JPH03296096A - infinite scroll device - Google Patents

Abstract

PURPOSE:To scroll and display an image which is enlarged into plural frames and to obtain production which provides a feeling of presence by performing an endless scrolling process for image data of >=3 image planes. CONSTITUTION:A frame memory 18 is stored with still image data A and B of two image planes, which are read out and scrolled while their read addresses are shifted. In this case, a next still image C is stored in the frame memory 18 while replacing the data up to the point of time when scrolling from the still image data A to the data B ends completely and the read start address is shifted to perform scrolling from the data B to the data C, thereby displaying the still image data on a display device 16. Similarly, still image data D, E... are switched in order and still image data of >=3 image planes are scrolled endlessly. Consequently, the still image which is enlarged into plural frames can be scrolled and displayed.

Description

[Detailed description of the invention] [Industrial application field]

TECHNICAL FIELD The present invention relates to an infinite scroll device, and in particular, to an art museum,
The present invention relates to an infinite scroll device suitable for use when producing still image programs to be broadcast in libraries, museums, etc., such as high-definition still image programs, and when displaying still images for database searches.

[Conventional technology]

Image data on a display screen is made to disappear from the screen while moving as one image rolls up, and another image appears in its place. That is, scrolling effect processing may be applied to various video programs and still image programs. Conventionally, devices that perform such scroll effect processing on still image data record two screens worth of still image data, which is twice the size of the display screen, in a frame memory, and read it from the frame memory. Some systems employ a method of shifting the start address and scrolling the display.

[The problem that the invention tries to solve! ! ]

However, in the conventional scroll device,
When trying to create an infinite scroll effect in which still image data displayed one after another is switched, it is possible to scroll two screens by shifting the readout address, but for example, it is possible to scroll from image @A to image B and switch. , there was a problem in that it was not possible to scroll and switch from this image @B to image *C to create an effect of infinitely scrolling the interesting still image data of three or more screens. The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide an infinite scrolling device that can perform infinite scrolling processing on three or more screens of interesting images.

[Means for Solving the Problems] The present invention provides an apparatus for scrolling still image data displayed on a display screen, which comprises a frame memory capable of recording still image data of a first screen and a second screen; flame·
1 still image data from memory read start address
means for reading frames and displaying them on a display screen; means for sequentially shifting the reading start address to scroll read still image data from a first screen to a second screen; By the time the read start address changes from the part where the still image data of the first screen is recorded to the part where the still image data of the second screen is recorded, the first screen recorded in the frame memory is By comprising means for replacing still image data with new still image data,
The above objectives have been achieved.

[Effect]

Conventionally, when scrolling and displaying images, two screens of still image data are recorded in a frame memory, and basically infinite scrolling is only possible in which the two screens' worth of still image data are alternately switched. In response to this, the inventor conducted various studies and came up with the following idea. Namely, the frame memory has a capacity of two screens worth of still image data, and the frame memory has the following idea:
First, two screens worth of still image data A and B are stored and read out and scrolled while shifting the readout start address. In this case, the still image data A is completely scrolled to the still image data B. By the end of the process, the next still image data C is replaced with still image data A.
is stored in the frame memory, the still image data can be displayed by scrolling from still image data B to still image data C by shifting the readout start address. After that, by sequentially changing the image data to be recorded, such as still image data D, still image data E, etc., infinite scrolling can be performed. The present invention has been made based on the above findings. In the present invention, infinite scroll processing can be performed on three or more screens of still image data one after another. Therefore, for example, an enlarged (zoomed) still image that spans multiple frames, which could not be displayed conventionally, can be scrolled and displayed, making it possible to create a realistic presentation.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this embodiment, still image data A as shown in FIG.
This is an infinite scroll system for still images that digitally calculates , B, C, etc. and performs effect processing to display them one after another by scrolling. As shown in FIG. 1, this infinite scroll system for still images mainly includes an image input device 10, an infinite scroll device 12, a command input device 14, and a display device 6. The image input device 10 inputs still image data (in the embodiment, still image data A, B, C) used in the scroll process.
... is for inputting pixel data of 1024 pixels x 1024 pixels horizontally for red (R), green (G), and blue (B)9 For example, using a high-definition camera or a color scanner. be able to. The infinite scroll device 12 includes a frame memory section 1
8 (in the embodiment, it has a capacity that can store pixel data of 1024 horizontally x 2048 vertically for each of R, G, and B),
Control for instructing recording of still image data in the frame memory section 18, reading of still image data on the frame memory section 18, and transfer to the display device 16 in accordance with commands input from the command input device 14; Part 20 and
An image storage/high-speed transfer section 22 stores input still image data according to instructions from the control section 20 and transfers it to the frame memory section 18 at high speed; It also includes an image reading and transferring section 24 for reading still image data and transferring it to the display device 16. The display device 16 displays the transferred still image data on a screen, and is, for example, a high-definition monitor or an NTSC monitor.
A system monitor can be used. The effects of the embodiment will be explained below. The scrolling process performed by the infinite scrolling system for still images of the embodiment includes process preparation and process execution. When preparing for processing, still image data A, B, C, . In this way, the processing preparation is completed. When executing the process, it is executed according to the procedure shown in FIG. That is, first, the operator inputs the image base (A, B, C) of the still image data to be used in the scroll process from the command input device 14.
), scroll direction (up in the example),
) direction) and press the control unit 2 of the infinite scroll device 12.
0, the input scrolling image base (A, B, C,
), read the scroll direction (tJP) (Step 1
). Next, the control unit 20 sends the still image data A, B of the image base (A, B) to the image storage/high-speed transfer unit 22 as a frame.
A command is given to transfer the data to the memory unit 18. In this case, as shown in FIG. 3, the still image data A of the image base (A) is
The image base (B
) still image data B from the coordinates (0,1024) at the bottom of the frame memory unit 18 to the coordinates (1023,2°4
7) to be stored in the area. The image storage/high-speed transfer section 22 transfers still image data A and B of the image base (A, B) to the frame memory section 18 and records them, as shown in FIG. Step 2). Next, the control unit 20 sends the image reading and transferring unit 24 the coordinates (
X, Y) (Step 3). In the embodiment, the coordinates (X, Y) of the start address are X=0.
, y=n, and the constant n is changed from 0 to 1 in the subsequent step 5.6.
It is stepped up one by one up to 024. Next, the image reading and transferring unit 24 scans one frame worth of still image data RF from the coordinates (X, Y) of the reading start address instructed by the control unit 20, as shown by the broken line in FIG. The image is transferred to the display device 16 (step 4). Next, increment the constant n by 1 (n+1-〇)
(Step 5), the incremented constant n is 102
4 or not, and perform steps 3 to 5 until the value n of the coordinate Y reaches 1024 (step 6). As a result, the constant n is stepped up from 1 to 1024, and each Since the image data is read out one frame at a time in each step, it is possible to perform an effect process of scrolling and switching the image data transferred to the display device 16 and displayed from image data A to image data B. Next, when the constant n>1024 and reading of the still image data A of the image base (A) is completed, the control unit 20 sends the image data B of the image base (B) to the image storage/high-speed transfer unit 22 as a frame. - Instructs to transfer to the memory section 18. In the embodiment, an area from coordinates (0, 0) to (1023, 1023) at the top of the frame memory unit 18 is designated. The image storage/high-speed transfer section 22 transfers the image data B with the image name (B) to the frame memory section 18, as shown in FIG. 4, in accordance with the command from the control section (step 7). Next, the control unit 20 sends the image @ reading transfer unit 24 the coordinates (
X, Y) (Step 8). In the example, the coordinates (X, Y) of the starting address are (Ol
o). Next, the image reading and transferring section 24 scans still image data for one frame from the instructed start address (X, Y) of the frame memory section 18 and transfers it to the display device 1.
6 (Step 9). Next, the control unit 20 instructs the image storage/high-speed transfer unit 22 to transfer the image name C to the frame memory unit 18. In the embodiment, the image data instructed to be transferred is a frame.
From the coordinates (0,1024) at the bottom of the memory section 18 to (102
3,2047). The image storage/high-speed transfer section 22 stores the image *C in the frame memory section 18 as shown in FIG. 5 in accordance with the instructions from the control section 20.
(Step 10). Next, the control unit 20 instructs the image reading and transferring unit 24 to read out the start address from the frame memory unit 18.
(X, Y) (step 11), in the example, the coordinates (X, Y) of the starting address are X=O1Y=n, and the constant n is 1 to 1024 in the later step 13.
Step by step. The coordinate read and transfer unit 24 scans one frame from the designated start address (X, Y) of the frame memory, and transfers the image data to the display device 16 (step 12). Next, the constant n is incremented by 1 (n+1-〇) (Step 13) 6 Next, it is determined whether the constant n exceeds 1024, and if it does not exceed 1024, the process returns to Step 11, and Steps 11- 13 is repeated until n reaches 1024 (step 14), thereby increasing n from 1 to 1.
In order to read out the image data one frame at a time for each stage by stepping up to 024 one by one, the image data to be transferred to the display device 16 and displayed is scrolled from image data B to image data C. It is possible to perform switching effect processing. The above steps 7 to 14 are performed on image data D, E, F.
. . . By sequentially changing the image data, infinite scrolling can be performed for three or more screens of image data. In the above embodiment, in step 9, image B is transferred from the image storage/high-speed transfer section 22 to the frame memory section 18.
The top seat! From (0,0) to coordinates (1023,1023
), but in addition to this, the lower coordinates (0,
1024) to the area with coordinates (1023, 2047>) can also be transferred to the upper area. In this case, image data B is recorded in the upper area when reading the image. The start address to be read into the transfer unit 24 is the coordinate (0) of the frame memory unit 18.
, 0), but if the readout start address can be read from the lower coordinates (0, 1024), there is no need to transfer image data B to the upper area, and one image data C can be read. It is possible to perform infinite scrolling by recording and reading data in the upper area. Further, in the above embodiment, image data C was transferred after reading image data B from image data A, but image data is transferred to the line on the frame memory 18 after reading image data A. It is also possible to write image data C. In this case, image data C can be written immediately after reading image data A, so there is no need to wait while transferring image data, and quick scrolling is possible. become. Effects of the Invention As described above, according to the present invention, infinite scroll processing can be performed on image data of three or more screens. Therefore,
1 that I couldn't express until now! It is possible to scroll an enlarged image that spans several frames, providing excellent effects such as making it possible to create a realistic presentation.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of an infinite scroll system according to an embodiment of the present invention, FIG. 2 is a flowchart showing the scroll processing procedure of the embodiment, and FIGS. 3, 4, and 5 FIG. 2 is a plan view showing an example of an area where images are stored on a frame memory section, for explaining the operation of the embodiment. 0... Image input device, 2... Infinite scroll device, 4... Command input device, 8... Frame memory section, 0... Control section, 2... Image storage/high-speed transfer section , 4... Image ffi reading and transferring section. 6...Display device,

Claims (1)

[Claims] (1) A device for scrolling still image data displayed on a display screen, which includes a frame memory capable of recording still image data of a first screen and a second screen, and a still image from a reading start address of the frame memory. means for reading one frame of data and displaying it on a display screen; means for sequentially shifting the readout start address to scroll read still image data from a first screen to a second screen;・The read start address in memory is the first
From the part where the still image data of the screen is recorded to the part where the still image data of the second screen is recorded, the still image data of the first screen recorded in the frame memory is replaced with a new one. An infinite scrolling device comprising: means for changing to still image data;