JP2008092223A - Device and method for sensing image and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent the forgetting of a photographing and the failure of the photographing by correctly recognizing the contents of a practically recorded image by a user. <P>SOLUTION: An image sensing device has a photographing system containing a taking lens optical system 12 photographing a subject image and a CCD 13, a memory card 29 recording image data obtained by the photographing system and a display section 26 displaying the recorded image data. The image sensing device further has a key input section 27 (a power-supply key) indicating the completion of a photographing operation by the photographing system and a control section 22 reading the image data recorded to the memory card 29 up to that time and displaying the image data in a review by the display section 26 when the photographing operation with the indication is completed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an imaging apparatus, an imaging method, and a program that are particularly suitable for a digital camera that performs imaging that reflects the user's intention.

  Conventionally, in order to confirm the contents of image data acquired in the shooting mode, the recorded image data is temporarily displayed on the monitor display section for a certain period of time immediately after the shooting operation, and the playback mode is changed from the shooting mode. Various techniques have been conceived for the display method of the image when switching to.

Even in the patent literature, when the photographing device such as a digital camera is switched to the playback mode, the elapsed time from the photographing date and time of the last acquired image to the present is calculated so that the user can display the image desired to be viewed. In addition, there is a technique in which the form of an image displayed on the LCD can be changed by comparison with a predetermined threshold value. (For example, Patent Document 1)
JP 2006-173833 A

  In the state of switching from the shooting mode to the playback mode, including the technique described in Patent Document 1, there is a case where the user's intention to check the contents of the recorded image remains working even in the same place. It can be inferred that there are many.

  For this reason, for example, when the user forgets to take a simple picture, or when the actual shooting operation is not achieved despite operating the shutter button for reasons such as shooting conditions, the user intends in the recorded image. Even when such an image is not included, it is possible to newly shift to a shooting operation according to the user's shooting intention by setting the shooting mode again at the shooting location.

  On the other hand, in a state where the power is turned off from the shooting mode, it is considered that there is a high possibility that the user ends shooting with the camera, and shooting is not performed for a while and the shooting location is moved. Therefore, if there is no image recorded as a result of shooting as intended by the user, there is a high possibility that the shooting opportunity will be lost.

  Also, digital cameras, etc., often turn off the power frequently when shooting for long periods of time, such as when moving from place to place to extend battery life, and multiple shots taken between power-on and power-off are close. Often done in places.

  The present invention has been made in view of the above circumstances, and the purpose of the present invention is to make the user correctly recognize the contents of the actually recorded image so that the user forgets to take it or misses it. An object of the present invention is to provide an imaging device, an imaging method, and a program capable of reliably preventing (not recorded).

  The present invention provides a photographing means for photographing a subject image, a recording means for recording image data obtained by the photographing means, a display means for displaying the image data recorded in the recording means, and an instruction for instructing to turn off the power. And a display control means for displaying the image data recorded in the recording means so far by the display means when the photographing operation in accordance with the instruction from the instruction means is completed.

  According to the present invention, when power-off is instructed from the shooting mode, the image data recorded in the shooting mode is automatically displayed as a review, so that the user can correctly recognize the contents of the actually recorded image. By doing so, it is possible to surely prevent forgetting to take a picture or missing a picture.

(First embodiment)
A first embodiment when the present invention is applied to a digital camera will be described below with reference to the drawings.
FIG. 1 shows a conceptual configuration of an electronic circuit of the entire digital camera 10.
In the drawing, in the monitoring state in the photographing mode, the position of a part of the lenses in the photographing lens optical system 12, specifically the zoom lens and the focus lens, is appropriately moved by driving the motor (M) 11. A CCD 13 that is a solid-state imaging device is disposed at an imaging position behind the photographing optical axis of the photographing lens optical system 12 via a mechanical shutter (not shown).

  The CCD 13 is scanned and driven by a timing generator (TG) 14 and a CCD driver 15 and outputs a photoelectric conversion output corresponding to a light image formed at fixed intervals for one screen.

  In the AGC / SH (Auto Gain Control / Sample Hold) circuit 16, this photoelectric conversion output is automatically gain-adjusted according to the ISO sensitivity set for each primary color component of RGB in the state of an analog value signal. After being sampled and held, it is sent to the A / D converter 17.

  The A / D converter 17 converts analog image data into digital data and outputs the digital data to the color process circuit 18.

  The color process circuit 18 performs color process processing including pixel interpolation processing and γ correction processing on digital image data, generates digital luminance luminance / chrominance image data YUV by matrix conversion, and then performs DMA (Direct Memory Access). ) Output to the controller 19.

  The DMA controller 19 once writes the image data YUV output from the color process circuit 18 into a buffer inside the DMA controller 19 using the composite synchronization signal, the memory write enable signal, and the clock signal from the color process circuit 18 as well. DMA transfer is performed to a DRAM 21 used as a buffer memory via an interface (I / F) 20.

  The control unit 22 includes a CPU and a non-volatile memory such as a flash memory that fixedly stores an operation program including a reproduction operation when the power is turned off from a shooting mode to be described later, and is a main memory used as a work memory. While temporarily developing and writing necessary data in the memory 23 as appropriate, the control operation of the entire digital camera 10 is controlled.

  Thus, after the DMA transfer of the image data to the DRAM 21 is completed, the control unit 22 reads the image data from the DRAM 21 via the DRAM interface 20 and writes it to the VRAM 25 via the display controller 24.

  The display controller 24 periodically reads the image data from the VRAM 25 and outputs it to the display unit 26.

  The display unit 26 is configured by a color liquid crystal panel having a size of about 3 inches diagonal with a backlight, for example, disposed on the rear surface of the housing of the digital camera 10 and its driving circuit. By functioning as an electronic viewfinder and performing display based on image data from the display controller 24, the image captured from the display controller 24 at that time is displayed on the monitor in real time, while being selected in the playback mode. Play and display images.

  In this way, a part of the key input unit 27 is configured at a timing at which a still image is to be captured in a so-called through image display state in which the image of the subject at that time is displayed in real time on the display unit 26 as a monitor image. When a shutter key is operated, a trigger signal is generated.

  In response to the trigger signal, the control unit 22 cancels the DMA transfer of the luminance and color difference signals for one screen currently captured from the CCD 13 to the DRAM 21, and is not shown at a shutter speed according to the appropriate exposure conditions. The mechanical shutter and the CCD 13 are driven to obtain luminance and color difference signals for one screen and transfer them to the DRAM 21. Thereafter, this path is stopped and the state is changed to the storage and storage state.

  In this storage and storage state, the control unit 22 outputs the image data YUV for one frame written in the DRAM 21 to 8 pixels × 8 pixels for each of Y, U, and V components via the DRAM interface 20. A unit called a basic block is read out and written to the image compression / decompression circuit 28. The image compression / decompression circuit 28 uses a predetermined image format, for example, ADCT (Adaptive Discrete Couse Transform) according to JPEG (Joint Photographic Coding Experts Group). : Adaptive discrete cosine transform) and encoding by data compression processing such as Huffman coding which is an entropy coding method.

  The obtained code data is read out from the image compression / decompression circuit 28 as a data file for one image and written into a memory card 29 which is a recording medium that is detachably attached to the digital camera 10.

  Then, along with the compression processing of the luminance and color difference signals for one frame and the writing of all the compressed data to the memory card 29, the control unit 22 activates the path from the CCD 13 to the DRAM 21 again.

  The control unit 22 is further connected to the key input unit 27, the audio processing unit 30, the flash drive unit 31, and the USB interface 32 described above.

  The key input unit 27 includes a power key, a zoom key, a shooting mode key, a playback mode key, a cursor key, a set key, a menu key, a macro key, a flash key, and the like in addition to the shutter key. The key input signal associated with is transmitted directly to the control unit 22.

  The sound processing unit 30 includes a sound source circuit such as a PCM sound source, and at the time of recording sound, the sound processing unit 30 digitizes the sound signal input from the microphone unit 33 disposed on the front surface of the digital camera 10, and has a predetermined data file format. For example, the data is compressed according to MP3 (Moving Picture Coding Experts Group-1 audio layer 3) standard, and an audio data file is created and sent to the memory card 29.

  On the other hand, the audio processing unit 30 uncompresses and converts the audio data file read from the memory card 29 during audio reproduction into an analog signal, and a speaker unit 34 provided on the back side of the digital camera 10 as with the display unit 26. Drive to emit loud sounds.

  The flash drive unit 31 charges a flash-use large-capacitance capacitor (not shown) at the time of still image shooting, and then flash-drives the flash light-emitting unit 35 configured by a xenon discharge tube or the like based on the control from the control unit 22. .

  However, when shooting of a moving image instead of a still image is selected in the shooting mode, the above-described still image data is acquired and the image compression / expansion circuit 27 is used when the first shooting key is operated. A series of operations of compressing data and storing in the memory card 29 is started as a continuous execution at an appropriate frame rate, for example, 30 [frames / second], and the shutter key is operated for the second time, or When a predetermined time limit, for example, 30 seconds elapses, the series of still image data files are collectively set as a motion JPEG data file (AVI file).

  In the playback mode, the control unit 22 selectively reads out the image data stored in the memory card 29, and the image compression / decompression circuit 28 compresses the image data in a procedure that is completely opposite to the data compression procedure in the shooting mode. The image data is decompressed, and the decompressed image data is held in the DRAM 21 via the DRAM interface 20, and then the content held in the DRAM 21 is stored in the VRAM 25 via the display controller 24, and the image data is periodically transferred from the VRAM 25. The video signal is read out and generated on the display unit 26.

  If the selected image data is not a still image but a moving image, playback of the individual still image data constituting the selected moving image file is executed continuously in time at a predetermined frame rate, and the last still image is When the data reproduction is finished, the data is reproduced and displayed using only the still image data positioned at the head until the next reproduction instruction is given.

  The USB interface 32 performs transmission and reception with various external devices such as a personal computer and a printer connected to the USB terminal 36 in accordance with the USB (Universal Serial Bus) standard.

Next, the operation of the above embodiment will be described.
FIG. 2 shows the processing contents during the operation from the time when the power is turned off to the shooting mode. All the operation control is executed by the operation unit 22 developing an operation program stored in advance in the main memory 23.

  At the beginning of the processing, in the power-off state, the operation waits for an operation for turning on the power in the photographing mode by the operation of the power key or photographing mode key of the key input unit 27 (step A01).

  Accordingly, when the power-on operation is performed, this is determined in step 01, and as required in the shooting mode, such as the extension of the shooting lens optical system 12 and the display of a through image on the display unit 26 accompanying the imaging by the CCD 13. The power supply startup process is executed (step A02).

  This power-on process includes a process of clearing all shooting lists described later as initial settings.

  Immediately after completion of the power-on processing, the operation immediately shifts to the operation in the photographing mode. Thereafter, whether or not a power-off is instructed by operating the power key while performing a through image display operation (not shown) (step A03). ) By repeatedly determining whether or not shooting has been instructed by operating the shutter key (step A04), the system waits for these key operations to be performed.

  When a shooting instruction is issued by operating the shutter key, this is determined in step A04, and shooting is performed according to the shooting conditions set at that time, and image data is compressed accordingly, and recorded in the memory card 29. (Step A05).

  At the same time, for example, the file name (including the file format) of the image data file recorded in the memory card 29 and its time stamp are additionally set in the main memory 23 as a shooting list which is shooting history information (step A06). Thereafter, the process returns to the standby operation from step A03.

  After executing the photographing operation as necessary as described above, when the power off is instructed by operating the power key, this is determined in the above step A03, and the photographing history information stored in the main memory 23 at that time is determined. Is referred to (step A07).

  In addition, during the operation in the current shooting mode from when it was determined that the power-on operation was performed at the previous step A01 until it was determined that the power-off was indicated at the previous step A03, it was recorded by shooting. Whether or not there is an image is determined based on the presence or absence of the shooting list (step A08).

  Here, if there is a shooting list and it is determined that the shot image is recorded in the memory card 29 during the current shooting mode operation, the image data is appropriately read from the memory card 29 according to the shooting list and reproduced on the display unit 26. It is displayed (step A09).

  In this case, for example, a review display method includes a method of automatically switching and displaying a so-called slide show format in which images recorded by the current shooting are displayed one by one in the order of shooting times, for example, every 5 seconds. The images recorded by the current shooting are displayed one by one in the order of shooting time, and arrows are displayed on the left and right of the images to prompt the user to operate the cursor keys. A method of switching images, a method of dividing a screen of the display unit 26 into, for example, a total of 16 screens of 4 × 4 by using thumbnail images of a plurality of images, and the like. The user may arbitrarily select and set in advance.

  Therefore, when it is determined that the review display has been completed according to the display format at that time, or when the user performs a key operation to forcibly end the review display, the image recorded by the current shooting is confirmed. The processing according to the power-off instruction, for example, if the photographing lens optical system 12 has a collapsible lens group, retracts into the camera body, and relates to the display diameter of the photographing system or the through image. After executing the power-off process including stopping all operations (step A10), the process returns to step A01 to wait for the power to be turned on again.

  Further, in the review display of the photographed image in the above step A09, not only the photographed image is displayed on the display unit 26 so as to confirm the photographed image, but also the immediate photographing mode is restored in case the user recognizes that he / she has forgotten to photograph. It is also possible to perform a display that prompts the user to perform key operations.

  Further, if it is determined in step A08 that there is no image taken in the current shooting mode and there is no shooting list, the process proceeds directly to step A10 as instructed to turn off the power, and the power-off process is executed.

In addition, if it is determined in step A08 that there is no shooting list, for example,
“There are no images recorded by this time”
It is also possible to execute the power-off process in step A10 after displaying a guide message with such a character string on the display unit 26 for a certain period of time.

  The process for initializing the shooting list was performed only when the power was turned on, but the camera was switched from shooting mode to playback mode or from playback mode to shooting mode with the power on. In this case, the shooting list may be initialized.

  In addition, a flag may be provided on the shooting list for image data that has already been confirmed by the user, and excluded from the confirmation image when the power is turned off.

  As described above, when the power-off is instructed from the shooting mode, the image data recorded in the shooting mode is automatically displayed as a review, so that the user can correctly recognize the contents of the actually recorded image. It is possible to reliably prevent the user (photographer) from forgetting to take a picture or failing to take it.

  In addition, a shooting list is created as shooting history information in shooting mode corresponding to the period when the power was turned on until the end is instructed from the start of shooting, and corresponds to the shooting list Since only the image data that has been recorded is reviewed for confirmation, the image captured in the past shooting mode and the time stamp information added to the image data by replacement of the memory card 29 or the like are used in this shooting mode. Excludes image data that is likely to have been shot, such as image data that is likely to have been shot at a location other than the current location, or image data that is likely to have been confirmed, and has not been confirmed. In addition, only the image that can be easily re-captured at the current location can be confirmed.

(Second Embodiment)
A second embodiment when the present invention is applied to a digital camera will be described below with reference to the drawings.
Note that, regarding the digital camera 10 according to the present embodiment, the conceptual configuration of the electronic circuit is basically the same as the contents shown in FIG. Illustration and description are omitted.

Next, the operation of the above embodiment will be described.
FIG. 3 shows the processing contents during the operation from the time when the power is turned off to the shooting mode. All the operation control is executed by the control unit 22 developing an operation program stored in advance in the main memory 23.

  At the beginning of the processing, in the power-off state, the operation waits for an operation for turning on the power in the photographing mode by the operation of the power key or photographing mode key of the key input unit 27 (step B01).

  Accordingly, when the power-on operation is performed, this is determined in step 01, and as required in the shooting mode, such as the extension of the shooting lens optical system 12 and the display of a through image on the display unit 26 accompanying the imaging by the CCD 13. The power supply startup process is executed (step B02).

  This power-on process includes a process of clearing all shooting lists described later as initial settings.

  Immediately after completion of the power-on processing, the operation immediately shifts to the operation in the photographing mode. Thereafter, whether or not the power-off is instructed by the operation of the power key while performing the through image display operation not shown (step B03). ) By repeatedly determining whether or not shooting has been instructed by operating the shutter key (step B04), the system waits for these key operations to be performed.

  If an instruction for shooting is given by operating the shutter key, this is determined in step B04, and shooting according to the shooting conditions set at that time, and accompanying compression of image data, and recording to the memory card 29 are performed. (Step B05).

  At the same time, for example, the file name (including the file format) of the image data file recorded in the memory card 29 and its time stamp are additionally set in the main memory 23 as a shooting list which is shooting history information (step B06). Thereafter, the process returns to the standby operation from step B03.

  After performing a shooting operation as necessary as described above, when a power-off instruction is given by operating the power key, this is determined in step B03, and the shooting history information stored in the main memory 23 at that time is determined. Is referred to (step B07).

  In addition, during the operation in the current shooting mode from when it is determined that the power-on operation is performed at the previous step B01 to when it is determined that the power-off operation is performed at the previous step B03, an image recorded by shooting is recorded. Whether or not there is is determined based on the presence or absence of the shooting list (step B08).

  Here, if there is a shooting list and it is determined that the shot image is recorded in the memory card 29 during the current shooting mode operation, the image data is appropriately read from the memory card 29 according to the shooting list and reproduced on the display unit 26. It is displayed (step B09).

  FIG. 4 illustrates a review screen displayed on the display unit 26 at this time. Here, one of the images obtained by the current photographing is selected and displayed on the entire screen, and a “photographed image confirmation” mode display M is performed at the top of the screen. In addition, the position of the image displayed at that time in the current shooting mode is indicated by a fraction display N such as “2/5” in the upper right part of the screen. At the same time, cursor marks C1 and C2 for prompting the switching of the selected image are displayed at the left and right ends of the center of the screen.

  Further, three items are displayed as selection items for prompting the next mode switching from this state: “Is Off” I1, “Delete This Image” I2, and “Return to Shooting Mode” I3.

  The figure shows a state where “Delete this image” I2 in the item of 3 tsu is temporarily selected, and can be selected by operating the set key of the key input unit 27, for example, from this selected state. The item is executed.

  While performing such a review display, whether or not any key operation has been performed for a certain period of time, for example, 10 [seconds], or whether or not the key operation for instructing the power-off has been performed (step B10), selects another image. In step B10 or B11, it is determined whether or not a key operation has been performed (step B11), and if none of them is performed, the review display in step B09 is executed repeatedly. Wait for the decision to be made.

  However, if a key operation for selecting another image is performed, this is determined in step B12, and another image positioned before or after the time stamp according to the shooting list corresponding to the operated key direction. After setting to select data from the memory card 29 (step B12), the process proceeds to step B09, and the review display by the selected image is executed.

  If no key operation is performed for a certain period of time, for example, 10 [seconds], or if the key operation for instructing the power-off is performed, this is determined in step B10 and recorded by the current shooting. After confirming the image, processing according to the power-off instruction, for example, if the photographing lens optical system 12 has a collapsible lens group, retracting into the camera body, displaying the photographing system or through image After executing a power-off process including stopping all operations related to the diameter (step B13), the process returns to the process from step B01 to wait for the power to be turned on again.

  Further, if it is determined in step B08 that there is no image taken in the current shooting mode and there is no shooting list, the process proceeds directly to step B10 as instructed to turn off the power, and the power-off process is executed.

In addition, if it is determined in step B08 that the shooting list does not exist, for example,
“There are no images recorded by this time”
It is also possible to execute the power-off process in step B10 after displaying a guide message of such a character string on the display unit 26 for a certain period of time.

  As described above, in addition to the effect of the first embodiment, when a state where there is no operation including selection of an image while a content of the image captured in the current capturing mode is displayed has elapsed for a certain period of time. Determines that the confirmation of the photographed image has been completed, stops the review display, and can terminate the photographing operation according to the power-off instruction without causing the user to perform further key operations.

(Third embodiment)
A third embodiment when the present invention is applied to a digital camera will be described below with reference to the drawings.
Note that, regarding the digital camera 10 according to the present embodiment, the conceptual configuration of the electronic circuit is basically the same as the contents shown in FIG. Illustration and description are omitted.

Next, the operation of the above embodiment will be described.
FIG. 5 shows the processing contents during the operation from the power-off to the shooting mode. All the operation control is executed by the control unit 22 developing an operation program stored in advance in the main memory 23.

  At the beginning of the processing, in the power-off state, the operation waits for an operation for turning on the power in the photographing mode by operating the power key or photographing mode key of the key input unit 27 (step C01).

  Accordingly, when the power-on operation is performed, this is determined in step 01, and as required in the shooting mode, such as the extension of the shooting lens optical system 12 and the display of a through image on the display unit 26 accompanying the imaging by the CCD 13. The power supply startup process is executed (step C02).

  This power-on process includes a process of clearing all shooting lists described later as initial settings.

  Immediately after completion of the power-on process, the operation immediately shifts to the operation in the photographing mode. Thereafter, whether or not the power-off is instructed by the operation of the power key while performing the through image display operation not shown (step C03). ) By repeatedly determining whether or not shooting has been instructed by operating the shutter key (step C04), it waits for these key operations to be performed.

  When a shooting instruction is issued by operating the shutter key, this is determined in step C04, and the shooting condition set at that time is compared with the exposure condition at that time, and whether or not the shooting condition is satisfied. To determine whether or not shooting can be executed (step C05).

  Here, when it is determined that the shooting conditions are satisfied and the shooting according to the shooting conditions can be executed, the shooting is performed according to the set shooting conditions as they are, the acquired image data is compressed, and the memory Recording on the card 29 is performed (step C06).

  At the same time, for example, the file name (including the file format) of the image data file recorded in the memory card 29 and its time stamp are additionally set in the main memory 23 as a shooting list which is shooting history information (step C07). Thereafter, the count value in the main memory 23 for counting the number of times the shutter key is operated is updated by “+1” (step C08), and the process returns to the standby operation from step C03 again.

  If it is determined that the shooting conditions set in step C05 are not satisfied and shooting cannot be performed according to the shooting conditions, for example, the flash is in the forced flash prohibition mode, but the exposure amount required due to insufficient exposure. In the case where there is no subject image that can be focused within a predetermined short-distance range while the macro mode is set, etc., the processing related to execution of shooting in steps C06 and C07 and addition of the shooting list In step C08, only the count up of the number of shutter key operations is performed, and then the process returns to the standby operation from step C03.

  When the photographing condition set as necessary is satisfied as described above, the photographing operation is executed, and then the power off is instructed by the operation of the power key. The number of image data in the shooting list as the shooting history information stored in 23 and the count value of the shutter key operation count are read and compared (step C09), and the shutter key is operated depending on whether the two values are different. However, it is determined whether or not there is a case where photographing cannot be performed because the set photographing condition is not satisfied (step C10).

  Here, there was no case where the number of image data shown in the shooting list and the number of times the shutter key was operated matched, and the shooting conditions were not satisfied even though the shutter key was operated, and shooting could not be performed. If the determination is made, it is determined that there is no shooting failure that the user should consider, and the processing according to the power-off instruction is performed as it is, for example, if the photographing lens optical system 12 has a retractable lens group. After performing power-off processing including retracting into the camera body, stopping any operation related to the display system or through-image display diameter (step C14), the above is performed to wait for the power to be turned on again. The process returns to step C01.

In addition, there are cases where the number of image data shown in the shooting list in step C10 is different from the number of times the shutter key is operated, and shooting cannot be performed because the set shooting condition is not satisfied while the shutter key is operated. If it is determined that the power has been turned on in the immediately preceding step C01, the power off is indicated in the immediately preceding step C03 to determine that the user has confirmed the contents of the missed image. The image data acquired during the operation in the current shooting mode until this time is appropriately read out from the memory card 29 according to the shooting list, and is reproduced and displayed on the display unit 26 as a review display, and on the display unit 26 screen. That there is an image that I missed,
“Some images could not be captured even when the shutter was pressed.”
A warning message is displayed by a guide message using a character string such as (step C11).

  Thereafter, it is determined whether or not a key operation for returning to the photographing mode is performed by this warning display (step C12).

  Here, when the key operation for returning to the shooting mode is performed, the shooting list in the main memory 23 and the value of the counter for counting the number of times the shutter key is operated are both cleared and set (step C13). Returning to the process from step C03 again, the operation in the photographing mode is continued.

  On the other hand, when the key operation for returning to the shooting mode has not been performed for a certain period of time, such as when the user is satisfied after confirming the contents by review display, or when the key selection operation for further turning off the power is performed. After determining this in step C12, the processing according to the power-off instruction is performed as it is, for example, if the photographing lens optical system 12 has a collapsible lens group, the camera body is retracted, and the photographing system. After executing the power-off process including stopping all operations related to the display diameter of the through image (step C14), the process returns to the process from step C01 to wait for the power to be turned on again.

  As described above, in addition to the effect of the first embodiment, the number of times the shutter key is operated is compared with the number actually captured and recorded, and when the numerical values do not match. In addition, since there is a warning display on the review image that there is an image that could not be recorded while operating the shutter key, it is possible to prompt the user to re-shoot the image that has been missed.

  Also, unlike the first and second embodiments described above, if the numerical values match, there is no need to check, so it is not easy for the user to forget to take the photo. It is possible to efficiently prevent only the unrecorded state).

  In the third embodiment, the difference between the number of shooting instructions and the number of recorded images is determined such that shooting is not performed when the shooting condition is not satisfied, but when the shooting condition is not satisfied. In this case, the captured image is recorded with a flag indicating that the image was captured without the shooting conditions being met, and only the image data with this flag is checked when the power is turned off. May be.

  In addition, the first to third embodiments described above are examples in which the present invention is applied to a digital camera. However, the present invention is not limited to this, and a mobile phone or PDA having a camera function. It is easy to apply the same technology to (Personal Digital Assistants: personal information portable terminals) or handheld personal computers.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. In addition, the functions executed in the above-described embodiments may be combined as appropriate as possible. The above-described embodiment includes various stages, and various inventions can be extracted by an appropriate combination according to a plurality of disclosed structural requirements. For example, even if several constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the effect can be obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

1 is a block diagram showing a functional circuit configuration of a digital camera according to a first embodiment of the present invention. The flowchart which shows the processing content of the operation | movement at the time of the imaging | photography mode which concerns on the embodiment. 10 is a flowchart showing processing details of an operation in a shooting mode according to the second embodiment of the present invention. The figure which illustrates the screen temporarily displayed at the time of power-off operation which concerns on the embodiment. 10 is a flowchart showing processing details of an operation in a shooting mode according to the third embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Digital camera, 11 ... Motor (M), 12 ... Shooting lens optical system, 13 ... CCD, 14 ... Timing generator (TG), 15 ... CCD driver, 16 ... AGC / SH circuit, 17 ... A / D conversion 18 ... color process circuit, 19 ... DMA controller, 20 ... DRAM interface (I / F), 21 ... DRAM, 22 ... control unit, 23 ... main memory, 24 ... display controller, 25 ... VRAM, 26 ... display 27 ... Key input unit, 28 ... Image compression / decompression circuit, 29 ... Memory card, 30 ... Audio processing unit, 31 ... Flash drive unit, 32 ... USB interface (I / F), 33 ... Microphone unit, 34 ... Speaker unit, 35... Flash light emitting unit, 36... USB terminal.

Claims (12)

Photographing means for photographing a subject image;
Recording means for recording image data obtained by the photographing means;
Display means for displaying the image data recorded in the recording means;
An instruction means for instructing to turn off the power;
An image pickup apparatus comprising: a display control unit that displays, on the display unit, image data that has been recorded in the recording unit until the end of the photographing operation in accordance with an instruction from the instruction unit.   2. The imaging apparatus according to claim 1, wherein the display control means causes the display means to display a review of image data recorded between the time when the power is turned on and the time when the power is turned off.   2. The imaging apparatus according to claim 1, wherein the display control means causes the display means to display a review of image data recorded between the time when the current photographing mode is switched and the power is turned off.   2. The imaging apparatus according to claim 1, wherein the display control means excludes image data that has already been confirmed before an instruction to turn off the power is excluded from the review display on the display means. It further comprises holding information for creating and holding shooting history information from the start of shooting by the shooting means until the instruction means is instructed to turn off the power,
The display control means causes the display means to display only the image data corresponding to the shooting history information held by the holding means among the image data recorded in the recording means. The imaging device according to any one of the above.   The display control means stops review display when a predetermined time has passed without any operation including selection of an image recorded by the recording means, and turns off the power according to the instruction from the instruction means. The imaging device according to claim 1. Storage means for storing the number of times the photographing is designated by the photographing means;
A comparison means for comparing the number of image data recorded by the recording means with the designated number of times of photographing stored by the storage means;
4. The display control unit according to claim 1, wherein, when the numerical values do not match by the comparison unit, in addition to the image data review display, the display control unit displays a warning that there is an image that could not be recorded. The imaging device according to any one of the above. Storage means for storing the number of times the photographing is designated by the photographing means;
A comparison means for comparing the number of image data recorded by the recording means with the designated number of times of photographing stored by the storage means;
The imaging apparatus according to claim 1, wherein the display control unit suppresses the review display of the image data by the display control unit when the numerical values are matched by the comparison unit.   The imaging apparatus according to claim 1, wherein the display control unit sequentially switches and displays a plurality of images one by one.   The imaging apparatus according to claim 1, wherein the display control unit displays a list of a plurality of images by dividing the screen by a predetermined number of the display units. An imaging method in an imaging device that takes an image and records the obtained image data,
An instruction process for instructing to turn off the power;
An image pickup method comprising: a display control step of reviewing and displaying image data recorded so far at the end of a photographing operation accompanying an instruction in the instruction step. A program executed by a computer incorporated in an imaging apparatus that captures an image and records the obtained image data,
An instruction step for instructing to turn off the power;
A program for causing a computer to execute a display control step of reviewing and displaying image data recorded so far upon completion of a photographing operation accompanying an instruction in this instruction step.

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