KR20110048778A - System and method for photographing a moving picture - Google Patents

Abstract

PURPOSE: A video photographing system is provided to freely perform a video photographing without help of others. CONSTITUTION: A system for taking moving images(100) includes a photographing unit(110), a image display unit(130), and an indication unit(120). According to on switch for an image tracing, the indication device vents a light source of a specific wave. The photographing device receives the light source from the indication device. The photographing device determines a location of a indication device on a screen of the image display device. According to the determination result, the photographing device controls pan/tilt driving.

Description

System and method for photographing a moving picture}

The present invention relates to a video recording system, and more particularly, to a system capable of self-video shooting using image tracking.

Modern society is becoming more and more cyber- and personalized. Even in the increasingly competitive society, this situation seems to be created by the modern people who want to settle down and take a rest and relax. Therefore, personal Internet blogs, UCC, etc. are gaining popularity.

In addition, the speed of knowledge propagation is rapidly increasing through the Internet. Some of the best universities in Korea and abroad have established homepages where they can freely upload their courses on the Internet and watch them remotely through the Internet.They also offer web-based cyber courses by opening courses on the Internet at various educational institutions. The educational contents are being sold through.

In the video recording method according to the above situation, there is one photographer, and the videographer takes a video by lecture or acting. This is the case when at least two people are needed to get the video output.

In the single-person shooting method, that is, the self-shooting method, a camcorder or a web camera capable of capturing a video is set according to a background to be photographed. For example, in a private academy or on an Internet course, a student takes a picture of the class with the camera alone in the background behind the classroom. Here, as a method for increasing the degree of freedom of shooting, there is a method of photographing by adjusting the angle by mounting the camera on a tripod. There is also a way to shoot through a web camera with face tracking.

Looking at the problems of these methods, when shooting with a camcorder or a web camera to match the background to be taken, the range of the subject's individual movement is limited. Therefore, when trying to move the position, not only the problem of having to set yourself in the background again, but also a situation may arise out of focus in some cases, the use of the zoom function is also limited. Even when shooting a self-broadcasting using a tripod, etc., the angle is easy to set, but it is troublesome to adjust the angle of the camera every halfway between shooting. Cameras with built-in pan tilt face tracking or object functions only track faces, so if the subject is self-learning or promotes a product at a shopping mall, use the blackboard or the product There is no way to move it. Therefore, these functions alone do not yield useful self-shooting results. In addition, the camera may follow the movement of the hand while writing on the blackboard.

One embodiment of the present invention relates to a video recording system and method that allows an individual to take a video of their appearance without the help of another person, for example, the self in the video, the blackboard for the course, or the introduction of the product It provides a convenient video shooting system and method for uploading videos to a personal blog, education site, UCC or shopping mall, and self-learning.

In addition, an embodiment of the present invention provides a video recording system and method that can be used to self-shoot a video or a video lecture by yourself without the help of others using a camera having an image tracking function and a controller for controlling the same will be.

In order to achieve the above technical problem, a video photographing system including a photographing apparatus for photographing a video, an image display apparatus for displaying the photographed video, and an instruction device for remotely controlling the photographing apparatus. Wherein the pointing device emits a light source of a specific wavelength according to an on switch for image tracking, the photographing device receives a light source from the pointing device, and the position of the pointing device on a screen of the image display device. And determining the pan tilt drive according to the determination result.

The photographing apparatus may control the pan tilt driving so that the pointing apparatus is positioned at the center of the screen of the image display apparatus when receiving the light source from the pointing apparatus.

When the photographing device receives a light source from the pointing device, the panning device controls the pan tilt driving so that the pointing device is positioned at a corner of a screen of the image display device.

The instruction apparatus includes a plurality of key buttons, and transmits a control command according to the key button operation to the photographing apparatus.

The key button may include at least one of a zoom in / zoom out function and a pan tilt manipulation function.

The photographing apparatus and the image display apparatus are integrated.

In accordance with another aspect of the present invention, there is provided a photographing apparatus for photographing a video, an image display device for displaying the photographed video, and an instruction device for remotely controlling the photographing device. Video recording method using the system comprises the steps of inputting the on switch of the pointing device; Emitting a light source having a specific wavelength according to the on switch; Receiving a light source from the pointing device; Determining a position of the pointing device on a screen of the image display device; And controlling the pan tilt driving according to the determination result.

The control may include controlling the pan tilt driving so that the pointing device is positioned at the center of the screen of the image display device.

The controlling may include controlling the pan tilt driving so that the pointing device is positioned at an edge of a screen of the image display device.

The video recording method further includes the step of transmitting a control command according to the key button operation of the pointing device to the recording device,

The key button may include at least one of a zoom in / zoom out function and a pan tilt manipulation function.

In the video recording system and method according to an embodiment of the present invention, an individual can freely perform his or her video recording without the help of another person.

In addition, it is possible to obtain a natural video recording result while controlling the pan tilt and zoom functions of the camera by the person to be photographed alone.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts may be omitted so as not to distract from the gist of the present invention.

In addition, terms and words used in the following description and claims should not be construed to be limited to ordinary or dictionary meanings, but are to be construed in a manner consistent with the technical idea of the present invention As well as the concept.

1 is a schematic block diagram of a video recording system 100 according to an exemplary embodiment.

Referring to FIG. 1, the video capturing system 100 includes a photographing apparatus 110, a pointing apparatus 120, and an image display apparatus. Although the image capturing apparatus 110 and the image display apparatus 130 are described separately, the image capturing apparatus 110 and the image display apparatus may be integrated.

The photographing apparatus 110 captures a video of the subject. The photographing apparatus 110 includes a camera, a camcorder, a DVR, a Pan Tilt Zoom (PTZ) camera, etc., capable of capturing a video, and is capable of pan tilt driving and zoom driving. Pan tilt driving means that two motors, pan and tilt, can be moved to a specified target. A detailed configuration of the photographing apparatus 110 will be described later with reference to FIG. 3.

The image display device 130 displays a video captured by the photographing device 110 on a display screen. The video display device 130 includes a monitor, a personal computer (PC), and the like. The subject may check the photographing state through the image display device 130 while photographing a video.

The pointing device 120 remotely controls the photographing device 110. The indicating device 120 emits a light source having a specific wavelength according to the on switch for image tracking. The pointing device 120 includes a plurality of key buttons, and transmits a control command according to the key button operation to the photographing device 110. The key button includes various function buttons, a zoom in / out button, a pan tilt button, and the like for controlling the photographing apparatus 110. Referring to FIG. 5, an exemplary diagram of the pointing device 120 is shown. Here, the indicating device 120 is shown in the form of an indicator rod, but is not limited thereto and may be configured in various forms. The indicator rod shown on the left is the tracking lamp is turned off, and the indicator rod shown on the right is the tracking lamp turned on. Accordingly, as the tracking lamp, that is, the lamp for emitting light of a specific wavelength is turned on as the on switch of the indicator rod is turned on, the photographing apparatus 110 detects this and displays the image on the screen of the image display apparatus 130. The pan tilt is driven such that the indicator rod is positioned at a set position, for example, a center or a specific corner portion.

The photographing apparatus 110 receives the light source from the indicating apparatus 120, determines the position of the indicating apparatus 120 to be positioned on the screen of the image display apparatus 130, and controls the pan tilt driving according to the determination result. do. Here, the photographing apparatus 110 may control the pan tilt driving so that the pointing device 120 is located at the center of the screen or at a specific corner.

FIG. 2 is an exemplary diagram for describing in detail the video photographing system 100 shown in FIG. 1.

Referring to FIG. 2, a pan tilt camera is illustrated as an example of the photographing apparatus 110, and an electronic indicator rod and an example of the image display apparatus 130 are illustrated as an example of the pointing apparatus 120. Here, the PC can monitor or store the situation in which it is being photographed, and the pan tilt camera is capable of pan tilt zoom (PTZ) and has a receiving unit that can receive control commands from the electronic indicator bar by infrared or RF method. It has a function to transfer the video to a memory or a PC that can store the recorded video. The electronic indicator can display a specific color for image tracking or motion tracking, and control the pan tilt camera in combination with infrared or RF.

The pan tilt camera has an image tracking function that can track a specific color on / off at the end of the electronic indicator on the screen. This image tracking method has a light source emitting a specific color at the center of the screen. Or panning the camera so that the corresponding light source is located near a particular edge of the screen.

The electronic indicator bar has a light source at the end to allow the pan tilt camera to track the light source when the light source is turned on. In addition to built-in RF or infrared communication transmitters, in addition to simple tracking, it can perform various camera control commands such as pan tilt zoom operation and optional mapping to buttons. These button functions have a function to adjust or enlarge the screen more precisely through the RF communication method while the subject is watching the monitor. Of course, when the indicator stick goes out of the screen and you cannot use the camera's tracking function, the button's built-in pan tilt function allows you to manually position the camera, save or recall the zoom factor and pan tilt angle. Can be mapped to In an embodiment of the present invention, the interface of the electronic indicator rod has been described in a button manner, but the present invention is not limited thereto and may be implemented as an interface such as a joystick or a dial.

In addition to the image tracking function, the electronic indicator bar may indicate a product in a course of introducing a product of a self-learning course or a shopping mall, or may perform a function of a pointer indicating a specific formula on a blackboard. In one embodiment of the present invention, when the formula is written on the blackboard or the subject moves, the lamp is turned off so that the camera does not follow the unwanted movement and the user first turns on the lamp and stays at the designated position. do.

4 is a diagram for describing screen movement according to on of the indicating device 120 according to another exemplary embodiment. 4A and 4B, the subject holding the electronic indicator rod is out of the center of the screen 400. Referring to FIG. 4B, when the photographer wants to move toward the center of the screen, when the on switch for image tracking of the electronic indicator rod is pressed, a light of a specific wavelength is emitted and is detected through the image tracking function of the pan tilt camera. . Then, the pan tilt driving of the pan tilt camera is performed to control the pan tilt driving amount so that the electronic indicator rod is at the center 420 of the screen as shown in FIG. 4B.

3 is a schematic block diagram of the photographing apparatus 110 shown in FIG. 1.

Referring to FIG. 3, the photographing apparatus 110 includes a controller 111, a receiver 112, an image photographing unit 113, a tracking unit 114, a storage unit 115, and a driving unit 116. Here, the basic functions of the image capturing apparatus 110, for example, an optical unit, an image processing, and a storage, will be omitted, and the configuration of the embodiment of the present invention will be described.

The controller 111 controls overall operations of the photographing apparatus 110.

The receiver 112 detects a light source emitted from the indicating device 120 for image tracking. Here, the receiver 112 may be configured as an infrared receiver or an RF receiver, and receives control commands for controlling the photographing apparatus 110 together with a light source for image tracking.

The tracking unit 114 tracks the light source of the detected specific wavelength from the indicating device 120. Here, object tracking means tracking an object on a photographed image, and is classified into a tracking method using a shape of an object and a tracking method using a color of the object. In FIG. 2, image tracking is performed by detecting a characteristic wavelength, that is, a specific color emitted from the pointing device 120. The color of the object is an element that represents the inherent properties of the object, so if the shape of the object changes distortion and becomes larger or smaller, it is not affected by, for example, zoom in or zoom out.

The storage unit 115 may provide information about a preset position on the screen of the indicating device 120, or control information of the photographing device 110 matched with key buttons of the indicating device 120, for example, zoom magnification information. , Pan tilt drive amount information, and the like.

The control unit 111 receives the position of the indicating device 120 through the tracking unit 114, and determines whether the position of the indicating device to be positioned on the screen, that is, the preset position is the center or the corner of the screen, and the determination result. Accordingly, a control command for controlling the pan tilt driving is provided to the driving unit 116.

The driving unit 116 drives the pan tilt, that is, the pan tilt motor, in order to capture the picture around the corresponding position under the control of the control unit 111.

6 is a diagram for describing a video photographing method according to another exemplary embodiment.

Referring to FIG. 6, in step 600, it is determined whether the indicating apparatus is on. Here, the on of the indicating device means the input of the subject for image tracking. In operation 602, the photographing apparatus detects this. Here, image tracking is started by detecting a light source having a specific wavelength emitted from the pointing device.

In step 604, the position on the display screen of the pointing device is determined. In response to the on input for image tracking, it is determined whether the preset position is the center of the screen or the corner of the screen. In step 606, the pan tilt is driven so that the pointing device is positioned at the corresponding position.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will understand that the present invention can be embodied in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown not in the above description but in the claims, and all differences within the scope should be construed as being included in the present invention.

1 is a schematic block diagram of a video recording system 100 according to an exemplary embodiment.

FIG. 2 is a diagram for describing in detail the video photographing system 100 illustrated in FIG. 1.

3 is a schematic block diagram of the photographing apparatus 110 shown in FIG. 1.

4 is a diagram for describing screen movement according to on of the indicating device 120 according to another exemplary embodiment.

FIG. 5 is a diagram for describing the indicating device 120 illustrated in FIG. 4.

6 is a diagram for describing a video photographing method according to another exemplary embodiment.

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

100: video recording system 110: recording device

120: indicating device 130: video display device

111: control unit 112: video recording unit

114: tracking unit 115: storage unit

116: drive unit

Claims (10)

In the video recording system including a photographing device for photographing a video, an image display device for displaying the photographed video and an instruction device for remotely controlling the photographing device, The instruction device, Emits light of a specific wavelength according to the on-switch for image tracking, The photographing apparatus, And a light source from the pointing device, determining a position of the pointing device on a screen of the image display device, and controlling pan tilt driving according to the determination result. The method of claim 1, The photographing apparatus, And receiving the light source from the pointing device, controlling the pan tilt driving so that the pointing device is located at the center of the screen of the video display device. The method of claim 1, The photographing apparatus, And receiving the light source from the pointing device, controlling the pan tilt driving so that the pointing device is positioned at an edge of a screen of the image display device. The method of claim 1, The instruction device, And a plurality of key buttons, and transmit a control command according to the key button operation to the photographing apparatus. The method of claim 5, The key button, And at least one of a zoom in / zoom out function and a pan tilt operation function. The method of claim 1, And the image capturing apparatus and the image display apparatus are integrated. In the video recording method using a video recording system including a photographing device for photographing a video, an image display device for displaying the photographed video and an instruction device for remotely controlling the photographing device, Inputting an on switch for image tracking of the indicating device; Emitting a light source having a specific wavelength according to the on switch; Receiving a light source from the pointing device; Determining a position of the pointing device on a screen of the image display device; And And controlling pan tilt driving according to the determination result. The method of claim 7, wherein The control step, And controlling the pan tilt drive so that the pointing device is positioned at the center of the screen of the image display device. The method of claim 7, wherein The control step, And controlling the pan tilt drive so that the pointing device is positioned at an edge of a screen of the image display device. The method of claim 7, wherein Transmitting a control command according to a key button operation of the instruction apparatus to the photographing apparatus, The key button, A video recording method comprising at least one of a zoom in / zoom out function and a pan tilt operation function.

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