to let you down.

However, when the vision technology is used due to the characteristics of the laser, there is a problem in that it is not easy to accurately determine the position due to the blur. In addition, most of the laser shooting systems have limitations in that they can improve the accuracy by simply using image processing techniques or using filters.

[Related Technical Literature]

1. Analysis method of target hit point accuracy and its system (Patent Application No. 10-2001-0019657) (Analysis method of target impact point for heavy firearms and system for use in such method)

2. A laser beam launching system and a laser beam shooting system (laser beam shooting system for laser shooting pratice) (Patent Application No. 10-2000-0025393)

3. Apparatus for controlling a computer program using a laser pointer (Patent Application No. 10-2001-0051946)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a laser shooting system for extracting an impact point by a more accurate laser spot without blurring of a laser spot in an original image indicated by a laser pointer, , And a method for extracting an impact point in a laser fire system.

In addition, the present invention solves the problem that it is not easy to accurately determine the position due to blurring according to the intensity when using the vision technology due to the characteristics of the laser, And a method for extracting an impact point in a laser fire system.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a laser shooting system for an impact point extraction according to an embodiment of the present invention is a laser shooting system for an impact point extraction including a camera 10 and a laser shooting system 20, (20) includes original image acquiring means (21a) for receiving an original image including a laser spot from the camera (10) and acquiring an original image; And bit plane construction means (21b) for performing reconstruction with a binary bit plane image for the acquired original image; And the bit plane construction means 21b extracts the laser spot using the reconstructed bit plane.

At this time, the bit plane composing unit 21b converts the original image into a monochrome image, analyzes each brightness value to form a brightness value matrix, and further divides the brightness value matrix into a binary array Finally, it is preferable that bit planes are formed by collecting only bits corresponding to the same position for each pixel with respect to a brightness value matrix of an array type of binary numbers.

B7, b6, b5, b3, b2, b1, b0, k are 0 to 7), the bit plane configuration means 21b sets the intensity values of the respective pixels to 8-bit binary vectors , And each 8-bit binary vector (bk) preferably has a value of 0 or 1.

에 의해 구성하며, 여기서 I(i,j)는 원본 영상의 픽셀값(2진수의 배열 형태의 밝기값)을 의미하며, IBP_k(i,j)는 2^k 비트를 위한 비트 플레인 정보를 나타내며, R은 비트 플레인 상수값을 나타내는 것이 바람직하다.In addition, the bit plane constituting means 21b is constituted so that each bit plane

IBP _k (i, j) represents bit plane information for 2 ^k bits, and IBP _k (i, j) represents a pixel value of the original image , And R represents a bit plane constant value.

In order to achieve the above object, a method of extracting an impact point in a laser shooting system according to an embodiment of the present invention includes a first step of acquiring an original image including a laser spot from a camera 10 by a laser shooting system 20; A second step of the laser shooting system 20 reconstructing the original image into a plurality of binary bit plane images; And a third step of selecting a bit plane image corresponding to a bit in which an impact point corresponding to a laser spot among the reconstructed bit planes is most clearly implemented as an optimal bit plane; .

In the second step, the original image obtained by the laser shooting system 20 is converted into a monochrome image, and a brightness value matrix is formed by analyzing each brightness value. And the laser shooting system 20 are further subdivided in units of bits, a brightness value matrix is formed into an array of binary numbers and then a brightness value matrix of an array of binary numbers (binary) (2-2) collecting only bits corresponding to the same position in the bit plane and constructing a bit plane; .

After the third step, if the laser spotting system 20 extracts an impact point, which is a laser spot, it performs target coordinate calculation on the extracted impact point and then applies it to the laser shooting application using the calculated target coordinates, ; Is further preferably performed.

The laser shot system for extracting an impact point according to an embodiment of the present invention and the impact point extraction method in a laser shot system are characterized by a more accurate laser spot without blurring of the laser spot in the original image indicated by the laser pointer due to the characteristics of the camera Provides the effect of impact point extraction.

In addition, according to another embodiment of the present invention, the laser shooting system for extracting the impact point and the impact point extraction method in the laser shooting system, when using the vision technology due to the characteristics of the conventional laser, Not only the problem of not being easy to solve but also an effect of performing precise impact point analysis by an optimal bit plane extraction method among a plurality of bit planes instead of a simple image processing method or a method using a filter is provided.

1 is a view for explaining an aiming point analysis by a vision image acquisition on a shooting system equipped with a laser according to a conventional technique.
2 is a diagram illustrating a laser shooting system for impact point extraction according to an embodiment of the present invention.
3 is a view showing an example of a user interface screen (UI screen) implemented by a laser shooting system for impact point extraction according to an embodiment of the present invention.
4 is a view showing an original image acquired by a camera 10 on a laser shooting system for impact point extraction according to an embodiment of the present invention.
5 and 6 are views for explaining a reconstruction process for a bit plane image by the bit plane construction means 21b in the laser shooting system for impact point extraction according to the embodiment of the present invention.
7 and 8 are diagrams for explaining a bit plane image having different bits generated by the bit plane construction means 21b in the laser shooting system for impact point extraction according to the embodiment of the present invention.
FIG. 9 is a flowchart illustrating an impact point extraction method in a laser shooting system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In the present specification, when any one element 'transmits' data or signals to another element, the element can transmit the data or signal directly to the other element, and through at least one other element Data or signal can be transmitted to another component.

2 is a diagram illustrating a laser shooting system for impact point extraction according to an embodiment of the present invention. 3 is a view showing an example of a user interface screen (UI screen) implemented by a laser shooting system for impact point extraction according to an embodiment of the present invention. 4 is a view showing an original image acquired by a camera 10 on a laser shooting system for impact point extraction according to an embodiment of the present invention. 5 and 6 are views for explaining a reconstruction process for a bit plane image by the bit plane construction means 21b in the laser shooting system for impact point extraction according to the embodiment of the present invention. 7 and 8 are diagrams for explaining a bit plane image having different bits generated by the bit plane construction means 21b in the laser shooting system for impact point extraction according to the embodiment of the present invention.

Referring to FIG. 1, a laser shooting system for an impact point extraction includes a camera 10 and a laser shooting system 20, and the laser shooting system 20 includes an impact point extraction module 21, 22 and a laser shooting application module 23. The impact point extraction module 21 includes an original image acquisition means 21a, a bit plane configuration means 21b and a bit plane selection means 21c.

Herein, a module may mean a functional and structural combination of hardware for carrying out the technical idea of the present invention and software for driving the hardware. For example, the module may mean a logical unit of a predetermined code and a hardware resource for executing the predetermined code, and it does not necessarily mean a physically connected code or a kind of hardware. Can be easily deduced to the average expert in the field of < / RTI >

Hereinafter, a laser shooting system for extracting an impact point will be described in detail with reference to the configuration of the impact point extraction module 21.

First, the original image acquiring means 21a receives an original image including a laser spot from the camera 10 to acquire an original image. To this end, it is preferable that the laser shooting system for extracting the impact point includes a laser pointer and an image recognition area in which a camera 10 for recognizing the laser pointer is installed.

The bit plane composing unit 21b reconstructs a binary bit plane image of the original image acquired by the original image acquiring unit 21a.

It is obvious that the bit plane configuration means 21b is an important factor for accurate determination of the laser spot due to the characteristics of the laser shooting system 20. Therefore, by extracting laser spots using a bit plane, Extraction is possible.

Generally, a bit plane is utilized as a technique for hiding information in a computer security field such as watermarking or steganography. However, in the present invention, 1 Byte) is used to reconstruct an image for each bit.

The bit plane composing unit 21b converts the original image input as shown in FIG. 4 into a monochrome image as shown in FIG. 5A, analyzes each of the brightness values, and forms a brightness value matrix as shown in FIG. 5B.

Then, the bit plane composing means 21b constructs the brightness value matrix in a binary array form, such as the conversion from FIG. 6A to FIG. 6B, to further subdivide in units of bits.

Lastly, the bit plane composing unit 21b collects bits corresponding to the same position for each pixel with respect to a brightness value matrix of an array of binary numbers, thereby constructing a bit plane.

Here, the bit plane construction means 21b can express the intensity value of each pixel as an 8-bit binary vector when the bit plane is constructed. More specifically, the intensity value of each pixel can be expressed by an 8-bit binary vector (bk: b7, b6, b5, b3, b2, b1, b0, k being 0 to 7). Each 8-bit binary vector (bk) has a value of 0 or 1.

In an embodiment of the present invention, the bit plane image reconstructed by the bit plane composing means 21b is considered as an 8-bit plane, and each bit plane is used as a 2-tone image image and binary matrix information .

The bit plane configuration means 21b can implement each bit plane as shown in the following Equation (1).

IBP _k (i, j) denotes bit plane information for 2 ^k bits, and R denotes a bit plane information for bits (i, j) Plane constant value.

As shown in FIG. 6C, each bit plane generated by the bit plane construction means 21b has a least significant bit (LSB: Leat Significant Bit) (from 1 bit when k is 0 in Equation 1) Significant Bit) (128 bits when k is 7 in Equation (1)).

Each bit plane thus constructed has only a value of " 0 " or " 1 ". When converting to a black and white image brightness value of "0" (a) through (f).

8 (a) to 8 (f) illustrate a bit plane image structure for an original image other than a laser spot to help understand the impact point extraction process on a laser shooting system for impact point extraction according to an embodiment of the present invention .

Then, as shown in FIG. 7, the bit plane construction means 21b selects a bit plane image corresponding to 32 bits, which is most clearly implemented as an impact point corresponding to a laser spot, as an optimal bit plane.

It is easy to confirm that the extraction result of the laser spot by the bit plane composing means 21b is much more accurate than the conventional method. As the extraction result of the laser spot becomes more accurate, the analysis of the impact point can not help but be accurate.

The bit plane selecting means 21c selects the optimum bit plane among the bit plane images reconstructed by the bit plane composing means 21b. It is preferable to utilize the image recognition method according to the image vision technique in selecting the optimal bit plane according to an embodiment of the present invention.

The impact point coordinate calculation module 22 performs a target coordinate calculation on the extracted impact point when extraction of the impact spot as a laser spot on the selected optimum bit plane by the bit plane selection means 21c is completed.

The laser shooting application module 23 receives the target coordinates calculated by the impact point coordinate calculation module 22 and applies it to the laser shooting application using the calculated target coordinates to perform the interaction.

FIG. 9 is a flowchart illustrating an impact point extraction method in a laser shooting system according to an embodiment of the present invention. Referring to FIGS. 2 to 9, the laser shooting system 20 acquires an original image including a laser spot from the camera 10 (S10).

After step S10, the laser shooting system 20 reconstructs a binary bit-plane image (S20).

More specifically, the laser shooting system 20 converts the original image acquired in step S11 into a monochrome image, and analyzes each of the brightness values to form a brightness value matrix. Then, the laser shooting system 20 constructs a brightness value matrix into a binary array in order to further subdivide it in units of bits, and then, for a brightness value matrix of an array of binary (binary) So that only the bit corresponding to the same position is gathered to form the bit plane.

In one embodiment of the present invention, the intensity value of each pixel can be represented by an 8-bit binary vector when the bit plane is constructed. More specifically, the intensity value of each pixel can be expressed by an 8-bit binary vector (bk: b7, b6, b5, b3, b2, b1, b0, k being 0 to 7). Each 8-bit binary vector (bk) has a value of 0 or 1.

In an embodiment of the present invention, a bit plane image reconstructed by the bit plane composing means 21b is considered as an 8-bit plane, and each bit plane is implemented using a 2-tone image and binary matrix information.

The nearest to the lower bit (LSB) in each bit plane is the information having little influence on the image, and has almost no noise value. The closer to the upper bit (MSB) the more the information And each bit plane has an associated image information value. Therefore, due to the characteristics of the camera 10, it is possible to extract a blur due to a spot indicated by a laser pointer (not shown), thereby making it possible to extract a more accurate spot as a laser spot.

After step S20, the laser shooting system 20 selects the best bit plane among the bit planes (S30). That is, the laser shooting system 20 selects the bit plane image corresponding to the most clearly implemented impact point corresponding to the laser spot among the bit planes generated in step S20 as the optimal bit plane.

After step S30, the laser shooting system 20 determines whether or not to extract the impact spot as a laser spot (S40).

If it is determined in step S40 that the impact point is not extracted, the laser shooting system 20 returns to step S10. On the contrary, if the impact point is extracted, the laser shooting system 20 performs a target coordinate calculation on the extracted impact point (S50).

After step S50, the laser shooting system 20 applies the laser shooting application using the calculated target coordinates to perform the interaction (S60).

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored.

Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) .

The computer readable recording medium may also be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers skilled in the art to which the present invention pertains.

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms have been used, they have been used only in a general sense to easily describe the technical contents of the present invention and to facilitate understanding of the invention , And are not intended to limit the scope of the present invention. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

10: Camera
20: Laser shooting system
21: impact point extraction module
21a: original image acquiring means
21b: bit plane constituent means
21c: bit plane selection means
22: impact point coordinate calculation module
23: Laser shot application module

Claims (7)

In a laser shooting system for impact point extraction, including a camera (10) and a laser shooting system (20), a laser shooting system (20)
An original image acquiring means (21a) for acquiring an original image by receiving an original image including a laser spot from the camera (10); And
Bit plane composing means (21b) for reconstructing a binary bit plane image with respect to the acquired original image, and extracting a laser spot using a reconstructed bit plane; ≪ / RTI >
The bit plane configuration means 21b
A brightness value matrix is formed by converting an original image into a monochrome image and analyzing brightness values of the original image. In order to further subdivide the brightness value matrix in units of bits, a brightness value matrix is formed in an array of binary numbers, Wherein a bit plane is constructed by collecting only bits corresponding to the same position for each pixel with respect to an array type brightness value matrix.
delete 2. The apparatus according to claim 1, wherein the bit plane configuration means (21b)
(Bk: b7, b6, b5, b3, b2, b1, b0, k are 0 to 7 values)), and each 8-bit binary vector bk) has a value of 0 or 1. A laser shooting system for impact point extraction.
2. The apparatus according to claim 1, wherein the bit plane configuration means (21b)
Each bitplane

IBP _k (i, j) represents bit plane information for 2 ^k bits, and IBP _k (i, j) represents a pixel value of the original image , And R represents a bit plane constant value.
A first step of the laser shooting system (20) acquiring an original image including the laser spot from the camera (10);
A second step of the laser shooting system 20 reconstructing the original image into a plurality of binary bit plane images; And
A third step of selecting a bit plane image corresponding to a bit in which an impact point corresponding to a laser spot among the reconstructed bit planes is most clearly implemented as the optimum bit plane; ≪ / RTI >
The second step comprises:
A second step of converting the original image acquired by the laser shooting system 20 into a monochrome image, and analyzing each of the brightness values to form a brightness value matrix; And
After the laser shot system 20 is further subdivided in units of bits, a brightness value matrix is formed into an array of binary numbers, and then a brightness value matrix of an array of binary numbers (binary) 2-2 < / RTI > constructing a bit plane by collecting only bits corresponding to the same position with respect to the bit plane; Wherein the method comprises the steps of:
delete The method of claim 5, further comprising, after the third step,
A fourth step of performing a target coordinate operation on the extracted impact point when the impact point is extracted as a laser spot by the laser shooting system 20 and then applying the target coordinate application to the laser shot application using the calculated target coordinates to perform an interaction; Further comprising the steps of: detecting a point of impact in the laser shooting system;

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