JP2010154101A - Image pickup device and program for image pickup device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a user to intuitively and easily recognize that the user in exposure operation. <P>SOLUTION: A device comprises: an image pickup section for picking up an image of a subject to generate image data; a sensor section for sensing the state of a viewing field area; a display for displaying information including an image; an input section for receiving an input of a release signal; a storage for provisionally storing image data of an image during image pickup while updating it at a predetermined interval and storing image data of an image captured according to the input of the release signal; a combined image generating section for generating a plurality of combined images by using image data provisionally stored in the storage; an exposure control section for calculating an exposure time in the image pickup section based on a sensing result of the sensor at a time when the release signal is inputted, and controlling exposure according to the exposure time; and a display control section for executing control to cause the display to display the plurality of combined images generated by the combined image generating section in a predetermined order until the exposure time elapses in the case that the exposure time is longer than a predetermined time. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an imaging apparatus and an imaging apparatus program that capture an image and generate electronic image data of the image.

  In an imaging apparatus such as a digital camera that captures an image and generates electronic image data of the image, various techniques for automatically controlling exposure and focus are known. For example, a technique for improving sensitivity by appropriately removing noise included in an image is known. According to this technique, even when shooting an outdoor landscape at night with little light, a clear captured image can be obtained by appropriately adjusting the exposure.

  In general, when shooting a dark field of view such as an outdoor landscape at night, it is impossible to detect the contrast of an image unless exposure is performed for a long time. For this reason, if nothing is displayed on the display unit of the imaging device during exposure, an inexperienced photographer will not be able to recognize what is happening and move the imaging device thinking that it is a malfunction. As a result, there is a problem that a blurred image is shot. As a technique for preventing such a shooting failure, conventionally, a technique for notifying a photographer that an exposure operation is being performed by displaying information on an exposure time on a display unit is known (for example, (See Patent Documents 1 and 2). Among these, Patent Document 1 discloses a technique for displaying an elapsed time at the shutter speed on the display unit when it is a long time. Patent Document 2 discloses a technique for displaying the remaining exposure time or elapsed time in various modes.

Japanese Patent Laid-Open No. 11-24154 JP 2002-335427 A

  However, in the conventional techniques described in Patent Documents 1 and 2, although the elapsed time and remaining time of exposure are displayed on the display unit, an image that is completely different from the actually captured image is displayed. For this reason, unaccustomed photographers have been unable to recognize what is happening, and have moved the imaging device.

  The present invention has been made in view of the above, and an object of the present invention is to provide an imaging apparatus and an imaging apparatus program capable of intuitively and easily recognizing that a photographer is exposing. To do.

  In order to solve the above-described problems and achieve the object, an imaging apparatus according to the present invention includes an imaging unit that images a subject existing in a predetermined visual field region and generates electronic image data, and brightness. A sensor unit that detects a state of the visual field region, a display unit that displays information including an image corresponding to the image data, an input unit that receives an input of a release signal instructing photographing by the imaging unit, and the imaging unit A storage unit that temporarily stores image data of an image that is being captured while updating the image data at predetermined time intervals, and stores image data of an image that is captured by the imaging unit in response to the input of the release signal; A combined image generating unit that generates a plurality of combined images by using image data temporarily stored in the storage unit; and a sensor unit at the time when the release signal is input. An exposure time in the imaging unit is calculated based on the knowledge result, an exposure control unit that controls the exposure in the imaging unit according to the calculated exposure time, and if the exposure time exceeds a predetermined time, the display unit On the other hand, a display control unit that performs control to display a plurality of composite images generated by the composite image generation unit in a predetermined order until the exposure time elapses is provided.

  Moreover, the imaging device according to the present invention is characterized in that, in the above-described invention, the display control unit performs control to gradually increase an area of an image displayed by the display unit as time passes.

  In the image pickup apparatus according to the present invention, in the above invention, a divided image generation unit that generates a plurality of divided images by dividing an image corresponding to any of the plurality of image data temporarily stored in the storage unit. The combined image generation unit generates a plurality of combined images by combining the plurality of divided images generated by the divided image generation unit.

  The imaging device according to the present invention may further include a motion determination unit that determines whether or not the imaging device is moving, and when the motion determination unit determines that the imaging device has a motion, The image generation unit generates a turbulence image in which the arrangement of the composite image displayed on the display unit is disturbed, and the display control unit displays the turbulence image generated by the composite image generation unit on the display unit. It is characterized in that control is performed.

  In the imaging device according to the present invention, in the above invention, the composite image generation unit overlaps a plurality of images corresponding to the plurality of image data temporarily stored in the storage unit in the order of data generation. A plurality of composite images obtained in accordance with the number of images generated is generated, and the display control unit performs control to display the composite images in order from a composite image with a small number of superimposed images.

  Moreover, the imaging device according to the present invention further includes a motion determination unit that determines the presence or absence of motion of the imaging device in the above invention, and the composite image generation unit includes a plurality of images temporarily stored in the storage unit Of the data, an image picked up by the image pickup unit is used at a timing when the movement determination unit determines that the image pickup apparatus does not move.

  The imaging apparatus program according to the present invention is an imaging apparatus that captures an image of a subject existing in a predetermined visual field, generates electronic image data corresponding to the captured image, and displays the image. A storage unit that temporarily stores the image data of the image being captured while updating the image data at predetermined time intervals, and stores the image data of the captured image in response to an input of a release signal instructing shooting. A composite image generation step for generating a plurality of composite images by using the image data temporarily stored in the storage unit in the imaging device, and when the release signal is input, An exposure time calculating step for calculating an exposure time at the time of photographing based on the state of the visual field area detected by the imaging device; the exposure time calculated in the exposure time calculating step When a predetermined time is exceeded, a composite image display step of displaying a plurality of composite images generated in the composite image generation step in a predetermined order while performing an exposure operation according to the exposure time is performed. .

  According to the present invention, the display unit displays, in a predetermined order, a plurality of synthesized images that are synthesized by using the images temporarily stored in the storage unit while the imaging unit performs exposure. It is possible to make the user intuitively and easily recognize that the exposure is in progress.

  The best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described below with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of an imaging apparatus according to Embodiment 1 of the present invention. An imaging apparatus 1 shown in FIG. 1 collects light from a subject included in a predetermined field of view and generates digital image data from an image signal obtained by photoelectrically converting the collected light. 2, an image processing unit 3 that performs image processing on image data generated by the imaging unit 2, a display unit 4 that displays an image corresponding to the image data processed by the image processing unit 3, and an imaging device An input unit 5 that receives an input of an operation signal 1, a sensor unit 6 that detects the state of the field of view of the imaging unit 2 including brightness, a motion determination unit 7 that determines the presence or absence of movement of the imaging device 1, The clock 8 having a photographing date determination function and a timer function and the image data of the image (through image) captured by the imaging unit 2 are temporarily stored while being updated at predetermined time intervals, and the imaging unit 2 Image data of the captured image A storage unit 9 for storing to a control unit 10 for controlling the operation of the imaging apparatus 1 according to the operation signal input from the detection result and the input unit 5 of the sensor unit 6, the.

  The imaging unit 2 includes a photographing lens 21 that collects light from a subject in a predetermined field of view, a diaphragm 22 that adjusts the amount of incident light collected by the photographing lens 21, and a shutter that operates according to a release input. 23, an image sensor 24 such as a CCD (Charge Coupled Device) that receives incident light that has passed through the aperture 22 and the shutter 23 and converts it into an electrical signal, and an analog signal output from the image sensor 24 is amplified or white. And a signal processing unit 25 that generates digital image data by performing A / D conversion after performing various signal processing including balance. Among these, the photographing lens 21 is an optical system including one or a plurality of lenses, and is driven by the lens driving unit 11. The aperture 22 is driven by the aperture drive unit 12, and the shutter 23 is driven by the shutter drive unit 13.

  The image processing unit 3 includes a divided image generation unit 31 that generates a plurality of divided images by dividing a through image corresponding to the latest image data among the image data temporarily stored in the storage unit 9, and a divided image generation And a composite image generation unit 32 that generates a plurality of composite images by appropriately combining some or all of the plurality of divided images generated by the unit 31.

  The display unit 4 is realized by using a display panel made of liquid crystal, organic EL, or the like, and appropriately displays operation information of the imaging apparatus 1 and information related to photographing in addition to image data.

  The input unit 5 includes a power button of the imaging apparatus 1, a release button for inputting a release signal for giving an imaging instruction, a mode switching button for switching various operation modes that can be set by the imaging apparatus 1, and instructions for reproducing and editing image data. Control buttons including Further, a touch panel may be stacked on the display unit 4 as the input unit 5 so that the user can input an operation signal on the display unit 4.

  The storage unit 9 responds to a through image storage unit 91 that temporarily stores image data of a through image captured by the imaging unit 2 while updating the image data at a predetermined time interval, and a release signal input by the input unit 5. A captured image storage unit 92 that stores the image data of the captured image, and a program storage unit 93 that stores the various programs executed by the imaging apparatus 1, including the program for the imaging apparatus according to the first embodiment. The through image storage unit 91 always stores about 3 to 5 pieces of image data, and the oldest image data is deleted each time new image data is generated. The storage unit 9 is realized using a semiconductor memory such as a flash memory or a DRAM that is fixedly provided inside the imaging apparatus 1. The storage unit 9 has a function as a recording medium interface that records information on a computer-readable recording medium such as a memory card mounted from the outside, and reads information recorded on the recording medium. Also good.

  The control unit 10 includes an exposure control unit 101 that controls the exposure operation in the imaging unit 2 and a display control unit 102 that controls the display operation in the display unit 4. The exposure control unit 101 has a function of calculating the exposure time based on the operation instruction input by the input unit 5 and the detection result of the sensor unit 6 and adjusting the exposure time (shutter speed), aperture, and sensitivity. When the exposure time calculated by the exposure control unit 101 exceeds a predetermined time, the display control unit 102 displays a plurality of composite images generated by the composite image generation unit 32 on the display unit 4 until the exposure time elapses. Control the display in order. The control unit 10 having the above functional configuration is realized using an MPU (Micro Processing Unit) or the like, and is connected to each component of the imaging device 1 that is a control target via a bus line.

  FIG. 2 is a flowchart illustrating an outline of processing performed when the imaging apparatus 1 having the above configuration is set to the shooting mode. First, the display unit 4 displays a through image captured by the imaging unit 2 under the control of the display control unit 102 (step S1). Subsequently, the control unit 10 adjusts the focus with respect to the through image (step S2).

  The imaging apparatus 1 writes the image data of the through image that has been adjusted in focus into the through image storage unit 91 and temporarily records it (step S3).

  The subsequent processing differs depending on whether or not a release signal is input by pressing a release button that forms part of the input unit 5. When no release signal is input (step S4: No), the imaging apparatus 1 proceeds to step S13 described later. On the other hand, when a release signal is input in step S4 (step S4: Yes), the exposure control unit 101 calculates an exposure time t for performing an exposure operation based on the detection result of the sensor unit 6 (step S5).

If the exposure time t the exposure control unit 101 is calculated in step S5 is greater than the predetermined time t ₀ (step S6: Yes), the exposure control unit 101 characteristic processing in the first embodiment (step S7 to S10) I do. On the other hand, if the exposure time t the exposure control unit 101 is calculated in step S5 is the predetermined time t ₀ or less (step S6: No), the exposure control unit 101 captures an image by performing a normal exposure control (step S14) Then, the process proceeds to step S11. The predetermined time t ₀ here is, for example, about 1 second.

  The process after step S7 is demonstrated. In step S7, the imaging unit 2 starts exposure under the control of the exposure control unit 101 (step S7). Thereafter, the imaging device 1 notifies that the imaging device 1 is in an exposed state via the display unit 4 (step S8).

  FIG. 3 is a flowchart showing details of the exposure state notifying process in step S8. In FIG. 3, the display control unit 102 calculates a maximum integer (denoted as [t / Δt]) that does not exceed the quotient t / Δt obtained by dividing the exposure time t by a predetermined time interval Δt. The value of the parameter m is set (step S81). The time interval Δt here is, for example, about 0.5 seconds.

Subsequently, the divided image generation unit 31 reads the latest through image P ₀ from the through image storage unit 91 and divides the read latest through image P ₀ into m equal parts, thereby dividing the m divided images P ₁ , P ₂ , ..., and generates a P _m (step S82). FIG. 4 is a diagram illustrating an outline of processing performed by the divided image generation unit 31. The latest through image P ₀ shown in FIG. 4 is an image of a ship floating in the night sea under the moonlight. In FIG. 4, the divided image generation unit 31 divides the latest through image P ₀ into nine. That is, the value of the parameter m in this case is 9.

Subsequently, the composite image generation unit 32 uses the m divided images P ₁ , P ₂ ,..., P _m generated by the divided image generation unit 31 to generate m types of composite images Q ₁ , Q ₂ ,. Q _m is generated (step S83). FIGS. 5-1 to 5-9 are diagrams showing display examples of the composite image Q _k (k = 1, 2,..., 9) when m = 9. In FIGS. 5-1 to 5-9, the synthesized image Q _k is an image _obtained by arranging _k divided images P ₁ ,..., P _k at positions before division. Among these, the composite image Q ₁ is the same as the divided image P ₁ . Note that the combination of the divided images P ₁ ,..., P _k when generating the composite image can be changed as appropriate. Further, the arrangement position of each divided image is not limited to the position before division.

  Since the through image is an image with insufficient exposure, there is a possibility that the shadow of the image cannot be displayed correctly. Therefore, it is more preferable that the image processing unit 3 performs a process of sensitizing the through image at an appropriate timing between steps S82 to S83.

After step S83, the display control unit 102 initializes a variable n for counting the repetition process to 1 (step S84), and performs control to display the composite image Q _n generated by the composite image generation unit 32 on the display unit 4. (Step S85).

When the display time of the composite image Q _{n on} the display unit 4 has reached Δt (step S86: Yes), the display control unit 102 increases the variable n by 1 (step S87). If the new variable n is equal to m + 1 (step S88: Yes), the imaging apparatus 1 ends the exposure state detection process, returns to the main routine, and proceeds to step S9. On the other hand, if the new variable n is not equal to m + 1 (step S88: No), the imaging apparatus 1 returns to step S85.

  FIG. 6 is a diagram showing a change in display content on the display unit 4 when steps S86 to S89 are repeated. As shown in FIG. 6, in the display unit 4, the display content changes at the time interval Δt, and the display area of the image on the display unit 4 gradually increases. A photographer who sees such a change in the display mode of the image on the display unit 4 can intuitively recognize that the imaging device 1 is in an exposed state. Therefore, even a photographer who is unfamiliar with long-time exposure can obtain confirmation that the exposure is correctly performed, and the imaging apparatus 1 is not moved unnecessarily during the exposure. Note that the display order of the composite images in FIG. 6 is merely an example, and the display order can be changed as appropriate.

Next, a case _where the display time of the composite image Q _{n on} the display unit 4 has not reached Δt in step S86 (step S86: No) will be described. In this case, the motion determination unit 7 determines the presence or absence of motion of the imaging device 1 (step S89). When the motion determination unit 7 determines that there is no motion in the imaging device 1 (step S90: No), the imaging device 1 returns to step S85. On the other hand, when the motion determination unit 7 determines that there is a motion in the imaging device 1 (step S90: Yes), the composite image generation unit 32 generates the divided images P ₁ and P ₂ constituting the displayed composite image Q _n. ,..., P _n is disturbed, and a turbulent image Q _n ′ is generated (step S91). Thereafter, the display unit 4 displays a distorted image Q _n ′ instead of the composite image Q _n under the control of the display control unit 102 (step S92). After step S92, the imaging apparatus 1 returns to the main routine and proceeds to step S9.

FIG. 7 is a diagram illustrating a display example of the disordered image Q _n ′. FIG. 7 shows a turbulent image Q ₇ ′ generated by the composite image generation unit 32 when m = 9 and n = 7. In this way, when the motion determination unit 7 detects the motion of the imaging device 1, the display unit 4 displays the turbulent image Q _n ′ corresponding to the composite image Q _n being displayed, so that the photographer can be exposed. It is possible to immediately recognize that an error has occurred. Note that the display mode of the turbulent image on the display unit 4 is not limited to that described above. For example, as shown in FIG. 8, after a lapse of a predetermined time after displaying the turbulent image Q ₇ ′, the second turbulent image Q ₇ ″ having a larger turbulence is displayed, and finally nothing is displayed. You may do it.

  Next, the processing after step S9 in the main routine will be described. In step S9, if the time t has elapsed from the start of exposure (step S9: Yes), the imaging device 1 ends the exposure (step S10). On the other hand, if the time t has not elapsed since the start of exposure (step S9: No), the imaging device 1 repeats step S9.

Thereafter, the control unit 10 adds information such as the data generation date and time to the image data generated by the imaging unit 2 and subjected to the image processing by the image processing unit 3 with reference to the output of the clock 8, and the captured image It records in the memory | storage part 92 (step S11). The display unit 4 displays the captured image under the control of the display control unit 102 (step S12). Image to be displayed in step S12, has the composition similar to that of the latest through image P _0, a clearer image.

  Subsequently, when an imaging end instruction is input by the input unit 5 (step S13: Yes), the imaging apparatus 1 ends a series of processes. On the other hand, when the imaging end instruction is not input by the input unit 5 (step S13: No), the imaging device 1 returns to step S1.

According to the first embodiment of the present invention described above, the display unit 4 is synthesized by using the through image temporarily stored in the through image storage unit 91 while the imaging unit 2 performs exposure. multiple composite images Q _1, Q ₂ that, ..., to display the Q _m in a predetermined order, it becomes possible to recognize intuitively understandable to the user is being exposed. As a result, it is possible to prevent a shooting failure and take a clear picture even in a situation where the exposure time is long and the imaging apparatus 1 is likely to move as in the case of shooting a dark place. .

(Embodiment 2)
The second embodiment of the present invention is different from the first embodiment described above in the exposure state notification process. FIG. 9 is a flowchart showing details of the exposure state notification process (step S8 in FIG. 2) according to the second embodiment.

In FIG. 9, the display control unit 102 detects the number N of through images without blur among the through images stored in the through image storage unit 91 (step S181), and obtains a quotient t obtained by dividing the exposure time t by N. / N is set as a time parameter t _N (step S182), and a variable n for counting the repetition process is initialized to 1 (step S183). The value of N here is at most about 10.

Thereafter, the composite image generation unit 32 generates a composite through image T _n by superimposing n (≦ N) through images in the order of data generation time among N through images without blurring (step S184). ). Subsequently, the display unit 4 displays the composite image generating unit 32 has generated synthesized through image T _n (step S185).

If the display time of synthesis through image T ₁ on the display unit 4 has reached t _N (step S186: Yes), the display control unit 102 the variable n is increased by one (step S187). If the new variable n is equal to N + 1 (step S188: Yes), the imaging apparatus 1 ends the exposure state notification process, returns to the main routine, and proceeds to step S9 in FIG. On the other hand, if the new variable n is not equal to N + 1 (step S188: No), the imaging device 1 returns to step S184.

FIG. 10 is a diagram showing a change example of the display content on the display unit 4 when steps S184 to S188 are repeated, and shows a case where N = 5. In the synthesized through image T _n (n = 1, 2,..., 5) shown in the figure, the image displayed later is more sensitized and the image becomes clearer. A photographer who sees such a change in the display mode of the image on the display unit 4 can intuitively recognize that the imaging device 1 is in an exposed state. Therefore, even a photographer who is unfamiliar with long-time exposure can obtain confirmation that the exposure is correctly performed, and the imaging apparatus 1 is not moved unnecessarily during the exposure.

Next, in step S186, if the display time of synthesis through the image T _n on the display unit 4 has not reached t _N (step S186: No) will be described. In this case, the motion determination unit 7 determines the presence or absence of motion of the imaging device 1 (step S189). When the motion determination unit 7 determines that there is no motion in the imaging device 1 (step S190: No), the imaging device 1 returns to step S184. In contrast, when the motion determination unit 7 determines that there is motion in the image pickup apparatus 1 (step S190: Yes), the composite image generating unit 32 stops the display of the synthesized through image T _n (step S191). Thereafter, the imaging apparatus 1 returns to the main routine and proceeds to step S9 in FIG.

  In the second embodiment, the image processing unit 3 does not need to generate a divided image. For this reason, in the second embodiment, it is not necessary to provide the image processing unit 3 with the function of the divided image generation unit 31.

According to the second embodiment of the present invention described above, the display unit 4 is synthesized by using the through image temporarily stored in the through image storage unit 91 while the imaging unit 2 performs exposure. a plurality of synthetic through images T _1, T ₂ that, ..., to display the T _N in a given order, it becomes possible to recognize intuitively understandable to the user is being exposed. As a result, it is possible to prevent a shooting failure and take a clear picture even in a situation where the exposure time is long and the imaging apparatus 1 is likely to move as in the case of shooting a dark place. .

(Other embodiments)
Up to this point, the first and second embodiments have been described in detail as the best mode for carrying out the present invention. However, the present invention should not be limited only by the above two embodiments. FIG. 11 is a diagram illustrating another display example (first example) of the composite image in the exposure state notification process. In the case shown in FIG. 11, _first , the same small image R ₁ as the divided image P _{1 of} FIG. Thereafter, the middle image R ₂ obtained by combining the divided images P ₁ , P ₂ , P ₄ , and P ₅ is displayed. Finally, the large image R ₃ corresponding to the latest through image P ₀ is displayed. In FIG. 11, the display area may be continuously changed from the small image R ₁ to the large image R ₃ .

FIG. 12 is a diagram showing still another display example (second example) of the composite image in the exposure state notification process. In this display example, the image processing unit 3 performs a sensitization process on _one through image S ₁ stored in the through image storage unit 91, and the sensitized through image (sensitivity increased through the sensitization process) ( Example of composite image) The display unit 4 sequentially displays S ₂ and S ₃ . In the case of this display example, since the sensitivity is increased by amplifying the signal of the through image that is underexposed, the noise N gradually becomes conspicuous as the screen becomes brighter. Therefore, as in the third example shown in FIG. 13, the display area of the through image is reduced as time passes to make the noise N inconspicuous, while the remaining exposure time is displayed in the empty space of the display unit 4. It may be.

It is a figure which shows the structure of the imaging device which concerns on Embodiment 1 of this invention. 5 is a flowchart illustrating an outline of processing performed when the imaging apparatus according to Embodiment 1 of the present invention is set in a shooting mode. It is a flowchart which shows the detail of the exposure condition alerting | reporting process in Embodiment 1 of this invention. It is a figure which shows the outline | summary of a divided image generation process. It is a figure which shows the example of a display of the synthesized image which consists of one divided image. It is a figure which shows the example of a display of the synthesized image which consists of two divided images. It is a figure which shows the example of a display of the synthesized image which consists of three division images. It is a figure which shows the example of a display of the synthesized image which consists of four division images. It is a figure which shows the example of a display of the synthesized image which consists of five divided images. It is a figure which shows the example of a display of the synthesized image which consists of six divided images. It is a figure which shows the example of a display of the synthesized image which consists of seven divided images. It is a figure which shows the example of a display of the synthesized image which consists of eight divided images. It is a figure which shows the example of a display of the synthesized image which consists of nine divided images. It is a figure which shows the time change of the display content of the synthesized image in an exposure state alerting | reporting process. It is a figure which shows the example of a display of a disordered image. It is a figure which shows another example of a display of a disordered image. It is a flowchart which shows the detail of the exposure condition alerting | reporting process in Embodiment 2 of this invention. It is a figure which shows the time change of the display content of the synthetic | combination through image in an exposure state alerting | reporting process. It is a figure which shows another display example (1st example) of the synthesized image in an exposure state alerting | reporting process. It is a figure which shows another example of a display (2nd example) of the synthesized image in an exposure state alerting | reporting process. It is a figure which shows another display example (3rd example) of the synthesized image in an exposure state alerting | reporting process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Imaging device 2 Imaging part 3 Image processing part 4 Display part 5 Input part 6 Sensor part 7 Motion determination part 8 Clock 9 Memory | storage part 10 Control part 11 Lens drive part 12 Diaphragm drive part 13 Shutter drive part 21 Shooting lens 22 Diaphragm 23 Shutter 24 image sensor 25 signal processing unit 31 divided image generation unit 32 composite image generation unit 91 through image storage unit 92 captured image storage unit 93 program storage unit 101 exposure control unit 102 display control unit P ₀ latest through image P _{1 to} P ₉ , P _n divided image Q ₁ ~Q _9, Q _n composite image Q ₇ ', Q _n' disturbance image Q ₇ '' second disturbance image R ₁ small image R ₂ in the image R ₃ large image S ₁ through image S ₂ , S ₃ sensitized through image T ₁ ~T _3, T _n synthesized through image

Claims (7)

An imaging unit that images a subject existing in a predetermined visual field area and generates electronic image data;
A sensor unit for detecting a state of the visual field region including brightness;
A display unit for displaying information including an image corresponding to the image data;
An input unit for receiving an input of a release signal instructing photographing by the imaging unit;
The image data of the image captured by the imaging unit is temporarily stored while being updated at a predetermined time interval, and the image data of the image captured by the imaging unit in response to the input of the release signal is stored. And
A composite image generation unit that generates a plurality of composite images by using the image data temporarily stored in the storage unit;
An exposure control unit that calculates an exposure time in the imaging unit based on a detection result of the sensor unit at the time when the release signal is input, and controls exposure in the imaging unit according to the calculated exposure time;
A display control unit that controls the display unit to display a plurality of composite images generated by the composite image generation unit in a predetermined order until the exposure time elapses when the exposure time exceeds a predetermined time; ,
An imaging apparatus comprising: The display control unit
The imaging apparatus according to claim 1, wherein control is performed to gradually increase an area of an image displayed by the display unit as time elapses. A divided image generation unit that generates a plurality of divided images by dividing an image corresponding to any of the plurality of image data temporarily stored in the storage unit;
The composite image generation unit
The imaging apparatus according to claim 1, wherein a plurality of synthesized images are generated by combining a plurality of divided images generated by the divided image generation unit. A motion determination unit for determining the presence or absence of motion of the imaging device;
When the motion determination unit determines that the imaging device has a motion,
The composite image generation unit generates a turbulence image in which the layout of the composite image displayed on the display unit is disturbed,
The imaging apparatus according to claim 3, wherein the display control unit controls the display unit to display a turbulence image generated by the composite image generation unit. The composite image generation unit
A plurality of images corresponding to the plurality of image data temporarily stored in the storage unit are overlapped in the order of data generation, and a plurality of composite images obtained according to the number of overlaps are generated,
The display control unit
The imaging apparatus according to claim 1, wherein the display unit is controlled to display in order from a composite image with a small number of superimposed images. A motion determination unit for determining the presence or absence of motion of the imaging device;
The composite image generation unit
6. The image picked up by the image pickup unit at a timing when the movement determination unit determines that the image pickup apparatus has no movement among a plurality of pieces of image data temporarily stored in the storage unit. The imaging device described. An imaging apparatus that captures an image of a subject existing in a predetermined field of view, generates electronic image data corresponding to the captured image, and displays the image, and stores the image data of the image being captured for a predetermined time An image pickup apparatus including a storage unit that stores image data of an image shot in response to an input of a release signal instructing shooting while temporarily storing the image while updating at intervals.
A composite image generation step of generating a plurality of composite images by using the image data temporarily stored in the storage unit;
When the release signal is input, an exposure time calculation step of calculating an exposure time at the time of shooting based on the state of the visual field area detected by the imaging device at the time when the input is made,
When the exposure time calculated in the exposure time calculation step exceeds a predetermined time, a composite image that displays a plurality of composite images generated in the composite image generation step in a predetermined order while performing an exposure operation according to the exposure time Display step,
A program for an imaging apparatus, characterized in that

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