JP2003274265A - Image display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display which can easily shift the indication target region of an image during indication. <P>SOLUTION: When the magnified indication by the electronic zoom of an image shown on an LCD 50 by an image file is performed, this detects the direction of deflection to a digital camera 10, the quantity of deflection, and the deflection speed by means of a panning detector 31, and this shifts the indication target region of the image indicated on the LCD 50 at a speed geared to the above deflection speed, by the above quantity of deflection and the quantity of shifting based on the magnification of enlargement by electronic zoom in the reverse direction from the above direction of deflection. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device, and more particularly to an image display device provided with display means for displaying an image represented by image information.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
As a digital camera such as a digital still camera or a digital video camera having a display means such as a liquid crystal display, a switch provided on the digital camera in a state where an image indicated by image data recorded by photographing is displayed by the display means. In some cases, the display image can be magnified by the electronic zoom according to the operation on the operation means such as.

Some digital cameras of this type can move the display target area of the display means in response to an operation on an operation means such as a switch while the display image is enlarged by electronic zoom. .

However, in such a digital camera capable of moving the display target area, the operation for enlarging the display image by the electronic zoom and the operation for moving the display target area are performed by the operation means. So
There was a problem that the operation was complicated.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an image display device capable of easily moving a display target area of an image being displayed.

[0006]

In order to achieve the above object, an image display device according to claim 1 is an image display device having a display means for displaying an image indicated by image information, and the display is provided. Detecting means for detecting a shake direction with respect to the image display device in a state where the image is displayed on the means, and a display target area of the image displayed on the display means in the shake direction detected by the detecting means. And a moving unit that moves a predetermined amount in the opposite direction.

According to the image display device of the first aspect,
The shake direction with respect to the image display device is detected by the detecting means while the image indicated by the image information is displayed on the display means, and the display target area of the image displayed on the display means is changed by the moving means. It is moved in the opposite direction by a predetermined amount. The display means includes a liquid crystal display, a plasma display, an organic EL (Electr
Various displays such as o-Luminescence) display and CRT display are included.

That is, in the present invention, the moving direction of the display target area of the image displayed on the display means is detected by the detecting means as the opposite direction of the shake direction with respect to the image display device, and thus the display target is displayed. The operation for instructing the moving direction of the area is greatly simplified.

As described above, according to the image display device of the first aspect, the shake direction with respect to the image display device is detected while the image is displayed on the display device, and the image displayed on the display device is detected. Since the display target area is moved by a predetermined amount in the direction opposite to the detected shake direction, the display target area of the image being displayed can be easily moved.

By the way, when a partial area of the image indicated by the image information is enlarged and displayed on the display means by electronic zoom, the image information includes image information corresponding to the area not displayed on the display means. It is included, and the image corresponding to this area can be scrolled and displayed on the display means.

Focusing on this point, in the image display device according to a second aspect of the present invention, in the invention according to the first aspect, the detection means performs an enlarged display of the image on the display means by electronic zoom. In this case, the shake direction is detected.

According to the image display device of the second aspect,
The shake direction is detected by the detection means when the display means of the present invention is displaying an enlarged image by electronic zoom. As a result, the movement of the display target area by the moving unit is performed only when the display unit is performing the enlarged display of the image by the electronic zoom.

As a result, in the present invention, the display target area of the image on the display means is moved by scrolling, and the display target area can be moved with an operational feeling similar to panning at the time of shooting.

As described above, according to the image display device of the second aspect, it is possible to obtain the same effect as that of the invention of the first aspect, and by the electronic zoom of the image indicated by the image information on the display means. Since the shake direction of the present invention is detected when the enlarged display is being performed, the display target area can be moved with an operation feeling similar to panning at the time of shooting.

Further, in the image display device according to a third aspect, in the invention according to the second aspect, the detecting means further sets a shake amount with respect to the image display device in a state where the image is displayed on the display means. Upon detection, the moving means determines the predetermined amount based on the enlargement magnification and the shake amount by the electronic zoom.

According to the image display device of the third aspect,
The detecting means further detects the shake amount with respect to the image display device in a state where the image is displayed on the display means in addition to the shake direction, and the moving means determines the predetermined amount of the present invention by the enlargement magnification by electronic zoom and the above. It is determined based on the shake amount.

That is, the amount of movement of the image displayed on the display means in accordance with the shake of the image display device is not only the amount of shake of the image display device but also a value corresponding to the apparent distance of the display image. It also depends on the magnification of the electronic zoom. Therefore, in the present invention, the amount of movement of the display image is determined in consideration of these two parameters, whereby the scroll movement of the display image due to the shake of the image display device is performed in a more realistic display state. I am able to

As described above, according to the image display device of the third aspect, it is possible to obtain the same effect as that of the invention of the second aspect, and at the same time, the image is displayed in the state where the image is displayed on the display means. Further, the shake amount with respect to the device is further detected, and the predetermined amount of the present invention is determined based on the enlargement magnification by the electronic zoom and the shake amount, so that the scroll movement of the display image due to the shake of the image display device is more realistic. This can be performed in the display state, and the operation feeling when moving the display target area can be further improved.

As a preferred mode of the invention described in claim 2 or claim 3 (hereinafter referred to as "first mode"),
The detection means further detects a shake speed with respect to the image display device in a state where the image is displayed on the display means, and the moving means moves the display target area of the image displayed on the display means. Is performed at a moving speed according to the shake speed.

According to the first aspect, the detecting means of the present invention further detects the shake speed with respect to the image display device while the image is displayed on the display means, and the moving speed is displayed on the display means. The movement of the display target area of the image is performed at a moving speed according to the shake speed.
Specifically, the moving speed of the display target area of the display image is increased as the shake speed is higher. Thereby, the scroll movement of the display image due to the shake of the image display device,
This can be performed in a more realistic display state, and the operation feeling when moving the display target area can be further improved.

As described above, according to the image display device of the first aspect, the same effect as that of the invention according to claim 2 or 3 can be obtained, and the image is displayed on the display means. Further, the shake speed with respect to the image display device is further detected, and the display target area of the image displayed on the display means is moved at a moving speed corresponding to the shake speed. The scroll movement can be performed in a more realistic display state, and the operation feeling when moving the display target area can be further improved.

A preferred embodiment of the present invention (hereinafter referred to as "second
Aspect. " ), The image of the present invention is a moving image. As a result, even when the image is obtained by shooting a moving subject, it is possible to easily move the display target region of the image being reproduced.

A preferred embodiment of the present invention (hereinafter referred to as "third embodiment"
Aspect. " ) Further includes a grip detection unit that detects that the image display device is gripped, and the detection unit detects the shake direction when the grip detection unit detects that the image display device is gripped. Can be mentioned.

According to the third aspect, the shake direction of the present invention is detected by the detecting means of the present invention when the grip detecting means detects that the image display device is gripped. As a result, the display image is moved by the moving means only when the image display device is gripped,
It is possible to prevent the display image from moving according to the shake with respect to the image display device when the image display device is not gripped.

Furthermore, a preferred embodiment of the present invention (hereinafter referred to as "fourth aspect"
Aspect. " ), A speed sensor is used as the detecting means of the present invention. Accordingly, at least one of the shake direction, shake amount, and shake speed of the image display device can be easily detected, so that the present invention can be easily realized. The speed sensor includes an acceleration sensor, an angular speed sensor, and an angular acceleration sensor.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. In addition, in the present embodiment, a case where the image display device of the present invention is applied to a digital camera will be described. First, FIG. 1 (A)
The external configuration of the digital camera 10 according to the present embodiment will be described with reference to FIG.

As shown in the figure, on the front of the digital camera 10, a lens 12 for forming a subject image,
The touch sensor 30F for detecting that the grip portion is gripped, the self-timer LED 44 for notifying the arrival of the shooting timing when shooting is performed using the self-timer function by the blinking interval, and the composition of the subject to be shot is determined. And a finder 46 used to do so.

A DC terminal 42 for connecting an AC adapter (not shown) for the digital camera 10 is provided on the side surface of the digital camera 10, and the upper surface of the digital camera 10 is used for shooting. Release button (so-called shutter) 30A that is pressed by the user
And a power switch 52.

The release button 30A according to the present embodiment is pressed to an intermediate position (hereinafter referred to as "half-pressed state") and to a final pressed position beyond the intermediate position. (Hereinafter, referred to as “full-pressed state”), the two-step pressing operation is possible.

Further, the digital camera 10 according to the present embodiment is constructed so as to be able to take not only still images but also moving images. When taking still images, the release is performed. After the button 30A is pressed halfway, the AE (Automatic Exposure) function is activated and the exposure state (shutter speed, aperture state) is set, then the AF (Auto Focus) function is activated. Focusing control is performed by pressing the button, and then the exposure (photographing) is performed by continuously pressing the button.

On the other hand, when shooting a moving image,
Shooting of a moving image is started by fully pressing the release button 30A, and the shooting state of the moving image is stopped by returning the pressed state of the release button 30A to an unpressed position once and then fully pressing it again. It is configured to be. As described above, in the digital camera 10 according to the present embodiment, the release button 30A is fully pressed when starting the shooting of a moving image, and the release button 30A is fully pressed again when the shooting is stopped. However, the release button 30A is not limited to this.
It is also possible to adopt a mode in which a moving image is captured during the period when is fully pressed.

On the other hand, on the rear surface of the digital camera 10, the eyepiece portion of the finder 46 described above, a liquid crystal display for displaying a subject image indicated by digital image data obtained by photographing, various menu screens, messages and the like. (Hereinafter referred to as “LCD”) 50, and a reproduction switch 30D operated when setting a reproduction mode which is a mode for displaying (reproducing) a subject image represented by digital image data obtained by photographing on the LCD 50. ,
A shooting switch 30E that is operated when the shooting mode is set to a shooting mode, and a cross cursor button 30B provided with four arrow keys that indicate four directions of up, down, left, and right movement in the display area of the LCD 50, A zoom button 30C that is operated when zooming (enlarging and reducing) a subject image during shooting is provided.
The zoom button 30C corresponds to the position of "T" in the figure, and is a telephoto button operated when enlarging the subject image.
It is composed of a button and a wide button corresponding to the position of “W” in the figure and operated when reducing the subject image. In addition to the role of setting the shooting mode, the shooting switch 30E also has the role of setting whether to shoot a still image or a moving image.

On the other hand, the bottom surface of the digital camera 10 is provided with a receptacle 40 used for connecting to an external device by a predetermined interface standard (USB (Universal Serial Bus) in this embodiment).
Note that the grip portion of the digital camera 10 has a built-in rechargeable battery 34 that supplies power to each unit when the AC adapter is not connected.

Next, referring to FIG. 1B, the digital camera 10 is connected to a personal computer (hereinafter referred to as "PC").
Say. ), A state in which the digital camera 10 and an external device (here, the PC 80) are connected using a cradle 60 used for easily connecting to an external device such as a PDA (Personal Digital Assistant, personal digital assistant). Will be described.

As shown in the figure, the cradle 60 according to this embodiment is provided with a camera insertion portion 61 into which the digital camera 10 is inserted when connecting to an external device through the cradle 60. The cradle connector 62 corresponding to the connection terminal of the receptacle 40 provided on the digital camera 10 is provided on the inner bottom surface of the camera insertion portion 61.
Is provided.

When the digital camera 10 is mounted on the cradle 60, the digital camera 10 is inserted in the direction of arrow A in FIG. As a result, the connection terminal of the receptacle 40 of the digital camera 10 is connected to the cradle connector 62. On the other hand, between the cradle 60 and the external device, a USB cable 72 compatible with the predetermined interface standard (USB in this embodiment) is provided.
Connected by. As a result, the digital camera 10 mounted on the cradle 60 can communicate with an external device according to the predetermined interface standard.

Further, the cradle 60 includes a cradle 6
An AC adapter (not shown) for 0 is pressed to operate the power switch 64 for switching between supplying and cutting off the power supply, a digital camera mounted on the cradle 60, and an external device connected to the cradle 60. Communication LED that lights up when communication is being performed with the device
66 and are provided.

In the following, as an external device connected to the digital camera 10 via the cradle 60, an external medium 82 (smart medium in this embodiment) capable of recording various information is attached, and A case where the PC 80 equipped with the display unit 84 (in this embodiment, a liquid crystal display) for displaying various information is applied will be described.

Further, in the present embodiment, the image file recorded by photographing is recorded on a recording medium 26 (see FIG. 2, not shown in FIG. 1) mounted on the digital camera 10 which will be described later (duplicate creation). In this case, a case of dubbing to the external medium 82 of the PC 80 via the cradle 60 will be described.

Next, the configuration of the electric system of the digital camera 10 according to the present embodiment will be described with reference to FIG.

As shown in the figure, the digital camera 10
Is an optical unit 14 including the lens 12 described above, and a CCD (Ch
arge Coupled Device) 16 and an analog / digital converter (hereinafter referred to as “A / D converter”) 18 that converts an input analog image signal into digital image data.
And a DS which has a built-in line buffer of a predetermined capacity and performs predetermined digital signal processing on the input digital image data while controlling the display operation on the LCD 50.
P (Digital Signal Processor) 20 and SDRA mainly for storing digital image data obtained by photographing
M (Synchronous Dynamic Random Access Memory) 22
And a flash memory 24 that stores various programs and parameters in advance, and a CPU (central processing unit) 28 that controls the operation of the entire digital camera 10.
And a compression / expansion unit 29 that performs a compression process on the digital image data in a predetermined compression format and a decompression process on the compressed digital image data.

In the digital camera 10 according to the present embodiment, JPEG (Joint Ph
otographic Experts Group) format, when compressing digital image data of a moving image, Motion JPEG
Each format is applied.

The output end of the CCD 16 is the input end of the A / D converter 18, the output end of the A / D converter 18 is the input end of the DSP 20, and the output end of the DSP 20 is the input end of the LCD 50.
Each is connected. In addition, DSP20, SDRAM2
2, the flash memory 24, the CPU 28, and the compression / expansion unit 29 are mutually connected by a bus BUS.
Therefore, the CPU 28 can arbitrarily access the SDRAM 22 and the flash memory 24, and
The operation of the DSP 20 and the compression / expansion unit 29 can be controlled.

The digital camera 10 according to the present embodiment includes a smart media, an IC card, a CD-R,
A portable recording medium 26 such as a CD-RW is mountable, and the recording medium 26 is electrically connected to the bus BUS while being mounted in the digital camera 10. Therefore, the CPU 28 can also access the recording medium 26 arbitrarily.

Here, the CCD 16 according to the present embodiment
Is the LCD 5 with both horizontal and vertical pixel counts.
0 and more area CCDs than the display portion 84 of the PC 80 are applied. Specifically, the number of pixels of the CCD 16 is 1280 pixels in the horizontal direction and 960 pixels in the vertical direction,
The number of pixels of the LCD 50 and the display unit 84 is 640 pixels in the horizontal direction and 480 pixels in the vertical direction (VGA size). That is, the CCD 16 has twice as many pixels as the LCD 50 and the display section 84 in both the horizontal and vertical directions.

Signals representing the subject image output from the CCD 16 are sequentially input to the A / D converter 18, and the A / D converter 18 inputs R (red), which is input from the CCD 16,
G (green) and B (blue) signals are 12-bit R, G, and
It is converted into a B signal (hereinafter referred to as “digital image data”) and output to the DSP 20.

The DSP 20 accumulates digital image data sequentially input from the A / D converter 18 in a built-in line buffer and temporarily stores the digital image data in the SDRAM 22.

The digital image data stored in the SDRAM 22 is read out by the CPU 28, and white balance adjustment is performed by applying a digital gain corresponding to the light source type to these, and gamma processing and sharpness processing are performed to obtain 8-bit digital image data. Digital image data is generated, and YC signal processing is further performed to generate a luminance signal Y and chroma signals Cr and Cb (hereinafter referred to as "YC signal"),
The YC signal is stored in the SDRAM 22 again.

The LCD 50 is constructed so that it can be used as a finder by displaying a moving image (through image) obtained by continuous image pickup by the CCD 16, and thus the LCD 50 is used as a finder. When using, the generated YC signal is
The data is sequentially output to the LCD 50 via P20. As a result, a through image is displayed on the LCD 50. As described above, the CCD 16 according to the present embodiment has twice the number of pixels in the horizontal direction and the vertical direction as compared with the LCD 50. Therefore, when a through image is displayed on the LCD 50, the horizontal direction is changed from the YC signal. One pixel is thinned out for every two adjacent pixels in both the vertical direction and the vertical direction, and the pixels are sequentially output to the LCD 50.

Here, when the shooting mode is set by the shooting switch 30E and the still image shooting is set, when the release button 30A is fully pressed by the photographer, it is stored in the SDRAM 22 at this point. The YC signal is compressed by the compression / expansion unit 29 in a predetermined compression format (JPEG format in this embodiment), and then recorded as an image file in the recording medium 26.

When the shooting switch 30E is set in the shooting mode and the shooting of a moving image is set, the time when the release button 30A is fully pressed after the time when the release button 30A is fully pressed. Up to, that is, a period during which a moving image is captured, a predetermined period (in the present embodiment, 1/30 second (0.0
33 ... seconds)), the YC signal stored in the SDRAM 22 is compressed by the compression / expansion unit 29 into a predetermined compression format (Motion JPEG format in this embodiment).
After being compressed by, the image is recorded on the recording medium 26 as an image file. Therefore, when shooting a moving image with the digital camera 10 according to the present embodiment, 30 frames /
The moving image of the second can be recorded in the recording medium 26.

At this time, the image file recorded on the recording medium 26 has all the pixels (1280 pixels in the horizontal direction and 280 pixels in the vertical direction in this embodiment) acquired by the CCD 16 in both cases of still images and moving images. (960 pixels in the direction). As a result, when the image recorded as an image file is enlarged or reduced by reducing the number of pixels in both the horizontal and vertical directions of the image, each pixel in the horizontal and vertical directions of the image recorded as the image file. The number of pixels and the number of pixels in the horizontal and vertical directions of the image after enlargement or reduction are set to an enlargement magnification upper limit value C, which will be described later, and the upper limit value at the time of enlargement is obtained. Since it is possible to enlarge or reduce only the pixel-based thinning of the digital image data of the image file without generating new pixel data (data in pixel units) by interpolation processing, etc. Can be enlarged or reduced.

On the other hand, the CPU 28 has various buttons and switches such as the release button 30A, the cross cursor button 30B, the zoom button 30C, the reproduction switch 30D, the photographing switch 30E, the power switch 52, and the touch sensor 30F (see the same figure). , Is collectively referred to as the “operation unit 30”). Therefore, the CPU 28 can always grasp the operation status of these buttons and switches and the grip state of the grip portion by the user.

The CPU 28 has the digital camera 1
A panning detection unit 31 for detecting a physical quantity indicating a panning state of 0 is connected, and the CPU 28 can grasp the physical quantity. The configuration of the panning detector 31 will be described later.

Note that "panning" usually refers to a technique for shooting a moving image while changing the direction of the camera in the horizontal direction in the left / right direction or in the vertical direction in the up / down direction without breaking the camera position. In the digital camera 10 according to the present embodiment, when a still image or a moving image is being reproduced on the LCD 50, the direction of the digital camera 10 is changed in the same manner as when the image is taken, so that the direction of the camera is changed. It is configured so that the reproduced image can be scrolled in the direction of. Therefore, in this specification, a change in the orientation of the digital camera 10 when a still image or a moving image is being reproduced by the LCD 50 is also referred to as “panning”.

On the other hand, the CPU 28 is connected to the input end of the motor drive unit 33, and the output end of the motor drive unit 33 is connected to the focus adjustment motor and the zoom motor provided in the optical unit 14.

The lens 12 included in the optical unit 14 according to the present embodiment has a plurality of lenses and is configured as a zoom lens whose focal length can be changed (variable magnification). Is equipped with. The lens drive mechanism includes a zoom motor and a focus adjustment motor, and the zoom motor and the focus adjustment motor are driven by drive signals supplied from the motor drive unit 33 under the control of the CPU 28.

When changing the optical zoom magnification, the CPU 28 controls the drive of the zoom motor to change the focal length of the lens included in the optical unit 14.

Further, the CPU 28 performs focus control by driving and controlling the focus adjusting motor so that the contrast of the image obtained by the image pickup by the CCD 16 becomes maximum. That is, the digital camera 10 according to the present embodiment employs a so-called TTL (Through The Lens) method in which the position of the lens is set so that the contrast of the read image is maximized as the focusing control. .

On the other hand, the digital camera 10 has a bus BU
A USB controller 32 connected to S is built in, and the USB controller 32 has a USB provided in the cradle 60 in a state where the digital camera 10 is mounted in the cradle 60 and the receptacle 40 and the cradle connector 62 are connected. It manages USB communication with an external device (PC 80 in this embodiment) connected via the connector 70.

Further, in the digital camera 10, a DC / DC converter 36 for supplying direct-current power supply of a predetermined level to each part, and a power supply control part 3 for controlling power supply power.
8 is built in, and the power supply control unit 38 is a DC / D
It is connected to the C converter 36 and the above-mentioned rechargeable battery 34. Further, when the digital camera 10 is mounted on the cradle 60 and the receptacle 40 and the cradle connector 62 are connected, the power supply control unit 38 is connected to the DC jack 68 provided on the cradle 60 and is not shown in the DC jack 68. When the AC adapter is connected, the power supply control unit 38 is supplied with a predetermined level of DC power from the AC adapter.

The power control unit 38 has the digital camera 10 mounted on the cradle 60 and the cradle 60.
When the power switch 52 is in the OFF state while the DC power of the above predetermined level is being supplied from the above, the charging battery 34 is charged by the DC power supplied from the cradle 60, and the power switch 52 is in the ON state. If it is, the charging battery 34 is charged with the DC power supplied from the cradle 60, while the DC power is supplied to the DC / DC converter 36, thereby supplying the power supply power to each unit of the digital camera 10. I do.

In addition, the power supply control section 38 operates when the digital camera 10 is not mounted on the cradle 60 and the DC adapter is connected to the DC terminal 42.
If the power switch 52 is in the off state, the relevant A
The charging battery 34 is charged by the DC power supplied from the C adapter, and when the power switch 52 is in the ON state, the charging battery 34 is charged by the DC power supplied from the AC adapter while Power D
By supplying the power to the C / DC converter 36, power source power is supplied to each unit of the digital camera 10.

Further, the power supply control unit 38 determines that the digital camera 10 is not mounted on the cradle 60, the DC terminal 42 is not connected to the AC adapter, and the power switch 52 is in the ON state. Is a rechargeable battery 3
The relevant parts are controlled so that the power supply power is supplied from 4 to each part.

The digital camera 10 has the cradle 6
In a state in which the receptacle 40 and the cradle connector 62 are connected to the CPU 0, the power switch 64 and the communication LED 66 provided in the cradle 60 are connected to the CPU 28. Therefore, the CPU 28 can recognize the on / off state of the power switch 64 of the cradle 60, and can communicate with the external device connected via the cradle 60 when the communication LED 6
By controlling 6 to light, the cradle 6
It can be clearly indicated that communication is being performed via 0.

Next, the configuration of the panning detector 31 according to the present embodiment will be described in detail with reference to FIG.

As shown in the figure, the panning detector 31
Include a vertical angular velocity sensor 31A and a horizontal angular velocity sensor 31B, which are angular velocity sensors such as a vibration gyro, a high pass filter 31C, an amplifier 31D, an A / D converter 31E, a high pass filter 31F, and an integrator 31G.
And are included. The vertical angular velocity sensor 31A and the horizontal angular velocity sensor 31B are acceleration sensors,
It may be realized by using another speed sensor such as an angular acceleration sensor.

The output terminals of the vertical angular velocity sensor 31A and the horizontal angular velocity sensor 31B are connected to the high-pass filter 31.
CPU through C, amplifier 31D, A / D converter 31E, high-pass filter 31F, and integrator 31G in this order
28 is connected. Further, the CPU 28 has an A / D
The output terminal of the converter 31E is also connected.

The vertical angular velocity sensor 31A and the horizontal angular velocity sensor 31B detect the vertical and horizontal angular velocities of the digital camera 10, respectively, and after the DC component of the angular velocity signal is removed by the high-pass filter 31C, only the vibration component is detected. Is appropriately amplified by the amplifier 31D. Then A / D
The signal is digitally converted by the converter 31E, further band-limited by the high-pass filter 31F, and then converted into an angular displacement signal by the integrator 31G.

Accordingly, the CPU 28 informs the CPU 28 of the vertical angular displacement signal (hereinafter referred to as "vertical angular displacement signal") and the horizontal angular displacement signal (hereinafter referred to as "horizontal angular displacement signal") from the integrator 31G. .) Is entered and A
A vertical angular velocity signal (hereinafter referred to as "vertical angular velocity signal") and a horizontal angular velocity signal (hereinafter referred to as "horizontal angular velocity signal") from the / D converter 31E.
Is entered. Then, the CPU 28 can grasp the implementation status of the panning (presence or absence of the implementation, the direction of the panning, the angle and the speed) based on the angular displacement signal and the angular velocity signal.

By the way, the digital camera 10 according to the present embodiment has the following three functions as functions for dubbing and reproducing an image file recorded in the recording medium 26 by shooting a moving image. Is equipped with. (1) A range designation function of designating an image range in which dubbing and reproduction are performed, out of the images included in the image file. (2) A zooming function for performing zooming (enlargement and reduction) of the image to be dubbed and the image to be reproduced by electronic zoom. (3) A trimming function for enlarging and trimming a partial area of the image to be dubbed and the image to be reproduced by electronic zoom.

Next, the structure of the recording area of the recording medium 26 according to the present embodiment will be described with reference to FIG. As shown in the figure, the recording area of the recording medium 26 is roughly divided into a management area A1 and a data area A2.

In the management area A1, a reserved area 26A which is an area for managing a file and a usage status of each divided area when the area for recording data is divided into divided areas of a predetermined data size are shown. FAT which is the table shown
(File Allocation Table) 26B, FAT 26C having the same contents as FAT 26B, and directory 26
It has areas D and D. Here, two FATs are prepared for safety. Since a technique of managing a recording medium by using a directory and FAT is known, detailed description thereof will be omitted here.

On the other hand, in the data area A2, an edit file recording area 26E, which is an area for recording an edit file containing information on the three functions of the range specifying function, the zooming function, and the trimming function, is provided. ,
Each area has a data recording area 26F which is an area for recording digital image data obtained by photographing as an image file in file units. Here, the edit file is a file that records various kinds of information indicating a processing result of an image edit process described later for the image file recorded in the data recording area 26F by shooting a moving image, and the image edit process is performed. It is created or recorded for each image file of all moving images.

The structure of the edit file according to this embodiment will be described below with reference to FIG. It should be noted that the figure shows the structure of one image file.

As shown in the figure, the edit file according to the present embodiment includes information indicating the file name of an image file to be processed in the image edit process (hereinafter referred to as "edit target file"). , Edit start position information indicating the position in the edit target file of the scene to be started when executing dubbing and playback of the edit target file, and the edit end position indicating the position in the edit target file of the scene to be executed. Edited position information composed of two pieces of position information is recorded.
Here, the above-mentioned editing position information is information regarding the above-mentioned range designation function.

In addition, in the edit file, zoom start position information indicating the position in the edit target file of the scene in which zooming is to be started when performing dubbing and playback of the edit target file and editing of the scene in which zooming execution is to be ended The zoom position information configured by the zoom end position information indicating the position in the target file, the frame information indicating each image (frame) during the zooming period indicated by the zoom position information, and the zoom magnification of the image indicated by the frame information are displayed. The zoom magnification information that is shown and zoom-related information that is composed of trimming information that shows the coordinate position on the image of the trimming when trimming is recorded. Here, the frame information and the zoom magnification information are information on the zooming function described above, and the trimming information is information on the trimming function described above.

Each of the edit position information and the zoom position information is recorded as frame information indicating the corresponding image. Then, in the present embodiment, the frame position information in the edit position information, the zoom position information, and the zoom-related information is assigned in ascending order with the leading image of each image forming the image file of the moving image as a reference. It is represented by an image number (hereinafter, referred to as "frame number").

That is, in the edit file shown in FIG.
'124' is recorded as the edit start position information and '878' is recorded as the edit end position information. In this case, digital image data from the image (scene) of frame number 124 to the image of frame number 878 is recorded. Is to be dubbed and reproduced from the next time.

Further, in the edit file shown in the figure, "234" is recorded as the zoom start position information and "476" is recorded as the zoom end position information. In this case, from the image of frame number 234, This shows that each image up to the image of the frame number 476 is zoomed based on the zoom magnification information and the trimming information recorded as the zoom related information of the edit file.

Here, in the present embodiment, the trimming information is represented by horizontal and vertical coordinates indicating the center position of the image area to be trimmed. Note that in the present embodiment, the horizontal direction pixel number and the vertical direction pixel number are the horizontal direction pixel number and the vertical direction pixel number when the coordinates of the pixel located at the upper left end of the image are the origin (0, 0). It is represented by.

Therefore, in the edit file shown in the figure, for example, for the image of the frame number 234, the position of the horizontal coordinate 854 and the vertical coordinate 374 (vertical from the pixel at the 854th pixel in the horizontal direction from the upper left end of the image) Direction) and the position of the contact point of the line extending in the horizontal direction from the 374th pixel in the vertical direction from the upper left end) to the center to enlarge it 1.1 times to perform dubbing or subsequent reproduction. It is shown that

It should be noted that the terms "enlarged image and dubbing" and "reduced image and dubbing" in this specification mean that digital image data representing the image is reproduced by the same reproducing device such as a liquid crystal display. This means that the image data is processed (resized) so as to be enlarged or reduced and then dubbed.

The LCD 50 corresponds to the display means of the present invention, the vertical angular velocity sensor 31A and the horizontal angular velocity sensor 31B correspond to the detecting means of the present invention, and the CPU 28 corresponds to the moving means of the present invention. Further, the touch sensor 30F corresponds to the grip detection unit of the third aspect described above.

Next, the operation of the digital camera 10 according to this embodiment will be described. First, the image editing process executed by the digital camera 10 will be described with reference to FIG. Note that in FIG. 6, the reproduction switch 3 is selected by the user.
The reproduction mode is set by the operation of 0D, the execution of the image editing process is instructed on the menu screen (not shown) of the digital camera 10, and the digital camera 10 is gripped based on the input signal from the touch sensor 30F. 9 is a flowchart showing a processing flow of an image editing processing program executed by the CPU 28 of the digital camera 10 when it is confirmed that the program is stored in a predetermined area of the flash memory 24 in advance. Further, here, a case will be described in which image files of a plurality of moving images are recorded in the data recording area 26F of the recording medium 26.

At step 200 in the figure, the pressing flag is reset as an initial setting (here, "0" is substituted for the pressing flag) and the horizontal direction of the image indicated by the image file is set to the processing area center coordinate variable. Vertical center coordinates (in this embodiment, the horizontal coordinates are '6
40 ', vertical coordinate is'480'. ) Is substituted. The pressing flag is set (here, "1" is substituted) when the release button 30A is first fully pressed during execution of the main image editing process.
The processing area center coordinate variable indicates the center coordinates of the image area to be trimmed when the trimming function is activated. Therefore, in step 200, the center position of the image indicated by the image file is set as the initial setting of the center coordinates of the image area to be trimmed.

At the next step 202, the enlargement magnification upper limit value C is calculated by the following equation (1).

[0088]

[Equation 1]

Here, HD and VD are the number of pixels in the horizontal direction and the number of pixels in the vertical direction of the digital image data recorded as an image file, and HZ and VZ are the number of pixels in the horizontal direction and the number of pixels in the vertical direction of the digital image data after enlargement. The number of pixels in each direction is shown. Also, min (X, Y) indicates that the smaller value of X and Y (if they are equal, that value) is applied. In this embodiment, the horizontal pixel number HZ and the vertical pixel number VZ are 640 pixels and 480 pixels, which are VGA sizes similar to the LCD 50 and the display unit 84, respectively.

In the digital image data of the image file according to this embodiment, the horizontal pixel number HD and the vertical pixel number VD are 1280 pixels and 960 pixels, respectively, and the horizontal pixel number HZ and the vertical pixel number after expansion are set. 6 VZ each
Since there are 40 pixels and 480 pixels, both HD / HZ and VD / VZ are 2 (= 1280/640 = 960 /
480), and thus the enlargement magnification upper limit value C is '2'. The number of display pixels on the LCD 50 is QVGA (Quarte
(r VGA) size pixels, and so on, when the horizontal pixel number HZ and vertical pixel number VZ of the enlarged digital image data are 320 pixels and 240 pixels, respectively, the upper limit C of enlargement ratio is 4 ( = 1280/320 = 960 /
240).

Here, the horizontal pixel number HD and the vertical pixel number VD of the digital image data recorded as an image file are integers of the horizontal pixel number HZ and the vertical pixel number VZ of the enlarged digital image data, respectively. The present invention is not limited to double, and can be applied to a case where at least one of HD / HZ and VD / VZ includes a numerical value after the decimal point. Further, here, the case where the aspect ratio of the image represented by the digital image data recorded as the image file and the aspect ratio of the image represented by the enlarged digital image data are the same is described. It can be applied to different cases.

In the next step 204, a predetermined edit image selection menu is displayed on the LCD 50, and in the next step 206, the user waits for input of predetermined information. FIG. 7A shows the edited image selection menu displayed on the LCD 50 by the process of step 204. As shown in the figure, in the edit image selection menu according to the present embodiment, a message prompting the designation of the file name of the image file to be edited (file to be edited) is displayed, and data recording on the recording medium 26 is performed. A list of file names of image files of moving images recorded in the area 26F is displayed. The data recording area 26F
The extraction of the file name of only the moving image file from the image file recorded in (1) indicates the moving image as an extension among the file names recorded in the directory 26D of the recording medium 26. Then, Mot
This can be performed by extracting the data with'avi 'indicating ion JPEG.

Such an edited image selection menu is displayed on the LCD.
When displayed at 50, the user indicates that the cross cursor button 3
The file name of the desired image file is designated by the operation of 0B. As a result, the information indicating the file name designated by the user is input to the CPU 28, and the affirmative determination is made in step 206, and the process proceeds to step 208.

In step 208, the above step 206
In the data recording area 26 of the recording medium 26, the image file (editing target file) having the file name input in
The data is read from F and the reproduction (display of a moving image) of the file to be edited on the LCD 50 is started. Here, the reproduction is performed so that the position of the reproduced image indicated by the processing area central coordinate variable matches the central position in the display area of the LCD 50. Also, here, the reproduction is performed with the enlargement ratio of the image being set to 1.

At the next step 210, it is determined whether or not the release button 30A is fully pressed, and if the determination is affirmative, the process proceeds to step 212 and whether or not the pressing flag is reset (this embodiment). Then, it is determined whether or not the value of the press flag is "0", and if the determination is affirmative, the process proceeds to step 214.

At step 214, the LCD 5
The frame number of the image displayed at 0 is recorded in the edit file as the edit start position information, the pressing flag is set in the next step 216, and then the process returns to step 210.

On the other hand, when a negative determination is made in step 212, the process proceeds to step 218, at which point the frame number of the image displayed on the LCD 50 is recorded in the edit file as edit end position information, and the next step After resetting the press flag in 220, step 222
Ends the reproduction of the moving image, and then ends the main image editing processing program.

That is, when the pressing flag is reset at the time of executing step 212, the full pressing operation of the release button 30A detected in step 210 is the first operation during the execution of the main image editing process. At this time, it is considered that the full-press operation of the release button 30A is an operation indicating the editing start position, and the position of the reproduced image at this time is recorded as the editing start position information. On the other hand, when the press flag is set at the time of executing step 212, the full-press operation of the release button 30A detected in step 210 is the second operation during execution of the main image editing process. At this time, it is considered that the full-pressing operation of the release button 30A is an operation indicating the editing end position, the position of the reproduced image at this time is recorded as the editing end position information, and then the reproduction of the moving image is ended. ing.

As described above, in the digital camera 10 according to the present embodiment, the release button 30A that is operated at the start and end of shooting a moving image is used as an operating means for designating the image range for performing dubbing and reproduction. Since it is also used, the image range can be specified by the same operation as when shooting a moving image, and the operability is extremely high.

On the other hand, if a negative determination is made in step 210, the process proceeds to step 224 to determine whether or not the operation of the zoom button 30C has been started, and if a positive determination is made, the process proceeds to step 226 at this time. LCD5
The frame number of the image displayed at 0 is recorded in the edit file as zoom start position information, and the next step 228
Then, the zooming reproduction by the electronic zoom according to the operation of the zoom button 30C by the user is started. That is, in this step 228, when the user presses the tele button of the zoom button 30C, the image being reproduced is reproduced at a predetermined magnification (in the present embodiment, 1.0).
When the wide button of the zoom button 30C is pressed by the user, the image being reproduced is enlarged by a predetermined magnification (0.09 times in the present embodiment). Just make it smaller and display it.

In the next step 230, the LC at this point is
It is determined whether or not the enlargement ratio of the reproduced image at D50 exceeds the enlargement ratio upper limit value C, and in the case of a positive determination, step 2
After shifting to 32 and setting the enlargement ratio of the reproduction screen to the enlargement ratio upper limit value C, the process proceeds to step 240.

On the other hand, if a negative determination is made in step 230, the process proceeds to step 234, it is determined whether or not the enlargement ratio of the reproduced image exceeds 1, and if a positive determination is made, the process proceeds to step 236. After that, the up, down, left, and right arrows are displayed so as to be superimposed on the reproduced image on the LCD 50, and then the process proceeds to step 240. In the case of a negative determination, the process proceeds to step 238, and the arrow displayed at step 236 is not displayed. After the display, the process proceeds to step 240.

By the processing of steps 230 and 232, the magnification of the reproduced image can be limited to a value within the range of the enlargement magnification upper limit value C or less. Therefore, the digital image data of the reproduced image can be generated only by thinning out the pixel unit from the digital image data of the file to be edited stored in the recording medium 26, and the deterioration of the image quality of the reproduced image due to the enlargement and reduction is possible. It never happens. This will be described in detail with reference to FIG. It should be noted that the figure shows a case where the center coordinates of the processing area is set to the center position of the reproduced image.

When the magnifying power of the reproduced image is 1, the image shown in FIG.
As shown in (A), the data area of the digital image data corresponding to the size of the reproduced image when the position indicated by the processing area central coordinate variable is the central position is cut out,
The reproduced image may be resized by the digital image data by thinning out one pixel for every two adjacent pixels in the horizontal direction and the vertical direction with respect to the cut out data. That is, since the number of pixels of the digital image data according to the present embodiment is twice the number of pixels of the LCD 50 in both the horizontal and vertical directions, the LCD 5 covers the entire image area indicated by the digital image data.
Considering the case of displaying in the entire 0 display area, the number of pixels of the digital image data is made equal to the number of display pixels of the LCD 50 by simply thinning out one pixel every two pixels in both the horizontal direction and the vertical direction. can do.

Further, when the enlargement magnification of the reproduced image is less than 1, that is, when the reproduced image is reduced, FIG.
As shown in (B), the data area of the digital image data corresponding to the size of the reproduced image when the position indicated by the processing area central coordinate variable is the central position is cut out,
Pixels may be thinned out in the horizontal direction and the vertical direction from the cut-out data at a ratio according to the enlargement ratio to resize the reproduced image based on the digital image data. Note that the thinning rate at this time is 1 when the enlargement ratio of the reproduced image is 1 (1 for every 2 pixels).
(Thinning out of pixels) (for example, thinning out two pixels every three pixels, thinning out three pixels every four pixels, etc.).

Further, when the magnifying power of the reproduced image is more than 1 and less than or equal to the upper limit C of the magnifying power, as shown in FIG.
The data area of the digital image data corresponding to the size of the reproduced image with the position indicated by the processing area center coordinate variable as the center position is cut out, and the cutout data is magnified in the horizontal and vertical directions. The pixels may be thinned out at a rate according to the above condition to resize the reproduced image based on the digital image data.
Note that the thinning ratio at this time has a smaller value (for example, 1 pixel thinning out of every 3 pixels, 1 pixel thinning out of every 4 pixels, etc.) than when the enlargement ratio of the reproduced image is 1.

As described above, in the digital camera 10 according to the present embodiment, the number of pixels of the CCD 16 in each of the horizontal direction and the vertical direction is set to be larger than that of the enlarged image, so that the horizontal direction of the image recorded by photographing is increased. The number of pixels in each of the vertical and vertical directions is made larger than that of the image after enlargement, and the enlargement ratio of the reproduced image is limited to the enlargement ratio upper limit value C or less, so that the digital image data for the reproduced image is thinned out. The image quality is prevented from being deteriorated as in the case where the data of the pixel which is not obtained optically is generated by the interpolation process or the like.

Further, the above steps 234 to 23
When the magnification of the reproduced image is more than 1 and equal to or less than the upper limit C of the magnification by the processing of 8, the moving image is displayed and the upper end of the display area of the LCD 50 is displayed at the same time as shown in FIG. 7B. An up arrow 90U is displayed near the portion, a down arrow 90D is displayed near the lower end, a left arrow 90L is displayed near the left end, and a right arrow 90R is displayed near the right end, and the magnifying power of the reproduced image is 1 × or less. In these cases, these arrows 90U, 90
D, 90L, 90R are not displayed.

These arrows 90U, 90D, 90L, 9
0R indicates that the center position of the reproduced image displayed on the LCD 50 is scrolled in the direction (panning direction) indicated by the arrow by panning the digital camera 10 in the direction indicated by the arrow. . As described above, in the digital camera 10 according to the present embodiment, when the reproduced image is enlarged by operating the zoom button 30C, the digital camera 10
The reproduced image can be scrolled on the LCD 50 by panning with respect to, and the image reproduced on the LCD 50 at this time can be set as the trimming range.

In step 240, the information indicating the enlargement ratio of the reproduced image at this point is used as the zoom ratio information, and the coordinate values of the horizontal coordinate and the vertical coordinate assigned to the processing area center coordinate variable are used as the trimming information. Each frame is recorded in the edit file together with the frame information. In the next step 242, it is determined whether or not the operation of the zoom button 30C detected in the above step 224 is completed, and in the case of a negative determination, the above step 230 is performed. When the process returns and the determination is affirmative, the process proceeds to step 244.

In step 244, the LCD 5
The frame number of the image reproduced at 0 is recorded in the edit file as zoom end position information, and the next step 24
After the zooming reproduction started in step 228 in step 6, the process returns to step 210.

By the processing of the above steps 224 to 246, while the image file showing the moving image selected by the user is being reproduced on the LCD 50, the information regarding the zooming state at the time of executing the dubbing and the next and subsequent reproductions is displayed. I am recording.

At this time, in the digital camera 10 according to the present embodiment, the zoom button 30C operated at the time of zooming at the time of shooting is also used as the operating means for setting the zooming state at the time of executing dubbing and reproduction. Since the setting is performed, the setting can be performed by the same operation as when shooting, and the operability is extremely high.

On the other hand, if a negative determination is made in step 224, the process proceeds to step 248, it is determined whether or not the enlargement ratio of the reproduced image on the LCD 50 at this point exceeds 1, and in the case of a positive determination. At step 250, at least one of the vertical direction and the horizontal direction based on the vertical angular velocity signal and the vertical angular displacement signal and the horizontal angular velocity signal and the horizontal angular displacement signal input from the panning detection unit 31. It is determined whether or not the panning has been performed for the above, and if the determination is affirmative, step 2
Move to 52.

Whether or not the panning is performed in the vertical direction is determined by, for example, whether or not the angular velocity and the angular displacement indicated by the vertical angular velocity signal and the vertical angular displacement signal are substantially constant for a predetermined time or longer. The determination can be made by making a determination, and the determination as to whether or not the panning is being performed in the horizontal direction is, for example, that the angular velocity and the angular displacement indicated by the horizontal angular velocity signal and the horizontal angular displacement signal are substantially constant for a predetermined time or longer. It can be performed by determining whether or not.

In step 252, the above step 250 is performed.
On the basis of the angular displacement signals and the angular velocity signals used for determining the presence or absence of the panning, the moving direction, the moving amount, and the moving speed by scrolling the display image of the LCD 50 are derived as follows.

The moving direction is set so that the vertical angular velocity indicated by the vertical angular velocity signal has the reference angular velocity when there is no panning in the vertical direction, and allows the vertical shake to the standard value. When the value obtained by adding the predetermined margin value is exceeded, one direction in the vertical direction is defined as the moving direction, and when the value is less than the value obtained by subtracting the predetermined margin value from the reference value, the vertical direction is changed. The other direction is the movement direction.

Similarly, the horizontal angular velocity indicated by the horizontal angular velocity signal uses the angular velocity when there is no panning in the horizontal direction as a reference value, and the reference value has a predetermined margin for allowing horizontal camera shake. When the value exceeds the value obtained by adding the values, one direction in the horizontal direction is defined as the moving direction, and when the value is less than the value obtained by subtracting the predetermined margin value from the reference value, the other direction in the horizontal direction. Is the moving direction.

Incidentally, the moving direction is the same as that of the digital camera 1.
It is determined to be the direction opposite to the panning direction of 0. That is, if the panning direction indicated by the vertical angular velocity signal is the vertical upward direction, the vertical downward direction is the moving direction, and if the panning direction is the vertical downward direction, the vertical upward direction is set. Let the direction be the moving direction. Similarly, when the panning direction indicated by the horizontal angular velocity signal is the horizontal right direction, the horizontal left direction is the moving direction, and when the panning direction is the horizontal left direction, the horizontal direction is the horizontal direction. The right direction is the moving direction.

When the movement direction is the vertical direction, the movement amount is the angular displacement θv (degree) indicated by the vertical direction angular displacement signal and the zoom magnification Z (times) by the electronic zoom at this time. And the number of display pixels Dv in the vertical direction of the LCD 50 (480 pixels in the present embodiment), the horizontal direction angular displacement is calculated by the following equation (2). The angular displacement θh indicated by the signal and the zoom magnification Z by the electronic zoom at this point
And the number of display pixels Dh in the horizontal direction of the LCD 50 (640 pixels in the present embodiment), calculated by the following equation (3).

Vertical movement amount Mv (pixel) = tan θv × Z × (Dv / 2) (2) Horizontal movement amount Mh (pixel) = tan θh × Z × (Dh / 2) (3) Here, the above angle The upper limit of each of the displacements θv and θh is set to 45
Limit it to degrees. Specifically, when the angular displacement exceeds 45 degrees, the angular displacement is set to 45 degrees. As a result, the values of tan θv and tan θh can be set within the range of 0 to 1, and the upper limit of each movement amount Mv and Mh is set to Z × (Dv / 2) and Z × (Dh / 2). Can be restricted.

That is, as shown in FIG.
The amount of movement on the image displayed on is changed not only by the amount of change in the angle of the digital camera 10, but also by the zoom magnification that is a value corresponding to the apparent distance of the display screen. Therefore, in the present embodiment, the movement amount considering the zoom magnification is derived by multiplying tan θ by the zoom magnification Z which is a physical quantity corresponding to the apparent distance.

Further, when the moving direction is the vertical direction, the moving speed is based on the angular velocity ωv indicated by the vertical direction angular velocity signal and the coefficient Kv proportional to the number of display pixels Dv, and the following (4) When the moving direction is the horizontal direction, the coefficient Kh proportional to the angular velocity ωh indicated by the horizontal angular velocity signal and the number of display pixels Dh is calculated by the formula.
It is calculated by the following equation (5) based on

Vertical movement speed Vv (pixels / second) = ωv × Kv (4) Horizontal movement speed Vh (pixels / second) = ωh × Kh (5) In the next step 254, the movement derived in step 252 is moved. In the direction, the display image displayed on the LCD 50 is scrolled by the derived movement speed at the derived movement speed, and in the next step 256, the value of the processing area central coordinate variable is changed to the central coordinate of the scrolled display image. After updating so that, the process returns to step 210.

By the processing of steps 248 to 256, when the reproduced image is enlarged and displayed by the electronic zoom, when the user pans the digital camera 10, a through image when panning is performed at the time of shooting is performed. Since the reproduced image is scrolled in substantially the same state, trimming can be performed as if shooting.

On the other hand, the above steps 248 and 2
If the determination is negative in any of 50, the process returns to step 210 without executing the processes of steps 252 to 256.

With this image editing process, as shown in FIG. 10, while the file to be edited is being played back on the LCD 50, the user performs dubbing and subsequent playback while referring to the image being played back. Release button 3 when the image to start executing is played
By fully pressing 0A, the frame number indicating the image can be recorded in the edit file as the edit start position information, and the release button 30A can be fully pressed again when the image to be executed is reproduced. Thus, the frame number indicating the image can be recorded in the edit file as the edit end position information.

Further, by the main image editing process, while the file to be edited is being reproduced on the LCD 50, the user performs zooming when executing dubbing and subsequent reproduction while referring to the image being reproduced. Zoom button 30 when the image you want to start
By starting the pressing operation of C, the frame number indicating the image can be recorded in the edit file as zoom start position information, and the pressing operation of the zoom button 30C is ended when the image for which zooming is desired to be finished is reproduced. As a result, the frame number indicating the image can be recorded in the edit file as zoom end position information.

Then, for each image reproduced on the LCD 50 during the period when the zoom button 30C is being pressed, frame information indicating the image, zoom magnification information indicating the zoom magnification for the image, and the image. The trimming information indicating the processing area center coordinates with respect to and can be recorded in the edit file as zoom-related information.

Next, the dubbing process executed by the digital camera 10 will be described with reference to FIG. Note that FIG. 11 is executed by the CPU 28 of the digital camera 10 when the digital camera 10 is connected to an external device (here, the PC 80) via the cradle 60 and receives instruction information instructing execution of the dubbing process from the PC 80. 9 is a flowchart showing a flow of processing of a dubbing processing program executed, which is also stored in a predetermined area of the flash memory 24 in advance.

In step 300 of the figure, the file names of all the image files recorded in the data recording area 26F are read from the directory 26D of the recording medium 26, and in the next step 302, the file names of all the read image files are read. The information indicating the name is transmitted to the PC 80 via the cradle 60, and in the next step 304, P
Waiting for reception of predetermined information from C80.

When the PC 80 receives the information indicating the file name from the digital camera 10, the PC 80 displays a dubbing image selection menu having a predetermined layout configuration on the display unit 84 using the received file name information.

FIG. 12 shows a dubbing image selection menu displayed on the display section 84 at this time. As shown in the figure, in the dubbing image selection menu according to the present embodiment, a message prompting the designation of the file name of the image file to be dubbed is displayed, and the image indicated by the information received from the digital camera 10 is displayed. File names of files are displayed in list format.

When such a dubbing image selection menu is displayed on the display section 84, the user designates a file name corresponding to the image file to be dubbed from the displayed file name by using a keyboard, a mouse or the like (not shown). To do. Then, the PC 80 transmits information indicating the file name designated by the user to the digital camera 10 via the cradle 60. As a result, step 30
When 4 is affirmative, the process proceeds to step 306.

In step 306, the edit file corresponding to the image file (hereinafter referred to as "dubbing target file") indicated by the information indicating the file name received from the PC 80 exists in the edit file recording area 26E of the recording medium 26. If it is negative, the process proceeds to step 308 to read the dubbing target file from the data recording area 26F of the recording medium 26,
In the next step 310, the read dubbing target file is transmitted to the PC 80 via the cradle 60, and then the dubbing processing program is terminated. Step 30 above
By the processing of 6 to step 310, when the image file having no edit file is designated by the user as the file to be dubbed, the entire designated image file is transmitted to the PC 80.

When the PC 80 receives the dubbing target file from the digital camera 10, the PC 80 records (dubbs) the image file in a predetermined recording area of the external medium 82 preinstalled in the PC 80.

On the other hand, if an affirmative decision is made in step 306, that is, if there is an edit file corresponding to the file to be dubbed, the flow moves to step 312, and the edit file is recorded in the edit file recording area 26E of the recording medium 26. Read from the next step 31
In step 4, the read edit file is transmitted to the PC 80.

When the PC 80 receives the edit file, it reads all the information included in the edit file, and the image (frame) indicated by the edit start position information included in the read information to the image indicated by the edit end position information. The instruction information for instructing the transmission of the digital image data corresponding to each image up to is transmitted to the digital camera 10 as dubbing instruction information. Further, when the received edit file includes zoom position information and zoom-related information, the PC 80 includes the information in the dubbing instruction information and transmits the information to the digital camera 10.

Then, in the next step 316, the PC 80
Waiting for reception of dubbing instruction information from, and in the next step 318, an image section (image (frame) section from the edit start position to the edit end position in FIG. 10) to be transmitted to the PC 80, which is indicated by the received dubbing instruction information. The digital image data corresponding to the first image in () is read from the dubbing target file.

In the next step 320, the above step 3
The above-mentioned step 318 is added to the dubbing instruction information received in 16.
It is determined whether or not there is zoom-related information regarding the digital image data read in step S3. If the determination is affirmative, the process proceeds to step 322, and the digital image data corresponding to the zoom-related information confirmed to exist in step 320 Is generated based on the digital image data read in step 318, and then the process proceeds to step 326. Less than,
The procedure of generating digital image data in step 322 will be described.

First, the image represented by the digital image data read in step 318 is added to the zoom-related information centered on the position indicated by the trimming information included in the zoom-related information whose existence is confirmed in step 320. When the image is enlarged or reduced by the magnification indicated by the included zoom magnification information, the digital image data of the image area included in the image size after dubbing (VGA size in this embodiment) is read out in step 318. Cut out from the data.

Next, the cut-out digital image data is thinned out (resized) in accordance with the enlargement magnification indicated by the zoom magnification information included in the zoom-related information, whereby the zoom-related information is obtained. Generate digital image data. It should be noted that pixel thinning in the case where the enlargement ratio is 1 may be performed in the same manner as the thinning-out described with reference to FIG. 8A, and when the enlargement ratio is less than 1, that is, the image is reduced. In the case of pixel thinning,
The thinning-out may be performed in the same manner as the thinning-out described with reference to FIG. 8B. Further, the thinning-out of pixels in the case where the enlargement magnification is more than 1 and equal to or less than the enlargement-magnification upper limit value C is described with reference to FIG. It may be performed in the same manner as the described thinning.

On the other hand, when a negative determination is made in step 320, the process proceeds to step 324, and the image shown by the digital image data read in step 318 is the image size after dubbing (in the present embodiment, The digital image data is resized so as to have a VGA size) by performing a thinning process similar to the thinning process shown in FIG. 8A, and then the process proceeds to step 326.

At step 326, the resized digital image data obtained by the above processing is transmitted to the PC 80, and at the next step 328, the above step 31
It is determined whether the processing from 8 to step 326 has been completed for all the images in the image section. If the determination is negative, the process returns to step 318, and the affirmative determination ends the present dubbing processing program.

Incidentally, the above steps 318 to 32.
8 is executed, in step 318,
The digital image data corresponding to the image next to the previously read digital image data in the image section is read.

In the PC 80, the digital image data transmitted from the digital camera 10 by the process of step 326 is sequentially stored in the memory (not shown), and the reception of the digital image data corresponding to all the images in the image section is completed. At this point, the digital image data stored in the memory is collectively recorded as an image file of one moving image in a predetermined area of the external medium 82.

When dubbing an image file to be edited in the image editing process by the dubbing process, the image file obtained by the dubbing should correspond to the editing content in the image editing process. You can

Next, the reproducing process executed by the digital camera 10 will be described with reference to FIG. Note that FIG. 13 shows the digital camera 1 when the reproduction mode is set by the user operating the reproduction switch 30D.
10 is a flowchart showing a processing flow of a reproduction processing program executed by the CPU 28 of 0, which is also stored in a predetermined area of the flash memory 24 in advance. Further, here, a case will be described in which image files of a plurality of moving images are recorded in the data recording area 26F of the recording medium 26.

At step 400 in the figure, the file names of all the image files stored in the data recording area 26F are read from the directory 26D of the recording medium 26, and the file names of all the read image files are used in advance. A reproduction image selection menu having a predetermined layout configuration is displayed on the LCD 50, and in the next step 402, the input of predetermined information from the user is awaited.

FIG. 14 shows a reproduction image selection menu displayed on the LCD 50 by the processing of the above step 400. As shown in the figure, in the reproduction image selection menu according to the present embodiment, a message prompting the designation of the file name of the image file to be reproduced is displayed, and the file names read from the directory 26D are displayed in a list format. Is displayed.

Such a reproduction image selection menu is displayed on the LCD.
When displayed on 50, the user specifies the file name corresponding to the image file to be reproduced from the displayed file name by operating the cross cursor button 30B. As a result, the affirmative determination is made in step 402, and the process proceeds to step 404.

At step 404, it is determined whether or not an edit file corresponding to the image file designated by the user (hereinafter referred to as "playback target file") exists in the edit file recording area 26E of the recording medium 26,
In the case of negative determination, the process proceeds to step 406, the reproduction target file is read from the data recording area 26F of the recording medium 26, and in the next step 408, the read reproduction target file is reproduced normally by the LCD 50 and then the main reproduction processing program. To finish. Step 404-
By the processing of step 408, when an image file having no edit file is designated by the user as a file to be played back, the designated image file is played back on the LCD 50 as usual.

On the other hand, if an affirmative decision is made in the above step 404, that is, if there is an edit file corresponding to the file to be reproduced, the process moves to step 410, and the edit file is stored in the edit file recording area 26E of the recording medium 26. Read from.

In the next step 412, the image section from the image indicated by the edit start position information included in the read edit file to the image indicated by the edit end position information (from the edit start position to the edit end position in FIG. 10). Digital image data corresponding to the first image in the image (frame) section is read from the reproduction target file.

In the next Step 414, the above Step 4 is executed.
It is determined whether or not zoom-related information relating to the digital image data read in step 412 is present in the edit file read in step 10, and if the determination is affirmative, the process proceeds to step 416, and the existence is confirmed in step 414. After the digital image data corresponding to the zoom related information is generated based on the digital image data read in step 412, the process proceeds to step 420. The procedure of generating digital image data in step 416 will be described below.

First, the image represented by the digital image data read in step 412 is added to the zoom-related information centered on the position indicated by the trimming information included in the zoom-related information whose existence is confirmed in step 414. When the image is enlarged or reduced at the magnification indicated by the included zoom magnification information, the digital image data of the image area included in the image size during reproduction (VGA size in this embodiment) is read out in step 412. Cut out from the data.

Next, the cut-out digital image data is thinned out (resized) in accordance with the enlargement magnification indicated by the zoom magnification information included in the zoom-related information, whereby the zoom-related information is obtained. Generate digital image data. It should be noted that pixel thinning in the case where the enlargement ratio is 1 may be performed in the same manner as the thinning-out described with reference to FIG. 8A, and in the case where the enlargement ratio is less than 1, that is, the image is reduced. In the case of pixel thinning,
The thinning-out may be performed in the same manner as the thinning-out described with reference to FIG. 8B. Further, the thinning-out of pixels in the case where the enlargement magnification is more than 1 and equal to or less than the enlargement-magnification upper limit value C is described with reference to FIG. It may be performed in the same manner as the described thinning.

On the other hand, when a negative determination is made in step 414, the process proceeds to step 418, and the image represented by the digital image data read in step 412 is the image size at the time of reproduction (in the present embodiment,
The digital image data is resized so as to have a VGA size) by performing a thinning process similar to the thinning process shown with reference to FIG.
Move to 20.

In step 420, the image based on the resized digital image data obtained by the above processing is displayed on the LCD 50, and in the next step 422, the processing of the above steps 412 to 420 is performed for all the image sections. It is determined whether or not the image processing is completed. If the determination is negative, the process returns to step 412, and when the determination is positive, the reproduction processing program ends.

Incidentally, the above steps 412 to 42
When executing the repetitive processing of step 2, in step 412,
The digital image data corresponding to the image next to the previously read digital image data in the image section is read. In addition, the above steps 412 to 42
When the repetitive processing of step 2 is executed, the cycle of image display in step 420 is set to the moving image shooting speed (30 frames / second in the present embodiment) when the reproduction target file is recorded in the recording medium 26. Set so that the playback speed is the same.

By this reproducing process, when the image file to be edited in the image editing process is reproduced by the LCD 50, the reproduction state can be set according to the editing contents in the image editing process.

As described in detail above, in the digital camera 10 according to the present embodiment, the shake direction with respect to the digital camera 10 is detected while the image is displayed on the LCD 50, and the image displayed on the LCD 50 is detected. Since the display target area is moved by a predetermined amount in the direction opposite to the detected shake direction, the display target area of the image being displayed can be easily moved.

In the digital camera 10 according to the present embodiment, the shake direction with respect to the digital camera 10 is detected when the image shown by the image file is enlarged and displayed by the electronic zoom on the LCD 50. Therefore, the display target area of the image on the LCD 50 is moved by scrolling, and the display target area can be moved with an operational feeling similar to panning at the time of shooting.

Further, in the digital camera 10 according to the present embodiment, the amount of shake with respect to the digital camera 10 in the state where the image is displayed on the LCD 50 (in the present embodiment,
(The angular displacement) is further detected, and the amount of movement of the display image is determined based on the enlargement ratio by the electronic zoom and the shake amount, so that the scroll movement of the display image due to the shake of the digital camera 10 can be displayed more realistically. This can be performed in a state, and the operation feeling when moving the display target area can be further improved.

Further, in the digital camera 10 according to the present embodiment, the shake speed (angular speed in this embodiment) for the digital camera 10 is further detected while the image is displayed on the LCD 50, and is displayed on the LCD 50. Since the display target area of the displayed image is moved at the moving speed corresponding to the shake speed, the display image can be scrolled by the shake of the digital camera 10 in a more realistic display state. It is possible to further improve the operational feeling when moving the target area.

Further, in the digital camera 10 according to the present embodiment, the display image is moved only when the touch sensor 30F detects that the digital camera 10 is gripped. It is possible to prevent the display image from moving according to the shake with respect to the digital camera 10 in the state where the display image is not gripped.

Further, in the digital camera 10 according to this embodiment, since the angular velocity sensor is applied as the detecting means of the present invention, the shake direction, shake amount, and shake speed of the digital camera 10 can be easily detected. Can be easily realized.

Further, in the digital camera 10 according to the present embodiment, while the moving image represented by the image file is displayed on the LCD 50, dubbing of the image file and execution of the displaying of the moving image on the LCD 50 from the next time onward. At the time of electronically zooming the moving image, the position in the image file of the image to be electronically zoomed based on the operation on the zoom button 30C operated when the image to be electronically zoomed is displayed on the LCD 50. Is recorded, and zoom magnification information indicating a zoom magnification for the image is recorded, and while the moving image is displayed on the LCD 50, dubbing of the image file and display of the moving image on the LCD 50 from the next time onward. Of at least one of the Image you want to start the execution is LCD50
The edit start position indicating the position in the image file of the image to be executed, based on the operation on the release button 30A operated when the image is displayed by and the image to be executed is displayed on the LCD 50. Since the information and the edit end position information indicating the position in the image file of the image for which the execution is desired to be ended are recorded, dubbing accompanied by electronic zoom of a partial section in the image file of the moving image can be performed in a short time by a simple operation. At least one of the displays can be performed.

Further, in the digital camera 10 according to the present embodiment, digital image data corresponding to each image from the image indicated by the edit start position information to the image indicated by the edit end position information in the image file is transmitted to the outside. Therefore, at least one of dubbing the image file and displaying the image shown by the image file can be executed externally.

Further, in the digital camera 10 according to the present embodiment, when the dubbing of the image file is executed, the zoom area which is the image data of the area which is enlarged or reduced by the corresponding zoom magnification from the digital image data of the image file. Since the image information is cut out and the cut-out zoom area image information is enlarged or reduced at the zoom magnification, the processing load on the external device when the image file is dubbed by the external device is reduced. be able to.

Equation (2) shown in the present embodiment
Equation (5) is an example, and the panning state (panning angle and panning speed) for the digital camera 10 is shown.
It goes without saying that any formula can be applied as long as it is a mathematical formula that can obtain a value according to Also in this case, the same effect as that of the present embodiment can be obtained.

In the present embodiment, the case where the image file recorded on the recording medium 26 by the digital camera 10 by photographing is dubbed to the external medium 82 mounted on the PC 80 via the cradle 60 has been described. The present invention is not limited to this,
For example, as shown in FIG. 15, the digital camera 10 is directly connected to an external storage device 92 such as a hard disk device, a DVD drive device, a CD-R drive device, and directly dubbed onto a recording medium provided in the external storage device 92. It can also be in the form. Also in this case, the same effect as that of the present embodiment can be obtained.

In the present embodiment, a case has been described in which various editing information such as edit start position information, edit end position information, zoom position information, zoom magnification information, etc. are recorded as an edit file. The present invention is not limited to this, and for example, it may be recorded as a tag in the image file to be edited. In this case, the edit file recording area 26 is recorded on the recording medium 26.
It is not necessary to provide E. Also in this case, the same effect as that of the present embodiment can be obtained.

Further, in the present embodiment, each of the edit start position information, the edit end position information, the zoom start position information, and the zoom end position information is recorded as the frame number of the image at the corresponding position in the image file. Although the case has been described, the present invention is not limited to this. For example, the image file may be recorded as an elapsed time from the start of reproduction when the image is reproduced from the first image. Also in this case, the same effect as that of the present embodiment can be obtained.

Further, although the case where the digital camera 10 and the external device are connected by USB has been described in the present embodiment, the present invention is not limited to this.
Wired communication other than USB (for example, IEEE (Institute)
of Electrical and Electronics Engineers) 1394
Etc.), wireless communication (for example, Bluetooth, IrDA (Infrared Data Ass
(ociation) etc.). Also in this case, the same effect as that of the present embodiment can be obtained.

Further, although the case where the electronic zoom process is performed on the moving image has been described in the present embodiment, the present invention is not limited to this, and the electronic zoom process is performed on the still image. It goes without saying that you can In this case, instead of the image editing processing according to the present embodiment, the zoom magnification is set and set by operating the zoom button 30C in a state where the still image indicated by the image file to be processed is displayed on the LCD 50. An image editing process of recording zoom magnification information indicating the zoom magnification in an edit file is applied. Also in this case,
It is possible to perform at least one of duplication and display of an image file of a still image with electronic zoom in a short time with a simple operation.

Further, although the case where the enlargement magnification upper limit value C represented by the formula (1) is applied as the enlargement magnification upper limit value of the present invention has been described in the present embodiment, the present invention is not limited to this. If there is no significant effect on the image quality of the image after the electronic zoom processing due to the reason that the number of pixels of the image after the electronic zoom processing is relatively large, etc. The upper limit value may be a value slightly larger than the enlargement magnification upper limit value C (for example, a value obtained by increasing the enlargement magnification upper limit value C by 25%). In this case, the allowable enlargement ratio of the electronic zoom is increased, and the degree of freedom of enlargement by the electronic zoom can be increased.

Further, in the present embodiment, in the image editing process (see FIG. 6), editing position information, zoom position information,
Although a case has been described where each piece of information on the zoom information and the zoom-related information is directly recorded on the recording medium 26 when the user operates various buttons, the present invention is not limited to this. For example, the user operates various buttons. Sometimes
It is also possible to temporarily store each of these pieces of information in the SDRAM 22 or the flash memory 24 and record the information in the recording medium 26 in response to a recording instruction input to the recording medium 26 by the user. Also in this case, the same effect as that of the present embodiment can be obtained.

In the present embodiment, a case will be described in which an operation for inputting various information to be recorded in an edit file is performed in a state where a moving image to be processed in the image editing process is reproduced at an actual reproduction speed. However, the present invention is not limited to this, and, for example, the operation may be performed in a state in which the frame-by-frame reproduction or frame-reverse reproduction of the moving image to be processed is performed. In this case, it is possible to specify a desired image position with higher accuracy than in the present embodiment.

In the present embodiment, the update of the edit file is not mentioned, but it goes without saying that the update can be performed. That is, this is a case where an image file in which an edit file already exists is to be processed again in the image edit process. In this case, the edit position information and the zoom position input according to the operation by the user in the image edit process are performed. Each of the position information and the zoom-related information is overwritten in the corresponding recording area of the already created edit file. Therefore, in this case, the latest editing information is preferentially applied when the dubbing process (see FIG. 11) or the reproduction process (see FIG. 13) is executed.

Further, the processing flow of each processing program described in the present embodiment (see FIGS. 6, 11, and 13) is an example, and can be appropriately changed within the scope not departing from the gist of the present invention. Needless to say.

[0182]

According to the image display device of the first aspect of the present invention, the shake direction with respect to the image display device is detected while the image is displayed on the display device, and the display target of the image displayed on the display device is detected. Since the area is moved by a predetermined amount in the direction opposite to the detected shake direction, the display target area of the image being displayed can be easily moved.

According to the image display device of the second aspect, the same effect as that of the first aspect of the invention can be obtained, and the image indicated by the image information is enlarged and displayed by the electronic zoom on the display means. Since the shake direction of the present invention is detected in the case of performing the above, it is possible to move the display target area with an operation feeling similar to panning at the time of shooting.

Further, according to the image display device of the third aspect, it is possible to obtain the same effect as that of the invention of the second aspect, and the image display device can be used while the image is displayed on the display means. Since the shake amount is further detected and the predetermined amount of the present invention is determined based on the enlargement ratio by the electronic zoom and the shake amount, the scroll movement of the display image due to the shake of the image display device can be displayed in a more realistic display state. It is possible to improve the feeling of operation when moving the display target area.

[Brief description of drawings]

FIG. 1A is a digital camera 10 according to an embodiment.
2B is an external view showing the external appearance of the digital camera 1. FIG.
It is a schematic diagram which shows the state when 0 is connected with the external device using the cradle 60.

FIG. 2 is a block diagram showing a configuration of an electric system of the digital camera 10 and a cradle 60 according to the embodiment, and also showing an electrical connection state when the digital camera 10 is mounted on the cradle 60.

FIG. 3 is a block diagram showing a configuration of a panning detection unit 31 according to the embodiment.

FIG. 4 is a schematic diagram showing a configuration of a recording area of the recording medium 26 according to the embodiment.

FIG. 5 is a schematic diagram showing the structure of an edit file according to the embodiment.

FIG. 6 is a flowchart showing a processing flow of an image editing processing program according to an embodiment.

7A is a schematic diagram showing a display state of an edited image selection menu according to the embodiment, and FIG. 7B is a schematic diagram showing a display state of an arrow according to the embodiment.

FIG. 8 is an explanatory diagram for explaining the reason why image quality deterioration does not occur in the digital camera 10 according to the embodiment.

FIG. 9 is a schematic diagram for explaining a vertical movement amount Mv and a horizontal movement amount Mh according to the embodiment.

FIG. 10 is an explanatory diagram for explaining an edit file according to the embodiment.

FIG. 11 is a flowchart showing a processing flow of a dubbing processing program according to the embodiment.

FIG. 12 is a schematic diagram showing a display state of a dubbing image selection menu according to the embodiment.

FIG. 13 is a flowchart showing a processing flow of a reproduction processing program according to the embodiment.

FIG. 14 is a schematic diagram showing a display state of a reproduction image selection menu according to the embodiment.

FIG. 15 is a block diagram showing another embodiment.

[Explanation of symbols]

10 digital camera 16 CCD 26 recording media 28 CPU (transportation means) 30A release button 30B Cross cursor button 30C zoom button 30D playback switch 30E shooting switch 31A Vertical angular velocity sensor (detection means) 31B Horizontal angular velocity sensor (detection means) 32 USB controller 50 Liquid crystal display (display means) 80 personal computer 82 External media

Claims (3)

[Claims] 1. An image display device comprising display means for displaying an image indicated by image information, wherein the detecting means detects a shake direction with respect to the image display device while the image is displayed on the display means. An image display device including: a moving unit that moves a display target region of the image displayed on the display unit in a direction opposite to the shake direction detected by the detection unit by a predetermined amount. 2. The image display device according to claim 1, wherein the detection means detects the shake direction when the display means is performing an enlarged display of the image by electronic zooming. 3. The detecting means further detects a shake amount with respect to the image display device in a state where the image is displayed on the display means, and the moving means sets the predetermined amount to an enlargement magnification by the electronic zoom. The image display device according to claim 2, wherein the determination is made based on the shake amount.