JP2008103998A - Digital camera, electronic apparatus with digital camera mounted, imaging method of digital camera, and storage medium with digital camera program stored therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital camera capable of performing photographing unaffected by camera shake without missing a photo opportunity of an instant without camera shake with a small and inexpensive configuration. <P>SOLUTION: The digital camera has an imaging part 110 for imaging an object, and a storing part 130 for storing an image composed of signals output from the imaging part 110. When any of the entire image, a specific object of the image and a main body of the digital camera 100, or a plurality of them stop, the digital camera can automatically photograph an image unaffected by camera shake and store the image in the storing part 130. Consequently, it is possible to acquire a photographed image unaffected by camera shake without missing a photo opportunity with a small and inexpensive configuration. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a digital camera that images a subject and records the image data on a recording medium, an electronic device equipped with the digital camera, an imaging method for the digital camera, and a storage medium that stores a program for the digital camera.

  In recent years, digital cameras and mobile phones with digital cameras have become smaller and more multifunctional, and their usability has improved dramatically. However, on the other hand, the camera body has become lighter, the optical zoom has a higher magnification, or the mobile phone has special features. Due to the changed shape, a general user who is unfamiliar with shooting is likely to be affected by camera shake during shooting. In addition, the resolution of images has increased dramatically due to the increased density of CCD (Charged Coupled Device) sensors and CMOS (Complementary Metal-Oxide Semiconductor) sensors mounted on cameras. High resolution cannot be fully utilized. Furthermore, even when shooting a moving subject such as a person or a flower swaying in the wind, there is a demand for shooting the moment when the subject stops.

In order to avoid the effects of camera shake, there is a function to notify the possibility of camera shake, to detect whether the captured image is a failed image due to camera shake, and to send a command signal to re-shoot after judging camera shake. There are digital cameras (for example, see Patent Document 1, Patent Document 2, and Patent Document 3). As a method for preventing camera shake at the moment of pressing the shutter key, there is a method of taking a picture using a self-timer.
JP 2004-147185 A JP 2004-120256 A JP 2003-238338 A

  However, in a conventional digital camera, it is possible to detect the presence or absence of camera shake in a captured image after shooting, but it is not possible to eliminate the cause of camera shake that occurs physically by pressing a shutter key.

  In addition, in conventional digital cameras, the presence or absence of camera shake in the captured image is determined after shooting, so even if you take a picture again with a camera shake warning, you have already missed a decisive photo opportunity. There is a high possibility.

  Furthermore, there is a method of taking a picture using a self-timer to prevent camera shake, but this method may miss a good shooting timing when the subject is stopped.

  As a conventional method for avoiding the influence of the above-described physical camera shake, there is a method of correcting a captured image in advance when camera shake is detected by a gyroscope or image recognition. It is necessary to mount a detection means for detecting camera shake and a correction device for correcting camera shake. For this reason, there are problems that the mounting volume and mounting area of the digital camera main body are increased and the cost is increased.

  An object of the present invention is to provide a digital camera that can perform shooting without the influence of camera shake without missing a shutter chance at the moment when there is no camera shake with a small and inexpensive configuration.

  The digital camera of the present invention includes an imaging unit that captures an image of a subject, a storage unit that stores one or a plurality of images composed of signals output from the imaging unit, a control unit that has a self-timer function, 1) a control unit that determines whether the entire image output from the imaging unit is stopped, or (2) a control that determines whether a specific object of the image output from the imaging unit is stopped. Or (3) a direction monitoring unit for determining whether the digital camera body of the present invention is stopped or not (1) to (3).

  With this configuration, one or more movements of the entire image, a specific object of the image, or the digital camera body are selected and detected during the preview, and one or more of the selected ones are stopped. If it is determined that there is a camera shake, it is assumed that a captured image without camera shake is taken, and an image at that moment is taken. As a result, it is possible to capture an image without camera shake. As described above, there are several trigger conditions such as shooting when the subject or the camera is stopped, such as starting after starting the camera or operating after pressing the shutter key. can do. This setting may be selected by the photographer. In addition, the action of taking a picture when the subject or the camera is stopped may be an action of operating the self-timer when the subject or the camera is stopped. It is possible to change the operation to operate the timer and shoot immediately after the self-timer ends, or to shoot when the subject or camera stops for the first time after the self-timer ends. it can.

  As a shooting method considering these usability, immediately after pressing the shutter key, when the subject or camera stops after pressing the shutter key, when the subject or camera stops during the self-timer, or when the self-timer ends, or There is also a method of giving several shooting instants when the subject or the camera stops after the self-timer ends, comparing the images taken at these timings, and selecting and saving them.

  As described above, according to the present invention, since shooting is performed when the subject or the camera is stopped, or since the self-timer is started when the subject or the camera is stopped, shooting without camera shake or shooting with relatively less camera shake is inexpensive. This can be done with a simple configuration.

  In addition, by comparing the captured images at several shooting timings, it is possible to capture a more decisive image among the captured images where the subject is stopped.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of a digital camera according to an embodiment of the present invention. Note that the digital camera according to the present embodiment is not limited to a general digital camera dedicated to photographing, but can also be used by being mounted on an electronic device such as a mobile phone.

  As shown in FIG. 1, the digital camera 100 includes an imaging unit 110, a display unit 120, a storage unit 130, an operation unit 140, a control unit 150, and the like.

  The imaging unit 110 includes an optical system including a lens and a diaphragm, and an imaging device including a CCD (Charge Coupled Devices) sensor, a CMOS (Complementary Metal-Oxide Semiconductor) sensor, a ν Mycobicon sensor (νMAICOVICON), and the like. The image data representing the image of the subject imaged by the imaging device is output to the control unit 150. Note that the imaging unit 110 is configured to output data representing an image to the control unit 150 at regular time intervals.

  The display unit 120 includes a monitor LCD (Liquid Crystal Display) and the like, and displays image data output from the imaging unit 110 as an image. The display unit 120 mainly displays an image at the time of preview for displaying a subject before shooting and an image when shooting is completed.

  The storage unit 130 stores image data output from the imaging unit 110. The storage unit 130 stores a program executed by the control unit 150 and data used in the program. The program stored in the storage unit 130 includes, for example, a known image recognition technique, the entire image captured from the image capturing unit 110 or the position of a specific object of the image, and the entire image captured or specified previously. And a program for detecting a change in the position of the entire image or a specific object in the image.

  The operation unit 140 includes an operation button for starting the digital camera 100 and an operation button such as a shooting button for controlling shooting. The shooting button is a key for instructing the control unit 150 to start shooting a subject imaged by the imaging device of the imaging unit 110 or start a self-timer. When the photographing button constituting the operation unit 140 is pressed, the image data output from the imaging unit 110 is stored in the storage unit 130.

  The control unit 150 is configured by a processor such as a CPU, and controls each unit constituting the digital camera 100 by executing a program stored in the storage unit 130.

  FIG. 2 is a block diagram showing a schematic configuration of a digital camera according to another embodiment of the present invention. As shown in FIG. 2, the digital camera 100 includes a direction monitoring unit 160 including a gyro sensor, a GPS sensor, an angular velocity sensor, an orientation sensor, an infrared sensor, or the like, and the direction monitoring unit 160 moves from the main body of the digital camera 100 to the subject. It can also be configured to monitor a change in the direction of heading or the subject body.

  The operation of the program executed by the digital camera according to the embodiment of the present invention configured as described above will be described below.

(First embodiment of the present invention)
An operation of the digital camera according to the first embodiment of the present invention will be described. FIG. 3 is a flowchart showing an example of a program of the digital camera according to the first embodiment of the present invention. Note that in the flowcharts shown in FIG. 3 and subsequent figures, only an operation for performing image-free shooting that is a function unique to the digital camera 100 will be described.

  First, in FIG. 3, the digital camera 100 is activated by a key operation or the like of the operation unit 140 (step S301), and a preview operation is performed, and the imaging unit 110 captures image data (step S302).

  The control unit 150 determines whether the entire image, a specific object of the image, or the main body of the digital camera 100 is stopped with respect to the captured image (step S303). If it is determined in step S303 that the image has been stopped, it is determined that the image captured by the imaging unit 110 has not been shaken, and the imaging unit 110 performs imaging (step S304). In step S304, data representing the captured image is stored in a memory such as the storage unit 130. Further, in step S304, photographing may be performed under conditions such as F value and exposure time set automatically or manually.

  Further, the direction monitoring unit 160 may be an infrared sensor, and the control unit 150 may determine whether or not a specific target object as a subject is stopped by the infrared sensor in step S303.

  If it is determined in step S303 that the image is not stopped, the process returns to step S302 again until the image where the subject is stopped is acquired, and the imaging unit 110 captures image data.

  As a method of determining that the entire image, a specific object of the image, or the main body of the digital camera 100 has stopped, a method of comparing the difference between the previous image and the current image among the captured images, There are a method of performing an image processing on an image, a method of determining, or a method of providing the digital camera 100 with a sensor that detects the movement of the digital camera 100 itself.

  As described above, when the digital camera according to the first embodiment of the present invention is used, the user can perform shooting for obtaining an image without shaking without pressing the shutter key.

(Second embodiment of the present invention)
An operation of the digital camera according to the second embodiment of the present invention will be described. FIG. 4 is a flowchart showing an example of a program of the digital camera according to the second embodiment of the present invention. In the second embodiment of the present invention, a self-timer function is added in the shooting operation of FIG.

  In the second embodiment, the same operations as those in the first embodiment are denoted by the same reference numerals. Similarly to the first embodiment of the present invention, the second embodiment is a mode in which the user performs shooting without shaking without pressing the shutter key.

  First, in FIG. 4, the digital camera 100 is activated by a key operation or the like of the operation unit 140 (step S301), and the imaging unit 110 captures image data (step S302).

  The control unit 150 determines whether the entire image, a specific object of the image, or the main body of the digital camera 100 is stopped with respect to the captured image (step S303). If it is determined in step S303 that the operation has been stopped, the control unit 150 sets a set second representing a time to be measured in the self-timer and starts the self-timer (step S404). After starting the self-timer, the imaging unit 110 captures image data during the self-timer operation (step S405), and the control unit 150 determines whether the subject of the captured image has moved significantly (step S406).

  The self-timer may be a program executed by the control unit 150 or an electronic circuit having a timekeeping function.

  If it is determined in step S406 that the subject has not moved significantly, the control unit 150 determines whether or not the set time of the self-timer has ended (step S408).

  In step S406, when the control unit 150 determines that the subject has moved greatly, the operation of the self-timer is canceled (step S407), and the operation returns to step S302.

  By inserting this operation, when the photographer wants to cancel the self-timer shooting after the self-timer is activated, the digital camera 100 can be moved largely to cancel without operating the key operation. With regard to this “large”, a threshold is provided for determining the size of how the subject moves, and the control unit 150 assumes that the subject has moved “large” when the subject is moving at a certain threshold value or larger. judge. For example, when the difference between the current position of the digital camera 100 measured by the direction monitoring unit 160 and the position before the set second exceeds a predetermined threshold, the control unit 150 determines that the movement is “large”.

  In order to give priority to releasing the operation of the self-timer at the photographer's intention when determining that the movement is “large”, a gyro sensor, a GPS sensor, an angular velocity sensor, an azimuth capable of determining the movement of the digital camera 100 itself If there is a direction monitoring unit 160 such as a sensor, priority should be given to the operation of the direction monitoring unit 160. However, if there is no sensor or the like that determines the movement of the digital camera 100 itself, the movement of the subject of the captured image output from the imaging unit 110 is determined by image processing, and the subject moves “largely” when the subject moves greatly. It can also be determined. For example, when the difference in the distance on the image between the set of pixels representing the previously captured subject image and the set of pixels representing the currently captured subject image exceeds a predetermined threshold, the control unit 150 Judged to have moved "bigly".

  When the set seconds have not elapsed in step S408, the process returns to step S405 until it is determined that the set seconds have elapsed. When the set seconds have elapsed, the control unit 150 performs shooting (step S304).

  As described above, in the second embodiment of the present invention, the timer is started at the moment when the subject or the operation of the camera stops without camera shake, and the camera shake is relatively suppressed by maintaining this state. The purpose is to shoot. Since shooting with the self-timer starts once it is determined that there is no camera shake, the image taken after the self-timer has timed is also relatively low-blurred, and the end time of the self-timer depends on the photographer. Since it can be predicted, shooting can be performed in a state where the photographer can also predict the shooting timing.

(Third embodiment of the present invention)
The operation of the digital camera according to the third embodiment of the present invention will be described. FIG. 5 is a flowchart showing an example of a program of the digital camera according to the third embodiment of the present invention. In the third embodiment of the present invention, in addition to the operation described with reference to FIG. 3, an operation of performing shooting by determining whether or not the subject is stopped is added by pressing the shutter key. It is a thing.

  In the third embodiment, the same reference numerals are given to the same operations as those in the first embodiment. The third embodiment is a mode in which a user performs shooting without camera shake by pressing a shutter key.

  First, in FIG. 5, the digital camera 100 is activated by a key operation or the like of the operation unit 140 (step S301), and the imaging unit 110 captures image data (step S302).

  Next, the control unit 150 determines whether or not the shutter key constituting the operation unit 140 has been pressed (step S503). If the shutter key has not been pressed, the process returns to step S302. If the shutter key has been pressed, after capturing the image data (step S504), the imaging unit 110 compares the image captured in step S504 with the previously captured image. Then, it is determined whether or not the entire image, the specific object of the image, or the digital camera 100 main body has been stopped (step S303). In step S303, when the control unit 150 determines that the entire image, the specific object of the image, or the digital camera body has stopped, the control unit 150 determines that the image captured by the imaging unit 110 is not shaken, Shooting is performed (step S304).

  If it is determined in step S303 that the entire image, a specific object of the image, or the digital camera body has not stopped, the process proceeds to step S406.

  In step S406, the control unit 150 determines whether or not the subject of the captured image has moved significantly. If the subject has moved significantly, the control unit 150 waits for a shooting mode in which the shutter key has been pressed. Is released (step S507). Thereafter, the operation returns to step S302, and the imaging unit 110 captures preview image data again.

  If it is determined in step S406 that the subject has not moved significantly, the process returns to image data capture in step S504 again.

  As described above, in the third embodiment of the present invention, when shooting is performed by pressing the shutter key, the photographer intentionally waits for this shooting after pressing the shutter key once to enter the shooting standby state. When it is desired to release the state, the photographer intentionally moves the camera body intentionally, so that it is determined in step S406 that the subject has moved greatly, and in step S507, the user is conscious without performing a key operation from the shooting standby state. The mode waiting for shooting can be canceled.

(Fourth embodiment of the present invention)
The operation of the digital camera according to the fourth embodiment of the present invention will be described. FIG. 6 is a flowchart showing an example of a program of the digital camera according to the fourth embodiment of the present invention. In the fourth embodiment of the present invention, an operation related to a self-timer is added to the operation described in FIG. Note that in the fourth embodiment, the same reference numerals are given to the same operations as those in the first to third embodiments.

  First, in FIG. 6, the digital camera 100 is activated by a key operation or the like of the operation unit 140 (step S301), and the imaging unit 110 captures image data (step S302).

  Next, the control unit 150 determines whether or not the shutter key constituting the operation unit 140 has been pressed (step S503). If the shutter key has not been pressed, the operation returns to step S302. If the shutter key has been pressed, the set second representing the time to be measured is set in the self-timer, and the self-timer is started (step S404).

  After starting the self-timer, the imaging unit 110 captures image data during the self-timer operation (step S405), and the control unit 150 determines whether the subject of the captured image has moved significantly (step S406).

  In step S406, if the control unit 150 determines that the subject has moved significantly, the control unit 150 cancels the operation of the self-timer (step S407). If the control unit 150 determines that the subject has not moved significantly, the set time of the self-timer has ended. It is determined whether or not (step S408).

  In step S408, if the set time of the self-timer has not ended, the operation returns to step S405. If the set time of the self-timer has ended, the imaging unit 110 captures image data (step S609).

  The control unit 150 determines whether the entire image, a specific object of the image, or the main body of the digital camera 100 is stopped with respect to the captured image (step S303). If it is determined in step S303 that the image has been stopped, it is determined that the image captured by the imaging unit 110 is not shaken, and shooting is performed (step S304). If it is determined in step S303 that the image has not stopped, the process returns to step S609 again until the image with the subject stopped can be acquired, and the imaging unit 110 captures image data.

  As described above, in the fourth embodiment of the present invention, when the photographer intentionally releases the operation of the self-timer after the self-timer is started by pressing the shutter key once, the photographer Is intentionally moved in step S406, it is determined in step S406 that the subject has moved greatly, and in step S407, the operation of the self-timer can be canceled without performing a key operation from the shooting standby state.

(Fifth embodiment of the present invention)
The operation of the digital camera according to the fifth embodiment of the present invention will be described. FIG. 7 is a flowchart showing an example of a program of the digital camera according to the fifth embodiment of the present invention.

  In the fifth embodiment of the present invention, when the self-timer starts in addition to the operation described with reference to FIG. 6, the entire image of the subject, the specific object of the image, or the digital camera body is stopped. And an operation of starting a self-timer when it is determined that these have stopped is added. In the fifth embodiment, the same operations as those in the first to fourth embodiments are denoted by the same reference numerals.

  First, in FIG. 7, the digital camera 100 is activated by a key operation or the like of the operation unit 140 (step S301), and the imaging unit 110 captures image data (step S302).

  Next, the control unit 150 determines whether or not the shutter key constituting the operation unit 140 has been pressed (step S503). If the shutter key has not been pressed, the process returns to step S302.

  If the shutter key has been pressed in step S503, the imaging unit 110, after capturing the image data (step S504), determines whether the subject of the captured image has moved significantly (step S504). Step S406).

  In step S406, when the control unit 150 determines that the subject has moved significantly, it cancels the shooting standby mode in which the shutter key has been pressed (step S507), and when it determines that the subject has not moved significantly, capture is performed. It is determined whether the entire image, a specific object of the image, or the main body of the digital camera 100 is stopped with respect to the obtained image (step S303).

  In step S303, if the control unit 150 determines that it has stopped, the control unit 150 starts a self-timer (step S404), and the imaging unit 110 captures image data during the self-timer operation (step S405). If the control unit 150 determines in step S303 that it has not stopped, the operation returns to step S504 again.

  Next, the control unit 150 determines whether or not the subject of the captured image has moved significantly (step S710). Note that step S710 is the same operation as step S406. When the control unit 150 determines in step S710 that the subject has moved greatly, the operation of the self-timer is canceled (step S407), and the operation returns to step S302. Further, when determining that the subject has not moved significantly, the control unit 150 determines whether or not the set time of the self-timer has ended (step S408).

  Next, when the set second has not elapsed in step S408, the process returns to step S405 until it is determined that the set second has elapsed. When the set second has elapsed, the control unit 150 performs shooting (step S304).

  As described above, in the fifth embodiment of the present invention, when the photographer intentionally releases the operation of the self-timer after the self-timer is started by pressing the shutter key once, the photographer By intentionally moving the image, it is determined in step S710 that the subject has moved greatly, and in step S407, the operation of the self-timer can be canceled without performing a key operation from the shooting standby state.

(Sixth embodiment of the present invention)
The operation of the digital camera according to the sixth embodiment of the present invention will be described. FIG. 8 is a flowchart showing an example of a program of the digital camera according to the sixth embodiment of the present invention.

  In the sixth embodiment of the present invention, in addition to the operation described with reference to FIG. 7, an operation of accumulating data representing an image that is judged to have little or no camera shake in three memories is added. In this way, the photographer can finally select the best image from the three images. In the sixth embodiment, the same operations as those in the first to fifth embodiments are denoted by the same reference numerals.

  First, in FIG. 8, the digital camera 100 is activated by a key operation or the like of the operation unit 140 (step S301), and the imaging unit 110 takes in image data (step S302).

  Next, the control unit 150 determines whether or not the shutter key constituting the operation unit 140 has been pressed (step S503). If the shutter key has not been pressed, the process returns to step S302.

  If the shutter key has been pressed in step S503, the control unit 150 captures the first image and temporarily accumulates data representing the captured image in a memory such as the storage unit 130 ( Step S801). Next, after capturing the image data (step S504), the imaging unit 110 determines whether or not the subject of the captured image has moved significantly (step S406).

  In step S406, when the control unit 150 determines that the subject has moved significantly, it cancels the shooting standby mode in which the shutter key has been pressed (step S507), and when it determines that the subject has not moved significantly, capture is performed. It is determined whether the entire image, a specific object of the image, or the main body of the digital camera 100 is stopped with respect to the obtained image (step S303).

  It should be noted that the photographer intentionally enlarges the camera body when the photographer wants to release the state where the shutter key was intentionally depressed before the second photograph (step S802) is entered after the shutter key is depressed. In step S406, it is determined that the subject has moved greatly, and the state where the shutter key is pressed can be released without performing a key operation in step S507.

  In step S303, if the control unit 150 determines that the image has been stopped, the control unit 150 captures the second image, and temporarily stores data representing the captured image in the memory as in the first image (step S303). S802). If the control unit 150 determines in step S303 that it has not stopped, the operation returns to step S504 again.

  Next, the control unit 150 starts a self-timer (step S404), and the imaging unit 110 captures image data during the self-timer operation (step S405), and determines whether the subject of the captured image has moved significantly. Determination is made (step S710). Note that step S710 is the same operation as step S406. When the control unit 150 determines in step S710 that the subject has moved greatly, the operation of the self-timer is canceled (step S407), and the operation returns to step S302. Further, when determining that the subject has not moved significantly, the control unit 150 determines whether or not the set time of the self-timer has ended (step S408).

  Next, when the set second has not elapsed in step S408, the process returns to step S405 until it is determined that the set second has elapsed. When the set second has elapsed, the control unit 150 performs the third image capture, Data representing the captured image is temporarily stored in the memory as with the first and second images (step S803). Note that steps S801 to S803 are similar to step S304.

  In step S710, the photographer intentionally moves the camera main body when the photographer intentionally releases the operation of the self-timer after the second picture is taken and the self-timer starts. It is determined that the subject has moved greatly, and the operation of the self-timer can be canceled without performing a key operation from the state of waiting for photographing in step S407.

  After the third image is taken, the photographer displays the three images taken in steps S801 to S803, for example one by one or all on the display unit 120, and there is no camera shake from the three images. Or select the one you like and save it. In selecting an image without camera shake, the amount of movement of the subject in each image is represented by a numerical value, and the numerical value is displayed in a recognizable form so that the photographer can refer to it. It is also possible to preferentially select and save small items.

(Seventh embodiment of the present invention)
The operation of the digital camera according to the seventh embodiment of the present invention will be described. 9 and 10 are flowcharts showing an example of a program of the digital camera according to the seventh embodiment of the present invention.

  In the seventh embodiment of the present invention, in addition to the operation described with reference to FIG. 8, data representing an image that is considered to be free from camera shake is stored in a memory as much as possible, and finally, the data is stored. It adds the action that the photographer chooses the best image. Note that in the seventh embodiment, the same operations as those in the first to sixth embodiments are denoted by the same reference numerals.

  First, in FIG. 9, the digital camera 100 is activated by a key operation or the like of the operation unit 140 (step S301), and the imaging unit 110 captures image data (step S302).

  Next, the control unit 150 determines whether or not the shutter key constituting the operation unit 140 has been pressed (step S503). If the shutter key has not been pressed, the process returns to step S302.

  If the shutter key is pressed in step S503, the imaging unit 110 captures image data (step S504), and the control unit 150 determines whether the subject of the captured image has moved significantly (step S406). .

  In step S406, when the control unit 150 determines that the subject has moved significantly, it cancels the shooting standby mode in which the shutter key has been pressed (step S507), and when it determines that the subject has not moved significantly, capture is performed. It is determined whether the entire image, a specific object of the image, or the main body of the digital camera 100 is stopped with respect to the obtained image (step S303).

  It should be noted that the photographer intentionally enlarges the camera body when the photographer wants to release the state in which the shutter key was intentionally pressed before moving to the first shooting (step S801) after pressing the shutter key once. In step S406, it is determined that the subject has moved greatly, and the state where the shutter key is pressed can be released without performing a key operation in step S507.

  In step S303, if the control unit 150 determines that the image has been stopped, the control unit 150 captures the first image and temporarily accumulates data representing the captured image in a memory such as the storage unit 130 ( Step S801). In step S303, when the control unit 150 determines that the operation has been stopped, the operation returns to step S504 again.

  Next, the control unit 150 starts a self-timer (step S404), and the imaging unit 110 captures image data during the self-timer operation (step S405), and determines whether the subject of the captured image has moved significantly. Determination is made (step S710). When the control unit 150 determines in step S710 that the subject has moved greatly, the operation of the self-timer is canceled (step S407), and the operation returns to step S302.

  As shown in FIG. 10, when the control unit 150 determines in step S710 that the subject has not moved significantly, it determines for each frame whether or not the subject of each image captured in step S405 is stationary (step S405). S913) When there is a still frame among the frames, shooting is performed, and data representing the captured image is temporarily stored in a memory such as the storage unit 130 (step S914). .

  Whether or not the subject is stationary is determined in the same manner as in step S303, or whether the subject has a certain amount of movement below a certain threshold or less is determined to be stationary. May be.

  After step S914 or when there is no frame that is stationary in each frame in step S913, the control unit 150 determines whether or not the set time of the self-timer has ended (step S408).

  If the set second has not elapsed in step S408, the process returns to step S405 until it is determined that the set second has elapsed. Until the set second elapses, the frame that has been stationary in each frame in step S913. If there is, the control unit 150 performs imaging in step S914, and stores data representing the second, third,..., N−1th images obtained in the imaging in a memory such as the storage unit 130. Store temporarily.

  When the photographer intentionally releases the operation of the self-timer after the self-timer starts, the photographer intentionally moves the camera body intentionally to determine that the subject has moved greatly in step S710, In step S407, the operation of the self-timer can be canceled without performing a key operation from the shooting standby state.

  When the set second has elapsed in step S408, the imaging unit 110 captures the image data (step S916), and the control unit 150 performs the entire image, a specific object of the image, or digital for the captured image. It is determined whether the main body of the camera 100 has been stopped (step S917).

  If the control unit 150 determines in step S917 that the operation has been stopped, the operation returns to step S916 again. If it is determined in step S917 that the control unit 150 has not stopped, the control unit 150 performs the last shooting, and temporarily stores data representing the captured image in a memory such as the storage unit 130 (step S917). S918). Note that steps S914 and S918 are similar to step S304.

  After the last shooting, the photographer displays n images taken in steps S801, S914, and S918, for example one by one or all on the display unit 120, and there is no camera shake from the n images. Or select the one you like and save it. In selecting an image without camera shake, the amount of movement of the subject in each image is represented by a numerical value, and the numerical value is displayed in a recognizable form so that the photographer can refer to it. It is also possible to preferentially select and save small items.

  As described above, the digital camera 100 according to the embodiment of the present invention, when shooting a subject, does not miss a shutter chance at the moment when there is no camera shake, and is not affected by camera shake or the effect of camera shake. Therefore, it can be realized with a small and inexpensive configuration without adding a physical device such as a new gyro or a camera shake correction device for correcting camera shake.

  As described above, since the digital camera according to the present invention can perform shooting without the influence of camera shake without missing a photo opportunity at the moment when there is no camera shake, the digital camera is mounted on a mobile phone that is likely to cause camera shake during shooting. It is useful as a digital camera.

1 is a block diagram showing a schematic configuration of a digital camera according to an embodiment of the present invention. The block diagram which shows schematic structure of the digital camera which concerns on other embodiment of this invention. The flowchart which shows an example of the program of the digital camera which concerns on the 1st Embodiment of this invention The flowchart which shows an example of the program of the digital camera which concerns on the 2nd Embodiment of this invention The flowchart which shows an example of the program of the digital camera which concerns on the 3rd Embodiment of this invention The flowchart which shows an example of the program of the digital camera which concerns on the 4th Embodiment of this invention The flowchart which shows an example of the program of the digital camera which concerns on the 5th Embodiment of this invention The flowchart which shows an example of the program of the digital camera which concerns on the 6th Embodiment of this invention The flowchart which shows an example of the program of the digital camera which concerns on the 7th Embodiment of this invention The flowchart which shows an example of the program of the digital camera which concerns on the 7th Embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Digital camera 110 Imaging part 120 Display part 130 Storage part 140 Operation part 150 Control part 160 Direction monitoring part

Claims (8)

An imaging unit for imaging a subject;
A storage unit for storing an image constituted by a signal output from the imaging unit;
A function of determining whether the entire image or a specific object of the image or the digital camera body of the present invention has stopped, or a control unit having the control unit and a direction monitoring unit,
A control unit that performs shooting when it is determined that one or more selected from the entire image or a specific object of the image or the digital camera body of the present invention is stopped. Digital camera. 2. The digital camera according to claim 1, wherein a function of a self-timer and whether or not any one or a plurality of selected ones of the entire image, a specific object of the image, or the digital camera body of the present invention have moved greatly are determined. Having a control unit,
When it is determined that one or more selected from the entire image or a specific object of the image or the digital camera body of the present invention is stopped, the self-timer is started and it is determined that the image does not move significantly And a control unit for taking a picture after the self-timer finishes counting in a state where the self-timer has been counted. 2. The digital camera according to claim 1, wherein the operation unit has a shutter key for shifting to photographing, and the entire image or a specific object of the image or the digital camera body of the present invention is selected after the shutter key is pressed. If it is determined that any one or more of them are stopped, a control unit that performs shooting is provided.
A control unit that performs shooting when it is determined that one or more of the entire image, a specific object of the image, or the digital camera main body of the present invention is stopped after the shutter key is pressed. A digital camera characterized by 2. The digital camera according to claim 1, wherein the operation unit has a shutter key for starting a self-timer, and the entire image or a specific object of the image or the digital camera body of the present invention after the time measurement of the self-timer ends. If it is determined that one or more of the selected ones are stopped, a control unit that performs shooting is provided.
The self-timer is started after the shutter key is pressed, and after the self-timer is finished, it is determined that one or more selected from the entire image, the specific object of the image, or the digital camera body of the present invention are stopped. A digital camera comprising a control unit for performing shooting. 2. The digital camera according to claim 1, wherein one or more selected from the entire image, a specific object of the image, or the digital camera body of the present invention are stopped after the shutter key for shifting to photographing is pressed. If it is determined, having a control unit for starting the self-timer, and having a control unit for taking a picture after the time measurement of the self-timer,
When it is determined that one or more selected from the entire image, the specific object of the image, or the digital camera body of the present invention is stopped after the shutter key is pressed, the self-timer is started, and the self-timer And a control unit for taking a picture after the time is counted. 6. The digital camera according to claim 5, wherein the first image is captured immediately after the shutter key is pressed, and the entire image or a specific object of the image or the digital camera main body of the present invention after the first image is captured. If it is determined that one or more of the selected ones are stopped, the second image is taken, and the self-timer is started after the second image is taken. And a control unit that performs an operation of shooting
When the first image is taken after the shutter key is pressed, and it is determined that one or more selected from the entire image, a specific object of the image, or the digital camera body of the present invention is stopped, 2 A digital camera comprising: a control unit that takes a picture of a first picture, starts a self-timer immediately after that, and takes a picture of a third picture after the self-timer finishes timing. 6. The digital camera according to claim 5, wherein it is determined immediately after the shutter key is pressed that one or more selected from the entire image, a specific object of the image, or the digital camera body of the present invention is stopped. The operation of taking the first image and starting the self-timer after the first image is taken, and during the time counting of the self-timer, the entire image or a specific object of the image or the digital camera body of the present invention When it is determined that one or more of the selected frames are stopped or there is a motion frame that is less than or equal to a specific value, an operation for sequentially taking images from the second frame to the (n-1) th frame, and the timing of the self-timer After completion, it is determined that one or more selected from the entire image, the specific object of the image, or the digital camera body of the present invention are stopped. If you have a control unit for operating and performing a final n-th shot,
When it is determined that one or more selected from the entire image, the specific object of the image, or the digital camera body of the present invention are stopped after the shutter key is pressed, the first image is taken, The self-timer is started after taking a picture, and either or all of the entire image or a specific object of the image or the digital camera body of the present invention is stopped during the time counting of the self-timer, or When it is determined that there is a frame whose movement is equal to or less than a specific value, the second to n-1th frames are sequentially photographed, and after the time measurement of the self-timer, the entire image or a specific object of the image or the present invention A control unit that takes the last n-th image when it is determined that one or more of the selected digital camera bodies are stopped. Digital camera, wherein the door. An electronic apparatus comprising the digital camera according to any one of claims 1 to 7.

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