KR20140095246A - Video communication device and auxiliary device for video communication - Google Patents

Abstract

A video communications device (100) according to the present invention comprises a display unit (120) for displaying an image of the other party in a video communications; a semi-transparent mirror unit (150) located between eyes of a user and eyes of the other party in the image to reflect an image of the user and transmit the image of the other party; a camera unit (110) for obtaining the image of the user reflected by the semi-transparent mirror unit (150); a housing unit (160) which is provided with the semi-transparent mirror unit (150) and the camera unit (110) on one plane surface, and includes an angle adjustment means for adjusting arrangement angles of semi-transparent mirror unit (150) and the camera unit (110); and a transmitting and receiving unit (140) for transmitting the image provided by the camera unit (110) to a video communications device of the other party and providing the image received from the video communications device of the other party to the display unit (120).

Description

Technical Field [0001] The present invention relates to a video communication apparatus,

The following description relates to a video communication apparatus and a video communication assistance apparatus using the mobile terminal.

In recent years, communication between users has changed from a telephone using only voice or from a conference to an image using a telephone or a conference.

Generally, in a video call, a user makes a call while viewing an area displaying a video of the other party in the video communication device. The user's image is captured through the camera and transmitted to the other party. In this case, the angle between the user's eyes (the user's gaze) and the camera is constant. This is because the camera can not be arranged in the space where the image of the other party is displayed. Therefore, the user and the other party will talk to each other in a video call.

Videoconference is a very important factor in the video call because it helps the other party to understand what kind of attitude they are in conversation and how interested they are in their story. Consensus controls the flow of conversations by providing a clue to start a conversation or start to speak, and is a silent language that indicates that the conversation is interested or paying attention to the conversation with the other. It is also known that emotional states of each other can be recognized through the movement of eyes, forehead, mouth, and facial muscles, which play an important role in conveying emotions.

There are hardware and software approaches to match the line of sight between callers during video call.

The software approach is to identify the position of the eye in the image data and match the gaze of the user with the gaze of the other person. Korean Patent Laid-Open Publication No. 10-2012-0064545 proposes a method of using a camera capable of analyzing the position of the eye of the other party to be transmitted and photographing the same in accordance with the position of the user's eyes among a plurality of cameras.

Hardware approaches include light split method such as HM (Half-transparent Mirror) method and BHM (Blazed Half-Mirror) method, space partition method and time partition method.

In the BHM method, a plurality of semitransparent mirrors of a small size are arranged so that a translucent mirror is parallel to the monitor and a camera is arranged to be perpendicular to the reflection angle of the BHM. In the translucent mirror method, .

In the space division method, a small hole is drilled in the screen where the opponent's eye is displayed, a small camera is installed thereon, and the image of the opponent is projected on the screen using a video projector. Since the strong light of the video projector is directly input to the camera, it is necessary to use a polarizing filter or the like to distinguish between a light beam coming from the projector and a light beam reflected from the user.

In the time division mode, a camera and a video projector are placed behind a switchable LCD panel, and when the LCD is driven, the other side is displayed. When the LCD is not driven, a transparent LCD is used to capture the user's image. This method can only use half of the camera or display time.

The semi-transparent mirror method is a method in which the user is looking at the screen reflected on a translucent mirror and input to the camera.

In 1999 Birgit Quante was designed to look at the camera at the same time as looking at the screen using the characteristics of simultaneous reflection and transmission of a translucent mirror (see Birgit Quante and Lothar Muhlbach, "Eye-contact in Multipoint Videoconferencing", 1999).

In a 2005 paper by Tracy Jenkin, Tracy Jenkin, Jesse McGeachie, "EyeView: Focus + Context Views for Large Group Video Conferences ", 2005).

In the conventional semi-transparent mirror system, the semi-transparent mirror is fixed, so that the user must adjust his or her position while adjusting his or her eyesight. Also, when a video call image is displayed on a separate monitor, the translucent mirror must be inclined by 45 degrees, which increases the distance between the user and the monitor in proportion to the size of the monitor, which increases the overall system size. There is a problem in that a method of tracking the user's eyes requires the use of a plurality of cameras and an increase in the cost of the device equipment.

A technique to be described below is to provide a video communication apparatus or a video communication auxiliary apparatus in which a user easily matches a line of sight of a counterpart in a video call using a mobile terminal or a video communication assistance apparatus in which a mobile terminal is detached.

The technique described below is intended to provide a semi-transparent mirror method of adjusting the angle of a camera and a translucent mirror by adding a simple device to the mobile terminal or using an auxiliary device to which the mobile terminal is detachable.

The solutions to the technical problems described below are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

A video communication apparatus for solving the above problem includes a display unit for displaying an image of a video communication partner, a display unit for displaying an image of a user positioned between the eye position of the user and the eye position of the opponent and reflecting the user's image, A camera section for acquiring an image of a user reflected from a mirror section and a translucent mirror section; a housing section including a translucent mirror section and an angle adjusting section arranged on one plane and adjusting an arrangement angle of the translucent mirror section and the camera section, And a transmitting and receiving unit for transmitting the image provided from the camera unit to the video communication apparatus of the other party and providing the image received from the video communication apparatus of the other party to the display unit.

The display unit includes a projector device that projects an image received by the transmission / reception unit, or an output device that displays an image received by the transmission unit.

The virtual image of the camera unit is positioned on the virtual line straight line connecting the eye position of the user and the eye position of the opponent.

The angle adjusting means includes a translucent mirror portion and a camera so that the straight line extending from the center of the semitransparent mirror portion is perpendicular to a virtual straight line connecting the camera portion and the virtual image portion and passes through the point where the directional line of the camera portion and the directional line of the virtual image meet. Adjust the placement angle.

A first arrangement angle ( ? ) Formed by one plane of the housing part and the semi-transparent mirror part is determined by the following equation.

이고,

이다.Here, the coordinate of the point where the mirror straight line extending in the longitudinal direction from the center of the semi-transparent mirror on the yz coordinate plane starts at the housing part is (k, 0), the coordinate of the user's eye position is (y ₁ , z ₁ ) (Y ₂ , z ₂ ) of the other's eye,

ego,

to be.

)가 아래의 식으로 결정된다.A first arrangement angle formed by one plane of the housing portion and a direction line of the cabera portion

) Is determined by the following equation.

The video call assistant device described below includes a projector unit for projecting images of a lower-floor calling party, a semi-transparent mirror unit which is positioned between the user's eye position and the eye's eye position of the user and reflects the user's image, And a housing part including a housing for attaching and detaching a mobile terminal including a camera, a housing angle adjusting part for adjusting an arrangement angle of the housing, and a mirror angle adjusting part connected to the semitransparent mirror part to adjust an arrangement angle of the semitransparent mirror part. The camera acquires the image of the user reflected by the semitransparent mirror, and the projector receives the image of the other party from the mobile terminal.

The virtual image of the camera is positioned on a straight line connecting the eye position of the user and the eye position of the opponent.

The housing angle adjusting means adjusts the angle of arrangement of the housing such that a straight line of the mirror extending from the center of the translucent mirror portion is perpendicular to a virtual straight line connecting the camera and the virtual image plane and passing through the point where the directional line of the camera and the directional line of the virtual image meet do.

The mirror angle adjusting means adjusts the angle of arrangement of the semitransparent mirror portion so that the straight line of the mirror extending from the center of the semitransparent mirror portion is perpendicular to a virtual straight line connecting the camera and the virtual image plane and passes through the point where the directional line of the camera and the direction line of the virtual image meet. .

The technique described below coincides the eyes of the user and the video call destination with a simple device that requires low cost in a video call using the mobile terminal.

The effects of the techniques described below are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 shows an example in which a semi-transparent mirror is disposed in a video communication apparatus or a video communication auxiliary apparatus so that the line of sight of the user and the other party coincides with each other.
2 shows an example of the position and the placement angle of the camera and the translucent mirror placed in the video communication apparatus or the video communication auxiliary apparatus in the yz plane.
3 is a structural view illustrating a video communication apparatus using a semi-transparent mirror.
4 is a structural view illustrating a video call assisting apparatus in which a mobile terminal having a video call function is detached.
Fig. 5 shows the position and arrangement angle of the camera and the semi-transparent mirror placed in the video communication apparatus or the video communication auxiliary apparatus in the yz plane.
FIG. 6 shows a straight line and a placement angle as a reference for confirming whether or not the line of sight of the other party is consistent in the video communication apparatus or the video communication assistance apparatus.
7 is a block diagram showing an example of a process of tracking the position of the eyes of the user and the other party.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, A, B, etc., may be used to describe various components, but the components are not limited by the terms, but may be used to distinguish one component from another . For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

As used herein, the singular " include "should be understood to include a plurality of representations unless the context clearly dictates otherwise, and the terms" comprises & , Parts or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, components, components, or combinations thereof.

Before describing the drawings in detail, it is to be clarified that the division of constituent parts in this specification is merely a division by main functions of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner. Therefore, the existence of each component described in the present specification should be interpreted as a function. For this reason, the constitution of the components according to the video communication apparatus 100 and the video communication assistant 200 of the present invention, 3 to 4 in the extent that the object of the present invention can be achieved.

Also, in performing a method or an operation method, each of the processes constituting the method may take place differently from the stated order unless clearly specified in the context. That is, each process may occur in the same order as described, may be performed substantially concurrently, or may be performed in the opposite order.

Hereinafter, the video communication apparatus 100 and the video communication assistant 200 will be described in detail with reference to the drawings. In the present invention, the video communication apparatus 100 is basically a portable device capable of video communication like a mobile terminal. In the present invention, the video call auxiliary device 200 refers to a device for attaching and detaching a mobile terminal having a video call function to match the line of sight of the user and the other party.

First, a description will be given of a method of matching a line of sight using a translucent mirror. 1 shows an example in which a semitransparent mirror is disposed in the video communication apparatus 100 or the video communication auxiliary apparatus 200 so that the line of sight of the user and that of the other party coincide with each other. As shown in FIG. 1, the user on the left side makes a video call with the other party of the video call on which the video is displayed on the right side using the video communication apparatus 100 or the video communication assistance apparatus 200. The image of the other party may be an image displayed on the screen through the projector of the video communication apparatus or an image directly output from the monitor apparatus. Various devices capable of outputting images such as PDP, LCD, LED, and OLED can be used as a monitor device, and a device such as a smart TV can be used. When the other party's video is output to the monitor device, the video communication device may transmit the video to the wired line, or may transmit the other party's video through various short-range wireless communication methods or the Internet.

The user on the left side in FIG. 1 gazes with the other party on the right side through the semitransparent mirror of the video communication device 100 or the video communication assistance device 200. For this purpose, it is desirable to adjust the angle of the translucent mirror. Meanwhile, the user's image transmitted to the other party is acquired through the camera of the mobile terminal 50 coupled to the video communication apparatus 100 or the video communication assistance apparatus 200. The camera acquires the face image of the user reflected on the translucent mirror. It is preferable that the camera that captures the image of the user who has focused on the other party is also taken at a certain angle.

Since adjusting the angle of the semi-transparent mirror in the three-dimensional coordinate system is a two-dimensional problem in the y-z axis, the present invention will be described based on only the yz plane except for the x-axis.

2 shows an example of the position and the placement angle of the camera and the translucent mirror disposed in the video communication apparatus 100 or the video communication auxiliary apparatus 200 in the yz plane. 2, the camera is shown protruding from a mobile terminal coupled to the video communication device 100 or the video communication assistant device 200. However, this is for the sake of convenience of explanation, and the camera generally refers to the video communication device 100, And is disposed inside the terminal.

In FIG. 2, a virtual straight line connecting the left user and the partner's eyes is shown by a dotted line. This line is called a virtual line of sight. The virtual line of sight must pass through a translucent mirror. A straight line indicating the longitudinal direction passing through the center of the camera is called a camera direction line (indicated by a red dot-dash line). Also, in relation to the camera and translucent mirror, the physical image of the camera is located on the opposite side of the translucent mirror. A straight line indicating the longitudinal direction passing through the center of the camera virtual image is called a virtual directional line (indicated by a red dot-dash line). A longitudinal straight line passing through the center of a semitransparent mirror disposed in the video communication apparatus 100 or the video call auxiliary apparatus 200 is called a mirror straight line. As shown in FIG. 2, in order for the virtual image to be positioned on the virtual line of sight, the angle of the translucent mirror and / or the angle of the camera must be adjusted. The bi-directional arrow in Fig. 2 means that the angle of arrangement of the camera and translucent mirror can be adjusted.

Before describing the arrangement angles of the camera and the semi-transparent mirror, an example of the configurations of the video communication apparatus 100 and the video communication auxiliary apparatus 200 proposed by the present invention will be described.

3 is a structural view illustrating a video communication apparatus 100 using a semi-transparent mirror. The video communication apparatus 100 according to the present invention includes a display unit 120 for displaying an image of a video communication party, a display unit 120 for displaying an image of a user located between an eye position of the user and an eye position of the opponent, A camera unit 110 for acquiring an image of a user reflected by the translucent mirror unit 150 and a translucent mirror unit 150 and a camera unit 110 are disposed on one plane, The image provided from the housing unit 160 and the camera unit 110 including the angle adjusting means for adjusting the arrangement angles of the translucent mirror unit 150 and the camera unit 110 are transmitted to the video communication apparatus of the other party, And a transmission / reception unit 140 for providing the display unit 120 with an image received from the video communication apparatus of the other party.

The video communication apparatus 100 shown in FIG. 3 is a device to which a semi-transparent mirror unit 150 and a separate display unit 120 are added to a mobile terminal having a video communication function. The display unit 120 may be a projector device that projects an image received by the transmitter-receiver unit 140, or an output device that displays an image received by the transmitter unit. FIG. 3 shows a form in which a projector is included in the video communication apparatus 100. FIG. The projector projects the image received by the transmission / reception unit 140. [ If the display unit 120 uses the above-described separate output device, the image received by the transmission / reception unit 140 must be transmitted to an output device such as a separate monitor device through wired or wireless communication.

The video communication apparatus 100 has means for adjusting the angle of the camera unit 110 and the semi-transparent mirror unit 150. [ The camera angle adjusting means 115 is a means for adjusting the photographing angle of the camera, and the means for adjusting the angle of the semi-transparent mirror portion 150 is called a mirror angle adjusting means. Only the mirror angle adjusting means 155 is shown in FIG.

Unlike a general mobile terminal, the video communication apparatus 100 should include a camera angle adjusting unit 115 that can adjust an angle of view of a built-in camera. The camera angle adjusting means 115 adjusts the angle of the lens of the camera unit 110 itself or the camera unit 100 with respect to one plane of the housing unit 160 at a predetermined angle. The camera angle adjusting means 115 corresponds to a mechanical device, and various means applicable to a person skilled in the art can be used. The user may manually adjust the angle or adjust the angle of the camera unit 100 through the motor unit.

The video communication apparatus 100 should also include a mirror angle adjusting means 155 that can adjust the angle of arrangement of the semi-transparent mirror portion 150. The mirror angle adjusting means 155 shown in FIG. 3 is in the form of a rail inserted into a groove in the housing portion 160. Although not shown in detail, there is a means for fixing the rails in the grooves at a predetermined angle. The mirror angle tilting means 155 may also be implemented as a manual or automatic apparatus.

In the present invention, the angle adjusting means may be various means used in the field of the apparatus device. Since the device for adjusting the angle itself is not a feature of the present invention, a detailed description will be omitted.

The camera unit 110 uses a camera built in the mobile terminal for video communication. In FIG. 3, a transceiver 140 indicated by a dotted line corresponds to a communication module for exchanging data with a mobile terminal.

As another embodiment of the present invention, a video call auxiliary apparatus 200 using a general mobile terminal in combination will be described. 4 is a structural view illustrating a video call auxiliary apparatus 200 in which a mobile terminal 50 having a video call function is detached. 4 (a) shows a process of connecting the mobile terminal 50 to the video call auxiliary device 200, FIG. 4 (b) shows a state in which the mobile terminal 50 is coupled to the video call auxiliary device 200 / RTI >

The video call assistant apparatus 200 according to the present invention includes a projector unit 210 for projecting a video of the other party, a player unit 210 which is positioned between the eye position of the user and the eye position of the opponent in the video and reflects the video of the user, A housing 230 to which the translucent mirror 220 and the mobile terminal 50 including the camera are detached, a housing angle adjusting means 235 for adjusting the disposition angle of the housing 230, a translucent mirror 220, And a housing portion 240 including a mirror angle adjusting means 225 for adjusting the arrangement angle of the translucent mirror portion 220. [ The camera 55 of the mobile terminal 50 acquires the face image of the user reflected on the semi-transparent mirror unit 220.

The video call auxiliary apparatus 200 includes a projector unit 210 for receiving and projecting the image of the other party from the mobile terminal 50. When the mobile terminal 50 does not have a separate projector, the video call auxiliary apparatus 200 of the present invention can be used to make a video call by looking at the face of the other party projected on the screen. Although not shown in detail in FIG. 4, the video call auxiliary device 200 is connected to an interface device capable of inputting and outputting data from the mobile terminal 50, and receives image data. In addition to the physical interface device, it is also possible to transmit the image of the other party wirelessly using the short distance communication and project the image through the projector unit 210. In this case, the video communication auxiliary apparatus 200 should include a communication module capable of wireless communication.

The semi-transparent mirror unit 220 and the mirror angle adjustment unit 225 of the video call auxiliary apparatus 200 have the same configuration as the translucent mirror unit 150 and mirror angle adjustment unit 155 of the video communication apparatus 100 described above .

Meanwhile, since the general mobile terminal 50 can not adjust the arrangement angle of the camera 55, the video call auxiliary apparatus 200 according to the present invention can be used as a means for adjusting the angle of the housing 230 to which the mobile terminal 50 is coupled Is required. Whereby the mobile terminals can be arranged at a certain angle.

4 (b), the housing 230 is connected to the housing unit 240 having the semi-transparent mirror unit 220 and the mirror angle adjusting unit 225 disposed thereon in an enlarged manner. The housing portion 240 includes a housing 230, a housing angle adjusting means 235, a translucent mirror portion 220, and a mirror angle adjusting means 225.

For convenience of explanation, the housing 230 to which the mobile terminal 50 is coupled is referred to as a first housing, and the region where the semitransparent mirror portion is disposed is referred to as a second housing. The housing angle adjusting means 235 shown in FIG. 4 (b) is configured such that the first housing and the second housing are provided with circular rotating means so that the first housing and the second housing can be connected at different angles, Means for fixing the angle so that it can be fixed at an angle is disposed. As with other angle adjusting means, the housing angle adjusting means 235 of the video communication auxiliary apparatus 200 is not necessarily limited to this form, and various means applicable to a person skilled in the art can be used Of course.

Now, how to arrange the above-described arrangement angle of the camera and the translucent mirror will be described. Fig. 5 shows the position and arrangement angle of the camera and the semi-transparent mirror placed in the video communication apparatus or the video communication auxiliary apparatus in the yz plane.

In FIG. 5, Eye 1 denotes the eye position (y ₁ , z ₁ ) of the user, and Eye 2 denotes the opponent's eye position (y ₂ , z ₂ ) in the video call image. The coordinates of the part where the semitransparent mirrors 150 and 220 are connected in the video communication apparatus 100 or the video communication auxiliary apparatus 200 is (k, 0). (k, 0) is a position at which the mirror straight line starts, and when the translucent mirror portions 150 and 220 start at a certain angle with the plane of the video communication device 100 or the video communication auxiliary device 200 parallel to the y- It is also a branch office.

The condition for the virtual image of the camera to be located on the virtual line of sight is described. First, a virtual line of sight is expressed by the following Equation 1, and a straight line of a mirror is expressed by Equation 2 below.

이고,

이다.
here,

ego,

to be.

Here, θ is the one plane of a video communication apparatus 100 or the video call appliances (200) parallel to the y-axis refers to the angle which forms the semi-transparent mirror unit.

In the present invention, in order for the user and the other party's eyes to coincide (i. E., The virtual image of the camera is located on the virtual line of sight), i) a straight mirror line extending from the center of the translucent mirror is perpendicular to a virtual straight line connecting the camera and the virtual image (Ii) the angle between the translucent mirror and the camera (or the housing 230) should be adjusted so that the straight line of the mirror passes through the point where the direction line of the camera and the direction line of the virtual image meet.

).
In other words, the triangle that the straight line segments AD, DC, and AC consist of should be bisected by the mirror straight line (

).

FIG. 6 shows a straight line and a placement angle as a reference for confirming whether or not the line of sight of the other party is consistent in the video communication apparatus or the video communication assistance apparatus. In FIG. 6, a blue dotted line connected from the camera means an area where the camera captures an image reflected on a translucent mirror.

In the present invention match the user and the other side of the line of sight in order to (i. E., The camera virtual image located on a virtual line of sight line) is one plane of a video communication apparatus 100 or the video call appliances (200) parallel to the y-axis semi-transparent The first arrangement angle ? Formed by the mirror portion must satisfy the following expression (3).

)가 아래의 수학식 4를 만족해야 한다.
On the other hand, one plane of the video communication apparatus 100 or the video communication auxiliary apparatus 200 parallel to the y axis is arranged at a first arrangement angle

) Must satisfy the following expression (4).

)가 전술한 수식을 만족하도록 각 각도 조절 수단을 조절하면, 사용자와 상대방이 시선이 일치하는 상태에서 화상통화가 가능하다. 한편 도 6에서 제1 배치 각도라고 설명한 것은 거울 직선이나 카메라 방향선이 평행한 화상통화장치(100) 또는 화상통화 보조장치(200)의 한쪽 평면과 형성하는 다른 쪽 각도가 있기 때문에 제1 이라고 명명한 것이다. 경우에 따라서 제1 배치 각도들은 내각을 이룰 수도 있고 외각을 이룰 수도 있다.
As a result, the user can adjust the angle between the first arrangement angle ( ? ) Of the translucent mirror part and the first arrangement angle

) Adjusts the angle adjusting means so as to satisfy the above-described formula, a video communication is possible in a state in which the user and the other party coincide with each other. On the other hand, in FIG. 6, the first arrangement angle is referred to as the first arrangement angle because there is another angle formed between the mirror line and the camera line 100 parallel to the camera direction line or one plane of the video call auxiliary device 200 It is. Optionally, the first placement angles may form an interior angle or an exterior angle.

In the present invention, the user manually adjusts the angle of the semi-transparent mirror and the camera by viewing the position of the other's eye projected through the semi-transparent mirror. In another aspect of the present invention, an apparatus in which an angle of a translucent mirror and a camera are automatically adjusted will be described. In order to automatically adjust the angle, the position coordinates of the user eye and the position of the opponent eye should be calculated basically.

7 is a block diagram showing an example of a process of tracking the position of the eyes of the user and the other party. The position of the user's eye can be analyzed by analyzing the image acquired through the camera unit 110 of the video communication apparatus 100 or the camera 55 of the mobile terminal 50. [ Also, the position of the opponent's eye can be analyzed by analyzing the opponent's image. Since eye detection is a general technique in image processing techniques, detailed description is omitted. However, in this case, the position of the video communication apparatus 100 or the video communication auxiliary apparatus 200, and the position and the size of the video to be displayed on the other side image should be grasped. It is necessary to additionally use a device for locating the video communication apparatus and the screen on which the other party's image is displayed (or the monitor apparatus) at a fixed position or for acquiring the position of each one using a separate camera or the like.

The virtual line of sight is detected, assuming that the user's eye position and the other's eye position are obtained. Therefore, the video communication apparatus 100 or the video communication auxiliary apparatus 200 can control the angle of the camera unit (or the housing) And the angle of the camera (or the housing) and / or the semi-transparent mirror units 150 and 220 may be adjusted by driving the mirror angle adjusting units 155 and 225 and the mirror angle adjusting units 155 and 225 so as to align the eyes of the user and the counterpart. In this case, it is preferable that each angle adjusting means use an apparatus whose angle is adjusted through a motor.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. It will be understood that variations and specific embodiments which may occur to those skilled in the art are included within the scope of the present invention.

100: video communication apparatus 110:
115: camera adjusting means 120:
140: Transmitting / receiving unit 150: Semi-
155: mirror angle adjusting means 160: housing part
200: Video call auxiliary device 210:
220: translucent mirror part 225: mirror angle adjusting means
230: housing 235: housing angle adjusting means
240: housing part
50: mobile terminal 55: camera

Claims (12)

A display unit for displaying a video of a video call recipient;
A translucent mirror unit positioned between the eye position of the user and the eye position of the opponent in the image and reflecting the image of the user and transmitting the image of the opponent;
A camera unit for acquiring an image of a user reflected by the translucent mirror unit;
A housing part including the translucent mirror part and the camera part disposed on one plane, and angle adjusting means for adjusting an arrangement angle of the translucent mirror part and the camera part, respectively; And
And a transmitting and receiving unit for transmitting an image provided from the camera unit to the video communication apparatus of the other party and providing an image received from the video communication apparatus of the other party to the display unit. The method according to claim 1,
The display unit
A projector device for projecting the image received by the transmitter / receiver, or an output device for displaying the image received by the transmitter. The method according to claim 1,
Wherein a virtual image of the camera unit is located on a straight line connecting the eye position of the user and the eye position of the counterpart. The method of claim 3,
Wherein the angle adjusting means is arranged such that a longitudinal mirror straight line extending from the center of the semi-transparent mirror portion is perpendicular to a virtual straight line connecting the camera portion and the virtual image, and passes through a point where the directional line of the camera portion and the directional line of the virtual image meet And controls an arrangement angle of the semi-transparent mirror part and the camera. The method according to claim 1,
Wherein a first arrangement angle ( ? ) Formed by one plane of the housing part and the semi-transparent mirror part is determined by the following formula.

(Wherein, yz coordinate plane with a mirror line extending in the longitudinal direction in the center of the semi-transparent mirror portion, and the coordinates of the point (k, 0), starting from the housing section, the coordinates of the user's eye position (y _1, on z ₁ ), the eye position coordinate of the other party is (y ₂ , z ₂ )

ego,

being) The method according to claim 1,
A first arrangement angle formed by one plane of the housing part and a direction line of the camera part

) Is determined by the following equation.

(Wherein, yz coordinate plane with a mirror line extending in the longitudinal direction in the center of the semi-transparent mirror portion, and the coordinates of the point (k, 0), starting from the housing section, the coordinates of the user's eye position (y _1, on z ₁ ), the eye position coordinate of the other party is (y ₂ , z ₂ )

ego,

being) A projector unit for projecting a video of a video call recipient;
A translucent mirror unit positioned between the eye position of the user and the eye position of the opponent in the image and reflecting the image of the user and transmitting the image of the opponent; And
And a housing unit including a housing for attaching and detaching a mobile terminal including a camera, a housing angle adjusting unit for adjusting an arrangement angle of the housing, and a mirror angle adjusting unit connected to the translucent mirror unit to adjust an arrangement angle of the translucent mirror unit Wherein the camera acquires an image of a user reflected by the semi-transparent mirror part, and the projector part receives the image of the other party from the mobile terminal. 8. The method of claim 7,
Wherein a virtual image of the camera is positioned on a virtual line connecting the eye position of the user and the eye position of the counterpart. 9. The method of claim 8,
Wherein said housing angle adjusting means is arranged such that a longitudinal mirror straight line extending from the center of said semitransparent mirror portion is perpendicular to a virtual straight line connecting said camera and said virtual image plane and passing through a point where said camera's direction line and said virtual image direction line meet And adjusts an arrangement angle of the housing. 9. The method of claim 8,
Wherein said mirror angle adjusting means is arranged such that a longitudinal mirror straight line extending from the center of said semi-transparent mirror portion is perpendicular to a virtual straight line connecting said camera and said virtual image plane, and passing through a point where said camera image direction and said virtual image direction line meet Wherein the translucent mirror portion is arranged at a predetermined angle. 8. The method of claim 7,
Wherein a virtual straight line in the longitudinal direction of the housing part and a first arrangement angle ? Formed by the translucent mirror part are determined by the following formula.

(Wherein, yz coordinate plane with a mirror line extending in the longitudinal direction in the center of the semi-transparent mirror portion, and the coordinates of the point (k, 0), starting from the housing section, the coordinates of the user's eye position (y _1, on z ₁ ), the eye position coordinate of the other party is (y ₂ , z ₂ )

ego,

being) 8. The method of claim 7,
A first arrangement angle formed by a virtual straight line in the longitudinal direction of the housing part and a direction line of the camera

) Is determined by the following equation.

(Wherein, yz coordinate plane with a mirror line extending in the longitudinal direction in the center of the semi-transparent mirror portion, and the coordinates of the point (k, 0), starting from the housing section, the coordinates of the user's eye position (y _1, on z ₁ ), the eye position coordinate of the other party is (y ₂ , z ₂ )

ego,

being)

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