JP5361973B2 - IMAGING DEVICE, ITS CONTROL METHOD, PROGRAM, AND STORAGE MEDIUM - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging device capable of widely displaying an image photographed by electronic zooming by a predetermined amount in photographing confirmation, and selecting a recording image area within its range. <P>SOLUTION: An imaging device comprises: display means (an image display part 28) for displaying a photographed image based on output from an imaging element; instruction means (an operation part 74) for instructing to record the photographed image; and determination means (a system control circuit 50, the operation part 74) for determining a range of displaying the photographed image. Furthermore, the imaging device comprises control means (the system control circuit 50) for displaying the image in the range at a second field angle larger than the range at a first field angle displayed in the display means prior to the instruction, accompanying a recording instruction by the instruction means. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

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

  2. Description of the Related Art Conventionally, there is a technique in an imaging apparatus that records at least a range wider than the angle of view set by the zoom range means during electronic zoom (see, for example, Patent Document 1).

JP 2005-12423 A

  However, the above prior art has a problem that the user cannot record at a desired angle of view. That is, when shooting with the electronic zoom, there is a problem in that shooting at a desired angle of view becomes impossible as the magnification becomes higher due to camera shake or the like.

  An object of the present invention is to provide an imaging apparatus, a control method thereof, a program, and a storage medium that allow a user to arbitrarily set a recording area.

In order to achieve the above object, an imaging apparatus according to the present invention includes a display unit that displays a captured image based on an output from an image sensor, an instruction unit that instructs recording of the captured image, and a recording instruction by the instruction unit. after accompanied intends shooting, the display on the display means an image of a range of the second angle larger than the range of the first field angle that has been displayed before the instruction on the display means as an image corresponding to the captured In addition, the second field angle range is changed based on the presence or absence of blur correction and displayed on the display unit, and the image range corresponding to the image to be recorded from the image within the second field angle range. Change means capable of changing from the range of the first angle of view, and a record for recording an image corresponding to the range of the first angle of view or an image corresponding to the image range changed by the change means as a captured image further comprising a means, And features.

According to the present invention, the user is able to select an arbitrary recording angle from the angle of view by Li Guang have angle at the time of shooting.

1 is a block diagram illustrating an overall configuration of an imaging apparatus according to an embodiment of the present invention. 3 is a flowchart illustrating a procedure of overall control processing executed by the imaging apparatus of FIG. 1. 3 is a flowchart illustrating a procedure of overall control processing executed by the imaging apparatus of FIG. 1. It is a flowchart which shows the 1st procedure of the recorded image change operation process performed by step S125 of FIG. FIG. 4 is a diagram showing a display screen of the image display unit in FIG. 1 during a recorded image change operation process in the flowchart of FIG. 3. It is a flowchart which shows the procedure of the distance measurement and photometry process performed by step S111 of FIG. It is a flowchart which shows the procedure of the imaging | photography process performed by step S112 of FIG. It is a flowchart which shows the 2nd procedure of the recorded image change operation process performed by step S125 of FIG. It is a figure which shows the display screen of the image display part in FIG. 1 at the time of the recording image change operation process in the flowchart of FIG. It is a figure which shows the display screen of the image display part in FIG. 1 at the time of the recording image change operation process in the flowchart of FIG.

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

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

  FIG. 1 is a block diagram showing an overall configuration of an imaging apparatus according to an embodiment of the present invention.

  In FIG. 1, an imaging apparatus 100 according to the present embodiment includes the following components centering on a system control circuit 50. Hereinafter, the component will be described together with the operation.

  The photographing lens 10 is a four-group inner focus zoom lens that includes a fixed lens 11, a variable magnification lens 12 </ b> A, a correction lens 12 </ b> B, and a focus lens 13. Although not shown, the variable magnification lens 12A and the correction lens 12B are configured to move along the optical axis while changing the positional relationship between them by a cam mechanism and change the focal length. The zoom lens 12A and the correction lens 12B are the zoom lens 12.

  The shutter unit 14 includes an aperture mechanism and a shutter mechanism. The solid-state image sensor 15 converts an optical image into an electric signal. The A / D conversion circuit 16 converts an analog image signal output from the solid-state image sensor 15 into digital image data.

  The timing generation circuit 18 supplies a clock signal and a control signal to the solid-state imaging device 15, the A / D conversion circuit 16, the D / A conversion circuit 26, and the like, and is controlled by the memory control circuit 22 and the system control circuit 50. The image processing circuit 20 performs predetermined pixel interpolation processing and color conversion processing on the image data from the A / D conversion circuit 16 or the image data from the memory control circuit 22.

  In the image processing circuit 20, predetermined calculation processing is performed using image data obtained by photographing, and the system control circuit 50 performs exposure control circuit 40 and distance measurement control circuit based on the obtained calculation result. 42 is controlled. Thus, TTL (through-the-lens) AF (autofocus) processing, AE (automatic exposure) processing, and EF (flash pre-emission) processing are performed.

  The AF evaluation value used in the distance measurement control circuit 42 is calculated as follows. The image processing circuit 20 extracts a high frequency component of the image data input from the A / D conversion circuit 16. Then, the absolute value of the high frequency component of the image data is obtained, and the data obtained by integrating the absolute value data within a predetermined area is used as the AF evaluation value.

  Further, the image processing circuit 20 performs predetermined arithmetic processing using image data obtained by photographing, and also performs TTL AWB (auto white balance) processing based on the obtained arithmetic result.

  The memory control circuit 22 controls the A / D conversion circuit 16, timing generation circuit 18, image processing circuit 20, image display memory circuit 24, D / A conversion circuit 26, memory circuit 30, compression / decompression circuit 32, and the like.

  The image data output from the A / D conversion circuit 16 passes through the image processing circuit 20 and the memory control circuit 22, or the image data from the A / D conversion circuit 16 passes directly through the memory control circuit 22 to the image display memory circuit. 24 or the memory circuit 30.

  The image display unit 28 includes a TFT type LCD or the like. Display image data written in the image display memory circuit 24 is displayed by the image display unit 28 via the D / A conversion circuit 26.

  An electronic viewfinder function can be realized by sequentially displaying image data taken using the image display unit 28. It is also possible to display a histogram created by the image processing circuit 20.

  The image display unit 28 can arbitrarily turn on / off the display according to an instruction from the system control circuit 50. When the display is turned off, the power consumption of the imaging apparatus 100 can be significantly reduced.

  The memory circuit 30 is for storing captured still image data and moving image data, and has a sufficient storage capacity for storing a predetermined number of still image data and moving image data for a predetermined time. The memory circuit 30 can also be used as a work area for the system control circuit 50.

  The compression / decompression circuit 32 compresses and decompresses image data by adaptive discrete cosine transform (ADCT) or the like, reads image data stored in the memory circuit 30, performs compression processing or decompression processing, and finishes the processing. Data is written to the memory circuit 30.

  The exposure control circuit 40 controls the shutter unit 14 having an aperture mechanism and a shutter mechanism, and has a flash light control function in cooperation with the flash 404.

  The distance measurement control circuit 42 controls the focus lens 13. The exposure control circuit 40 and the distance measurement control circuit 42 are controlled using the TTL method. The zoom control circuit 44 controls the zoom lens 12.

  The connector 48 is also called an accessory shoe, and is provided with an electrical contact with the flash device 400 and a mechanical fixing means. The flash device 400 is configured such that the flash 404 is controlled via the connector 402 and the connector 48. The flash device 400 also has an AF auxiliary light projecting function and a flash light control function.

  A system control circuit 50 controls the entire imaging apparatus 100. The memory circuit 52 stores constants, variables, programs, and the like for operating the system control circuit 50. The display unit 54 includes a liquid crystal display device, a speaker, and the like that display an operation state, a message, and the like using characters, images, sounds, and the like according to execution of a program in the system control circuit 50.

  The display unit 54 is installed in a single or a plurality of locations near the operation unit of the imaging device 100 so as to be easily visible, and is configured by a combination of, for example, an LCD, an LED, and a sounding element. In addition, the display unit 54 is partially installed in the optical viewfinder 104.

  Among the display contents of the display unit 54, what is displayed on the LCD or the like includes single shot / continuous shooting display, self-timer display, compression ratio display, image size display, number of recorded images, number of remaining shots, and shutter speed. Display, aperture value display, exposure compensation display, and the like. Further, flash display, red-eye reduction display, macro shooting display, buzzer setting display, clock battery level display, battery level display, error display, information display with multiple digits, display / removal status display of recording medium 200, communication I / F operation display, date / time display, etc.

  Among the display contents of the display unit 54, what is displayed in the optical viewfinder 104 includes in-focus display, camera shake warning display, flash charge display, shutter speed display, aperture value display, exposure correction display, and the like.

  The nonvolatile memory circuit 56 is electrically erasable and recordable. For example, an EEPROM or the like is used. The nonvolatile memory circuit 56 stores information set by the user, a predetermined amount for displaying a wide range by a predetermined amount with respect to a captured image, which will be described later, and the like.

  The predetermined amount is the number of pixels determined by the imaging apparatus manufacturer as optimal when performing an angle-of-view change recording operation described later. The predetermined amount can be changed by the user. The predetermined amount is recorded for each electronic zoom magnification, a focal length that can be shifted to the electronic zoom, and a shake correction state.

  The tilt detection circuit 57 detects the tilt state of the imaging apparatus 100. The operation means 60, 62, 64, 66 and 72 input various operation instructions of the system control circuit 50. It is composed of one or a plurality of combinations such as a switch, dial, touch panel, pointing by line of sight detection, and a voice recognition device.

  Next, specific configurations of these operating means will be described.

  The mode dial 60 can be set by switching each function mode such as power-off, automatic shooting mode, shooting mode, panoramic shooting mode, playback mode, multi-screen playback / erase mode. The shutter switch 62 (SW1) is turned on during the operation of a shutter button (not shown) (half-pressed). Then, the start of operations such as AF processing, AE processing, AWB processing, and EF processing is instructed.

  Further, the shutter switch 64 (SW2) is turned on when the operation of a shutter button (not shown) is completed (fully pressed). When the shutter switch SW2 is turned on, the exposure process, the image processing circuit 20 and the like that write the image data to the memory circuit 30 through the A / D conversion circuit 16 and the memory control circuit 22 are operated. Start.

  Further, a series of processing operations such as a development process using the calculation in the memory control circuit 22, a recording process in which the image data is read from the memory circuit 30, compressed by the compression / decompression circuit 32, and written to the recording medium 200 are started. Instruct.

  The image display on / off switch 66 can set on / off of the image display unit 28. With this function, when photographing is performed using the optical viewfinder 104, it is possible to save power by cutting off the current supply to the image display unit 28 including a TFT type LCD or the like.

  Since the menu switch 72 is pressed, the menu screen is displayed, and on / off switching of each function and selection of shooting setting parameters are performed. The operability parameter table can also be selected on this menu screen.

  The operation unit 74 including various buttons, a touch panel, and the like has functions such as a set button, a cancel button, a macro button, a multi-screen playback page break button, a flash setting button, and a single shooting / continuous shooting / self-timer switching button.

  In addition, functions such as a menu movement + (plus) button, a menu movement-(minus) button, a reproduction image movement + (plus) button, and a reproduction image-(minus) button are also provided. In addition, it has functions such as a selection / switching button for setting selection and switching of various functions when performing shooting and playback such as a shooting image quality selection button, an exposure correction button, a date / time setting button, and a panorama mode.

  Also, it has functions such as up / down and left / right movement buttons for moving the recording location, and enlargement / reduction buttons for changing the recording location size. Also, functions such as a determination / execution button for setting determination and execution of various functions when shooting and playback in panorama mode, an image display on / off switch for setting on / off of the image display unit 28, and the like are provided. .

  Also provided are a rec review on / off switch for setting a rec review function for automatically reproducing image data taken immediately after shooting, an image size selection switch for setting an image size, and the like. Furthermore, a compression mode switch that is a switch for selecting a compression rate of JPEG compression or for selecting a CCD RAW mode for digitizing a signal of the solid-state imaging device 15 and recording it on a recording medium is provided.

  Furthermore, a playback mode switch that can set each function mode such as a playback mode, a multi-screen playback / erase mode, and a PC connection mode is also provided. There are also a playback switch for instructing the start of a playback operation in which a captured image is read from the memory circuit 30 or the recording medium 200 and displayed by the image display unit 28 in the shooting mode state, and an image deletion switch for deleting the shot image. Provided.

  The power supply control circuit 80 includes a battery detection circuit, a DC-DC converter, a switch circuit that switches a block to be energized, and the like. Then, the presence / absence of a battery, the type of battery, the remaining battery level are detected, the DC-DC converter is controlled based on the detection result and the instruction of the system control circuit 50, and the necessary voltage is recorded for a necessary period. 200 is supplied to each part including 200.

  The power source 86 includes a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery, an AC adapter, or the like. The power supply control circuit 80 and the power supply 86 are connected by connectors 82 and 84.

  The interface 90 mediates between the recording medium 200 such as a memory card and a hard disk and the system control circuit 50. The connector 92 is connected to the recording medium 200. The recording medium attachment / detachment detection circuit 98 detects whether or not the recording medium 200 is attached to the connector 92.

  In the present embodiment, the interface and connector for attaching the recording medium 200 are described as one system. Of course, the interface and connector to which the recording medium 200 is attached may have a single or plural number of systems. Moreover, it is good also as a structure provided with combining the interface and connector of a different standard.

  The interface and the connector may be configured using a PCMCIA card, a CF (Compact Flash (registered trademark)) card, or the like based on a standard.

  Further, the interface 90 and the connector 92 can be configured by using a PCMCIA card, a CF (Compact Flash (registered trademark)) card, or the like conforming to a standard. Accordingly, various communication cards such as a LAN card, a modem card, a U-step SB card, an IEEE 1394 card, a P1284 card, a step SC step SI card, a communication card such as a PH step S, and the like can be connected. Therefore, image data and management information attached to the image data can be transferred to and from other computers and peripheral devices such as a printer.

  The optical viewfinder 104 can perform shooting using only the optical viewfinder 104 without using the electronic viewfinder function of the image display unit 28. Further, in the optical viewfinder 104, some functions of the display unit 54 such as an in-focus display, a camera shake warning display, a flash charge display, a shutter speed display, an aperture value display, an exposure correction display, and the like are installed. .

  The communication circuit 110 has various communication functions such as RS232C, USB, IEEE1394, P1284, SCSI, modem, LAN, and wireless communication. Reference numeral 112 denotes a connector for connecting the imaging apparatus 100 to another device by the communication circuit 110 or an antenna in the case of wireless communication.

  A recording medium 200 such as a memory card or a hard disk includes a recording unit 202 configured by a semiconductor memory, a magnetic disk, or the like, an interface 204 with the imaging device 100, and a connector 206 for connecting to the imaging device 100.

  2 (FIGS. 2A and 2B) is a flowchart showing a procedure of overall control processing executed by the imaging apparatus of FIG.

  This process is executed by the system control circuit 50 in FIG.

  In FIG. 2A, the system control circuit 50 first initializes a flag, a control variable, and the like by power-on such as battery replacement (step S101), and initially sets the image display of the image display unit 28 to an off state (step S102). .

  The system control circuit 50 determines the setting position of the mode dial 60, and if the mode dial 60 is set to power off (step S103), the display of each display unit is changed to the end state.

  Then, necessary parameters, setting values, and setting modes including flags and control variables are recorded in the nonvolatile memory 56. Further, after performing a predetermined end process such as shutting off unnecessary power of each part of the imaging apparatus 100 including the image display unit 28 by the power control circuit 80 (step S105), the process returns to step S103.

  If the mode dial 60 is set to the photographing mode (step S103), the process proceeds to step S106.

  If the mode dial 60 has been set to another mode (step S103), the system control circuit 50 executes processing according to the selected mode (step S104). Return.

  The system control circuit 50 determines whether the power supply control circuit 80 has a problem in the operation of the imaging apparatus 100 in terms of the remaining capacity of the power supply 86 and the operation status (step S106). Here, if there is a problem, a predetermined warning display is performed by an image or sound using the display unit 54 (step S108), and then the process returns to step S103.

  If there is no problem with the power supply 86 (YES in step S106), the system control circuit 50 determines whether the operation state of the recording medium 200 has a problem with the operation of the imaging apparatus 100, particularly with respect to the recording / reproducing operation of image data with respect to the recording medium 200. Is determined (step S107). Here, if there is a problem, a predetermined warning display is performed by an image or sound using the display unit 54 (step S108), and then the process returns to step S103.

  If there is no problem in the operation state of the recording medium 200 (YES in step S107), the process proceeds to step S109. The captured image data is displayed using the image display unit 28, the electronic viewfinder is turned on (step S109), and the process proceeds to step S110.

  In FIG. 2B, it is determined whether shooting is started (step S110). If shooting has not started, the process returns to the shooting start determination (step S110). When shooting is started, distance measurement / photometry processing is performed (step S111). The distance measurement / photometry processing (step S111) will be described later with reference to FIG. Next, photographing processing is performed (step S112). The photographing process (step S112) will be described later with reference to FIG.

  After the photographing is completed, it is determined whether or not the mode is a REC review mode (step S113). The on / off setting of the REC review mode can be switched by a REC review switch in the operation unit 74 or can be switched by a camera setting menu. If it is not the REC review mode, the process returns to the shooting start determination (step S110).

  In the case of the REC review mode, it is determined whether or not the next photographed image is a photographed image with the electronic zoom (step S114). If it is not a photographed image by the electronic zoom, the display data of the photographed image written in the image display memory circuit 24 is displayed on the image display unit 28 (step S115).

  In the case of a photographed image with the electronic zoom, it is next determined whether or not the photographing field angle confirmation mode is set (step S116). If the shooting angle of view confirmation mode is not set, the display data of the captured image written in the image display memory circuit 24 is displayed on the image display unit 28 (step S115).

  When the display data of the photographed image written in the image display memory circuit 24 is displayed, it is next determined whether or not an operation for locking the REC review has been performed (step S117).

  The operation of locking the REC review can be performed by pressing a set button on the operation unit 74 or pressing an image display ON / OFF switch during the REC review. When the REC review lock operation is performed, the REC review is locked (step S118).

  As a result, the REC review can be continued even after a predetermined time has elapsed. The REC review time can be switched by a REC review switch in the operation unit 74 or can be switched by a camera setting menu.

  Next, it is determined whether or not the REC review lock has been released (step S119). The REC review lock release operation can be performed by operating the shutter switch 62 (SW1). When the REC review lock release operation is performed, the REC review image display is erased from the image display unit 28 (step S120), and the process returns to the determination to start shooting (step S110).

  If the REC review lock operation has not been performed, it is next determined whether or not the set REC review time has elapsed (step S121). If the REC review time has not elapsed, the process returns to the REC review lock operation determination (step S117). If the REC review time has elapsed, the REC review image display is erased from the image display unit 28 (step S120), and the process returns to the determination to start shooting (step S110).

  In the shooting angle of view confirmation mode (YES in step S116), an image with a predetermined angle wider than the image displayed on the image display unit 28 at the time of shooting is displayed on the image display unit 28 (step S122). The image display unit 28 at this time will be described later with reference to FIG.

  The parts other than the part displayed on the image display unit 28 at the time of photographing are grayed out so that a predetermined amount of part can be seen. In this embodiment, the display is grayed out. However, the display may be of any format as long as a predetermined amount of information can be seen.

  This predetermined amount is determined by the electronic zoom magnification at the time of shooting, the focal length when shifting to the electronic zoom, the state of the blur correction process, and the like. A predetermined amount based on each state is recorded in the nonvolatile memory circuit 56 in advance. This predetermined amount is large when the electronic zoom at the time of shooting is high, and a wider area is displayed.

  Even when the focal length when shifting to the electronic zoom is long, a larger area is displayed with a larger predetermined amount. Further, even when there is no blur correction process, a larger area is displayed with a larger predetermined amount. Although the predetermined amount is determined from various factors, the maximum amount is selected from among the predetermined amounts determined from the electronic zoom magnification, the focal length when shifting to the electronic zoom, and the state of blur correction processing.

  Next, it is determined whether or not an operation for changing the recorded image has been performed (step S123). By pressing the set button in the operation unit 74 while the shooting angle-of-view confirmation image is displayed, the recorded image changing operation image is displayed on the image display unit 28, and the recorded image is changed on the screen. be able to.

  If the operation for changing the recorded image has not been performed, it is determined whether or not the next set REC review time has elapsed (step S124). If the REC review time has not elapsed, the process returns to the determination of whether or not an operation for changing the recorded image has been performed (step S123). If the REC review time has elapsed, the REC review image display is erased from the image display unit 28 (step S120), and the process returns to the determination to start shooting (step S110).

  When an operation for changing the recorded image is performed, the recorded image is changed (step S125). The recorded image changing operation will be described later with reference to FIGS. When the recorded image change operation is completed, the REC review image display is erased from the image display unit 28 (step S120), and the process returns to the determination of the start of shooting (step S110).

  FIG. 3 is a flowchart showing a first procedure of the recorded image changing operation process executed in step S125 of FIG. 2, and FIGS. 4 (FIGS. 4A to 4F) are recordings in the flowchart of FIG. It is a figure which shows the display screen of the image display part in FIG. 1 at the time of an image change operation process.

In the shooting angle-of-view confirmation mode, for example, when the image display unit 28 at the time of recording is shot in the state of FIG. 4A, the electronic zoom angle of view, the focal length when shifting to the electronic zoom, Based on the state, the REC review is displayed as shown in FIG. Reference numeral 401 denotes a recorded image area described later.

  By the operation for changing the recorded image area 401 while the REC review is being displayed, an operation button is displayed on the image display unit 28 as shown in FIG. FIG. 4C shows an operation button 402 for full-screen display, which will be described later, and an operation button 403 for recording, which will be described later.

  On this screen, the user performs a recorded image change operation. The recording image changing operation is performed by operating the up / down / left / right moving buttons for moving the recording area and the enlargement / reduction buttons for changing the recording image size in the operation unit 74.

  In FIG. 3, the system control circuit 50 determines whether or not a recorded image change operation has been performed by the user (step S301). If a recorded image change operation has been performed, the recorded image area is changed in accordance with the operation (step S302), and portions that are not recorded in accordance with the changed recorded image area are displayed in gray to make the recorded image easier to understand for the user. Are displayed (step S303).

  If the recorded image change operation has not been performed, a portion that is not recorded is grayed out and displayed according to the currently set recorded image area (step S303). FIG. 4D shows an image in which the recording position is changed, and FIG. 4E shows an image when the size is also changed. Reference numeral 404 in FIG. 4D is a recorded image area when the recording position is changed. Reference numeral 405 in FIG. 4E denotes a recorded image area when the position and size are changed.

  Next, it is determined whether or not an operation for recording the currently set recording image area has been performed (step S304). The recording operation can be performed by the user selecting the button for the recording operation described above.

  When the recording operation is performed, the image data of the selected area is cut out and stored in the memory circuit 30 (step S305). If the recording operation has not been performed, it is next determined whether or not the entire image is being displayed (step S306). The whole image is an image at an angle of view where electronic zoom is not performed.

  When the entire image is displayed, it is displayed as shown in FIG. Reference numeral 406 denotes a recorded image area when full screen display is performed. Reference numeral 407 in FIG. 4F is a button used to return the display to a wide image by a predetermined amount from the full-screen display described later. Of course, the recorded image changing operation can also be performed on this screen.

  The screen is shown in FIG. When the entire image is displayed in this way, the user can select a recorded image in a wider range. Reference numeral 408 in FIG. 4F denotes a recorded image area when the position and size are changed.

  If the entire image is not displayed, it is determined whether an entire image display operation has been performed (step S307). The full screen display is performed by the user selecting the above-described operation button for full screen display. When the entire image display operation is performed, the entire image is displayed (step S308). If the entire image display operation has not been performed, image display that is wide by a predetermined amount is continued (step S309).

  If the entire image is displayed, it is determined whether or not an operation for returning the display image to a wide image by a predetermined amount has been performed (step S310). This operation is performed by the user selecting the above-described button for returning to an image wide by a predetermined amount. When the returning operation is performed, an image wide by a predetermined amount is displayed (step S309). If the operation of returning to the original state has not been performed, the display of the entire image is continued (step S311).

  Next, it is determined whether or not the recording image change operation end has been selected (step S312). If the recording image changing operation end is not selected, the process returns to the determination of whether or not the recording image changing operation has been performed (step S301). If the recording image change operation end is selected, the recording image change operation is ended.

  FIG. 5 is a flowchart showing the procedure of distance measurement / photometry processing executed in step S111 of FIG.

  In FIG. 5, the system control circuit 50 reads out the charge signal from the solid-state imaging device 15 and sequentially reads the captured image data into the image processing circuit 20 via the A / D conversion circuit 16 (step S501). Using the sequentially read image data, the image processing circuit 20 performs predetermined calculations used for TTL AE (automatic exposure) processing, EF processing, and AF processing.

  In each processing here, a specific portion of the total number of photographed pixels is extracted by extracting a necessary portion according to necessity and used for calculation. This makes it possible to perform optimum calculations for different modes such as the center-weighted mode, the average mode, and the evaluation mode in each of the TTL method AE, EF, AWB, and AF processes.

  Using the calculation result in the image processing circuit 20, the system control circuit 50 performs AE control using the exposure control circuit 40 (step S503) until it is determined that the exposure (AE) is appropriate (step S502).

  Using the measurement data obtained by the AE control, the system control circuit 50 determines whether or not the flash is necessary (step S504), and if the flash is necessary, sets the flash flag and charges the flash 404 (step S504). S505).

  If it is determined that the exposure (AE) is appropriate (YES in step S502), the measurement data and / or the setting parameters are stored in the internal memory or the memory circuit 52 of the system control circuit 50.

  The system control circuit 50 uses the image processing circuit 20 until the white balance (AWB) is determined to be appropriate using the calculation result in the image processing circuit 20 and the measurement data obtained by the AE control (step S506). The color processing parameters are adjusted to perform AWB control (step S507).

  If it is determined that the white balance (AWB) is appropriate (YES in step S506), the measurement data and / or setting parameters are stored in the internal memory of the system control circuit 50 or the memory circuit 52.

  Using the measurement data obtained by the AE control and the AWB control, the system control circuit 50 performs the AF control using the distance measurement control circuit 42 until the distance measurement (AF) is determined to be in focus (step S508). This is performed (step S509).

  If it is determined that the distance measurement (AF) is in focus (YES in step S508), the measurement data and / or setting parameters are stored in the internal memory or the memory circuit 52 of the system control circuit 50, and the distance measurement / photometry processing routine step S111. Exit.

  FIG. 6 is a flowchart showing the procedure of the photographing process executed in step S112 of FIG.

  In FIG. 6, the system control circuit 50 performs the charge clear operation of the solid-state image sensor 15 (step S601), starts charge accumulation of the solid-state image sensor 15 (step S602), and then uses the exposure control circuit 40 to release the shutter. The unit 14 is opened (step S603), and exposure of the solid-state image sensor 15 is started (step S604).

  Here, it is determined whether or not the flash 404 is necessary based on the flash flag (step S605). If necessary, the flash 404 is caused to emit light (step S606). If the flash 404 cannot be used, the process proceeds to step S607.

  The system control circuit 50 waits for the exposure of the solid-state imaging device 15 to end according to the photometric data (step S607), closes the shutter unit 14 by the exposure control circuit 40 (step S608), and ends the exposure of the solid-state imaging device 15.

  If the set charge accumulation time has elapsed (YES in step S609), the system control circuit 50 ends the charge accumulation of the solid-state imaging device 15 (step S610). A charge signal is read from the solid-state imaging device 15, and the memory circuit 30 is connected via the A / D conversion circuit 16, the image processing circuit 20, the memory control circuit 22, or directly from the A / D converter 16 via the memory control circuit 22. The photographed image data is written in the predetermined area (step S611). When the series of processing is finished, the photographing processing routine step S112 is finished.

  FIG. 7 is a flowchart showing a second procedure of the recorded image changing operation process executed in step S125 of FIG. 2, and FIG. 8 (FIGS. 8A (a) to 8B (m)) is a recording in the flowchart of FIG. It is a figure which shows the display screen of the image display part in FIG. 1 at the time of an image change operation process.

In the shooting angle of view confirmation mode, for example, when the image display unit 28 at the time of recording is shot in the state of FIG. 8A (a), the electronic zoom angle of view, the focal length when shifting to the electronic zoom, Based on the state, the REC review is displayed as shown in FIG. 8A (b). Reference numeral 801 in FIG. 8A (b) denotes a recorded image area.

  By the operation for changing the recorded image while the REC review is displayed, the operation button is displayed on the image display unit 28 as shown in FIG. 8A (c). Reference numeral 802 in FIG. 8A (c) denotes an operation button for full screen display. Reference numeral 803 in FIG. 8A (c) denotes an operation button for recording, which will be described later.

  In FIG. 7, first, it is determined whether or not the setting for tilt correction is made (step S701). Settings for tilt correction can be set in the camera setting menu. The setting can be performed in advance before shooting, or can be performed during the recording image change process.

  When tilt correction is performed, the recorded image area is tilted and displayed as shown in FIG. 8A (d) according to the tilt of the imaging apparatus 100 detected by the tilt detection circuit 57 during shooting. Reference numeral 804 in FIG. 8A (d) denotes a recorded image area when tilt correction is performed.

  When tilting and displaying, if the tilt during shooting is large and the recorded image area does not fit on the screen as shown in FIG. 8A (e), the recorded image area is reduced as shown in FIG. 8A (f). indicate. Reference numeral 805 in FIG. 8A (e) denotes an image area when the recording image area is set without being reduced. Reference numeral 806 in FIG. 8A (f) denotes a recorded image area when the recorded image area is reduced so as to enter the screen.

  As shown in FIG. 8A (g), when the entire image can be accommodated, the display is corrected to the normal position as shown in FIG. 8B (h). Reference numeral 807 in FIG. 8A (g) denotes an angle of view displayed on the image display unit 28 when displaying an image wide by a predetermined amount when the oblique correction is performed. Reference numeral 808 in FIG. 8A (g) represents a recorded image area when oblique correction is performed.

  FIG. 8A (h) shows the image display unit 28 when an image display that is cut out from the entire image and displayed by a predetermined amount is displayed. It is also possible for the user to set whether or not to perform the display after correcting to the normal position. When the inclination correction is not performed, as shown in FIG. 8A (c), the user performs a recording image changing operation in the displayed state.

  The recording image changing operation is performed by operating the up / down and left / right moving buttons for moving the recording image area and the enlargement / reduction buttons for changing the recording image size in the operation unit 74.

  The system control circuit 50 determines whether or not a recording image area changing operation has been performed by the user (step S703). When the recording image area changing operation is performed, the recording image area is changed in accordance with the operation (step S704), and the portion that is not recorded in accordance with the recording image area changed in order to make the recording image easy to understand for the user. Grayed out and displayed (step S705).

  When the recording image change operation is not performed, the portion that is not recorded is grayed out and displayed according to the currently set recording image area (step S303 in FIG. 3). FIG. 8B (i) shows an image obtained by performing tilt correction and changing the recording position and size. Reference numeral 809 in FIG. 8B (i) denotes a recorded image area when the position and size are changed.

  Next, it is determined whether or not an operation for recording the currently set recording image area has been performed (step S706). When the recording operation is performed, the image data of the selected area is cut out and stored in the memory circuit 30 (step S707). If the recording operation has not been performed, it is next determined whether or not the entire image is being displayed (step S708).

  The whole image is an image at an angle of view where electronic zoom is not performed. When tilt correction is performed, the entire image is displayed as shown in FIG. 8B (j). A reference numeral 810 in FIG. 8B (j) represents a recorded image area in the case where tilt correction is performed on the entire image. Reference numeral 811 in FIG. 8B (j) denotes a button used to return the display to a wide image by a predetermined amount from the full-screen display described later.

  When the tilt correction is not performed, the entire image is displayed as shown in FIG. 8B (k). Reference numeral 812 in FIG. 8B (k) denotes a recorded image area when no inclination correction is performed on the entire image. Of course, the recorded image changing operation can also be performed on this screen.

  The screen when the tilt correction is performed is FIG. 8B (l), and the screen when the tilt correction is not performed is FIG. 8B (m). Reference numeral 813 in FIG. 8B (l) denotes a recorded image area in which the size and position are changed when tilt correction is performed. Reference numeral 814 in FIG. 8B (m) denotes a recorded image area in which the size and position are changed when the inclination correction is not performed. When the entire image is displayed in this way, the user can select a recorded image in a wider range.

  If the entire image is not displayed, it is determined whether an entire image display operation has been performed (step S709). The full screen display is performed by the user selecting the above-described operation button for full screen display. When the entire image display operation is performed, the entire image is displayed (step S710). If the entire image display operation has not been performed, image display that is a predetermined amount wider is continued (step S711).

  When the entire image is displayed, it is determined whether or not an operation for returning the display image to a wide image by a predetermined amount has been performed (step S712). This operation is performed by the user selecting the above-described button for returning to an image wide by a predetermined amount. When the returning operation is performed, an image wide by a predetermined amount is displayed (step S711). If the operation of returning to the original state has not been performed, the display of the entire image is continued (step S713).

  Next, it is determined whether or not the recording image change operation end has been selected (step S714). If the recording image changing operation end is not selected, the process returns to the determination of whether or not the recording image changing operation has been performed (step S703). If the recording image change operation end is selected, the recording image change operation is ended.

  In the above description, the recording instruction to the recording medium 200 has been described. In this regard, it may be instructed to store image data in a server on the network via the network.

  The imaging apparatus according to the present invention includes display means for displaying a captured image based on an output from the image sensor, instruction means for instructing recording of the captured image, and determination means for determining a display range of the captured image. In addition, in accordance with the recording instruction by the instruction unit, the display unit includes a control unit that displays an image in a second field angle range that is larger than the first field angle range displayed before the instruction. .

  Here, the determining means determines the display range of the captured image based on the image enlargement amount at the time of image capturing. The determining means determines a display range of the captured image based on a focal length at which image expansion at the time of image capturing is started. The determining means determines a display range of the captured image based on a state of blur correction at the time of image capturing.

  With this configuration, the intended purpose is achieved.

  The object of the present invention can also be achieved by supplying a system or apparatus with a storage medium storing software program codes for realizing the functions of the above-described embodiments. That is, it goes without saying that this can also be achieved by the computer (or CPU or MPU) of the system or apparatus reading and executing the program code stored in the storage medium. In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, magnetic tape, nonvolatile semiconductor memory card, ROM, or the like can be used. . Further, the functions of the above-described embodiments may be realized by executing the program code read by the computer.

  However, when the OS (operating system) operating on the computer performs part or all of the actual processing based on the instruction of the program code, and the functions of the above-described embodiments are realized by the processing. Needless to say, is also included.

  Furthermore, the program code read from the storage medium may be written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. After that, based on the instruction of the program code, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing, and the processing of the above-described embodiment is realized by the processing. Needless to say.

28 Image display section (display means)
30, 52 Memory circuit (recording means)
50 System control circuit (control means, determination means, inclination correction means)
57 Tilt detection circuit (Tilt detection means)
74 Operation unit (instruction means, inclination correction means)

Claims (9)

Display means for displaying a captured image based on an output from the image sensor;
Instruction means for instructing recording of the photographed image;
After accompanied intends shooting recording instruction by said instruction means, corresponding images of the range of the second angle larger than the range of the first field angle that has been displayed before the instruction on the display unit on the shooting Control means for displaying the image on the display means as a processed image and changing the range of the second angle of view based on the presence or absence of blur correction;
Changing means capable of changing an image range corresponding to an image to be recorded from an image in the second field angle range from the first field angle range;
A recording unit that records an image corresponding to the range of the first angle of view or an image corresponding to the image range changed by the changing unit as a captured image;
An imaging apparatus comprising: An inclination detecting means for detecting the inclination of the imaging device;
Inclination correction means for correcting the inclination of the photographed image based on the inclination information detected by the inclination detection means;
The imaging apparatus according to claim 1, further comprising: The imaging apparatus according to claim 1, wherein the control unit changes a display range of the captured image based on a size of the captured image to be recorded. The imaging apparatus according to claim 1, wherein the control unit changes a display range of a captured image based on a focal length when shifting to electronic zoom.   5. The image pickup apparatus according to claim 1, wherein the image in the range of the second angle of view displayed on the display unit is an image acquired after focusing. 6.   The imaging apparatus according to claim 1, wherein the first angle of view is an angle of view by electronic zoom. A display step for displaying a captured image based on an output from the image sensor on a display means ;
An instruction step for instructing recording of a captured image;
After accompanied intends shooting recording instruction by said instructing step, the images of the range of the second angle larger than the range of the first field angle that has been displayed before the instruction on the display unit by the display step A control step of displaying on the display means as an image corresponding to the photographing, and changing the range of the second angle of view based on the presence or absence of blur correction and displaying on the display means ;
A change step capable of changing an image range corresponding to an image to be recorded from an image in the range of the second angle of view from the range of the first angle of view;
A recording step of recording an image corresponding to the range of the first angle of view or an image corresponding to the image range changed by the changing step as a captured image;
An image pickup apparatus control method comprising: A display step for displaying a captured image based on an output from the image sensor on a display means ;
An instruction step for instructing recording of a captured image;
After accompanied intends shooting recording instruction by said instructing step, the images of the range of the second angle larger than the range of the first field angle that has been displayed before the instruction on the display unit by the display step A control step of displaying on the display means as an image corresponding to the photographing, and changing the range of the second angle of view based on the presence or absence of blur correction and displaying on the display means ;
A change step capable of changing an image range corresponding to an image to be recorded from an image in the range of the second angle of view from the range of the first angle of view;
A recording step of recording an image corresponding to the range of the first angle of view or an image corresponding to the image range changed by the changing step as a captured image;
A program that causes a computer to execute a method for controlling an imaging apparatus.   A computer-readable storage medium storing the program according to claim 8.

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