JP2015226167A - Imaging apparatus and control method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an authentication function setting and cancelling method capable of selecting unlock means in accordance with the situation and preventing the cancellation method from being leaked.SOLUTION: An imaging apparatus includes: an authentication function (CPU) 140 for restricting use or functions of a camera 100; an authentication function cancellation means selection screen formed from a plurality of authentication function cancellation means 130, 140, 150, 160 and 200 for cancelling the authentication function and notification means corresponding to any one of the plurality of authentication function cancellation means; display means 200 for displaying any one of a plurality of authentication function cancellation means selection screens; selection means 140, a part of 153 and 200 for selecting any one of the plurality of authentication function cancellation means on the selection screen; and discrimination means (CPU) 140 by which, when any one of the plurality of authentication function cancellation means is selected, it is discriminated whether the correspondence of the plurality of authentication function cancellation means and the notification means is right. The authentication function is cancelled only when it is discriminated by the discrimination means that the correspondence is right.

Description

  The present invention relates to a digital camera, and more particularly to a method for setting and canceling an authentication function of a camera having an authentication function.

  Conventionally, some digital cameras have an authentication function for requesting input of a password or recognizing an individual when a user uses the camera or reproduces a recorded image. In such a camera, proposals have been made to improve usability for users and prevent password leakage to third parties.

  In Patent Document 1, in a portable terminal device capable of changing the device body to a plurality of styles, a style-specific terminal lock release table and a style-specific function restriction release table are referred to based on the current style. Then, select the authentication means associated with the current style, and when the authentication means authenticates that the user is a legitimate user, cancel the terminal lock setting or restrict the use of the selected function A mobile terminal device with an authentication function for canceling is disclosed.

  Patent Document 2 discloses an apparatus that releases a lock state and makes a transition to a screen other than the lock screen in accordance with the operation content of an object on the lock screen displayed on the display.

  In Patent Document 3, a fingerprint detection type information input device capable of detecting a fingerprint pattern and a movement amount and a movement direction of the fingerprint pattern, an optical device characterized in that an authentication function and setting and changing of an operation target can be operated and input. Is disclosed.

JP 2007-336245 A JP 2013-131108 A JP 2006-30201 A

  However, in the prior art disclosed in Patent Document 1, since the authentication unit is provided for each style of the apparatus main body, when the user wants to select the authentication means, it is necessary to change the style of the apparatus main body. There was a problem that the operability was impaired. In addition, there is a problem in that it is necessary to provide a device only for use as an authentication means, such as a fingerprint sensor, which increases costs. In the prior art disclosed in Patent Document 2, use of the device in a situation where the touch display cannot be used is not considered. In the prior art disclosed in Patent Document 3, use of the apparatus in a situation where fingerprint detection cannot be used is not considered.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an authentication function setting and releasing method for a digital camera having an authentication function, which can select a lock releasing means according to the situation and prevent leakage of the lock releasing method.

In order to achieve the above object, the present invention provides:
An authentication function (140) that restricts the use of the camera (100) and camera functions;
A plurality of authentication function releasing means (130, 140, 150, 160, 200) for releasing the authentication function;
A plurality of authentication function canceling means selection screens (206, 207, 208, 209) associated with any one of the plurality of authentication function canceling means and any one of the plurality of authentication function canceling means ( 210, 220, 230, 240),
Display means (200) for displaying any one of the plurality of authentication function release means selection screens;
A selection means (140, 153, 154, 155, 200) for selecting any one of the plurality of authentication function release means on the plurality of authentication function release means selection screens;
When one of the plurality of authentication function releasing means is selected on the plurality of authentication function releasing means selection screen, it is determined whether or not the correspondence between the plurality of authentication function releasing means and the notification means is correct. And having a discriminating means (140),
The authentication function is canceled only when the determination unit determines that the correspondence between the plurality of authentication function cancellation units and the notification unit is correct.

  According to the present invention, it is possible to provide an authentication function setting and releasing method for a digital camera having an authentication function, which can select a lock releasing unit according to the situation and prevent leakage of the lock releasing method.

1 is a configuration block diagram of a camera according to an embodiment of the present invention. 1 is an external view of a camera according to an embodiment of the present invention. It is a setting screen of the lock release means concerning embodiment of this invention. It is a lock release means selection screen according to the embodiment of the present invention. It is a setting flow of the lock release means concerning embodiment of this invention. It is a display selection flow of the lock release means according to the embodiment of the present invention. It is the lock release flow concerning embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First, the configuration of the camera will be described with reference to FIGS. FIG. 1 is a configuration block diagram of a camera according to an embodiment of the present invention. FIG. 2 is an external view of a camera according to the embodiment of the present invention. 2A is a front view, FIG. 2B is a top view, FIG. 2C is a side view, and FIG. 2D is a rear view.

  1 and 2, the camera 100 includes a camera body 110 and a photographic lens 120 that is detachably attached to the camera body 110 and takes in a photographic light beam. The camera body 110 has a lens detection sensor (180) that detects attachment / detachment of the taking lens 120. Reference numeral 130 denotes an image sensor made of a CMOS, a CCD, or the like that photoelectrically converts a photographic light beam taken from the photographic lens 120. The imaging light flux taken from the imaging lens 120 is photoelectrically converted by the imaging device 130 and recorded as a captured image on a recording medium (not shown).

  Reference numeral 140 denotes a CPU that controls the driving of the camera 100. Reference numeral 151 denotes a shutter button that performs a photographing operation when pressed. The shutter button 151 is configured in two steps. Specifically, the auto focus adjustment (AF) and automatic exposure control (AE) are activated in a state of “half-pressing” to lightly press and stop the shutter button 151 to lock AF and AE, and further pressing from “half-press”. Shooting is performed by “full pressing”. A power lever 152 switches the power of the camera 100 between “on” and “off”.

  Reference numeral 153 denotes a selection dial constituted by a rotatable member for selecting the setting of the camera 100 or selecting a predetermined item from a plurality of items displayed on the rear monitor 200 described later. Reference numeral 154 denotes a selection button for determining an item selected by the selection dial 153.

  Reference numeral 155 denotes a direction input button that can input in eight directions by tilting in the diagonal direction between the vertical and horizontal directions from the center of the button. The direction input button 155 can select the setting of the camera 100 or can select a predetermined item from a plurality of items displayed on the rear monitor 200 described later. Moreover, the direction input button 155 can determine the item selected by the direction input by pressing the center of the button.

  Reference numeral 156 denotes a reproduction button for reproducing a captured image recorded on a recording medium (not shown). Reference numeral 157 denotes a menu button for shifting to a mode for setting the camera 100 and a mode for setting the unlocking means, which is the authentication function of the present invention. Reference numeral 200 denotes a rear monitor that displays a captured image recorded in a recording medium (not shown), a setting screen for changing settings of the camera 100, and the like. The rear monitor 200 has a touch panel function, and a user can edit a photographed image or change camera settings by touching or sliding the surface of the rear monitor 200 with a finger or a stylus (not shown). . In the description of the present invention, touch operation and slide operation on the surface of the rear monitor 200 are expressed as touch input.

  Reference numeral 160 denotes a microphone for collecting sounds around the camera 100. The sound collected by the microphone 160 can be recorded as sound data on a recording medium (not shown) together with the photographed image. Reference numeral 170 denotes a temperature sensor that detects the temperature around the camera 100.

  The image sensor 130 corresponds to an authentication function canceling unit described in the claims of the present invention. The CPU 140 corresponds to an authentication function, an authentication function release unit, a selection unit, a determination unit, a display priority determination unit, a voice detection unit, and a measurement unit described in the claims of the present invention. The selection dial 153, the selection button 154, and the direction input button 155 correspond to selection means described in the claims of the present invention. The microphone 160 corresponds to an authentication function releasing unit and a voice detecting unit described in the claims of the present invention. The temperature sensor 170 corresponds to the temperature detecting means described in the claims of the present invention. The lens detection sensor 180 corresponds to the lens detection means described in the claims of the present invention. The rear monitor 200 corresponds to an authentication function releasing unit and a display unit described in the claims of the present invention.

  The authentication function setting and canceling method according to the embodiment of the present invention will be described below with reference to FIGS.

  FIG. 3 is a setting screen for unlocking means according to the embodiment of the present invention. FIG. 3A is a screen for selecting a background of an unlocking means selection screen, which will be described later, on the setting screen of the unlocking means. FIG. 3B is a screen for selecting the unlocking means on the setting screen for the unlocking means.

  FIG. 4 is a lock release means selection screen according to the embodiment of the present invention. Here, the lock release means selection screen corresponds to the authentication function release means selection screen described in the claims of the present invention. FIG. 4A shows a landscape photograph set as the background of the unlocking means selection screen. FIG. 4B shows a room photo set as the background of the unlocking means selection screen. FIG. 4C shows an oblique line pattern set as the background of the unlocking means selection screen. FIG. 4D shows a single color set as the background of the unlocking means selection screen.

  FIG. 5 is a setting flow of unlocking means according to the embodiment of the present invention. FIG. 6 is a display selection flow of the unlocking means according to the embodiment of the present invention. FIG. 7 is an unlocking flow according to the embodiment of the present invention.

  First, with reference to FIGS. 3 and 5, the setting of the unlocking means according to the embodiment of the present invention will be described.

  3 and 5, first, when the user operates the menu button 157 to shift to the lock release unit setting mode in step 301, the setting screen of FIG. 3A is displayed on the rear monitor 200. Reference numeral 206 denotes a background a (landscape) of a lock release means selection screen described later. Reference numeral 207 denotes a background b (indoor) of a lock release means selection screen described later. Reference numeral 208 denotes a background c (hatched pattern) of an unlocking means selection screen described later. Reference numeral 209 denotes a background d (single color) of a lock release means selection screen described later.

  In step 302, the user selects a first background on the unlocking means selection screen from images stored in advance in the camera 100. In the present embodiment, the background a (landscape) 206 is selected as the first background while the setting screen of FIG. Here, when the user selects the background a (landscape) 206 as the first background, the display on the rear monitor 200 changes from FIG. 3A to FIG. 3B. A password icon 201 indicates unlocking by a password. A face authentication icon 202 indicates unlocking by face authentication. A gesture icon 203 indicates unlocking by a gesture. Reference numeral 204 denotes a voice input icon indicating unlocking by voice input.

  Next, in step 303, the user selects the first unlocking means. In this embodiment, the password icon 201 indicating the password unlocking means is selected while the setting screen shown in FIG. 3B is displayed on the rear monitor 200.

  Next, in step 304, the CPU 140 associates the first background with the notification means of the first unlocking means. That is, when the background of the unlocking means selection screen is the background a (landscape) 206, it is set so that only the selection of the unlocking means by the password is valid. In the subsequent steps, description of the setting screen of the unlocking means in FIGS. 3 (a) and 3 (b) is omitted.

  Next, in step 305, the user selects the second background of the unlocking means selection screen from the images stored in advance in the camera 100. In the present embodiment, the background b (indoor) 207 is selected as the second background.

  Next, in step 306, the user selects the second unlocking means. In this embodiment, the unlocking means by face authentication is selected.

  Next, in step 307, the CPU 140 associates the second background as the notification means of the second lock release means. That is, when the background of the unlocking means selection screen is the background b (indoor) 207, only the unlocking means selected by face authentication is set to be valid.

  Next, in step 308, the user selects a third background on the unlocking means selection screen from images stored in advance in the camera 100. In the present invention, the background c (hatched pattern) 208 is selected as the third background.

  Next, in step 309, the user selects the third unlocking means. In this embodiment, the unlocking means by voice input is selected.

  Next, in step 310, the CPU 140 associates the third background with the notification means of the third unlocking means. That is, when the background of the unlocking means selection screen is the background c (shaded pattern) 208, only the selection of the unlocking means by voice input is set to be valid.

  Next, in step 311, the user selects the fourth background on the unlocking means selection screen from the images stored in advance in the camera 100. In this embodiment, the background d (single color) 209 is selected as the fourth background.

  Next, in step 312, the user selects the fourth unlocking means. In the present invention, the unlocking means by voice input is selected.

  Next, in step 313, the CPU 140 associates the fourth background as the notification means of the fourth lock release means. That is, when the background of the unlocking means selection screen is the background d (single color) 209, only the selection of the unlocking means by voice input is set to be valid.

  Next, the user operates the menu button 157 to end the lock release unit setting mode.

  Next, with reference to FIG. 4, the unlocking means selection screen according to the embodiment of the present invention will be described.

  In FIGS. 4A, 4B, 4C, and 4D, reference numeral 201 denotes a password icon that indicates unlocking by a password. When the user selects the password icon 201 as the unlocking means, unlocking is possible by inputting a combination of a plurality of numbers and characters set in advance by touch input. Here, a combination of a plurality of numbers and characters set in advance may be input with the selection dial 153, the selection button 154, and the direction input button 155.

  A face authentication icon 202 indicates unlocking by face authentication. When the face authentication icon is selected by the user as the unlocking means, the face can be shot with the camera 100 and unlocked when the face matches a preset face.

  A gesture icon 203 indicates unlocking by a gesture. When the user selects the gesture icon 203 as the unlocking means, the unlocking can be performed by inputting a gesture set in advance by touch input. Here, the input of a preset gesture may be performed by taking a moving image of the gesture with the camera 100.

Reference numeral 204 denotes a voice input icon indicating unlocking by voice input. When the voice input icon 204 is selected by the user as the unlocking means, the lock can be released by inputting a password set in advance by voice input into the microphone 160.
Reference numeral 205 denotes a lock icon indicating a lock release means selection screen.

  Reference numeral 206 denotes a background a (landscape) of the unlocking means selection screen. Here, the background a (landscape) 206 is associated with the password icon 201 by the setting method described above. 210 (FIG. 4A) is a first unlocking means selection screen which is set so that only the selection of the unlocking means by the password is valid. The first unlocking means selection screen 210 corresponds to the first authentication function releasing means selection screen described in the claims of the present invention.

  Reference numeral 207 denotes a background b (indoor) of the unlocking means selection screen. Here, the background b (indoor) 207 is associated with the face authentication icon 202 by the setting method described above. Reference numeral 220 (FIG. 4B) denotes a second unlocking means selection screen which is set so that only the selection of the unlocking means by face authentication is valid. The second unlocking means selection screen 220 corresponds to the second authentication function releasing means selection screen described in the claims of the present invention.

  Reference numeral 208 denotes a background c (hatched pattern) of the unlocking means selection screen. Here, the background c (hatched pattern) is associated with the gesture icon 203 by the setting method described above. 230 (FIG. 4C) is a third unlocking means selection screen that is set so that only the selection of the unlocking means by the gesture is enabled. The third unlocking means selection screen 230 corresponds to the third authentication function releasing means selection screen described in the claims of the present invention.

  Reference numeral 209 denotes a background d (single color) of the unlocking means selection screen. Here, the background d (single color) 209 is associated with the voice input icon 204 by the setting method described above. Reference numeral 240 (FIG. 4D) denotes a fourth unlocking means selection screen set so that only the selection of the unlocking means by voice input is enabled. The fourth unlocking means selection screen 240 corresponds to the fourth authentication function releasing means selection screen described in the claims of the present invention.

  As described above, by providing a plurality of unlocking means and associating the background of the unlocking means selection screen with the unlocking means, it becomes difficult for a third party to determine the unlocking means, thus preventing leakage of the unlocking method. Is possible. Furthermore, the function used for the plurality of unlocking means can suppress an increase in cost by using a device used for shooting and playback of the camera.

  Next, with reference to FIG. 4 and FIG. 6, the determination of the priority order when the unlocking means selection screen is displayed on the rear monitor 200 will be described.

  4 and 6, first, when the user operates the power lever 152 to turn on the power of the camera 100, the process proceeds to the lock release unit selection display mode in step 401. Here, the selection display mode is a mode in which the CPU 140 automatically selects any one of a plurality of unlocking means selection screens and displays it on the rear monitor 200 based on the priority order described later.

  Next, in step 402, the temperature around the camera 100 is measured by the temperature sensor 170.

  In step 403, the CPU 140 determines whether the measured temperature is equal to or higher than a predetermined temperature. If the measured temperature is equal to or higher than the predetermined temperature, the process proceeds to step 405. If the measured temperature is equal to or lower than the predetermined temperature, the process proceeds to step 404. In step 404, the CPU 140 sets a lower priority for automatically selecting the unlocking means by gesture. For example, in a cold environment such as a cold region, the user may be wearing gloves and touch input is difficult. Therefore, by setting a low priority for automatically selecting the unlocking means by gesture, it is possible to easily select the unlocking means that does not require touch input. Here, in this embodiment, when the temperature is equal to or lower than a predetermined temperature, the priority for automatically selecting the unlocking means by gesture is set low, but automatic selection of the unlocking means by gesture is prohibited. Also good.

  Next, in step 405, the sound around the camera 100 is collected by the microphone 160, and the sound pressure is measured by the CPU 140.

  Next, in step 406, the CPU 140 determines whether the measured sound pressure is equal to or lower than a predetermined sound pressure. If the measured sound pressure is equal to or lower than the predetermined sound pressure, the process proceeds to step 408. If the measured sound pressure is equal to or higher than the predetermined sound pressure, the process proceeds to step 407. In step 407, the CPU 140 sets a lower priority for automatically selecting the unlocking means by voice input. For example, in a noisy environment such as a crowd, noise may be collected by the microphone 160, and voice input may not be performed correctly. Therefore, by setting a lower priority for automatically selecting the unlocking means by voice input, it is possible to easily select the unlocking means that does not use the microphone 160. Here, in this embodiment, when the sound pressure is equal to or higher than a predetermined sound pressure, the priority for automatically selecting the unlocking means by voice input is set low, but automatic selection of the unlocking means by voice input is prohibited. You may do it.

  Next, in step 408, the lens detection sensor (180) detects attachment / detachment of the taking lens 120, and in step 409, it is determined whether the taking lens 120 is attached to the camera body 110. If the photographing lens 120 is attached, the process proceeds to step 411. If not, the process proceeds to step 410. In step 410, the CPU 140 sets a lower priority for automatically selecting the unlocking means by face authentication. For example, when the photographing lens 120 is not attached, photographing for performing face authentication cannot be performed, and it is necessary to bother the wearing of the photographing lens 120. Therefore, by setting a low priority for automatically selecting the unlocking means by face authentication, it is possible to easily select the unlocking means that does not use the photographing lens 120. Here, in this embodiment, when the photographing lens 120 is not attached, the priority for automatically selecting the unlocking means by face authentication is set low, but the automatic selection of the unlocking means by face authentication is performed. It may be prohibited.

  Next, in step 411, the CPU 140 automatically selects the unlocking means and determines the unlocking means.

  Next, in step 412, a background unlocking means selection screen associated with the determined unlocking means is displayed on the rear monitor 200. For example, if it is determined in step 411 that the password is to be unlocked, the first unlocking means selection screen 210 is displayed on the rear monitor 200 in step 412. Here, in this embodiment, when the user operates the power lever 152 and the power of the camera 100 is turned on, the display mode is changed to the display selection mode of the unlocking means in step 401. However, the operation member 150 ( 151 to 157), the display may be shifted to the display selection mode of the unlocking means. For example, in any one of the unlocking means selection screens 210, 220, 230, and 240, each time the user operates the menu button 157, the display may be shifted to the unlocking means display selection mode in step 401.

  As a result, if the automatic selection result of the unlocking means is not as desired by the user, or if you forget the preset unlocking method, the automatic selection can be redone, so the user can unlock according to the situation It is easy to use because the method can be selected.

  Next, the unlocking method will be described with reference to FIGS. 4 and 7, when any one of the unlocking means selection screens 210, 220, 230, and 240 is displayed on the rear monitor 200, in step 501, the user performs unlocking means by touch input. Select. For example, the password icon 201 is selected by touch input while the lock release means selection screen 210 is displayed on the rear monitor 200. Here, in this embodiment, the unlocking means is selected by touch input. However, the unlocking means may be selected by any one of the operation members 150 (151 to 157). . For example, the unlocking means may be selected by operating the selection dial 153, and the unlocking means may be determined by operating the selection button 154. Further, on the unlocking means selection screen, the unlocking means may be selected by pressing the direction input button 155 in a direction corresponding to the direction in which the unlocking means is displayed.

  Next, in step 502, the CPU 140 determines whether the combination of the selected unlocking means and the notification means associated in advance is correct. If the combination is correct, the process proceeds to step 503, and if the combination is incorrect, the process proceeds to step 504. In step 503, the CPU 140 sets an “OK” flag and proceeds to step 505. In step 504, the CPU sets an “NG” flag and proceeds to step 505. Here, it is desirable that the “OK” flag and the “NG” flag be an internal process by the CPU 140 and not be notified to the user. As a result, even if a third party performs an unlocking operation illegally, it is difficult to determine whether the operation is correct, and thus it is possible to prevent leakage of the unlocking method.

  Next, at step 505, a transition is made to a lock release screen (not shown) corresponding to the selected lock release means.

  Next, in step 506, an unlocking operation corresponding to the unlocking means selected by the user is performed. For example, when the password icon 201 is selected as the unlocking means, an unlocking operation is performed in which a combination of a plurality of numbers and characters set in advance is input by touch input.

  In step 507, the CPU determines whether the “OK” flag or the “NG” flag is set. If the “OK” flag is set, the process proceeds to step 508, and if the “NG” flag is set, the process proceeds to step 510.

  Next, in step 508, the CPU 140 determines whether or not the unlocking operation is correct. If the unlocking operation is correct, the process proceeds to step 509. If the unlocking operation is incorrect, the process proceeds to step 510.

  Next, in step 509, the CPU 140 performs unlocking. In step 510, a warning is displayed on the rear monitor 200 for a predetermined time. For example, a message such as “Incorrect password” is displayed. Here, it is desirable not to notify the user whether the combination of the selected unlocking means and the notification means associated in advance is wrong or the unlocking operation is wrong. As a result, even if a third party performs an unlocking operation illegally, it is difficult to determine whether the operation is correct, and thus it is possible to prevent leakage of the unlocking method.

  Next, at step 511, the CPU 140 counts the number of times the warning is displayed.

  Next, in step 512, the CPU 140 determines whether or not the number of times the warning is displayed is equal to or less than a predetermined number. If it is less than or equal to the predetermined number of times, the process returns to step 505 to transition to an unlock screen (not shown). If the number is equal to or greater than the predetermined number, the process proceeds to step 513.

  Next, in step 513, the CPU 140 sets the lock release means by face authentication, returns to step 505, and transitions to a lock release screen (not shown). Here, in the present embodiment, when the number of times the warning is displayed is equal to or greater than the predetermined number, the lock release unit by face authentication is set, but the lock release may be prohibited. As a result, unauthorized unlocking by a third party can be prevented.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

(Other embodiments)
The present invention is also realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus reads the program code. It is a process to be executed. In this case, the program and the storage medium storing the program constitute the present invention.

100 camera, 110 camera body, 120 photographing lens, 130 image sensor,
180 Lens detection sensor

Claims (11)

An authentication function (140) that restricts the use of the camera (100) and camera functions;
A plurality of authentication function releasing means (130, 140, 150, 160, 200) for releasing the authentication function;
A plurality of authentication function canceling means selection screens (206, 207, 208, 209) associated with any one of the plurality of authentication function canceling means and any one of the plurality of authentication function canceling means ( 210, 220, 230, 240),
Display means (200) for displaying any one of the plurality of authentication function release means selection screens;
A selection means (140, 153, 154, 155, 200) for selecting any one of the plurality of authentication function release means on the plurality of authentication function release means selection screens;
When one of the plurality of authentication function releasing means is selected on the plurality of authentication function releasing means selection screen, it is determined whether or not the correspondence between the plurality of authentication function releasing means and the notification means is correct. And having a discriminating means (140),
An authentication function canceling method, wherein the authentication function is canceled only when the determination means determines that the correspondence between the plurality of authentication function canceling means and the notification means is correct.   2. The authentication according to claim 1, wherein at least one of the plurality of authentication function canceling units includes a first authentication function canceling unit selection screen (210) that is an authentication function canceling unit by inputting a password. How to cancel the function.   2. The authentication according to claim 1, wherein at least one of the plurality of authentication function canceling units includes a second authentication function canceling unit selection screen (220) that is an authentication function canceling unit based on face authentication. How to cancel the function.   The display means has a touch panel function, and at least one of the plurality of authentication function release means is a third authentication function release means selection screen (230) which is an authentication function release means by gesture input to the display means. The method for canceling the authentication function according to claim 1, further comprising:   2. The authentication according to claim 1, wherein at least one of the plurality of authentication function cancellation units includes a fourth authentication function cancellation unit selection screen (240) that is an authentication function cancellation unit by voice input. How to cancel the function.   A priority order determined by the display priority order determining means, including a display priority order determining means (140) for determining a priority order for displaying any one of the plurality of authentication function releasing means selection screens on the display means; The authentication function canceling method according to claim 1, wherein any one of the plurality of authentication function canceling unit selection screens is displayed on the display unit.   The temperature detection means (170) for detecting the ambient temperature of the camera, and when the ambient temperature of the camera is equal to or lower than the predetermined temperature, the priority order for displaying the third authentication function release means selection screen on the display means The authentication function canceling method according to any one of claims 1 to 6, further comprising the display priority order determining unit configured to control the setting so as to be set low.   Voice detection means (140, 160) that collects sound around the camera and measures the sound pressure, and the fourth authentication function is canceled when the sound pressure around the camera exceeds a predetermined sound pressure The authentication according to any one of claims 1 to 6, further comprising: a display priority determining unit that controls to set a lower priority for displaying the unit selection screen on the display unit. How to cancel the function.   Lens detection means (180) for detecting whether or not the photographing lens (120) is attached to the camera, and when the photographing lens is not attached to the camera, a second authentication function canceling means selection screen is displayed on the display means. The authentication function canceling method according to claim 1, further comprising: a display priority determining unit configured to control the display priority to be set low.   A measuring unit (140) for measuring the number of times that the determination unit determines that the correspondence between the plurality of authentication function releasing units and the notification unit is incorrect, and the number of times measured by the measuring unit is a predetermined number. 2. The authentication function canceling method according to claim 1, wherein when the number of times is exceeded, control is performed so as to set the authentication function canceling means by face authentication.   The determination means measures the number of times the plurality of authentication function cancellation means and the notification means are determined to be incorrect. The measurement means and the number of times measured by the measurement means exceed a predetermined number. The authentication function canceling method according to claim 1, wherein the authentication function canceling is controlled to be prohibited when the authentication function is canceled.