JPH06205254A - Video recording device - Google Patents

Abstract

PURPOSE:To obtain the video recording device capable of facilitating an animation-like superimposition by providing a memory storing digital data through divisions for plural number of times and a video recorder recording a moving image. CONSTITUTION:A video signal received from a video camera 1 is converted into digital data by an A/D converter 2 and written in a memory by a memory controller 3. The memory is constituted for 128 screens. Then recorded digital data are read by the memory controller 3 and synthesized with a moving image from the video camera 1 by a superimposing circuit 6 and the result is recorded on a video recorder 7. That is, the recording start/stop of the video recorder 7 is controlled simultaneously synchronously with reading of the content of the memory 4 for a prescribed period, then a job of superimposing the data stored in the memory 4 in terms of digital data onto an animation is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording device such as a camera-integrated video recorder capable of superimposing images (hereinafter referred to as "superimpose").

[0002]

2. Description of the Related Art Conventionally, in a video recording apparatus of this type, as a method of adding a special effect to a video image, a video signal is binarized and stored, and the stored signal is superimposed on another video image signal. Is configured to.

[0003]

However, in the above-mentioned conventional apparatus, since the capacity of the memory for storing the binarized signal is small, the number of stored screens is as small as one to four screens. For example, it took a lot of time and effort to produce animation, and the image was distorted. It took time to produce a movie title, and it was difficult to record the title data for the necessary and appropriate length of time.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a video recording apparatus capable of easily superimposing a moving picture.

[0005]

Therefore, the video recording apparatus according to the present invention divides the digital data into a plurality of times and an A / D converter for converting the video signal input from the video camera into digital data. Memory to store
A video recorder for recording a moving image, wherein the digital data stored in the memory is read out and continuously reproduced to record the moving image as a moving image in the video recorder. Is.

[0006]

With the above configuration, for example, a video signal of an image taken by a video camera for producing a moving image title is A
It is input to the / D converter, converted into digital data, divided into a plurality of times, and written and stored in the memory. Then, the digital data stored in the memory can be read and continuously reproduced as a moving image by superimposing it on a video signal of another video image captured by the video camera and recorded on the video recorder.

[0007]

The video recording apparatus according to the present invention will be described below with reference to the embodiments.

FIG. 1 is a block diagram showing the structure of a first embodiment of the present invention, FIG. 2 is an explanatory view common to the memories of the first to fourth embodiments, and FIG. 3 is a view of the first embodiment. It is a flow chart which shows operation.

In FIG. 1, 1 is a video camera, 2 is an A / D converter for converting a video signal into digital data, 3 is a memory controller for controlling the writing or reading of the digital data into a memory, and 4 is the digital data. A memory to be stored, 5 is a microcomputer (hereinafter, referred to as a microcomputer) that controls a memory controller, 6 is a superimposing circuit that superimposes a digital data signal on a moving image signal from a video camera, 7 is a video recorder, Reference numeral 8 is a write switch for instructing writing to the memory.

A video signal input from the video camera 1 is converted into digital data by the A / D converter 2 and written in the memory 4 by the memory controller 3.

As shown in FIG. 2, the contents of the memory are 25
The memory of 6 × 256 (horizontal × vertical) pixels is set as one block, and this corresponds to one screen. From block 1 to block 1
Up to 28, the total memory structure is 128 screens.

By actuating the write switch 8, the microcomputer 5 instructs the memory controller 3 to change the block position and write and read digital data, and the digital data is recorded in the memory 4.

Then, the recorded digital data is read by the memory controller 3, combined with the moving image from the video camera 1 by the superimposing circuit 6, and recorded in the video recorder 7. The microcomputer 5 also instructs and controls the video recorder 7 to start and stop the recording operation.

In the above-mentioned structure, the subject is photographed while moving little by little, and the writing switch 8 is operated to write in the memory 4. The operation at this time is as shown in the flowchart of FIG.

That is, in step S1, the write switch 8
When it is detected that is pressed, the microcomputer 5 instructs the memory controller 3 to write digital data,
When the writing is completed, the number of writing points is increased by 1 (S2, S3). At that time, if the writing to all the memories is completed, the pointer of the memory is set to the block 1 (S4) and the reading start is instructed (S4).
5). At the same time, the microcomputer 5 instructs the video recorder 7 to start recording (S6). The pointer of the memory is increased in a predetermined cycle (S7, S8), and when the reading of all the memories is completed, the recording of the video recorder 7 is stopped (S9). Then, set the memory pointer to the beginning of the memory block (S1
0), and waits again so that digital data can be written from the beginning.

(Second Embodiment) A second embodiment of the present invention will be described with reference to the block diagram of FIG.

In FIG. 4, the parts indicated by the same numbers as in FIG. 1 are the same as or corresponding parts in FIG.

Reference numeral 10 is a recording switch for reading the contents of the memory and recording them on the video recorder. Reference numeral 11 is an Up. Switch, 12 is memory 4
Down. The switch 13 is a Prev. Switch for confirming the recorded contents. It is a switch.

The microcomputer 5 operates the switches to instruct the memory controller 3 to write and read, and to the video recorder 7 to start and stop the recording operation.

The operation of the second embodiment having the above construction will be described with reference to the flow chart shown in FIG.

While moving the subject to be photographed little by little, the write switch 8 is operated to write in the memory 4. First, when it is detected in step S11 that the write switch 8 has been pressed, the microcomputer 5 instructs the memory controller 3 to write digital data (S
12). Next, Up. The point of the memory block is moved by the switch 11 (S13, S14). After that, the write switch 8, Up. The switch 11 is operated to write to the memory 4, and when the writing to all the memories is completed, the memory block 1 is set (S14, S15). Prev. By instructing the memory controller 3 to read the memory blocks from 1 to 128 in a predetermined cycle by the switch 13, the movement of the series of images stored in the memory 4 is verified (S16 to S19). If you don't like the movement, Up. Switch 11, Down.
The point of the memory block is moved there by the switch 12 (S20 to S22), the write switch 8 is operated again to perform writing, and the Prev. Confirmation is performed by the switch 13. When the recording switch 10 is pressed after the image data is confirmed, the microcomputer 5 instructs the memory controller 3 to set the pointer of the memory 4 to the block 1 and start reading (S23, S).
24). At the same time, the microcomputer 5 instructs the video recorder 7 to start recording (S25). The pointer of the memory 4 is increased at a predetermined cycle (S26), and when the reading of all the memories is completed (S2).
7) Then, the recording of the video recorder 7 is stopped (S28).
Then, the pointer of the memory 4 is set to the head of the memory block (S29), and the standby is instructed so that the digital data can be written from the beginning again.

With the configurations and operations of the first and second embodiments described above, control of start and stop of recording in the video recorder 7 is simultaneously performed in synchronization with reading the contents of the memory 4 at a predetermined cycle. By doing so, it is possible to superimpose the data stored in the memory 4 as a digital data on a moving image to easily produce an animation or the like.

For example, as described above, when the memory 4 of 128 blocks is used, it is stored as digital data for 4 seconds and the movement is confirmed. At that time, the strange place of the movement is corrected by rewriting while the data is in the memory 4. The correction at this time can be easily rewritten from the characteristics using the memory 4.
By recording on a video tape after checking the movement, it is possible to create a long animation of 4 seconds or more.

Further, in the conventional animation production by a home-use video recorder, since the frame feed is performed by repeatedly recording and pausing, it is unavoidable that the recording track is disturbed at the joint between the frame and the frame, and the tape is damaged. Alternatively, it is possible to solve the problem that the number of frames to be written becomes 1 frame / several frames, and at the maximum of 1 frame / 1 frame, the animation can be created without damaging the tape.

(Third Embodiment) A third embodiment of the present invention will be described with reference to FIG.

FIG. 6 is a block diagram of the third embodiment.
The same or corresponding parts as those of the first and second embodiments are designated by the same reference numerals, and the duplicate description will be omitted.

Reference numeral 14 is a conversion switch for calculating data,
Reference numeral 15 is a recording switch for instructing reading of the memory. The input video signal is converted into digital data by the A / D converter 2 and written in the memory 4 by the memory controller 3.

The contents of the memory are as shown in FIG. 2, and one block is a memory of 256 × 256 (horizontal × vertical) pixels, and this is one screen. From block 1 to block 128, a total of 128 screens are provided. It has a memory configuration.

The microcomputer 5 operates the write switch 8 to instruct the memory controller 3 to change the block position and write digital data, and the digital data is recorded in the memory 4.

The digital data recorded when the recording switch 15 is pressed is read by the memory controller 3 in response to a change in the block position of a predetermined cycle and a digital data read instruction from the microcomputer 5, and the superimposing circuit 6 It is combined with the moving image and recorded in the video recorder 7. The memory 4 is also connected to the microcomputer 5 so that data can be read and written from the microcomputer 5.

The operation of the third embodiment having the above configuration will be described with reference to the flowchart shown in FIG.

When the write switch 8 is pressed, the microcomputer 5
Instructs the memory controller 3 to set the pointer of the memory block to 1, and then writes (S33), and the digital data is stored in the first block of the memory 4. When the conversion switch 9 is pressed, the microcomputer 5 first sets the read pointer to 1 and the write pointer to 2 (S34). The microcomputer 5 reads data from the first block of the memory 4 (S35), processes the data by a predetermined calculation (S36), and writes it in the second block (S37). After that, the read and write pointers are incremented by one (S38). If the writing to the final block of the memory is completed in step 39, the operation is ended, and if not, the data is read, operated and written again.

After the writing to all the memories is completed, the recording switch 15 is pressed to cause the microcomputer 5 to instruct the memory controller 3 to change the block position and read the digital data at a predetermined cycle (S40).
~ S43).

The digital data read by the memory controller 3 is superimposed on the moving image input from the video camera 1 by the superimposing circuit 6 and recorded in the video recorder 7.

Any operation may be performed. For example, the read data is converted and moved so as to move horizontally by 2 pixels, and is written. After all the memories are operated and written, the data is continuously read. If you do, the effect of scrolling horizontally is obtained.

With the configuration and operation of the third embodiment described above,
For example, when trying to obtain a moving image title, in the conventional processing method, each processing time has to be performed within one frame, so the hardware for processing it must be fast and large-scale. However, in the present embodiment, as described above, based on the digital data written in the memory 4, the data obtained by the calculation is recorded in the memory 4 respectively, and the data is continuously read out. Even if the conversion takes a long time, there is no influence when reading the recorded moving image title, so that a moving title signal can be easily obtained.

Further, the result of the operation is written in the memory,
By using the result as the basis of the calculation, the conversion can be performed by one calculation.

(Fourth Embodiment) A fourth embodiment of the present invention will be described with reference to FIGS.

FIG. 8 is a block diagram of the fourth embodiment, in which the same or corresponding parts as in the above-mentioned embodiment are designated by the same reference numerals,
Overlapping description is omitted.

Reference numeral 16 is a recording switch for instructing the reading of the memory. The input video signal is converted into digital data by the A / D converter 2 and written in the memory 4 by the memory controller 3.

The contents of the memory are as shown in FIG. 2, and one block is a memory of 256 × 256 (horizontal × vertical) pixels, and this is one screen. From block 1 to block 128, a total of 128 screens are provided. It has a memory configuration.

The microcomputer 5 records a moving image in the memory 4 by instructing the memory controller 3 to change the block position at a predetermined cycle.

The recorded moving image is read by the memory controller 3, combined with the moving image input from the video camera 1 by the superimposing circuit 6 and then recorded in the video recorder 7.

In the above structure, the microcomputer 5 starts the recording of digital data from the first block of the memory block to the memory controller 3 when the write switch 8 is pressed in step S51 as shown in the flowchart of FIG. Instructed (S52, S53), the memory blocks are sequentially moved at a predetermined cycle (S5).
4). Then, when the process reaches block 128, the process returns to block 1 (S55, S58, S53), and blocks 1 to 128 are repeated. After that, when the write switch 8 is released in step S58, the microcomputer 5 stops recording, then the block recorded last is the final block, and the block immediately after that is the first block (S60, S61). ). If the time during which the write switch 8 is pressed is shorter than the time when the write switch 8 reaches the last memory block, the first block is set to one block (S62).

When the recording switch 16 is pressed, the microcomputer 5 instructs the memory controller 3 to read the digital data from the first block from the memory 4 (S
64, S64), and instructs to move the pointer of the block to be read at a predetermined cycle (S65 to S6).
8). The read data is combined with the moving image input from the video camera 1 by the superimposing circuit 6 and recorded in the video recorder 7. When the last block is read, the microcomputer 5 instructs the memory controller 3 to stop the reading.

In the fourth embodiment having the above configuration and operation, when the write switch 8 is pressed, the memory controller 3 is instructed to start recording digital data and the memory blocks are increased in a predetermined cycle. Then, when it reaches the last block, it returns to the first block, and continues to store digital data until the write switch 8 is released, while repeating the following. Then, by reading the digital data in a predetermined cycle and superimposing it on the moving image, a moving title signal can be easily obtained.

For example, in a golf swing or the like, the writing switch 8 is pushed before starting to swing and released at the end of swinging, so that data can be accurately obtained without being aware of the length of memory time.

[0048]

As described above, according to the present invention, for example, a video signal of an image taken by a video camera for producing a moving image title is input to an A / D converter and converted into digital data. Then, the data is divided into a plurality of times and written and stored in the memory. Then, while reading the digital data stored in the memory and continuously playing back it, you can superimpose it on the video signal of another video taken by the video camera as a moving image and record it on the video recorder,
It is possible to provide a video recording device capable of easily superimposing a moving image.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment.

FIG. 2 is an explanatory diagram of each memory according to the first to fourth embodiments.

FIG. 3 is a flowchart of the first embodiment.

FIG. 4 is a block diagram showing a configuration of a second embodiment.

FIG. 5 is a flowchart of a second embodiment.

FIG. 6 is a block diagram showing a configuration of a third exemplary embodiment.

FIG. 7 is a flowchart of a third embodiment.

FIG. 8 is a block diagram of a fourth embodiment.

FIG. 9 is a flowchart of a fourth embodiment.

[Explanation of symbols]

 1 Video Camera 2 A / D Converter 3 Memory Controller 4 Memory 5 Microcomputer 6 Superimpose Circuit 7 Video Recorder 8 Write Switch 10 Recording Switch 11 Up. Switch 12 Down. Switch 13 Prev. Switch 14 Conversion switch 15 Recording switch 16 Recording switch

Claims (7)

[Claims] 1. An A / D converter for converting a video signal input from a video camera into digital data, a memory for storing digital data divided into a plurality of times, and a video recorder for recording a moving image. A video recording apparatus comprising: the digital data stored in the memory, read out continuously, and recorded as a moving image in the video recorder. 2. The video recording apparatus according to claim 1, wherein the memory is configured to store a plurality of digital data, and the stored digital data is automatically read at a predetermined cycle. 3. The video recording apparatus according to claim 1 or 2, wherein the video recording device is configured to record the video data in the video recorder only during the digital data read period in synchronization with the reading of the digital data from the memory. 4. The video recording apparatus according to claim 1, wherein one stored digital data is converted by calculation and stored in one or more other memories. 5. The memory for writing digital data to the memory is automatically and continuously performed at a predetermined cycle only while the switch is operated, and when the digital data is written to the end of the memory, the memory is again written from the beginning of the memory. It is constituted so that it may be constituted.
The video recording device described. 6. The writing of digital data to the memory is stopped by deactivating a switch, and the position of the last written and stored memory is set at the last point.
The position of the memory one after this is set as the first point, and the reading of the digital data stored in the memory automatically and continuously from the set first point to the last point at a predetermined cycle. 6. The video recording device according to claim 1, wherein the video recording device is configured as described above. 7. When the writing of digital data to the memory is less than the total storage capacity of the memory, the position of the first written memory is set as the first point. , 5 or 6, the video recording device.