DE3243900A1 - Method and device for controlling an image display - Google Patents

Description

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Method and device for controlling a

Image display

The invention relates to a method and a device for controlling a multi-section image display _t for displaying document image data, such as
Charts, business papers and maps
serves.

A bit image display is commonly used on a display connected to a computer: On

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Bit image is also referred to as display memory, which is located at intersections of a two-dimensional image stores data to be displayed. If you divide a screen of the bit image display into several areas (excerpts) divides, it becomes possible to display several image data at the same time and to assign them independently of one another steer. This is called multi-crop image display and has the advantage that the image data can be easily retrieved and compared.

The concept of multi-pane display is well known and several uses have been made of it. Many relate to character display and are used to display encoded character data such as alphanumeric Characters, thought as it is in an article "A timesharing display terminal session manager" by J.M. McCrossion et al, in the IBM System Journal, Vol. 17, No. 3, 1978, pp. 260-274.

Another type of multi-section display, "a multi-graphic display", is disclosed in Japanese Patent Laid-Open 54-75225 suggested. In the proposed display, a screen with display data is in Subdivided blocks that are chained to one another and thus enable the display data to be processed, The individual display data can be rotated, shifted or scaled block by block. The to be transacted Data is graphic data such as lines or arcs.

A third category is the multi-section display for image data. An example of this is hiring

Two-screen television, with which two programs can be shown simultaneously (see Nikkei Electronics, February 26, 1977, pp. 127-132). The two-screen television sets television screens by temporal control of a video signal, but offers neither the possibility to execute the image data, delete, create or move, nor move the image section or his To change dimensions.

It is therefore an object of the invention to provide a method and an apparatus for controlling a multi-section image display indicate the interactive control of the location and changes in dimension, Changing the overlay, deleting and creating the Excerpts, as well as a lateral or vertical shift of the image data excerpt by excerpt and enable a square area to be extracted from the image data in order to display it in the detail.

To solve the above problem, according to FIG. 1, in the multiple section display according to the invention, multiple sections W ₁ , W ₂ , ... are defined on a screen D of the image display, and partial data of an image a and an image b ( Data of right-angled areas, as indicated by dashed lines) are displayed at the respective sections.

According to the invention is a change in the display content the multiple excerpts from (1) to (2) in Fig. 2 possible (in order to extract the partial images of images a and b to change), d. that is, that the multiple sections are so shifted

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-be praised / that the image data are shifted sideways and vertically section by section. Likewise is according to the invention the change in the position of the cutouts; W-, and w- on the screen / like changing (2) j according to (3) of Fig. 2, provided.

In addition, according to the invention, the change in the ab- _; Measurements of the sections W ₁ and W ₂ on the screen are provided, as seen from (3) to (4) of Fig. 2. |

In addition, according to the invention, a change in the superposition of the sections W ₁ and w _{2 is} provided, as from (4) to (5) of FIG. 2.

In (4) of FIG. 2, the cutout is W ₂ above the cut-W ₁ and in (5) of Fig. 2 is the section W ₁ w ₂ placed over the cutout. In addition, the invention offers the possibility of deleting or creating sections on the screen, as in Fig. 2 from (5) to (6). In (6) in Fig. 2 the section w _{o has been} deleted _/ and new sections w and W _- J have been created.

The invention is described in more detail below with reference to the drawing. Show it:

Fig. 1 is a conceptual diagram of a multi-pane display;

2 shows a diagram of the concept of the display functions made possible according to the invention;

Fig. 3 is a block diagram of an embodiment of the Invention;

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Pig. 4A and 4B file management table layouts and a clip management table used in the invention be used;

Fig. 5 shows elements of the section management table; 6 examples of instructions;

Fig. 7 is a flow chart of a program to be executed by a processor?

Fig. 8 is a flowchart showing a procedure creating the clip management table continues according to a "CREATE" statement;

9 is a flowchart "illustrating a procedure in which the section management table is updated according to a "DELETE" statement.

The preferred exemplary embodiments are described in detail below with reference to the figure.

Fig. 3 shows an embodiment of the invention. The device according to the invention contains a keyboard 1 for entering coded data and instructions, a memory 2, which stores programs and tables, a processor 3, e.g. B. a microprocessor, an image input device 4 such as a facsimile device, a file device 5 that stores the image data; a data compressor-decompressor 6 that stores the

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Image data compressed and decompressed, an image memory 7 which temporarily stores image data, a transfer controller 8 which controls data transfer between the image memory 7 and a bit image refresh memory 9, the bit image display refresh memory 9, and an image display 10. Each of the above units is per se known. The image data to be displayed on the image display 10 is designated by the keyboard 1, and the corresponding image data is retrieved by the file device 5 in which image data is previously stored. The image data to be stored are input from the image input device 4, compressed by the data compressor-decompressor 6, input to the file device 5 and stored therein. To manage the data stored in the file device 5 data .to, the main memory 2, a file management table 2A, the search key contains (such as the title of the image data), retrieve the image data, memory addresses, dimensions of the images and data length _r as shown in Fig. 4A. These additional data are provided by the processor 3 in accordance with the instructions entered from the keyboard 1. The image display shows the images in several areas called clippings. The properties of the patches are defined by a patch management table 2B contained in the main memory 2. The clip management table 2B contains locations and dimensions of the clips, their levels, the titles of the image data to be displayed in the clips, and extracted locations of the image data, as shown in Fig. 4B. For example, if an image m is to be displayed in a section i, the data

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Fields of the section management table 2b shown, as shown in FIG. 5, in the X. and Y. the location of the Section i, W. and H ^ the dimension of the section i ü and V the extracted location of the image m and S

and T represent the dimension of the image m, m

In Fig. 6 are examples of commands to be executed shown in the multi-section display. These commands are entered from the keyboard 1 and decoded to execute a program running in processor 3. Fig. 7 shows steps in the processor 3 executed program. The number 100 denotes a step which one on the keyboard 1 read the command entered and decode it?

the numeral 200 denotes a step / the updates the content of the portal management table in accordance with the command; and

the number 300 a step that the image data in a predetermined section with reference to the Section management table and file management table = The following describes the contents of the the program running on each instruction.

[a ~ J Creating the section (CREATE command) (i) Enter and decode command (100)

The location (side and length) on the screen and the dimension (side and length) of the one to be created Excerpts are indicated by the keyboard. The processor reads this data.

(ii) Updating the portal management table (200)

In Fig. 8 details of step 200 for creating the section are shown. In an intermediate step 21OA is the content of a section counter (WC), which indicates the number of sections created on the screen, incremented by 1. As the number of the cutouts registered in the cutout management table 2B can be limited, the number is checked in an intermediate step 210B. If the reading of the cutout counter WC is over a limit value, the portal management table 2B overflows. Accordingly error processing such as displaying a warning is performed in intermediate step 210E. If the clipping management table does not overflow, it means that an unused section of the screen and this is searched for in an intermediate step 210C. Show in the cutout management table Marking bits indicate the state of use of the cutouts. In an intermediate step 210D, a new section i created, where i is one of the unused or remaining section numbers (F. = 0) and required data inscribed in the cutting management table. The data indicated by the keyboard (location and position of the section) are entered in the section management table as characteristics (X., Y., W., H ^) of the section i stored. The level in the clipping management table represents the vertical ratio of the overlay of the section on the screen. If a section with a higher level at the same location of a section with is to be displayed at a lower level, the former is superimposed on the latter. A newly created Cutting has the highest level of all available

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Excerpts ο For a new excerpt i becomes a Level L. defined by the relationship L. = WC-1. If, for example, no further section than the section i is present, WC = 1 and thus L. = O. If for Excerpt i there is another excerpt is WC = 2 and thus L. = 1 “The reason why in This way the levels are defined, simplifying the processing for the commands (FLOAT and SINK), which swap the overlapping of the sections. At the time when the section i is created, the image data to be displayed in the section i must not yet be designated, but it must be clearly indicated that the section has been created. Thus, image data with a special pattern are displayed in the newly created section (ζ * B, all white, all black or crossing pattern), and the title of the image data (D.) is in the image management table for inscribed the section i. After the inscription, the marking bit F. of the section i set to "1" in the portal management table, indicating the creation of the portal.

(iii) Display of the image data (300)

The image data for the other sections, not those for the newly created section, are stored in the refresh memory 9 held »The level of section i is higher than the level of any other section. Corresponding the image data for the section i are only retrieved from the image file device 5 and transferred to the refresh memory 9 “The title of the im Image data to be displayed is stored in the clip management table, and the storage address the image data, the dimensions (side and length)

of the image and the data length are stored in the file management table. The image data are compressed and the compressed image data in the file device saved. They are decompressed by the compressor-decompressor 6 and the decompressed data is sent to the Transfer image memory 7. Only the data for the given rectangular area defined by the cutout management table 2B, are extracted from the image data from the memory 7 and converted into a transferred to the specified area of the refresh memory. The processing of the detachment is carried out by the transfer control 8 controlled. When the transmission control system disclosed by Japanese Application 55/85178 is used, the triggering procedure can be performed at high speed.

\ b \ Deleting the section (DELETE command) (i) Input and decoding command (100)

The section number to be deleted is entered on keyboard 1 and read into processor 3. The section number is denoted by j.

(ii) Updating the portal management table (200)

The content of step 200 for deleting the section is shown in detail in FIG. In In an intermediate step 220A, the content (WC) of the section counter is decremented by 1. The mark Fj of the section to be deleted is set to "0" in intermediate step 200B and thus the number j is not used cutout number released. Since the exit

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section j is deleted, it is necessary to update the levels of those sections that have a higher Own level as L. This is carried out in an intermediate step 22OC in which the levels of the cutouts k, which satisfy the condition L,> L.,

^K D can be updated by the operation L, fr-L, -1 ·.

(iii) Display of the image data (300)

The image data for all the sections stored in the section management table are from the image file device 5 is retrieved and displayed on the display 10. This processing is done sequentially carried out starting from the lowest cutting level. The processing for the respective sections is identical to that of [A] and is therefore not described. The marking bit of the section j in of the portal management table is now in the reset state and thus the portal becomes · j neglected in step 300. As a result, the portion j is deleted from the display.

[c] Changing the dimensions of the section (SCALE command) (i) Enter and Decode Command (100)

The number of the section and its size after the change are identified by the keyboard 1 and from Processor 3 read. The cutout number is denoted by j and the size after the change is denoted by W. (on the side) and H. (lengthways) inscribed.

BATH ORIGINAL

(ii) advance of the clip management table (, 20O)

The data W. and H. of the section j in the section management table are changed to W. and H. respectively. Further data is stored in the section management table not changed.

(iii) Display of the image data (300)

Step 300 is performed sequentially starting from lowest clipping level, performed as in the processing of deleting the clipping gen was.

Moving the section (MOVE command) (i) Input and decoding command (100)

The number of the section to be moved and the coordinates of the location on the screen to which the section is is pushed, are designated by the keyboard 1 and read in by the processor 3. The cutout number is with j and the coordinates of the place to which the section is moved are with X. (to the side) and Y. (lengthways).

(ii) Updating the portal management table (200)

The data of the section j and X. and Y. are stored in the section management table in X. and Y., respectively. changed.

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(iii) Display of the image data (300)

Step 300 is identical to that of the section deletion processing and therefore does not continue explained.

[e] Changing the superimposition of the sections (FLOAT command)

(i) Enter and Decode Command (100)

If the section j is to be displayed superimposed on the section i, the section numbers i and j determined by the keyboard 1 and read in by the processor. The coordinates (side and length) of the The display locations of the sections are not changed.

(ii) Updating the portal management table (200)

The levels of the portals registered in the portals management table are changed as follows:

For the section k, that of the condition

L. + l - L, - L. is enough, the level becomes with the operation 3 κ ι

L. «- L, - 1 changed.

[2j The level of the section j is changed in accordance with the operation L. <■ [level of the section i before the change].

[3J The level of further excerpts is not changed.

- 20 (iii) Display of the image data (300)

Step 300 is identical to that of the trimming processing except that the image data only of section j and those sections that have a higher level than section j, are displayed.

FfJ Change of the superimposition of the sections (SINK command)

(i) Enter and Decode Command (100)

If the section j is superimposed below the section i. should be displayed, the Cutout numbers j and i are determined by keyboard 1 and read in by processor 3. The coordinates (on the side and along) the display locations of the sections are not changed.

(ii) Updating the portal management table (200)

The levels of the portals registered in the portals management table are changed as follows:

(T) For the section k which satisfies the condition L. - L, ^ L.-l, the level becomes with the operation

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L ₁ 4r L ₁ +1 changed.

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(V) For the section j, the level is changed with the operation L. 4- ("Level of the section i before the change].

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\ 3) The levels of further excerpts are not changed.

(iii) Display of the image data (300)

Step 300 is the same as trimming processing except that the image data only those sections are displayed whose levels are higher than the level of section j

GJ Retrieval and display of the image data (FIND command)

(i) Enter and decode command (100)

The location (U, V) of the rectangle area, which is made up of the m m

Image data m is extracted, and the number of the section j in which the image data are to be displayed, are determined by the keyboard 1 and read in by the processor 3.

(ii) Updating the portal management table (200)

The title of the image data and the location of the extraction (lateral and longitudinal coordinates) of the in the section management table registered contents of the section j are respectively changed to m, U and V as defined by the Keyboard 1 were determined.

(iii) Display of the image data (300)

Step 300 is the same as trimming processing except that the image data

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only of the section j and those sections which have a higher level than the section j are displayed will.

[h] Shifting the image data (SCROLL command) (i) Input and decoding command (100)

The "SCROLL" processing changes the trigger location for the image data to be displayed. The number of the section in which the movement is to be carried out and the new movement point are determined by the Keyboard 1 determined and read by processor 3. The cutout number is labeled j and the new one

The trigger point is with U (side) and V (lengthways) leg m

draws, where m represents the title of the image data to be displayed in section j.

(ii) Updating the area management table (200)

The trigger point of the in the portal management table registered content of section j

to U and V as determined by keyboard 1, mm

changed.

■ (iii) Display of the image data (300)

Step 300 is identical to the trimming processing except that only the image data of section j and those sections that have a higher level than section j are displayed will.

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[i] Exchange of image data (EXCHANGE command) (i) Input and decoding command (100)

This command exchanges the image data to be displayed between two sections. The cutout numbers i and j, the content of which is to be exchanged, are from the keyboard 1 determined and read by the processor 3.

(ii) Updating the section management table (200)

The titles of the image data and those in the trimming management table registered trip points are exchanged between the sections i and j.

(iii) Display of the image data (300)

The image data are displayed one after the other, starting with the section with the lowest level, as is done in crop erase processing. The image data are only for those excerpts whose level is equal to or greater than L. or L.

According to the above description, a large number of data are displayed simultaneously according to the invention, by dividing the screen into a number of sections, the respective images can be independently retrieved from each other and the comparison of the image data is simplified.

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Claims (10)

BEETZ & PARTNER ": Ι. ^: _β . ^: > L .:. Pafentäawälte Steinsdorfstr. 10 D-8000 Munich 22 European Patent Attorneys Telephone (089) 22 7201 - 22 7244 - 29 5910 Π 'I I R Telex 522048 - Telegram Allpat 'Munich _' '' ...__. Dr.-lng. R. BEETZ jun. 81-34.418P - Dr.-lng. W. TIMPE Dipl.-Ing. J. SIEGFRIED Priv.-Doz. Dipl.-Chem. Dr. rer. nat W. SCHMITT-FUMIAN Dipl-lng. K. LAMPRECHTt 1981 Nov 26, 1982 Claims rl /) Control device for an image display, characterized by - A file device (5), which a plurality of Stores image data; - A picture display device (10) on which partial areas the image data in several sections on a display screen are displayed; - a memory (2) that manages a file management table (Figure 2A), the information including the title of the data stored in the file apparatus image data and their storage addresses and a segment management table (Figure 2B) _r stores the information including the locations and dimensions of the cutouts on the screen and trigger locations of the image data are managed; - An input device (1) on which input commands and data, the locations and dimensions of the sections on the screen and the triggering locations of the in the Image data to be displayed are inputted; and - A processor (3) connected to the input device and the file device, which processes the image data from of the file device in accordance with the commands and data input from the input device and controls the display of desired triggered images in the panels on the screen. 81- (A7272-O2) -AtSl 2. A method of controlling an image display device having a file management panel that contains information including retrieval key for the image data stored in a file memory, and stores their memory addresses, and with a cutout management table, the information including the locations and dimensions of the cutouts saves the image data on a screen and the trigger locations, characterized by the following steps: A) reading a command from an input device and decoding this command; B) Updating the content of the clip management table according to the content of the command; and C) Display of the image data in a specified section with reference to the portal management table and the file management table. 3. A method for controlling an image display device according to claim 2, characterized by the following steps: Al) Entering a command that causes the creation of a section and data, the location and dimensions determine the section to be created on the screen; Bl) Compare the number of cutouts to be created with a predetermined number and register the Input data in the section management table if the number entered is less than or equal to the given number is; Λ O 0 β Cl) displaying the image data retrieved in the file device in the excerpt obtained by the data entered regarding the location. and dimension, is determined. 4. A method for controlling an image display device according to claim 1, characterized by the successive Steps; A2) Entering a command that causes the deletion of a section, and entering data that the Determine cutout; B2) Resetting a marker bit according to the entered section in the section management table; ' C2) retrieval from file device and display the image data for the sections entered in the section management table whose marking bits are set. 5. A method for controlling an image display device according to claim 2, characterized by the following steps: A3) Entering a command that causes the dimension of a cutout to be changed from data relating to the cutout determine and of data that determine the dimensions of the cutout after the change; B3) Change of data on the dimension of the in the cutout management table registered section according to the data entered in A3); C3) Display the image data in the section whose size has been changed with reference to the section management table and the file management table. 6. A method of controlling an image display device according to claim 2, characterized by the following steps: A4) Input of a command that causes a section to be moved and input of data that determine the cutout and a destination for the move; B4) Change of data on the location of the in the portal management table registered section according to the data entered in A4); C4) Display the image data in the clip whose location has been changed with reference to the clip management table and the file management table. 7. A method for controlling an image display device according to claim 2, characterized by the following steps: A5) Entering a command that superimposes the cutouts changes, and input of data that determine the sections; B5) Modification of the levels of the sections determined by the entered data and in the section management table are registered, according to the entered data; CS) Display the image data in the areas whose levels are registered in the area management table. 8. A method for controlling an image display device according to claim 2, characterized by the following steps: A6) Entering a command that allows retrieval and causes image data to be displayed, and data inputting a location of one of the image data Rectangular area to be extracted and a section in which the extracted image data are to be displayed, · specify; B6) changing data _r indicating a title of the image data and the extraction location for the segment registered in the segment management table according to the inputted data; C6) Display of the image data extracted from the image data after the change in the particular section, 9. A method for controlling an image display device according to claim 2, characterized by the following steps: A7) Entering a command that causes the data defining the section to be moved, and Surrender of a new trigger location for the image data; B7) Change of data indicating the trip location for the section registered in the section management table concern, according to the entered data; C7) Display of the image data of the changed trigger location in the section determined in step A7). BAD ORiGiNAL -β- 10. A method of controlling an image display device according to claim 2,. characterized by the following steps:! ■ A8) Entering a command that allows the exchange of [ Causes image data between several sections, and \ Entry of data which the excerpts for the V determine exchange; \ B8) Exchange of the image data and the trigger locations for the
registered in the cutting management table Excerpts; , C8) Display of the image data in the sections with reference on the changed cut management would be He and [, the file management table. !