KR20190142290A - Method for control a camera apparatus and the camera apparatus - Google Patents

Abstract

The present invention relates to a method for controlling operations of a camera apparatus so that a user can control operations of a camera apparatus conveniently according to a gesture of a subject input through a camera lens and the camera apparatus. According to the present invention, the method for controlling operations of a camera apparatus comprises the steps of: generating an image frame by receiving an image input through a camera lens; comparing the image frame with at least one previous frame stored before the image frame to detect a movement of a subject included in the image frame; determining whether the movement of the subject is a gesture UI; and performing an operation corresponding to the gesture UI when the movement is determined to be the gesture UI.

Description

Method for controlling the operation of the camera device and the camera device TECHNICAL FIELD

The present invention relates to a camera, and more particularly, to a method for controlling an operation of a camera device to allow a user to conveniently control the operation of a camera device according to a gesture of a subject input through a lens of the camera, and to the camera device. It is about.

Typically, the digital image processing apparatus includes all devices that process images such as a digital camera, a personal digital assistant (PDA), a phone camera, a PC camera, or use an image recognition sensor. The digital image processing apparatus may image an image received through an imaging device in a digital signal processor, compress the image, generate an image file, and store the image file in a memory.

Meanwhile, as the main consumer class of digital cameras is expanded from a few experts to the general public, the age and field of use of the consumer class are expanding. In particular, in recent years, people in their 10s and 30s frequently use digital cameras. Teenagers in their 30s and 30s frequently use the self-camera method of photographing themselves using a camera. However, when taking a picture using a self-camera method, the user must also serve as the subject, so it is not easy to shoot because the user needs to focus the camera lens on himself and press the shutter of the camera. In addition, the lens is disposed on the front of the digital camera, while the menu button for changing the camera settings is often provided on the rear. When taking a picture by the self-camera method, the user plays the role of a subject and should be located in front of the camera lens. This makes it difficult for the user to use the functions of the digital camera as desired while shooting.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of controlling the operation of a camera device and a camera device for allowing a user to conveniently control the operation of a camera device according to a gesture of a subject input through a lens of a camera.

According to an embodiment of the present invention, a method of controlling an operation of a camera device includes: receiving an image input through a camera lens to generate an image frame, and at least one transfer stored before the image frame and the image frame Comparing the frames to detect the movement of the subject included in the image frame; determining whether the movement of the subject is a gesture UI; and if the movement is the gesture UI, the determination corresponds to the gesture UI. It includes the process of executing the operation.

According to another aspect of the present invention, there is provided a method of controlling an operation of a camera apparatus, including: receiving a first gesture UI from a subject; determining whether a second gesture UI is received from the subject within a reference time; When the second gesture UI is input within the reference time, determining the first gesture UI and the second gesture UI as a continuous gesture UI, and performing an operation corresponding to the continuous gesture UI. do.

A camera apparatus according to an embodiment of the present invention includes a camera for generating an image frame by receiving an image input from the outside, and comparing the image frame with at least one previous frame stored before the image frame to the image frame. And a gesture recognizing unit detecting a movement of the subject included, and determining whether the movement of the subject is a gesture UI, and if the movement is a gesture UI, executing the operation corresponding to the gesture UI. .

According to the present invention, there is provided a method of controlling an operation of a camera device for allowing a user to conveniently control an operation of a camera device according to a gesture of a subject input through a lens of a camera, and the camera device.

1 is a block diagram showing the configuration of a camera apparatus according to an embodiment of the present invention;
2 is a flowchart illustrating an example of a method of controlling an operation of the camera apparatus shown in FIG. 1;
3 is a flowchart illustrating another example of a method of controlling an operation of the camera apparatus shown in FIG. 1;
4 is a flowchart illustrating still another example of a method of controlling an operation of the camera apparatus shown in FIG. 1;
5 is a flowchart illustrating still another example of a method of controlling an operation of the camera apparatus shown in FIG. 1;
6A-6D illustrate gesture UIs according to an embodiment of the present invention.
7A is a diagram illustrating a gesture UI according to another embodiment of the present invention, and FIGS. 7B and 7C illustrate an image frame displayed on a display unit according to a continuous gesture UI.
8A to 8D are diagrams illustrating a second gesture UI shown in FIG. 7B;
9 is a flowchart illustrating still another example of a method of controlling an operation of the camera apparatus shown in FIG. 1;
10 is a view showing a motion trajectory of a gesture UI recognized by a gesture recognition unit according to an embodiment of the present invention;
11 is a view showing a motion trajectory of a gesture UI recognized by a gesture recognition unit according to another embodiment of the present invention;
FIG. 12A is an image displayed on a display unit of a camera apparatus operating according to the method illustrated in FIG. 9, and FIG. 12B is an image showing an image input and photographed through a lens of the camera apparatus.
13A is a view illustrating a continuous gesture UI and image processing according to a continuous gesture UI according to an embodiment of the present invention; and
14A and 14B illustrate an image processing according to a continuous gesture UI and a continuous gesture UI according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, specific details such as specific components are shown, which are provided to help a more general understanding of the present invention, and it is understood that these specific details may be changed or changed within the scope of the present invention. It will be obvious to those of ordinary skill in the field.

1 is a block diagram showing the configuration of a camera apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the camera apparatus 100 includes a camera 110, a gesture recognition unit 120, a memory 130, and a controller 140, and further includes a user input unit 152 and a display unit 154. It may include.

The camera 110 receives an image through a lens (not shown) provided. The camera 110 according to the present embodiment may include two or more lenses. In addition, the camera 110 may receive a gesture UI generated by a user using the camera apparatus 100 or a subject photographed by the camera apparatus 100. The camera 110 converts an image input through a lens into an image frame. The camera 110 may continuously store or temporarily store an image input through a lens in real time on a frame-by-frame basis. According to an exemplary embodiment, the camera 110 may sequentially receive movements of a subject corresponding to at least one gesture UI from the subject.

Hereinafter, for convenience of explanation, an image frame obtained by converting an image currently input among the image frames generated by the camera 110 is referred to as a 'current frame', and an image frame generated before the current frame is generated ' It is referred to as the previous frame.

The gesture recognition unit 120 detects a movement of the user or a subject, that is, a gesture, from the image input through the camera 110. The gesture recognition unit 120 may determine the gesture of the user or the subject by comparing the current frame generated by the camera 110 with at least one previous frame.

The gesture recognition unit 120 may detect a user or a subject from image frames which are being converted in real time through the camera 110. The gesture recognition unit 120 may generate frame data including data such as contour, brightness, saturation, color, coordinate, and the like of each object included in each of the image frames, for each of the image frames. The gesture recognition unit 120 detects a subject by using frame data of each of the image frames. The gesture recognition unit 120 may determine an object whose contour, brightness, saturation, color, and coordinates do not change more than a preset number of image frames under the control of the controller 140.

In the present invention, the 'user' is a person who intends to photograph by using the camera apparatus 100, and the 'subject' refers to a person who is photographed by the camera apparatus 100. In the present invention, the subject may include a user of the camera apparatus 100.

The gesture recognition unit 120 compares the previous frame and the current frame to determine the movement of the subject included in each of the frames. According to an exemplary embodiment, the gesture recognition unit 120 may determine the movement of the subject by comparing the number of frames pre-stored in the memory 130 or image frames input during the pre-stored time.

According to an exemplary embodiment, the gesture recognition unit 120 may detect a movement area in an image frame. The 'movement area' indicates an area where the movement of the subject is largest among the image frames, and the gesture recognition unit 120 may compare the at least two image frames with each other and extract the moving area. The movement area may include at least a portion of an image frame.

When the movement region is detected, the gesture recognition unit 120 may predict the movement trajectory of the subject in the movement region under the control of the controller 140. According to the movement of the subject, the movement of the subject may not all be input through the lens of the camera 110. For example, when the subject draws a circle by hand, a part of the circle drawn by the subject may not be input through the camera 110 beyond the angle of view of the lens. In this case, the gesture recognizing unit 120 may predict the movement trajectory of the subject in the movement area in case the movement of the subject is not completely input.

For example, suppose that the subject is drawing a circle with the right hand in the previous frames generated before the current frame. The gesture recognition unit 120 detects an area in which the right hand is moving by the subject as a 'motion area' and detects that the right hand of the subject is drawing a circle in the movement area. Accordingly, the gesture recognition unit 120 may expand the current frame under the control of the controller 140 to predict the trajectory of the motion of drawing the circle at the point where the right hand of the subject is outside the angle of view of the camera 110.

As described above, the gesture for requesting the operation of the camera apparatus 100 among the gestures recognized by the gesture recognition unit 120 is referred to as a "gesture UI". For example, it is assumed that a subject draws a circle using his right hand, and then the lens of the camera 110 is zoomed in. In the above example, the action of the subject drawing a circle with his right hand corresponds to the gesture UI.

The gesture recognition unit 120 according to the present exemplary embodiment may detect a gesture UI continuously input from the subject in the movement area through the lens of the camera 110. For example, the gesture recognition unit 120 may sequentially detect the first gesture and the second gesture of the subject in the movement area. For example, the subject may take the gesture UI corresponding to the shooting immediately after taking the gesture UI corresponding to the zoom in. In addition, the camera device 100 may receive the first gesture and the second gesture as a gesture UI and sequentially perform a zoom-in operation and a photographing operation. As described above, at least two gesture UIs continuously input through the camera 110 are referred to as 'continuous gesture UI'.

According to an exemplary embodiment, the continuous gesture UI may be input to the camera 110 to perform a specific operation that may be performed in the camera apparatus 100 and to perform step by step of the specific operation. For example, assume that the continuous gesture UI includes a first gesture and a second gesture. The first gesture may be a gesture UI for requesting a zoom in, and the second gesture may be a gesture UI corresponding to a magnification value (eg, '3 times') of the zoom in / out. For example, if the subject moves in the order of 'first gesture to second gesture', and the controller 140 determines the first gesture and the second gesture as the continuous gesture UI, the controller 140 controls the camera 110. The camera apparatus 100 may be controlled to zoom in on a 3X zoom-in subject. According to another embodiment, the first gesture may be a gesture UI for requesting zoom out, and the second gesture may be a gesture UI corresponding to a magnification value (eg, '1/3 times'). It is assumed that the first gesture and the second gesture are sequentially input by moving the subject in the order of 'first gesture to second gesture'. The controller 140 may control the camera apparatus 100 to zoom out by reducing the size of a subject photographed by the camera 110 by 1/3 times.

As another example, the first gesture may correspond to '2 times zoom in' among the zoom in operations, and the second gesture may be '3 times zoom in'. The subject moved in the order of 'first gesture to second gesture', and the controller 140 determined the gestures as the continuous gesture UI. The controller 140 may first control the camera apparatus 100 to zoom in on the object photographed by the camera 110 first, and then zoom in on the 2 × zoomed in subject. Accordingly, the initial subject may be zoomed in '2 × 3' times, that is, 6 times.

According to an exemplary embodiment, even when the movement of the subject is not all input through the lens of the camera 110, the gesture recognition unit 120 may predict the movement trajectory of the subject. For example, assume that the subject is inputting a gesture UI that draws a circle by hand. Before the subject completes the 360 ° circle, the gesture recognition unit 120 detects the movement of the subject input through the camera 110 to predict the movement trajectory of the subject's hand to draw the 360 ° circle. Can be determined.

For example, the gesture recognizing unit 120 may consider that the subject draws a 360 ° circle even when the subject draws 330 ° from a 360 ° circle. In addition, the motion of the subject regarded as described above may also be detected by the gesture recognition unit 120 as a gesture UI.

The memory 130 stores various data for controlling the operation of the camera apparatus 100. In the memory 130, image frames input in real time through the camera 110 may be stored or temporarily stored. In addition, the memory 130 may store various gesture UIs and operations of the camera apparatus 100 corresponding to the gesture UIs. The memory 130 may store a continuous gesture UI and various operations of the camera apparatus 100 corresponding to the continuous gesture UI. In addition, the memory 130 may store a reference time for determining whether the gesture UIs are continuously input, that is, whether the continuous gesture UI is input. For example, the control unit 140 may determine the first gesture and the second gesture as the continuous gesture UI only when the second gesture is input within a reference time after the first gesture is recognized by the gesture recognition unit 120. have.

The gesture UI refers to a gesture for executing a specific operation by the camera apparatus 100 among the movements of the subject detected by the gesture recognition unit 120. Gesture UI is for example zoom in, zoom out, shoot, shutter speed up and down, ISO up and down, white balance adjustment, focus position adjustment, continuous shooting, color temperature adjustment, flash Gestures for making use, selecting a shooting mode, and the like are included.

 The photographing mode includes, for example, at least one of a program AE (Auto Exposure) mode, a shutter-priority AE mode, an aperture-priority AE mode, a manual exposure mode, and a bulb exposure mode.

The controller 140 controls the overall operation of the camera device 100.

The controller 140 according to the present exemplary embodiment determines and determines whether the movement of the subject detected by the gesture recognition unit 120 is the gesture UI. When the gesture UI is detected by the gesture recognition unit 120, the camera apparatus 100 is controlled to perform an operation corresponding to the corresponding gesture UI.

According to an exemplary embodiment, the controller 140 may control the camera apparatus 100 to perform an operation corresponding to each of the gesture UIs included in the continuous gesture UI according to the continuous gesture UI.

For example, assume that the first gesture is an operation for requesting a zoom in and the second gesture is a magnification of the zoom in / out. When the first gesture is detected by the gesture recognition unit 120, and the second gesture is input from the subject immediately after the first gesture is input, the controller 140 determines the first gesture and the second gesture as 'continuous gesture UI'. Can be decided. The controller 140 controls the camera apparatus 100 to perform an operation corresponding to the continuous gesture UI.

According to an exemplary embodiment, the controller 140 may determine whether the second gesture is input from the subject within a reference time immediately after the input of the first gesture. If the second gesture is not input within the reference time, the controller 140 may determine the first gesture and the second gesture as separate gesture UIs. On the other hand, when the second gesture is input within the reference time, the controller 140 may determine the first gesture and the second gesture as the continuous gesture UI.

The user input unit 152 receives a user input input to the camera device 100. According to the present embodiment, the user input unit 152 may receive a user input for receiving a gesture UI.

According to an embodiment, the user input unit 152 may receive a user input for a movement area. For example, if the user input unit 152 receives the 'arm' of the subject's body as the main movement region from the user, the gesture recognition unit 120 determines whether the region in which the arm of the subject is included in the image frame is the movement region. Can be analyzed first. As described above, the movement region is preset by the user, thereby saving time for the gesture recognition unit 120 to detect the movement region.

The display unit 154 displays various data of the camera apparatus 100. According to an exemplary embodiment, the display unit 154 may display an image input in real time through the lens of the camera 110 using a provided touch screen. In addition, the display unit 154 may display a photo file stored in the memory 130.

The display unit 154 according to the present exemplary embodiment may display a gesture UI input in real time through the lens of the camera 110.

FIG. 2 is a flowchart illustrating an example of a method of controlling an operation of the camera apparatus shown in FIG. 1.

Referring to FIG. 2, first, the camera apparatus 100 receives an image input through the camera 110 (S202). The camera 110 generates an image frame by using the image input in step S202 and transfers the generated image frame to the gesture recognition unit 120. In this case, the generated image frame is called a "current frame," and an image frame generated before the current frame is called a "previous frame."

The gesture recognition unit 120 detects a subject included in the current frame (S204). In addition, the gesture recognition unit 120 detects the movement of the subject detected in step S204 by comparing the at least one previous frame with the current frame (S206).

When the movement of the subject is detected, the controller 140 determines whether the movement of the subject detected in step S206 is a gesture UI (S208). If the determination result of step S208 is the gesture UI, the controller 140 determines an operation corresponding to the detected gesture UI (S210). The controller 140 may search the memory 130 and determine an operation corresponding to the gesture UI.

When the operation corresponding to the gesture UI is determined, the controller 140 controls the camera apparatus 100 to execute the operation corresponding to the gesture UI (S212).

FIG. 3 is a flowchart illustrating another example of a method of controlling an operation of the camera apparatus shown in FIG. 1.

Referring to FIG. 3, the camera apparatus 100 receives an image input through the camera 110 (S302). The camera 110 generates an image frame by using the image input in step S302 and transmits the generated image frame to the gesture recognition unit 120.

The gesture recognition unit 120 detects a subject included in the image frame (S304). In addition, the gesture recognition unit 120 compares the at least one previous frame and the current frame to detect the movement of the subject detected in step S304 (S306).

When the movement of the subject is detected, the controller 140 determines whether the movement detected in step S306 is a zoom-in gesture (S308). If the result of the determination in step S308 is a zoom in gesture (S308: YES), the controller 140 controls the camera apparatus 100 to perform a zoom in operation (S310). Accordingly, the display unit 154 may display an image of the zoomed-in subject.

If the result of the determination in step S308 is not a zoom in gesture (S308: No), the controller 140 determines whether the motion zoom out gesture is detected in step S306 (S312). If the result of the determination in step S312 is a zoom out gesture (S312: YES), the controller 140 controls the camera apparatus 100 to perform a zoom out operation (S314). Accordingly, the display unit 154 may display an image of a zoomed-out subject.

If the result of the determination in step S312 is not the zoom out gesture (S312: NO), the controller 140 determines whether the movement detected in step S306 is a photographing gesture (S316). If the determination result of step S316 is a photographing gesture (S316: YES), the controller 140 controls the camera apparatus 100 to perform a photographing operation (S318). Accordingly, the camera 110 may convert an image frame, that is, a current frame, input through the lens into an image file and store the image frame in the memory 130. In addition, under the control of the controller 140, the camera apparatus 100 may display an image file stored in the memory 130 through the display 154.

In the present embodiment, the control unit 140 determines whether the movement of the subject detected in step S306 is a zoom-in gesture, determines whether it is a zoom-out gesture, and then determines whether it is a shooting gesture. For example, the type of the gesture UI may be determined in a different order. According to another exemplary embodiment, the controller 140 may search the memory 130 for the same gesture UI as the movement of the subject detected in operation S306.

4 is a flowchart illustrating still another example of a method of controlling an operation of the camera apparatus shown in FIG. 1. In FIG. 4, it is assumed that a gesture UI input to the camera device 100 is a gesture UI for capturing or a UI for zoom-in.

In FIG. 4, it is assumed that a value for determining a type of a gesture UI of a subject input through the camera 110 and gmask is set to true (= 1). That is, it is assumed that true (= 1) is already stored as a gmask in the memory 130.

It is assumed that the circular gesture is the gesture UI for the zoom-in operation, and the linear gesture is the gesture UI for the shooting operation. In addition, in the present embodiment, it is assumed that the value of the motion trajectory predicted by the gesture recognition unit 120 is '1' for a circular gesture and '0' for a linear gesture.

The camera device 100 receives an image input through the camera 110. The camera 110 generates an image frame using the image input through the camera 110 and transmits the generated image frame, that is, the current frame, to the gesture recognition unit 120.

The gesture recognition unit 120 detects a subject included in the image frame (S402). In addition, the gesture recognition unit 120 detects the movement of the subject detected in step S402 (S404). When the movement of the subject is detected, the gesture recognizing unit 120 detects an area in which the subject moves, that is, a movement region (S406). When the movement region is detected, the gesture recognition unit 120 predicts the movement trajectory of the subject in the movement region (S408). The 'movement trajectory' refers to a movement path in which at least a part of the subject moves within image frames as the subject moves. The gesture recognition unit 120 may predict the movement of the subject in the first and second movement regions based on the first movement regions included in the previous frames and the second movement region included in the current frames. .

According to an embodiment, in step S408, the controller 140 may predict whether the motion trajectory is a circular gesture (= true) or a linear gesture (= false). Accordingly, in step S410, the controller 140 may compare the gmask with the value (true or false) of the motion trajectory predicted in step S408.

The controller 140 determines whether gmask is true (= 1) (S410). If the determination result in step S410 is true (S410: Yes), the controller 140 determines that the movement of the subject detected in step S404 is a circular gesture (S412). The circular gesture refers to a gesture in which the movement trajectory of the subject predicted by the camera device 100 is circular. The subject may input a circular gesture to the camera 110 by performing an operation of drawing a circle or an ellipse using a hand.

The controller 140 determines whether the circular gesture, more precisely, the center angle of the circle drawn by the subject is 270 ° or more (S414). The purpose of determining whether the center angle of the circle is 270 ° or more is to determine the circle drawn by the subject as a circular gesture even when the subject draws the circle less or the part of the circle drawn on the subject is outside the lens angle of view. . That is, the center angle 270 ° of the circle is a reference value for determining whether the motion input by the subject is a motion included in the gesture UI. According to the embodiment, the center angle of the circle may be various values such as 180 ° and 360 °. Also, the center angle is an angle formed by the arc of the circle drawn by the subject with respect to the center of the circle, that is, the center angle. In the present embodiment, the controller 140 recognizes the movement of the subject as the gesture UI corresponding to the circular gesture only when the center angle is 270 ° or more, and performs an operation corresponding to the circular gesture.

If the center angle is 270 ° or more as a result of the determination in step S414 (S414: Yes), the controller 140 controls the camera device 100 to perform a zoom in operation (S416).

As a result of the determination in step S414, when the center angle is less than 270 ° (S414: No), the controller 140 changes the gmask to an opposite value of ture, that is, false (= 0) (S424). Since the center angle is less than 270 °, the gesture UI is not a circular gesture. Accordingly, the controller 140 may determine whether the gesture UI corresponds to a linear gesture. The controller 410 may control the camera apparatus 100 to perform an operation corresponding to the linear gesture by repeating steps S410 to S422.

If the determination result in step S410 is not true (= 1) (S410: NO), that is, if the gmask is flase (= 0), the controller 140 determines that the movement of the subject detected in step S404 is a linear gesture ( S418). The linear gesture refers to a gesture in which the movement of the subject input through the lens of the camera 110 is linear. The subject may input a linear gesture to the camera 110 by drawing a straight line from left to right or right to left using a hand. In addition, the subject may input a linear gesture to the camera 110 by drawing a straight line from the top or the bottom.

The controller 140 determines whether the linear gesture is equal to or greater than the reference value (S420). In this case, the reference value is also used to determine a straight line drawn on the subject as a linear gesture even when the subject draws a straight line less than a straight line or a part of the straight line is out of the lens angle of view. For example, assuming that the straight line drawn by the subject from the left to the right by 30 cm or more is a linear gesture, the controller 140 of the camera apparatus 100 indicates that the straight line drawn by the subject is a linear gesture when the straight line drawn by the subject is 25 cm or more. You can decide. In step S420, the 25 cm may be a reference value.

If the determination result of step S420 is greater than or equal to the reference value (S420: YES), the controller 140 controls the camera apparatus 100 to perform a photographing operation (S422).

If the determination result in step S420 is less than the reference value (S420: no), the controller 140 changes the gmask to a value opposite to false, that is, true (= 1) (S426). Since the center angle is less than 270 °, the gesture UI is not a circular gesture. Therefore, the controller 140 may determine whether the gesture UI corresponds to a circular gesture. The controller 410 may control the camera apparatus 100 to perform an operation corresponding to the circular gesture by repeating steps S410 to S416.

5 is a flowchart illustrating still another example of a method of controlling an operation of the camera apparatus shown in FIG. 1.

Referring to FIG. 5, the gesture recognition unit 120 of the camera apparatus 100 detects a first gesture as a gesture UI (S502).

Before operation S502, the camera apparatus 100 detects at least one gesture UI input through the camera 110. The gesture recognition unit 120 detects the gesture UI as follows. The camera 110 generates an image frame using an image input through a lens. In addition, the camera 110 transmits the image frame, that is, the current frame, to the gesture recognition unit 120. The gesture recognition unit 120 detects a subject included in the image frame. In addition, the gesture recognition unit 120 detects a movement area in the image frame. When the movement area is detected, the gesture recognition unit 120 determines the movement trajectory of the subject in the movement area. The gesture recognition unit 120 may determine the movement of the subject in the first and second movement regions based on the first movement regions included in the previous frames and the second movement region included in the current frames. . In the present embodiment, for the convenience of description, the process of detecting the gesture UI by the gesture recognition unit 120 is omitted in the drawing.

When the first gesture is detected, the controller 140 determines an operation corresponding to the first gesture (S504). The controller 140 determines whether a second gesture is input within a reference time (S506).

If the second gesture is not input within the reference time as a result of the determination in step S506 (S506: No), the camera apparatus 100 performs only an operation corresponding to the first gesture (S514).

If the second gesture is input within the reference time as a result of the determination in step S506 (S506: Yes), the controller 140 determines the first gesture and the second gesture as the continuous gesture UI (S508). The controller 140 determines an operation corresponding to the continuous gesture UI (S510). The camera device 100 performs an operation corresponding to the continuous gesture UI (S512).

In this embodiment, the operation corresponding to the gesture UI including one gesture and the operation corresponding to the continuous gesture UI including at least two gestures may be different. For example, assume that an operation corresponding to the first gesture is zoom in. An operation corresponding to the continuous gesture UI including the first gesture and the second gesture may be a change of a shooting mode of the camera apparatus 100. According to the above example, when only the first gesture is input from the subject through the camera 110, the camera apparatus 100 performs a zoom in operation. On the other hand, when the continuous gesture UI is applied to the first gesture and the second gesture continuously from the subject, the camera device 100 changes the shooting mode.

6A to 6D illustrate gesture UIs according to an embodiment of the present invention. 6A to 6D, it is assumed that the subject is a user who uses the camera apparatus 100.

6A is a zoom in gesture for requesting a zoom in to the camera device 100, and FIG. 6B is a zoom out gesture for requesting a zoom out. When the subject takes a zoom in gesture to rotate the hand clockwise, the camera device 100 detects the zoom in gesture and performs a zoom in operation. When the subject takes a zoom out gesture to rotate the hand counterclockwise, the camera device 100 detects the zoom out gesture and performs a zoom out operation.

6C and 6D are vertical gestures and horizontal gestures for requesting photographing. When the subject takes a vertical gesture of lowering the hand in the vertical direction or raising the hand in the vertical direction, the camera apparatus 100 detects the vertical gesture and performs a photographing operation. In addition, when the subject moves the hand from the right to the left in the horizontal direction or the horizontal gesture moves the hand from the left to the right in the horizontal direction, the camera apparatus 100 detects the horizontal gesture to photograph the subject.

As described above, the subject, ie, the user, takes a movement corresponding to the gesture UIs illustrated in FIGS. 6A and 6B to zoom in or zoom out the lens of the camera 110 without directly manipulating the camera apparatus 100. Can be. In addition, the subject may control the camera apparatus 100 to photograph the subject itself without directly manipulating the camera apparatus 100 by taking a movement corresponding to the gesture UIs illustrated in FIGS. 6C and 6D.

7A is a diagram illustrating a gesture UI according to another exemplary embodiment of the present invention, and FIGS. 7B and 7C are diagrams illustrating an image frame displayed on the display unit 154 according to a continuous gesture UI. It is assumed that each of the continuous gesture UIs of FIGS. 7B and 7C is for performing a zoom in operation of the camera 110 and a zoom out operation of the camera 110.

Referring to FIG. 7A, the gesture recognition unit 120 detects a motion area 700 included in an image frame (hereinafter, referred to as an original frame) 720 generated in real time through the camera 110, and detects the motion area ( Track or determine the movement of the subject at 700. In this embodiment, the subject uses a CW (Counter Wise) gesture 702 to rotate the hand clockwise or a CounterClock Wise (CCW) gesture 712 to rotate the hand counterclockwise to the camera device 100 as a gesture UI. Assume that you enter.

Referring to FIG. 7B, the subject is inputting the second CW gesture 704 to the camera apparatus 100 immediately after the first CW gesture 702 is input. When the second CW gesture 704 is taken, it is assumed that the subject has rotated his hand A °. As shown in FIG. 7B, the subject may input the continuous gesture UI to the camera 110 by sequentially taking the first CW gesture 702 and the second CW gesture 704.

The continuous gesture UI of FIG. 7B is for performing a zoom in operation of the camera 110. The subject requests the camera device 100 to zoom in by taking the first CW gesture 702, and the zoom in magnification is obtained by taking the second CW gesture 704 that is continuous with the first CW gesture 702. You can type in In FIG. 7B, it is assumed that the magnification corresponds to the center angle of the second CW gesture 704 and the magnification corresponding to A ° is 'three times'. The controller 140 controls the camera 110 to zoom in the lens of the camera 110 by 3 times, and the camera 110 controls an image frame (hereinafter, referred to as an enlarged frame) 730 when the lens is zoomed in 3 times. Create

Referring to FIG. 7C, the subject is inputting the second CCW gesture 714 to the camera device 100 immediately after the first CCW gesture 712 is input. When taking the second CCW gesture 714, it is assumed that the subject has rotated the hand by the center angle B °. As illustrated in FIG. 7C, the subject may input the continuous gesture UI to the camera apparatus 100 by sequentially taking the first CCW gesture 712 and the second CCW gesture 714.

The continuous gesture UI of FIG. 7C is for performing a zoom out operation of the camera 110. The subject requests the camera device 100 to zoom out by taking the first CCW gesture 712 and the zoom out magnification by taking the second CCW gesture 714 that is continuous with the first CCW gesture 712. You can type in In FIG. 7C, it is assumed that the magnification corresponds to the center angle of the second CCW gesture 714 and the magnification corresponding to B ° is '1/2'. The controller 140 controls the camera 110 to zoom out the lens of the camera 110 by 1/2 times, and the camera 110 controls an image frame (hereinafter, referred to as a reduced frame) when the lens is zoomed out by 1/2. Generate 740.

Referring to FIG. 7C, when the first CCW gesture 712 is input, the enlarged frame 730 is displayed on the display unit 154. As the second CCW gesture 714 is input, the display unit 154 displays a reduced frame 740 obtained by reducing the magnification of the enlarged frame 730 to 1/2.

8A to 8D illustrate the second gesture UI illustrated in FIG. 7B. 8A to 8D are all circular second gesture UIs, which may be input after the first gesture UI of FIG. 7B, that is, the first CW gesture 702 is input from the subject 800 to the camera device 100.

8A to 8D, the object 800 may request the camera device 100 to zoom in at different magnifications by drawing a circular second gesture UI having different center angles by hand. have.

8A is a second gesture UI having a center angle of 90 °, FIG. 8B is a second gesture UI having a 180 ° angle, FIG. 8C is a second gesture UI having a center angle of 270 °, and FIG. 8D is a second gesture UI having a center angle of 360 °. . 8A to 8D, it is assumed that the zoom-in magnification is 2 times at 90 °, 3 times at 180 °, 4 times at 270 °, and 5 times at 360 °.

According to the present exemplary embodiment, the user, that is, the subject 800 may request the camera apparatus 100 for a desired zoom-in magnification by drawing a second gesture UI corresponding to each magnification by hand. In addition, as shown in FIGS. 8A to 8D, when the circle drawn by the hand has a center angle corresponding to a desired magnification, the movement of the hand stops at the points 801, 802, and 803 corresponding to the center angle. As a result, the camera apparatus 100 may be notified that the input of the second gesture UI is completed. When the movement of the subject 800 stops at the points 801, 802, and 803, the controller 140 of the camera apparatus 100 estimates the circular center angle drawn by the hand of the subject 800. 120 may be controlled. When the center angle is estimated by the gesture recognition unit 120, the controller 140 controls the camera 110 to zoom in at a magnification corresponding to the center angle.

According to another embodiment, when the circle drawn by the hand has the center angle corresponding to the desired magnification, the subject 800 may complete the input of the second gesture UI by returning the hand. When the hand is returned to the origin 811, 812, 813, 814 from the points 801, 802, and 803 corresponding to the center angle, the control unit 140 of the camera apparatus 100 is a circle drawn by the hand of the subject 800. The gesture recognition unit 120 may be controlled to estimate the center angle of the gesture. When the center angle is estimated by the gesture recognition unit 120, the controller 140 controls the camera 110 to zoom in at a magnification corresponding to the center angle.

9 is a flowchart illustrating still another example of a method of controlling an operation of the camera apparatus shown in FIG. 1.

Referring to FIG. 9, the camera apparatus 100 initializes zooming (S902). In operation S902, it is assumed that the camera apparatus 100 has driven the camera 110, and accordingly initializes the zoom of the lens included in the camera 110.

In addition, in FIG. 9, the zoom of the camera apparatus 100 may be divided into an analog zoom and a digital zoom. Analog zoom means that the camera device 100 physically moves the lens of the camera 110 to increase or decrease the size of the subject in the image input through the lens. Digital zoom means to enlarge or reduce at least a portion of an image frame generated by the camera 110 to increase or decrease the size of a subject in an image input through a lens.

When the camera apparatus 100 according to the present exemplary embodiment receives a user input for a zoom in / out operation from a user, it is assumed that the camera apparatus 100 performs an analog zoom in / out operation. In addition, the camera apparatus 100 according to the present exemplary embodiment displays the subject zoomed in / out using the digital zoom in / out of the digital zoom in / out until the user input for photographing is input on the display unit 154. Assume

The camera device 100 receives an image input through the camera 110 and detects a subject in operation S904. The camera apparatus 100 tracks the movement of the subject in real time (S906). The camera device 100 receives an image input through the camera 110, and the camera 110 generates an image frame using the image. In addition, the gesture recognition unit 120 may track the movement of the subject in real time by comparing the at least one previous frame with the current frame to detect the movement of the subject.

If the movement tracked in real time is a gesture UI, the controller 140 determines that the gesture UI is input from the camera 110. When the camera 110 of the camera device 100 receives the gesture UI from the subject (S908), the controller 140 determines whether the gesture UI is the zoom-in gesture (S910).

If the result of the determination in step S910 is a zoom-in gesture (S910: Yes), the controller 140 controls the camera apparatus 100 to perform a zoom-in operation by digital zoom (S912). Accordingly, the display unit 154 displays an image of the zoomed-in subject. Thereafter, the camera apparatus 100 may continuously receive a gesture UI from the subject by tracking the movement of the subject in real time (S906).

If the determination result in step S910 is not a zoom in gesture (S910: NO), the controller 140 determines whether the gesture UI received in step S908 is a zoom out gesture (S914). If the result of the determination in step S914 is a zoom out gesture (S914: Yes), the controller 140 controls the camera apparatus 100 to perform a zoom out operation by digital zooming (S916). Accordingly, the display unit 154 may display an image of a zoomed-out subject. Thereafter, the camera apparatus 100 may continuously receive a gesture UI from the subject by tracking the movement of the subject in real time (S906).

If the result of the determination in step S916 is not the zoom-out gesture (S916: No), the controller 140 determines whether the gesture UI received in step S906 is a capture gesture (S918). If the determination result of step S918 is a shooting gesture (S918: YES), the controller 140 controls the camera apparatus 100 to convert the digital zoom to analog zoom (920). For example, assuming that the camera is zoomed in 3x with the digital zoom, the controller 140 controls the camera 110 to switch to the zoomed in 3x with the analog zoom. Thereafter, the camera device 100 performs a photographing operation by analog zooming (S922).

In the present invention, the digital zoom can be switched to the analog zoom only after the photographing gesture is input. Accordingly, before the photographing operation is performed, the image frame displayed through the display unit 154 in steps S902 to S918 of FIG. 9 may be an image frame processed by digital zoom.

In addition, the image input through the lens of the camera 110 in steps S902 to S918 of FIG. 9 may be the same regardless of the input of the zoom in gesture or the zoom out gesture. That is, when the final magnification of the zoom in / out is determined, the camera device 100 may drive the optical lens of the camera 110 according to the final magnification.

FIG. 10 is a view illustrating a motion trajectory of a gesture UI recognized by a gesture recognition unit according to an embodiment of the present invention, and FIG. 11 is a movement of a gesture UI recognized by a gesture recognition unit according to another embodiment of the present invention. The figure shows the trajectory.

10 and 11 are diagrams illustrating movement trajectories of a subject according to the second gesture UI on a second gesture UI and an image frame which are continuously input from the subject.

Referring to FIG. 10, the subjects 1001: 1001-1, 1001-2, 1001-3, 1001-4, and 1001-5 may have the hands 1001-1, 1001-2, 1001-3, 1001-4, and 1001. The circular gesture 1010 is continuously input to the camera apparatus 100 by rotating -5) clockwise. The camera apparatus 100 adjusts the zoom-in magnification according to each of the center angles defined by the hands 1001-1, 1001-2, 1001-3, 1001-4, and 1001-5 taking the circular gesture 1010. Decide In FIG. 10, it is assumed that each center angle is determined based on the center point 1011 of the circular gesture 1010 and the starting point 1002 of the circular gesture 1010.

In FIG. 10, the subject 1001 continuously takes the circular gesture 1010, that is, the hands 1001-1, 1001-2, 1001-3, 1001-4, and 1001-5 continuously move the camera 110. ) Zoom in magnification is continuously changed.

When the hand 1001-2 reaches the first point P1, the controller 140 may control the camera apparatus 100 to zoom in by a magnification corresponding to the first center angle A1 °. Then, the hand 1001-3 reaches the second point P2. The controller 140 controls the camera apparatus 100 to zoom in by a magnification corresponding to the second center angle A2 °. When the hand 1001-4 reaches the third point P3, the controller 140 controls the camera device 100 to zoom in by a magnification corresponding to the third center angle A3 °. When the hand 1001-5 reaches the fourth point P4, the controller 140 controls the camera device 100 to zoom in by a magnification corresponding to the fourth center angle A4 °.

As described above, while the circular gesture 1010 is drawn in real time by the hands 1001-1, 1001-2, 1001-3, 1001-4, and 1001-5, the zoom-in magnification of the camera apparatus 100 is real time. Since the movement trajectory 1020 drawn by the hands 1001-1, 1001-2, 1001-3, 1001-4, and 1001-5 may not correspond to the circular gesture 1010.

As described above, when the circular gesture 1010 and the movement trace 1020 by the circular gesture 1010 do not coincide, the circular gesture 1010 may not be correctly recognized by the camera apparatus 100. Accordingly, in the present invention, as shown in FIG. 11, the movement trajectory of the gesture UI may be tracked after the input of the gesture UI from the subject 1100 is completed.

In FIG. 11, as in FIG. 10, the subjects 1101: 1101-1, 1101-2, 1101-3, 1101-4, and 1101-5 may have the hands 1101-1, 1101-2, 1101-3, and 1101-4. , 1101-5, rotates clockwise to input circular gesture 1110 into the camera device 100 continuously.

Also in FIG. 11, the camera 1110 by the subjects 1101 continuously making circular gestures 1110, that is, the hands 1101-1, 1101-2, 1101-3, 1101-4, and 1101-5 are continuously moved. ) Zoom in magnification is continuously changed. However, the controller 140 of FIG. 11 does not drive the lens of the camera 110 in real time and waits until the input of the circular gesture 1110 is completed.

When the input of the circular gesture 1110 is completed by the hands 1101-1, 1101-2, 1101-3, 1101-4, and 1101-5, the gesture recognition unit 120 performs the circular gesture 1110, that is, the gesture. The motion trajectory 1121 of the subject 1101 is estimated based on the point 1102 at which the UI input is completed. In this case, the motion trace 1121 may be based on a final magnification input by the circular gesture 1110. For example, the zoom-in magnification of the circular gesture 1110 drawn by the hands 1101-1, 1101-2, 1101-3, 1101-4, and 1101-5 of FIG. 11 is sequentially “2 times → 3 times”. → 4 times → 5 times → 6 times. The gesture recognition unit 120 may estimate the motion trajectory 1121 by the circular gesture 1110 as the motion trajectory corresponding to the zoom-in magnification "6 times." Accordingly, the controller 140 controls the lens of the camera 110 to zoom in 6 times.

FIG. 12A is an image displayed on a display unit of a camera device operating according to the method shown in FIG. 9, and FIG. 12B is a view showing an image input and photographed through a lens of the camera device. In the present embodiment, it is assumed that the lens of the camera 110 can analogly zoom in or zoom out of the subject 1200 through forward or backward motion.

Referring to FIG. 12A, an image including a subject is input to a lens of the camera 110, and the first image frame 1201 is displayed on the display unit 154. When a zoom-in gesture is input by the subject 1200, the controller 140 controls the camera apparatus 100 to perform a digital zoom-in operation of magnifying the first image frame 1201 in software. Accordingly, the display unit 154 displays the second image frame 1202 in which the first image frame 1201 is enlarged. In the present embodiment, for convenience of description, it is assumed that the second image frame 1202 is applied with a zoom-in magnification 2 times to the first image frame 1201.

In FIG. 12A, the subject 1200 inputs another zoom-in gesture to the camera device 100 after the second image frame 1202 is displayed. The controller 140 controls the camera apparatus 100 to perform the digital zoom-in operation of expanding the second image frame 1202 in software. Accordingly, the display unit 154 displays a third image frame 1203 in which the second image frame 1202 is enlarged. In the present embodiment, for convenience of description, it is assumed that the third image frame 1203 is applied with the zoom-in magnification 2 times to the second image frame 1202. That is, the third image frame 1203 is enlarged four times by the first image frame 1201.

When the photographing gesture is input from the subject 1200 after the third image frame 1203 is displayed, the camera apparatus 100 performs a photographing operation. In the present embodiment, the camera device 100 may perform the analog zoom-in operation only when a user input for photographing is input. Accordingly, the controller 140 controls the lens of the camera 110 to have the same magnification as the two digital zoom-ins.

Since the second image frame 1202 zooms the first image frame 1201 twice, and the third image frame 1203 zooms the second image frame 1202 twice, the third image frame 1203 is performed. ) Is obtained by zooming the first image frame 1201 four times. The controller 140 controls the camera 110 to allow the lens to be zoomed in 4 times with analog zoom. The camera apparatus 100 generates a fourth frame 1204 by performing a photographing operation while the lens is zoomed in 4 times. As described above, the camera apparatus 100 according to the present exemplary embodiment may prevent deterioration of image quality due to the digital zoom by photographing after converting the digital zoom to the analog zoom.

FIG. 12B illustrates actual images input through the lens of the camera 110 while the digital zoomed-in image frames 1201, 1202, and 1203 are displayed as shown in FIG. 12A. 12B, it can be seen that the actual image input through the lens is the same as the first image frame 1201 until the input of the photographing gesture. When a photographing gesture is input from the subject 1200, the camera apparatus 100 generates an fourth image frame 1204 by performing an analog zoom-in operation. As described above, the camera apparatus 100 according to the present embodiment may not perform the analog zoom in / out operation until the photographing gesture is input.

Digital zoom in / out is a zoom effect obtained by enlarging or reducing an image frame by digital processing. Digital zoom in / out can be implemented in software and can be processed in real time. On the other hand, analog zoom in / out can be obtained by physically moving a lens built in or external to the camera device 100. Accordingly, the analog zoom in / out of the camera apparatus 100 requires a time that the lens is physically moved by the zoom in / out magnification. On the other hand, the quality of the image frame is generally superior to that of digital zoom in / out of analog zoom in / out. Accordingly, in the present invention, the digital zoom in / out image frame is displayed on the display unit 154 in order to prevent processing delay as much as the time the lens of the camera 110 moves until the user input for photographing is input. Let's do it. In addition, when a user input for photographing is input, the camera apparatus 100 performs an analog zoom in / out operation by moving the lens of the camera 110 by the previous digital zoom in / out magnification.

13 is a diagram illustrating a continuous gesture UI and image processing according to a continuous gesture UI according to an embodiment of the present invention.

The continuous gesture UI shown in FIG. 13 is associated with zoom in / out. The subject 1300 may request the zoom in / out by folding the palms that are being opened, for example, by transforming them into a clenched form. When the gesture UI is input to the camera device 100, a zoom bar 1310 for zooming in / out may be displayed on the top of the image frames 1301, 1302, and 1303. The zoom bar 1310 may further include a number indicating the zoom in / out magnification and an identifier 1311 indicating the current magnification. In FIG. 13, the zoom in / out magnification is a number above the identifier 1311.

Since the first image frame 1301 corresponds to the original image which is not zoomed in / out, the number indicated by the identifier 1311 of the zoom bar 1310 is '1'. In the state where the zoom bar 1310 is displayed, the subject 1300 moves the identifier 1311 to the left or right by moving the hand left or right with the palm folded. In FIG. 13, the subject 1300 moves his fist from left to right. Accordingly, the identifier of the zoom bar 1310 is moved in the order of "1 → 4 → 7". The second image frame 1302 is an image in which the first image frame 1301 is zoomed in 4 times, and the third image frame 1303 is an image in which the first image frame 1301 is zoomed in 7 times. The subject 1300 may zoom in / out the subject 1300 at a desired magnification by moving the fist-holded hand left or right. In addition, when the subject 1300 is zoomed in / out at a desired magnification, the subject 1300 may request the camera apparatus 100 to stop or photograph the zoom in / out by spreading out a folded palm. In FIG. 13, the subject 1300 requests the camera device 100 to shoot by raising his or her fist. Accordingly, the camera device 100 may store the third image frame 1303 obtained after moving the lens to zoom in on the subject 1300 in the memory 130.

14A and 14B illustrate an image processing according to a continuous gesture UI and a continuous gesture UI according to another embodiment of the present invention.

The continuous gesture UI shown in FIGS. 14A and 14B is also associated with zoom in / out like FIG. 13. While the zoom bar 1410 is being displayed on the display unit 154, the subject 1400 can shake the wide open hand 1401 from side to side to input a desired zoom in / out magnification to the camera device 100. have. According to an exemplary embodiment, the hand 1401 may be displayed on the display unit 154 together with the first image frame 1421 and the zoom bar 1410. In the present embodiment, the hand 1401 is displayed together with the zoom bar 1410 in real time, so that the subject 1400 inputs a desired zoom in / out magnification.

As in FIG. 13, the zoom bar 1410 of FIGS. 14A and 14B may further include a number indicating a zoom in / out magnification and an identifier 1411 indicating a current magnification. In FIGS. 14A and 14B, the zoom in / out magnification is a number above the identifier 1411.

Since the first image frame 1421 corresponds to the original image that is not zoomed in / out, the number indicated by the identifier 1411 of the zoom bar 1410 is '1'. In the state where the zoom bar 1410 is displayed, the subject 1400 may point to any one of the numbers displayed on the zoom bar 1410 by shaking the hand 1401. Among the numbers of the zoom bar 1410, the number indicated by the hand 1401 is input to the camera device 100 at a magnification desired by the subject 1400.

In FIG. 14A, the hand 1401 points to '7' of the zoom bar 1410. That is, the subject 1400 is inputting '7 times' to the camera apparatus 100 at a zoom in magnification.

The camera 110 may generate a second image frame 1422 by zooming the subject 1400 7 times in the first image frame 1421, and the display unit 154 may generate the second image frame 1422. And the zoom bar 1411 can be displayed at the same time. Since the second image frame 1422 is an image zoomed in 7 times compared to the first image frame 1421, the identifier 1411 of the zoom bar 1411 is displayed to indicate '7'. As described above, the identifier 1411 of the zoom bar 1411 that indicates '1' moves to '7'.

Referring to the third image frame 1423 of FIG. 14B, the identifier 1411 of the zoom bar 1410 points to '7'. In FIG. 14B, it is assumed that the third image frame 1423 is zoomed in 7 times with respect to the first image frame 1421 which is the original image. In FIG. 14B, the hand 1401 points to '1' of the zoom bar 1410. That is, the object 1400 is inputting '1x' as the zoom-in magnification with respect to the third image frame 1423 which is zoomed in 7 times as compared with the first image frame 1421. The camera 110 may generate a fourth image frame 1424 obtained by zooming the subject 1400 in the third image frame 1423 by 1 times, and the display unit 154 may generate the fourth image frame 1424. And the zoom bar 1410 may be simultaneously displayed. Since the fourth image frame 1424 is an image 1/7 times zoomed in, that is, an image 7 times zoomed out, compared to the third image frame 1423, the identifier 1411 of the zoom bar 1410 indicates '1'. Is indicated to point.

It will be appreciated that the method for controlling the operation of the camera apparatus according to the embodiment of the present invention may be realized in the form of hardware, software, or a combination of hardware and software. Any such software may be, for example, volatile or nonvolatile storage, such as a storage device such as a ROM, whether or not removable or rewritable, or a memory such as, for example, a RAM, a memory chip, a device or an integrated circuit. Or, for example, CD or DVD, magnetic disk or magnetic tape and the like can be stored in a storage medium that is optically or magnetically recordable and simultaneously readable by a machine (eg computer). The method according to an embodiment of the present invention may be implemented by a computer or a portable terminal including a control unit and a memory, wherein the memory is a machine suitable for storing a program or programs including instructions for implementing embodiments of the present invention. It will be appreciated that this is an example of a storage medium that can be read. Accordingly, the present invention includes a program comprising code for implementing the apparatus or method described in any claim herein and a storage medium readable by a machine (such as a computer) storing such a program. In addition, such a program may be transferred electronically through any medium, such as a communication signal transmitted via a wired or wireless connection, and the present invention includes equivalents thereof as appropriate.

In addition, the camera device may receive and store the program from a program providing device connected by wire or wirelessly. The program providing device includes a memory for storing a program including instructions for causing the camera device to perform a preset content protection method, information necessary for the content protection method, and the like, to perform wired or wireless communication with the camera device. And a control unit for transmitting the program to the transceiver device automatically or at the request of the camera device.

In addition, there may be various embodiments or modifications of the present invention, and therefore, the scope of the present invention should be determined by the equivalents of the claims and the claims, rather than by the embodiments described.

100: camera device 110: camera
120: gesture recognition unit 130: memory
140: memory 152: user input unit
154: display unit

Claims (6)

In an electronic device,
camera,
Memory,
Display, and
At least one processor, wherein the at least one processor,
Through the display of the electronic device, to sequentially display a plurality of images sequentially acquired by the camera, the plurality of images including a subject;
Detecting a hand of a subject included in the plurality of images acquired through the camera and displayed on the display,
Detecting a change in the shape of the hand of the subject based on the hand of the subject detected in a first image and a second image among the plurality of images that are continuously acquired and displayed on the display And in response to detecting a change in the shape of the hand of the user, photographing a third image including the subject obtained through the camera and displayed on the display, and a third image including the photographed subject. The electronic device to store in the memory.
The method of claim 1,
The at least one processor is configured to detect a change in the shape of the hand of the user by comparing the first image and the second image with an image stored in the memory.
The method of claim 1,
The at least one processor is configured to temporarily store the first image and the second image in the memory.
In the method for controlling an electronic device,
Sequentially displaying, through the display of the electronic device, a plurality of images continuously acquired by the camera, the plurality of images including a subject;
Detecting a hand of a subject included in the plurality of images acquired through the camera and displayed on the display;
A change in the shape of the hand of the subject based on the hand of the subject detected in a first image and a second image among the plurality of images that are continuously acquired and displayed on the display; Detecting, and
In response to detecting the change of the hand shape of the user, photographing a third image including the subject obtained through the camera and displayed on the display, and storing the captured third image in a memory. A method of controlling an electronic device that includes.
The method of claim 4, wherein
Detecting the change of the user's hand shape,
And comparing the first image and the second image with an image stored in the memory to detect a change in the shape of the hand of the user.
The method of claim 5, further comprising temporarily storing the first image and the second image.

Images