JP6547318B2 - Imaging apparatus, imaging control method and program - Google Patents

Description

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

Conventionally, multi-area AF in which AF distance measurement is performed on a plurality of AF (Auto Focus) frames arranged on a captured image at the start of moving image shooting and the position of a focus lens focused on a predetermined AF frame is a focus position It is used.
At this time, for example, the in-focus state in each AF frame is determined by contrast AF or the like in which the focus position is the position of the focus lens at which the contrast of the captured image is the highest.
In addition, since moving image shooting is characterized in that the motion of the subject can be shot, the subject continues to perform AF distance measurement with respect to a plurality of AF frames based on the focus position of the in-focus AF frame during moving image shooting. The continuous AF is performed to track the movement of the lens and adjust the focus.
A technique related to AF control at the time of moving image shooting is described in, for example, Patent Document 1.

JP, 2014-149389, A

However, in the case of multi-area AF, for example, a method is used in which the position of the focus lens in focus in a larger number of AF frames is prioritized to be the focus position, etc. is there. In such a situation, the continuous AF can not follow the subject particularly when the subject is moving sharply, and the subject is removed from the imaging screen or moves significantly rapidly in the continuous AF. It is easy to occur. Then, when such a situation occurs, it takes a long time to perform focus adjustment for focusing on a subject intended by the user.
Such a situation may occur not only in focus adjustment but also in other imaging conditions such as exposure or white balance.

  The present invention has been made in view of such a situation, and it is an object of the present invention to maintain appropriate imaging conditions during moving image shooting.

In order to achieve the above object, the imaging device according to one aspect of the present invention is
It is a shooting device that shoots a movie, and
A first adjustment unit configured to adjust an imaging condition based on a measurement region in which a position in a captured image captured by the imaging unit is variable;
A second adjustment unit that adjusts an imaging condition based on a measurement area whose position in the captured image is fixed;
Adjustment control means for performing control to continue adjustment of the imaging conditions by the first adjustment means during moving image shooting;
Change instruction means for giving a change instruction of control for adjusting the imaging condition by the adjustment control means , triggered by the operation of a predetermined operator by the user ;
Equipped with
The adjustment control means interrupts the adjustment of the imaging condition by the first adjustment means according to the instruction of the change instructing means during the continuous adjustment of the imaging condition by the first adjustment means, and the second adjustment Adjustment of imaging conditions by the first adjustment unit is performed based on the imaging conditions adjusted by the second adjustment unit when an instruction by the change instruction unit is issued after adjustment of the imaging conditions by the unit is started To resume .

  According to the present invention, it is possible to maintain appropriate imaging conditions during moving image shooting.

It is a block diagram which shows the structure of the hardware of the imaging device which concerns on one Embodiment of this invention. FIG. 5 is a functional block diagram showing a functional configuration for executing a moving image shooting process among the functional configurations of the shooting apparatus of FIG. 1. FIG. 3A is a schematic view comparing the case where focus control is performed by multi-area AF with the case where focus control is performed by spot AF, and FIG. 3A shows a main subject (flower) located at a distance closer than the background. FIG. 3B shows a case where a main subject (person) at a distance farther than the background is located at the center of the image. It is a flowchart explaining the flow of the moving image imaging | photography process which the imaging device of FIG. 1 which has the functional structure of FIG. 2 performs. It is a flowchart explaining the flow of moving image continuous AF control processing executed in step S1 of the moving image shooting processing. FIG. 10 is a flowchart for explaining the flow of a moving image shooting process according to a modification 1; 15 is a flowchart illustrating the flow of a moving image shooting process according to a second modification.

  Hereinafter, embodiments of the present invention will be described using the drawings.

FIG. 1 is a block diagram showing a hardware configuration of an imaging device 1 according to an embodiment of the present invention.
The imaging device 1 is configured as, for example, a digital camera.

  The imaging apparatus 1 includes a lens unit 11, an imaging data processing unit 12, a contrast value output unit 13, an AF calculation unit 14, a lens drive control unit 15, a DMA (Direct Access) controller 16, and a DRAM (Dinamic Random Random). (Access Memory) interface 17, DRAM 18, strobe drive unit 19, strobe light emitting unit 20, ROM (Read Only Memory) 21, input unit 22, CPU (Central Processing Unit) 23, image processing unit 24, and And a VRAM (Video Random Access Memory) controller 25, a VRAM 26, a display unit 27, and a drive 28. Among these, the lens unit 11, the imaging data processing unit 12, the contrast value output unit 13, the AF calculation unit 14, and the lens drive control unit 15 constitute an imaging unit 1A.

The lens unit 11 includes a zoom lens 11 a, an exposure control unit 11 b, a focus lens 11 c, and an imaging device 11 d.
The zoom lens 11a freely changes the focal length in a fixed range.
The exposure control unit 11 b includes an aperture blade, an ND (Neutral Density) filter, a shutter, and the like, and controls the amount of exposure to the image sensor 11 d. In addition, when using ND filter as an aperture_diaphragm | restriction, it can also be set as the structure which does not have an aperture blade.
The focus lens 11c is a lens for forming an object image on the light receiving surface of the imaging element 11d, and is a lens for focusing the object by adjusting the position (focus position) by the lens drive control unit 15 described later. is there.
The imaging device 11 d is configured of, for example, a complementary metal oxide semiconductor (CMOS) photoelectric conversion device or the like. A subject image is incident on the imaging element 11 d via the lens unit 11. The imaging element 11d photoelectrically converts (photographs) a subject image at regular time intervals, and outputs an image signal acquired by photoelectric conversion as an analog signal. The fixed time for which the image signal is accumulated corresponds to the shutter speed.

  The imaging data processing unit 12 performs various signal processing such as A / D (Analog / Digital) conversion processing on analog image signals supplied from the imaging element 11 d to obtain digital image signals (hereinafter referred to as “imaging”. Generate an image). Here, in the captured image of the imaging device 1, one AF frame used in a matrix (for example, 5 rows × 5 columns matrix) AF frame used in multi area AF or spot AF is set. . The spot AF is a focus adjustment method of controlling the focus lens 11 c to a position where the subject of the AF frame is in focus by performing AF distance measurement in one AF frame. The captured image generated by the captured data processing unit 12 is output to the DMA controller 16 and referred to by the contrast value output unit 13.

The contrast value output unit 13 outputs the contrast value for the area within each AF frame in the captured image. The contrast value can be obtained, for example, as the difference in luminance between the darkest portion and the brightest portion in the area within each AF frame.
The AF calculation unit 14 calculates the focus position of the focus lens 11 c based on the contrast value output by the contrast value output unit 13 and outputs it. That is, the AF calculating unit 14 calculates and outputs the focus position of the focus lens 11 c which has the highest contrast value (maximum peak) in the AF frame determined by the CPU 23 as the AF frame to be focused.
The lens drive control unit 15 drives each lens in the lens unit 11. Specifically, the lens drive control unit 15 moves the focus lens 11 c in the optical axis direction based on the focus position calculated by the AF calculation unit 14. Further, the lens drive control unit 15 moves the zoom lens 11 a in the optical axis direction so as to be the instructed focal length in accordance with the instruction signal from the CPU 23.

The DMA controller 16 inputs the captured image output from the imaging data processing unit 12 to the DRAM 18 via the DRAM interface 17.
The DRAM interface 17 controls input and output of data in the DRAM 18.
Data and the like necessary for the CPU 23 to execute various processes are appropriately stored in the DRAM 18.

The strobe drive unit 19 controls the light emission of the strobe light emitting unit 20 in accordance with an instruction signal input from the CPU 23 according to a photographing condition or the like. For example, the flash drive unit 19 controls the light emission amount, the light emission time, and the like in the flash light emission unit 20.
The strobe light emitting unit 20 includes a light source such as a xenon discharge tube or a light emitting diode (LED), and causes the light source to emit light according to the control of the strobe driving unit 19.

The ROM 21 stores various programs executed by the CPU 23 and data used in various processes.
The input unit 22 includes various buttons and the like, and inputs various information to the CPU 23 in accordance with a user's instruction operation.
The CPU 23 executes various processes in accordance with the program stored in the ROM 21.
The image processing unit 24 executes compression processing and decompression processing of a captured image.

The VRAM controller 25 stores display data in the VRAM 26, and outputs display data stored in the VRAM 26 to the display unit 27.
The VRAM 26 stores display data input from the CPU 23 or the image processing unit 24 via the VRAM controller 25.
The display unit 27 performs screen display based on display data stored in the VRAM 26 input via the VRAM controller 25.

  The removable medium 29 made of a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is appropriately attached to the drive 28. The program read from the removable media 29 by the drive 28 is installed in the ROM 21 or the like as needed. The removable media 29 can also store various data such as image data stored in the DRAM 18 and the like in the same manner as the DRAM 18 and the like.

FIG. 2 is a functional block diagram showing a functional configuration for executing a moving image shooting process among the functional configurations of such a shooting apparatus 1.
The moving image shooting process refers to a series of processes for performing continuous AF while performing focus adjustment based on multi-area AF, and switching to focus adjustment based on spot AF and shooting a moving image according to a user's instruction. .

When moving image shooting processing is performed, as shown in FIG. 2, in the CPU 23, the AF adjustment control unit 51, the first AF adjustment unit 52, the second AF adjustment unit 53, and the AF frame setting unit 54 function. Do.
Further, an image storage unit 71 is set in an area of the DRAM 18.
The image storage unit 71 stores data of a captured image captured by the moving image capturing process.

  The AF adjustment control unit 51 operates the first AF adjustment unit in response to an operation of a predetermined operation on the input unit 22 (for example, half depression of the shutter button or depression of the “SET” key installed at the center of the cross key) The focus adjustment by 52 and the focus adjustment by the second AF adjustment unit 53 are switched. In the present embodiment, the AF adjustment control unit 51 causes the first AF adjustment unit 52 to execute continuous AF in a normal state during moving image shooting, and the second AF adjustment unit 53 is operated when a predetermined operator is operated. Run Spot AF by.

  The first AF adjustment unit 52 performs continuous AF by multi-area AF in which the AF distance measurement is performed on a plurality of AF frames, and the position of the focus lens to be focused in any of the AF frames is the focus position. . Specifically, the first AF adjustment unit 52 is based on the peak at which the contrast of the captured image in the plurality of AF frames is maximized (searched for the contrast value) output from the AF calculation unit 14 and in the initial stage of focus adjustment. The position of the focus lens where the number of AF frames at which the peak is maximum is larger is taken as the focus position. That is, among subjects whose distance to the subject is considered to be the same, a subject having a wider area is given priority. In addition, after focusing on any subject, the first AF adjustment unit 52 moves the focus lens in a predetermined range before and after the present focus position, and the peak of the contrast of the captured image in each AF frame is As a result of the detection, the position of the focus lens at which the peak is maximum is continuously focused on a specific subject as the focus position.

When a predetermined operator is operated, the second AF adjustment unit 53 performs AF ranging with respect to one AF frame, and detects the peak of the contrast of the captured image in this AF frame, thereby making the peak maximum. The position of the focusing lens that is Specifically, the second AF adjustment unit 53 maximizes this peak based on the peak at which the contrast of the captured image in the one AF frame output from the AF calculation unit 14 is the largest (searching for the contrast value). The position of the focus lens is taken as the focus position.
The AF frame setting unit 54 sets a plurality of AF frames for multi-area AF or sets one AF frame for spot AF in accordance with an instruction from the first AF adjusting unit 52 or the second AF adjusting unit 53. Do. The AF frame of the spot AF is fixedly set at the center of the captured image while the focus adjustment is performed.

With such a configuration, the imaging device 1 operates a predetermined operation element when the subject is not in focus while performing continuous AF while performing AF adjustment with multi-area AF. It is possible to switch to spot AF.
In this way, when the continuous AF can not follow the subject, the focus adjustment by multi-area AF is performed, and it is suppressed that the AF frame focusing on the main subject, such as the background of the main subject is more focused. Can be focused on the subject intended by the user. In addition, when the continuous AF can not follow the subject, it is possible to quickly focus on the subject.

FIG. 3 is a schematic view comparing the case where focus control by multi-area AF is performed and the case where focus control by spot AF is performed.
As shown in FIG. 3A, the main subject (flower) located at a closer distance is located at the center of the image, and the background (plural buildings) located at a distance greater than the main subject is located around the main subject. In this case, when focus control by multi-area AF is performed, the background may be in focus (a shaded area in FIG. 3A) having a larger area. On the other hand, when focus control by spot AF is performed, the focus is placed on the main subject (shaded portion in FIG. 3A) at the position of the center AF frame.
Also, as shown in FIG. 3B, the main subject (person) at a longer distance is located at the center of the image, and a background (leaf) at a distance closer than the main subject is located around the main subject. In this case, when focus control by multi-area AF is performed, the background may be in focus (a shaded area in FIG. 3B) having a larger area. On the other hand, when focus control by spot AF is performed, the main subject (shaded portion in FIG. 3B) at the position of the center AF frame is focused.

Next, the operation will be described.
[Video shooting process]
FIG. 4 is a flowchart for explaining the flow of a moving image shooting process performed by the shooting apparatus 1 of FIG. 1 having the functional configuration of FIG.
The moving image shooting process is started when the shooting apparatus 1 is set to a shooting mode for shooting a moving image and execution of the continuous AF is instructed.

In step S1, the AF adjustment control unit 51 executes a moving image continuous AF control process (described later) by the first AF adjustment unit 52.
In step S2, the AF adjustment control unit 51 determines whether or not a predetermined operator as described above has been operated.
If a predetermined operator has been operated, YES is determined in step S2, and the process proceeds to step S3.
On the other hand, when the predetermined operator is not operated, it is determined as NO in step S2, and the process shifts to step S1 to repeat the moving picture continuous AF control process.

In step S3, the AF adjustment control unit 51 switches the focus adjustment to the spot AF by the second AF adjustment unit 53, and the AF frame setting unit 54 sets one AF frame at the center of the captured image.
In step S4, the second AF adjustment unit 53 moves the focus lens 11c, and searches for the contrast value in the AF frame for spot AF set at the center of the captured image.
In step S5, the second AF adjustment unit 53 determines whether the position of the focus lens 11c (that is, the focus position) at which the contrast value in the AF frame for spot AF set at the center of the captured image reaches a peak is detected. Make a decision.
If the focus position is not detected, it is determined as NO in step S5, and the process proceeds to step S4.
When the focus position is detected, YES is determined in step S5, and the process proceeds to step S6.

In step S6, the second AF adjustment unit 53 moves the focus lens 11c to the focus position. As a result, the subject in the AF frame at the center of the captured image is in focus.
In step S7, the AF adjustment control unit 51 ends the focus adjustment (spot AF adjustment) by the second AF adjustment unit 53.
After step S7, the process returns to step S1, and the moving image continuous AF control process is repeated from the focus position moved by the second AF adjustment unit 53.

[Video continuous AF control processing]
Next, the moving image continuous AF control process executed in step S1 of the moving image shooting process will be described.
FIG. 5 is a flow chart for explaining the flow of the moving image continuous AF control process executed in step S1 of the moving image shooting process.
In step S11, the AF frame setting unit 54 sets a plurality of AF frames for multi-area AF in the image.

In step S12, as shown in FIGS. 3A and 3B, the first AF adjusting unit 52 determines whether or not it is the first operation in focus control for continuous AF.
If it is the first operation in focus control for continuous AF, YES is determined in step S12, and the process proceeds to step S13.

In step S13, the first AF adjustment unit 52 moves the focus lens 11c, and searches for the contrast value in each AF frame.
In step S16, the first AF adjusting unit 52 determines whether or not the position of the focus lens 11c (ie, the focus position) at which the contrast value in any of the AF frames reaches a peak is detected.
In step S17, the first AF adjustment unit 52 moves the focus lens 11c to the focus position. As a result, the subject in a predetermined AF frame is brought into focus.
In step S18, the AF adjustment control unit 51 ends the focus adjustment (multi-area AF adjustment) by the first AF adjustment unit 52.
After step S18, the process returns to step S12.

On the other hand, if it is not the first operation in focus control for continuous AF, it is determined as NO in step S12, and the process proceeds to step S14.
In step S14, the first AF adjustment unit 52 sets the focus adjustment to a stable state (a state in which the search for the contrast value is stopped).
In step S <b> 15, the first AF adjustment unit 52 determines whether there is a change in the focus adjustment environment (such as movement of the subject or change in the angle of view).
If there is no environmental change in focus adjustment, NO is determined in step S15, the process proceeds to step S14, and the determination in step S15 is repeated while maintaining the setting of the stable state.
If there is an environmental change in focus adjustment, YES is determined in step S15, and the process proceeds to step S13. From here, unlike at the time of the first operation, detection of the focus position based on the current focus position is performed.
When the preset time has elapsed, the moving image continuous AF control process is ended, and the process returns to the moving image shooting process.

With such processing, when a predetermined operator is operated, the subject is focused on the subject at the center of the captured image by spot AF, and thereafter multi-area AF is continued with reference to the focus position of the subject at the center of the captured image .
Therefore, it is possible to quickly focus on the subject intended by the user.

[Modification 1]
In the above-described embodiment, when a predetermined operator is operated during execution of multi-area AF, the case in which multi-area AF is resumed after focusing on an object at the center of a captured image by spot AF will be described as an example. did. On the other hand, after focusing on the subject at the center of the captured image by spot AF, the focus lock is performed to fix the focus position while the operation of the predetermined operation is continued (for example, the depression of the predetermined operation is continued). It is good also as execution.

FIG. 6 is a flowchart for explaining the flow of the moving image shooting process according to the first modification.
In the moving image shooting process shown in FIG. 6, the same steps as those in the moving image shooting process shown in FIG.

In FIG. 6, the processes of steps S1 to S6 are the same as the moving image shooting process shown in FIG.
After step S6, in step S601, the second AF adjustment unit 52 fixes the focus position (focus lock) by fixing the position of the focus lens 11c moved in step S6.

In step S602, the AF adjustment control unit 51 determines whether or not the operation of a predetermined operator has been released.
If the operation of the predetermined operator has not been canceled, it is determined as NO in step S602, and the process proceeds to step S601.
On the other hand, when the operation of the predetermined operator is released, it is determined as YES in step S602, and the process proceeds to step S7.
The process of step S7 is the same as the moving image shooting process shown in FIG.

  With such processing, by focusing on a subject at the center of a captured image by spot AF by operating a predetermined operation, focus lock is performed while the predetermined operation is continuously operated. be able to.

[Modification 2]
In the above-described embodiment, when a predetermined operator is operated during execution of multi-area AF, the case in which multi-area AF is resumed after focusing on an object at the center of a captured image by spot AF will be described as an example. did. On the other hand, as in the first modification, after focusing on the subject at the center of the captured image by spot AF, focus lock may be performed to fix the focus position. However, in the second modification, instead of executing the focus lock while the operation of the predetermined operator is continuously operated, the focus lock is performed when the predetermined operator is operated once. When the same predetermined operator is operated again, the focus lock is released.

FIG. 7 is a flowchart for explaining the flow of the moving image shooting process according to the second modification.
In the moving image shooting process shown in FIG. 7, the same steps as those in the moving image shooting process shown in FIG.
In FIG. 7, the process from step S1 to step S6 is the same as the moving image shooting process shown in FIG. 4.
After step S6, in step S611, the second AF adjustment unit 52 fixes the focus position (focus lock) by fixing the position of the focus lens 11c moved in step S6.

In step S612, the AF adjustment control unit 51 determines whether a predetermined operator has been operated again.
If the predetermined operator has not been operated, NO is determined in step S612, and the process proceeds to step S611.
On the other hand, when a predetermined operator is operated, YES is determined in step S612, and the process proceeds to step S7.
The process of step S7 is the same as the moving image shooting process shown in FIG.

  With such processing, it is possible to execute focus lock until the predetermined operation element is operated again after the predetermined operation element is operated to focus on the subject at the center of the captured image by the spot AF. .

Second Embodiment
The first embodiment has been described by way of example in which switching from multi-area AF by the first AF adjustment unit 52 to spot AF by the second AF adjustment unit 53 is performed in response to operation of a predetermined operator.
On the other hand, in the imaging device 1 of the second embodiment, it is assumed that the multi-area AF by the first AF adjustment unit 52 is automatically switched to the spot AF by the second AF adjustment unit 53.
Specifically, determination unit 55 (shown in FIG. 1) determines whether or not the AF adjustment control unit 51 is operating normally AF (that is, whether or not the focus position is determined within a predetermined time). (Not shown), and automatically switched from multi-area AF by the first AF adjustment unit 52 to spot AF by the second AF adjustment unit 53 when the determination unit 55 determines that the continuous AF is not operating normally. .

  Such a function corresponds to the process of step S2 in the moving image shooting process shown in FIG. 4 of the first embodiment, and the AF adjustment control unit 51 determines whether the continuous AF is operating normally. It can be realized by replacing. That is, when the determination unit 55 determines that the continuous AF is not operating normally in step S2, the AF adjustment control unit 51 causes the process to proceed to step S3, whereby the first AF adjustment unit 52 It is possible to automatically switch from multi-area AF to spot AF by the second AF adjustment unit 53.

[Modification 3]
In each embodiment described above, the user may designate one AF frame for performing spot AF via the input unit 22.
Specifically, one of a plurality of AF frames for multi-area AF can be selected, or an AF frame of a predetermined size can be set to an arbitrary position in one pixel unit.
Also, the size and shape of the AF frame may be arbitrarily designated by the user via the input unit 22.
As a result, it is possible to flexibly specify the position, size, or shape of the subject intended by the user and perform focus adjustment by the spot AF.

[Modification 4]
In each of the above-described embodiments, in the focus adjustment, the case of switching between multi-area AF and spot AF has been described as an example, but the present invention can be similarly applied to other imaging conditions. For example, with regard to automatic exposure (AE) or automatic white balance (AWB), multi-area control and spot control can be performed, and for which imaging conditions, these controls are to be switched using a menu screen or key operation May be selected by the user.
This makes it possible to appropriately adjust various imaging conditions during moving image shooting.

The imaging apparatus 1 configured as described above includes an AF adjustment control unit 51, a first AF adjustment unit 52, a second AF adjustment unit 53, and an input unit 22.
The first AF adjustment unit 52 adjusts the imaging condition based on the measurement area in which the position in the captured image captured by the imaging unit 1A is variable.
The second AF adjustment unit 53 adjusts the imaging condition based on the measurement area whose position in the captured image is fixed.
The AF adjustment control unit 51 performs control to continue adjustment of the imaging conditions by the first AF adjustment unit 52 during moving image shooting.
The input unit 22 or the determination unit 55 instructs to change the control for adjusting the imaging condition by the AF adjustment control unit 51.
The AF adjustment control unit 51 interrupts the adjustment of the imaging condition by the first AF adjustment unit 52 by the instruction of the input unit 22 or the determination unit 55 during the continuous adjustment of the imaging condition by the first AF adjustment unit 52, and performs the second AF adjustment Adjustment of the imaging conditions by the unit 53 is started.
Thereby, in the imaging apparatus 1, when the imaging condition adjustment is performed based on the measurement area in which the position in the captured image is variable, a change instruction of the control for adjusting the imaging condition is performed, Adjustment of the imaging condition is performed based on the measurement area whose position in the captured image is fixed.
Therefore, the imaging condition can be promptly adjusted to the subject intended by the user.
Therefore, appropriate imaging conditions can be maintained during moving image shooting.

In addition, the first AF adjustment unit 52 sequentially adjusts the imaging conditions while changing the measurement area used to determine the imaging condition, based on each measurement result that changes during moving image shooting in the plurality of measurement areas.
In addition, the second AF adjustment unit 53 sequentially adjusts the imaging condition based on the measurement result which changes during the moving image shooting in the measurement area which is a fixed and designated in advance.
Thus, moving image shooting can be performed by appropriately switching the adjustment of imaging conditions based on a plurality of measurement areas in a captured image and the adjustment of imaging conditions based on a measurement area that is a predetermined and fixed in the captured image. Can.

Further, the AF adjustment control unit 51 starts the adjustment of the imaging condition by the second AF adjustment unit 53 by the instruction of the input unit 22, and after the adjustment is completed, the imaging condition adjusted by the second AF adjustment unit 53 is used as a reference. Adjustment of imaging conditions by the first AF adjustment unit 52 is restarted.
Thereby, after the imaging condition adjustment is performed based on the measurement area in which the position in the captured image is fixed, the adjustment of the imaging condition is performed based on the plurality of measurement areas in the captured image based on the imaging condition. It can be carried out.
Therefore, the imaging condition can be promptly adjusted to the subject intended by the user.

Further, the AF adjustment control unit 51 starts the adjustment of the imaging condition by the second AF adjustment unit 53 by the operation of the input unit 22, and after the adjustment is completed, until the instruction by the input unit 22 is performed next , Hold the state of completion of the adjustment.
In this way, imaging can be performed while fixing the imaging conditions adjusted based on the measurement area whose position in the captured image is fixed.

Further, when the instruction by the input unit 22 is performed next, the AF adjustment control unit 51 resumes the adjustment of the imaging conditions by the first AF adjustment unit 52 on the basis of the imaging conditions adjusted by the second AF adjustment unit 53. Do.
As a result, the imaging conditions can be adjusted again based on the plurality of measurement areas in the captured image based on the imaging conditions adjusted based on the measurement area in which the position in the captured image is fixed.

Further, the input unit 22 instructs the change of control for adjusting the imaging condition by the AF adjustment control unit 51 in response to an operation by a predetermined operator by the user during moving image shooting.
Thereby, the adjustment method of the imaging condition can be switched by the operation of the user.

In addition, the determination unit 55 determines whether the adjustment of the imaging condition by the first AF adjustment unit 52 is normally performed during moving image shooting.
When the determination unit 55 determines that the adjustment of the imaging condition by the first AF adjustment unit 52 is not properly performed, in the AF adjustment control unit 51, an instruction to start the adjustment of the imaging condition by the second AF adjustment unit 53 Is done.
Thereby, the adjustment of the imaging condition by the first AF adjustment unit 52 can be automatically switched to the adjustment of the imaging condition by the second AF adjustment unit 53.

In addition, the first AF adjustment unit 52 adjusts the imaging condition based on the plurality of measurement areas in the captured image.
The second AF adjustment unit 53 adjusts the imaging condition based on any one of the plurality of measurement areas.
Thereby, in the adjustment of the imaging condition by the second AF adjustment unit 53, any of the measurement areas in the adjustment of the imaging condition by the first AF adjustment unit 52 can be selected to adjust the imaging condition.

Further, the input unit 22 sets an area that the second AF adjustment unit 53 uses to adjust the imaging condition, from a plurality of measurement areas by a predetermined operation of the user.
As a result, it is possible to flexibly designate the area of the subject intended by the user and perform focus adjustment by spot AF.

The first AF adjusting unit 52 and the second AF adjusting unit 53 adjust any one or a combination of focus, exposure, and white balance as an imaging condition.
This makes it possible to appropriately adjust various imaging conditions during moving image shooting.

  The present invention is not limited to the above-described embodiment, and modifications, improvements, and the like in the range in which the object of the present invention can be achieved are included in the present invention.

  In the above-described embodiment, even if a key to which another specific function is assigned is used as a predetermined operation element for switching between the focus adjustment by the first AF adjustment unit 52 and the focus adjustment by the second AF adjustment unit 53. Good. For example, when the photographing apparatus 1 includes an AF lock key for manually performing focus lock or an AE (Automatic Exposure) lock key for manually locking the aperture value, these keys are used as predetermined operators. It may be shared.

  Further, it is possible to configure the imaging device 1 by appropriately combining the functions shown in the above-described respective embodiments, modifications and the like.

Moreover, in the above-mentioned embodiment, although the imaging device 1 to which this invention is applied was demonstrated as an example of the digital camera, it is not specifically limited to this.
For example, the present invention can be applied to electronic devices in general having a focus adjustment function. Specifically, for example, the present invention is applicable to a laptop personal computer, a video camera, a portable navigation device, a portable telephone, a smartphone, a portable game machine, and the like.

The series of processes described above can be performed by hardware or software.
In other words, the functional configuration of FIG. 2 is merely illustrative and not particularly limited. That is, it is sufficient if the photographing apparatus 1 is equipped with a function capable of executing the above-described series of processes as a whole, and what functional block is used to realize this function is not particularly limited to the example of FIG.
Further, one functional block may be configured by hardware alone, may be configured by software alone, or may be configured by a combination of them.

When the series of processes are executed by software, a program that configures the software is installed on a computer or the like from a network or a recording medium.
The computer may be a computer incorporated in dedicated hardware. The computer may be a computer capable of executing various functions by installing various programs, for example, a general-purpose personal computer.

  The recording medium including such a program is not only configured by the removable medium 29 of FIG. 1 distributed separately from the apparatus main body to provide the program to the user, but also the user in a state incorporated in advance in the apparatus main body The recording medium etc. provided to The removable medium 29 is composed of, for example, a magnetic disk (including a floppy disk), an optical disk, or a magneto-optical disk. The optical disc is composed of, for example, a CD-ROM (Compact Disk-Read Only Memory), a DVD (Digital Versatile Disk), a Blu-ray (registered trademark) Disc (Blu-ray Disc), or the like. The magneto-optical disk is configured by an MD (Mini-Disk) or the like. Further, the recording medium provided to the user in a state of being incorporated in advance in the apparatus main body is configured by, for example, the ROM 21 of FIG. 1 in which a program is recorded.

  In the present specification, in the step of describing the program to be recorded on the recording medium, the processing performed chronologically along the order is, of course, parallel or individually not necessarily necessarily chronologically processing. It also includes the processing to be performed.

  While some embodiments of the present invention have been described above, these embodiments are merely illustrative and do not limit the technical scope of the present invention. The present invention can take other various embodiments, and furthermore, various changes such as omissions and substitutions can be made without departing from the scope of the present invention. These embodiments and modifications thereof are included in the scope and the gist of the invention described in the present specification, etc., and are included in the invention described in the claims and the equivalent scope thereof.

The invention described in the claims at the beginning of the application of the present application is appended below.
[Supplementary Note 1]
It is a shooting device that shoots a movie, and
A first adjustment unit configured to adjust an imaging condition based on a measurement region in which a position in a captured image captured by the imaging unit is variable;
A second adjustment unit that adjusts an imaging condition based on a measurement area whose position in the captured image is fixed;
Adjustment control means for performing control to continue adjustment of the imaging conditions by the first adjustment means during moving image shooting;
Change instructing means for instructing change of control for adjusting the imaging condition by the adjustment control means;
Equipped with
The adjustment control means interrupts the adjustment of the imaging condition by the first adjustment means according to the instruction of the change instructing means during the continuous adjustment of the imaging condition by the first adjustment means, and the second adjustment An imaging apparatus characterized in that adjustment of imaging conditions by means is started.
[Supplementary Note 2]
The first adjustment means sequentially adjusts the imaging condition while changing the measurement region used to determine the imaging condition, based on each measurement result changing during moving image shooting in a plurality of measurement regions.
The imaging device according to claim 1, wherein the second adjustment unit sequentially adjusts the imaging condition based on a measurement result which changes during shooting of a moving image in a measurement area which is a fixed and designated in advance.
[Supplementary Note 3]
The adjustment control means starts adjusting the imaging condition by the second adjusting means according to the instruction of the change instructing means, and after the adjustment is completed, the imaging condition adjusted by the second adjusting means is used as a reference. The photographing apparatus according to any one of the above 1 to 3, wherein the adjustment of the imaging condition by the first adjustment unit is restarted.
[Supplementary Note 4]
The adjustment control means starts the adjustment of the imaging condition by the second adjustment means by the operation of the change instruction means, and after the adjustment is completed, until the instruction by the change instruction means is next performed. The imaging device according to claim 1 or 2, wherein a state in which the adjustment has been completed is held.
[Supplementary Note 5]
The adjustment control means resumes the adjustment of the imaging condition by the first adjustment means on the basis of the imaging condition adjusted by the second adjustment means when an instruction by the change instructing means is subsequently performed. The imaging device according to appendix 4.
[Supplementary Note 6]
8. The change instruction means instructs change of control for adjusting the imaging condition by the adjustment control means, triggered by an operation by a user during shooting of a moving image by the user. The imaging device described in one.
[Supplementary Note 7]
The apparatus further comprises a determination unit that determines whether the adjustment of the imaging condition by the first adjustment unit is normally performed during moving image shooting,
The change instructing unit causes the adjustment control unit to perform imaging by the second adjustment unit when it is determined that the adjustment of the imaging condition by the first adjustment unit is not normally performed by the determination unit. The imaging device according to appendix 1, wherein an instruction to start adjustment of the condition is issued.
[Supplementary Note 8]
The first adjustment unit adjusts imaging conditions based on a plurality of measurement areas in a captured image;
The imaging apparatus according to claim 2, wherein the second adjustment unit adjusts an imaging condition based on any one of a plurality of measurement areas.
[Supplementary Note 9]
The imaging according to appendix 8, further comprising: area setting means for setting an area used by the second adjustment means for adjusting the imaging condition by a predetermined operation of the user among a plurality of measurement areas. apparatus.
[Supplementary Note 10]
The first adjustment means and the second adjustment means adjust any one or a combination of focus, exposure, and white balance as an imaging condition. Shooting device described in
[Supplementary Note 11]
An imaging control method that is executed in an imaging device that captures moving images, comprising
A first adjustment process of adjusting imaging conditions based on a measurement area whose position in the captured image captured by the imaging means is variable;
A second adjustment process of adjusting an imaging condition based on a measurement area in which a position in a captured image is fixed;
Adjustment control processing for performing control to continue adjustment of the imaging conditions by the first adjustment processing during moving image shooting;
A change instruction process for instructing a control change for adjusting the imaging condition by the adjustment control process;
Including
In the adjustment control process, the adjustment of the imaging condition by the first adjustment process is interrupted by an instruction in the change instruction process during the continuous adjustment of the imaging condition by the first adjustment process, and the second adjustment process is performed. An imaging control method characterized in that adjustment of imaging conditions by adjustment processing is started.
[Supplementary Note 12]
In a computer that controls an imaging device that shoots a movie,
A first adjustment function of adjusting an imaging condition based on a measurement region in which a position in a captured image captured by the imaging unit is variable;
A second adjustment function of adjusting an imaging condition based on a measurement region in which a position in a captured image is fixed;
An adjustment control function that performs control to continue adjustment of the imaging condition by the first adjustment function during moving image shooting;
A change instruction function for instructing change of control for adjusting the imaging condition by the adjustment control function;
Equipped with
The adjustment control function interrupts the adjustment of the imaging condition by the first adjustment function according to an instruction of the change instruction function during continuous adjustment of the imaging condition by the first adjustment function, and the second adjustment is performed. A program characterized by starting adjustment of imaging conditions by a function.

  DESCRIPTION OF SYMBOLS 1 ... imaging device, 1A ... imaging part, 11 ... lens unit, 11a ... zoom lens, 11b ... exposure control part, 11c ... focus lens, 11d ... imaging element, 12: imaging data processing unit, 13: contrast value output unit, 14: AF operation unit, 15: lens drive control unit, 16: DMA controller, 17: DRAM interface, 18 ... DRAM, 19 ... strobe drive unit, 20 ... strobe light emitting unit, 21 ... ROM, 22 ... input unit, 23 ... CPU, 24 ... image processing unit, 25 · · · · · VRAM controller, 26 · · · VRAM, 27 · · · display unit, 28 · · · drive, 29 · · · · removable media, 51 · · · AF adjustment control unit, 52 · · · 1st AF adjustment unit, 53 · The 2AF adjuster, 54 ... AF frame setting unit, 55 ... determining unit, 71 ... image storage unit

Claims (9)

It is a shooting device that shoots a movie, and
A first adjustment unit configured to adjust an imaging condition based on a measurement region in which a position in a captured image captured by the imaging unit is variable;
A second adjustment unit that adjusts an imaging condition based on a measurement area whose position in the captured image is fixed;
Adjustment control means for performing control to continue adjustment of the imaging conditions by the first adjustment means during moving image shooting;
Change instruction means for giving a change instruction of control for adjusting the imaging condition by the adjustment control means , triggered by the operation of a predetermined operator by the user ;
Equipped with
The adjustment control means interrupts the adjustment of the imaging condition by the first adjustment means according to the instruction of the change instructing means during the continuous adjustment of the imaging condition by the first adjustment means, and the second adjustment Adjustment of imaging conditions by the first adjustment unit is performed based on the imaging conditions adjusted by the second adjustment unit when an instruction by the change instruction unit is issued after adjustment of the imaging conditions by the unit is started An imaging device characterized by resuming . The first adjustment means sequentially adjusts the imaging condition while changing the measurement region used to determine the imaging condition, based on each measurement result changing during moving image shooting in a plurality of measurement regions.
The imaging apparatus according to claim 1, wherein the second adjustment unit sequentially adjusts an imaging condition based on a measurement result changing during moving image photographing in a measurement area which is a fixed and designated in advance.   The adjustment control means starts adjusting the imaging condition by the second adjusting means according to the instruction of the change instructing means, and after the adjustment is completed, the imaging condition adjusted by the second adjusting means is used as a reference. 3. The photographing apparatus according to claim 1, wherein the adjustment of the imaging condition by the first adjustment unit is restarted. The adjustment control means, the indication of the change instruction unit, the second to start adjustment of the imaging conditions by adjusting means, after the adjustment is completed, until the instruction by prior Symbol change instructing means is performed, the The image pickup apparatus according to claim 1, wherein a state in which the adjustment is completed is held. The first adjustment unit adjusts imaging conditions based on a plurality of measurement areas in a captured image;
The imaging device according to any one of claims 1 to 4, wherein the second adjustment unit adjusts an imaging condition based on any one of a plurality of measurement areas . 6. The apparatus according to claim 5 , further comprising an area setting unit configured to set an area used by the second adjustment unit to adjust the imaging condition by a predetermined operation of the user among a plurality of measurement areas . Shooting device. The first adjustment means and the second adjustment means adjust any one or a combination of focus, exposure, white balance or the like as an imaging condition . The imaging device according to item 1 . An imaging control method that is executed in an imaging device that captures moving images, comprising
A first adjustment process of adjusting imaging conditions based on a measurement area whose position in the captured image captured by the imaging means is variable;
A second adjustment process of adjusting an imaging condition based on a measurement area in which a position in a captured image is fixed;
Adjustment control processing for performing control to continue adjustment of the imaging conditions by the first adjustment processing during moving image shooting;
A change instruction process of performing a control change instruction of adjusting the imaging condition by the adjustment control process, triggered by an operation of a predetermined operator by the user;
Including
In the adjustment control process, the adjustment of the imaging condition by the first adjustment process is interrupted by an instruction in the change instruction process during the continuous adjustment of the imaging condition by the first adjustment process, and the second adjustment process is performed. When an instruction by the change instruction process is performed after the adjustment of the imaging condition by the adjustment process is started, the imaging condition by the first adjustment process is set based on the imaging condition adjusted by the second adjustment process. An imaging control method characterized by resuming adjustment. In a computer that controls an imaging device that shoots a movie,
A first adjustment function of adjusting an imaging condition based on a measurement region in which a position in a captured image captured by the imaging unit is variable;
A second adjustment function of adjusting an imaging condition based on a measurement region in which a position in a captured image is fixed;
An adjustment control function that performs control to continue adjustment of the imaging condition by the first adjustment function during moving image shooting;
A change instruction function of performing a control change instruction of adjusting the imaging condition by the adjustment control function in response to an operation of a predetermined operator by the user;
Equipped with
The adjustment control function interrupts the adjustment of the imaging condition by the first adjustment function according to an instruction of the change instruction function during continuous adjustment of the imaging condition by the first adjustment function, and the second adjustment is performed. Adjustment of imaging conditions by the first adjustment function based on imaging conditions adjusted by the second adjustment function when an instruction by the change instruction function is issued after adjustment of imaging conditions by a function is started A program characterized by resuming.

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