JP2006186764A - Imaging apparatus, and mobile apparatus and mobile phone provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus which prevents a user from being made conscious of a correction processing time and to provide a mobile apparatus and a mobile phone. <P>SOLUTION: The imaging apparatus is constituted so that an image storage section temporarily stores original image data imaged by an imaging section, an image data size reduction section reduces a size of the original image data to form display image data, and an image display section displays the display image data, wherein an angular velocity detection section to detect an angular velocity of the imaging section (step S5), a camera-shake discrimination section discriminates whether or not a camera-shake takes place in the original image data on the basis of the detected angular velocity (steps S9, S12), a first camera-shake correction section corrects the camera-shake of the display image data and display the corrected data to the image display section when a result of the discrimination indicates a camera-shake occurrence state (step S13), and a second camera-shake correction section corrects the camera-shake of the original image data to form corrected image data while the first camera-shake correction section displays the display image data on the image display section (steps S15 to S17). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an imaging device having an imaging unit that captures an image of a subject and generates image data, and a portable device and a mobile phone using the imaging device.

Conventionally, when the camera shake correction mode is selected, the shutter speed is automatically increased by n times and the sensitivity is increased by n times, and once the photographer presses the shutter button, the image is automatically captured continuously for n frames. And detecting the shift amount of the digital image data corresponding to the captured image of each frame, correcting each digital image data by the detected shift amount, and combining them to generate digital image data for one frame. In addition, there is known a camera shake correction apparatus in which the finally generated digital image data has a constant noise amount and reduces the camera shake amount to 1 / n (see, for example, Patent Document 3).
JP-A-11-88810 (first page, FIG. 1) JP-A-11-95307 (first page, FIG. 1) JP 2004-266648 A (first page, FIG. 1)

  However, the conventional examples described in the above-mentioned Patent Documents 1 and 2 simply have a function of notifying the camera that camera shake has occurred, and cannot check image data corrected for camera shake. If the image has to be taken again and cannot be taken again, the only way to save the image data in the camera shake state is to solve the problem of unsatisfactory user convenience.

  Further, in the conventional example described in Patent Document 3, when the camera shake correction mode is set, a plurality of image data is captured by automatically increasing the shutter speed and increasing the sensitivity and capturing a plurality of image data. It is necessary to process the image data of the sheet at the same time, which increases the amount of memory and calculation processing required, and increases the time until the image data after correction processing is displayed on the display unit. There is an unresolved issue that gives the impression that time is long.

  Accordingly, the present invention focuses on the unsolved problems of the above-described conventional example, and an object thereof is to provide an imaging device, a mobile device, and a mobile phone that do not make the user aware of the correction processing time.

An imaging device according to a first aspect of the present invention is stored in the imaging unit that images a subject and generates image data, an image storage unit that temporarily stores original image data captured by the imaging unit, and the image storage unit. An image data size reduction unit that reduces the size of image data that is displayed to form display image data, and an image display unit that displays the display image data formed by the image data size reduction unit. And
A camera shake determination unit that determines whether or not camera shake has occurred in the captured image data, and display image data that is formed by the image data size reduction unit when the determination result of the camera shake determination unit is a camera shake occurrence state A first camera shake correction unit that corrects camera shake and displays the image on the image display unit, and the original image data is corrected while the display image data is being displayed on the image display unit by the first camera shake correction unit. And a second camera shake correction unit for forming corrected image data.

  In the first invention, when the electronic imaging unit captures a subject and generates image data, it is determined whether or not camera shake has occurred in the image data captured by the camera shake determination unit. The image data for display formed by the image data reduction unit in the first camera shake correction unit is displayed on the image display unit, so that the time until the corrected image is displayed on the image display unit is reduced. Since the camera shake correction is performed on the original image data in the second camera shake correction unit in a state where the user can visually recognize the corrected image, without making the user aware of the camera shake correction processing time, A camera shake correction process for the current image data can be performed.

  An imaging device according to a second aspect of the invention is stored in the imaging unit that images a subject and generates image data, an image storage unit that temporarily stores original image data captured by the imaging unit, and the image storage unit. An image data size reduction unit that reduces the size of image data that is displayed to form display image data, and an image display unit that displays the display image data formed by the image data size reduction unit. An angular velocity detection unit that detects an angular velocity of the imaging unit, a camera shake determination unit that determines whether or not a camera shake occurs in image data captured based on the angular velocity detected by the angular velocity detection unit, and the camera shake determination A first camera shake correction unit that corrects the image data for display formed by the image data size reduction unit and displays the image data on the image display unit when the determination result of the unit is a camera shake occurrence state; A shake correction unit includes a second shake correction unit that corrects the original image data to form corrected image data while displaying the display image data on the image display unit. .

  In the second aspect of the invention, when the electronic image pickup unit picks up the subject and generates image data, the angular velocity detection unit such as a gyro sensor detects the angular velocity, and the camera shake occurs in the image data picked up by the camera shake determination unit. When the camera shake is occurring, the first camera shake correction unit performs the camera shake correction on the display image data formed by the image data reduction unit, and is displayed on the image display unit. The time until the corrected image is displayed on the image display unit can be shortened, and the camera shake correction is performed on the original image data by the second camera shake correction unit while the user is viewing the corrected image. Therefore, it is possible to perform the camera shake correction process for the current image data without making the user aware of the camera shake correction process time.

  An image pickup apparatus according to a third aspect of the invention is an image pickup unit that picks up a subject and generates image data, an image storage unit that temporarily stores original image data picked up by the image pickup unit, and a storage in the image storage unit. An image pickup apparatus comprising: an image data size reduction unit that reduces the size of the image data that is displayed to form display image data; and an image display unit that displays the display image data formed by the image data size reduction unit An angular velocity detection unit that detects an angular velocity of the imaging unit, and whether or not camera shake has occurred in the original image data stored in the image storage unit based on the angular velocity detected by the angular velocity detection unit Whether the camera shake has occurred in the image data for display formed by the image data size reduction unit when the determination result of the first camera shake determination unit and the determination result of the first camera shake determination unit are in the state of occurrence of camera shake A first camera shake determination unit that determines whether or not the reduced image data is subjected to camera shake correction and is displayed on the image display unit when a determination result of the second camera shake determination unit is a camera shake occurrence state. A correction unit; and a second camera shake correction unit configured to correct the original image data to form corrected image data while displaying the display image data on the image display unit by the first camera shake correction unit. It is characterized by having.

  In the third aspect of the invention, when the first camera shake determination unit determines that camera shake has occurred in the original image data, camera shake has occurred in the display image data reduced by the second camera shake determination unit. The display image data can be immediately displayed on the image display unit when no camera shake has occurred, and when the camera shake has occurred, the display image data is displayed by the first camera shake correction unit. By correcting the camera shake and displaying it on the image display unit, it becomes possible to display the correction display image data in a short time on the image display unit, and in the state where the correction display image data is displayed on the display unit, Since the second image stabilization unit performs image stabilization processing on the original image data to form corrected image data, the image stabilization processing for the original image data can be performed without the user being aware of the correction processing time. It can be carried out.

An imaging device according to a fourth invention is characterized in that, in the second or third invention, the angular velocity detection unit is constituted by a gyro sensor.
In the fourth aspect of the invention, since the angular velocity is detected by the gyro sensor, the angular velocity of the imaging unit can be accurately detected, and an accurate rotation angle can be calculated.
An image pickup apparatus according to a fifth invention is the imaging device according to the fourth invention, wherein the gyro sensor is arranged in parallel with a fixed substrate formed of a rectangular quartz thin plate, and one opposing side surface of the fixed substrate via a support portion. It is characterized by comprising a pair of excitation vibration arms provided and a detection vibration arm connected to the other opposing side surface of the fixed substrate.

In the fifth aspect of the invention, the gyro sensor can be reduced in size and can be easily mounted on a digital camera, a cellular phone, or the like.
An image pickup apparatus according to a sixth invention is the image pickup device according to any one of the first to sixth inventions, wherein the first camera shake correction unit corrects the image data for display and displays the image data on the image display unit. The camera shake correction mark indicating that the camera shake correction has been performed is displayed together with the correction display image data.

In the sixth aspect of the invention, when the display image data is corrected and displayed on the image display unit, a correction mark indicating that the camera shake correction has been performed is displayed together with the correction display image data. You can recognize what happened.
In any one of the first to sixth inventions, the image pickup device according to a seventh aspect is the corrected image data formed when the second hand shake correction unit finishes the hand shake correction for the original image data. Is supplied to the image data reduction unit.

In the seventh aspect of the invention, when the second camera shake correction unit completes the camera shake correction for the original image data, the formed corrected image data is supplied to the image data reduction unit. Since the image is reduced and displayed on the image display unit, the user can check the corrected image data.
The imaging device according to an eighth aspect of the present invention is the imaging device according to any one of the first to sixth aspects, wherein the second camera shake correction unit forms the corrected image data formed when the camera shake correction for the original image data is completed. A selection display for selecting whether to display or not is configured to be displayed on the image display unit.

In the eighth aspect of the invention, when the camera shake correction for the original image data is completed, a selection display for selecting whether or not to display the formed corrected image data is displayed on the image display unit. Whether to display or not can be selected.
Since the mobile device according to the ninth aspect includes any one of the imaging devices according to the first to eighth aspects, the camera shake correction process can be performed without the user being aware of it.

  Since the mobile phone according to the tenth invention includes any one of the imaging devices according to the first to eighth inventions, the image correction processing is easily performed on the user by the mobile phone which is easy to shake and has a limited calculation processing capability. The camera shake correction process can be performed without being aware of the above.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments in the case where the present invention is applied to a mobile phone will be described below based on the drawings.
FIG. 1 is a perspective view showing an embodiment of the present invention, in which CT is a mobile phone, and a rectangular plate-like base member 1 and a lid member 2 covering the upper surface of the base member 1 are hinged. 3 connected to each other.
As shown in FIG. 1A, the base member 1 is provided with an operation portion 4 having operation buttons on its upper surface, and a microphone 5 is disposed on the side opposite to the hinge 3. As shown in b), a radio communication antenna 6 that protrudes to the outside and communicates with the radio communication base station is attached to the end face on the hinge 3 side.

As shown in FIG. 1A, the lid member 2 is provided with an image display unit 8 on the surface facing the base member 1, and a speaker 9 is provided on the opposite side of the image display unit 8 from the hinge 3. It has been. Here, as the image display unit 8, for example, a liquid crystal panel, an organic EL panel, a plasma display panel, or the like can be applied.
Further, as shown in FIG. 1B, an imaging device 10 is attached to the back surface of the lid member 2, and a gyro sensor 11 as an angular velocity detection unit is provided inside the lid member 2 in the vicinity of the imaging device 10. Is provided.

  As shown in FIG. 2, the gyro sensor 11 includes a sensor body 111 housed in a package 112 using a piezoelectric material or the like, and the package 112 is formed in a box shape capable of housing the sensor body 111. And a drive means (not shown) such as an excitation circuit for exciting the sensor body 111, a circuit (not shown) for detecting vibration from the sensor body 111, and the like.

  The sensor main body 111 includes a square fixed substrate 113 formed into a thin plate by etching a crystal, and a pair of excitations arranged in parallel on one opposing side surface of the fixed substrate 113 via support portions 114 and 115. The vibration arms 116 and 117 for detection and the vibration arms 118 and 119 for detection connected to the other opposite side surface of the fixed substrate 113 are configured. Each of the vibrating arms for excitation 116 and 117 is formed with long grooves 120 and 121 arranged in the longitudinal direction, and excitation electrodes 122 and 123 having different polarities are arranged in the grooves 120 and 121, respectively. ing.

  In the gyro sensor 11, by applying a driving voltage to the excitation vibrating arms 116 and 117 from an excitation circuit (not shown) as a driving means, as shown by an arrow E in FIG. Vibrate as they approach and separate. At this time, as shown in FIG. 2, when the rotational angular velocity ω acts around the center O of the fixed substrate 113 in the plane of the paper, the Coriolis force Fc acts in the direction F of FIG. This vibration is transmitted to the detection vibrating arms 118 and 119 via the support portions 114 and 115 and the fixed substrate 113. In other words, the excitation vibrating arms 116 and 117 receive the Coriolis force Fc acting in the vector product direction of the vibration direction in the X-axis direction and the rotational angular velocity ω, and according to the following formula, It vibrates alternately in the -Y direction (walk vibration). This vibration is transmitted to the detection vibrating arms 118 and 119 via the support portions 114 and 115 and the fixed substrate 113, and the detection vibrating arms 118 and 119 vibrate as indicated by an arrow H in FIG.

Fc = 2mV · ω
Here, m is the mass of the vibrating portion of the excitation vibrating arms 116 and 117, and V is the velocity of the excitation vibrating arms 116 and 117.
For this reason, as shown in FIG. 3 showing a cross section of the detection vibrating arms 118 and 119, one detection electrode 124 of the detection vibrating arms 118 and 119 and the other detection are caused by the vibration in the H direction of FIG. An electric field as indicated by an arrow is generated between the working electrode 125. The angular velocity ω can be detected by taking out an electric field based on the vibration of the vibrating arms for detection 118 and 119 as a signal. By using the gyro sensor 11 having such a configuration, a small package of about 1 mm square can be obtained, and the size can be sufficiently mounted on the mobile phone CT.

  As shown in FIG. 4, the imaging device 10 is an image storage unit that includes an imaging unit 12 that captures an image of a subject and RAM, DRAM, and the like that store original image data output from the imaging unit 12. A buffer memory 13, an image compression unit 14 that generates compressed image data by subjecting the original image data stored in the buffer memory 13 to image compression processing in, for example, JPEG format, and compressed image data output from the image compression unit 14 Is stored in the buffer memory 13, the image decompression unit 16 that reads the compressed image data stored in the flash memory 15, decompresses the image according to the JPEG format, and stores the decompressed image data in the buffer memory 13. A VRAM 17 for storing display image data obtained by reducing the image data to a low number of pixels, and the VRAM 17 A display control unit 18 for displaying the displayed display image data on the image display unit 8, an imaging unit 12, a buffer memory 13, an image compression unit 14, a flash memory 15, an image expansion unit 16, a VRAM 17, and a display control unit 18. A microcomputer 19 as a control unit to be controlled and an interface unit 20 for outputting image data stored in the flash memory 15 to an external personal computer, a printer or the like are provided.

  Here, in the imaging unit 12, the subject image that has entered through the lens 21 is photoelectrically converted by the CCD imaging device 22, and the photoelectrically converted analog signal output from the CCD imaging device 22 is converted into the A / D conversion unit 23. The digital signal is converted into a digital signal and supplied to the image processing unit 24. The image processing unit performs various image correction processes such as comma correction and white balance adjustment, and outputs the result to the buffer memory 13.

The buffer memory 13 is configured to store image data of 1200 × 1600 pixels, for example, and the VRAM 17 is configured to store image data for display of 120 × 160 pixels, for example.
The microcomputer 19 receives the angular velocity detected by the gyro sensor 11 and the operation signal input from the operation unit 4, and executes various programs such as an operating system and application programs stored in the built-in ROM and RAM. Then, the imaging unit 12, the buffer memory 13, the image compression unit 14, the flash memory 15, the image expansion unit 16, the VRAM 17, and the display control unit 18 are controlled.

Then, the microcomputer 19 executes the imaging process shown in FIG.
This image processing is started when the shooting mode is selected on the menu screen. First, in step S1, it is determined whether or not the shutter button 4s is pressed by the operation unit 4, and the shutter button 4s is pressed. If not, the process proceeds to step S2, and the image data captured by the imaging unit 12 is stored in the buffer memory 13, and then the process proceeds to step S3 to reduce the image data stored in the buffer memory 13 for display. Image data is formed, stored in the VRAM 17, and then the process proceeds to step S4, where the display image data stored in the VRAM 17 is output and displayed on the image display unit 8, and then the process returns to step S1.

If the determination result of step S1 is that the shutter button 4s is pressed, the process proceeds to step S5, the angular velocity detected by the gyro sensor 11 is read, and then the process proceeds to step S6, where the read angular velocity is integrated. To calculate the rotation angle θ.
Next, the process proceeds to step S7, and the digital image data output from the imaging unit 12 is stored as still image data of, for example, 1200 × 1600 pixels in the buffer memory 13, and then the process proceeds to step S8 and stored in the buffer memory 13. The still image data thus displayed is reduced to display image data of 120 × 160 pixels and stored in the VRAM 17.

  Next, the process proceeds to step S9, where it is determined whether or not the rotation angle θ exceeds a first threshold value θt1 at which camera shake occurs in preset original image data. If θ ≦ θt1, camera shake is detected in the original image data. In step S 10, the display image data stored in the VRAM 17 is supplied to the image display unit 8 for display, and then the process proceeds to step S 11 in the buffer memory 13. The stored original image data is supplied to the image compression unit 14 to form compressed image data compressed in the JPEG format. The acceleration detected by the gyro sensor 11 is added to the compressed image data as, for example, metadata, and the flash memory. 15, the imaging process is terminated.

  On the other hand, when the determination result in step S9 is θ> θt1, the process proceeds to step S12, and a second value that is larger than the first threshold value θt1 at which camera shake occurs in the display image data with the rotation angle θ reduced. It is determined whether or not the threshold value θt2 (> θt1) is exceeded. If θ ≦ θt2, it is determined that no camera shake has occurred in the reduced display image data, and the process jumps to step S14 to be described later.

If the determination result in step S12 is θ> θt2, it is determined that camera shake has occurred in the reduced display image data, the process proceeds to step S13, and the display image data stored in the VRAM 17 is detected. Then, after performing the camera shake correction process based on the rotation angle θ, the process is written again in the VRAM 17, and then the process proceeds to step S14.
In step S14, the display image data stored in the VRAM 17 is output and displayed on the image display unit 8, and then the process proceeds to step S15.

  In step S15, camera shake correction processing is performed on the original image data stored in the buffer memory 13 based on the rotation angle θ to form corrected image data. Then, the process proceeds to step S16, and the formed correction is performed. The image data is supplied to the image compression unit 14 to form compressed image data obtained by compressing the image in the JPEG format. Then, the process proceeds to step S17, and the acceleration detected by the gyro sensor 11 is added to the compressed image data as, for example, metadata. Then, after performing the storage process stored in the flash memory 15, the imaging process is terminated.

  In the process of FIG. 5, the process of step S2 and the gyro sensor 11 correspond to the angular velocity detection unit, the process of steps S3 and S8 and the VRAM 17 correspond to the image data size reduction unit, and the process of steps S9 and S10 are determined as camera shake. The processing in step S9 corresponds to the first camera shake determination unit, the processing in step S10 corresponds to the second camera shake determination unit, and the processing in step S13 corresponds to the first camera shake correction unit. The processing in steps S15 to S17 corresponds to the second camera shake correction unit.

Next, the operation of the above embodiment will be described.
As shown in FIG. 1A, when the cellular phone CT is in a state where the lid member 2 is opened with respect to the base member 1 and the photographing mode is selected from the menu screen on the image display unit 8, the imaging shown in FIG. The process is started.
At this time, when the shutter button 4s is not pressed, when the lens 21 is directed toward the subject, the subject image passes through the lens 21 and is formed on the CCD image pickup device 22, and is photoelectrically converted by the CCD image pickup device 22. After the analog signal output from the image sensor 22 is converted into a digital signal by the A / D converter 23, the image data subjected to various image correction processes such as gamma correction and white balance adjustment in the image processing unit 24 is buffer memory. 13 (step S2). The image data stored in the buffer memory 13 is reduced and stored in the VRAM 17 as display image data (step S3), and the display image data stored in the VRAM 17 is displayed on the image display unit 8 (step S3). S4).

Therefore, a composition is considered while visually recognizing the subject image displayed on the image display unit 8, and when the composition is determined, the shutter sound is emitted when the shutter button 4s is pressed.
In this way, when the shutter button 4s is pressed, in the process of FIG. 5, the process proceeds from step S1 to step S5, the angular velocity detected by the gyro sensor 11 at that time is read, and the read angular velocity is integrated. Thus, the rotation angle θ is calculated (step S6).

Next, the image data output from the imaging unit 12 is stored in the buffer memory 13 as original image data of 1200 × 1600 pixels (step S7), and then the original image data is subjected to reduction processing to display image data of 120 × 160 pixels. Is stored in the VRAM 17 (step S8).
Then, based on the rotation angle θ, it is determined whether or not camera shake has occurred in the original image data stored in the buffer memory 13, and when the rotation angle θ is equal to or less than the first threshold θr1, camera shake is detected in the original image data. In step S 10, the display image data stored in the VRAM 17 is output to the image display unit 8 for display, and then the original image data stored in the buffer memory 13 is displayed. Is compressed in the JPEG format and the acceleration detected by the gyro sensor 11 is added to the compressed image data as metadata and stored in the flash memory 15.

However, if the result of determination in step S9 is that the rotation angle θ exceeds the first threshold θt1, it is determined that camera shake has occurred in the original image data, and then the rotation angle θ is the second threshold. It is determined whether or not θt2 is exceeded (step S12).
At this time, when the rotation angle θ is equal to or smaller than the second threshold θt2, the camera shake state is displayed when the display image data displayed on the image display unit 8 is reduced to 1/100 the number of pixels with respect to the original image data. The image data for display stored in the VRAM 17 is displayed on the image display unit 8 as it is. At this time, the display image data stored in the VRAM 17 is displayed on the image display unit 8 as it is, so that the display on the image display unit 8 can be immediately performed.

  Then, while displaying the display image data on the image display 8, a camera shake correction process is executed on the original image data stored in the buffer memory 13 in the background based on the rotation angle θ (step S15). ) When the camera shake correction process for the original image data is completed, the corrected image data is supplied to the image compression unit 14 to form compressed image data (step S16), and the acceleration detected by the gyro sensor 11 is added to the compressed image data. The data is added and stored in the flash memory 15 (step S17).

Therefore, it is possible to complete the camera shake correction processing of the original image data while the user determines whether to visually view and store the display image data displayed on the image display unit 8, which takes time. The camera shake correction process can be completed without the user being aware of the camera shake correction process of the original image data.
However, when the rotation angle θ exceeds the second threshold θt2, it is determined that camera shake is recognized when the display image data stored in the VRAM 17 is displayed as it is on the image display unit 8, and the VRAM 17 Is subjected to camera shake correction processing based on the rotation angle θ to form corrected display image data, which is stored again in the VRAM 17 (step S13), and stored in the VRAM 17. The corrected display image data is output to the image display unit 8 and displayed.

  For this reason, the display image data stored in the VRAM 17 is data obtained by reducing the original image data to 1/100 of the number of piscells. Therefore, when the camera shake correction process is performed on the display image data, The correction processing time can be processed in a much shorter time than when the original image data is subjected to camera shake correction processing, and the corrected display image data can be displayed on the video display unit 8 in a short time. Also in this case, the corrected display image data can be displayed on the video display unit 8 without the user being aware of the camera shake correction time.

  Then, the corrected display image data is displayed on the video display unit 8 and stored in the buffer memory 13 in the background while the user determines whether to visually recognize and store the corrected display image data. The camera shake correction process can be completed based on the rotation angle θ for the original image data having a large number of pixels, and the camera shake correction process is performed without the user being aware of the time-consuming camera shake correction process. Processing can be completed.

  When this imaging process is repeated to store a plurality of compressed image data in the flash memory 15 and to output the stored compressed image data to an external personal computer or printer, a personal computer or printer is connected to the interface unit 20. Then, by transferring the compressed image data stored in the flash memory 15, the compressed image data is output to a personal computer or a printer and displayed on a large-screen display device connected to the personal computer. Can be printed.

  As described above, according to the embodiment, when it is necessary to perform camera shake correction on the original image data captured by the imaging unit 12, the presence or absence of camera shake correction is determined for the display image data obtained by reducing the original image data. When there is no need for correction, the display image data is immediately displayed on the image display unit 8, and when there is a need for camera shake correction, the corrected display image data obtained by performing the camera shake correction processing on the display image data with a small number of pixels. A camera shake correction process is performed on the original image data which is displayed on the image display unit 8 in a short time and has a large number of pixels while the display image data is displayed on the image display unit 8 in any case. Since the corrected original image data is stored in the flash memory 15, the display image data is formed based on the corrected original image data after the original image data is corrected for camera shake. Compared to displaying on the image display unit, the image data for display can be displayed in the image display unit in a much shorter time, and the original image can be displayed without making the user aware of the camera shake correction processing time. Data shake correction can be performed.

  In addition, when it is necessary to perform camera shake correction on the original image data, it is determined whether camera shake correction is necessary for the display image data obtained by reducing the original image data. When image stabilization is not required, the display image data can be displayed as it is on the image display unit 8, and the image display on the image display unit 8 can be displayed without waiting time.

  In the above-described embodiment, the case where the original image data needs to be subjected to camera shake correction and the corrected original image data for which camera shake correction is completed is stored in the flash memory 15 as it is, but the present invention is not limited to this. Instead, as shown in FIG. 6, after step S17 of FIG. 5 described above, the corrected compressed image data stored in the flash memory 17 is read by the image decompression unit 16 and decompressed in the JPEG format before being buffered. Step S18 to be stored in Step 13, Step S19 in which the corrected original image data stored in the buffer memory 13 is reduced to form display image data and stored in the VRAM 17, and Display image data stored in the VRAM 17 Is output to the image display unit 18 to display the image, and the final image is subjected to camera shake correction. Do corrected image data is automatically displayed on the video display unit 8 the image data for display by reducing the, it may be received user confirmation. Further, instead of automatically displaying the final corrected image data subjected to camera shake correction, as shown in FIG. 7, whether or not the final corrected image data is displayed on the image display unit 8 between steps S17 and S18. Step S21 for displaying a selection screen on which a display button and a non-display button for selecting the button are displayed; Step S22 for determining whether or not the display button is selected on the operation unit 4; and the determination result of Step S22 is When the display button is selected, the process proceeds to step S18. When the display button is not selected, the process proceeds to step S23, where it is determined whether or not the non-display button is selected, and the non-display button is selected. Sometimes, the imaging process is ended as it is, and when the non-display button is not selected, the process returns to the step S22 to finally correct the camera shake. Whether to confirm the corrected image data may be selected by the user.

In the above embodiment, the case where the present invention is applied to the mobile phone CT has been described. However, the present invention is not limited to this, and a single imaging device such as a digital camera, a PDA (Personal Digital Assistant), etc. It can also be applied to other portable devices.
Furthermore, although the case where the gyro sensor 11 was applied as an angular velocity detection part was demonstrated in the said embodiment, it is not limited to this, You may make it apply another angular velocity sensor.

  Furthermore, in the above-described embodiment, the case has been described in which it is determined whether or not camera shake has occurred based on the angular velocity detected by the angular velocity detection unit in the camera shake determination unit, but the present invention is not limited to this. The occurrence state may be detected by software processing of the image data to determine whether or not camera shake has occurred.

It is a perspective view which shows one Embodiment at the time of applying this invention to a mobile telephone. It is a block diagram which shows a gyro sensor. It is the DD sectional schematic sectional drawing of FIG. It is a block diagram which shows an example of an imaging device. 6 is a flowchart illustrating an example of an imaging process procedure executed by the microcomputer of FIG. 4. It is a flowchart which shows the other example of the imaging process procedure performed with a microcomputer. It is a flowchart which shows the further another example of the imaging process procedure performed with a microcomputer.

Explanation of symbols

CT: mobile phone, 1 ... base member, 2 ... lid member, 4 ... operation unit, 4s ... shutter button, 8 ... image display unit, 10 ... imaging device, 11 ... gyro sensor, 12 ... imaging unit, 13 ... buffer memory , 14 ... Image compression unit, 15 ... Flash memory, 16 ... Image decompression unit, 17 ... VRAM, 18 ... Display control unit, 19 ... Microcomputer, 111 ... Sensor body, 112 ... Package, 113 ... Fixed substrate, 114, 115 ... Supporting part, 116,117 ... Excitation vibration arm, 118,119 ... Detection vibration arm

Claims (10)

An imaging unit that captures an image of a subject and generates image data, an image storage unit that temporarily stores original image data captured by the imaging unit, and a reduced size of the image data stored in the image storage unit An image pickup apparatus comprising: an image data size reduction unit that forms image data for use; and an image display unit that displays display image data formed by the image data size reduction unit,
A camera shake determination unit that determines whether or not camera shake has occurred in the captured image data, and display image data that is formed by the image data size reduction unit when the determination result of the camera shake determination unit is a camera shake occurrence state A first camera shake correction unit that corrects camera shake and displays the image on the image display unit, and the original image data is corrected while the display image data is being displayed on the image display unit by the first camera shake correction unit. And a second camera shake correction unit that forms corrected image data. An imaging unit that captures an image of a subject and generates image data, an image storage unit that temporarily stores original image data captured by the imaging unit, and a reduced size of the image data stored in the image storage unit An image pickup apparatus comprising: an image data size reduction unit that forms image data for use; and an image display unit that displays display image data formed by the image data size reduction unit,
An angular velocity detection unit that detects an angular velocity of the imaging unit, a camera shake determination unit that determines whether or not camera shake has occurred in image data captured based on the angular velocity detected by the angular velocity detection unit, and a camera shake determination unit A first camera shake correction unit that corrects camera shake of display image data formed by the image data size reduction unit and displays the image on the image display unit when the determination result is a camera shake occurrence state; and the first camera shake correction unit. An image pickup apparatus comprising: a second camera shake correction unit that corrects camera shake of the original image data to form corrected image data while displaying the display image data on the image display unit. An imaging unit that captures an image of a subject and generates image data, an image storage unit that temporarily stores original image data captured by the imaging unit, and a reduced size of the image data stored in the image storage unit An image pickup apparatus comprising: an image data size reduction unit that forms image data for use; and an image display unit that displays display image data formed by the image data size reduction unit,
An angular velocity detection unit that detects an angular velocity of the imaging unit, and a first unit that determines whether camera shake has occurred in the original image data stored in the image storage unit based on the angular velocity detected by the angular velocity detection unit When the determination result of the first camera shake determination unit and the first camera shake determination unit is a camera shake occurrence state, it is determined whether or not camera shake has occurred in the display image data formed by the image data size reduction unit. A second camera shake determination unit; and a first camera shake correction unit configured to perform camera shake correction on the reduced image data and display the image display unit when the determination result of the second camera shake determination unit is a camera shake occurrence state, A second camera shake correction unit that forms the corrected image data by correcting the original image data while the display image data is being displayed on the image display unit by the first camera shake correction unit; Features Imaging device.   The imaging apparatus according to claim 2, wherein the angular velocity detection unit includes a gyro sensor.   The gyro sensor includes a fixed substrate composed of a rectangular quartz thin plate, a pair of excitation vibrating arms disposed in parallel on one opposing side surface of the fixed substrate via a support, and the other of the fixed substrate The imaging apparatus according to claim 4, further comprising: a detection vibrating arm continuously provided on the opposite side surface of the imaging device.   The first camera shake correction unit is configured to display a camera shake correction mark indicating that the camera shake correction is performed together with the correction display image data when the display image data is subjected to camera shake correction and displayed on the image display unit. The imaging apparatus according to claim 1, wherein the imaging apparatus is provided.   The second camera shake correction unit is configured to supply the formed corrected image data to the image data reduction unit when the camera shake correction for the original image data is completed. The imaging device according to any one of the above.   The second camera shake correction unit is configured to display on the image display unit a selection display for selecting whether or not to display the formed corrected image data when the camera shake correction for the original image data is completed. The image pickup apparatus according to claim 1, wherein the image pickup apparatus is an image pickup apparatus.   A portable device comprising the imaging device according to claim 1. A mobile phone comprising the imaging device according to claim 1.

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