JP6292875B2 - Imaging apparatus, control method thereof, and program - Google Patents

Description

  The present invention relates to an imaging apparatus, a control method thereof, and a program.

Some imaging devices such as digital cameras store parameters relating to shooting in advance and automatically set the stored parameters when conditions are satisfied.
Patent Document 1 discloses a digital camera that stores a zoom position when the power is turned off and does not move the zoom lens to an initial position when the current position and the storage position of the zoom lens are equal when the power is turned on.
Patent Document 2 stores shooting parameters when the power is turned off, determines whether or not the camera is handheld when the power is turned on, sets the zoom position to the initial state when the hand is held, and sets the stored zoom position when the hand is not held. A digital camera is disclosed.

  In addition, a photographing system that links a digital camera and a portable terminal by wireless communication is known. In such a shooting system, the live image of the digital camera is displayed on the portable terminal via wireless communication, so that the operator of the portable terminal can issue a shooting instruction while checking the live image. Shooting is possible.

JP2013-098901A JP 2009-267482 A

  Here, it is assumed that remote shooting is performed in cooperation with a mobile terminal using a digital camera in which parameters related to shooting as described above are automatically set. In this case, there is a problem in that the live image displayed on the mobile terminal changes depending on the timing at which the shooting parameters are set in the digital camera. For example, when the zoom position in Patent Document 1 or Patent Document 2 is automatically set, the zoom position is changed even though the operator of the mobile terminal is not operating. Therefore, a live image while the zoom position is changed is displayed on the mobile terminal, which gives the operator a sense of discomfort.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to display a live image displayed on a mobile terminal without a sense of incongruity when the imaging apparatus is remotely photographed from the mobile terminal.

The present invention is an imaging apparatus that transmits a live image to a portable terminal and shoots through an imaging unit in response to a shooting instruction from the portable terminal, before wireless communication with the portable terminal is started. Storage means for storing the zoom position when the lens barrel is extended, lens barrel control means for retracting the lens barrel when the wireless communication is started with the portable terminal, after the wireless communication has been started between the mobile terminal, setting means for setting the zoom position stored by said storing means as a parameter related to shooting, after the zoom position is set by the setting means, the imaging means And a wireless communication means for transmitting the live image generated by the generating means to the portable terminal.

  According to the present invention, it is possible to display a live image displayed on a mobile terminal without a sense of incongruity when the imaging device is remotely photographed from the mobile terminal.

It is a block diagram which shows the structure of a digital camera. It is a block diagram which shows the structure of a mobile telephone. It is a figure for demonstrating the structure of an imaging | photography system. It is a flowchart which shows the process of the digital camera of 1st Embodiment. It is a flowchart which shows the process of the digital camera of 1st Embodiment. It is a figure which shows an example of the screen displayed on the mobile telephone of 1st Embodiment. It is a flowchart which shows the process of the digital camera of 2nd Embodiment. It is a flowchart which shows the process of the digital camera of 3rd Embodiment. It is a figure which shows an example of the parameter regarding imaging | photography of 3rd Embodiment.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated in detail using attached drawing.
(First embodiment)
The imaging system of this embodiment includes a digital camera 100 as an imaging device and a mobile phone 200 as a mobile terminal.

<Configuration of digital camera>
FIG. 1 is a block diagram illustrating a configuration example of a digital camera 100 according to the present embodiment. Although a digital camera will be described here as an imaging device, the present invention is not limited to this case. The imaging apparatus may be an information processing apparatus such as a portable media player, a so-called tablet device, or a personal computer.

The digital camera 100 includes a control unit 101, an imaging unit 102, a nonvolatile memory 103, a work memory 104, an operation unit 105, a display unit 106, a recording medium 110, and a connection unit 111. The control unit 101 is an example of a setting unit, a generation unit, and a lens barrel control unit. The imaging unit 102 is an example of an imaging unit. The nonvolatile memory 103 or the work memory 104 is an example of a storage unit.
The control unit 101 controls each unit of the digital camera 100 according to an input signal and a program described later. Note that instead of the control unit 101 controlling the entire apparatus, a plurality of hardware may share the processing to control the entire apparatus.
The imaging unit 102 converts subject light imaged by a lens included in the imaging unit 102 into an electrical signal, and outputs digital data subjected to noise reduction processing or the like as image data. The captured image data is stored in the buffer memory, and then subjected to a predetermined calculation by the control unit 101 and recorded on the recording medium 110. The imaging unit 102 has a lens barrel, and the zoom position is adjusted by extending the lens barrel.

The nonvolatile memory 103 is an electrically erasable / recordable nonvolatile memory. The nonvolatile memory 103 stores a program to be described later executed by the control unit 101.
The work memory 104 is used as a buffer memory that temporarily stores image data picked up by the image pickup unit 102, an image display memory of the display unit 106, a work area of the control unit 101, and the like.
The operation unit 105 receives an instruction for the digital camera 100 from the operator. The operation unit 105 includes operation members such as a power button for an operator to turn on / off the digital camera 100, a release switch for instructing photographing, and a zoom lever for instructing a zoom operation. included. The operation unit 105 also includes a reproduction button for instructing reproduction of image data, and a touch panel formed on the display unit 106 described later.
The release switch has SW1 and SW2. When the release switch is in a so-called half-pressed state, SW1 is turned on. When the release switch SW1 is turned on, the control unit 101 prepares for shooting such as AF (auto focus) processing, AE (auto exposure) processing, AWB (auto white balance) processing, and EF (flash pre-flash) processing. Further, when the release switch is in a fully-pressed state, SW2 is turned on. When the release switch SW2 is turned on, the control unit 101 performs a photographing process.

The display unit 106 displays a live image captured by the imaging unit 102, displays captured image data, and displays characters for interactive operation. Note that the digital camera 100 is not necessarily provided with the display unit 106. That is, the digital camera 100 may be connected to the internal or external display unit 106 and has at least a function of controlling the display of the display unit 106.
The recording medium 110 is a medium for recording image data output from the imaging unit 102. The recording medium 110 may be detachable from the digital camera 100 or may be built in the digital camera 100. That is, the digital camera 100 only needs to be able to access at least the recording medium 110.

  The connection unit 111 is an interface for connecting to an external device. The digital camera 100 according to the present embodiment can transmit and receive data to and from an external device via the connection unit 111. In the present embodiment, the connection unit 111 includes an interface for communicating with an external device via a wireless LAN. The control unit 101 realizes wireless communication with an external device via the connection unit 111. The communication method is not limited to the wireless LAN.

  In addition, the digital camera 100 of the present embodiment can operate as a slave device in the infrastructure mode. When operating as a slave device, it is possible to join a network formed by an AP by connecting to a peripheral access point (hereinafter referred to as AP). In addition, the digital camera 100 of the present embodiment is a kind of AP, but can also operate as a simple AP (hereinafter referred to as a simple AP) with more limited functions. The AP in this embodiment is an example of a relay device. When the digital camera 100 operates as a simple AP, the digital camera 100 forms a network by itself. Devices around the digital camera 100 can recognize the digital camera 100 as an AP and participate in a network formed by the digital camera 100. It is assumed that a program for operating the digital camera 100 is held in the nonvolatile memory 103 as described above.

  The digital camera 100 according to the present embodiment is a simple AP that is a kind of AP but does not have a gateway function for transferring data received from a slave device to an Internet provider or the like. Therefore, even if data is received from another device participating in the network formed by the own device, it cannot be transferred to a network such as the Internet.

<Configuration of mobile phone>
FIG. 2 is a block diagram illustrating a configuration example of the mobile phone 200 according to the present embodiment. Although a mobile phone is described here as an example of a mobile terminal, the present invention is not limited to this case. The portable terminal may be an information processing apparatus such as a digital camera with a wireless function, a portable media player, a so-called tablet device, a personal computer, or a smartphone.

The mobile phone 200 includes a control unit 201, an imaging unit 202, a nonvolatile memory 203, a work memory 204, an operation unit 205, a display unit 206, a recording medium 210, a connection unit 211, a public network connection unit 212, a microphone 213, and a speaker 214. have.
The control unit 201 controls each unit of the mobile phone 200 according to an input signal and a program described later. Note that instead of the control unit 201 controlling the entire apparatus, a plurality of hardware may share the processing to control the entire apparatus.
The imaging unit 202 converts subject light imaged by a lens included in the imaging unit 202 into an electrical signal, and outputs digital data subjected to noise reduction processing or the like as image data. The captured image data is stored in the buffer memory, and then a predetermined calculation is performed by the control unit 201 and recorded on the recording medium 210.

  The nonvolatile memory 203 is an electrically erasable / recordable nonvolatile memory. Various programs executed by the control unit 201 are stored in the nonvolatile memory 203. It is assumed that a program for communicating with the digital camera 100 is stored and installed in the nonvolatile memory 203 as a camera communication application. Note that the processing of the mobile phone 200 according to the present embodiment is realized by reading a program provided by a camera communication application. It is assumed that the camera communication application has a program for using the basic functions of the OS installed in the mobile phone 200. Note that the OS of the mobile phone 200 may have a program for realizing the processing in the present embodiment.

The work memory 204 is used as a buffer memory for temporarily storing image data generated by the imaging unit 202, an image display memory for the display unit 206, a work area for the control unit 201, and the like.
The operation unit 205 receives an instruction for the mobile phone 200 from the operator. The operation unit 205 includes, for example, an operation member such as a power button for an operator to instruct power on / off of the mobile phone 200 and a touch panel formed on the display unit 206.

The display unit 206 displays image data, characters for interactive operation, and the like. Note that the mobile phone 200 does not necessarily include the display unit 206. That is, the mobile phone 200 can be connected to the display unit 206 and has at least a function of controlling display on the display unit 206.
The recording medium 210 is a medium for recording image data output from the imaging unit 202. The recording medium 210 may be detachable from the mobile phone 200 or may be built in the mobile phone 200. That is, the mobile phone 200 only needs to be able to access at least the recording medium 210.

  The connection unit 211 is an interface for connecting to an external device. The mobile phone 200 according to the present embodiment can transmit and receive data to and from an external device via the connection unit 211. In the present embodiment, the connection unit 211 includes an interface for communicating with an external device via a wireless LAN. The control unit 201 realizes wireless communication with an external device via the connection unit 211. Note that the mobile phone 200 according to the present embodiment can operate at least as a slave device in the infrastructure mode, and can participate in a network formed by neighboring APs.

  The public network connection unit 212 is an interface used when performing public wireless communication. The mobile phone 200 allows an operator to talk with an operator of another device via the public network connection unit 212 and to perform data communication with another device. During a call, the control unit 201 inputs and outputs an audio signal via the microphone 213 and the speaker 214. In this embodiment, the public network connection unit 212 includes an interface for performing communication using 3G. Not only 3G but other communication methods such as LTE, WiMAX, ADSL, FTTH, so-called 4G may be used. Further, the connection unit 211 and the public network connection unit 212 do not necessarily need to be configured by independent hardware, and may be shared by, for example, one antenna.

<Overview of shooting mode>
FIG. 3 is a diagram schematically illustrating an example of a photographing form using the digital camera 100 and the mobile phone 200.
FIG. 3A is a diagram showing a form in which the digital camera 100 is photographed alone. When the photographer 300 half-presses the release switch of the operation unit 105 of the digital camera 100, SW1 is turned on, and the digital camera 100 prepares for shooting. When the photographer 300 fully presses the release switch of the operation unit 105, SW2 is turned on, and the digital camera 100 performs photographing processing. An image obtained by photographing the subject 301 is recorded on the recording medium 110 by the photographing process.

  FIG. 3B is a diagram illustrating a shooting mode at the time of shooting when the digital camera 100 and the mobile phone 200 are wirelessly connected. When the digital camera 100 and the mobile phone 200 are wirelessly connected, a photographing instruction is transmitted to the digital camera 100 via the connection unit 211 when the photographer 300 operates the operation unit 205 of the mobile phone 200. When receiving a shooting instruction from the mobile phone 200, the digital camera 100 performs shooting preparation and shooting processing. An image obtained by photographing the photographer 300 is recorded on the recording medium 110 by the photographing process.

<Normal shooting mode and custom shooting mode>
FIG. 4 is a flowchart illustrating processing of the digital camera 100 when the normal shooting mode or the custom shooting mode is set and activated. Here, the normal shooting mode is a mode for controlling the shooting of the imaging unit 102 in accordance with an operation by the operator. The custom shooting mode is a mode in which shooting-related parameters are stored in advance according to an operation by an operator and are automatically set to the stored parameters.

First, the processing of the digital camera 100 when it is set to the normal shooting mode and activated will be described.
In step S401, the control unit 101 of the digital camera 100 determines whether or not the startup mode is the custom shooting mode. If the mode is the custom shooting mode, the process proceeds to step S402. If the mode is different from the custom shooting mode, the process proceeds to step S406. Here, since the normal shooting mode is set, the process proceeds to step S406.

In step S406, the control unit 101 extends the lens barrel retracted to the camera body to the zoom position (wide-angle end) where the lens barrel is normally extended.
In step S <b> 407, the control unit 101 generates a live image via the imaging unit 102. The control unit 101 starts displaying the generated live image on the display unit 106. The processing when starting in the normal shooting mode is completed by the above-described processing.

Next, processing of the digital camera 100 when the custom shooting mode is set and activated will be described. Here, it is assumed that the zoom position at the time of activation is stored in the non-volatile memory 103 as a parameter relating to photographing that is automatically set. The zoom position at the time of activation is stored in the nonvolatile memory 103 by the control unit 101 when the operator operates the operation unit 105.
In step S401, the control unit 101 of the digital camera 100 determines whether or not the startup mode is the custom shooting mode. Here, since the custom shooting mode is set, the process proceeds to step S402.

In step S <b> 402, the control unit 101 determines whether or not the zoom position at the time of activation is stored in the nonvolatile memory 103 as a parameter relating to shooting. If the zoom position is stored, the process proceeds to step S403. If the zoom position is not stored, the process proceeds to step S406. Here, since the zoom position is stored in advance, the process proceeds to step S403.
In step S403, the control unit 101 extends the lens barrel retracted to the camera body to the zoom position (wide-angle end) where the lens barrel is normally extended.

In step S <b> 404, the control unit 101 generates a live image via the imaging unit 102. The control unit 101 starts displaying the generated live image on the display unit 106.
In step S405, the control unit 101 extends the lens barrel to a previously stored zoom position. Note that since the control unit 101 has already started displaying the live image on the display unit 106 in step S404, the live image until the lens barrel is extended to the stored zoom position is displayed on the display unit 106. .
Here, by storing in advance the zoom position that the operator prefers and the zoom position that is framed so that the subject fits within the frame for shooting in the remote shooting mode described later, the lens barrel reaches that zoom position. Since the operation is extended, the operability during shooting is improved.

  In addition, since the display of the live image is started before the lens barrel is extended to the stored zoom position, it can be recognized that the operation is started after the operator sets the custom shooting mode. Specifically, since a live image is displayed from the wide-angle end until zoomed in to a previously stored zoom position, the operator recognizes that the restoration to the stored zoom position is automatically performed. be able to. Furthermore, by performing the above-described processing, it is possible to shorten the time until a live image is displayed.

<Remote mode>
FIG. 5 is a flowchart showing processing of the digital camera 100 when the remote mode is set and activated. In addition, it may be a case where the normal shooting mode or the custom shooting mode is shifted to the remote mode.
Here, the remote mode is a mode in which the digital camera 100 is controlled in accordance with an instruction from the mobile phone 200 via wireless communication. The remote mode includes a remote shooting mode and an image browsing mode, which will be described later.

  In step S501, the control unit 101 of the digital camera 100 retracts the extended barrel to the camera body. In the present embodiment, the lens barrel remains extended when, for example, a transition is made from the normal shooting mode or the custom shooting mode described above. In this embodiment, the extended lens barrel is once retracted. The reason for retracting the lens barrel will be described later in step S503.

In step S <b> 502, the control unit 101 performs a wireless communication connection process with the mobile phone 200. The control unit 101 starts wireless communication when the connection with the mobile phone 200 is established. Here, a screen displayed on the mobile phone 200 when the wireless communication connection process is completed will be described with reference to FIG.
FIG. 6A is a diagram illustrating an example of a screen displayed on the display unit 206 of the mobile phone 200. The control unit 201 of the mobile phone 200 displays the screen illustrated in FIG. 6A by establishing the connection with the digital camera 100 and starting the camera communication application. In FIG. 6A, a browse selection button 601 and a remote shooting selection button 602 are displayed. Each button is selected by an operation through the operation unit 205 of the mobile phone 200 by the operator.

  The browse selection button 601 is a button that is selected when browsing an image stored in the digital camera 100 is desired. When the browsing selection button 601 is selected, the control unit 201 of the mobile phone 200 transmits a request for shifting the mode of the digital camera 100 to the image browsing mode to the digital camera 100. Here, the image browsing mode is a mode in which an image stored in the digital camera 100 is transferred to the mobile phone 200 in response to an image browsing instruction from the mobile phone 200.

  The remote shooting selection button 602 is a button that is selected when the digital camera 100 is desired to be remotely shot. When the remote shooting selection button 602 is selected, the control unit 201 of the mobile phone 200 transmits a request for shifting the mode of the digital camera 100 to the remote shooting mode to the digital camera 100. Here, the remote shooting mode is a mode in which shooting of the imaging unit 102 of the digital camera 100 is controlled in accordance with a shooting instruction from the mobile phone 200.

In step S <b> 503, the control unit 101 determines whether a request for shifting to the remote shooting mode is received from the mobile phone 200. If a request for shifting to the remote shooting mode is received, the process proceeds to step S504. On the other hand, when the request for shifting to the remote shooting mode is not received, that is, when the request for shifting to the image browsing mode is received, the control unit 101 sets the image browsing mode and ends the processing. In the image browsing mode, the control unit 101 transfers the stored image to the mobile phone 200 in response to a browsing instruction from the mobile phone 200.
As described above, in step S501, the lens barrel is retracted. The reason for this processing is that the image browsing mode is used more frequently than in the remote shooting mode, and the lens barrel becomes an obstacle in the image browsing mode. In addition, if the lens barrel is retracted after an instruction to shift to the image browsing mode is given, it is necessary to shift to the image browsing mode after retracting the lens barrel in order to reduce the peak value of power consumption. This is because it takes time to browse.

  Next, in step S <b> 504, the control unit 101 determines whether the zoom position at the time of activation is stored in the nonvolatile memory 103 as a parameter relating to shooting. If the zoom position is stored, the process proceeds to step S505. If the zoom position is not stored, the process proceeds to step S508.

In step S508, the control unit 101 extends the lens barrel retracted to the camera body to the zoom position (wide-angle end) where the lens barrel is normally extended.
In step S509, the control unit 101 generates a live image via the imaging unit 102. The control unit 101 transmits the generated live image to the mobile phone 200 via the connection unit 111, so that the mobile phone 200 starts displaying the live image. Thereafter, the control unit 101 sets the remote shooting mode and ends the process.

On the other hand, in step S505, the control unit 101 extends the lens barrel retracted in the camera body to the zoom position (wide-angle end) where the lens barrel is normally extended.
In step S506, the control unit 101 extends the lens barrel to a previously stored zoom position. Therefore, when the zoom position that has been framed so that the subject is within the frame before wireless communication with the mobile phone 200 is stored in advance, the zoom position can be restored. By performing the processing in this manner, even when the lens barrel is retracted in step S501, remote shooting can be started from the stored zoom position.

In step S507, the control unit 101 generates a live image via the imaging unit 102. The control unit 101 transmits the generated live image to the mobile phone 200 via the connection unit 111, so that the mobile phone 200 starts displaying the live image. Thereafter, the control unit 101 sets the remote shooting mode and ends the process.
In the flowchart of FIG. 4 described above, the zoom position is restored after starting the display of the live image (steps S404 and S405), but here the display of the live image is started after the zoom position is restored (step S506, Step S507).

  By processing in this way, it is possible to prevent the operator who checks the live image of the mobile phone 200 from feeling uncomfortable when the remote shooting mode is set. That is, if the zoom position is restored after the display of the live image is started, an image different from the zoom position stored by the operator is displayed on the display unit 206 of the mobile phone 200, and the operator is confused. It is because it ends up. If the operator who operates the digital camera 100 and the operator who operates the mobile phone 200 are different, if the zoom position is restored after starting the live image display, the zoom stored from the wide-angle end is stored. This is because the live image until the lens barrel is extended to the position is displayed on the display unit 206, and the operator who operates the mobile phone 200 is confused.

  FIG. 6B is a diagram illustrating an example of a screen displayed on the display unit 206 of the mobile phone 200. The control unit 201 of the mobile phone 200 displays the screen illustrated in FIG. 6B when the digital camera 100 shifts to the remote shooting mode. In FIG. 6B, a live image 603, a subject 604, a shooting instruction button 605, and a setting switching button 606 are displayed.

The shooting instruction button 605 is a button that is selected when it is desired to instruct the digital camera 100 to perform shooting. When the shooting instruction button 605 is selected, the control unit 201 of the mobile phone 200 transmits a shooting instruction to the digital camera 100, and the control unit 101 of the digital camera 100 performs still image shooting according to the shooting instruction.
The setting switch button 606 is a button that is selected when it is desired to instruct the digital camera 100 to switch the parameter relating to shooting. The shooting-related parameters include zoom position, white balance value, corrected exposure value, my color setting value, aspect value, and ISO value. The parameters relating to shooting include, for example, a strobe light emission value, strobe light on / off, AE / AF lock on / off, self-timer time, self-timer volume, and shutter volume.

  As described above, according to the present embodiment, when remote shooting is performed from the mobile phone 200 to the digital camera 100, the live image is displayed on the display unit 206 of the mobile phone 200 after the zoom position is restored. Can be displayed without discomfort.

(Second Embodiment)
In the present embodiment, the case of changing the timing between the extension of the lens barrel and the start of display of the live image in the normal shooting mode and the custom shooting mode will be described with reference to the flowchart of FIG.
<Normal shooting mode and custom shooting mode>
FIG. 7 is a flowchart showing processing of the digital camera 100 when the normal shooting mode or the custom shooting mode is set and activated.

First, the processing of the digital camera 100 when it is set to the normal shooting mode and activated will be described.
In step S701, the control unit 101 of the digital camera 100 determines whether the startup mode is the custom shooting mode. If the mode is the custom shooting mode, the process proceeds to step S702. If the mode is different from the custom shooting mode, the process proceeds to step S706. Here, since the normal shooting mode is set, the process proceeds to step S706.

In step S706, the control unit 101 generates a live image from the image captured by the imaging unit 102. The control unit 101 starts displaying the generated live image on the display unit 106.
In step S707, the control unit 101 extends the lens barrel retracted to the camera body to the zoom position (wide-angle end) where the lens barrel is extended during normal activation. The processing when starting in the normal shooting mode is completed by the above-described processing.

Next, processing of the digital camera 100 when the custom shooting mode is set and activated will be described. Here, it is assumed that the zoom position at the time of activation is stored in the non-volatile memory 103 as a parameter relating to photographing that is automatically set.
In step S701, the control unit 101 of the digital camera 100 determines whether the startup mode is the custom shooting mode. Here, since the custom shooting mode is set, the process proceeds to step S702.

In step S <b> 702, the control unit 101 determines whether the zoom position at startup is stored in the nonvolatile memory 103. Here, since the zoom position is stored in advance, the process proceeds to step S703.
In step S <b> 703, the control unit 101 generates a live image from the image captured by the imaging unit 102. The control unit 101 starts displaying the generated live image on the display unit 106.

In step S704, the control unit 101 extends the lens barrel retracted to the camera body to the zoom position (wide angle end) where the lens barrel is normally extended.
In step S705, the control unit 101 extends the lens barrel to a previously stored zoom position. Since the control unit 101 has already started displaying a live image on the display unit 106 in step S703, the live image until the lens barrel is extended to the stored zoom position is displayed on the display unit 106. .
As described above, according to the present embodiment, the normal shooting mode or the custom shooting mode is set, and the live image is displayed before the barrel is extended when the camera is started, thereby shortening the time until the live image is displayed. can do.

(Third embodiment)
In the present embodiment, the case of increasing the timing for displaying a live image when shifting to the remote shooting mode will be described with reference to the flowchart of FIG. 8 and FIG. Although description is omitted in the above-described embodiment, when generating a live image, the control unit 101 generates a live image after setting all parameters related to shooting in the control unit 101 itself or the imaging unit 102. . In this embodiment, not all the parameters related to shooting are set at the same timing, but parameters that change the live image among the parameters related to shooting are set in advance to shorten the time until the live image is displayed. .

<Remote mode>
FIG. 8 is a flowchart showing processing of the digital camera when the remote mode is set.
Since the processing from step S801 to step S803 is the same as the processing from step S501 to step S503 in FIG. 5 in the first embodiment, the description thereof is omitted.

In step S <b> 804, the control unit 101 determines whether the zoom position at startup is stored in the nonvolatile memory 103. If the zoom position is stored, the process proceeds to step S805. If the zoom position is not stored, the process proceeds to step S809.
In step S805, the control unit 101 extends the lens barrel retracted to the camera body to the zoom position (wide angle end) that is normally extended at the time of activation.
In step S806, the control unit 101 sets the shooting-related parameters in advance that affect the display of the live image. The parameter that affects the display of the live image is a parameter that changes the live image, and will be specifically described later with reference to FIG. Here, since the parameter that affects the display of the live image includes the zoom position, the control unit 101 extends the lens barrel to the previously stored zoom position. Note that if there is a parameter stored in advance other than the zoom position among parameters that affect the display of the live image, the control unit 101 sets the stored parameter.

FIG. 9 is a diagram illustrating an example of parameters that affect the display of a live image and parameters that do not affect the live image.
The parameters that affect the display of the live image include at least one of a zoom position, a white balance value, an exposure correction value, a my color setting value, an aspect value, and the like. Note that the my color setting value is a parameter value for setting the color tone or partial color of the entire image, and can be switched between monochrome, sepia, monochrome, and the like.
On the other hand, parameters that do not affect the display of live images include at least one of ISO value, strobe emission value, strobe emission on / off, AE / AF lock on / off, self-timer time, self-timer volume, and shutter volume. included.

In step S <b> 807, the control unit 101 generates a live image via the imaging unit 102. The control unit 101 transmits the generated live image to the mobile phone 200 via the connection unit 111, so that the mobile phone 200 starts displaying the live image.
In step S808, the control unit 101 sets parameters that do not affect the live image. Thereafter, the control unit 101 sets the remote shooting mode and ends the process. If there is a parameter stored in advance among parameters that do not affect the display of the live image, the control unit 101 sets the stored parameter.

  On the other hand, if it is determined in step S804 that the zoom position is not stored, the process proceeds to step S809. The processing from step S809 to step S812 is the same as the processing from step S805 to step S808. However, since the zoom position is not stored, in step S810, the control unit 101 sets parameters that affect the live image in advance, excluding the zoom position.

  As described above, according to the present embodiment, since the live image is displayed on the display unit 206 of the mobile phone 200 after the parameters that affect the display of the live image are set in advance, the live image is displayed without a sense of incongruity. be able to. In addition, it is possible to shorten the time until the live image is displayed on the display unit 206 of the mobile phone 200.

Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. A part of the above-described embodiments may be appropriately combined.
The present invention can also be realized by executing the following processing. That is, a program that realizes the functions of the above-described embodiments is supplied to an imaging apparatus or a portable terminal via a network or various storage media, and a computer (such as a control unit) of the imaging apparatus or the portable terminal reads out and executes the program. It is processing.

  The control unit 101 of the digital camera 100 may display the live image on the display unit 106 of the digital camera 100 when transmitting the generated live image to the mobile phone 200 via the connection unit 111.

Claims (7)

An imaging apparatus that transmits a live image to a portable terminal and shoots through an imaging unit according to a shooting instruction from the portable terminal,
Storage means for storing a zoom position when the lens barrel is extended before wireless communication is started with the portable terminal;
When starting wireless communication with the portable terminal, a barrel control means for retracting the fed barrel,
A setting means for setting a zoom position stored by the storage means as a parameter relating to photographing after wireless communication is started with the portable terminal;
Generating means for generating a live image via the imaging means after the zoom position is set by the setting means;
An imaging apparatus comprising: a wireless communication unit that transmits a live image generated by the generation unit to the portable terminal. The imaging apparatus according to claim 1 , wherein the setting unit sets a parameter that does not affect the display of the live image after the live image is transmitted by the wireless communication unit. The parameter that does not affect the display of the live image is at least one of ISO value, strobe emission value, strobe emission on / off, AE / AF lock on / off, self-timer time, self-timer volume, and shutter volume. The imaging apparatus according to claim 2 , wherein: Imaging device, wherein when it is moved to another mode is controlled in accordance with an instruction from the portable terminal, any one of 3 claims 1, characterized in that the communication is started between the mobile terminal The imaging apparatus according to item 1. If the imaging device, wherein a mode that is not wireless communication with the portable terminal, a mode for automatically setting the parameters on imaging stored by said storing means,
The setting means, after the live image has been generated by the generation unit, the imaging apparatus according to any one of claims 1 to 4 and sets the stored parameters. A method for controlling an imaging apparatus that transmits a live image to a portable terminal and shoots through an imaging unit according to a shooting instruction from the portable terminal,
A storage step of storing a zoom position when the lens barrel is extended before wireless communication with the portable terminal is started;
When starting wireless communication with the portable terminal, the lens barrel control step for retracting the lens barrel that has been drawn out,
A setting step for setting the zoom position stored by the storage step as a parameter relating to shooting after wireless communication is started with the portable terminal;
A generation step of generating a live image through the imaging means after the zoom position is set by the setting step;
And a wireless communication step of transmitting the live image generated by the generation step to the portable terminal. A program for controlling an imaging device that transmits a live image to a portable terminal and shoots through an imaging unit according to a shooting instruction from the portable terminal,
A storage step of storing a zoom position when the lens barrel is extended before wireless communication with the portable terminal is started;
When starting wireless communication with the portable terminal, the lens barrel control step for retracting the lens barrel that has been drawn out,
A setting step for setting the zoom position stored by the storage step as a parameter relating to shooting after wireless communication is started with the portable terminal;
A generation step of generating a live image through the imaging means after the zoom position is set by the setting step;
A program for causing a computer to execute a wireless communication step of transmitting the live image generated by the generation step to the portable terminal.

Images