JP5735404B2 - Device with camera function, program and method for preventing voyeurism - Google Patents

Description

  The present invention relates to a device with a camera function such as a digital camera, a digital video camera, a mobile phone, a PDA (Personal Digital Assistant), and a tablet PC (Tablet PC), and a program suitable for use with the device with the camera function and a voyeurism prevention method. Is.

  In devices with camera functions such as mobile phones and digital video cameras, the prevention of voyeurism has been a challenge. For this reason, a device with a camera function having a function for preventing voyeurism has been proposed.

  For example, when a device with a camera function is ready to start shooting by a user's switch operation or the like, a device with a camera function that sounds a warning sound and gives an alarm if the surrounding noise level is above a predetermined volume It has been proposed (see Patent Document 1). According to this configuration, since a warning draws the attention of a person in the vicinity, voyeurism using the device with the camera function can be prevented.

JP-A-2005-260823

  However, with the above-described voyeurism prevention function, an alarm may be issued even when photographing is not intended for voyeurism. If a warning sound is sounded during the proper shooting of a bag, the user may be annoyed, so the user may be forced to give up shooting at a place where the user wants to perform shooting.

  Thus, when an alarm is given during photographing of a bag that is originally proper, the convenience of photographing using a device with a camera function is reduced.

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

  A 1st aspect of this invention is related with the apparatus with a camera function which is provided with the imaging | photography part and can image | photograph a moving image. The device with a camera function according to this aspect includes a display unit, an audio output unit for outputting audio, an operation input unit, and the audio output unit at a predetermined timing after the recording of the moving image is started. When the notification control unit that controls the display unit to perform a notification that prompts a predetermined operation for stopping the output of the alarm sound, and when the predetermined operation according to the notification is not input via the operation input unit, An alarm control unit that controls the audio output unit to output an alarm sound.

  In the apparatus with a camera function according to this aspect, the alarm control unit is configured to stop the alarm when the predetermined operation is input through the operation input unit while continuing the alarm. The audio output unit can be controlled.

In the device with a camera function according to this aspect, the notification control unit sends a notification prompting a predetermined operation for stopping the output of the alarm sound by the audio output unit at a predetermined timing after the alarm is stopped. The display can be controlled to do again. In this case, the alarm control unit controls the audio output unit to output the alarm sound when the predetermined operation corresponding to the notification made again is not input through the operation input unit.

  The apparatus with a camera function according to this aspect may further include a storage unit that holds a predetermined condition for determining that the recording is performed for the normal shooting. In this case, when it is determined that the predetermined condition is satisfied, the notification control unit controls the audio output unit to stop the notification.

  In the device with a camera function according to this aspect, the alarm control unit controls the audio output unit to stop the alarm when it is determined that the predetermined condition is satisfied after outputting the alarm sound. Can do.

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

  The apparatus 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 predetermined condition includes that an inclination angle at which the photographing direction is inclined upward from a horizontal plane exceeds a predetermined threshold.

  In the device with a camera function according to this aspect, the display unit may include a display surface capable of displaying a screen. In this case, the notification control unit displays the moving image on the display surface and displays an image prompting the predetermined operation so as to overlap the moving image displayed on the display surface.

  The device with a camera function according to this aspect may further include a recording control unit that records the moving image in a moving image storage unit that stores the moving image. In this case, the recording control unit stops the recording when the predetermined operation is not input via the operation input unit after the alarm sound is output from the audio output unit.

  The second aspect of the present invention relates to a program. The program according to this aspect includes a photographing unit, a display unit, a sound output unit for outputting sound, and an operation input unit, and the recording of the moving image is performed on a computer having a camera function capable of photographing a moving image. A function for causing the display unit to perform a notification for prompting a predetermined operation for stopping the output of the alarm sound by the audio output unit at a predetermined timing after being started, and the predetermined operation in response to the notification A function of outputting the alarm sound to the audio output unit when not input via the operation input unit.

  A third aspect of the present invention relates to a method for preventing voyeurization of a device with a camera function that includes an imaging unit, a display unit, an audio output unit for outputting audio, and an operation input unit, and is capable of imaging a moving image. In the voyeurism prevention method according to this aspect, at the predetermined timing after the recording of the moving image is started, the display unit is notified of a predetermined operation for stopping the output of the alarm sound by the audio output unit. And a step of causing the sound output unit to output the alarm sound when the predetermined operation according to the notification is not input via the operation input unit.

  According to the present invention, it is possible to provide a device with a camera function, a program, and a voyeurism prevention 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 procedure of the imaging | photography process based on embodiment. It is a flowchart which shows the procedure of a notification / alarm process based on embodiment. It is a figure which shows the example of a display of the screen for the notification which urges | urges the operation for canceling | releasing an alarm before and after the start of an alarm based on the example 1 of a change. 10 is a flowchart illustrating a procedure of imaging processing according to a modification example 1. It is a figure for demonstrating the inclination angle of an imaging | photography direction and an imaging | photography direction based on the example 1 of a change. 10 is a flowchart illustrating a procedure of notification / alarm processing according to a modification example 2; It is a figure which shows the example of a display of the screen for the notification which urges | urges the operation for canceling | releasing an alarm before and after the start of an alarm based on the example 2 of a change. 12 is a flowchart illustrating a procedure of imaging processing according to a modification example 3. 10 is a flowchart illustrating a procedure of notification / alarm processing according to a modification example 4; 14 is a flowchart illustrating a procedure of imaging processing according to a modification example 5. It is a figure which shows the example of a display of the screen for the notification which urges | urges operation for canceling | releases the alarm based on the example 5 of a change. It is a flowchart which shows the procedure of an imaging | photography process and a notification / warning process based on the other example of a change. It is a figure which shows the structural example by which a hard key is used as a cancellation | release button based on the other example of a change, and the example of a display for the screen which alert | urges operation for canceling the alarm in the said structure. It is a flowchart which shows the procedure of a notification / alarm process based on the other example of a change.

  Embodiments of the present invention will be described below 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, and the display surface 11c appears outside. The panel backlight 11b illuminates the liquid crystal panel 11a.

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

  The touch sensor 12 detects an input position with respect to the display surface 11c. The touch sensor 12 is disposed on the display surface 11c and is covered with a transparent cover. 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 and a second transparent electrode 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 touch, tap, slide, and flick on the display surface 11c by touching the display surface 11c with a contact member such as his / her finger or pen. Here, “touch” is an operation of bringing a finger into contact with the display surface 11c. “Tap” is an operation of releasing (releasing) the finger after bringing the finger into contact with the display surface 11c. “Flick” is an operation of bringing a finger into contact with the display surface 11c and flipping it (an operation of moving the finger at a predetermined speed and then releasing it). “Slide” is an operation of moving a predetermined distance while keeping the finger in contact with the display surface 11 c and then releasing the finger from the touch panel.

  The touch sensor 12 is not limited to the capacitive touch sensor 12 and may be another touch sensor 12 such as an ultrasonic type, a pressure-sensitive type, a resistive film type, and a light detection type.

  A key operation unit 13 is provided below the touch panel (in the negative direction of the Y axis). The key operation unit 13 includes a setting key 13a, a home key 13b, and a back key 13c. 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 output from the speaker 15 and emitting 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 sound such as a shutter sound 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 a subject in the shooting direction V (see the arrow in FIG. 1B), that is, the direction in which the lens window is directed, is transferred from the lens window to the camera module 16. Is taken in.

  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 generated 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 in accordance with the collected audio into a digital audio signal and outputs it to the CPU 100.

  The audio decoder 105 performs decoding processing and D / A conversion on the digital audio signal from the CPU 100 and outputs the converted electric 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 shown in FIGS. 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.

  Further, the CPU 101 executes an application (camera function) for shooting a moving image, and the moving image shot by the camera module 16 is recorded in the memory 101. In other words, the captured moving image data is stored in a predetermined area of the memory 101 in a predetermined file format. Note that an application for shooting a moving image stores moving image data in a storage unit 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.

  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.

  Now, the mobile phone 1 has a function of giving an alarm to inform the surroundings that shooting is being performed when shooting a moving image. Here, the mobile phone 1 is configured to perform a notification that prompts an operation for stopping the alarm from being performed prior to the alarm, and to perform an alarm when the user does not perform an operation in response to the notification. Yes. In the following, processing related to notification and warning will be described.

  FIG. 3 is a flowchart showing the procedure of the photographing process according to the present embodiment. The shooting process is started in response to an operation for starting an application for shooting a moving image.

  When the photographing process is started, the CPU 100 first activates the camera module 16 (S101). Thereafter, until an operation to end the application (camera function) is performed (S102: NO), the CPU 100 displays the moving image acquired from the camera module 16 on the display surface 11c. If an operation to end the application is performed (S102: YES), the CPU 100 stops the camera module 16 (S103), and ends the shooting process.

  During the shooting process, the CPU 100 starts recording a moving image in response to an operation for starting recording (S104: YES) (S105).

  Next, the CPU 100 starts to measure the time t1 from 0 seconds using the timer 109 (S106). Then, the CPU 100 determines whether or not the time t1 is equal to or less than a predetermined threshold T1 (t1 ≦ T1) (S107). Until the operation for ending the recording is performed (S108: NO), the determination process of step S107 is repeatedly executed.

  Here, the predetermined threshold value T1 is a value that defines a time interval at which the notification / alarm processing (S110) for the notification and alarm described above is executed. That is, when the notification / alarm processing (S110) is completed, the notification / alarm processing is executed again after T1 seconds. The threshold value T1 is set to about several seconds to several tens of seconds, for example. When the threshold value T1 is set small, the notification is frequently made, so that the effect of preventing voyeurism can be enhanced. In addition, when the threshold value T1 is set to be large, the notification is not frequently made and the convenience of shooting can be kept good.

  When an operation for ending the recording is performed while t1 ≦ T1 (S107: YES → S108: YES), the CPU 100 ends the recording (S109) and returns to the process of step S102.

  Now, with the recording continued (S108: NO), when the time t1 exceeds the threshold T1 (S107: NO), the CPU 100 executes notification / alarm processing (S110). Note that the recording started in step S105 is continued even during the execution of the notification / alarm processing.

  FIG. 4 is a flowchart showing a procedure of notification / alarm processing (S110). FIG. 5A is a diagram illustrating a display example of a screen on which notification for prompting an operation for stopping the alarm is performed before the alarm is started. FIG. 5B is a diagram illustrating a display example of a screen on which notification for prompting an operation for canceling the alarm is performed after the alarm is started.

When the notification / alarm processing is started, the CPU 100 first makes a notification prompting the user to press (touch) the release button 202 as shown in FIG. 5A (S111). Here, the cancel button 202 is a button for inputting an operation for canceling (releasing) an alarm that informs the surroundings that photographing is being performed. The CPU 100 displays the window 201 so as to overlap the moving image displayed on the display surface 11c. In the window 201, a cancel button 202 and a text 203 for notifying the user to press the cancel button 202 for stopping the alarm are displayed.

  Note that the character “XX seconds” in the text 203 shown in FIG. 5A indicates the time until an alarm (S117) described later is started. The time (T2) from when the window 201 is displayed until the alarm is started is set to, for example, about several seconds to several tens of seconds.

  Here, the constant T2 is a predetermined threshold value. When the threshold value T2 is set to be small, notification is frequently made, so that the effect of preventing voyeurism can be enhanced. In addition, when the threshold value T2 is set to be large, the notification is not frequently made and the convenience of shooting can be kept good.

  Next, the CPU 100 uses the timer 109 to start measuring time t2 from 0 seconds (S112). Thereafter, until the time t2 is stopped in step S115, the CPU 100 determines the time until the alarm is started for the character “XX seconds” in the text 203 according to the time t2 (ie, T2−t2 seconds). Update to

  CPU100 determines whether time t2 is below threshold value T2 (S113). The determination process (S113) is repeatedly executed while pressing of the release button 202 is not detected (S114).

  When the photographer is shooting while watching the moving image displayed on the display surface 11c, the notification is immediately noticed if the window 201 notifies the display surface 11c. Therefore, the photographer presses the release button 202 before the threshold T2 elapses.

  If the touch sensor 12 detects that the release button 202 is pressed while the time t2 is equal to or less than the threshold T2 (S113: YES → S114: YES), the CPU 100 stops measuring the time t2 (S115), and notifies it. Is canceled (S116). When the notification is canceled (S116), the CPU 100 cancels the display of the window 201. The CPU 100 completes the execution of the process of step S116, ends the notification / alarm process, and proceeds to the process of step S106 shown in FIG. Thereby, the alarm based on this notification is stopped.

  On the other hand, when the photographer is shooting without viewing the moving image displayed on the display surface 11c, the release button 202 is pressed before the threshold value T2 elapses even when the window 201 is notified. I can't.

  When the time t2 exceeds the predetermined threshold T2 (S113: NO), the CPU 100 issues an alarm as follows (S117 to S119).

  First, the CPU 100 starts an alarm for notifying the surroundings that photographing is being performed by the mobile phone 1 (S117). Specifically, the CPU 100 outputs an alarm sound from the speaker 15a (S117).

The warning sound is, for example, a sound such as an alarm sound, music, and voice (for example, “shooting is being performed”). The alarm sound is output at a volume that can be heard by people around. The volume of the alarm sound is, for example, C according to the volume of surrounding sounds collected by the microphone 14.
A configuration appropriately set by the PU 100 may be adopted. Further, when the mobile phone 1 includes a light emitting unit, an alarm (flashing flashing, illumination, etc.) may be performed by outputting light from the light emitting unit instead of the alarm sound.

  In step S117, the CPU 100 displays the text 203 on the window 201 as shown in FIG. In the text 203 of FIG. 5B, the characters “within XX seconds” displayed in the text 203 shown in FIG. 5A are deleted.

  After the alarm is started, while the touch sensor 12 does not detect pressing of the release button 202 (S118: NO), the CPU 100 continues the alarm.

  When the photographer notices the alarm, the photographer confirms the notification on the display surface 11c and presses the release button 202.

  When pressing of the release button 202 is detected by the touch sensor 12 (S118: YES), the CPU 100 stops (stops) the alarm. Then, the CPU 100 proceeds to the process of step S115 described above. That is, after executing steps S115 and S116, the CPU 100 ends the notification / alarm processing shown in FIG. 4, and further proceeds to the processing of step S106 in FIG. When the operation for ending the recording is not performed within T1 seconds after the completion of the notification / alarm processing S110 (S108: NO → S107: NO), the CPU 100 executes the notification / alarm processing again (S110).

  When an operation for ending the recording is performed during the execution of the notification / alarm process shown in FIG. 4, the CPU 100 ends the notification / alarm process after stopping the notification or alarm as necessary. A configuration may be adopted in which the process proceeds to the process of step S109 in FIG.

  In addition, when an operation for terminating an application for shooting a moving image is performed during the execution of the notification / alarm processing, the CPU 100 cancels the notification or the alarm as necessary, and then executes the notification / alarm processing. A configuration may be adopted in which the process proceeds to the process of step S103 in FIG.

  As described above, according to the configuration of the present embodiment, after T1 seconds from the start of moving image recording by the mobile phone 1, the CPU 100 cancels the alarm that informs the surroundings that the shooting is being performed on the display surface 11c. A notification that prompts the user to press the release button 202 is given. When the time T2 seconds elapses after the notification without pressing the release button 202 detected by the touch sensor 12, the CPU 100 issues an alarm. Since it is not easy for a person who attempts voyeurism to always monitor the presence or absence of a notification, the release button 202 cannot be pressed in response to the notification, and an alarm is issued. Since the alarm draws the attention of the surroundings, it is difficult for a person who attempts voyeurism to perform voyeurism using the mobile phone 1. Therefore, voyeurism using the mobile phone 1 is suppressed.

  On the other hand, when the user performs normal shooting, that is, shooting of a moving image not intended for voyeurism, the user can see the notification on the display surface 11c and can press the release button 202 in response to the notification. Therefore, a user who performs normal shooting can perform normal shooting without starting an alarm and without stopping recording.

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

In addition, the CPU 100 again performs notification that prompts the user to press the release button 202 T1 seconds after the notification or alarm is stopped. For this reason, it is necessary for the photographer to perform photographing in a state where the visual recognition of the notification and the operation for stopping the alarm are continuously possible. That is, it is difficult for a person who attempts voyeurism to perform voyeurism using the cellular phone 1 in a state where it is left in a bag, for example. Therefore, voyeurism can be more effectively suppressed.

  Further, when an alarm is issued based on the notification / alarm processing, a user who performs normal shooting can immediately stop the alarm according to the notification by visually recognizing the notification displayed on the display surface 11c. . However, for example, if an alarm is issued when voyeurism is performed using the mobile phone 1 in a state where it is left in a bag as described above, it is difficult to immediately stop the alarm. While keeping the convenience of taking photos, voyeurism can be suppressed.

<Modification 1>
FIG. 6 is a flowchart illustrating the procedure of the photographing process according to the first modification. In the flowchart of FIG. 6, the processes of steps S121 and S122 are inserted before the notification / alarm process of step S110 in the flowchart shown in FIG.

  A photographing process according to the first modification will be described. In the first modification, when it is determined in step S107 that the time t1 has exceeded the threshold value T1 (S107: NO), the process of step S121 is executed, and then the determination process of step S122 is executed.

  In the first modification, a configuration is adopted in which the execution of the notification / warning process (S110) is canceled based on the determination process (S122) regarding the tilt angle θ of the shooting direction V.

  FIGS. 7A to 7C are diagrams for explaining the above-described shooting direction V and the inclination angle θ with respect to the horizontal plane (see the alternate long and short dash line) in the shooting direction V. FIG. 7 (a), 7 (b) and 7 (c) are side views of the mobile phone 1 in a state where the inclination angles θ are 10 °, 45 ° and 90 °, respectively. Here, the inclination angle θ represents an angle at which the photographing direction V faces upward with respect to the direction of the horizontal plane, and can take a value in a range of −90 degrees to +90 degrees. θ = 0 ° indicates that the shooting direction V faces the horizontal direction. When the shooting direction V is tilted upward, θ> 0, and θ = + 90 ° indicates that the shooting direction V is tilted directly upward. When the shooting direction V is tilted downward, θ <0, and θ = −90 ° indicates that the shooting direction V is tilted directly downward. Note that the shooting direction V and the tilt angle θ may be detected using a gyro sensor.

  Returning to FIG. 6, the CPU 100 detects the tilt angle θ in step S <b> 121. Then, the CPU 100 determines whether or not the inclination angle θ is equal to or smaller than a predetermined threshold θ1 (for example, 30 °), that is, θ ≦ θ1 (S122).

  The threshold value θ1 is set to a value that is approximately the upper limit of the assumed inclination angle θ when the 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 is set small when priority is given to suppressing voyeurism. Further, the threshold value θ1 is set large when priority is given to the convenience of shooting.

  When the mobile phone 1 is in the state shown in FIG. 7A (θ = 10 °), θ ≦ θ1 (= 30 °) is satisfied, and therefore YES is determined in step S122. When the mobile phone 1 is in the state shown in FIG. 7B or FIG. 7C (θ = 45 ° or 90 °), θ> θ1, and therefore NO is determined in step S122. If the shooting direction V is tilted downward, that is, if the tilt angle θ is a negative value (θ <0), the condition θ ≦ θ1 is satisfied, so YES is determined in step S122.

When the tilt angle θ is equal to or smaller than the threshold θ1 (S122: YES), the CPU 100 stops the execution of the notification / alarm process and proceeds to the process of step S108. That is, when the inclination angle θ is equal to or smaller than the threshold θ1 (S122: YES), the notification is stopped.

  On the other hand, when the tilt angle θ exceeds the threshold θ1 (S122: NO), the CPU 100 executes notification / alarm processing (S110). The notification / alarm processing in this modification is the same processing as the notification / alarm processing (FIG. 4) of the above embodiment.

  As described above, according to the configuration of the first modification example, when the inclination angle θ in the shooting direction V is equal to or smaller than the threshold θ1, it is assumed that normal shooting not intended for voyeurism is performed, and the notification / alarm processing is executed. Is canceled. In other words, since the currently performed shooting is not a shooting that is a concern for voyeurism, the notification and the alarm are stopped because there is no need for an alarm.

  As described above, when it is determined that normal shooting that does not aim at voyeurism is performed, the user can continue shooting without pressing the release button 202 in response to the notification. Therefore, the convenience of shooting is kept good.

  On the other hand, when shooting is performed in a state where the inclination angle θ in the shooting direction V exceeds the threshold θ1, it is determined that shooting is being performed in a state where there is a concern about voyeurism rather than normal shooting. A notification prompting the user to press the button 202 is made. Further, when pressing of the release button 202 corresponding to the notification is not detected, an alarm is started. Therefore, voyeurism is suppressed while maintaining the convenience of normal shooting.

<Modification 2>
FIG. 8 is a flowchart illustrating a procedure of notification / alarm processing according to the second modification. The notification / alarm processing according to the present modification example is executed based on the shooting process (FIG. 6) according to the first modification example. That is, the notification / alarm process (FIG. 8) according to this modification corresponds to the notification / alarm process of step S110 shown in FIG. 6 based on the fact that the tilt angle θ in the shooting direction V exceeds the predetermined threshold θ1. It is executed as a process.

  The flowchart in FIG. 8 is obtained by adding steps S131 to S134 to the flowchart in FIG. The processes of steps S131 and S132 are executed after NO is determined in step S114. The processes of steps S133 and S134 are executed after NO is determined in step S114.

  The processing in steps S131 and S133 is processing for detecting the inclination angle θ, similarly to the processing in step S121 shown in FIG. The processing in steps S132 and S134 is a processing for determining whether or not the inclination angle θ is equal to or smaller than a predetermined threshold θ1, that is, θ ≦ θ1, as in the processing in step S122 shown in FIG. It is.

  FIG. 9A is a diagram illustrating a display example of a screen on which a notification for prompting an operation for canceling the alarm is performed before the alarm is started. In step S111 (FIG. 8), the CPU 100 displays a window 201 including a release button 202 and text 203 on the display surface 11c as shown in FIG. 9A. The text 203 shown in FIG. 9A is substantially the same as the text 203 shown in FIG. 5A, but further includes a message that prompts the user to change the camera direction (shooting direction V).

  After the notification based on the process of step S111, before the alarm is started (S113: YES), when the orientation of the mobile phone 1 is returned so that the inclination angle θ is equal to or less than θ1 (S132: YES), The CPU 100 stops the alarm. Then, the CPU 100 stops measuring time t2 (S115) and stops the notification (S116).

  After the notification based on the process of step S111, if the orientation of the mobile phone 1 is not returned (S132: NO), an alarm is started when the time t2 exceeds a predetermined threshold T2 (S113: NO). (S117).

  FIG. 9B is a diagram illustrating a display example of a screen on which notification for prompting an operation for canceling the alarm is performed after the alarm is started. In step S117, the CPU 100 starts an alarm, deletes the characters “within XX seconds” (see FIG. 9A) in the text 203 displayed on the window 201, and FIG. 9B. The text 203 shown in FIG.

  After the alarm is started based on the process of step S117, if the touch sensor 12 does not detect pressing of the release button 202 (S118: NO), the CPU 100 detects the tilt angle θ (S133), and detects the detected tilt angle θ. Is a threshold value θ1 (S134). When the inclination angle θ is equal to or smaller than the threshold θ1 (S134: YES), the CPU 100 does not return to the process of step S118, stops the alarm (S119), and further proceeds to the processes of steps S115 and S116.

  That is, after the notification is started, when the orientation of the mobile phone 1 is returned so that the shooting direction V becomes substantially horizontal (specifically θ ≦ θ1) (S134: YES), the CPU 100 stops the alarm. .

  In addition, after the alarm is started based on the process of step S117, when the orientation of the mobile phone 1 is not returned (S134: NO), the CPU 100 continues the alarm.

  As described above, according to the configuration of the present modification example, after the notification / warning process is started based on the inclination angle θ in the shooting direction V exceeding the threshold θ1, the user can set the inclination angle θ to be equal to or less than the threshold θ1. By changing the attitude of the mobile phone 1, notification and alarm can be stopped.

<Modification 3>
In the first modification, the notification / alarm processing is executed based on the fact that the tilt angle θ in the shooting direction V exceeds a predetermined threshold θ1. In the third modification, the notification / alarm processing is executed based on the fact that no human face is detected from the moving image acquired from the camera module 16.

  FIG. 10 is a flowchart illustrating a procedure of imaging processing according to the third modification. In the flowchart of FIG. 10, the processes of steps S121 and S122 in the flowchart of FIG. 6 are replaced with the determination process of step S141. Specifically, the determination process in step S141 is a process for determining whether or not a human face is detected from the moving image acquired from the camera module 16.

  For example, when shooting is performed in a state where the lens window of the mobile phone 1 is directed toward a person's face, the frame image of the shot moving image includes an image of the person's face. In this case, the CPU 100 detects a person's face from the moving image (S141: YES), stops execution of the notification / alarm process on the assumption that normal shooting is performed, and proceeds to the process of step S108.

  On the other hand, if the captured moving image does not include an image of a person's face, the CPU 100 does not detect the person's face from such a moving image (S141: NO), and proceeds to the notification / alarm processing in step S110 (FIG. 4). move on. For example, when the user shoots a person from behind, the moving image does not include an image of the person's face, and therefore NO is determined in step S141.

  The process (S141) for determining such face detection is executed as follows, for example.

  The CPU 100 extracts a region mainly composed of skin color from the frame image of the moving image, and further, on the extracted region, facial features such as eyes, nose, mouth, wrinkles, etc. on the region of the frame image. Detection is based on the distribution of colors, patterns, and the like. When the CPU 100 detects a facial feature portion with a certain degree of accuracy, the CPU 100 determines that an image of a human face has been detected from the video (S141: YES). The CPU 100 determines that a human face is not detected from the moving image when the facial feature portion is not detected from the moving image with a certain degree of accuracy (S141: NO).

  For example, when a user performs shooting while facing a person who is a subject, a face is detected from a moving image. In such a case, it is highly likely that the subject person recognizes that photographing is being performed by the mobile phone 1, and the possibility of voyeurism is low. Therefore, the execution of the notification / alarm process is stopped.

  As described above, according to the configuration of the third modification example, when a person's face is detected from a captured moving image, the notification / alarm processing is stopped assuming that normal shooting is being performed. On the other hand, when shooting is performed in a state in which a human face is not detected from the shot video, it is determined that shooting is being performed in a state in which voyeurism is concerned rather than normal shooting, and the release button 202 Is configured to notify the user of pressing the button. Therefore, voyeurism is suppressed while maintaining the convenience of normal shooting.

<Modification 4>
In the second modification example, the notification and the alarm that are made are stopped when the inclination angle θ in the shooting direction V exceeds a predetermined threshold value θ1. In the fourth modification, the notification and the warning that have been made are canceled based on the detection of a person's face from the captured video.

  FIG. 11 is a flowchart illustrating a procedure of notification / alarm processing according to the fourth modification. The notification / alarm processing according to this modification example is executed based on the imaging process (FIG. 10) of the modification example 3 described above. That is, the notification / alarm processing according to this modification is executed based on the fact that no human face is detected from the moving image acquired from the camera module 16.

  In the flowchart of FIG. 11, the processes of steps S131 and S132 in the flowchart of FIG. 8 are replaced with the determination process of step S151, and the processes of steps S133 and S134 are replaced with the determination process of step S152. Steps S151 and S152 are the same as the determination process in step S141 of FIG. That is, the determination processing in steps S151 and S152 is processing for determining whether or not a human face is detected from the moving image acquired from the camera module 16.

  In step S151, when the face of a person is detected from the moving image acquired from the camera module 16 (S151: YES), the CPU 100 stops the time t2 without issuing an alarm (S115). The notification for prompting the operation for canceling is canceled (S116).

  On the other hand, if the face of a person is not detected from the moving image acquired from the camera module 16 (S151: NO) and the time t2 exceeds the predetermined threshold T2 (S113: NO), an alarm is issued (S117).

Similarly, in step S152, when a human face is detected from the moving image (S152: YES), the CPU 100 stops or stops the alarm (S119), and step S1.
15. The process of S116 is executed.

  On the other hand, when a person's face is not detected from the moving image acquired from the camera module 16 (S152: NO), the alarm started in step S117 is continued.

  As described above, according to the configuration of this modified example, when the face of a person is detected from the video after the notification / alarm processing is started, the notification and the alarm are stopped as normal shooting is being performed. The

<Modification 5>
FIG. 12 is a flowchart illustrating a procedure of notification / alarm processing according to the fifth modification.

  The flowchart of FIG. 12 is obtained by further adding the process of step S161 to the previous stage of step S111 shown in the flowchart of FIG.

  In step S161, the CPU 100 sets the display position of the window 201 irregularly based on a random number, a pseudo-random number, or the like. In the next step S111, the CPU 100 displays the window 201 at the set display position on the display surface 11c. With the above process, the release button 202 is displayed at a different position every time the notification / alarm process is executed.

  FIGS. 13A to 13C are diagrams showing the display position of the window 201 for making a notification prompting the user to press the release button 202 based on the notification / alarm processing according to this modification. FIGS. 13A to 13C each show a display example of the window 201 based on the first to third executions of the process of step S161 after the start of the application for shooting a moving image.

  In each of FIGS. 13A to 13C, the windows 201 are respectively displayed on the upper side, the lower side, and the approximate center of the display surface 11c. As described above, the display positions of the window 201, the release button 202, and the text 203 change every time the window 201 is displayed on the display surface 11c.

  As described above, according to the configuration of this modified example, the display position of the window 201 displayed on the display surface 11c is different each time the notification / alarm processing is executed. That is, the display position of the release button 202 is different every time. Therefore, it is not easy for the user to predict the position where the release button 202 will be displayed next. For this reason, a person who attempts voyeurism cannot stop the notification and the alarm by pressing the release button 202 by register without visually recognizing the window 201. Therefore, voyeurism can be suppressed more effectively.

  Note that the display position of the window 201 may be set according to a predetermined rule or according to a predetermined table composed of an array of coordinates specifying the display position. At this time, it is preferable that the display position is set so that the display position of the window 201 is substantially different every time notification / alarm processing is executed.

<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.

  The said embodiment and the modifications 1-5 can mutually be combined.

For example, the configurations of the modification examples 3 and 4 may be combined with the configuration of the modification example 1. In this case, as shown in FIG. 14, the determination process in step S122 shown in FIG. 6 is replaced with the determination process in step S171. The determination process of step S171 is a process of determining YES when the tilt angle θ is the threshold value θ1 or when a face is detected from the moving image acquired from the camera module 16.

  Similarly, the configurations of the modification examples 3 and 4 may be combined with the configuration of the modification example 2. In this case, the determination processing in steps S132 and S134 shown in FIG. 8 is replaced with step S171 shown in FIG.

  Furthermore, the configuration of the modification example 5 may be combined with the configurations of the modification examples 1 to 4. In this case, in the flowcharts (FIGS. 4, 8, and 11) showing the notification / alarm processing according to each of the first to fourth modified examples, the process of step S <b> 161 shown in FIG. 12 is inserted before the step S <b> 111.

  In the modified examples 1 to 4, the notification / alarm processing is performed based on a predetermined determination condition (the inclination angle θ is equal to or smaller than the threshold θ1 or a face is detected from a moving image acquired from the camera module 16). Execution is aborted. Such a determination condition may be various determination conditions such as a condition for detecting a high probability that photographing not intended for voyeurism is performed, a condition for detecting a case where there is no high concern about voyeurism, and the like. Moreover, a new determination condition for determining whether or not to cancel the notification / alarm processing can be configured by appropriately combining a plurality of determination conditions with logical operators such as AND, OR, and NOT.

  In the above embodiment and Modification Examples 1 to 5, a notification (text 203) prompting the user to press the release button 202 is given on the display surface 11c. In this way, it is desirable that notification is made at a position that is visible from the direction in which the display surface 11c on which the captured moving image is displayed is directed. This makes it easier for the user to view the notification during recording. However, the notification may be made at a position different from the display surface 11c as long as it is visible from the direction in which the display surface 11c is directed.

  In the above embodiment and Modification Examples 1 to 5, the release button 202 is provided on the display surface 11c. However, a configuration in which the release button 202 is provided at a position different from the display surface 11c may be employed. For example, as shown in FIGS. 15A and 15B, in the foldable mobile phone 1 having the key operation unit 204 including a hard key in the cabinet 10, one of the hard keys is used as the release button 202. It may be configured.

  FIG. 15A shows a screen when the window 201 is displayed on the display surface 11c and the release button 202 based on the processing corresponding to step S111 (see FIG. 5A) of FIG. 3 according to the present embodiment. It is shown. As shown in FIG. 15A, for example, the enter key can be used as the release button 202.

  FIG. 15B shows a screen and a release button 202 when the window 201 is displayed on the display surface 11c based on the process corresponding to step S161 of FIG. As shown in FIG. 15B, in the process of step S161 according to the modification example 5, a configuration is adopted in which any key of the key operation unit 204 is randomly selected and the selected key is used as the release button 202. Also good. In FIG. 15B, the “4” key is set to the release button 202. In this case, a window 201 including text 203 is displayed on the display surface 11c.

Note that, unlike the notification prompting the user to press the release button 202, the release button 202 needs to be arranged at a position where the display surface 11c on which the moving image obtained from the camera module 16 is displayed is visible. Absent. For example, a configuration in which the release button 202 is arranged on the side surface portion of the mobile phone 1 (see FIGS. 1A and 1B) may be employed.

  The notification that prompts the user to press the release button 202 is not limited to the display of the image (text 203) on the display surface 11c, but is performed by, for example, blinking the key backlight provided in the release button 202. Also good.

  In the above embodiment and Modification Examples 1 to 5, recording is continued after an alarm sound is output from the audio output unit based on the notification / alarm processing. However, a configuration may be adopted in which the recording is stopped after the alarm sound is output.

  For example, as a modification of the notification / alarm processing (FIG. 4) of the above embodiment, a predetermined time (for example, several seconds to several tens of seconds) after the start of an alarm sound (S117) as shown in the flowchart of FIG. If the pressing of the release button 202 is not detected during the period (S181: YES), the recording may be stopped (S182). After the recording is stopped, for example, the CPU 100 stops the camera module (S103) and stops the shooting process (FIG. 3) for shooting a moving image. The CPU 100 stops the alarm sound when recording is stopped or at a predetermined timing after the recording is stopped. By stopping the recording after the alarm sound is output, it is possible to avoid the continuation of the recording in a state where there is a concern about voyeurism in which the alarm sound is ignored or concealed. The above-described configuration for stopping recording can be applied to the first to fifth modifications.

  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 video camera, a digital 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 unit, display surface)
12 Touch sensor (Operation input unit)
15a Speaker (Audio output unit)
16 Camera module (shooting unit)
100 CPU (notification control unit, alarm control unit, tilt detection unit, recording control unit)
101 memory (storage unit, moving image storage unit)
108 Acceleration sensor (Tilt detector)
202 Cancel button (operation input section, image)
V Shooting direction
θ Inclination angle θ1 Threshold

Claims (11)

In a device with a camera function that has a shooting unit and can shoot movies,
A display unit;
An audio output unit for outputting audio;
An operation input section;
A notification control unit that controls the display unit to perform a notification that prompts a predetermined operation for stopping the output of the alarm sound by the audio output unit at a predetermined timing after the recording of the moving image is started;
An alarm control unit that controls the audio output unit to output the alarm sound when the predetermined operation in response to the notification is not input via the operation input unit;
A device with a camera function. In the apparatus with a camera function according to claim 1,
The alarm control unit controls the audio output unit to stop the alarm when the predetermined operation is input via the operation input unit while continuing the alarm.
A device with a camera function. In the apparatus with a camera function according to claim 1 or 2,
The notification control unit controls the display unit to perform a notification prompting a predetermined operation for stopping output of an alarm sound by the audio output unit at a predetermined timing after the alarm is stopped,
The alarm control unit controls the audio output unit to output the alarm sound when the predetermined operation corresponding to the notification made again is not input through the operation input unit.
A device with a camera function. In the apparatus with a camera function as described in any one of Claims 1 thru | or 3,
A storage unit that holds a predetermined condition for determining that the recording is performed for the normal shooting;
The notification control unit controls the audio output unit to stop the notification when it is determined that the predetermined condition is satisfied,
A device with a camera function. In the apparatus with a camera function according to claim 4,
The warning control unit controls the voice output unit to stop the warning when it is determined that the predetermined condition is satisfied after the warning sound is output.
A device with a camera function. In the apparatus with a camera function according to claim 4 or 5,
A face detection unit for detecting a person's face from the video;
The predetermined 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 as described in any one of Claims 4 thru | or 6,
A tilt detector that detects a tilt in a vertical direction of the shooting direction by the shooting unit;
The predetermined condition includes an inclination angle at which the photographing direction is inclined upward from a horizontal plane exceeds a predetermined threshold.
A device with a camera function. In the apparatus with a camera function according to any one of claims 1 to 7,
The display unit includes a display surface capable of displaying a screen,
The notification control unit displays the moving image on the display surface, and displays an image prompting the predetermined operation to be superimposed on the moving image displayed on the display surface.
A device with a camera function. In the apparatus with a camera function according to any one of claims 1 to 8,
A recording control unit for recording the moving image in a moving image storage unit for storing the moving image;
The recording control unit stops the recording when the predetermined operation is not input via the operation input unit after the alarm sound is output from the audio output unit.
A device with a camera function. A shooting section;
A display unit;
An audio output unit for outputting audio;
An operation input unit,
To a computer with a camera function that can shoot movies,
A function for causing the display unit to perform a notification prompting a predetermined operation for stopping the output of the alarm sound by the audio output unit at a predetermined timing after the recording of the moving image is started;
When the predetermined operation according to the notification is not input via the operation input unit, a function of outputting the alarm sound to the audio output unit is provided.
A program characterized by that. A shooting section;
A display unit;
An audio output unit for outputting audio;
An operation input unit,
A method for preventing voyeurization of a camera-equipped device that can shoot movies
A step of causing the display unit to perform a notification that prompts a predetermined operation for stopping the output of the alarm sound by the audio output unit at a predetermined timing after the recording of the moving image is started;
When the predetermined operation according to the notification is not input via the operation input unit, the audio output unit outputs the warning sound,
A method for preventing voyeurism characterized by that.

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