JPH11175544A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need of adding key information and to extract a target image even if there are many pieces of image data by sequentially displaying only images of a specific image file which is selected based on tag information with a displaying means. SOLUTION: This device discriminates whether an image in a high-speed browsing mode is an image D2 or an image D5. In the case of the image D2, a counter k which designates the image file number of image data to be read is set to 1, and in the case of the image D5, the number kc which is the next number to the image file number of image data shown on the image D5 is set to k. A tag Tk of No.k image file is read. In the case of k = 1, image data of No.1 image file is shown. If not, it is discriminated whether or not the photographed date Data (Te) of image data of the No.k image file is equal to the photographed date Data (Tk-1 ) of the image data of a -1 image file, and when it is not equal, the No.k image data is shown.

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 for displaying image data recorded on an image recording medium.

[0002]

2. Description of the Related Art In an image display apparatus, as a method of extracting a target image file from an image recording medium on which a plurality of image files are recorded, there is a method by inputting key information. In this method, it is necessary that key information (code information) is associated with each image file.

[0003] In addition to extraction from key information,
A target image can be extracted using the browsing function. Note that the browsing function refers to a function of displaying images one by one on a display screen. That is, by stopping browsing or not continuing browsing when the target image is displayed, the target image file can be extracted by visual judgment of the operator.

[0004]

However, in the method of extracting a target image file by inputting the key information, it is necessary to systematize the key information and assign the key information. The work has a great effort. In particular, it is necessary to add (input) key information to image data photographed by a digital camera at the time of photographing. This work is generally troublesome, and if the focus is on giving key information, a shutter chance is missed.

On the other hand, in the method of extracting a target image using the browsing function, the target image can be practically and reliably extracted if the target image is extracted from tens of image data. . However, if the number of target image data increases, browsing takes a very long time and is not practical. Especially for digital cameras, D
Due to the fact that PE (phenomenon, printing, stretching) is not required, many shots are often taken as compared to silver halide cameras. Therefore, the number of image data tends to increase.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides an image display device which does not have to add key information and can extract a target image in a short time even if the number of image data is large. The purpose is to do.

[0007]

According to one aspect of the present invention, there is provided an image recording medium comprising: a plurality of image recording media storing a plurality of image files storing image data and tag information; Wherein the display means has a first display mode for sequentially displaying only image data of a specific image file selected based on tag information. .

In the above configuration, since only the selected image files are sequentially displayed in the first display mode, image browsing can be performed in a shorter time than when all image files are displayed. it can. In addition, since the image file to be displayed is selected based on the tag information, it is possible to control to display only the image more necessary for the observer, unlike the case where the number of display images is simply reduced.

According to a second aspect of the present invention, in the image display device of the first aspect, the display means further includes a second display mode for sequentially displaying image data of all image files on the image recording medium. A jog shuttle for designating a display mode according to the rotation angle, wherein the rotation angle of the jog shuttle for designating the first display mode is larger than the rotation angle for designating the second display mode.

The jog shuttle itself is rotated. In the case of the above configuration, control according to which rotation angle is held is performed by the image display device. In the above configuration, the display mode can be switched using the jog shuttle. According to the jog shuttle, the display mode corresponding to the rotation angle held by the hand will be displayed on the screen,
The user can learn the operation of specifying the display mode with the sense of the hand without having to learn the key operation and the like, and the operation is simple. Since the rotation angle for specifying the first display mode is larger than the rotation angle for specifying the second display mode, the browsing speed corresponds to the rotation angle such that the larger the rotation angle, the faster the browsing. Can easily learn the browsing operation.

According to a third aspect of the present invention, in the image display apparatus according to the second aspect, the display means displays only image data of a specific image file less than the first display mode selected based on the tag information. It has a third display mode for sequentially displaying, and the rotation angle for designating the third display mode of the jog shuttle is larger than the rotation angle for designating the first display mode.

In the above configuration, browsing in the third display mode is faster than browsing in the first display mode. 3. The image display according to claim 2, wherein in the jog shuttle, the rotation angle for designating the third display mode is larger than the rotation angle for designating the first display mode, and the browsing speed corresponds to the rotation angle. The same operation as the device can be obtained.

According to a fourth aspect of the present invention, in the image display device of the first aspect, the display means further includes a second display mode for sequentially displaying image data of all image files on the image recording medium. And a fast-forward key for performing an operation of transitioning to the second display mode and a fast-forward key for performing an operation of transitioning to the first display mode.

In the above configuration, when the forward key is operated, browsing is performed in the second display mode, and when the fast forward key is operated, higher speed browsing is performed in the first display mode.

[0015] The invention according to claim 5 provides the invention according to claims 1 to 4.
Wherein the image data stored in the plurality of image files is image data shot by a digital camera, and the tag information includes a plurality of data such as a shooting date and a shooting time. The selection criteria for a specific image file in the first or third display mode can be selected.

In the above configuration, since the selection criterion of the specific image file in the first or third display mode can be selected, high-speed browsing can be performed by a method more effective for the operator. . Therefore,
The target image can be extracted in a shorter time.

The invention according to claim 6 is the invention according to claims 1 to 4
In the image display device according to any one of the first to third aspects, the image data stored in the plurality of image files is image data captured by a digital camera, and in the first display mode, the date of each capturing date is determined based on the tag information. An image file with the earliest shooting time is selected.

In the above configuration, in the first display mode, only the image data that is first shot on each shooting day is displayed. Therefore, the operator switches the display mode from the first display mode to the second display mode and extracts the target image when the image data shot on the same shooting day as the target image is displayed. Can be. In this case, extraction can be performed in a shorter time than when all images are displayed and a target image is extracted from the images.

The invention according to claim 7 is the invention according to claims 1 to 4
In the image display device according to any one of the first to third aspects, the image data stored in the plurality of image files is image data captured by a digital camera, and is captured in a first display mode based on the tag information. An image file having a shooting interval longer than a predetermined time with the selected image file is selected.

In the above configuration, when there are a lot of continuously shot image data, all of them are not displayed,
It is possible to browse images in a short time.

[0021]

FIG. 1 is a block diagram showing an image display system including an image display device according to a first embodiment of the present invention. The main body 1 of the image display device includes:
A memory card slot 9 for mounting a memory card 8 on which an image captured by a digital camera is recorded, and a USB port 10 for connecting a printer 11 or a personal computer (PC) 15 are provided.

Further, a magneto-optical disk interface 12 is provided, through which the magneto-optical disk 1 is connected.
4 is directly connectable to the image display apparatus main body 1. Memory card 8
And the image recorded on the magneto-optical disk 14
By operating various switches of the operation unit 7, the display is displayed on the display unit 6 made of liquid crystal. An operation menu for performing various operations is also displayed on the display unit 6.

The control of the image display apparatus main body 1 is as follows. The CPU in the data processing unit 4 reads a program stored in the ROM 2 and, based on this program, a memory card slot 9, a USB port 10, a magneto-optical interface 12, a graphic This is performed by controlling the controller and the VRAM 5.

The data processing unit 4 has a real-time clock (RTC) driven by a backup battery 17.
16 is connected, the date and time at which the data was processed can be recorded on the magneto-optical disk 14 or the memory card 8. The result of the transfer to the magneto-optical disk 14 is recorded in the flash memory 19.

The image display apparatus main body 1 is supplied with electric power by a battery of a power supply section 18 and also can be supplied with electric power by an AC adapter (not shown). FIG. 2 is an external view of the image display system shown in FIG.

Next, the data arrangement in the memory card 8 will be described. FIG. 3 schematically shows a data array in the memory card 8. The memory card 8 records an image composed of 40 frames photographed by a digital camera. Each frame includes a tag 81 and high-resolution image data (640 × 480) compressed in the JPEG format.
(Pixels) 82 and low-resolution image data (80 × 60 pixels) 83 for thumbnail display.

Each frame can be handled as, for example, an image file in EXIF format. The tag 81 stores shooting date data, shooting time data, flash on / off data during shooting, and the like.

Next, the data arrangement in the magneto-optical disk 14 will be described. Image data of the memory card 8 can be transferred and recorded on the magneto-optical disk 14.
FIG. 4 schematically shows a data array in the magneto-optical disk 14. In the image file, No. 1,
No. 2, No. 3,... No. n,. Each file records high-resolution image data 142, low-resolution image data 143 for displaying thumbnails, and tag information 141, similarly to the memory card 8.

Further, there is a file management unit 144 for managing each image file, in which a table for associating the entire directory structure, file numbers, file names, and directories is recorded.

Next, the image display control of the apparatus 1 will be described. Note that, specifically, control for displaying images one by one (browsing) will be described. FIG. 5 is a front view of the image display device 1 on which the magneto-optical disk drive 13 is mounted. Power button 71, arrow keys 791, 792,
793, 794, Menu key 771, Enter key 7
72, high-speed reverse key 72, reverse key 73, stop key 7
4. Forward key 75, fast forward key 76, jog shuttle 7
8 constitutes the operation unit 7 of the main body 1.

When the magneto-optical disk drive 13 is mounted on the main body 1 and the power button 71 of the main body 1 is pressed and turned on, the program in the main body ROM 2 connected to the data processing section 4 is read. After performing initialization processing of the RAM 3 and the like according to the processing procedure in the program, the operation unit 7,
The memory card slot 9, USB port 10, and magneto-optical disk interface 12 can be used.

After that, the graphic controller and the VRAM 5 under the control of the data processing unit 6 are controlled, and the initial screen D1 is displayed on the display unit 6. FIG. 6 is a flowchart showing the transition of the operation screen. On screen D1,
By pressing the arrow keys 791 and 793, the options can be changed in order. When performing search by browsing, the operator selects “1. image display” from the options on the screen D1. When the enter key 772 is pressed in this state, a media selection screen D2 is displayed.

Here, the installed one of the magneto-optical disk 14 and the memory card 8 is selected. Devices that are not mounted may not be selectable, or the display method may be changed. For example, a method of displaying in a light color can be considered. Further, in the present embodiment, when both are mounted, the magneto-optical disk is selected, but this may be changed to a memory card. The operator uses the arrow keys 791,
By pressing 793, the options can be changed. Here, it is assumed that the initially selected “11. magneto-optical disk” is left as it is.

When the feed key 75 is pressed in this state, the browsing mode is set, and high-resolution image data is displayed for each frame (one image data) in the order of the photographing date from among the files on the magneto-optical disk 14 (screen D4). ). When the stop key 74 is pressed in the browsing mode, the image that was displayed when the key 74 was pressed remains in the displayed state. In this way, a target image can be extracted by visual judgment of the operator.

On the other hand, when the fast-forward key 76 is pressed on the screen D2, only files having the earliest shooting time in a series of files of the same shooting date from among the files on the magneto-optical disk 14 are arranged frame by frame in the order of shooting date. The high-speed browsing mode to be displayed is set (screen D3). In fast browsing mode,
Since the number of image data to be displayed is reduced, browsing can be performed in a shorter time than in the browsing mode.

Although it is assumed that the image data to be displayed is high-resolution image data, the image data may be low-resolution image data for displaying a thumbnail. In this case, the time required for reading data is further reduced, and browsing can be performed at higher speed.

The thumbnail data size is 80 × 60.
(Pixels) and the display area is 640 × 480 (pixels). Therefore, when displaying image data for thumbnails, it is possible to enhance the visibility by interpolating and enlarging the thumbnail images. desirable.

When the stop key 74 is pressed in the high-speed browsing mode, the image displayed when the key 74 is pressed remains displayed (screen D5). In this way, a target image can be extracted by visual judgment of the operator. When the menu key 771 is pressed on the screen D5, the screen transits to the screen D1. Pressing the forward key 75 on the screen D5 switches to the browsing mode, and pressing the fast-forward key 76 switches to the high-speed browsing mode.

In the high-speed browsing mode, by default, only files having the earliest shooting time in a series of files on the same shooting date are displayed for each frame in order of shooting date. Can be changed. Hereinafter, the change control of the high-speed browsing option will be described.

When the operator wants to change the high-speed browsing option, the operator operates the arrow keys 791 and 793 on the screen D1 to select "4. Others" to change the display screen to the screen D6. Then, the enter key 772 is pressed. When the enter key 772 is pressed, a screen D7 is displayed. On the screen D7 and a screen D8 described later, the operator selects the high-speed browsing option. First, on the screen D7, use the arrow keys 79
By operating 1, 793, data used to determine a display image to be displayed in the high-speed browsing mode is selected.

The default is "1. shooting date and time". How the display image is determined using the data selected on the screen D7 is defined on the screen D8. Screen D
When the enter key 772 is pressed in a state where “1. shooting date and time” is selected in step 7, a screen D8 is displayed. here,
Select either "display only the first image on the same shooting date" or "display only images with a shooting interval of 5 seconds or more".

By default, “display only the first image on the same shooting date” is selected. Table 1 shows an example of the file number of the image file in the magneto-optical medium 14, the photographing date, the photographing time, and the presence / absence of display in the high-speed browsing mode when the same high-speed browsing option as the default state is selected. In this case, only the image data of the image files of the image file numbers 156, 160, and 161 are displayed.

[0043]

[Table 1]

Next, the processing flow of the high-speed browsing mode executed on the screen D3 when the high-speed browsing option is the same as the default state (only the first image of the same shooting day is displayed) will be described. In FIG.
4 illustrates a processing flow. This flow starts from the screen before moving to the screen D3.

The transition to the screen D3 is made from the screen D2 or the screen D5. In S10, it is determined whether the (current) screen on which the operation to enter the high-speed browsing mode is performed is the screen D2 or the screen D5. In the case of the screen D2, a counter k for designating the image file number of the image data to be read in S20
Is set to 1. If the screen D5, the screen D in S30
5 sets the next number k _c of the image file number k of the image data displayed in. Then, in step S40, the tag Tk of the image file No. _k is read.

In S50, it is determined whether or not k = 1, and k =
In the case of 1, the image data of the image file of No. 1 is displayed in S60. If k is not 1, the shooting date Date (T _k ) of the image data of the image file of No. k is No. k−1 in S70.
Date of image data of the image data of the image file Date
It is determined whether it is equal to (T _k-1 ). If not equal, the image data of No. k is displayed in S60. If they are equal, the process proceeds to S80 without reading and displaying the image data.
Proceed to. When the image data is displayed in S60,
Proceed to.

In S80, it is determined whether there is an image file of No. k + 1. If not, there is no display data, so the process proceeds to S180 to end the high-speed browsing mode. If there is, there is display data, so go to S90, where k is k
+1 is set and the processing of S40 to S80 is repeated.

Next, the processing in the high-speed browsing mode when "display only images whose photographing interval is 5 seconds or more" is selected in the high-speed browsing option will be described. First, Table 2 shows an example of an image file number, a photographing date, a photographing time, and presence / absence of display in the case of this option.
In this case, the image file numbers 156, 157, 16
Only the images of 0, 161, and 162 are displayed.

[0049]

[Table 2]

The control in this option will be described with reference to a processing flow shown in FIG. This flow starts from the screen before moving to the screen D3. In FIG. 8, FIG.
Steps that perform the same processing as the processing flow shown in (1) are assigned the same step numbers. FIG.
The only difference is that S190 is performed instead of 0.

At S190, the difference between the shooting time Time (T _k ) of the image data of the image file No. _k and the shooting time Time (T _{k -1} ) of the image data of the image file No. _k-1 is 5 seconds. If it is less than 5 seconds (if it is 5 seconds or more), the image data of No. k is displayed in S60. On the other hand, if it is less than 5 seconds, the process proceeds to S80 without displaying the image of No. k. The other steps are the same as the steps in FIG. 8 and will not be described. Note that 5 seconds of “display only images whose shooting interval is 5 seconds or more” selected on the screen D8 can be arbitrarily changed.

<Second Embodiment> The basic configuration and control contents of the image display apparatus of the present embodiment are the same as those of the first embodiment, except that the image display apparatus has an ultra-high-speed browsing mode in addition to the high-speed browsing mode. different. An instruction to switch to each browsing mode can be given by using the jog shuttle 78 or the jog shuttle 78 and the keys of the operation unit 7. FIG. 9 shows a detailed front view of the jog shuttle 78.

The jog shuttle 78 has an external rotating wheel 781
And an internal rotating section 782. The external rotating wheel 781 is
It has the same function as the next key according to the rotation angle. +10 ゜ to +30 ゜: Forward key 75 +50 ゜ to +70 ゜: Fast forward key 76 -10 ゜ to -30 ゜: Reverse key 73 -50 ゜ to -70 ゜: High speed reverse key 72

Also, + 90 ° to + 110 °, -90 ° to
Rotation to -110 ° is also possible. The external rotating wheel 781 is biased by a spring, and is set to 0 unless the rotating state is held by a finger.
位置

The internal rotating portion 782 has a recess 783 for putting a finger, and has a click stop and a contact every 30 °. When the image is displayed on the screen D5, if the internal rotation unit 782 is rotated by one unit in the + direction, the image of the next frame (image file number) is displayed. When the image is rotated by one unit in the negative direction, the image of the previous frame (image file number) is displayed.

In the present embodiment, when the jog shuttle 78 is used when shifting from the screen D2 (see FIG. 6) to each browsing mode, the flow shown in FIG. 10 is performed.
When the key of the operation unit 7 is used, the same processing as in the first embodiment is performed. That is, the screen changes as shown in FIG. When the jog shuttle 78 is operated, it is determined in S100 of FIG. 8 how many rotation angles of the external rotary wheel 78 are.

When the rotation angle is between + 10 ° and + 30 °, the browsing mode is set and continuous display is performed in S110 (display equivalent to screen D4 in FIG. 6). When the rotation angle is between + 50 ° and + 70 °, the high speed browsing mode is set, and
At 120, only the high-resolution image data of the image file on the magneto-optical disk 14 having the earliest shooting time on the same shooting day is displayed for each frame in the order of the shooting date (the same processing as the processing flow of FIG. 7 is performed).

When the rotation angle is between + 90 ° and + 110 °,
An ultra-high speed browsing mode is set, and an image is displayed in S130. The procedure of the process in S130 is S1.
20 is different from that of FIG. 20 in that, when displaying an image in S60 of FIG. 7, thumbnail image data is read from an image file, subjected to an interpolation process in accordance with the screen of the display unit 6, and then displayed. . In this case, since the thumbnail image data is displayed, the time required for reading the file can be significantly reduced, and the browsing can be performed at a higher speed.

The rotation angle is -10 ° to -30 °, -50 ° to
For -70 °, -90 ° to -110 °, S
Go to 140, S150, S160. S140, S15
0 and S160, the corresponding S110, S1
20, reverse display of S130 is performed. As a specific process, in the case of S150, the increment process shown in S90 of the process flow of FIG. 7 is changed to the decrement process, and the same process as in FIG. 7 is performed. Note that the rotation angle is -10 ° to -1.
If it does not correspond to 10 ° or + 10 ° to + 110 °,
Proceed to S170 to keep the display image as it is without changing it.

<Third Embodiment> In the second embodiment,
Image display in the ultra-high speed browsing mode was performed by reading and displaying thumbnail images.
Depending on the image file format, there may be no thumbnail image corresponding to the image data. In this embodiment, in such a case, the ultra-high-speed browsing mode is set by displaying a part of the high-resolution image data such as a head portion, a center portion, and a rear end portion. The configuration of the image display device, other processing contents, and the like are the same as those in the second embodiment, and thus description thereof is omitted.

The display of the head, center, and rear end of the image data means the top, center, and
This means that only the lower part is displayed based on the image data. Note that, instead of displaying a part of the image data, the image data may be thinned out and displayed, so that the ultra-high speed browsing mode may be set. According to such a display method, the number of data to be read is smaller than when all images are displayed, and high-speed display is achieved.

<Fourth Embodiment> In this embodiment, FIG.
In the high-speed browsing mode, only the images with the photographing interval of 5 seconds or more are displayed, and the super-high speed In the browsing mode, only the first image on the same shooting date is displayed.

In this case, S120 of the processing flow of FIG.
Performs the processing shown in FIG. 8 in the high-speed browsing mode.
In S130, the processing shown in FIG. 7 in the high-speed browsing mode is performed. The configuration of the image display device, other processing contents, and the like are the same as those in the second embodiment, and thus description thereof is omitted.

Each of the second to fourth embodiments is an image display apparatus having three types of browsing modes: a browsing mode, a high-speed browsing mode, and an ultra-high-speed browsing mode. Are not limited to the above. For example, in the high-speed browsing mode, a selection criterion for displaying the image data of the first image file every month in the ultra-high-speed browsing mode may be provided. Further, a configuration may be adopted in which the operator can select from several selection criteria.

[0065]

According to the image display apparatus of the present invention, a target image file can be extracted accurately in a short time. In addition, since key information does not need to be added, when photographing is performed with a digital camera, the time and effort of key information addition can be saved.

[Brief description of the drawings]

FIG. 1 is a block diagram of an image display system including an image display device according to a first embodiment.

FIG. 2 is an external view of the image display system of FIG.

FIG. 3 is a schematic diagram of a data array in a memory card.

FIG. 4 is a schematic diagram of a data array in a magneto-optical disk.

FIG. 5 is a front view of the image display device.

FIG. 6 is a flowchart showing a state of an operation screen transition.

FIG. 7 is a diagram showing an example of a processing flow in a high-speed browsing mode.

FIG. 8 is a diagram showing another example of the processing flow in the high-speed browsing mode.

FIG. 9 is a detailed front view of the jog shuttle.

FIG. 10 is a diagram showing a processing flow when a jog shuttle is operated in the second embodiment.

[Explanation of symbols]

 Reference Signs List 1 image display device 2 ROM 3 RAM 4 data processing unit 5 graphic controller 6 display unit 7 operation unit 8 memory card 9 memory card slot 10 USB port 11 printer 12 magneto-optical disk drive interface 13 magneto-optical disk drive 14 magneto-optical disk 15 PC 16 RTC 17 Backup battery 18 Power supply 19 Flash memory 78 Jog shuttle

Claims (7)

[Claims] 1. An image display apparatus comprising: display means for sequentially displaying a plurality of image data on an image recording medium on which a plurality of image files storing image data and tag information are recorded, wherein the display means comprises: An image display device having a first display mode for sequentially displaying only image data of a specific image file selected based on tag information. 2. The image processing apparatus according to claim 1, further comprising: a display unit configured to sequentially display image data of all image files on the image recording medium.
A jog shuttle for designating a display mode according to a rotation angle, wherein a rotation angle of the jog shuttle for designating a first display mode is larger than a rotation angle for designating a second display mode. The image display device according to claim 1, wherein: 3. The display means has a third display mode for sequentially displaying only image data of a specific image file less than the first display mode selected based on tag information, and 3. The image display device according to claim 2, wherein the rotation angle for specifying the display mode is larger than the rotation angle for specifying the first display mode. 4. The image processing apparatus according to claim 1, wherein the display unit further displays image data of all image files on the image recording medium sequentially.
2. The image according to claim 1, further comprising: a feed key for performing an operation of shifting to a second display mode, and a fast-forward key for performing an operation of shifting to a first display mode. Display device. 5. The image data stored in the plurality of image files is image data photographed by a digital camera. The tag information includes a plurality of data such as a photographing date and a photographing time. 2. A criterion for selecting a specific image file in the first or third display mode is selectable.
5. The image display device according to any one of claims 1 to 4. 6. The image data stored in the plurality of image files is image data photographed by a digital camera, and the earliest photographing time of each photographing day based on the tag information in the first display mode. The image display device according to claim 1, wherein an image file is selected. 7. The image data stored in the plurality of image files is image data photographed by a digital camera, and the image data stored in the first display mode is the same as the image data photographed last time based on the tag information. 5. The image display device according to claim 1, wherein an image file whose shooting interval is longer than a predetermined time is selected.