JPH0540468A - Image display device - Google Patents

Abstract

PURPOSE:To obtain an image display device capable of providing an image on which remarkably unique information is attached by containing a temporal element in the image to be synthesized and displayed when another image is displayed by synthesizing with a main image. CONSTITUTION:Image information is stored in an image memory circuit 4 by conforming to time information, and when the image information inputted from an external image input circuit 3 is displayed by synthesizing with the one stored in the image memory circuit 4, time measurement is started by input from an input circuit 6, and when coincidence between the time information stored in the image memory circuit 4 and measuring time is obtained at a comparator 8, a control circuit 2 designates the image information as the one stored by conforming to the time information in which the coincidence is obtained to be synthesized and displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device for synthesizing and displaying a main image and another image having a temporal element.

[0002]

2. Description of the Related Art Conventionally, an information processing apparatus such as a personal computer or a workstation has been used to synthesize and display a plurality of images on the same screen by superimposing or dividing the screen. As the image information to be displayed, the image information formed in the information processing device, the image information stored in the external storage device, the image information read by the scanner, for example, the video signal by the NTSC system, etc. Some are entered.

[0003]

When two images, that is, a continuously changing image (moving image) such as an image by a video signal and a still image are combined, the still image is automatically generated at a desired time interval. However, it was not possible to update it (change the displayed still image to another still image).

Many of the images based on the video signal have a content including a temporal element (for example, athletics such as marathons and swimming), and when other images are combined and displayed on such images, other images are displayed. It is desired that the image also include a temporal element and be composite-displayed.

The present invention has been made in view of such a point, and provides an image display device capable of displaying a main image by including a temporal element when another image is combined and displayed. To do.

[0006]

SUMMARY OF THE INVENTION The present invention is an image display apparatus for synthesizing and displaying main image information input from a main image input means and other image information, the sub-image information and the sub-image information. And sub-image storage means for storing time information corresponding thereto, time measuring means for measuring time, input means for giving timing of starting measurement to the time measuring means, time information and time measurement stored in the sub-image storing means. Comparing means for comparing the time measured by the means to detect the coincidence, and when the comparing means detects the coincidence, the sub-image information corresponding to the time information of the coincidence is synthesized with the main image information. And a control unit for setting image information to be displayed.

[0007]

When the main image information input from the main image input means and the sub-image information stored in the sub-image storage means are combined and displayed, the time counting means starts the time measurement by the input from the input means, and the comparison is performed. When the time information stored in the sub-image storage means and the measured time are matched by the means, the control means sets the sub-image information stored in correspondence with the matched time information as the main image information. Synthesized display. If a plurality of pieces of sub-image information are stored, the sub-image information composited and displayed on the main image information is sequentially changed over time.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of an embodiment of the device of the present invention.

Reference numeral 1 is a display such as a CRT or liquid crystal panel, and 2 is a control circuit for controlling the entire apparatus. The control circuit 2 controls the synthesis of a plurality of image information.

3 receives an NTSC video signal,
An external image input circuit as a main image input means for taking in image information based on an input video signal, and 4 are image storage circuits as sub-image storage means for storing a plurality of image information together with corresponding time information. Reference numeral 5 is an image combination for displaying the image information from the external image input circuit 3, the image information from the image storage circuit 4, or the image information from an image source (not shown) under the control of the control circuit 2 or for displaying them independently. Circuit.

Reference numeral 6 is an input circuit as an input means such as a keyboard or switch panel, 7 is a timer as a time measuring means for starting time measurement by operating the input circuit 6, and resetting is performed by control of the control circuit 2. ..

Reference numeral 8 is a comparison circuit for comparing the time information stored in the image storage circuit 4 in correspondence with the image information with the time measured by the timer 7 to detect the coincidence.

In such an apparatus, when the images are not combined, the control circuit 2 controls the image information selected from the image combining circuit 5 to be directly output to the display 1 for display.

When the images are combined and displayed, the image source to be combined is selected by operating the input circuit 6 and the control circuit 2 is instructed. At this time, the relative position of both images and the combined state (overlay or screen division) are also designated.

Now, assume that the image input to the external image input circuit 3 and the image stored in the image storage circuit 4 are combined.

The control circuit 2 reads out the image information which is the initial screen at the time of composition from the image storage circuit 4, reads out the image information, combines the image information from the external image input circuit 3 with the image composition circuit 5, and displays it on the display 1. The initial screen at the time of composition is displayed (see FIG. 2A). Since the video signal is continuously input to the external image input circuit 3 and the image information based on the video signal is also continuously output, the image information from the external image input circuit 3 is displayed on the display screen of the display 1. The part is displayed as a movie. Further, the time information stored in association with the selected series of image information is stored in the image storage circuit 4.
Is supplied to the comparison circuit 8 and the timer 7 is reset.

In this state, when the input circuit 6 is operated to start the timer 7, the timer 7 starts measuring time. The comparison circuit 8 compares the time (time information) input from the timer 7 and the time information input from the image storage circuit 4, which are sequentially input, and if they match, the control circuit indicates that they match with the time information. 2 to transmit. In response to the matching of the time information of both, the control circuit 2 causes the image storage circuit 4 to output the image information corresponding to the matched time information from the image storage circuit 4. Then, in the image synthesizing circuit 5, the newly read image storage circuit 4 is read.
2 and the image information from the external image input circuit 3 are combined and output to the display 1 for display (FIG. 2).
(See B).

Thereafter, when the comparison circuit 8 detects that the time (time information) from the timer 7 and the time information input from the image storage circuit 4 match, the control circuit 2 similarly outputs an image corresponding to the time information. Information is output from the image storage circuit 4 to the image synthesizing circuit 5, and the image synthesizing circuit 5 causes the external image input circuit 3 to output.
It is displayed on the display 1 after being combined with the image information from (1) (see FIG. 2C).

For example, a plurality of image information indicating the elapsed time by increasing the scale amount with time is stored in the image storage circuit 4 together with the corresponding time information, and the NTSC video signal input to the external image input circuit 3 is stored. In a time competition or a time-limited competition, the image information from the external image input circuit 3 is combined with the image information stored in the image storage circuit 4 according to the time measured by the timer 7. If it is shown (FIG. 2), the image has very significant information added thereto.

[0020]

As is apparent from the above description, the present invention stores image information in association with time information,
When this image information is combined and displayed, it is possible to provide an image in which a very significant information is added by including a temporal element in the image to be combined and displayed by combining and displaying in accordance with the time measured by the timer.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of a device of the present invention.

FIG. 2 is a diagram showing a display example according to the device of the present invention.

[Explanation of symbols]

 1 Display 2 Control Circuit (Control Means) 3 External Image Input Circuit (Main Image Input Means) 4 Image Storage Circuit (Sub-Image Storage Means) 5 Image Compositing Circuit 6 Input Circuit (Input Means) 7 Timer (Timekeeping Means) 8 Comparison Circuit (Comparison means)

Claims (1)

[Claims] 1. An image display device for synthesizing and displaying main image information input from a main image input unit and other image information, and a sub-image information storing sub-image information and time information corresponding to the sub-image information. An image storage means, a time measuring means for measuring time,
An input means for giving a timing to start measuring to the time measuring means; a comparing means for comparing the time information stored in the sub-image storing means with the time measured by the time measuring means to detect coincidence; and the comparing means. When the match is detected in step 1, the image display device is provided with a control unit that uses the sub-image information corresponding to the match time information as image information to be combined with the main image information.