JPH10340075A - Image display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance convenience by displaying the slave screen hopped up from a master screen simultaneously in addition to the displaying of the master screen and also changing the displaying of the master screen by being linked with an editing operation or the like in the slave screen to improve the efficiency of the editing operation or the like and also to make fatigue small while keeping continuity of visual works. SOLUTION: In a state in which one part of the magnified picture of the master screen is displayed (a), next, when the displaying of the slave screen is sleeted, an image in which a total figure is reduced with a prescribed display magnification is display in the slave screen hoped up from the master screen (b). Then, when a cursor is moved from a left upside to a right downside, the image of the master screen is also moved in the form linked with the movement of the cursor in the slave screen (c). Then, lastly, when an operation erasing the slave screen is performed, the magnified image after the cursor is moved is displayed on the master screen (d). Thus, when an editing operation such as the moving operation of the cursor in the slave screen, a copying and so forth is performed in this way, the result of the editing operation is reflected even on the master screen being the magnified figure as it is.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image (including graphics and sentences) on a display connected to a computer.
The present invention relates to a technique for effectively using a display screen of a limited size to enhance the editing operation efficiency when performing an editing operation.

[0002]

2. Description of the Related Art Conventionally, when starting up application software such as a CAD or a graphic creation tool on a computer display to create and edit a complicated circuit design diagram or a graphic, a part of a large general drawing is accurately extracted. In order to edit, it is often the case that the portion is once enlarged and displayed for easy viewing.

In this case, when there is only one window screen at the time of starting the application software, it is necessary to edit by changing the display magnification of the entire window screen according to the fineness and complexity of the portion to be edited. Was. That is, it is necessary to frequently change the display magnification.

For example, as shown in FIG. 11, when the software is started, when the entire graphic is displayed on the screen frame (indicated by a broken line) of one window, a part of the graphic is edited with high accuracy. On the screen of the current display magnification displaying the overall view, move the cursor (indicated by an arrow) to the point you want to point (the point specified by clicking), for example, to the approximate position of the upper right part of the figure. After moving and clicking, the enlargement magnification of the whole screen around the click position is increased, and then the cursor is accurately and accurately moved to the corner of the enlarged figure and pointed. In order to return to the original overall view again after the pointing operation, the entire screen is reduced so as to return to the display magnification of the original screen.

On the other hand, as shown in FIGS. 12 (a) and 12 (b), pointing is performed by referring to the entire drawing including the part currently being edited or the text before and after, or editing the document. If you want to reduce the magnification of the entire screen displayed in the window, reduce the screen once, perform pointing or editing, and then reset the entire screen to return to the original window magnification. Expanding.

As described above, in the prior art, when there is only one window screen, the entire view and the partial view cannot be displayed at the same time, and therefore, the position of the partial view being edited in the entire view is grasped. In order to achieve this, the display of the entire screen must be enlarged or reduced on the way. In addition to the simple confirmation, it is necessary to change the display magnification of the entire window screen sequentially according to the fineness and complexity of the part to be actually edited.

As described above, not only the editing efficiency is reduced due to the necessity of frequently performing the display magnification switching operation, but also the screens before and after the display magnification switching operation are discontinuous temporally or spatially. , It is difficult to intuitively grasp the correspondence between the two screens. As a result, visual fatigue and discomfort occur.

On the other hand, for example, Japanese Patent Laid-Open Publication No.
In the technique disclosed in Japanese Patent Application Laid-Open Publication No. 2 (1999) -1995, a reduced screen of this screen is simultaneously displayed separately from the window screen currently being edited.

According to this prior art, it is possible to easily recognize which part of the whole image corresponds to the part of the image being edited, but both screens are simply displayed in parallel. However, the reduced image is merely for reference and the display of both images is not linked to each other.

Therefore, according to this prior art, for example, when it is desired to display a general view and edit a wide range,
You must once reduce the entire screen from the current display screen and edit it. Also, when returning to the original screen size again, an operation to return the display magnification to the original is also necessary .

Therefore, according to this conventional technique, although the sense of discomfort in the display environment is somewhat improved, the editing operation efficiency cannot be improved at the same time.

[0012]

According to the present invention, in order to solve the above-mentioned problem, another window popped up from a parent screen is displayed on a window screen (hereinafter referred to as a parent screen) on which an editing operation is based. The window screen (hereinafter referred to as the child screen) is displayed at the same time, and the child screen has the same editing function as the parent screen, and the parent screen and the child screen share the editing operation result and are displayed on the child screen. When an image that has been edited is edited, the image of the content resulting from the editing operation is displayed on the parent screen in accordance with the image size.

[0013] Thus, for example, the editing operation result of the whole view displayed on the sub-screen is displayed in conjunction with the partial view displayed on the main screen beyond the difference in display magnification. Conversely, the result of the editing operation in the partial view displayed on the main screen is displayed in conjunction with the entire view displayed on the sub-screen in a manner exceeding the display magnification difference.

Therefore, it is not necessary to switch the screen display, and the continuity of the displayed contents is maintained. As a result, the efficiency of the editing operation and the like are improved, and the continuity of the visual work is maintained. Less fatigue and improved convenience.

[0015]

According to the first aspect of the present invention, a child screen popped up from the parent screen is simultaneously displayed on a parent screen on which an editing operation is based, and the child screen has the same editing function as the parent screen. And the parent screen and the child screen share the editing operation result, and when the image displayed on the child screen is edited, the parent screen is linked with this,
An image of the content resulting from the editing operation is displayed according to the image size.

According to a second aspect of the present invention, when a parent screen serving as a basis of an editing operation is changed to an editing operation, a child screen popped up from the parent screen is simultaneously displayed, and the editing operation using the parent screen is performed in the child screen. When the reduced or enlarged image of the image inside is displayed at the same time and the image displayed on this sub screen is edited,
In conjunction with this, the image of the content of the editing operation is displayed according to the image size.

According to a third aspect of the present invention, when a moving image is displayed on the parent screen, a child screen popped up from the parent screen is simultaneously displayed in accordance with designation of an arbitrary portion of the parent screen, and In addition, a moving image of a predetermined size including a portion designated on the main screen is enlarged and displayed in conjunction with the main screen.

According to a fourth aspect of the present invention, when a moving image is displayed on the parent screen, a child screen popped up from the parent screen is simultaneously displayed in accordance with designation of an arbitrary portion of the parent screen, and Further, a still image of a predetermined size including a location designated on the main screen is enlarged and displayed at the same time.

Hereinafter, embodiments will be specifically described.

(Embodiment 1) An image display method according to Embodiment 1 of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram of an image processing apparatus for realizing the image display method according to the first embodiment.

This device includes an operation input device 1, a central processing unit 2, an external storage device 3, an internal memory 4, a main frame memory 5, a sub frame memory 6, and a display device 7.

The operation input device 1 is for inputting a moving operation of a cursor displayed on a display, selection of an editing operation, on / off of execution, characters, numbers, symbols, etc., for example, a mouse, a keyboard, a pen input device, and the like. including.

The central processing unit 2 includes an operation input device 1, an external storage device 3, an internal memory 4, frame memories 5, 6,.
These functions are controlled while synchronizing with the display device 7 and the like, and editing functions such as data reading, writing command transmission, enlargement / reduction, creation, copying, moving, and cutting of images, graphics, and characters are provided by a program or an operator. It performs arithmetic operations in accordance with instructions for editing work, and comprises a CPU of a computer and a control device attached thereto.

The external storage device 3 stores image processing, figure creation,
Reads or newly edits and creates data stored in a medium storing character editing programs and software including images, figures, and character data thereof, such as magnetic disks, CD-ROMs, floppy disks, and DVDs. This is the device that writes the data.

The internal memory 4 temporarily stores data read from the external storage device 3 and temporarily stores data processed by the operation of the central processing unit 2.

The main frame memory 5 temporarily stores image data to be displayed on the display device 7 and sends an image signal to the display device 7 such as a display at a high speed. The image data displayed on the screen (parent screen) of the window on which the editing operation is based, such as displayed at the time, is transferred from the OS image data and the sub-frame memory 6 operating the computer. Incoming image data can be overwritten.

The sub-frame memory 6 can temporarily store image data and transfer the image data to a predetermined address of the main frame memory 5 under the control of the central processing unit 2. It is used to display a screen (small screen) to be displayed in another window.

The display device 7 is for displaying images, characters, and the like, and is composed of, for example, a CRT or a liquid crystal panel, and has tablet performance in editing by pen input.

Here, for example, the whole drawing is a collection of many fine wiring diagrams. In order to change or edit the detailed wiring diagrams, the parent screen is displayed so that the details of the details can be understood.
It is necessary to display an image obtained by enlarging the entire view. However, if such an image is displayed, the entire enlarged view cannot be accommodated in the limited display area of the main screen, and thus a missing part is inevitably generated. For this reason, it becomes difficult to grasp which part of the entire circuit the wiring diagram displayed on the main screen is located. Further, even if the user wants to display the wiring diagram of another part to be edited next on the main screen, the position is not known.

Therefore, in the first embodiment, an image obtained by reducing the image of the parent screen as a whole is displayed in the child screen.
At this time, if you perform editing operations such as moving, copying, moving, and cutting the cursor on the reduced image in the child screen,
The result of the editing operation is directly reflected on the parent screen which is an enlarged view.

In this way, the editing operation can be performed efficiently, and the operation contents can be visually grasped as continuous operation contents.

A specific example will be described with reference to FIG.

It is assumed that a part of an enlarged image obtained by enlarging the entire view is displayed on the current parent screen as shown in FIG.

In this state, when the child screen display is selected next, for example, as shown in FIG. 2B, in the child screen popped up from the parent screen, the entire view is reduced at a predetermined display magnification. The image is displayed. Then, while checking the overall situation in the sub-screen, move the cursor, for example, as shown in FIG.
By moving from the upper left to the lower right until the state shown in (1), the image of the main screen also moves in conjunction with the movement of the cursor on the child screen. Then, if the operation of deleting the child screen is performed last, as shown in FIG. 2D, the enlarged image after the cursor is moved is displayed on the parent screen.

Hereinafter, a specific image processing operation in the first embodiment will be described with reference to the explanatory diagram of FIG. 2 and the flowchart shown in FIG.

Here, it is assumed that an editing operation is performed by displaying a part of an image obtained by enlarging the entire view on the current parent screen.

Step 1: The central processing unit 2 waits for the input of a command signal for displaying a small screen.

Step 2: The operator operates the operation input device 1
Is operated, for example, the number of mouse clicks, a specific keyboard, or a specific selection icon is clicked to input a command signal for displaying a small screen. In response, the central processing unit 2 causes the external storage device 3 The data for display of the screen selection menu is read out from and stored in the internal memory 4 once, and then displayed on the display device 7 via the main frame memory 5.

Next, the operator operates the operation input device 1 to set the size of the small screen, the magnification of the reduced display, and the like for the small screen display selection menu displayed on the display device 7.

Here, for example, in FIG. 2A, even if the internal memory 4 has a capability of reading image data in a range surrounded by a solid line at a time, the internal memory 4 reads the image data for displaying the parent screen or the child screen. The range of actual data that can be
Due to factors such as the relationship between the capacities of the frame memories 5 and 6 and the internal memory 4 and the high-speed display, the number is limited to a certain limit, and is smaller than the range. Therefore, within the limit, the size of the image to be displayed on the parent screen or the child screen can be arbitrarily set according to the size of the parent screen or the child screen, or the display magnification of enlargement or reduction. For example, the range that can be reduced and displayed on the child screen is the area surrounded by the dashed line immediately inside the solid line in FIG. 2A, and the area that can be enlarged and displayed on the parent screen is further surrounded by the dashed line. It can be set as an area.

If a default value is set in advance, the size of the small screen, the magnification of the reduced display, and the like are automatically set simultaneously with the input of the command signal for the small screen display. It is convenient to save.

Step 3: The central processing unit 2 creates both the enlarged image to be displayed on the main screen and the reduced image to be displayed on the child screen in response to the input of the instruction signal for displaying the child screen.
The data is read from the internal memory 4. Of the data read from the internal memory 4, the data for parent screen display is enlarged to the display magnification of the parent screen to be currently displayed (see FIG. 2B) and then transferred to the main frame memory 5. Is done.

Step 4... Data for displaying the small screen read out from the internal memory 4 is transferred to the central processing unit 2.

The central processing unit 2 performs reduction processing on the small-screen display data at the predetermined reduction ratio selected in step 2 (see FIG. 2C).
Is forwarded to

Step 5: The data for the child screen display transferred to the sub-frame memory 6 is temporarily stored here, and the data for the parent screen display is transferred to the main frame memory 5 under the control of the central processing unit 2. Transferred in synchronization with transfer.

Step 6: The main frame memory 5
The main screen display data transferred from the internal memory 4 and the sub-screen display data transferred from the sub-frame memory 6 are temporarily stored. In this case, when data is transferred from the sub-frame memory 6, this data is overwritten on the data for parent screen display (see FIG. 2 (d)). These data are output to the display device 7 under the control of the central processing unit 2 as image signals, and displayed as images and characters.

Step 7: The image data supplied from the main frame memory 5 is output to the display device 7 and displayed as images and characters. Therefore, on the screen of the display device 7, the parent screen and the child screen popped up from now on are displayed simultaneously.

Step 8: For the images and characters of the parent screen and the child screen displayed on the display device 7, the operator
Perform operations such as moving the cursor, copying, moving, cutting, and converting, and specifying the area of the range to be edited.

Step 9: Operation input device 1 by operator
Specific actions, such as a specific number of mouse clicks,
Unless a command signal to delete the sub-screen is input by a specific keyboard, a specific selection icon click, etc., the sub-screen remains displayed, such as cursor movement information, editing range designation, editing instruction, etc. Each information is sent to the central processing unit 2.

On the other hand, when a command signal for erasing the sub-screen is input, a process of erasing the sub-screen is executed. In this case, the child screen is erased by reading out only the main screen display data stored in the main frame memory 5 to the display device 7 without writing data from the sub frame memory 6 to the main frame memory 5. It is performed by

Step 10: The continuation of the sub-screen display is selected in step 9, and information on the movement of the cursor in the sub-screen,
When each piece of information such as the designation of an editing range and a command for editing is sent to the central processing unit 2, the central processing unit 2 performs the following processing based on the information.

When displaying on the parent screen and the child screen, the central processing unit 2 again performs data extraction and enlargement or reduction processing so as to match the display magnification of each of these screens. Is transmitted to the main frame memory 5 or the sub frame memory 6.

That is, the coordinates of the range of image data stored in the internal memory 4 that can be read at one time (the range surrounded by the solid line in FIG. 2A) so that the display of the child screen and the display of the parent screen are linked. Is used as a reference absolute coordinate system, and the image of the parent screen or the image of the child screen is converted into the absolute coordinate system and expressed.

For example, based on an absolute coordinate system,
The magnification of the image to be enlarged and displayed on the main screen is twice in each of the horizontal and vertical directions, and the image to be reduced and displayed in the sub screen is doubled in each of the horizontal and vertical directions. If there is, the movement of the main screen and the size of the area,
In the absolute coordinate system, it is represented by being reduced and converted to half the height and width,
Further, the movement and the size of the area in the child screen are expressed by being enlarged and transformed twice and vertically and horizontally in the absolute coordinate system. Therefore, assuming that the child screen has moved by one pixel in both the horizontal and vertical directions, the parent screen has four pixels in both the horizontal and vertical directions.
What is necessary is just to move by pixel.

Although the example shown in FIG. 2 is for editing a figure, an example for editing a sentence is shown in FIG.

When a sentence is displayed on the parent screen in a state as shown in FIG. 4A, in order to refer to pages before and after the sentence, conventionally, scrolling the page or moving Alternatively, a process of reducing the display magnification of the screen and simultaneously displaying a plurality of pages to be referred to is executed. In the case of the former scroll display, the text currently being input may not be displayed, and at this time, the contents of the text cannot be compared at the same time. In the latter case of simultaneous display of a plurality of pages, the size of the screen being edited is reduced as a whole, and it is difficult to input characters or read characters.

Therefore, in the first embodiment, as shown in FIG. 4B, in addition to the current parent screen being edited, a plurality of child screens in which the page to be referred to is reduced to the whole are simultaneously displayed. In addition, the child screen is linked to the operation of the parent screen. By doing so, it is possible to copy or move a sentence over a plurality of pages while the main screen is displayed. If the child screen is deleted, the state shown in FIG. FIG.
Can also be realized by the same processing as the flowchart shown in FIG.

As described above, according to the first embodiment,
In addition to displaying a part of the enlarged image of the overall view on the current main screen, a reduced overall view is displayed simultaneously on the child screen, making it easy to check images such as figures and sentences you want to see In addition, since editing can be performed on the small screen, high-speed screen search and batch editing of a large area can be performed, and continuity of display contents is maintained visually, eliminating discomfort .

(Embodiment 2) An image display method according to Embodiment 2 of the present invention will be described with reference to FIG. 1, FIG. 5 to FIG.

The configuration of the apparatus for realizing the image display method according to the second embodiment is the same as that shown in FIG. 1, and a detailed description thereof will be omitted.

Here, for example, when the whole view is a sketch of one large building and it is desired to see the arrangement relation of each room, a reduced image of the whole view is displayed on the parent screen so that the entire arrangement relation can be understood. It needs to be displayed, but if you do so, parts in the drawing (for example, rooms and furniture)
When the arrangement of the parts is changed, since the display of each part is reduced, it is difficult to perform an accurate moving operation.

Therefore, in the second embodiment, an image obtained by partially cutting out the image of the parent screen and enlarging it is displayed in the child screen. At this time, if an editing operation such as moving, copying, moving, or cutting the cursor is performed on the enlarged image in the child screen, the result of the editing operation is reflected on the parent screen as it is.

A specific example will be described with reference to FIG.

It is assumed that an image obtained by reducing the overall view is displayed on the current parent screen as shown in FIG. 5A so that the overall arrangement relationship can be understood.

In this state, when the child screen display is selected next, for example, as shown in FIG. 5B, in the child screen popped up from the parent screen, the current position pointed by the cursor on the parent screen is displayed. An enlarged image of a predetermined range centered is displayed. Therefore, while confirming the situation of the details in the child screen, the cursor can be accurately moved to the upper left corner, for example, as shown in FIG. Finally, if the operation of deleting the child screen is performed, as shown in FIG. 5D, the entire reduced image after the cursor is moved is displayed on the main screen in a manner linked to the movement of the cursor in the child screen. Is done.

Hereinafter, a specific image processing operation of the second embodiment will be described with reference to the explanatory diagram of FIG. 5 and the flowchart of FIG. The operation of the second embodiment that is common to the image processing operation of the first embodiment is the same as that described with reference to the flowchart shown in FIG.

Here, it is assumed that an editing operation is performed by displaying an image obtained by reducing the overall view on the current parent screen.

Step 1: First, the central processing unit 2 waits for input of a command signal for displaying a small screen.

Step 2: The operator operates the operation input device 1
Is operated, for example, the number of mouse clicks, a specific keyboard, or a specific selection icon is clicked to input a command signal for displaying a small screen. In response, the central processing unit 2 causes the external storage device 3 After reading the data for displaying the screen selection menu from and storing it in the internal memory 4, it displays it on the display device 7 via the main frame memory 5.

Next, the operator operates the operation input device 1 to set the size of the small screen, the magnification of the enlarged display, and the like for the small screen display selection menu displayed on the display device 7.

Here, for example, in FIG. 5 (a), even when the internal memory 4 has a capability of reading image data in a range surrounded by a solid line at a time, the internal memory 4 reads the image data for displaying the parent screen or the child screen. The range of actual data that can be
Due to factors such as the relationship between the capacities of the frame memories 5 and 6 and the internal memory 4 and the high-speed display, the number is limited to a certain limit, and is smaller than the range. Therefore, within the limit, the size of the image to be displayed on the parent screen or the child screen can be arbitrarily set according to the size of the parent screen or the child screen, or the display magnification of enlargement or reduction. For example, the range that can be reduced and displayed on the main screen is a region surrounded by a broken line immediately inside the solid line in FIG. 5A, and the range that can be reduced and displayed on the child screen is further surrounded by a broken line inside the solid line. It can be set as an area.

If a default value is set, a magnified image of a predetermined magnification is set on a sub-screen of a predetermined size at the same time as a command signal for displaying a sub-screen is input. convenient.

Step 3: The central processing unit 2 generates an entire reduced image to be displayed on the main screen and a partially enlarged image to be displayed on the child screen in response to the input of the instruction signal for displaying the child screen. And read those data from Of the data read from the internal memory 4, the data for parent screen display is reduced to the display magnification of the currently displayed parent screen (see FIG. 5B), and then transferred to the main frame memory 5. Is done.

Step 4... On the other hand, the data for the small-screen display is transferred to the central processing unit 2.

The central processing unit 2 converts the data for small-screen display read from the internal memory 4 with the magnification selected in step 2 (see FIG. 5C), and then converts this data into a sub-frame. Transfer to the memory 6.

Step 5... The sub-screen display data transferred to the sub-frame memory 6 is stored in the sub-frame memory 6.
Is stored once, and based on the control of the central processing unit 2,
The data is transferred to the main frame memory 5 in synchronization with the transfer of the data for displaying the main screen.

Step 6: The main frame memory 5
The data for parent screen creation transferred from the internal memory 4 and the data for enlarged child screen creation transferred from the sub-frame memory 6 are temporarily stored together. In this case, when data is transferred from the sub-frame memory 6,
This data is overwritten on the data for parent screen display (see FIG. 5D).

Step 7: These data stored in the main frame memory 5 are output as image signals to the display device 7 under the control of the central processing unit 2 and displayed as images and characters. Therefore, on the screen of the display device 7, the parent screen and the child screen popped up from now on are displayed simultaneously.

Step 8: For the images and characters of the parent screen and the child screen displayed on the display device 7, the operator
Perform operations such as moving the cursor, copying, moving, cutting, and converting, and specifying the area of the range to be edited.

Step 9: The operator operates the operation input device 1
Specific actions, such as a specific number of mouse clicks,
Unless a command signal to delete the sub-screen is input by a specific keyboard, a specific selection icon click, etc., the sub-screen remains displayed, such as cursor movement information, editing range designation, editing instruction, etc. Each information is sent to the central processing unit 2.

On the other hand, when a command signal for erasing the sub-screen is input, a process of erasing the sub-screen is executed. In this case, the child screen is erased by reading out only the main screen display data stored in the main frame memory 5 to the display device 7 without writing data from the sub frame memory 6 to the main frame memory 5. It is performed by

Step 10: The continuation of the sub-screen display is selected in step 9, and information on the movement of the cursor in the sub-screen,
When each piece of information such as the designation of an editing range and a command for editing is sent to the central processing unit 2, the central processing unit 2 performs the following processing based on the information.

When displaying on the parent screen and the child screen, the central processing unit 2 again performs data extraction and enlargement or reduction processing so as to match the display magnification of each of these screens. Is transmitted to the main frame memory 5 or the sub frame memory 6.

That is, the coordinates of the range of image data stored in the internal memory 4 that can be read at once (the range surrounded by the solid line in FIG. 5A) so that the display of the child screen and the display of the parent screen are linked. Is used as a reference absolute coordinate system, and the image of the parent screen or the image of the child screen is converted into the absolute coordinate system and expressed.

For example, on the basis of an absolute coordinate system,
The magnification of the image to be reduced and displayed on the main screen is 1/2 times in each of the horizontal and vertical directions, and the image to be enlarged and displayed on the child screen is doubled in each of the horizontal and vertical directions. If there is, the movement of the main screen and the size of the area,
In the absolute coordinate system, it is represented by being enlarged and transformed by a factor of two in the vertical and horizontal directions. In the absolute coordinate system, the movement and the size of the area are represented by being reduced in the vertical and horizontal directions by a factor of two. Therefore, assuming that the child screen has been moved by four pixels in the horizontal and vertical directions, the parent screen may be moved by one pixel in the horizontal and vertical directions.

Note that the example shown in FIG. 5 is a case where a figure is edited. FIG. 7 shows an example in which a partially enlarged image is displayed and edited on a child screen for character data.

As shown in FIG. 7, when windows of a plurality of applications are used at the same time and the window display of the application for text editing cannot be enlarged, the characters are small and it is difficult to input or edit. At this time, input and editing can be easily performed by displaying an image obtained by partially enlarging the text in the child screen simultaneously with the main screen of the current screen. In addition, since the input operation performed on the child screen and the edited result are simultaneously displayed on the parent screen, the input position state in the same page can be easily confirmed.

As described above, according to the second embodiment,
A partially enlarged image of the entire view is displayed on the child screen popped up from this parent screen along with the parent screen currently in use, so small images (graphics) can be easily created without changing the display of the main screen. And sentences).
Editing becomes accurate and easy, and the editing work efficiency can be greatly increased.

(Embodiment 3) An image display method according to Embodiment 3 of the present invention will be described with reference to FIGS. 1, 8, and 9. FIG.

The configuration of an apparatus for realizing the image display method according to the third embodiment is the same as that shown in FIG. 1, and a detailed description thereof will be omitted.

At present, when a moving image is displayed on a personal computer, enormous storage capacity and a high-speed transfer device are required to digitally store and read out the image data as it is, which is not practical. Therefore, there is a technology for storing and transferring image data in the form of a bit stream once compressed and encoded, decoding the image data, and displaying the decoded data.
This decoding method includes MOTION-JPEG,
There are a method of decoding and decoding with a decoder dedicated to various compression coding methods such as MPEG1, MPEG2, DV, and video CD, and a method of soft decoding with a high-speed arithmetic device regardless of the coding method. Here, the latter dedicated decoder is not particularly required, and it is assumed that a moving image is displayed with a soft decode code that takes advantage of versatility.

Here, for example, when the display device has a small screen size, or when a window for displaying a moving image is small because a plurality of windows are displayed on the screen, or when a decoding source image is displayed. When the format size of the image is small, when you want to temporarily enlarge a specific part of the image and see the details, if you enlarge the size of the main screen displaying the moving image, the display speed will suddenly decrease. As a result, it lacks smoothness as a moving image.

Therefore, in the third embodiment, a moving image in which a part of the parent screen is enlarged is displayed on a child screen having a display area smaller than the current parent screen.

In this way, a specific portion can be temporarily enlarged and viewed without lowering the display speed.

A specific example will be described with reference to FIG.

Now, when a moving image is displayed on the main screen, a specific place on the main screen (here, near the door of the house)
Is pointed by a cursor (see FIG. 8A), a moving image in which a predetermined area centered on the cursor position is enlarged is displayed on the child screen (see FIG. 8B). As a result, a decrease in the display speed is suppressed, and a moving image in which a point of interest is enlarged can be seen.

Hereinafter, a specific image processing procedure according to the third embodiment will be described with reference to a flowchart shown in FIG. The operation of the third embodiment that is common to the operation of the first embodiment is the same as that described in the flowchart shown in FIG.

Here, as described above, the external storage device 3
The central processing unit 2 soft-decodes the compressed and coded bit stream of the moving image supplied from, and transfers and reads the moving image to the main frame memory 5 at high speed, thereby displaying the moving image in the main screen of the display device 7. It is assumed that

Step 1: The central processing unit 2 waits for input of a command signal for displaying a small screen (step 1).

Step 2... Here, the operator operates the operation input device 1 to input a command signal for small-screen display, and also sets the size of the small-screen display and the partial magnification.

The central processing unit 2 reads the parent screen from the internal memory 4 in order to create both the parent screen moving image and the partial screen enlarged moving image in response to the input of the child screen display command signal. Read the bit stream. After the bit stream read from the internal memory 4 is decoded, all the decoded data is stored in the main frame memory 5 and the data in a predetermined area centered on the location pointed by the operation input device 1 is read. The data is transferred to the central processing unit 2 again as data for screen display.

Step 3... The central processing unit 2 converts the decoded data of the predetermined area read from the internal memory 4 with the enlargement magnification of the small screen selected in step 2, and converts the converted data. Sub-frame memory 6
Transfer to

Step 4... The moving picture display data of the child screen transferred to the sub-frame memory 6 is temporarily stored here, and then transferred to the main frame memory 5 under the control of the central processing unit 2. The data is transferred in synchronization with the transfer timing of the display data.

Step 5: The main frame memory 5
The data for displaying the moving image of the parent screen transferred from the internal memory 4 and the data for displaying the enlarged moving image of the child screen transferred from the sub-frame memory 6 are temporarily stored. In this case, when data is transferred from the sub-frame memory 6, this data is overwritten on the data for parent screen display.

These data are output to the display device 7 under the control of the central processing unit 2 as image signals.

Step 6: The display device 7 displays these data read from the main frame memory 5 as images or characters. Therefore, in the third embodiment, the moving image is simultaneously displayed on the screen of the display device 7 on the parent screen and the child screen that has been popped up.

Step 7 Next, unless a command signal for erasing the child screen is input from the operation input device 1, a moving image is continuously displayed on the child screen.

On the other hand, when a command signal for erasing the sub-screen is input, a process of erasing the sub-screen is executed. In this case, the child screen is erased by reading out only the main screen display data stored in the main frame memory 5 to the display device 7 without writing data from the sub frame memory 6 to the main frame memory 5. It is performed by

As described above, according to the third embodiment,
When a particularly desired portion of the moving image currently displayed on the main screen is specified, an image in which the specified portion is enlarged is displayed as a moving image on the child screen. For this reason,
It is possible to observe details while suppressing a reduction in display speed caused by enlarging the entire screen.

The processing for displaying a moving image by enlarging it on a small screen is performed simply by repeating the same line or pixel data in accordance with the decoding processing speed, or when emphasizing image quality. The processing such as linear interpolation may be appropriately selected.

(Embodiment 4) An image display method according to Embodiment 4 of the present invention will be described with reference to FIGS.

The configuration of an apparatus for realizing the image display method according to the fourth embodiment is the same as that shown in FIG. 1, and a detailed description thereof will be omitted.

In some cases, while a moving image is being displayed on the main screen, it is sometimes desired to temporarily enlarge only a specific scene as a still image. For example, if you want to freeze the information such as announcements flowing in the telop at the bottom of the screen while watching the program as it is, besides displaying the moving image of the main screen, a child screen popped up from this main screen Inside, a partially enlarged parent screen is displayed as a still image.

As a result, it is possible to confirm a specific portion desired to be viewed on the parent screen as an enlarged still image on the child screen without stopping the entire image of the parent screen.

Hereinafter, a specific image processing procedure of the fourth embodiment will be described with reference to the flowchart of FIG. The operation of the fourth embodiment that is the same as the operation of the third embodiment is the same as that described with reference to the flowchart shown in FIG.

Here, the central processing unit 2 soft-decodes the compressed and coded bit stream of the moving image supplied from the external storage device 3, transfers the bit stream to the main frame memory 5 at high speed, and reads it out. It is assumed that a moving image is displayed in the parent screen 7.

Step 1: The central processing unit 2 waits for input of a command signal for displaying a small screen (step 1).

Step 2: The operator operates the operation input device 1
To input a command signal for small-screen display and set the size of the small-screen, the partial magnification, and the like. Alternatively, when the telop is displayed horizontally flowing below the screen being displayed in the moving image and the cursor key is moved while clicking along the telop screen, a predetermined width is obtained by the moved length. May be set as the size of the child screen.

In response to the input of the command signal for displaying the sub-screen, the central processing unit 2 generates the moving image of the main screen and the partially enlarged still image of the sub-screen from the internal memory 4. Reads the bit stream of the main screen. After the bit stream read from the internal memory 4 is decoded, all decoded data is stored in the frame memory 5 and data in a predetermined area specified by the operation input device 1 is used as data for a sub-screen display. Are transferred to the data central processing unit 2 again.

Step 3: When the mode for displaying a still image on the sub-screen has been set in advance, or when the mode for displaying the still image temporarily by operating the cursor keys has been set, When a moving image is not to be displayed, the central processing unit 2 overwrites data in the small-screen display area specified when the small-screen display is selected in a fixed area of the internal memory 4 and repeatedly reads out the data. When a command signal for displaying a moving image is input in the child screen, the same processing procedure as in the third embodiment is performed.

Step 4: The central processing unit 2 converts the decoded data in the fixed area read out from the internal memory 4 for displaying the small screen with the enlargement ratio selected in step 2, and Is transferred to the sub-frame memory 6.

Step 5: The child screen display data transferred to the sub-frame memory 6 is temporarily stored here, and then transferred to the main frame memory 5 under the control of the central processing unit 2 for displaying the main screen. The data is transferred in synchronization with the data transfer timing.

Step 6: The main frame memory 5
The moving image display data transferred from the internal memory 4 and the still image display data transferred from the sub-frame memory 6 are temporarily stored (step 6). In this case, when data is transferred from the sub-frame memory 6, this data is overwritten on the data for parent screen display. These data are output to the display device 7 under the control of the central processing unit 2 as image signals, and are displayed and output as images and characters.

Step 7: The display device 7 displays these data read from the main frame memory 5 as images or characters. Therefore, in the fourth embodiment, on the screen of the display device 7, a moving image is displayed on the parent screen, and a still image is displayed on the child screen that has been popped up.

Step 8 Unless a command signal for erasing the child screen is input from the operation input device 1, a still image is continuously displayed on the child screen.

On the other hand, when a command signal for erasing the sub-screen is input, a process of erasing the sub-screen is executed. In this case, the child screen is erased by reading out only the data for main screen display stored in the main frame memory 5 to the display device 7 without writing data from the sub frame memory 6 to the main frame memory 5. Done.

As described above, according to the fourth embodiment,
If you specify a part of the moving image of the parent screen that you are currently using, especially the part you want to see, a still image that enlarges the specified part is displayed in the child screen, otherwise you can enjoy the moving image continuously. it can.

In the first to third embodiments, the main and sub frame memories 5 and 6 are used as the frame memories.
One space can be used for the main screen and the other can be used for the child screen.

[0130]

As described above, according to the present invention,
The following effects are obtained.

(1) According to the first aspect of the present invention, in addition to the display of the parent screen being used for an editing operation or the like on a screen having a limited display area, a child popped up from this parent screen is displayed. Since the screen is displayed at the same time and the display of the parent screen is changed in conjunction with the editing operation on the child screen, the display function on the parent screen can be complemented. As a result, the editing operation etc. Efficiency is improved and convenience is improved.

(2) According to the second aspect of the present invention, in addition to the currently used parent screen, an image obtained by enlarging or reducing the image of the parent screen is simultaneously displayed on the child screen. When an image in which the parent screen is reduced is displayed on the screen, it is possible to easily check an image, a figure, a sentence, or the like to be referred to, thereby enabling high-speed screen search and batch editing of a large area. Conversely, when an image obtained by enlarging the parent screen is displayed on the child screen, small-sized images, figures, texts, and the like can be easily confirmed, and the editing is accurate and easy.

In addition, since the display content of the main screen is changed in conjunction with the display content after the editing on the child screen, the editing work efficiency is greatly improved, and the visual discomfort can be greatly improved.

(3) According to the third aspect of the present invention, when an image of a particularly desired portion of the moving image of the currently used parent screen is designated, only the designated portion is displayed on the child screen. Since the enlarged image is displayed as a moving image, it is possible to confirm a detailed image while suppressing a decrease in the overall display speed.

(4) According to the fourth aspect of the present invention, a part of the moving image of the currently used main screen, in particular, a part that the user wants to see as a still image is enlarged and displayed as a still image. In addition to being able to confirm the portion sufficiently, other portions of the video can be enjoyed continuously.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration diagram of an apparatus for realizing an image display method according to Embodiments 1 to 4 of the present invention.

FIG. 2 is an explanatory diagram illustrating an example of an image display method according to the first embodiment of the present invention.

FIG. 3 is a flowchart of an image display method according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing another example of the image display method according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram illustrating an example of an image display method according to a second embodiment of the present invention.

FIG. 6 is a flowchart of an image display method according to the second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing another example of the image display method according to the second embodiment of the present invention.

FIG. 8 is an explanatory diagram illustrating an example of an image display method according to a third embodiment of the present invention.

FIG. 9 is a flowchart of an image display method according to a third embodiment of the present invention.

FIG. 10 is a flowchart of an image display method according to a fourth embodiment of the present invention.

FIG. 11 is an explanatory diagram showing a conventional image display method related to the present invention.

FIG. 12 is an explanatory diagram showing a conventional image display method related to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 operation input device 2 central processing unit 3 external storage device 4 internal memory 5 mainframe memory 6 subframe memory 7 display device

Claims (4)

[Claims] 1. A parent screen serving as a basis for an editing operation,
The child screen popped up from this parent screen is displayed at the same time, and the child screen has the same editing function as the parent screen, and the parent screen and the child screen share the editing operation result,
When you edit the image displayed on the inset screen,
An image display method, characterized in that an image of the content of the result of the editing operation is displayed on the main screen in accordance with the image size. 2. The image display method according to claim 1, wherein an image obtained by reducing or enlarging an image being edited on the main screen is displayed in the child screen. 3. When a moving image is displayed on a main screen,
The child screen popped up from the parent screen is displayed at the same time in accordance with the designation of an arbitrary part of this parent screen, and a moving image of a predetermined size including the part specified in the parent screen is enlarged in conjunction with the parent screen in this child screen. An image display method characterized by displaying. 4. When a moving image is displayed on a main screen,
The child screen popped up from the parent screen in accordance with the designation of an arbitrary part of the parent screen is simultaneously displayed, and a still image of a predetermined size including the part designated by the parent screen is enlarged and simultaneously displayed in the child screen. An image display method characterized by the following.