JP2012099984A - Imaging device, and display control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging device capable of preventing photographing failures caused by a shutter time lag with ease and with certainty.SOLUTION: A digital camera 10 has: a finder device 15 having a finder window 16, an observation window 17 for observing a subject optical image incoming from the finder window 16, a half mirror 63 provided between the finder window 16 and the observation window 17 and transmitting the subject optical image in a direction of the observation window 17, and a liquid crystal display device 61 projecting a display image on the half mirror 63 to make the display image reflect in the direction of the observation window 17; and an imaging element 21a. The digital camera 10 also has a memory 36 storing frames from a second frame prior to the last first frame by a time period corresponding to a shutter time lag of the digital camera 10 to the first frame among a plurality of frames obtained by continuous imaging by the imaging element 21a, and a display controller 41 displaying the second frame among the frames stored in the memory 36 on the liquid crystal display device 61.

Description

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

  In a conventional digital camera, after the photographer operates the shutter release operation member and before the actual exposure operation by the image sensor or the like is performed, for example, mechanical driving such as aperture operation of the aperture blade by the aperture mechanism The action is executed. For this reason, a time lag, that is, a shutter time lag occurs between the time when the shutter release operation is performed and the time when the exposure operation to the image sensor is started.

  In general, in a digital camera, a photographer performs a shutter release operation while checking a subject image with an optical viewfinder (hereinafter also referred to as OVF) or an electronic viewfinder (hereinafter also referred to as EVF). Yes.

  However, when shooting a moving object (moving object), even if a shutter release operation is performed after confirming that the moving object is in the center of the shooting range by OVF or EVF, the moving object has moved by the shutter time lag. Therefore, the image intended by the photographer cannot be obtained.

  For this reason, the photographer repeatedly feels whether the moving object can be recorded in the middle when the shutter release operation is performed at which position in the shooting range indicated by the OVF or EVF. There is a problem that it is necessary to take a picture and wear it, and a photo opportunity is missed during this work.

  As a digital camera that solves such problems, the data of all pixels during through-image capture that is performed before the shutter release operation is stored in the memory as RAW data, and the RAW data when the shutter release operation is performed is stored. A product (conventional product) that records still image data obtained by signal processing on a recording medium is known.

  Patent Document 1 discloses a digital camera equipped with an OVF and an EVF, in which the shutter time lag when using the OVF and the shutter time lag when using the EVF are set to the same time.

  In Patent Document 2, an image obtained by photographing a range wider than the shooting range of a digital camera with a detachable finder device and the shooting range of the digital camera are displayed together, so that the subject is in the shooting range. A digital camera that makes it easy to check the timing of entering is disclosed.

JP 2005-309083 A JP 2003-87626 A

  Since the conventional product needs to store a large amount of RAW data in a memory, a large-capacity memory is required, resulting in an increase in product cost.

  In addition, when trying to cope with a subject moving at high speed, it is necessary to increase the frame rate for signal readout. To that end, it is necessary to design the system so that processing can be performed at high speed, and the cost of the device There are problems such as an increase in power consumption, a decrease in the number of shots due to an increase in power, an increase in cost due to measures against temperature rise of the device, and an increase in set size.

  Since the digital cameras described in Patent Documents 1 and 2 cannot know the amount of movement of the subject for the shutter time lag time, it is necessary to grasp the timing for performing the shutter release operation by repeatedly performing shooting as described above. Miss out.

  Further, even if the timing for performing the shutter release operation by repeatedly performing shooting is grasped, the timing is sensuous, and thus a shooting mistake cannot be prevented completely.

  The present invention has been made in view of the above circumstances, and provides a low-cost, small-sized, low-power-consumption imaging apparatus that can easily and reliably prevent shooting failure due to a shutter time lag, and a display control method thereof. The purpose is to provide.

  An imaging apparatus according to the present invention includes a finder window that is directed toward a subject, a photographer-side finder viewing window that looks into a light image of the subject that is incident from the finder window, and between the finder window and the photographer-side finder viewing window. A half mirror that transmits a light image of the subject in the direction of the photographer side finder viewing window, and a display device that projects a display image on the half mirror and reflects the reflected image in the direction of the photographer side viewfinder viewing window. An image pickup device including a viewfinder device and an image pickup device, wherein a plurality of frames obtained by continuous image pickup with the image pickup device are a time before the shutter time lag of the image pickup device before the latest first frame. A storage unit for storing at least frames from the second frame to the latest first frame; and a frame stored in the storage unit. At least a portion of the second frame of the over-time in which and a display control unit for controlling the display of displaying on the display device.

  With this configuration, from the photographer-side viewfinder viewing window, the optical image of the subject incident from the viewfinder window is the amount of time before the shutter time lag of the imaging device than the latest first frame obtained by imaging with the imaging device. At least a part of the second frame is superimposed and displayed. For example, the second frame itself is superimposed and displayed on the optical image of the subject incident from the viewfinder window, so that the photographer can locate the moving object included in the subject before the shutter time lag. Can be easily and accurately confirmed by the second frame. Therefore, it is possible to prevent a shooting mistake caused by the shutter lime lag by performing shooting after matching the moving object position included in the subject with the position where the moving object included in the second frame is displayed. .

  In addition, according to this configuration, since at least the frames from the second frame to the first frame need only be stored in the storage unit, it is possible to prevent an increase in the capacity of the storage unit and reduce manufacturing costs. Can do.

  The display control method of the present invention includes a finder window that is directed toward a subject, a photographer-side finder viewing window that looks into the light image of the subject that is incident from the finder window, and a space between the finder window and the photographer-side viewing window. A half mirror that transmits a light image of the subject in the direction of the photographer side finder viewing window, and a display device that projects a display image on the half mirror and reflects the reflected image in the direction of the photographer side viewfinder viewing window. A display control method in an imaging device including a finder device and an imaging device including a time of a shutter time lag of the imaging device from a latest first frame among a plurality of frames obtained by continuous imaging with the imaging device The frame stored in the storage unit that stores at least the frames from the second frame one minute ago to the latest first frame. Those comprising a display control step for controlling the display to display at least a portion of said second frame to said display device of the beam.

  According to the present invention, it is possible to provide a low-cost, small-sized, low-power consumption imaging apparatus and a display control method thereof that can easily and reliably prevent a shooting failure due to a shutter time lag.

1 is an external perspective view of a digital camera for explaining an embodiment of the present invention. 1 is an internal block diagram of the digital camera 10 shown in FIG. The figure for demonstrating operation | movement at the time of the moving body imaging | photography mode of the digital camera 10. The figure which shows schematic structure of the digital camera 20 which is the 1st modification of the digital camera 10 shown in FIG. The figure for demonstrating operation | movement at the time of the moving body imaging | photography mode of the digital camera 20. The figure for demonstrating operation | movement at the time of the moving body imaging | photography mode of the digital camera 20. The figure for demonstrating operation | movement at the time of the moving body imaging | photography mode of the digital camera 20. The figure for demonstrating operation | movement at the time of the moving body imaging | photography mode of the digital camera 20. The figure for demonstrating operation | movement at the time of the moving body imaging | photography mode of the digital camera 20. Flowchart for explaining the operation of the digital camera 20 shown in FIG. The figure for demonstrating operation | movement at the time of the moving body imaging | photography mode of the digital camera 20.

  Embodiments of the present invention will be described below with reference to the drawings. Hereinafter, a digital camera as an imaging apparatus will be described.

  FIG. 1 is an external perspective view of a digital camera for explaining an embodiment of the present invention.

  The digital camera 10 includes a rectangular housing 11, a retractable lens barrel 12 is provided at the center of the front, and a photographing lens (focus alignment lens, zoom lens, etc.) 13 is accommodated in the lens barrel 12. Yes.

  A shutter release button 14 is provided on one side of the upper end surface of the casing 11, and a hybrid finder device 15, which will be described in detail later, is provided in the casing 11 on the opposite side of the shutter release button 14. Yes. A subject-side finder window 16 of the finder device 15 is provided at a corner on the front surface of the housing 11, and a photographer-side finder viewing window 17 of the finder device 15 is provided on the rear side.

  FIG. 2 is an internal block diagram of the digital camera 10 shown in FIG.

  The digital camera 10 includes a CCD solid-state imaging device 21a, a photographing lens 13 (a zoom lens 13a and a focusing lens 13b) placed in front of the solid-state imaging device 21a, a diaphragm (iris) 24, and the like. A CDSAMP (correlated double sampling (CDS), gain control amplifier (AMP)) 25a that performs analog signal processing on an output signal (captured image signal) of the solid-state imaging device 21a, and an analog digital that converts the output signal of the CDSAMP 25a into a digital signal (A / D) A converter 26a and a finder device 15 are provided.

  The solid-state image pickup device 21a is a CCD type in this example, but may of course be another type of solid-state image pickup device such as a CMOS type.

  In the finder device 15, an objective lens 65, an OVF shutter 62, and a prism 66 having a half mirror 63 inside are housed in this order between the subject side finder window 16 and the photographer side finder viewing window 17. .

  The OVF shutter 62 is inserted between the objective lens 65 and the prism 66 to block light (“closed” state), and is retracted from between the objective lens 65 and the prism 66 to block light. ("Open" state). The OVF shutter 62 may be one that inserts and removes a shielding plate, or may be a liquid crystal shutter.

  The half mirror 63 is installed at an angle of 45 degrees with respect to the incident optical axis L from the subject, and an EVF liquid crystal display device 61 is installed adjacent to the half mirror 63 and parallel to the incident optical axis L. Yes. As a result, when the OVF shutter 62 is in the “open” state, the incident light from the subject transmitted through the half mirror 63 and the light emitted from the liquid crystal display device 61 and reflected by the half mirror 63 overlap each other. Projected to the eyes.

  The half mirror 63 is preferably made of, for example, a silver film that transmits 50% light and reflects 50% light, but is not limited to this ratio. Other ratios may be used, for example, films that transmit 70% (or 60%) light and reflect 30% (or 40%) light, or conversely, transmit 30% (or 40%) light. A film that reflects 70% (or 60%) of light may be used as long as both transmitted light and reflected light exist.

  The drive mechanisms of both lenses 65 and 13a are connected internally so that the zoom magnification of the objective lens 65 and the zoom magnification of the zoom lens 13a change in conjunction with each other, and the zoom lens 13a zooms to enlarge the subject. When displayed, the OVF optical image in the viewfinder is also enlarged.

  By setting the OVF shutter 62 to the “open” state and the EVF liquid crystal display device 61 to the non-display state, the finder device 15 is used as an optical viewfinder (OVF), and the OVF shutter 62 is set to the “closed” state. In addition, by setting the EVF liquid crystal display device 61 to the display state, the finder device 15 is used as an electronic viewfinder (EVF).

  Further, by setting the OVF shutter 62 in the “open” state and the EVF liquid crystal display device 61 in the display state, the information displayed on the liquid crystal display device 61 while confirming the composition of the subject with the optical viewfinder. At the same time in the same finder frame.

  The digital camera 10 further includes an image input controller 31 that captures a digital captured image signal output from the A / D converter 26a, an arithmetic processing unit (CPU) 32 that performs overall control of the entire digital camera 10, and an image. An image signal processing circuit 33 that performs image processing on the captured image signal captured by the input controller 31 to generate captured image data, and an AF detection circuit 34 that detects a focal position from the captured image signal output from the solid-state image sensor 21a. An AE & AWB detection circuit 35 for automatically detecting exposure amount and white balance, a memory (SDRAM) 36 as a storage unit used as a work memory, and a display information generation unit 38 for generating display information to be displayed on the liquid crystal display device 61 Compressing the captured image data after image processing into a JPEG or MPEG image The captured image or live view image is displayed on the logic circuit 39 and the liquid crystal display device 40 provided on the back of the camera or the like, and the display information generated by the display information generation unit 38 is displayed on the liquid crystal display device 61 in the finder device 15. A display control unit 41 that displays the image, a media controller 43 that stores the captured image data in the recording medium 42, and a bus 44 that interconnects them.

  The digital camera 10 further includes a motor driver 46 that supplies a drive pulse to the drive motor of the zoom lens 13a, a motor driver 47 that supplies a drive pulse to the motor that drives the position of the focus lens 13b, and an aperture control of the aperture 24. A motor driver 48 for supplying a drive pulse to the drive motor for performing the operation, a motor driver 53 for supplying a drive pulse to the motor for controlling the position of the OVF shutter 62, a timing generator 49 for supplying a drive timing pulse to the solid-state imaging device 21a, and These operate based on a command from the CPU 32. The CDSAMP 25a also operates based on a command from the CPU 32.

  The CPU 32 is further connected to a switch 51 for switching between the photographing mode / playback mode and a shutter release button 14 of a two-stage shutter. Based on a user instruction input from the switch 51 and the shutter release button 14, the CPU 32 performs digital The camera 10 is controlled.

  The digital camera 10 is equipped with a moving object photographing mode suitable for photographing a moving object.

  Hereinafter, the operation of the digital camera 10 in the moving body shooting mode will be described in detail.

  When the moving body shooting mode is set, the CPU 32 controls the motor driver 53 to open the OVF shutter, and then causes the image sensor 21a to start continuous imaging.

  Each time an image for one frame is picked up by the image pickup device 21a, the picked-up image signal output from the image pickup device 21a is image-processed by the image signal processing circuit 33, and the picked-up image data for one frame (hereinafter simply referred to as a frame). ) And the frame is stored in the memory 36.

  The memory 36 stores the shutter time lag of the digital camera 10 from the latest frame obtained by imaging with the imaging device 21a among the plurality of frames obtained by imaging with the imaging device 21a during the moving body shooting mode. At least n frames up to the previous frame are stored.

  For example, when the image sensor 21a captures 30 frames per second, if the shutter time lag is 1/10 second, n = 4.

  When the number of frames generated by the image signal processing circuit 33 exceeds n after the moving body shooting mode is set, the oldest frame among the frames stored in the memory 36 is deleted and generated. The latest frame is newly stored.

  When n frames are stored in the memory 36, the display information generation unit 38 reads a frame generated at the oldest time among the n frames and inputs the frame to the display control unit 41 as display information. .

  After the n frames are stored in the memory 36, the display information generation unit 38 inputs the frame generated at the oldest time to the display control unit 41 every time a new frame is stored in the memory 36. I do.

  The display control unit 41 causes the liquid crystal display device 61 to display the input frame.

  FIG. 3 is a diagram for explaining the operation of the digital camera 10 in the moving object shooting mode. FIG. 3 shows an example of shooting an airplane P moving from the left to the right in front of the digital camera 10.

  When the subject light image (OVF image) that is transmitted from the subject-side finder window 16 through the half mirror 63 and enters the photographer's eyes is the one shown in FIG. 3A in FIG. The EVF image) is (n−1) frames before the latest frame obtained by imaging the OVF image shown in FIG. 3A with the imaging device 21a, and is as shown in FIG. 3B in FIG.

For this reason, as shown in FIG. 3C, an image in which the FIG. 3B EVF image overlaps the FIG. 3A OVF image can be confirmed from the photographer side viewfinder viewing window 17 of the viewfinder device 15. In FIG. 3, reference sign P _EVF is attached to the airplane P included in the EVF image.

The photographer pans the digital camera 10 to the right, which is the moving direction of the airplane P, so that the airplane P overlaps the position where the airplane P _EVF was displayed while viewing the image shown in FIG. 3C. FIG. 3D shows the state at this time.

  When the image seen from the photographer side viewfinder viewing window 17 of the viewfinder device 15 becomes as shown in FIG. 3D, the photographer half-presses the shutter release button 14 to give an AE / AF instruction, and then the shutter release. The button 14 is fully pressed to give a shooting instruction. When a shooting instruction is given, the CPU 32 takes an image with the imaging device 21 a, and the shot image data obtained by the imaging is recorded on the recording medium 42.

  When a shooting instruction is given when an image that can be seen from the photographer side viewfinder viewing window 17 of the finder device 15 becomes the one shown in FIG. 3D, a time (shutter) corresponding to (n−1) frames from the time when the shooting instruction is given. After the elapse of time lag), the image pickup device 21a takes an image. For this reason, the captured image obtained by this imaging is the one shown in FIG. 3E, and the captured image with the airplane P in the middle can be recorded.

  As described above, according to the digital camera 10, in the moving body shooting mode, the shutter time lag of the digital camera 10 is greater than the latest frame (the frame in which the OVF image being confirmed by the viewfinder device) is captured by the imaging device 21a. In order to display the previous frame on the liquid crystal display device 61, the photographer can compare the position of the moving object included in the frame displayed on the liquid crystal display device 61 with the position of the moving object included in the OVF image. It is possible to easily know the amount of movement of the moving object for the time lag time.

  Therefore, shooting is performed after moving the digital camera 10 in the same direction as the moving direction of the moving object by the amount of movement corresponding to the shutter time lag time of the moving object (the OVF image is displayed at the moving object display position included in the frame displayed on the EVF). The shooting is performed after moving the digital camera 10 so that the moving objects included in the image overlap with each other.) As shown in FIG. 3E, a captured image with the main subject at the center can be obtained, and shooting failures are reliably eliminated. Can do.

  Further, according to the digital camera 10, the memory 36 includes n frames from the latest frame obtained by imaging with the imaging device 21a to a frame before the shutter time lag of the digital camera 10 from the latest frame. Therefore, it is not necessary to have a large-capacity memory unlike conventional products, and an increase in manufacturing cost of the digital camera 10 can be prevented.

  In addition, according to the digital camera 10, the frame obtained by imaging with the image sensor 21 a is displayed with a delay corresponding to the time of the shutter time lag, so an attempt was made to deal with a subject moving at high speed. Even in this case, it is not necessary to increase the frame rate for signal reading. For this reason, it is possible to prevent problems such as an increase in cost, a decrease in the number of shots due to an increase in power, an increase in cost due to a temperature rise countermeasure and an increase in set size.

  Note that the display control unit 41 captures an image with the image sensor 21a only when an instruction for setting shooting conditions such as AE / AF is given (when the shutter release button 14 is half-pressed) in the moving body shooting mode. Display control for displaying on the liquid crystal display device 61 a frame before the shutter time lag of the digital camera 10 before the latest frame may be started.

  By doing so, the photographer can confirm only the OVF image from the photographer-side viewfinder viewing window 17 of the viewfinder device 15 until the view angle (composition) is determined, so that the angle of view can be adjusted. It becomes easy.

  Hereinafter, modifications of the digital camera 10 illustrated in FIG. 1 will be listed.

(First modification)
FIG. 4 is a diagram showing a schematic configuration of a digital camera 20 which is a first modification of the digital camera 10 shown in FIG. The digital camera 20 shown in FIG. 4 has the same configuration as the digital camera 10 shown in FIG. 1 except that a moving object detection unit 37 is added.

  The moving object detection unit 37 detects moving objects included in the subject being imaged by the image sensor 21a, using a plurality of frames obtained by sequentially capturing images by the image sensor 21a.

  Specifically, a moving body included in these two frames is detected by comparing the latest frame with a frame immediately before the frame among a plurality of frames obtained by sequentially capturing images with the image sensor 21a.

  When two frames are stored in the memory 36, the moving object detection unit 37 starts the moving object detection process by comparing the latest frame stored in the memory 36 with the frame immediately before the frame. Each time the 36 data is updated, the moving object detection process is performed.

  With this moving object detection process, a moving object can be detected from each of the n frames stored in the memory 36.

  The display information generation unit 38 of the digital camera 20 cuts out only the moving body portion detected by the moving body detection unit 37 from the oldest n frames stored in the memory 36, and displays the cut out moving body portion. Information.

  The display control unit 41 of the digital camera 20 detects the moving object detected by the moving object detection unit 37 among the oldest frames of n frames stored in the memory 36 according to the display information generated by the display information generation unit 38. Only the portion is displayed on the liquid crystal display device 61.

  FIG. 5 is a diagram for explaining the operation of the digital camera 20 in the moving object shooting mode. FIG. 5 shows an example of shooting an airplane P that moves in front of the digital camera 20 from left to right.

When n frames are stored in the memory 36 and the subject (OVF image) being imaged by the image sensor 21a is as shown in FIG. 5A in FIG. 5, an image (EVF) displayed on the liquid crystal display device 61 is displayed. The image) is only a moving object (airplane P _EVF ) included in (n−1) frames before the latest frame obtained by capturing the OVF image shown in FIG. 5A, as shown in FIG. 5B in FIG. It will be a thing.

  For this reason, as shown in FIG. 5C, an image in which the EVF image of FIG. 5B overlaps the OVF image of FIG. 5A can be confirmed from the photographer side viewfinder viewing window 17 of the viewfinder device 15.

Thus, by displaying only the moving object (airplane P _EVF ) included in the oldest frame stored in the memory 36 on the liquid crystal display device 61, it is possible to prevent the OVF image from becoming difficult to see.

  The display information generation unit 38 of the digital camera 20 may generate, as display information, an image in which the oldest frame other than the moving body portion detected by the moving body detection unit 37 is black.

  In this case, when the OVF image is as shown in FIG. 6A in FIG. 6, the EVF image is as shown in FIG. 6B in FIG. The display device such as the liquid crystal display device 61 performs black display by not emitting light, and therefore the portion displayed in black cannot be viewed from the photographer side viewfinder viewing window 17.

For this reason, as shown in FIG. 6C, an image in which only the airplane P _EVF of FIG. 6B overlaps the OVF image of FIG. 6A can be confirmed from the photographer side viewfinder viewing window 17 of the viewfinder device 15.

For example, if the image shown in FIG. 6B in FIG. 6B is a white image other than the plane P _EVF , the light in the white image portion overlaps the OVF image. The color of the OVF image in the observation image that can be seen from the image becomes light.

For this reason, it is possible to prevent the OVF image from becoming difficult to see when a black image other than the plane P _EVF is displayed on the liquid crystal display device 61.

  The display information generation unit 38 of the digital camera 20 may extract a contour of a moving object detected by the moving object detection unit 37 from the oldest frame and generate the contour as display information.

  In this case, when the OVF image is as shown in FIG. 7A in FIG. 7, the EVF image is as shown in FIG. 7B in FIG. For this reason, as shown in FIG. 7C, an image in which the EVF image of FIG. 7B overlaps the OVF image of FIG. 7A can be confirmed from the photographer side viewfinder viewing window 17 of the viewfinder device 15. By doing in this way, the visibility of an OVF image can be improved more.

In the EVF image shown in FIG. 7B in FIG. 7, the outline of the airplane P _EVF needs to be displayed in a color other than black. Particularly preferable is the case where the outline of the airplane P _EVF is a complementary color of the background color around the airplane P included in the oldest frame.

By making the outline of the airplane P _EVF such a complementary color, the visibility of the outline of the airplane P _EVF in the observation image shown in FIG. 7C of FIG. 7 can be improved.

In the EVF image shown in FIG. 7B in FIG. 7, all parts other than the outline of the airplane P _EVF are displayed in black, so that the visibility of the OVF image in the observation image shown in FIG. 7C in FIG. 7 can be further improved.

  The moving object detection unit 37 of the digital camera 20 may have a function of detecting the moving direction and moving speed of the moving object detected from the subject being imaged.

  In this case, the display information generation unit 38 of the digital camera 20 extends in the moving direction of the moving object detected from the oldest frame together with the moving object detected by the moving object detection unit 37 among the oldest frames or the outline of the moving object. A scale line is generated as display information.

  8 and 9 show an example of an observation image observed from the photographer-side viewfinder viewing window 17 of the viewfinder device 15 when the display information generation unit 38 of the digital camera 20 includes a scale line in the display information. It is a figure.

As shown in FIGS. 8 and 9, the liquid crystal display device 61 displays the scale line M extending horizontally with the moving direction of the moving body in addition to the moving body or the outline of the moving body, so that the airplane P _EVF and the airplane P The amount of movement of the shutter time lag can be easily recognized by the photographer by the scale line M.

As shown in FIG. 9, the starting point of the scale line M is set as the tip of the airplane P _EVF , and the scale line M is extended in the direction in which the airplane P is moving, thereby displaying the shutters of the airplane P _EVF and the airplane P. The movement amount corresponding to the time lag can be easily recognized by the photographer.

Further, the scale interval of the scale line M is roughened when the moving speed of the moving object included in the oldest frame is fast, and fined when the moving speed is slow, so that the shutter time lag of the airplane P _EVF and the airplane P is reduced. Can be easily recognized by the photographer.

  In the following, as the display information to be displayed on the liquid crystal display device 61 by the display control unit 41, the contour of the moving object detected by the moving object detection unit 37 is set as a complementary color of the background color of the moving object, and the portion other than the contour is black. An example of the operation of the digital camera 20 when generating the processed image will be described with reference to a flowchart.

  FIG. 10 is a flowchart for explaining an example of the operation of the digital camera 20 shown in FIG.

  When the moving body shooting mode is set, the display control unit 41 displays all the pixels of the liquid crystal display device 61 in black (step S1).

  Next, when a plurality of frames are generated by imaging by the imaging element 21a, the moving object detection unit 37 acquires the latest frame and the previous frame (step S2), and compares these frames. Then, a moving object detection process for detecting a moving object included in these frames is performed (step S3).

  Next, the moving object detection unit 37 detects the moving direction and moving speed of the moving object detected in step S3 (step S4).

  Next, the display information generation unit 38 detects the contour of the moving object detected by the moving object detection unit 37 from the oldest frame among the n frames stored in the memory 36 (step S5). The background color of the moving object in the frame is detected (step S6).

  Next, the display information generation unit 38 sets the color of the contour detected in step S5 from the oldest frame among the n frames stored in the memory 36 as the complementary color of the background color detected in step S6. An image in which a portion other than the contour is black is generated as display information (step S7).

  Next, it is determined whether or not an AE / AF instruction (imaging condition setting instruction) has been made based on whether or not the shutter release button 14 has been pressed halfway. If no imaging condition setting instruction has been issued, the process proceeds to step S3. Is returned, and when an instruction to set the shooting conditions is given, the process of step S9 is performed.

  In step S9, the display control unit 41 causes the liquid crystal display device 61 to display the display information generated by the display information generation unit 38 in step S7. After step S9, if there is a shooting instruction by fully pressing the shutter release button 14, the image pickup device 21a picks up the image, and the shot image data generated by this shooting is recorded on the recording medium 42 and is recorded once. The shooting processing operation ends.

(Second modification)
So far, the description has been made on the assumption that the same moving object as the moving object included in the latest frame is included in the frame before the shutter time lag from the latest frame imaged by the image sensor 21a.

  However, when the moving speed of the moving object is large, the same moving object as the moving object included in the latest frame is not included in the frame before the shutter time lag from the latest frame imaged by the image sensor 21a. There is also a possibility.

In such a case, even when n frames are stored in the memory 36, the observation image observed from the photographer side viewfinder viewing window 17 of the viewfinder device 15 is the one shown in FIG. _{The EVF} image cannot be confirmed. With this, it is impossible to know the amount of movement of the airplane P for the shutter time lag time, and it is difficult to prevent shooting mistakes.

  Therefore, in the digital camera 20, when the moving speed of the moving object detected by the moving object detection unit 37 is equal to or higher than the threshold value, the CPU 32 performs electronic zoom control for narrowing the recording range of the frame obtained by imaging with the image sensor 21a. .

  When the moving speed of the moving object detected by the moving object detection unit 37 is equal to or higher than the threshold, the CPU 32 detects the recording range in the frame obtained by imaging with the image sensor 21a from the center of the frame by the moving object detection unit 37. Set the moving object to the moving direction.

  When the moving speed of the moving object detected by the moving object detection unit 37 is equal to or higher than the threshold, the display information generation unit 38 of the digital camera 20 shows the frame W corresponding to the recording range set by the CPU 32 as shown in FIG. Is displayed on the liquid crystal display device 61.

  By displaying the frame W on the liquid crystal display device 61, the photographer can know which range of the OVF image is recorded at the time of photographing.

  When the photographer moves the digital camera 20 to the lower left so that the plane P comes to the center of the frame W, the distance from the left end of the plane P to the left end of the OVF image increases, and n is stored in the memory 36. The oldest frame among the frames is also included in the airplane P.

As a result, the observation image becomes as shown in FIG. 11C in FIG. 11, and the finder device 15 can confirm the image of the airplane P _EVF before the shutter time lag time together with the OVF image.

  As described above, when the moving speed of the moving object is equal to or higher than the threshold value, the photographer can be notified that the moving speed of the moving object is high by displaying the frame W corresponding to the electronic zoom range on the liquid crystal display device 61. At the same time, the digital camera 20 can be prompted to move. As a result, even when the moving speed of the moving object is high, it is possible to prevent a shooting mistake.

  The size of the frame W may be determined according to the moving speed of the moving object (plane P) detected by the moving object detection unit 37. For example, the frame W may be reduced as the moving speed increases, and the frame W may be increased as the moving speed decreases.

  Further, the digital camera 20 may always detect the moving object by the moving object detection unit 37 during shooting, and automatically shift to the moving object shooting mode when the moving object is detected.

  As described above, the following items are disclosed in this specification.

  The disclosed imaging apparatus includes a finder window that is directed toward a subject, a photographer-side finder viewing window that looks into the light image of the subject that is incident from the finder window, and a space between the finder window and the photographer-side finder viewing window. A half mirror that transmits a light image of the subject in the direction of the photographer side finder viewing window, and a display device that projects a display image on the half mirror and reflects the reflected image in the direction of the photographer side viewfinder viewing window. An image pickup device including a viewfinder device and an image pickup device, wherein a plurality of frames obtained by continuous image pickup with the image pickup device are a time before the shutter time lag of the image pickup device before the latest first frame. A storage unit that stores at least frames from the second frame to the latest first frame, and is stored in the storage unit At least a portion of the second frame of the frame is intended and a display control unit that performs display control to display on the display device.

  The disclosed imaging apparatus includes a moving object detection unit that detects a moving object included in a subject being imaged using a plurality of frames obtained by continuous imaging with the imaging element, and the display control unit is configured to perform the display control. The display device displays at least the outline of the moving object detected by the moving object detection unit included in the second frame.

  In the disclosed imaging device, the display control unit displays an image in which at least a part other than the contour of the moving object detected by the moving object detection unit included in the second frame is black during the display control. Is displayed.

  In the disclosed imaging device, the display control unit displays a contour of a moving object detected by the moving object detection unit included in the second frame during the display control, and displays the color of the contour in the second The frame is displayed with a complementary color of the background color of the moving object.

  The disclosed imaging apparatus includes a moving direction detection unit that detects a moving direction of the moving object detected by the moving object detection unit, and the display control unit extends in parallel with the moving direction of the moving object during the display control. A scale line is further displayed on the display device.

  In the disclosed imaging apparatus, the display control unit starts the display control using a shooting condition setting instruction performed by an external operation as a trigger.

  The disclosed imaging apparatus includes a moving object detection unit that detects a moving object included in a subject being imaged using a plurality of frames obtained by continuous imaging using the image sensor, and a moving speed detection that detects a moving speed of the moving object. A moving direction detecting unit for detecting a moving direction of the moving object, and an electronic zoom for narrowing a range to be recorded with respect to a frame obtained by imaging with the image sensor when a moving speed of the moving object is equal to or higher than a threshold value A control unit that performs control, and the control unit moves a recording range in a frame obtained by imaging with the imaging element from a center of the frame to a moving direction side of the moving object detected by the moving direction detection unit. The display control unit is configured to display the information corresponding to the recording range on the display device when the moving speed of the moving object is equal to or higher than a threshold value.

  The disclosed display control method includes a finder window that is directed toward a subject, a photographer-side finder viewing window that looks into the light image of the subject that is incident from the finder window, and a space between the finder window and the photographer-side viewing window. A half mirror that transmits a light image of the subject in the direction of the photographer side finder viewing window, and a display device that projects a display image on the half mirror and reflects the reflected image in the direction of the photographer side viewfinder viewing window. A display control method in an imaging device including a finder device and an imaging device including a time of a shutter time lag of the imaging device from a latest first frame among a plurality of frames obtained by continuous imaging with the imaging device A frame stored in a storage unit that stores at least frames from the second frame one minute before the latest first frame. Those comprising a display control step for controlling the display to display at least a portion of said second frame to said display device among the over arm.

  The disclosed display control method includes a moving object detection step of detecting a moving object included in a subject being imaged using a plurality of frames obtained by continuous imaging with the image sensor, wherein the display control step includes the second control step. At least the contour of the moving object detected in the moving object detection step included in the frame is displayed on the display device.

  In the disclosed display control method, in the display control step, at least an outline of the moving object detected by the moving object detection step included in the second frame is set to a color other than black, and the moving object of the second frame is An image in which at least a portion other than the contour is black is displayed on the display device.

  In the disclosed display control method, in the display control step, the color of the contour of the moving object displayed on the display device is displayed with a complementary color of the background color of the moving object in the second frame.

  The disclosed display control method includes a moving direction detecting step for detecting a moving direction of the moving object detected in the moving object detecting step, and the display control step displays a scale line extending in parallel with the moving direction of the moving object. It is further displayed on the device.

  In the disclosed display control method, the display control step is started by using a shooting condition setting instruction performed by an external operation as a trigger.

  The disclosed display control method includes a moving object detection step for detecting a moving object included in a subject being imaged using a plurality of frames obtained by continuous imaging with the image sensor, and a moving speed for detecting a moving speed of the moving object. A detecting step; a moving direction detecting step for detecting a moving direction of the moving object; and an electron for narrowing a range to be recorded with respect to a frame obtained by imaging with the imaging device when the moving speed of the moving object is equal to or higher than a threshold value. A control step for performing zoom control, wherein in the control step, a recording range in a frame obtained by imaging with the imaging element is detected from the center of the frame by the moving direction detection unit. In the display control step, when the moving speed of the moving object is equal to or higher than a threshold, information corresponding to the recording range is set in the display control step. It is intended to be displayed on the shown device.

DESCRIPTION OF SYMBOLS 10 Digital camera 15 Finder apparatus 16 Finder window 17 Photographer side finder viewing window 21a Solid-state image sensor 36 Memory 41 Display control part 61 Liquid crystal display device 63 for EVF Half mirror

Claims (14)

A viewfinder window directed toward the subject, a photographer side viewfinder window looking into the light image of the subject incident from the viewfinder window, and the light of the subject provided between the viewfinder window and the photographer side viewfinder view window A finder device including a half mirror that transmits an image in the direction of the photographer-side finder viewing window, and a display device that projects a display image on the half mirror and reflects the image in the direction of the photographer-side finder viewing window; An imaging device comprising:
Of a plurality of frames obtained by continuous imaging with the imaging device, frames from the second frame before the latest first frame to the latest first frame from the second frame before the shutter time lag of the imaging device. A storage unit for storing at least;
An imaging apparatus comprising: a display control unit that performs display control for causing the display device to display at least a part of the second frame among frames stored in the storage unit. The imaging apparatus according to claim 1,
Using a plurality of frames obtained by continuous imaging with the imaging device, and including a moving object detection unit that detects a moving object included in the subject being imaged,
The said display control part is an imaging device which displays on the said display apparatus at least the outline of the moving body detected by the said moving body detection part contained in a said 2nd flame | frame at the time of the said display control. The imaging apparatus according to claim 2,
The display device is an imaging device that causes the display device to display an image in which at least a part other than the outline of the moving object detected by the moving object detection unit included in the second frame is black during the display control. The imaging device according to claim 2 or 3,
The display control unit displays a contour of a moving object detected by the moving object detection unit included in the second frame at the time of the display control, and displays the color of the contour in the background of the moving object in the second frame. An imaging device that displays a complementary color. The imaging apparatus according to any one of claims 2 to 4,
A moving direction detector that detects a moving direction of the moving object detected by the moving object detector;
The display control unit further causes the display device to display a scale line extending in parallel with the moving direction of the moving body during the display control. The imaging device according to any one of claims 1 to 5,
The display control unit is an imaging apparatus that starts the display control with a shooting condition setting instruction performed by an external operation as a trigger. The imaging apparatus according to any one of claims 1 to 6,
A moving object detection unit that detects a moving object included in a subject being imaged using a plurality of frames obtained by continuous imaging with the imaging element;
A moving speed detector for detecting the moving speed of the moving object;
A moving direction detector for detecting a moving direction of the moving body;
A control unit that performs electronic zoom control to narrow a range to be recorded with respect to a frame obtained by imaging with the imaging device when the moving speed of the moving object is equal to or greater than a threshold;
The control unit sets a recording range in a frame obtained by imaging with the imaging element by shifting from a center of the frame to a moving direction side of the moving object detected by the moving direction detection unit,
The display device is an imaging device that causes the display device to display information corresponding to the recording range when the moving speed of the moving object is equal to or greater than a threshold value. A finder window directed in the direction of the subject, a photographer side viewfinder window looking into the light image of the subject incident from the viewfinder window, and a light image of the subject provided between the viewfinder window and the photographer side view window A finder device including a half mirror that transmits in the direction of the photographer side finder viewing window, and a display device that projects a display image on the half mirror and reflects the reflected image in the direction of the photographer side viewfinder viewing window. A display control method in an imaging apparatus having:
Of a plurality of frames obtained by continuous imaging with the imaging device, frames from the second frame before the latest first frame to the latest first frame from the second frame before the shutter time lag of the imaging device. A display control method comprising a display control step of performing display control for displaying at least a part of the second frame among the frames stored in at least a storage unit that stores the display on the display device. The display control method according to claim 8, comprising:
Using a plurality of frames obtained by continuous imaging with the imaging device, comprising a moving object detection step of detecting a moving object included in a subject being imaged;
In the display control step, a display control method for causing the display device to display at least an outline of the moving object detected by the moving object detection step included in the second frame. The display control method according to claim 9, comprising:
In the display control step, at least an outline of the moving object detected by the moving object detection step included in the second frame is set to a color other than black, and at least a portion other than the outline of the moving object of the second frame is set to black. Display control method for causing the display device to display the processed image. The display control method according to claim 9 or 10,
A display control method in which, in the display control step, a color of a contour of the moving object displayed on the display device is displayed with a complementary color of a background color of the moving object in the second frame. The display control method according to any one of claims 9 to 11,
A moving direction detecting step for detecting a moving direction of the moving object detected in the moving object detecting step;
In the display control step, the display control method further displays on the display device a scale line extending in parallel with the moving direction of the moving body. The display control method according to any one of claims 8 to 12,
A display control method in which the display control step is started with a shooting condition setting instruction performed by an external operation as a trigger. A display control method according to any one of claims 8 to 13,
A moving object detection step of detecting a moving object included in a subject being imaged using a plurality of frames obtained by continuous imaging with the image sensor;
A moving speed detecting step for detecting a moving speed of the moving body;
A moving direction detecting step for detecting a moving direction of the moving body;
A control step of performing electronic zoom control for narrowing a range to be recorded with respect to a frame obtained by imaging with the imaging device when the moving speed of the moving object is equal to or higher than a threshold;
In the control step, a recording range in a frame obtained by imaging with the imaging element is set by shifting from the center of the frame to the moving direction side of the moving object detected by the moving direction detection unit,
A display control method in which, in the display control step, information corresponding to the recording range is displayed on the display device when a moving speed of the moving object is equal to or higher than a threshold value.