JP4771481B2 - Remote shooting system, portable terminal and computer program - Google Patents

Description

  The present invention relates to a remote photographing system, a portable terminal, and a computer program that are constituted by a photographing camera terminal and an operation / confirmation terminal.

  Conventionally, when taking a group photo as shown in FIG. 1, in order to copy all members as shown in FIG. 2 (a), it is generally performed by handing over a camera terminal to a third party. .

  However, there is not always an appropriate third party when shooting is required. In addition, when shooting by a third party, the shutter timing, frame, person size, and the like may not be as intended by the member.

  When a third party cannot use, as shown in FIG. 2B, one of the members becomes a photographer, or as shown in FIG. 6, a timer function is used to shoot without a photographer. Is common.

  However, when one of the members becomes a photographer, it is not possible to shoot with all the members. When using the timer function, the position of the camera terminal may be shifted after setting the timer, the operator may not be in time, it is difficult to fit in the frame in the state that the timer operator intended in the captured image, There is a problem that it is difficult for the person to be photographed to know the timing until photographing.

  As one method for solving the above problem, there is a camera device having a remote shutter button device using a remote controller (remote controller) using infrared rays or wireless (refer to Patent Document 1 for wireless).

  There is also known one that can relatively rotate a lens unit of a camera and a monitor unit that is a captured image display unit. Such an apparatus can shoot while watching itself on a monitor.

There has also been proposed a video camera having a configuration in which a video camera and a liquid crystal monitor that displays a captured image are separated and connected to each other by a code line (cable) (see Patent Document 2). In this apparatus, the operation can be performed by a remote operation unit attached to the liquid crystal monitor.
Utility Model Registration No. 3095284 Utility Model Registration No. 3106077

  Although the device using the remote control can shoot at the intended timing, it does not know until the user confirms whether or not the captured image is the intended one, even if it is not intended. In this case, it is necessary to repeat the process of confirming the image by taking another picture.

  If the lens unit and the monitor unit can rotate relative to each other, the user himself / herself extends his / her hand to perform the operation, and thus can only shoot at a close distance within the reach of the hand.

  In the apparatus disclosed in Patent Document 2, since the camera body and the liquid crystal monitor are connected by a cord line, handling is inconvenient, and the shooting distance is limited by the length of the cord line. The apparatus described in Patent Document 2 is for enabling the photographed image to be confirmed by the photographer even when photographing with the camera body separated from the photographer's body. The length of the code line is not envisaged so that it can be photographed. Even if the code line is lengthened, it is not realistic that a long code line extends from the photographer to the camera body, which may interfere with others.

  The present invention has been made in such a background, and in remote shooting, the state of the subject to be shot is in an intended state without using a cord line connecting the camera unit and the display unit. It is intended to be able to take a picture after confirming.

  A remote photographing system according to the present invention is a remote photographing system including a photographing camera terminal having a camera unit and an operation / confirmation terminal having a display unit and an operation unit, the photographing camera terminal and the operation / confirmation terminal. Establishes a communication path between each other via a wireless interface, and the imaging camera terminal transmits image data obtained from the camera unit to the operation / confirmation terminal via the communication path. When the operation information is received, the camera unit is controlled according to the operation information, and the operation / confirmation terminal receives the image data and displays it on the display unit, and the operation information is transmitted through the communication path according to the operation from the operation unit. Via the camera terminal.

  The shooting camera terminal and the operation / confirmation terminal establish a communication path via a wireless interface, and transmit the image data obtained from the camera unit of the photographing camera terminal to the operation / confirmation terminal. Is displayed, the user of the operation / confirmation terminal can remotely operate the camera unit while confirming the image of the subject.

  Further, in such a remote photographing system, a portable terminal having a camera photographing function and a wireless communication function includes a camera unit, an operation unit that receives a user operation, a display unit that displays information, and an external device via a wireless interface. A wireless communication unit that communicates with a terminal, a mode selection unit that selects a host mode that operates as a photographing terminal during remote photographing, a guest mode that operates as a terminal for operation and confirmation, and a control unit are provided. In the host mode, the control unit waits for access from the guest terminal operating in the guest mode via the wireless interface, and when there is an access from the guest terminal, the monitor image data obtained from the camera imaging unit Is transmitted to the guest terminal, and when the operation information is received from the guest terminal, the camera unit is controlled according to the operation information, and in the guest mode, the image data is transmitted from the host terminal operating in the host mode via the wireless interface. The information is received and displayed on the display unit, and operation information is transmitted to the host terminal according to the operation from the operation unit.

  This portable terminal can operate as an operation / confirmation terminal even when it does not have a camera function.

  A computer program according to the present invention is a computer program that supports remote shooting via a wireless interface in a portable terminal having a camera shooting function and a wireless communication function, and is used as a shooting terminal during remote shooting according to a user instruction. A step of selecting an operating host mode and a guest mode operating as a terminal for operation and confirmation; and a step of waiting for an access from a guest terminal operating in the guest mode via the wireless interface in the host mode And in the host mode, transmitting monitor image data obtained from the camera imaging unit to the guest terminal; in the host mode, when receiving operation information from the guest terminal, controlling the camera unit according to the operation information; In guest mode, wireless Receiving image data from the host terminal operating in the host mode via the interface and displaying the image data on the display unit; and transmitting operation information to the host terminal according to the operation from the operation unit in the guest mode. And let the computer run.

  According to the present invention, in remote shooting, shooting is performed by confirming that the subject to be shot is in the intended state without using a code line connecting the camera unit and the display unit. Can do.

  In addition, when implementing the functions, it is possible to realize the functions with only software resources by using existing hardware devices.

  By defining a protocol between terminals, it can be implemented in an application layer such as a mobile phone terminal, and compatibility and connectivity can be maintained even between terminals with different carriers (carriers).

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to other drawings.

  In the present invention, a terminal that captures a camera (referred to as a “capturing camera terminal”) and a terminal that performs operations and confirmation during camera capture (referred to as an “operation / confirmation terminal”) are independent terminal devices. However, if the terminal has a camera photographing function, a monitor display function, and a wireless communication function, one terminal can be either a photographing camera terminal or an operation / confirmation terminal. As such a terminal, there are a mobile phone terminal with a camera, a digital camera with a communication function, and the like.

  In addition, as a wireless interface between the photographing camera terminal and the operation / confirmation terminal, a wireless LAN, Bluetooth (registered trademark), cellular phone line communication, or the like can be used. Furthermore, as a form of communication between the photographing camera terminal and the operation / confirmation terminal, there can be one-to-one communication and one-to-n communication (n is a plurality). Furthermore, direct communication in which communication is performed directly between terminals and indirect communication in which a relay system such as an access point or a base station is interposed are considered.

  FIG. 4 shows a configuration example of a remote photographing system for direct one-to-one communication between terminals between the photographing camera terminal 10 and the operation / confirmation terminal 20. Such direct communication is realized in an ad hoc communication mode that does not use an access point in the case of a wireless LAN. In this example, the case where any terminal is a mobile phone terminal is shown. This remote shooting system is separated from the shooting camera terminal 10, which is a camera-equipped terminal for shooting with the camera lens unit facing the subject (the photographer himself in the case of a group photo). And an operation / confirmation terminal 20 for confirming and operating a photographed image from a place. The user receives the image information of the camera through image obtained from the photographing camera terminal 10 at the operation / confirmation terminal 20 and displays it on the display screen (monitor screen), which corresponds to pressing the shutter button at the operation / confirmation terminal. Operation information for performing an instruction operation such as capture is transmitted to the photographing camera terminal 10. Types of instruction operations include camera setting change operations and shooting operations. The camera setting change operation includes scene selection change, EV correction setting change, white balance setting change, and the like. The shooting operation includes AF scan, zoom, capture, and the like.

  Since the photographer can remotely confirm and operate the camera-through image at the photographing camera terminal 10 with the operation / confirmation terminal 20, the photographer can photograph a subject in a desired mode at a desired timing.

  FIG. 5 shows a configuration example of a remote photographing system for direct one-to-n communication between terminals between the photographing camera terminal 10 and a plurality of (in this case, three) operation / confirmation terminals 20a, 20b, and 20c. In this configuration, when taking a group photo, a plurality of members can confirm and operate on their own terminals. The operation is a mode in which each of the operation / confirmation terminals 20a to 20c individually communicates directly with the photographing camera terminal 10 and is basically the same as the operation of FIG.

  FIG. 6 shows a configuration example of a remote photographing system for indirect one-to-one communication between terminals between the photographing camera terminal 10 and the operation / confirmation terminal 20. In the case of indirect communication, a relay system is interposed between both terminals. In this example, base stations 30 and 34 of a mobile phone network and a provider server 32 are interposed as the relay system. The relay system may be a network using an infrastructure mode using a wireless LAN access point. The roles of the photographing camera terminal 10 and the operation / confirmation terminal 20 are the same as in direct one-to-one communication.

  FIG. 7 shows a configuration example of a remote photographing system for indirect inter-terminal 1-to-n communication between the photographing camera terminal 10 and a plurality (three in this case) of operation / confirmation terminals 20a, 20b, and 20c. The operation of this system is a mode in which each of the operation / confirmation terminals 20a to 20c individually performs indirect one-to-one communication with the photographing camera terminal 10, and is basically the same as the operation of FIG.

  FIG. 8 shows a hardware configuration example of a terminal device that can be used for either the photographing camera terminal 10 or the operation / confirmation terminal 20. The control unit 101 is a part for controlling each unit of the terminal or executing necessary processing via the bus 108 or the like, and can be configured by a CPU (Central Processing Unit) or the like. The storage unit 102 includes an area for storing a computer program and data used by the control unit 101, a work area, a temporary storage area, and the like. ROM (Read Only Memory), RAM (Random Access Memory), flash memory, HDD (Hard Disc Drive) and the like. The display unit 103 is a part that displays arbitrary information such as text, a still image, and a moving image to the user, and can be configured by a display device such as an LCD (Liquid Crystal Display) or an organic EL. The operation unit 104 is a part for the user to input instructions and data to the terminal, and can be configured by various operation keys, buttons, and the like. The wireless communication unit 105 is a part for a terminal to communicate with the outside via a wireless interface. As described above, a mobile phone wireless communication unit, a wireless LAN, Bluetooth (registered trademark), or the like can be used. it can. The wireless communication unit may include any plurality of these plurality of wireless interfaces at the same time.

  FIG. 9 shows an example of photographing by direct one-to-one communication. The photographing camera terminal 10 sets the camera-equipped terminal to the host mode and fixes it appropriately toward the subject (the photographer himself in the case of a group photo). The operation / confirmation terminal 20 sets the mobile phone terminal in the guest mode, receives the image information of the camera through image obtained by the user from the photographing camera terminal 10, displays it on the display screen, captures, and the various types described above. An instruction command for the operation is transmitted to the photographing camera terminal 10. Note that the lateral displacement of the subject within the shooting frame can be corrected by the user changing the standing position, but if the shooting camera terminal 10 has a function for controlling the orientation of the camera, Such control can also be performed from the operation / confirmation terminal 20 side.

  FIG. 10 shows an example of photographing by direct or indirect one-to-n communication. In this case, the camera through image of the photographing camera terminal 10 is displayed on the display screens of all the operation / confirmation terminals 20a to 20c. A plurality of users possessing operation / confirmation terminals can each operate the photographing camera terminal 10.

  FIG. 11 shows an example of photographing by one-to-n communication similar to FIG. 10, but a digital camera with a communication function is used as the photographing camera terminal 10 instead of a camera-equipped mobile phone terminal. Moreover, the example using the digital camera with a communication function is also shown as the operation / confirmation terminal 20c.

  Next, an operation example of each terminal of the remote photographing system in the present embodiment will be described with reference to a flowchart. In this specification, the user can selectively set whether one terminal is used as a photographing camera terminal or an operation / confirmation terminal. An operation mode for operating as a photographing camera terminal is called a host mode, and a terminal in which this mode is set is called a host terminal. Similarly, an operation mode for operating as an operation / confirmation terminal is called a guest mode, and a terminal in which this mode is set is called a guest terminal.

  FIG. 12 shows a processing flow of a communication start sequence between the host terminal and the guest terminal. This process is realized by the control unit executing a computer program. The same applies to other processes described later. An example of direct communication will be described as an example of communication. Although not shown in particular, in the case of indirect communication, a terminal as a communication partner is registered in advance, and the partner terminal is accessed via the relay system as described above to establish a communication path between both terminals. Can do.

  A terminal that has received a predetermined operation (for example, menu selection, predetermined button instruction, etc.) by the user sets a remote shooting host mode (S11). As a result, the terminal executes the following communication start sequence as a host terminal, that is, a photographing camera terminal.

  Similarly, the terminal that has received a predetermined operation by the user sets the remote shooting guest mode (S21). Thus, the terminal executes the following communication start sequence as a guest terminal, that is, an operation / confirmation terminal.

  The host terminal waits for access from the guest terminal (S12). The guest terminal can search (detect) the presence of the host based on a signal (for example, a beacon signal) output from the host terminal. If the guest terminal is within a communicable range with the host terminal, the guest terminal detects the presence of the host (S23). Further, the host terminal performs an approval / registration operation of the guest terminal based on the signal output from the guest terminal (S13). As a result, a communication path for data communication between each other is established via the wireless interface. At this time, it is also possible to restrict communication only between predetermined terminals.

  If the host is not detected within a predetermined time in the host search in the guest terminal (S25, Yes), it is determined that a timeout has occurred and the host search failure is displayed (S26), and the processing of the guest terminal is terminated.

  When the communication path between both terminals is established, the host terminal activates the camera unit and starts transmitting the camera through image acquired from the camera unit to the guest terminal as image data to the guest terminal (S14).

  The guest terminal waits for image data of the camera through image from the host terminal (S24).

  Thereafter, the host terminal and the guest terminal end the communication start sequence for remote shooting.

  FIG. 18 shows a processing flow of a remote shooting sequence for performing remote shooting between the host terminal and the guest terminal.

  The host terminal as the photographing camera terminal captures an image from the camera unit (S91), and generates an image to be transmitted to the guest terminal (such as superimposition of operation guide images) (S92). Next, the transmission image is transmitted to the guest terminal (S93).

  The guest terminal as the operation / confirmation terminal displays the camera captured image and the operation guide image received from the host terminal on the display unit (S101). Thereafter, if there is an operation input by the user (S102, Yes), the operation information is transmitted to the host terminal (S103).

  When receiving the operation information from the guest terminal, the host terminal determines that “there is an operation request” (S94, Yes), and performs processing according to the operation request (S95). When there is an operation for terminating the operation as the photographing camera terminal (S96, Yes), the host terminal terminates the remote photographing sequence.

  When there is an operation for ending the operation as the operation / confirmation terminal (S104, Yes), the guest terminal ends the remote imaging sequence.

  FIG. 13 shows a processing flow of a communication end sequence for ending communication from the guest terminal between the host terminal and the guest terminal.

  In the guest terminal, when a communication end declaration is made to the host terminal by the user's operation (S41), the host terminal receives this (S31), and sends a communication stop response to the end target terminal (S32). When the guest terminal receives this response (S42, Yes), the communication operation with the guest terminal is terminated (S44). At this time, a predetermined end display for the user is performed on the display unit (S45), and this process is terminated. Also in step S42, when a time-out occurs (S43, Yes), the process proceeds to step S44.

  Thereafter, when the number of guest terminals in communication becomes zero (S33, Yes), the host terminal displays an end (S34) and ends this communication. If the number of guest terminals in communication is not zero, the end display is not performed.

  FIG. 14 shows a processing flow of a communication end sequence when communication is cut off from the host terminal between the host terminal and the guest terminal.

  When the host terminal receives an operation from the user to end the operation as a remote photographing host terminal (S51), the host terminal transmits a communication end declaration to all guest terminals communicating with itself (S52).

  When the guest terminal receives a communication end declaration during display of the camera-through image transmitted from the host terminal (S61) (S62), it sends an end reception response to the host terminal (S63). Next, the communication operation with the host terminal is terminated (S64), a termination display is given to the user (S65), and this process is terminated.

  If there is a response from all the guest terminals in communication (S53, Yes), the host terminal displays an end display to the user (S55) and ends this process. When no response is obtained from any guest terminal, it is determined that a timeout has occurred when a predetermined time has elapsed (S54, Yes), and the process proceeds to step S55.

  FIG. 15 shows a processing flow of a communication error processing sequence between the host terminal and the guest terminal.

  When a communication failure occurs during communication between the host terminal and the guest terminal, the following processing is performed.

  The host terminal performs a recovery retry process for the guest terminal in which the communication error has occurred (S71). If the communication is restored (S72, Yes), this process is terminated. If the communication is not recovered, the recovery retry process is repeated until a predetermined time elapses. When the predetermined time elapses, it is determined that a time-out occurs (S73), and the process proceeds to the next step. In the next step S74, if the number of guest terminals in communication is zero, an end display is performed (S75), and this process ends. If the number of guest terminals in communication is not zero, the end display is not performed.

  The guest terminal performs a communication recovery retry process (S81). If the communication is restored (S82, Yes), this process is terminated. If the communication does not recover, the recovery retry process is repeated until a predetermined time elapses. When the predetermined time elapses, it is determined that a time-out occurs (S83, Yes), and an error end display is displayed to the user (S84). Exit.

    Next, means for simplifying user operations during remote shooting will be described with specific examples. This means is not essential in the present invention, but can improve the user interface.

  As shown in FIG. 16, an image of shooting guide information stored in advance in the storage unit of the host terminal is superimposed on the camera through image 41 acquired by the host terminal and transmitted to the guest terminal. As the shooting guide information, in this example, an operation guide information image 43 in the shooting operation mode and an operation guide information image 45 in the setting operation mode are prepared. Superposed images 47 and 49 are obtained. The default operation mode in the present embodiment is the shooting operation mode.

  In the illustrated example, the operation guide information image 43 has an operation unit including a ring-shaped cursor movement key (that is, a cross key) 51, a center determination key 52, and a clear key 53 as shown in FIG. It corresponds to the guest terminal. In a guest terminal that does not have such an operation unit, as shown in FIG. 17B, the operation unit shown in FIG. It is possible to perform an equivalent operation.

  Returning to FIG. 16, the user of the guest terminal refers to the operation guide information image 43 in the superimposed image 47 displayed on the display unit so as to be superimposed on the camera through image, and uses the ring-shaped cursor movement key 51 of the operation unit. Corresponding to the center determination key 52, various operations in the shooting operation mode, here, AF selection / cancellation, reduction / enlargement, and shooting (capture) can be performed. The mode can be switched corresponding to the clear key 53.

  In addition, when the user gives an instruction for “mode switching”, the operation command is transmitted to the host terminal, and the host terminal sets the setting operation mode from the operation guide information image 43 in the shooting operation mode as an image to be superimposed on the camera through image. Switch to the operation guide information image 45 at the time. As a result, the superimposed image 49 is displayed on the display unit of the guest terminal. In this example, the setting items (AF Mode, WB, exposure correction, etc. in the example in the figure) are switched by the instruction operation in the horizontal direction, and the setting contents in each setting item are switched by the instruction operation in the vertical direction. Yes.

  When the user finishes the setting operation (for example, presses the enter key), the operation guide information image returns to the operation guide information image 43 in the shooting operation mode.

  In order to effectively interpret and execute the operation of the operation unit corresponding to the operation guide information, the guest terminal has each element of the operation unit of the own terminal (cursor movement key, enter key, clear key, numeric keypad) in each operation mode. Etc.), definition information defining the operation content to be assigned is stored in advance. Alternatively, such definition information may be transmitted from the host terminal after the communication path with the host terminal is established, and received and used by the guest terminal. In the latter case, when the definition information varies depending on the terminal model, the guest terminal can cope with the camera function of the host terminal.

  According to the operation guide information display means, the user of the guest terminal can easily perform the desired operation without storing the operation contents by viewing the operation guide information image displayed on the camera through image. be able to. In particular, the user's operation is facilitated by unifying the operation guide information image regardless of the camera terminal model. Although the host terminal may not be a terminal owned by the guest terminal user, even in such a case, it is not necessary to know the actual operation method related to the camera of the host terminal.

  The preferred embodiments of the present invention have been described above, but various modifications and changes other than those mentioned above can be made. For example, the operation guide information image is displayed so as to be superimposed on the camera-through image, but may be temporarily displayed instead of the camera-through image.

  Even if the portable terminal does not have a camera photographing function, the portable terminal having a wireless communication function cannot operate as a host terminal, but can operate as a guest terminal.

It is explanatory drawing for demonstrating the background art of this invention. It is explanatory drawing for demonstrating the background art of this invention. It is explanatory drawing for demonstrating the background art of this invention. It is a figure which shows the structural example of the remote imaging | photography system of direct one-to-one communication between terminals in embodiment of this invention. It is a figure which shows the structural example of the remote imaging | photography system of direct 1 to n communication between terminals in embodiment of this invention. It is a figure which shows the structural example of the remote imaging | photography system of the indirect one-to-one communication between terminals in embodiment of this invention. It is a figure which shows the structural example of the remote imaging | photography system of the indirect 1 to n communication between terminals in embodiment of this invention. It is a block diagram which shows the hardware structural example of the terminal device which can be utilized for both an imaging | photography camera terminal and an operation and confirmation terminal in embodiment of this invention. It is a figure which shows the example of imaging | photography by one-to-one communication in embodiment of this invention. It is a figure which shows the example of imaging | photography by 1 to n communication in embodiment of this invention. It is a figure which shows the example of imaging | photography by 1 to n communication in embodiment of this invention. It is a figure which shows the processing flow of the communication start sequence between a host terminal and a guest terminal in embodiment of this invention. It is a figure which shows the processing flow of the communication end sequence which complete | finishes communication from a guest terminal between a host terminal and a guest terminal in embodiment of this invention. It is a figure which shows the processing flow of the communication end sequence in the case of interrupting | blocking communication from a host terminal between a host terminal and a guest terminal in embodiment of this invention. It is a figure which shows the processing flow of the communication error processing sequence between the host terminal and guest terminal in embodiment of this invention. It is a figure which shows a mode that the image of imaging | photography guide information is superimposed on the camera through image, and is transmitted to a guest terminal in embodiment of this invention. It is a figure which shows the structural example of the operation part of a terminal. It is a figure which shows the processing flow of the remote imaging | photography sequence which performs remote imaging | photography between a host terminal and a guest terminal in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Photographing camera terminal, 20, 20a, 20b, 20c ... Operation / confirmation terminal, 30, 34 ... Base station, 32 ... Provider server, 41 ... Camera through image, 43 ... Operation guide information image in photographing operation mode, 45: Operation guide information image in the setting operation mode, 47, 49 ... Overlapped image, 101 ... Control unit, 102 ... Storage unit, 103 ... Display unit, 104 ... Operation unit, 105 ... Wireless communication unit, 108 ... Bus

Claims (7)

A remote shooting system comprising a shooting camera terminal provided with a camera unit and an operation / confirmation terminal provided with a display unit and an operation unit,
The shooting camera terminal and the operation / confirmation terminal establish a communication path between each other via the wireless interface.
The photographing camera terminal transmits the operation guide information image data together with the monitor image data obtained from the camera unit to the operation / confirmation terminal via the communication path, and receives the operation information from the operation / confirmation terminal. Control the camera part according to
The operation / confirmation terminal receives the monitor image data and the operation guide information image , displays the operation guide information image on the monitor image and displays the operation guide information image on the display unit, and displays the operation information according to an operation from the operation unit. A remote photographing system, wherein the remote photographing system transmits to the photographing camera terminal via the communication path. A portable terminal having a camera photographing function and a wireless communication function,
A camera unit;
An operation unit that receives user operations;
A display for displaying information;
A wireless communication unit that communicates with an external terminal via a wireless interface;
Mode selection means for selecting a host mode that operates as a terminal for photographing during remote shooting and a guest mode that operates as a terminal for operation and confirmation;
A storage unit for storing image data of an operation guide information image representing the operation guide information of the camera unit of the own terminal;
A control unit,
The control unit, in the host mode, via the wireless interface, and waits for access from the guest terminals operating in the guest mode, when there is access by the guest terminal, a monitor image data obtained from the camera unit When the operation guide information image data is transmitted to the guest terminal and the operation information is received from the guest terminal, the camera unit is controlled according to the operation information, and in the guest mode, the host operating in the host mode via the wireless interface Receiving the image data from a terminal , superimposing the operation guide information image on the monitor image, displaying the image on the display unit, and transmitting operation information to a host terminal in response to an operation from the operation unit. Mobile terminal. 3. The mobile phone according to claim 2, wherein the operation guide information image is an image that provides operation guide information of the camera unit to a user who operates the operation unit of the guest terminal, regardless of a model of the terminal. Terminal. The operation guide information image represents at least one of AF (AutoFocus) selection / cancellation and reduction / enlargement as a shooting operation and a shooting (capture) operation in association with keys of the operation unit. The portable terminal according to claim 3, wherein The operation guide information image includes a first image for the photographing operation and a second image for a setting operation including at least one of AF mode, white balance, and exposure correction, and the control unit The portable terminal according to claim 4, wherein the first and second images are switched and displayed according to a user instruction. Wherein in the guest mode, it received from the terminal operating the definition information which defines the operation content assigned to each element of the operating portion of the terminal in the host mode, the control part, based on the definition information in the guest mode 6. The portable terminal according to claim 4 , wherein the operation of the operation unit corresponding to the operation guide information is interpreted and executed. A computer program for supporting remote photographing via a wireless interface in a portable terminal having a camera photographing function and a wireless communication function,
In accordance with a user instruction, selecting either a host mode that operates as a terminal for shooting during remote shooting or a guest mode that operates as a terminal for operation and confirmation;
In host mode, waiting for access from a guest terminal operating in guest mode via a wireless interface;
In host mode, transmitting operation guide information image data together with monitor image data obtained from the camera unit to the guest terminal;
In host mode, when receiving operation information from the guest terminal, controlling the camera unit according to the operation information;
In guest mode, receiving operation guide information image data together with monitor image data from a host terminal operating in the host mode, superimposing the operation guide information image on the monitor image, and displaying on the display unit;
A computer program that causes a computer to execute the step of transmitting operation information to a host terminal in response to an operation from an operation unit in guest mode.