JP2013110717A - Apparatus with camera function, program, and sneak photography prevention control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus with a camera function, a program, and a sneak photography prevention control method capable of suppressing sneak photography while keeping convenience in photography.SOLUTION: A mobile phone 1 comprises: a camera module 16 for photographing a subject; a photographing button 201 for photographing by the camera module 16, which is disposed on a display surface 11c; and a CPU 100. The CPU 100 varies the disposition of the photographing button 201 on the display surface 11c. The CPU 100 varies at least one of the position, the size, and the shape of the photographing button 201 as a control for varying the disposition.

Description

  The present invention is a digital camera, a digital video camera, a mobile phone, a PDA (Personal Digital Assistant), a device with a camera function such as a tablet PC (Tablet PC), and a program suitable for use with the device with the camera function and anti-voyeurism control It is about the method.

  In devices with a camera function such as a digital camera, prevention of voyeurism has been a challenge. Therefore, in order to prevent voyeurism, a device with a camera function that has a function of prohibiting photographing according to the inclination of the device with a camera function has been proposed (see Patent Document 1).

JP-A-2005-260823

  However, with the above-described voyeurism prevention function, it is possible that even photographing that is not aimed at voyeurism is prohibited. For example, there is a possibility that a person who has been recognized as a subject in advance cannot be photographed from a low angle.

  As described above, when proper photographing that is not voyeurism is prohibited, the convenience of photographing using a device with a camera function decreases.

  Therefore, an object of the present invention is to provide a device with a camera function, a program, and a voyeurism prevention control method that can suppress voyeurism while maintaining the convenience of photographing.

  A first aspect of the present invention relates to a device with a camera function. The device with a camera function according to this aspect includes a photographing unit that photographs a subject, an operation unit for photographing by the photographing unit arranged in a predetermined arrangement region, and an arrangement of the operation unit in the arrangement region. A control unit.

  In the device with a camera function according to this aspect, the control unit can change at least one of the position, size, and shape of the operation unit as control for changing the arrangement.

  In addition, the device with a camera function according to this aspect may further include an inclination detection unit that detects an inclination in the vertical direction of the imaging direction by the imaging unit. In this case, the control unit changes the arrangement of the operation unit based on the inclination.

  Further, in the device with a camera function according to this aspect, the control unit determines the position of the operation unit on the arrangement area when an inclination angle in which the photographing direction is inclined upward from a horizontal plane exceeds a first threshold. It can be changed to a position corresponding to the tilt angle.

  In the device with a camera function according to this aspect, the control unit may position the operation unit at an initial position on the arrangement area when the tilt angle does not exceed the first threshold.

  The device with a camera function according to this aspect may further include an output unit that outputs an operation sound when the operation unit is operated. In this case, the output unit outputs the operation sound when the operation unit is operated in a state where the shooting direction is tilted upward from a horizontal plane and the tilt angle exceeds a second threshold, and the tilt angle is the first And the operation sound when the operation unit is operated without exceeding the threshold value of 2.

  The device with a camera function according to this aspect may further include a storage unit that holds a predetermined condition for determining that the photographing unit is used for the normal photographing. In this case, the control unit suppresses the change in the arrangement of the operation unit when the predetermined condition is satisfied, compared to a case where the predetermined condition is not satisfied.

  The device with a camera function according to this aspect may further include a face detection unit that detects a human face from an image acquired from the imaging unit. In this case, the condition includes that the face is detected by the face detection unit.

  Furthermore, the device with a camera function according to this aspect further includes a display surface facing in a direction opposite to a direction in which the photographing unit faces when photographing by the photographing unit, and an input unit that receives an input to the display surface. obtain. In this case, the control unit displays an image corresponding to the operation unit on the display surface, and changes the arrangement of the image on the display surface.

  The second aspect of the present invention relates to a program. The program according to this aspect includes a function of providing an operation unit for photographing by the photographing unit in a predetermined arrangement area in a computer of a device with a camera function including a photographing unit for photographing a subject, and arrangement of the operation unit. And a function to be changed in the arrangement area.

  A third aspect of the present invention relates to a voyeurism prevention control method for a device with a camera function including a photographing unit that photographs a subject. The voyeurism prevention control method according to this aspect includes a step of arranging an operation unit for photographing by the photographing unit in a predetermined arrangement region, and a step of changing the arrangement of the operation unit in the arrangement region.

  According to the present invention, it is possible to provide a device with a camera function, a program, and a voyeurism prevention control method that can suppress voyeurism while maintaining the convenience of photographing.

  The effects and significance of the present invention will become more apparent from the following description of embodiments. However, the following embodiment is merely an example when the present invention is implemented, and the present invention is not limited to what is described in the following embodiment.

It is a figure which shows the external appearance structure of the mobile telephone based on Embodiment. It is a block diagram which shows the whole structure of the mobile telephone based on Embodiment. It is a flowchart which shows the process sequence for imaging | photography of a still image based on Embodiment. 4 is a table for explaining a shooting direction, a tilt angle of the shooting direction, and an arrangement of shooting buttons during execution of the processing shown in FIG. 3 according to the embodiment. 10 is a flowchart illustrating a processing procedure for capturing a still image according to Modification Example 1. 10 is a table for explaining transition of the arrangement of shooting buttons according to a modification example 1; 12 is a flowchart illustrating a processing procedure for capturing a still image according to a second modification. 10 is a flowchart illustrating a processing procedure for capturing a still image according to a third modification. 10 is a flowchart illustrating a processing procedure for photographing according to Modification Example 4 and Modification Example 5. 16 is a flowchart illustrating a processing procedure for capturing a still image according to Modification Example 6. It is a figure which shows the example which the position and magnitude | size of the imaging | photography button displayed on a display surface change according to an inclination angle based on the other example of a change. It is a table | surface for demonstrating the transition of the arrangement | positioning of an imaging | photography button based on the other example of a change. It is a flowchart which shows the process sequence for imaging | photography of a still image based on the other example of a change. It is a figure for demonstrating the transition of the arrangement | positioning of the imaging | photography button when the imaging | photography button is a hard key based on the other example of a change.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIGS. 1A and 1B are diagrams showing an external configuration of the mobile phone 1. 1A and 1B are a front view and a side view, respectively.

  The mobile phone 1 includes a cabinet 10 having a rectangular shape and a small thickness. A touch panel is arranged on the front side of the cabinet 10. The touch panel includes a display 11 and a touch sensor 12 superimposed on the display 11.

  The display 11 is a liquid crystal display, and includes a liquid crystal panel 11a, which will be described later, and a panel backlight 11b disposed on the back side of the liquid crystal panel 11a (see FIG. 2). The liquid crystal panel 11a has a display surface 11c for displaying an image. The panel backlight 11b illuminates the liquid crystal panel 11a.

  The display 11 is not limited to a liquid crystal display, and may be another display device such as an organic EL display.

  The touch sensor 12 is disposed on the display surface 11c. The touch sensor 12 detects an input position with respect to the display surface 11c. The touch sensor 12 is formed in a transparent sheet shape, and the display surface 11 c can be seen through the touch sensor 12.

  The touch sensor 12 is a capacitive touch sensor and includes a first transparent electrode, a second transparent electrode, and a cover arranged in a matrix. The touch sensor 12 detects a position on the display surface 11c touched by the user as an input position by detecting a change in capacitance between the first and second transparent electrodes, and a position signal corresponding to the input position. Is output to the CPU 100 described later. Note that touching the display surface 11c actually means touching the cover.

  The user can perform various operations such as tapping, sliding, and flicking by touching the display surface 11c with a contact member (hereinafter simply referred to as “finger”) such as a finger or a pen.

  The touch sensor 12 is not limited to the capacitive touch sensor 12, but may be an ultrasonic sensor, a pressure sensitive sensor, a resistive film sensor, a light detection sensor, or the like.

  Below the touch panel (a negative direction of the Y axis), a key operation unit 13 including a setting key 13a, a home key 13b, and a back key 13c is provided. The setting key 13a is a key for displaying a setting screen for mainly performing various settings on the display surface 11c. The home key 13b is a key for mainly displaying the home screen on the display surface 11c. The back key 13c is a key for mainly returning the display state of the screen on the display surface 11c to the state one step before.

  On the front side of the cabinet 10, a microphone (hereinafter referred to as “microphone”) 14 is disposed at the lower part, and a speaker 15 is disposed at the upper part. The user can talk by listening to the sound from the speaker 15 and uttering the sound to the microphone 14.

  Further, on the back side of the cabinet 10, a speaker 15 a that outputs sound with a volume that can be heard by people around it is disposed. For example, a shutter sound or the like for notifying the surroundings that shooting by a camera module 16 (described later) is performed is output from the speaker 15a.

  A camera module 16 is disposed on the back side of the cabinet 10. A lens window is arranged on the rear surface of the cabinet 10, and an image of the subject in the shooting direction V (see the arrow in FIG. 1B), that is, the direction in which the lens window faces is taken into the camera module 16 from the lens window. It is. The display surface 11c is arranged to face the direction opposite to the shooting direction V.

  The camera module 16 includes an image sensor such as a CCD or CMOS sensor that captures an image of light incident from the lens window. The camera module 16 digitizes the imaging signal output from the imaging device, performs various corrections such as gamma correction on the digital signal, and outputs the digital signal to a video encoder described later.

  FIG. 2 is a block diagram showing the overall configuration of the mobile phone 1. The mobile phone 1 includes a CPU 100, a memory 101, an image processing circuit 102, a key input circuit 103, an audio encoder 104, an audio decoder 105, a video encoder 106, a communication module 107, an acceleration sensor 108, and a timer 109 in addition to the above-described components. Prepare.

  The image processing circuit 102 generates an image to be displayed on the display 11 in accordance with a control signal input from the CPU 100, and stores the image data in a VRAM 102a provided in the image processing circuit 102.

  The image processing circuit 102 outputs an image signal including image data stored in the VRAM 102 a to the display 11. Further, the image processing circuit 102 outputs a control signal for controlling the display 11 and turns on or off the panel backlight 11b of the display 11. The light emitted from the panel backlight 11b is modulated by the liquid crystal panel 11a based on the image signal, whereby an image is displayed on the display surface 11c of the display 11.

  The key input circuit 103 outputs a signal to the CPU 100 in response to pressing of the keys 13 a to 13 c constituting the key operation unit 13.

  The audio encoder 104 converts the electrical signal generated by the microphone 14 based on the collected audio into a digital audio signal and outputs the digital audio signal to the CPU 100.

  The audio decoder 105 performs decoding processing and D / A conversion on the audio signal from the CPU 100, and outputs the converted analog audio signal to the speakers 15 and 15a.

  The video encoder 106 encodes the signal from the camera module 16 and outputs it to the CPU 100.

  The communication module 107 includes an antenna that transmits and receives radio waves for calls and communication. The communication module 107 converts a call or communication signal input from the CPU 100 into a radio signal, and transmits the converted radio signal to a communication destination such as a base station or another communication device via an antenna. . In addition, the communication module 107 converts a radio signal received via the antenna into a signal in a format that can be used by the CPU 100, and outputs the converted signal to the CPU 100.

  The acceleration sensor 108 detects the acceleration related to the mobile phone 1. The acceleration sensor 108 is a three-axis acceleration sensor, and detects acceleration generated in the three directions of the X-axis direction, the Y-axis direction, and the Z-axis direction in FIG. The acceleration sensor 108 outputs an acceleration signal corresponding to the detected acceleration to the CPU 100.

  When the mobile phone 1 is stationary, the acceleration of gravity applied to the mobile phone 1 is detected by the acceleration sensor 108. The CPU 100 detects the above-described shooting direction V based on the gravitational acceleration.

  The memory 101 includes a ROM and a RAM. The memory 101 stores a control program for giving a control function to the CPU 100 and various application programs (hereinafter referred to as “applications”). For example, the memory 101 stores various applications such as a call, still image shooting, and moving image shooting.

  The memory 101 is also used as a working memory that stores various data that are temporarily used or generated when an application is executed.

  The memory 101 stores a captured still image. Specifically, the memory 101 stores a still image based on an image acquired from the camera module 16 (hereinafter referred to as “captured image”) in a predetermined folder in a file system constructed on the memory 101. To remember.

  The CPU 100 executes various applications by controlling each component such as the camera module 16, the microphone 14, the communication module 107, the display 11, the speakers 15, 15a, and the like according to the control program.

  In the case of shooting a still image, the CPU 100 executes an application for shooting a still image. At the time of execution, the CPU 100 acquires a captured image from the camera module 16 and displays it on the display surface 11c as needed. Here, the operation for shooting is an operation of pressing (touching) a shooting button (described later) displayed on the display surface 11c. When an operation for shooting is performed, the CPU 100 acquires a captured image when the operation is performed as a still image, and stores the still image in the predetermined folder.

  Note that an application for taking a still image is a memory other than the memory 101 such as an external storage medium (such as an SD card) or a storage device connected via a wired or wireless communication network. You may be comprised so that it can memorize | store in a part.

  Now, the cellular phone 1 has a function of changing the arrangement of the shooting buttons when shooting a still image. Hereinafter, a process for capturing a still image including a process related to a change in the arrangement of the shooting button 201 will be described in detail.

  FIG. 3 is a flowchart illustrating a processing procedure for capturing a still image. When the user performs a predetermined operation for starting an application for taking a still image (for example, an operation of tapping an icon corresponding to the application), the process illustrated in FIG. 3 is executed.

  First, the CPU 100 activates the camera module 16 (S101), and thereafter updates and displays the above-described captured image as needed on the display surface 11c. Next, the CPU 100 performs initial setting and initial display of the shooting button 201 (S102).

  Here, the photographing button 201 is a button for accepting an operation for photographing a still image displayed as an image on the display surface 11c. When the shooting button 201 is displayed on the display surface 11c, the arrangement of the shooting button 201 is notified.

  FIG. 4 is a table for explaining the shooting direction V, the tilt angle θ of the shooting direction V with respect to the horizontal plane, and the arrangement of the shooting buttons 201 during execution of the processing shown in FIG.

  In FIG. 4, the alternate long and short dash line indicates the direction of the horizontal plane. The inclination angle θ can take a value in the range of −90 degrees to +90 degrees. θ = 0 ° indicates that the shooting direction V faces the horizontal direction. θ = + 90 ° indicates that the shooting direction V is tilted right above. θ = −90 ° indicates that the shooting direction V is tilted directly below.

  Actually, a photographed image is displayed below the photographing button 201 on the display surface 11c, but in FIG. 4, the photographed image is not shown for convenience. The same applies to FIGS. 6, 11, and 12.

  Referring to step S102 of FIG. 3 and FIG. 4, the CPU 100 displays the photographing button 201 at the lower end position of the display surface 11c as shown in the left column (θ = 0 °) of FIG. In addition to the initial setting, the photographing button 201 is displayed at the lower end position. The position of the lower end of the display surface 11c is the initial position of the shooting button 201. The photographing button 201 is displayed so as to be superimposed on the photographed image displayed on the display surface 11c.

  Next, the CPU 100 moves the shooting button 201 on the display surface 11c based on the shooting direction in the vertical direction. Specifically, the CPU 100 acquires the tilt angle θ described above based on the shooting direction V detected using the acceleration sensor 108 (S103), and moves the shooting button 201 to a position corresponding to the tilt angle θ (S104). ). At this time, the CPU 100 maintains a state where an operation for the shooting button 201 can be accepted even after the shooting button 201 is moved.

  In step S104, the display position of the shooting button 201 is set as follows. When θ <0, the position of the shooting button 201 is set to the initial position. When 0 ≦ θ <90 °, the position to which the photographing button 201 is moved is set to a position (Y-axis positive direction) above the initial position by a distance substantially proportional to the inclination angle θ with respect to the initial position. . For example, as shown in the center column in the table of FIG. 4, when the tilt angle θ = 45 ° is acquired by the tilt of the shooting direction V with respect to the horizontal plane, the display position of the shooting button 201 is displayed on the display screen. 11c is set at the approximate center. When θ = 90 °, the display position of the photographing button 201 is set to the position of the upper end of the display surface 11c (see the position of the photographing button 201 in the right column in FIG. 4).

In step S105, the CPU 100 determines whether or not an operation for photographing has been performed. When the user presses the shooting button 201 (S105: YES), the CPU 100 captures a shooting sound (operation sound) such as a shutter sound for notifying the surrounding that shooting is being performed.
Is reproduced from the speaker 15a (S106). Further, the CPU 100 acquires a captured image when the shooting button 201 is pressed as a still image and stores it in the memory 101.

  When storing a still image (S107), the CPU 100 inquires of the user whether or not it is necessary to store a still image. When an operation for permitting the storage of the captured image is performed, the CPU 100 stores the still image as described above. When an operation that does not permit storage of a captured image is performed, the CPU 100 discards the still image that was the target of storage.

  After execution of the process of step S107 or when an operation for photographing is not performed (S105: NO), the CPU 100 proceeds to the process of S108. In step S <b> 108, the CPU 100 determines whether or not an operation for ending an application for taking a still image has been performed. When there is no operation for ending (S108: NO), the CPU 100 returns to the process of step S103. While the operation for termination is not performed (S108: YES), the processing (S103, S104) for moving the photographing button 201 based on the tilt angle θ is repeatedly executed.

  When the operation for ending is performed (S108: YES), the CPU 100 stops the operation for capturing the captured image from the camera module 16 (S109), and ends the application.

  In this way, while an operation for photographing is awaited, the CPU 100 displays the photographing button 201 at a position corresponding to the tilt angle θ.

  As described above, according to the present embodiment, the CPU 100 changes the arrangement of the photographing buttons 201 displayed on the display surface 11c while waiting for an operation for photographing. A person who attempts voyeurism cannot easily view the display surface 11c continuously. For this reason, it is difficult for a person who attempts voyeurism to specify the position of the shooting button 201 and to perform an operation for shooting. That is, according to the present embodiment, voyeurism is suppressed.

  On the other hand, when the user performs normal shooting, that is, shooting not intended for voyeurism, the shooting button 201 is displayed on the display surface 11c facing the direction opposite to the shooting direction V, and the user presses the shooting button displayed in this way. 201 can be visually recognized. Therefore, the user can easily specify the display position of the shooting button 201 and can easily perform an operation for shooting by pressing the shooting button 201. That is, the convenience of shooting is maintained.

  Therefore, it is possible to suppress voyeurism while maintaining the convenience of shooting that is not intended for voyeurism.

  Furthermore, according to the configuration of the present embodiment, the shooting button 201 is arranged farther from the initial position as the shooting direction V tilts upward. For example, when a person who attempts voyeurism tries to voyeurize a woman's skirt, the photographing direction V is tilted upward, and the photographing button 201 is displayed at a position away from the initial position. As described above, when the mobile phone 1 is in a state where the possibility of the voyeurism is high, the photographing button 201 is separated from the normal position (initial position), so that the voyeurism is further suppressed.

  Further, for example, a person who attempts to voyeurize the inside of the skirt as described above may use the mobile phone 1 in a state where the shooting direction V is inclined upward. At this time, since the shooting button 201 is displayed on the display surface 11c tilted downward, a person trying to voyeur cannot visually recognize the shooting button 201. Therefore, it is difficult to press the shooting button 201, and voyeurism is further suppressed.

  In addition, when the shooting button 201 is configured to move based on the inclination of the shooting direction V, it is difficult for a person who attempts voyeurism to keep the inclination of the shooting direction V constant when attempting to voyeurize. The button 201 moves frequently. Therefore, it becomes more difficult for a person who attempts shooting to press the shooting button 201, and the shooting suppression effect is enhanced.

  Note that the movement mode of the shooting button 201 in the process for moving the shooting button 201 (S104) is merely an example. A configuration in which the shooting button 201 is moved not only in the vertical direction (Y-axis direction) on the display surface 11c based on the tilt angle θ in the shooting direction V but also in the horizontal direction (X-axis direction) or diagonally. A configuration in which the shooting button 201 is moved in various modes such as a configuration in which the shooting button 201 is moved along a curve may be employed.

<Modification 1>
FIG. 5 is a flowchart illustrating a processing procedure for taking a still image according to the first modification.

  In the flowchart of FIG. 5, the processes in steps S103 and S104 in the flowchart shown in FIG. 3 are replaced with the processes in steps S111 and S112.

  FIG. 6 is a table for explaining the change of the position of the photographing button 201 with the passage of time according to this modification. The left, center, and right columns in the table of FIG. 6 are the shooting buttons on the display surface 11c immediately after the shooting button 201 is initially displayed (after 0 seconds), after T seconds, and after 2 T seconds, respectively. A display position 201 is shown.

  As in the above embodiment, the CPU 100 displays the shooting button 201 at the initial position in step S102 as shown in the left column of the table of FIG. In this modified example, in step S102, the CPU 100 starts the timer 109 for timing.

  In step S111, the CPU 100 determines whether or not the time to be measured has passed a predetermined period (T seconds, for example, about several seconds to several tens of seconds). When the predetermined period T seconds has not elapsed (S111: NO), step S112 in the subsequent stage is skipped and the process proceeds to step S105. For example, immediately after the initial display of the above-described shooting button 201 (before T seconds have elapsed), NO is determined in step S111.

  If the time has elapsed for a predetermined period T seconds or more (S111: YES), the CPU 100 irregularly moves the photographing button 201, resets the timer 109, and restarts counting from 0 seconds in step S112. Thereby, the process of step S112 is performed every time T seconds elapse.

  Note that irregularly moving the shooting button 201 means that the CPU 100 moves the shooting button 201 to a position where the user cannot easily predict it. A position that cannot be easily predicted by the user is set by the CPU 100 based on a random number, a pseudo-random number, an array of coordinates that define a rule for moving the photographing button 201, or the like.

  Note that when the position of the shooting button 201 is changed as described above, the distance that the shooting button 201 is moved at a time may be set large so that it is difficult to specify the position of the shooting button 201. In addition, the movement width may be set small so that the shooting button 201 can be easily tracked by visual recognition.

  Further, the predetermined period T is set to be small (for example, about several hundred milliseconds) so that the photographing button 201 appears to move continuously, and the distance by which the photographing button 201 is moved at a time is small (for example, several Pixel to about several hundred pixels).

  As described above, according to the configuration of the present modification example, the CPU 100 irregularly moves the shooting button 201 on the display surface 11c, which is an area where the shooting button 201 is provided, while waiting for an operation for shooting. Specifically, the CPU 100 irregularly changes the position of the photographing button 201 every predetermined period T seconds. As described above, a person who attempts voyeurism cannot identify the position of the shooting button 201 that moves irregularly by visual recognition. For this reason, it is difficult for a person who attempts voyeurism to specify the position of the shooting button 201 and to perform an operation for shooting. That is, voyeurism is suppressed.

  On the other hand, as in the above-described embodiment, when the user performs shooting that is not intended for voyeurism, the user can easily specify the display position of the shooting button 201 and can easily perform shooting by pressing the shooting button 201. Can be operated. That is, the convenience of shooting is maintained.

  Therefore, it is possible to suppress voyeurism while maintaining the convenience of shooting that is not intended for voyeurism.

<Modification 2>
FIG. 7 is a flowchart illustrating a processing procedure for capturing a still image according to the second modification.

  In the flowchart of FIG. 7, the determination process of step S <b> 121 is inserted before the process of step S <b> 103 in the flowchart of FIG. 3, and the process of step S <b> 122 that is executed following the determination process of step S <b> 121 is added.

  After executing the process of step S102 or S108, the CPU 100 executes the determination process of step S121. The determination condition is a condition for determining that the camera module 16 is used for normal shooting that does not aim for voyeurism. This determination condition is held in the memory 101 in advance together with an application for taking a still image, for example.

  In step S121, a determination process for determining whether or not to stop moving the photographing button 201 (S104) is executed. Specifically, the determination condition relating to the determination process is a condition as to whether or not a human face is detected in a captured image acquired from the camera module 16 as needed.

  Below, the content of the determination process of step S121 is demonstrated using an example.

  When the mobile phone 1 is pointed at a person's face, the photographed image includes an image of the person's face. When the CPU 100 detects a human face from the captured image (S121: YES), the CPU 100 returns the position of the shooting button 201 to the initial position (S122). Then, the process proceeds to step S105. In addition, when the photographing button 201 is at the initial position, it is maintained at the initial position.

  On the other hand, when the photographed image does not include an image of a person's face, the CPU 100 does not detect the person's face from such a photographed image (S121: NO). In this case, the CPU 100 proceeds to the process of step S103. For example, when the user photographs a person from below or behind, or when photographing a building, the photographed image does not include an image of the person's face, and therefore NO is determined in step S121.

  The process (S121) for detecting the person's face described above is executed as follows, for example.

  The CPU 100 extracts a partial image mainly composed of skin color from the photographed image, and further, in the extracted partial image, facial features such as eyes, nose, mouth, wrinkles, etc., color, saturation, etc. of the partial image. Detect based on the distribution of. When the CPU 100 detects that the partial image includes a facial feature portion at a certain rate, the CPU 100 determines that a human face image is detected from the captured image (S121: YES). The CPU 100 determines that the face of a person is not detected from the photographed image when the facial feature portion is not detected at a constant rate from the photographed image (S121: NO).

  As described above, according to the configuration of the present modification example, the CPU 100 suppresses the change of the shooting button 201, that is, stops moving when a predetermined determination condition is satisfied, that is, when a human face is detected in the shot image. . Further, the CPU 100 returns the position of the photographing button 201 to the initial position.

  For example, when shooting is performed such that a person's face is detected from a shot image, the shooting is highly likely to be shooting that is not intended for voyeurism. According to the configuration of this modified example, the movement of the shooting button 201 is stopped in a scene where it is considered that there is a high probability that normal shooting not intended for voyeurism is performed. Thus, a user who performs normal shooting can easily perform an operation for shooting by visually recognizing the shooting button 201 displayed on the display surface 11c.

  Even if shooting is performed with the mobile phone 1 with the shooting direction V tilted upward, when the user is shooting a subject including a person's face, the shooting button 201 is stationary on the display surface 11c. Is displayed.

  Therefore, the convenience of shooting is kept good when there is a high probability that shooting without the purpose of voyeurism is being performed.

  Further, in the present modification example, when a human face is detected in the photographed image, the photographing button 201 is displayed at the initial position as described above (S122). The user can visually recognize that the shooting button 201 is in the same position as normal, and thus the convenience of shooting is maintained.

<Modification 3>
The configuration related to face detection in Modification 2 can be applied to Modification 1 (see FIG. 5) as described below.

  FIG. 8 is a flowchart illustrating a processing procedure for capturing a still image according to the third modification.

  In the flowchart of FIG. 8, the determination process of step S <b> 121 is inserted before the process of step S <b> 111 in the flowchart of FIG. 5, and the process of step S <b> 122 that is executed following the determination process of step S <b> 121 is added.

  Note that the processes in steps S121 and S122 shown in FIG. 8 are the same as the processes in steps S121 and S122 shown in FIG.

After the process in step S102 or S108, the CPU 100 executes a determination process related to face detection in step S121. When a human face is detected from the captured image (S121)
: YES), the CPU 100 moves the position of the shooting button 201 to the initial position (S122), and proceeds to the process of step S105, as in the second modification. When the face of a person is not detected from the captured image (S121: NO), the CPU 100 proceeds to the process of step S111.

  As described above, according to the configuration of the present modification example, when a human face is detected from a captured image, a change in the arrangement of the shooting button 201 is suppressed. Specifically, the irregular movement of the shooting button 201 is stopped. Therefore, when the user shoots a subject including a human face, the user can easily perform an operation for shooting by visually recognizing the shooting button 201 displayed on the display surface 11c.

  Therefore, the convenience of shooting is kept good when there is a high probability that shooting without the purpose of voyeurism is being performed.

<Modification 4>
In the fourth modification, it is determined that there is a high probability that shooting not intended for voyeurism is performed based on the shooting direction V being included in a predetermined range including the horizontal plane direction, and the change in the arrangement of the shooting button 201 is stopped. The structure to do is taken.

  FIG. 9A is a flowchart illustrating a processing procedure for capturing a still image according to the fourth modification. In the flowchart of FIG. 9A, the determination process of step S131 is inserted before the step S104 in the flowchart of FIG. 3, and the process of step S132 that is executed following the determination process of step S131 is added. In the flowchart of FIG. 9A, processes other than steps S104, S131, and S132 are not shown.

  Note that the process of step S132 is the same as the process of step S122 shown in the flowchart of FIG.

  In step S131, the CPU 100 determines whether or not the shooting direction V is included in a predetermined range including the horizontal plane direction. Specifically, the CPU 100 determines whether or not the tilt angle θ in the shooting direction V detected in step S103 is equal to or smaller than a predetermined threshold θ1 (for example, 30 °), that is, θ ≦ θ1.

  Here, the threshold value θ1 is set to a value that is about the upper limit of the assumed inclination angle θ when a normal user performs shooting in a normal usage mode. The threshold value θ1 can be set to a value within a range of about 10 ° to 60 °, for example. The threshold value θ1 may be set smaller with priority given to suppressing voyeurism. In addition, the threshold value θ1 may be set larger in order to prioritize shooting convenience.

  When the tilt angle θ is equal to or smaller than the threshold θ1 (θ ≦ θ1, S131: YES), the CPU 100 returns the position of the photographing button 201 to the initial position (S132), and further proceeds to the process of step S105.

  When the tilt angle θ exceeds the threshold θ1 (θ> θ1, S131: YES), the CPU 100 moves the shooting button 201 according to the acquired tilt angle θ (S104), and further proceeds to the process of step S105.

  As described above, in the configuration of the present modification example, the shooting button 201 is maintained at the initial position unless the shooting direction V is tilted upward until the tilt angle θ exceeds the threshold θ1.

  As described above, according to the configuration of the present modified example, the CPU 100 determines that the predetermined button is satisfied, that is, if the tilt angle θ in which the shooting direction V is inclined upward from the horizontal plane exceeds the threshold θ1, the CPU 100 The position 201 is changed to a position corresponding to the tilt angle θ. When the inclination angle θ does not exceed the threshold θ1, the CPU 100 stops the movement of the photographing button 201 and positions the photographing button 201 at the initial position.

  For example, when a person who attempts voyeurism tries to voyeurize the inside of a woman's skirt, the photographing button 201 moves when photographing is performed in a state in which the photographing direction V is tilted upward, which may cause voyeurism. . On the other hand, when there is no concern about voyeurism as compared with a state in which the shooting direction V is tilted upward, the movement of the shooting button 201 is stopped.

  Therefore, the convenience of shooting is kept good when the possibility of voyeurism is low.

<Modification 5>
The configuration for stopping the movement of the photographing button 201 based on the photographing direction V in the modification example 4 can be applied to the modification example 1 (see FIG. 5) as described below.

  FIG. 9B is a flowchart illustrating a processing procedure for taking a still image according to the fifth modification. In the flowchart of FIG. 9B, the process of step S133 and the determination process of step S131 are inserted in the preceding stage of step S111 in the flowchart of FIG. 5, and further, the process of step S132 executed following the determination process of step S131 is performed. Processing is added. In addition, in the flowchart of FIG.9 (b), illustration of processes other than step S111, S112, S131-S133 is abbreviate | omitted.

  Note that the processes of steps S131 and S132 are the same as the processes of steps S131 and S132 shown in the flowchart of FIG. Further, the process of step S133 is the same as the process of step S103 shown in the flowchart of FIG. 3 according to the embodiment.

  In step S133, the CPU 100 acquires the tilt angle θ (S133), and proceeds to the determination process in step S131.

  Similar to the fourth modification, in step S131, the CPU 100 determines whether or not the shooting direction V is included in a predetermined range including the horizontal plane direction, that is, whether θ ≦ θ1.

  If θ ≦ θ1 (S131: YES), the position of the shooting button 201 is returned to the initial position (S132), and the process proceeds to step S105.

  When θ> θ1 (S131: NO), the CPU 100 irregularly moves the photographing button 201 every time a predetermined time (T seconds) elapses (S111, S112), and further proceeds to the process of step S105.

  As described above, according to the configuration of the present modified example, as in the modified example 5, the convenience of shooting is maintained in a case where there is no high concern about voyeurism.

<Modification 6>
FIG. 10 is a flowchart illustrating a processing procedure for capturing a still image according to the sixth modification. In the flowchart of FIG. 10, the process of step S106 in the flowchart of FIG. 3 according to the above embodiment is replaced with the processes of steps S141 to S144. In the flowchart of FIG. 10, illustrations other than steps S107 and S141 to S144 are omitted.

  Note that the processes in steps S141 and S143 are the same as the processes in steps S103 and S106 shown in the flowchart of FIG.

  After the process of step S105, the CPU 100 acquires the tilt angle θ in the shooting direction V (S141), and proceeds to the process of step S142.

  In step S142, the CPU 100 determines whether or not the inclination angle θ is equal to or smaller than a predetermined threshold θ2 (for example, θ2 = θ1, or about 10 ° to 45 °), that is, θ ≦ θ2.

  When θ ≦ θ2 is satisfied (S142: YES), the CPU 100 reproduces normal shooting sound for notifying the surroundings that shooting is being performed from the speaker 15a (S143), and proceeds to the process of step S107. Here, the “normal shooting sound” refers to a shooting sound similar to the shooting sound reproduced in step S103 of FIG. 3, and is distinguished from a shooting sound different from normal (see S144) described below.

  When θ ≦ θ2 is not satisfied (S142: NO), the CPU 100 reproduces a shooting sound different from normal from the speaker 15a (S144), and proceeds to the process of step S107. Here, the shooting sound different from the normal sound is a sound for more reliably notifying the surrounding that shooting is currently being performed. The shooting sound different from normal is, for example, a shooting sound whose volume is increased in the above normal shooting sound, a warning sound for drawing attention from the surroundings, an announcement sound (for example, “I took a picture”), and the like. .

  As described above, according to the configuration of the modified example, the CPU 100 captures the shooting sound when the shooting button 201 is operated in a state where the tilt angle θ exceeds the threshold θ2, and the shooting button when the tilt angle θ does not exceed the threshold θ2. The sound is different from that obtained when 201 is operated. With the above configuration, it is possible to more reliably notify the periphery of the mobile phone 1 that the current shooting is being performed.

  By taking such a configuration, when shooting is performed in a state where the shooting direction V is tilted upward, such as voyeurism such as taking a voyeur inside a woman's skirt, Different shooting sounds are played. Reproduction of shooting sound that is different from normal one draws the attention of the surroundings strongly. For this reason, voyeurism is effectively suppressed.

  Note that the configuration of this modified example is also applicable to the modified examples 1 to 5.

<Others>
While the embodiments and modifications of the present invention have been described above, the present invention is not limited to the above-described embodiments and the like, and the embodiments of the present invention are variously modified in addition to the above. Is possible.

In the above embodiment and Modifications 1 to 6, the configuration in which the shooting button 201 is moved is adopted. However, the size, shape, etc. of the shooting button 201 are not limited to the position of the shooting button 201. Such various arrangements can be changed. For example, a configuration in which the arrangement of the photographing button 201 is changed so as to change the size of the photographing button 201 can be adopted in the above embodiment. For example, as shown in FIG. 11, on the display surface 11c, which is the area where the shooting button 201 is arranged, the shooting button 201 is moved and reduced according to the angle (tilt angle θ) in which the shooting direction V tilts upward from the horizontal plane. A configuration may be adopted. Shooting button 201
A configuration may be adopted in which the size is changed but not moved. In this case, as the angle of inclination increases, the size of the shooting button 201 is reduced, so that it is difficult to press the shooting button 201 without viewing.

  The process for changing the arrangement of the shooting button 201 described in the embodiment and the first to sixth modifications may be executed only when the shooting sound is set not to be reproduced from the speaker 15a. In this case, the notification to the surroundings that shooting by the mobile phone 1 is being performed is made by the shooting sound when the shooting sound is set to be played back, and the shooting sound is set not to be played back. If there is, the change in the arrangement of the shooting button 201 is suppressed.

  Further, in the modification examples 2 to 5, when the shooting sound is set to be played back from the speaker 15a, if the predetermined determination condition is not satisfied (S131: NO, S21: NO), the shooting sound is played back. When a predetermined determination condition is satisfied (S131: YES, S21: YES), it can be configured not to reproduce the shooting sound.

  In the modification examples 2 to 5, when the predetermined determination condition (S121, S131) is satisfied, the change in the arrangement of the photographing button 201 is suppressed and the arrangement returns to the initial state. However, a configuration in which the arrangement is not returned to the initial state may be adopted. For example, in the flowcharts according to the second and third modification examples (FIGS. 7 and 8), a configuration in which step S122 is deleted may be employed. In such a configuration, when the change in the arrangement of the shooting button 201 is suppressed (S121: YES), the arrangement of the shooting button 201 is maintained in the state when the change is suppressed. That is, the position of the photographing button 201 is maintained at the position when the movement is stopped. Similarly, in the flowcharts according to the modification examples 4 and 5 (FIGS. 9A and 9B), a configuration in which step S132 is deleted may be employed.

  In the embodiment and the first to sixth modifications, the photographing button 201 is always displayed as an image on the display surface 11c. However, the shooting button 201 need not always be displayed on the display surface 11c as an image such as a so-called button or icon.

  For example, instead of the process of step S102 in the flowchart of FIG. 3 according to the above-described embodiment, an image display area in which a captured image is displayed can be configured as an area for receiving an operation for imaging. In this configuration, the shooting button 201 is invisible in the initial setting, and the entire image display area is the shooting button 201. On the image display area, the image of the shooting button 201 is not displayed, but the captured image is displayed. Further, in step S104 in this configuration, when the inclination angle θ is equal to or larger than a predetermined threshold (for example, 30 °), a configuration in which an image of the shooting button 201 similar to that described in the above embodiment is displayed is adopted. It is done. For example, as shown in the display of FIG. 12, when θ ≦ θ1 (left column), an operation (tap) on the image display area 202 on the display surface 11c is accepted as an operation for photographing, and θ> θ1. In some cases (center and right columns), the position of the shooting button 201 changes as described with reference to FIG.

  In addition, when the shooting direction V of the mobile phone 1 is substantially upward (tilt angle θ≈90 °), the shooting button 201 is erased on the display surface 11c so that an operation on the shooting button 201 for shooting is not accepted. A configuration may be employed.

The configurations of Modification Example 2 and Modification Example 4 can be combined with each other. For example, instead of the determination processing in step S131 shown in FIG. 9A, it is determined whether a face is detected from the captured image or whether θ ≦ θ1 as shown in the flowchart of FIG. The process (S151) to perform may be performed. Similarly, the configurations of the modified example 3 and the modified rationale 5 can be combined with each other. For example, instead of the determination process in step S131 shown in FIG. 9B, it is determined whether a face is detected from the captured image or θ ≦ θ1 as shown in the flowchart of FIG. The process (S151) to perform may be performed. As described above, the determination condition for suppressing the change in the arrangement of the shooting button 201 can be configured by combining various conditions with logical operators such as AND, OR, and NOT. Each condition that constitutes the judgment condition is appropriately selected from various conditions such as a condition for detecting a high probability of shooting that is not intended for voyeurism and a condition for detecting the possibility of voyeurism being low. Good.

  In the above embodiment and Modifications 1 to 6, the region (arrangement region) where the shooting button 201 is provided is the display surface 11c, but the region where the shooting button 201 is provided is a region different from the display surface 11c. May be taken. For example, the shooting button 201 may be configured as a hard key as shown in FIG. As shown in the display of FIG. 14, the configuration of the modification example 1 can be applied to the foldable mobile phone 1 in which the cabinet 10 further includes a numeric keypad 203 that is a hard key. In this case, the area where the numeric keypad 203 is arranged is an area for arranging the shooting button 201, and a configuration is adopted in which any key of the numeric keypad 203 is set as the shooting button 201. The camera module 16 is arranged so as to face in the direction opposite to the direction in which the numeric keypad 203 faces. In the columns of the left side (after 0 seconds), the center (after T seconds), and the right side (after 2 T seconds) in the table of FIG. 14, the shooting button 201 has the “4” key, “2” key, and “9”, respectively. An example of moving to the key every T seconds is shown. The CPU 100 moves the shooting button 201 by setting any key of the numeric keypad 203 as the shooting button 201 every predetermined time (T seconds), and displays the text 204 for notifying the arrangement of the shooting button 201 on the display surface. 11c. It should be noted that the position of the shooting button 201 may be notified by turning on a key backlight arranged on the key set to the shooting button 201 (see FIG. 14). Further, a configuration may be adopted in which the text 204 is not displayed and the position of the photographing button 201 is notified by turning on the key backlight.

  In the foldable mobile phone 1 described above, a display on the display surface 11c of the mobile phone 1 is used instead of or in addition to the configuration in which the numeric keypad is used as an area for arranging the shooting button 201 as described above. A configuration may be adopted in which the arrangement of the photographed button 201 (image thereof) is changed. Even in this configuration, the display surface 11c constituting the arrangement area of the photographing button 201 is arranged so as to face the direction opposite to the direction in which the camera module 16 faces during normal photographing, so that the user displays on the display surface 11c. An operation for photographing can be performed by visually recognizing the photographing button 201 to be photographed. Furthermore, voyeurism can be prevented by changing the image layout of the shooting button 201.

  Note that the mobile phone 1 does not have to be configured so that the arrangement region of the photographing button 201 always faces the direction opposite to the photographing direction V. For example, the present invention can be applied to the folding mobile phone 1 described above. In this case, when the mobile phone 1 is in a folded state, the arrangement area of the photographing button 201 does not face in the direction opposite to the photographing direction V.

  Further, the arrangement area in which the photographing button 201 is arranged is not limited to the display surface 11c and the numeric keypad 203, and may be configured to include, for example, an area in which other hard keys or soft keys are arranged.

  In the above embodiment and Modifications 2 to 5, the change (movement) of the shooting button 201 is stopped when a predetermined determination condition is satisfied. For example, the movement distance of the shooting button 201 is set to be small. Alternatively, a configuration may be adopted in which the change is not canceled but suppressed, such as by setting a large time interval for movement.

In the above embodiment and Modifications 1 to 6, the camera module 16 is arranged such that the shooting direction V and the display surface 11c face in opposite directions. However, the camera module 16 may be provided at a position where the direction in which the display surface 11c faces and the shooting direction V are substantially the same. For example, it may be provided on the same surface as the display surface 11c. Even when this configuration is adopted, it is difficult for a person who attempts voyeurism to perform an operation on the photographic button 201 due to a change in the arrangement of the photographic button 201, and thus voyeurism is suppressed.

  Furthermore, the present invention can be applied not only to an application for shooting a still image but also to an application for shooting a moving image. For example, when an application for shooting a moving image is executed, the button arrangement for the CPU 100 to start recording can be displayed on the display surface 11c and the button can be moved. . Moreover, each structure of the said embodiment and the modifications 1-6 is applicable also to the change of the said button.

  In the above embodiment, the present invention is applied to a smartphone-type mobile phone. However, the present invention is not limited to this, and the present invention may be applied to other types of mobile phones such as a straight type, a folding type, and a sliding type.

  Furthermore, the present invention is not limited to a mobile phone, and can be applied to devices with a camera function such as a digital camera, a digital video camera, a PDA (Personal Digital Assistant), and a tablet PC (Tablet PC).

  In addition, the embodiment of the present invention can be variously modified as appropriate within the scope of the technical idea shown in the claims.

1 Mobile phone (equipment with camera function)
11c Display surface (Display surface, arrangement area)
12 Touch sensor (input unit)
15a Speaker (Output unit)
16 Camera module (shooting unit)
100 CPU (control unit, tilt detection unit, face detection unit, output unit)
101 Memory (storage unit)
201 Shooting button (operation unit)
108 Acceleration sensor (Tilt detector)
V Shooting direction
θ Tilt angle (Tilt, Tilt angle)
θ1 threshold (first threshold)
θ2 threshold (second threshold, threshold)

Claims (12)

A shooting section for shooting the subject;
An operation unit for photographing by the photographing unit, arranged in a predetermined arrangement region;
And a controller that changes the arrangement of the operation unit in the arrangement area. In the apparatus with a camera function according to claim 1,
The control unit changes at least one of the position, size, and shape of the operation unit as control for changing the arrangement.
A device with a camera function. In the apparatus with a camera function according to claim 1 or 2,
A tilt detector that detects a tilt in a vertical direction of the shooting direction by the shooting unit;
The control unit changes the arrangement of the operation unit based on the inclination.
A device with a camera function. In the apparatus with a camera function according to claim 3,
The control unit changes the position of the operation unit on the arrangement area to a position corresponding to the tilt angle when the tilt angle at which the photographing direction is tilted upward from the horizontal plane exceeds a first threshold.
A device with a camera function. In the apparatus with a camera function according to claim 4,
The control unit positions the operation unit at an initial position on the arrangement area when the tilt angle does not exceed the first threshold.
A device with a camera function. In the apparatus with a camera function according to any one of claims 3 to 5,
An output unit that outputs an operation sound when the operation unit is operated;
The output unit is configured to output the operation sound when the operation unit is operated in a state where an inclination angle in which the photographing direction is inclined upward from a horizontal plane exceeds a second threshold value, and the inclination angle is the second threshold value. Different from the operation sound when the operation unit is operated without exceeding
A device with a camera function. In the apparatus with a camera function according to claim 1 or 2,
An inclination detection unit for detecting an inclination in a vertical direction of an imaging direction by the imaging unit;
An output unit that outputs an operation sound when the operation unit is operated,
The output unit is configured to output the operation sound when the operation unit is operated in a state where an inclination angle in which the photographing direction is inclined upward from a horizontal plane exceeds a predetermined threshold, and the inclination angle does not exceed the threshold. And different from the operation sound when the operation unit is operated,
A device with a camera function. In the apparatus with a camera function according to any one of claims 1 to 7,
A storage unit that holds a predetermined condition for determining that the shooting unit is used for the normal shooting;
The control unit suppresses a change in the arrangement of the operation unit when the predetermined condition is satisfied as compared to a case where the predetermined condition is not satisfied.
A device with a camera function. The apparatus with a camera function according to claim 8,
A face detection unit for detecting a human face from an image acquired from the imaging unit;
The condition includes that the face is detected by the face detection unit.
A device with a camera function. In the apparatus with a camera function according to any one of claims 1 to 9,
A display surface facing in a direction opposite to the direction in which the photographing unit faces when photographing by the photographing unit;
An input unit that receives an input to the display surface;
The control unit displays an image corresponding to the operation unit on the display surface, and changes the arrangement of the image on the display surface.
A device with a camera function. To the computer of the device with a camera function equipped with a photographing unit for photographing the subject,
A function of providing an operation unit for photographing by the photographing unit in a predetermined arrangement region;
A function of changing the arrangement of the operation unit in the arrangement area,
A program characterized by that. In a voyeurism prevention control method for a device with a camera function including a photographing unit for photographing a subject,
Arranging an operation unit for photographing by the photographing unit in a predetermined arrangement region;
Changing the arrangement of the operation unit in the arrangement area;
A voyeurism prevention control method characterized by that.

Images