JP6661912B2 - Image generation apparatus, image generation method, and image generation program - Google Patents

Description

  The present invention relates to an image generation device, an image generation method, and an image generation program.

  In recent years, many digital cameras are equipped with a moving image photographing function, a continuous photographing function, and a bracket photographing function with an increase in speed of an image sensor and an image processing integrated circuit. Here, the bracket photographing function refers to a function of continuously photographing a plurality of still images while changing parameters related to photographing.

FIGS. 8A and 8B are diagrams illustrating examples of images obtained by bracketing a waterfall.
FIG. 8A is an example of an image captured at a shutter speed of 1/250 second. At this time, since the shutter speed is high with respect to the flow of the waterfall, the waterfall stops and the photograph is taken. This makes it possible to capture the flow of the waterfall precisely, but on the other hand, the image lacks dynamism.
FIG. 8B is an example of an image captured at a shutter speed of 1/4 second. At this time, since the shutter speed is slow with respect to the flow of the waterfall, the waterfall is blurred and photographed. This results in an image full of dynamism, but on the other hand, the flow of the waterfall cannot be captured precisely.

  Bracket shooting is a function of automatically shooting, for example, by changing the shutter speed in a plurality of steps by simply pressing the shutter button once. Although not shown, shooting is also performed at shutter speeds of 1/80 seconds, 1/30 seconds, and 1/12 seconds. Here, the shutter speed is changed, but other shooting parameters may be changed. Thereby, the user can select the most preferable one ex post from the plurality of captured images. Bracket shooting is particularly effective for shooting scenes that cannot be retaken.

  Japanese Patent Application Laid-Open No. H11-163873 discloses a moving image pickup apparatus capable of performing auto bracketing imaging in which moving images are picked up with different exposure conditions for the same subject, wherein m (m is 2 or more) (Integer) types of exposure conditions are prepared, and imaging means for imaging at a frame rate of nxm (n is an integer of 2 or more) frames per second, and m types of exposure conditions are set when setting the exposure conditions in the imaging means. And exposure control means for sequentially switching and setting the exposure condition in a predetermined order for each frame. " This makes it possible to select moving image information with appropriate exposure conditions after capturing a moving image.

JP 2004-80376 A

  According to the invention described in Patent Literature 1, after capturing a moving image, moving image information with appropriate exposure conditions can be selected. However, it is impossible or difficult to perform imaging at a shutter speed lower than the frame rate and focus adjustment for each frame.

  Therefore, an object of the present invention is to generate a moving image obtained by performing bracket shooting with a high degree of freedom for an image generating apparatus, an image generating method, and an image generating program.

The present invention, in order to achieve the above object,
Acquisition means for acquiring a plurality of still images having different values of parameters related to imaging,
Image generation means for generating a moving image in which a plurality of still images acquired by the acquisition means are sequentially and temporally switched at different intervals according to a shooting scene ,
It comprising: a.

  According to the present invention, it is possible to generate a moving image obtained by performing bracket shooting with a high degree of freedom.

FIG. 2 is a top view and a rear view showing the appearance of the digital camera according to the embodiment. FIG. 1 is a schematic configuration diagram illustrating a digital camera. FIG. 6 is a logical block diagram related to bracket photographing processing and image generation processing by automatic setting. It is a figure showing the part concerning the automatic setting of the table. It is a figure showing the part concerning the manual setting of the table. It is a flowchart which shows an image generation process. FIG. 3 is a diagram illustrating a relationship between each captured image and a moving image. It is a figure showing the example of the picture which carried out bracket photography of the waterfall.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
This embodiment exemplifies a case in which the present invention is applied to a digital camera 1 as an image generating apparatus. FIGS. 1A and 1B show a top view and a rear view showing the appearance of the digital camera 1 which is the image generating apparatus. FIG. FIG. 1A shows a top view. FIG. 1B shows a rear view corresponding to the top view.
The digital camera 1 is a compact digital camera capable of shooting a still image, and has a bracket shooting function in addition to basic functions such as an imaging function and a timekeeping function.

As shown in the top view of FIG. 1A, an optical zoom lens 2 is provided on the front side of a main body 11 of the digital camera 1, and a display unit 4 is provided on the back side. Further, on the upper surface of the main body 11, a power button 31, a mode dial 32 for designating a shooting mode and the like, a zoom lever 33 for operating a TELE (telephoto side) / WIDE (wide angle side) zoom, And a shutter button 34 for executing the operation.
In the present embodiment, the optical zoom lens 2 is fixed to the main body 11. The display unit 4 is configured by a liquid crystal panel, and displays an image of a subject or the like. The display unit 4 is not limited to a liquid crystal panel. Further, the digital camera 1 itself does not have a display unit, and may communicate with another device to display an image of a subject on a display of the other device.

The power button 31 is a toggle button for switching the power of the digital camera 1 on and off.
The mode dial 32 is rotatably supported by the main body 11 of the digital camera 1 and is rotatable clockwise and counterclockwise. A plurality of mode names are printed radially and at substantially equal angles on the surface of the mode dial 32, and a triangle mark is printed on the main body 11 side.
The user can select the bracket photographing mode by rotating the mode dial 32 to match the printing of “BKT” with the triangular mark on the upper surface of the main body 11. The top view of FIG. 1A shows that the user has turned “BKT” of the mode dial 32 so as to match the triangular mark, and has selected the bracket shooting mode.

The zoom lever 33 is a common operator for issuing an instruction to adjust the zoom magnification of the optical zoom function and the digital zoom function. The zoom lever 33 is urged in the direction of 0 o'clock in the drawing by, for example, a spring or the like, and is rotated left and right by pressing left and right to detect TELE or WIDE operation information. The user adjusts the zoom magnification of the captured image by rotating the zoom lever 33 right or left. The zoom lever 33 is a zoom unit that changes the zoom magnification by using both the optical zoom lens 2 and the digital zoom function.
The shutter button 34 is a two-stage push-in (half-press, full-press) button for instructing start of photographing and the like. When the user half-presses the shutter button 34, the digital camera 1 controls the imaging mechanism to execute an AE (auto exposure) process, an AF (auto focus) process, and a shooting scene recognition process. Thereafter, when the user fully presses the shutter button 34, the digital camera 1 controls the imaging mechanism to execute photographing (capturing and recording of a captured image).

As shown in the rear view of FIG. 1B, a display unit 4 is provided on the back side of the main body 11 of the digital camera 1, and on the right side thereof, a control dial 35 and a set button 36 located at the center thereof. Are provided.
The control dial 35 is composed of up, down, left, and right buttons used for a playback image feed operation, a menu selection operation, and the like, and a dial that surrounds the buttons and can be assigned with various functions. There are manual focus, brightness correction, white balance, self-timer, manual setting of bracket shooting scene, and the like.
The set button 36 is a button for determining options on the screen displayed on the display unit 4 and can determine, for example, options for manual setting of a bracket shooting scene.

FIG. 2 is a schematic configuration diagram showing the digital camera 1. Here, the configuration relating to the bracket photographing mode is shown, and other configurations are omitted.
As shown in FIG. 2, the digital camera 1 includes an optical zoom lens 2, a CPU (Central Processing Unit) 5, a RAM (Random Access Memory) 51, and a ROM (Read Only Memory) 52. The digital camera 1 further includes a lens driving unit 53 controlled by the CPU 5, an imaging unit 54, the display unit 4, and a power supply unit 9 for supplying power to each unit. The optical zoom lens 2 further includes a zoom motor 21 and an aperture motor 22 controlled by a lens driving unit 53, and lens information 23 is stored in a storage unit (not shown). The lens information 23 includes a plurality of focal lengths in the optical zoom lens 2, information on a zoom magnification corresponding to each focal length, F-number, and minimum aperture value, and can be read by the CPU 5.

The CPU 5 executes a firmware program stored in the ROM 52 and stores temporary information in the RAM 51, thereby realizing each processing unit shown in FIG. 3 described later.
The lens driving unit 53 is, for example, a motor driver IC (Integrated Circuit), and controls the zoom motor 21 to mechanically switch the focal length (lens position) between WIDE (wide angle side) and TELE (telephoto side). The lens drive unit 53 further controls the aperture motor 22 to mechanically adjust the aperture.

The imaging unit 54 captures an image of a subject via the optical zoom lens 2 and supplies image data to the RAM 51. The imaging unit 54 includes, for example, a CMOS (Complementary Metal Oxide Semiconductor) sensor and an A / D conversion unit that converts an analog image signal output from the CMOS sensor into digital image data.
The display unit 4 displays a live view image, a review image after photographing, and a reproduced image, and also displays photographing information, reproduced information, and the like using characters, icons, graphics, and the like. Here, the live view image is obtained by reducing the image currently captured by the imaging unit 54 to the size of the display unit 4 and displaying it.
The power supply unit 9 is a circuit that includes, for example, a secondary battery and a DC-DC converter and supplies power to each unit of the digital camera 1 via a power supply line (not shown).

FIG. 3 is a logical block diagram related to bracket photographing processing and image generation processing.
The digital camera 1 includes a changing unit 61, a photographing unit 62, an image generating unit 63, a table 64, a moving speed measuring unit 65, a specifying unit 66, a subject number detecting unit 67, a moving state determining unit 68, and a focus distance measuring unit 69. It consists of.
The moving state determination unit 68 determines the moving state (whether or not moving) of the subject image included in the captured image by comparing the subject images included in the captured image between successive frames. The subject number detection unit 67 detects the subject of interest included in the captured image and the number thereof. The focus distance measuring unit 69 measures a focus distance for each of a plurality of regions in the captured image.

The specifying unit 66 recognizes a shooting scene based on the output information of the number-of-subjects detecting unit 67, the moving situation determining unit 68, and the focus distance measuring unit 69, and changes the parameters related to the shooting that the changing unit 61 changes according to the shooting scene. Identify the type of The shooting scene will be described later in detail with reference to FIG. 4 or FIG. The moving speed measuring unit 65 measures the moving speed of the moving subject image based on the number of pixels moving between consecutive frames of the subject image included in the captured image.
The changing unit 61 changes the parameter value of the parameter related to shooting so as to differ depending on the shooting scene specified by the specifying unit 66. The parameters changed by the changing unit 61 include a shutter speed, an aperture, a focus, and a white balance.
Each time the parameter value is changed by the changing unit 61, the image capturing unit 62 captures a captured image captured by the image capturing unit 54, performs bracket capturing processing, and acquires a plurality of still images.

  The image generating unit 63 generates one moving image that switches continuously in time from a plurality of still images acquired by the photographing unit 62. The image generation unit 63 can generate a moving image such that a still image is switched in a shorter time than the shutter speed captured by the imaging unit 62.

  The table 64 is a table in which shooting scenes, details of bracket shooting processing, and details of image generation processing are described. The photographing section 62 performs bracket photographing according to the photographing scene with reference to the table 64. The image generating unit 63 generates a moving image according to the shooting scene with reference to the table 64.

FIG. 4 is a diagram showing a portion related to the automatic setting of the table 64, which will be described with reference to FIGS.
《Shutter speed bracket shooting》
When the moving image is included in the captured image, the moving state determining unit 68 and the specifying unit 66 (see FIG. 3) specify that the parameter for changing the value is the shutter speed. That is, bracket shooting at the shutter speed is performed.

The setting method describes "change from the fastest shutter speed S1 at which the subject image is stationary to the shutter speed S2 at which the subject cannot be determined". With this setting method, the changing unit 61 (see FIG. 3) sets conditions for each parameter and the number of images to be photographed during bracket photographing. The fastest shutter speed S1 is a condition of a parameter at the time of bracket shooting of the shutter speed, and determines the number of shots, the switching time of each image when generating a moving image, and the switching order according to this.
The fastest shutter speed S1 at which the subject image stands still is calculated from the moving speed of the subject image measured by the moving speed measuring unit 65 (see FIG. 3). The shutter speed S2 at which the subject cannot be determined is calculated by substituting the fastest shutter speed S1 into the following equation (1).

The number of shots is equal to the number of times the changing unit 61 changes the shutter speed. In the present embodiment, the number of sheets is set according to the fastest shutter speed S1 at which the subject image stops.
The switching time is a time interval at which the generated moving image switches a plurality of still images during reproduction. The switching order is an order in which the generated moving image switches a plurality of still images at the time of reproduction. For example, when the fastest shutter speed S1 is less than 1/1000 second, the number of photographed images is 10, the switching time of each image when generating a moving image is 0.1 second, and the switching order is high speed → low speed → high speed. is there.

《Aperture bracket shooting》
When the subject of interest is detected in the foreground in the captured image and a distant view is present, the parameter whose value is changed by the subject number detection unit 67, the focus distance measurement unit 69, and the identification unit 66 (see FIG. 3) is an aperture. Is specified. That is, bracket shooting of the aperture is performed.
The setting method is described as "Adjust the focus on the target object and set according to the ratio between the F value A1 of the lens and the minimum aperture value A2." According to this setting method, the changing unit 61 (see FIG. 3) sets the condition and the number of shots for each parameter at the time of bracket shooting after performing focus adjustment on the target subject. The aperture ratio is a parameter condition at the time of bracket shooting, and the number of shots and the switching time and switching order of each image when generating a moving image are determined accordingly.
For example, when the aperture ratio is less than five times, the number of shots is three, the switching time of each image when generating a moving image is 0.3 seconds, and the switching order is open → minimum aperture → open.

《Bracket shooting of focus》
When a plurality of objects of interest exist at different distances in the captured image, the object number detecting unit 67 and the specifying unit 66 specify that the parameter whose value is to be changed is focus. That is, focus bracket shooting is performed.
The setting method describes "focus adjustment in order for each subject of interest". With this setting method, the changing unit 61 (see FIG. 3) sets conditions for each parameter and the number of images to be photographed during bracket photographing.
In the focus bracket shooting, the change unit 61 (see FIG. 3) sequentially performs focus adjustment and shooting for each subject of interest, so that the number of subjects of interest is equal to the number of shots. The switching time of each image when generating a moving image is 0.3 seconds, and the switching order is from the front to the back. The order of photographing the target subject does not always match the order of distance. Therefore, when a moving image is generated, each image may be switched in the order of distance.

FIG. 5 is a diagram showing a portion of the table 64 relating to manual setting.
《Shutter speed bracket shooting》
When the manually set shooting scene name is “subject image still”, “panning shot”, “subject image speed selection”, or “test shooting”, the parameter for which the changing unit 61 (see FIG. 3) changes the value is the shutter speed. It is. That is, bracket shooting at the shutter speed is performed. The setting method, the number of shots, and the switching time and switching order of each image when generating a moving image are determined according to each name.
For example, when the shooting scene name is “still image of the subject”, “1/1000 second to 1 second” is described in the setting method, and the number of shots is five. The switching time of each image when generating a moving image is 0.15 seconds, and the switching order is high speed → low speed → high speed.

《Aperture bracket shooting》
When the manually set shooting scene name is “aperture”, the parameter for which the changing unit 61 changes the value is the aperture. That is, bracket shooting of the aperture is performed.
The setting method is described as "set according to the ratio between lens F-number A1 and minimum aperture value A2". With this setting method, the changing unit 61 (see FIG. 3) sets conditions for each parameter and the number of images to be photographed during bracket photographing. Subsequent operations are the same as the operation of bracket photographing of the aperture at the time of the automatic setting described in FIG.

《Bracket shooting for white balance》
When the manually set shooting scene name is “sunlight and daylight white illumination” and “sunlight and light bulb color illumination”, the parameter for which the changing unit 61 changes the value is white balance. That is, bracket photography of white balance is performed.
For example, when the shooting scene name is “sunlight and daylight white lighting”, “5500K → 6500K” is described in the setting method. With this setting method, the changing unit 61 (see FIG. 3) changes the color temperature from 5500K to 6500K. The number of photographed images is three according to the color temperature difference. The switching time of each image when generating a moving image is 0.3 seconds, and the switching order is from low color temperature to high color temperature.

FIG. 6 is a flowchart showing the image generation processing. By this image generation processing, auto bracket shooting and generation of a moving image file are performed.
When the user fully presses the shutter button 34 (step S10), the image generation processing starts.
First, the specifying unit 66 (see FIG. 3) determines whether or not the shooting scene is set manually (step S11). If the shooting scene has been manually set (step S11 → Yes), the specifying unit 66 specifies the shooting scene that has been set manually, and proceeds to the process of step S13. If the shooting scene has not been manually set (step S11 → No), the specifying unit 66 acquires the moving state of the subject image, the number of subjects, the focus distance of each subject, and the like from the captured image in the immediately preceding live view image display. Then, the "shooting scene" is automatically recognized (specified) (step S12).

  The change unit 61 (see FIG. 3) refers to the table 64 described in detail in FIG. 4 or 5 to specify “parameters” and “setting methods” that change values from “shooting scene” (step S13). The “number of shots” is specified according to the “condition” for each “parameter” according to the specified “setting method” (step S14).

  The imaging unit 62 (see FIG. 3) performs bracket imaging with the specified “parameter”, “setting method”, and “number of images”, and acquires “a plurality of still images” (step S15).

  The image generation unit 63 (see FIG. 3) refers to the table 64 and specifies “switching time” and “switching order” when generating a moving image according to the “condition” for each specified “parameter”. (Step S16). Further, the image generation unit 63 generates a moving image in which the number of repetitions of the captured “plurality of still images” is infinite according to the specified “switching time” and “switching order” (step S17), and the processing in FIG. To end.

FIGS. 7A to 7D are diagrams showing the relationship between each captured image and a moving image.
FIG. 7A shows an image at the time of bracket shooting at a shutter speed with a setting of “fastest shutter speed” of 1/250 second and “number of shots” of five (see FIG. 4). The digital camera 1 (see FIG. 1) executes bracket shooting in the order of the images 71a to 71e according to the setting of the "number of shots" of five. The image 71a has a shutter speed of 1/250 second, the image 71b has a shutter speed of 1/80 second, the image 71c has a shutter speed of 1/30 second, the image 71d has a shutter speed of 1/12 second, and the image 71e has 1/4. Each is shot at a shutter speed of seconds.

FIG. 7B shows a moving image 81 generated from the images 71a to 71e by setting “switching time” 0.2 seconds and “switching order” from high speed to low speed (see FIG. 4).
The moving image 81 is configured to perform loop reproduction in the order from the image 71a to the image 71e according to the setting of “switching time” 0.2 seconds and “switching order” from high speed to low speed. The format of the moving image 81 is an animation GIF, but may be any moving image format such as motion JPEG. The shutter speed of the images 71d and 71e is lower than the shutter speed of a normal moving image. Thus, the digital camera 1 can generate a moving image obtained by performing bracket shooting with a high degree of freedom.

  FIG. 7C shows an image at the time of bracket shooting by setting the “fastest shutter speed” to 1/1000 second and the “number of shots” to 7 (see FIG. 4). The digital camera 1 executes bracket shooting in the order of the images 72a to 72g in accordance with the setting of the "number of shots" of seven. The image 72a has a shutter speed of 1/1000 second, the image 72b has a shutter speed of 1/300 second, the image 72c has a shutter speed of 1/100 second, the image 72d has a shutter speed of 1/30 second, and the image 72e has 1/10. A shutter speed of seconds, an image 72f is shot at a shutter speed of 1/3 second, and an image 72g is shot at a shutter speed of 1 second.

FIG. 7D shows a moving image 82 generated from the images 72a to 72e by setting the “switching time” to 0.15 seconds and the “switching order” high speed → low speed → high speed (see FIG. 4).
The moving image 82 is configured so that the number of repetitions is infinite in the order of the image 72a → the image 72g → the image 72a in accordance with the setting of “switching time” 0.15 seconds and “switching order” high speed → low speed → high speed. Is done. At the time of reproduction from the image 72g to the image 72a, the order is reverse to that of the shooting, and is different from the shooting order. Thus, the digital camera 1 can generate a moving image obtained by performing bracket shooting with a high degree of freedom.

(Effect of the present invention)
According to the present invention, the shutter speed and the number of shots are automatically set in accordance with the shooting scene to realize a shutter speed bracket shooting function for performing bracket shooting. For example, during the display of the live view image, the moving speed of the subject image is measured, the shutter speed and the number of images are automatically set, the shutter speed bracketing is performed, and a moving image is generated from a plurality of captured still images. With this moving image, the best shot can be selected in a short time from a plurality of bracketed images.
Even if the shutter speed can be changed during movie shooting, the shutter speed cannot exceed the frame rate during shooting. On the other hand, according to the present invention, a moving image can be generated from a still image captured at an arbitrary shutter speed, and a moving image subjected to bracket shooting with a high degree of freedom can be generated.

  The bracket shooting may be performed by using an aperture or a focus other than the shutter speed. In the present invention, shutter speed bracket shooting, aperture bracket shooting, and focus bracket shooting are automatically selected according to the shooting scene (shooting situation). Further, a plurality of still images are generated by switching at different time intervals according to the shooting scene. This makes it possible to easily generate a moving image on which bracket shooting has been performed.

(Modification)
The present invention is not limited to the above embodiments, and can be modified and implemented without departing from the spirit of the present invention. For example, there are the following (a) to (j).
(A) The shutter speed may not be automatically measured, but may be selected by the user from a menu.
(B) The switching order of each image in the moving image may be selectable by the user.
(C) The number of repetitions of the moving image may be selectable by the user, such as only once or a designated number.
(D) A plurality of moving images having different switching orders may be generated by one bracket shooting.
(E) The moving image may be generated in any switching order without being limited to the shooting order of the bracket shooting or the reverse order. For example, when a plurality of objects of interest are photographed, a moving image that switches temporally and continuously in an order different from the photographing order may be generated.
(F) When switching each still image, a known morphing technique may be applied to smooth the switching. In this case, the switching time may be set longer.
(G) The selection of white balance is not limited to sunlight, daylight white lighting, and bulb color lighting. Good.
(H) The lens is not limited to the optical zoom lens, but may be a fixed focus lens.
(I) The timing for automatically recognizing the shooting scene is not limited to after the shutter is fully pressed. The shooting scene may be automatically recognized during the live view.
(J) The plurality of still images used by the image generation unit 63 to generate a moving image are not limited to images shot by the shooting unit 62 immediately before generation of a moving image, but may be stored by the shooting unit 62 in the past and not shown. Alternatively, a still image stored in the unit or an image captured by another device may be obtained.

In the following, the inventions described in the claims first attached to the application form of this application are appended. The item numbers of the appended claims are as set forth in the claims originally attached to the application for this application.
(Appendix)
<Claim 1>
Acquisition means for acquiring a plurality of still images having different values of parameters related to imaging,
An image generating unit that generates a moving image in which a plurality of still images obtained by the obtaining unit are sequentially switched in time,
An image generating apparatus comprising:
<Claim 2>
A change unit for changing a value of a parameter related to imaging is further provided,
The obtaining unit obtains a plurality of still images by capturing a captured image captured by the imaging unit with different parameter values changed by the changing unit.
The image generating apparatus according to claim 1, wherein:
<Claim 3>
The parameter related to shooting is a shutter speed,
The obtaining unit performs shooting at different shutter speeds changed by the changing unit, and obtains a plurality of still images.
The image generating apparatus according to claim 2, wherein:
<Claim 4>
The image generating unit generates a moving image so that the still image is switched in a shorter time than the value of the shutter speed captured by the obtaining unit to obtain a still image,
The image generating apparatus according to claim 3, wherein:
<Claim 5>
The changing means changes a shutter speed so as to differ depending on a shooting scene.
The image generating apparatus according to claim 3, wherein:
<Claim 6>
The changing means changes the value of the shutter speed, or the number of times of change, so as to differ depending on the shooting scene,
The image generating apparatus according to claim 5, wherein:
<Claim 7>
The shooting target is a moving subject image,
Measuring means for measuring a moving speed of the moving subject image,
The changing means changes the shutter speed so as to differ according to the moving speed measured by the measuring means,
The image generating apparatus according to claim 3, wherein:
<Claim 8>
The changing means changes the value of the shutter speed, or the number of times of change, so as to differ according to the moving speed measured by the measuring means,
The image generating apparatus according to claim 7, wherein:
<Claim 9>
The changing means changes a parameter so as to differ depending on a shooting scene,
The image generating apparatus according to claim 2, wherein:
<Claim 10>
According to a shooting scene, further includes a specifying unit that specifies a type of a parameter related to shooting changed by the changing unit,
The changing means changes a parameter of a type specified by the specifying means,
The image generating apparatus according to claim 2, wherein:
<Claim 11>
Further comprising a detecting means for detecting a subject of interest included in the captured image,
The specifying unit specifies a type of a parameter related to imaging changed by the changing unit, according to a number of the subject of interest detected by the detecting unit.
The image generating apparatus according to claim 10, wherein:
<Claim 12>
Further provided is a determination unit that determines a movement state of the subject image included in the captured image,
The specifying unit specifies a type of a parameter related to imaging changed by the changing unit, according to a moving state determined by the determining unit.
The image generating apparatus according to claim 10, wherein:
<Claim 13>
Further comprising a distance measuring means for measuring a focus distance for each of a plurality of regions in the captured image,
The specifying unit specifies a type of a parameter related to imaging changed by the changing unit according to a plurality of focus distances measured by the distance measuring unit.
The image generating apparatus according to claim 10, wherein:
<Claim 14>
The image generating unit generates a moving image that switches temporally continuously during reproduction in an order different from the order of the plurality of still images acquired by the acquiring unit,
The image generating apparatus according to claim 13, wherein:
<Claim 15>
The image generating means generates a moving image in which a plurality of still images are switched in a different order according to a shooting scene.
The image generating apparatus according to claim 1, wherein:
<Claim 16>
The image generating unit generates a moving image in which a plurality of still images are switched at different intervals according to a shooting scene.
The image generating apparatus according to claim 1, wherein:
<Claim 17>
An acquisition process of acquiring a plurality of still images having different values of parameters related to imaging,
An image generation process of generating a moving image in which a plurality of still images acquired by the acquisition process are sequentially switched in time,
An image generation method comprising:
<Claim 18>
An acquisition function for acquiring a plurality of still images having different values of parameters related to shooting,
An image generation function of generating a moving image in which a plurality of still images acquired by the acquisition function are sequentially switched in time;
Image generation program for causing an image generation apparatus, which is a computer, to implement the above.

1 Digital camera (image generation device)
11 Main body 2 Optical zoom lens 21 Zoom motor 22 Aperture motor 23 Lens information 4 Display unit 5 CPU
51 RAM
52 ROM
53 lens drive unit 54 imaging unit 61 change unit (change means)
62 Photographing unit (acquisition means)
63 Image Generation Unit (Image Generation Means)
64 Table 65 Moving speed measuring unit (measuring means)
66 Specified part (specified means)
67 Subject Number Detection Unit (Detection Means)
68 Moving condition discriminating unit (discriminating means)
69 Focus distance measuring unit (distance measuring means)
71a-71e, 72a-72g Images 81, 82 Moving images 9 Power supply unit

Claims (16)

Acquisition means for acquiring a plurality of still images having different values of parameters related to imaging,
Image generation means for generating a moving image in which a plurality of still images acquired by the acquisition means are sequentially and temporally switched at different intervals according to a shooting scene ,
An image generating apparatus comprising: A change unit for changing a value of a parameter related to imaging is further provided,
The obtaining unit obtains a plurality of still images by capturing a captured image captured by the imaging unit with different parameter values changed by the changing unit.
The image generating apparatus according to claim 1, wherein: The parameter related to shooting is a shutter speed,
The obtaining unit performs shooting at different shutter speeds changed by the changing unit, and obtains a plurality of still images.
The image generating apparatus according to claim 2, wherein: The changing means changes a shutter speed so as to differ according to the shooting scene;
The image generating apparatus according to claim 2 , wherein: The changing means, the photographing differently depending on the scene, changing the number of times to the shutter speed value, or change,
The image generating apparatus according to claim 4 , wherein: The shooting target is a moving subject image,
Measuring means for measuring a moving speed of the moving subject image,
The changing means changes the shutter speed so as to differ according to the moving speed measured by the measuring means,
The image generating apparatus according to claim 3 , wherein: The changing means changes the value of the shutter speed, or the number of times of change, so as to differ according to the moving speed measured by the measuring means,
The image generating apparatus according to claim 6 , wherein: The changing means changes a parameter so as to differ depending on the shooting scene.
The image generating apparatus according to claim 2 , wherein: According to the shooting scene, further includes a specifying unit that specifies a type of a parameter related to shooting changed by the changing unit,
The changing means changes a parameter of a type specified by the specifying means,
The image generating apparatus according to claim 2, wherein: Further comprising a detecting means for detecting a subject of interest included in the captured image,
The specifying unit specifies a type of a parameter related to imaging changed by the changing unit, according to a number of the subject of interest detected by the detecting unit.
The image generating apparatus according to claim 9 , wherein: Further provided is a determination unit that determines a movement state of the subject image included in the captured image ,
The specifying unit specifies a type of a parameter related to imaging changed by the changing unit, according to a moving state determined by the determining unit.
The image generating apparatus according to claim 9 , wherein: Further comprising a distance measuring means for measuring a focus distance for each of a plurality of regions in the captured image,
The specifying unit specifies a type of a parameter related to imaging changed by the changing unit according to a plurality of focus distances measured by the distance measuring unit .
The image generating apparatus according to claim 9 , wherein: The image generating unit generates a moving image that switches temporally continuously during reproduction in an order different from the order of the plurality of still images acquired by the acquiring unit,
The image generating apparatus according to claim 12 , wherein: Detecting means for detecting a subject of interest included in the captured image;
Specifying means for specifying the type of parameter related to shooting according to the number of the subject of interest detected by the detection means,
Changing means for changing the type of parameter specified by the specifying means,
An acquisition unit configured to acquire a plurality of still images by capturing an image captured by the imaging unit with different parameter values changed by the changing unit;
An image generating unit that generates a moving image in which a plurality of still images obtained by the obtaining unit are sequentially switched in time,
An image generating apparatus comprising: An acquisition process of acquiring a plurality of still images having different values of parameters related to imaging,
An image generation process of generating a moving image in which a plurality of still images acquired by the acquisition process are sequentially and temporally switched at different intervals according to a shooting scene,
An image generation method comprising: An acquisition function for acquiring a plurality of still images having different values of parameters related to shooting,
An image generation function of generating a moving image in which a plurality of still images obtained by the obtaining function are sequentially and temporally switched at different intervals according to a shooting scene;
Image generation program for causing a computer of the image generation apparatus to implement the above.

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