JPH09200686A - Moving picture synthesizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide one piece of synthetic picture by synthesizing plural images consisting of a moving picture. SOLUTION: With the 1st image data as reference data, a moving picture difference discriminating part 5 discriminates difference concerning the respective RGB of n-th image data and a moving picture difference synthesization processing part 9 synthesizes the difference with the 1st image signal. A moving picture difference edge discriminating part 6 discriminates whether the differential image is an edge or not and when it is an edge image, an edge emphasis filter 7 emphasizes the difference.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving picture synthesizing apparatus for synthesizing a plurality of images constituting a moving picture to obtain one composite picture.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. 63-9379 proposes a method of extracting an image signal of one frame or one field forming a moving image as one unit image as a still image.

[0003]

However, in the above-mentioned conventional method, one frame or one field of the image signal forming a moving image is extracted as a still image, so that the change in the moving image cannot be obtained as one combined image. There is a problem.

In view of the above-mentioned conventional problems, it is an object of the present invention to provide a moving image combined color image forming apparatus capable of combining a plurality of images forming a moving image to obtain one combined image.

[0005]

To achieve the above object, the present invention provides a difference extracting means for extracting a difference between a plurality of image signals forming a moving image with respect to a first image signal or a difference before and after the plurality of image signals. And a synthesizing means for synthesizing the image of the difference extracted by the difference extracting means with the first image signal.

Further, it is characterized in that it is judged whether or not the image of the difference extracted by the difference extracting means is an edge, and if the image is an edge image, it is emphasized and combined with the first image signal.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram showing an embodiment of a moving image composite color image forming apparatus according to the present invention, FIG. 2 is a flow chart for explaining processing of the moving image composite color image forming apparatus of FIG. 1, and FIG. FIG. 4 is an explanatory diagram showing an example, FIG. 4 is an explanatory diagram showing processing of the moving image input data conversion unit of FIG. 1, FIG. 5 is an explanatory diagram showing moving image data recorded on the recording medium of FIG. 1, and FIG. 6 is recording of FIG. 7 is an explanatory view showing image data transferred from the medium to the moving image difference determination unit, FIG.
1 is an explanatory diagram showing the processing of the moving image difference determination unit of FIG. 1, FIG. 8 is an explanatory diagram showing the processing of the moving image difference edge determination unit of FIG. 1, and FIG. 9 is an explanatory diagram showing the processing of the edge enhancement filter of FIG. 10
FIG. 3 is an explanatory diagram showing the processing of the moving picture composition processing unit in FIG. 1.

In FIG. 1, a moving image device (for example, a personal computer, hereinafter referred to as a "personal computer") 1 has a time, interval and size designated after inputting a moving image into a recording medium 4 via an input unit 2. When receiving the input start signal, a series of moving image signals are output as a one-dimensional RGB digital signal. Video input data converter 3
The dimensional RGB system digital signal is converted into a two-dimensional RGB system digital signal based on the input size designated via the input unit 2 and transferred to the recording medium 4. In this case, the recording medium 4 has an input size (header) and a capacity sufficient to record a two-dimensional RGB digital signal, and records in order of input.

The moving image difference determination section 5 has a frame memory for one sheet, and this frame memory has an input size (header).
And has a capacity to store RGB data of A3 size or more. In this frame memory, the image data first recorded as moving image data in the recording medium 4 is transferred and stored as an output image, and the moving image difference determination unit 5 is recorded as the nth moving image data in the recording medium 4. When the image data is input as composite data, the difference is determined for each of RGB using the first image data as reference data.

Next, the moving image difference edge determination unit 6 determines the edge of the difference as follows based on the difference determined by the moving image difference determination unit 5. First, when it is determined that the center pixel of interest in the block of 3 × 3 pixels is the difference, the surrounding eight data are read from the first reference data and the n-th data and each of them is read in the same manner as the moving image difference determination unit 5. Pixels are compared, and if even one of the eight data does not determine the difference, the pixel of interest is determined to be the edge of the difference.

The edge enhancement filter 7 is composed of a matrix of 3 × 3 pixels similarly to the moving image difference edge determining unit 6, and the pixel of interest determined by the moving image difference edge determining unit 6 as a difference edge and five surrounding pixels. The value of the pixel of interest is emphasized by multiplying the value of by a coefficient. The moving image difference extraction unit 8 extracts the difference emphasized by the edge enhancement filter 7 for the pixel determined to be the difference edge by the moving image difference edge determination unit 6, and the moving image difference determination unit 5 for the pixel determined not to be the edge. The difference determined by is extracted. The moving image difference combination processing unit 9 combines the difference extracted by the moving image difference extraction unit 8 by fitting it into the position of the corresponding pixel of the first image data stored in the frame memory of the moving image difference determination unit 5. .

As described above, with respect to the series of image data recorded on the recording medium 4, the moving image difference determination, the moving image difference edge determination, the edge emphasis, the moving image difference are performed with the second data, the third data to the first data as a reference. Each process of extraction and moving image difference synthesis is performed, and one image data is created on a frame memory by a two-dimensional RGB system digital signal and output to the color image recording device 10. The color image recording apparatus 10 prints out this one composite image on a sheet.

Next, the flow of the above processing will be described with reference to FIG. When the input time, the interval, and the size of the moving image are designated, first, the end of the series of moving image data is confirmed (step 201), and when the input of the series of moving image data to the recording medium 4 is not completed, The one-dimensional moving image data is read from the personal computer 1 (step 202), converted into two-dimensional moving image data (step 203), and input to the recording medium 4 (step 204). Is recorded (step 205).

When the end of the series of moving image data is confirmed (step 201) and the input of the series of moving image data to the recording medium 4 is completed, the first image data is recorded in the frame memory in the moving image difference determining section 5. Yes (step 206)
~ 209). In this case, since there is no previous image data, the difference is not determined (cannot be determined). Then 2
The pixel of interest of the second image data and the pixel of the first image data corresponding to the pixel position are read to determine the difference (steps 210 to 215). Then, when the difference is determined, the difference between the surrounding 8 pixels is determined (steps 216 to 219), and when the difference between the target pixel and the surrounding 8 pixels is determined, edge enhancement processing is performed (step 2
21) and fit the difference into the pixel (step 22).
2).

After that, the same process is performed up to the last image data to determine the difference, and when a moving object is determined, the edge is emphasized and fitted, one composite image data is created, and this image data is stored as a color image. It is taken into the apparatus 10 and one hard copy is created (steps 223 and 224).

Next, a specific operation will be described with reference to FIGS. For example, the personal computer 1 is windows from the outside
(Trademark of Microsoft Corporation, USA) Vertical 500 * Horizontal 5
When a command to output a 00 pixel size for 60 seconds at intervals of 10 seconds is received, vertical 500 * as shown in FIGS.
One-dimensional RGB data of horizontal 500 pixel size, together with size data, 0 seconds later (d0), 10 seconds later (d1), 20
Seconds later (d2), 30 seconds later (d3), 40 seconds later (d4),
After 50 seconds (d5) and 60 seconds (d6), the data is output to the moving image input data conversion unit 3. FIG. 3A shows a moving image of a moving object (month) moving over a stationary object (mountain) over time, and in this example, the first image signal (or image signal) at the pixel position of the stationary object (mountain). Difference) is “0”, and the difference appears at the pixel position of the moving object (month).

The moving image input data conversion unit 3 uses this one-dimensional R
Based on the size data, the GB data is converted into two-dimensional RGB data as shown in FIG. 4, and the image data d0 to d6 are recorded on the recording medium 4 together with the size data as shown in FIG. The moving image difference determination unit 5 first loads the data d0 after 0 seconds into the internal frame memory together with the size data as shown in FIG. Then, as shown in FIG. 7, data d1
~ D6 are sequentially loaded into the internal frame memory together with the size data, and vertical 500 * based on the data d0 after 0 seconds.
It is determined whether or not there is a difference for each of the horizontal 500 pixels.

Next, when the moving image difference edge determining unit 6 determines that the 18th pixel on the 55th line has a difference as shown in FIG. 8 for example, the moving image difference edge determining unit 6 has 8 pixels around the pixel of interest. , That is, the 17, 18 and 19th pixels on the 54th and 56th lines and the 17th on the 55th line,
If even one of the 19th pixels does not determine the difference, the pixel of interest is determined to be the edge of the difference.

The edge emphasis filter 7 emphasizes and extracts the difference of the pixel of interest with a coefficient as shown in FIG. 9 when it is judged to be an edge, and extracts the difference as it is when it is judged not to be an edge. . The moving image composition processing unit 9 is shown in FIG.
As shown in 0, the first image data is combined with the difference data to be combined, and after 20 seconds (d2), 3
0 seconds later (d3), 40 seconds later (d4), 50 seconds later (d
5) After 60 seconds (d6), the same process is performed to obtain a single composite image in which the moving object (moon) whose edge is emphasized moves on the stationary object (mountain).

[0020]

As described above, according to the present invention, the difference between a plurality of image signals forming a moving image with respect to the first image signal or the difference before and after the plurality of image signals is extracted, and the difference image is first extracted. Since the image signals are combined, a plurality of images forming a moving image can be combined to obtain one combined image.

Further, it is possible to emphasize the change of the moving object by determining whether or not the image of the difference is an edge, and emphasizing in the case of the edge image and combining with the first image signal.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a moving image composite color image forming apparatus according to the present invention.

FIG. 2 is a flowchart for explaining a process of the moving image composite color image forming apparatus of FIG.

FIG. 3 is an explanatory diagram showing an example of input moving image data.

FIG. 4 is an explanatory diagram showing a process of a moving image input data conversion unit in FIG.

5 is an explanatory diagram showing moving image data recorded on the recording medium of FIG. 1. FIG.

6 is an explanatory diagram showing image data transferred from the recording medium of FIG. 1 to a moving image difference determination unit.

FIG. 7 is an explanatory diagram showing a process of a moving image difference determination unit in FIG. 1.

8 is an explanatory diagram showing a process of a moving image difference edge determination unit in FIG. 1. FIG.

9 is an explanatory diagram showing a process of the edge enhancement filter shown in FIG. 1. FIG.

10 is an explanatory diagram showing a process of a moving image composition processing unit in FIG. 1. FIG.

[Explanation of symbols]

 5 Video Difference Determination Unit 6 Video Difference Edge Determination Unit 7 Edge Enhancement Filter 8 Video Difference Extraction Unit 9 Video Difference Synthesis Processing Unit

Claims (2)

[Claims] 1. A difference extracting means for extracting a difference between a plurality of image signals forming a moving image with respect to a first image signal or a difference before and after the plurality of image signals, and a difference image extracted by the difference extracting means is first displayed. Movie synthesizing device having a synthesizing means for synthesizing to the image signal of. 2. The method according to claim 1, wherein it is determined whether or not the difference image extracted by the difference extracting means is an edge, and if the image is an edge image, the difference image is emphasized and combined with the first image signal. Video synthesizer.