WO1997030548A1

WO1997030548A1 - Slow reproducing device

Info

Publication number: WO1997030548A1
Application number: PCT/JP1997/000423
Authority: WO
Inventors: Hirotsugu Murashima; Hideki Ishibashi; Kenichi Kido; Masahiko Tomikawa; Mitsuhiro Nishiguchi
Original assignee: Sanyo Electric Co., Ltd.
Priority date: 1996-02-19
Filing date: 1997-02-17
Publication date: 1997-08-21
Also published as: JPH09224221A

Abstract

A slow reproducing device which reproduces slow-motion pictures based on original pictures composed of N (N is an integer of 2 or more) child pictures taken at a high-speed. The slow reproducing device is provided with a VTR reproducing circuit (2) which reproduces original pictures from a magnetic tape (1) at a speed which is 1/L (L is an integer of N or more) the speed of the normal speed, a frame memory (3) which stores video data of one frame, and a memory control circuit (4) which writes the video data of the original pictures obtained from the circuit (2) and reads the video data of the original pictures from the memory (3), arranges the video data constituting each child picture in order of shooting time in a period which is L times as long as the field period, and output the video data.

Description

Specification

Slow reproduction device Technical field

The present invention relates to a slot playback device for magnetic recording and recording II such as a video tape recorder (VTR). Background art

Hitherto, for the purpose of slow image processing, there has been proposed a high-speed device (S: N = 2 or more) capable of high-speed operation (N: 2 or more) (JP-A-7-212657 [H04N5 / 335]). High If the device is converted to a digital VTR, the original image composed by combining N images ¾ ^ in one cycle of the field cycle (1/60 seconds) on one screen on the magnetic tape \ It will be described in the field cycle.

For example, when a 4x high-speed shooting is performed, as shown in Fig. 2 (a), four images are obtained at a period of 1 to 4 (1/2 40 seconds) of the fine-red period. The images are arranged in a sub-screen obtained by dividing one screen into four parts as shown in FIG. 3B, and are magnetically taped as one original image.

Therefore, if the magnetic tape is squeezed with a normal 1/4 it 通常 by a VTR equipped with a normal slow function, the image of the 1! Image for one field is shown in FIG. 2 (b). After the data is stored in the memory, the original data of the memory card is read at the field cycle.

4 Read and output repeatedly. Then, the 赚 data of the original image is updated at a period four times as long as the field period (1Z15 seconds). Therefore, if appropriate processing is applied to the 赚 data of the original image in Fig. 2 (b), a smooth scan in which four sub-pictures are arranged on a single time axis as shown in Fig. 2 (d) A mouth-to-mouth image can be obtained.

However, in FIG. 2 (b), the specific data processing for generating the mouth image shown in FIG. 2 (d) from the T image is not yet clear. That's really good.

An object of the present invention is to clarify the configuration of a slow image display for obtaining an original image obtained by a high speed camera. Disclosure of the invention

The throw device according to the present invention can store an original image from a medium in an ordinary 1 / L (L is difficult to be N or more) image means, and can store at least one screen of B ^ data. The memory means, image data of at least one screen of the original image obtained from the means is written into the memory means, and the video data of the original image is read from the memory means. Data read control means for outputting the video data of the sub-screen along the time axis within a period of L times the normal screen period and outputting it as data of ~ ¾; You.

In this repositioning, the original image (FIG. 2 (b)) is obtained by combining N images (FIG. 2 (a)) on one screen by N times high-speed shooting. ) Force It is recorded at the field period, and the original image can be obtained at a period L times the field period by using the medium at a normal 1 ZL.

After the 赚 data of the original image is once referred to in the memory means (FIG. 2 (c)), the 赚 data of each sub-picture is stored in the memory means for each sub-picture in a predetermined time order (about IB or some time). The data is read out at m and output at the field cycle (Fig. 2 (d)). Are arranged on a single time axis, and ~ ¾ slow reproduction image power s can be obtained.

A field mouth for processing data of the original image in field units, and a mouth mouth for replaying in the forward direction of the time axis is performed by running a magnetic tape in the forward direction. Image means for reproducing the original image from the magnetic tape as usual 1 (L is greater than or equal to N), memory means capable of recording at least one field of «data, and image means Data writing control means for writing the data of the obtained one-field original image to the memory means, and reading out the image data of the original image from the memory means, and the image data which forms each sub-picture in the field period L. It is equipped with data readout control means for queuing itself in the order of the time within the double period and outputting as H data.

In the slot, of the original image of the first field of the two fields constituting one frame, after the signal of the original field of the first field is written to the memory means, the image is composed of N sub-screens for fitT. ! ^ Elephant data is read out in order of time. Next, in the ήίί | β2 field, the video signal of the original image of the second field is written to the memory means, and thereafter, the input data of the two small screens constituting the original image are » They are read out in chronological order of time.

On the other hand, the field of processing the elephant data of the original image in field units! In order to perform playback in the reverse direction of the time axis, the magnetic tape is run in the reverse direction, and the original image is read from the magnetic tape in the normal 1 ZL (L is N or more). Image at the speed of translation !? means, memory means capable of recording at least one field of ^ data, and one field of original image data obtained from the image reproduction means. Write data to memory means Write data and read the image data from the memory means, and write the data constituting each sub-screen within L times the field cycle time. Data to be output as として data of -Data readout control means!

At the position of the mouth, 1 frame is composed of 2 frames.

The 赚 data of the N sub-screens are read out in the order of 時 and 時間. Next, the video signal of the original image of the first field in the tir | S2 field is written to the memory means, and thereafter, when the data of the N sub-pictures constituting the Mi image is transmitted, They are read out in the reverse time order.

Also, it is a frame-to-mouth playback that processes the video data of the original image in frame units, and is a mouth-to-mouth playback for performing playback in the forward direction of the time axis !? In this method, the magnetic tape is moved in the forward direction, and the original image is reproduced from the magnetic tape by the normal 1 / L (L is an image which is reproduced by the singing of N or more). Memory means capable of writing, and »data of one frame of the application image obtained from the image ^ 4 means is written to the memory means. T?贿 data is read out, and 象 ^ elephant data for each field that constitutes each sub-screen are arranged in the order of time in the time L times the field period and output as HI elephant data It is provided with data read control means.

After the input signal of the original image of the two fields constituting one frame is written into the memory means, N sub-pictures constituting the original image of the first field are formed. The surface ele- ment data is read out in the order of 時 ^ time, and subsequently, the ele- ment signals of the N child images composing the original image of the second field are read out in the order of the time of the note.

On the other hand, the frame is a frame unit that processes the data of the original image by frame, and the slot for performing the slot in the reverse direction of the time axis runs on the magnetic tape in the reverse direction. The original image from the magnetic tape to the normal 1 / L (L is greater than N, Raw images! ½ means, memory means capable of storing data for at least one frame, and 原 data for one frame of original image obtained from the image means are written to the memory means. And read out the image data from the memory means, and arrange the input data for each field constituting each sub-screen in the order of time opposite to ^^ hour within L times the field period. And data read control means for outputting as data.

After the signal of the mm image of two buoy nodes constituting the frame is written in the memory means, the N children constituting the | The elephant data of the screen is read out in the order of the time reverse to the ^ if ^ time, and then the elephant signal power of the N child images constituting the original image of the first field is the time opposite to the time Read in order. According to the slot position according to the present invention, based on the original image obtained by the high-speed job, the slot image can be arbitrarily set in one direction or the right direction along the time axis. It is possible. BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 is a block diagram showing the structure of the slot according to the invention of the pot f. Fig. 2 is a diagram illustrating the basic principle of the slot installation according to the invention of the pot. Diagram illustrating the operation of the forward mouth, FIG. 4 illustrates the operation of the reverse mouth playback at 1/4 speed, and FIG. FIG. 6 is a diagram for explaining the operation of the reverse direction port by the method of FIG. 16, FIG. 7 is a diagram showing a flow chart showing the first half of the operation of the slow playback device shown in FIG. 1, and FIG. FIG. 8 is a diagram showing a port chart representing the latter half of the operation, and FIG. 9 is a diagram showing a time chart representing device operation in the 1/6 forward field port mode. FIG. Is 1 Z 6 FIG. 11 is a time chart showing the device operation in the Hi-direction frame-to-mouth playback mode. FIG. 11 is a diagram showing the time chart representing the device operation in the 1/6 reverse field mouth-to-mouth playback mode. FIG. 12 is a diagram showing a time chart showing the device operation in the 16 reverse frame slow reproduction mode. BEST MODE FOR CARRYING OUT THE INVENTION

The mouth-to-mouth regeneration device of this embodiment is a high-frequency device that inflates with 1 ”通常 times as large as shown in FIGS. 2 (a) and 2 (b). Japanese Patent Application Laid-Open No. 7-212657) and a conventional VTR¾ circuit having a mouth-to-mouth playback function for repeatedly outputting data for one field at a field cycle (L is more than ¾¾S¾¾). The structure is as shown in Fig. 1. The magnetic tape (1) has an original image composed of a plurality of small screens (Fig. 2 (b), which has been processed by a high-speed device. The H-elevation data is reproduced by the VTR circuit (2) having the {β-slow} function, and then written to the frame memory (3) while maintaining the arrangement of the sub-screens (Fig. 2 (c;)). Subsequently, by controlling the reading of data from the frame memory (3), video data of a series of mouth-reproduced images (FIG. 2 (d)) is generated.

It should be noted that the slow ^ ftt ^ device of the present invention is a two-view data processing that processes a video data of an original image in field units and a frame data process in which original data is processed in frame units. Is possible. In addition, it is possible to perform two throws, one in the direction of 鄉 B and the other in the direction of 行なう B, and in the direction of 時 and the time in the reverse direction. .

Here, the principle of the slow repositioning of the present invention will be described by taking, as an example, an operation in a case where the slow replay is performed at a normal 1/4 speed and a case in which the slow replay is performed at a normal 1/6 speed. This will be described specifically.

1/4 l ^ field throw!

number 3

High Depending on the device, images A, B, C, D, A ',, C', D 'can be used as sub-screens at 1/4 cycle (1Z240 seconds) of the field cycle (160 seconds) … Is generated, and these images are the [^ elephant data of the original images f 1, f 2 · · 'which are obtained by combining four images in one field period on one screen as shown in Fig. 3 (b). As a result, a magnetic tape is used at the field cycle.

When performing forward field mouth-to-mouth playback at normal quarter speed, the original image is read by a normal quarter boat by intermittently running the magnetic tape one direction. At this time, from the VTR circuit (2), the く data of one original image f1 is output 4 [repetitively] in the field period as shown in FIG. 3 (c), and thereafter, the subsequent original image is similarly output. The I »data of f 2 will be output four times in the field cycle.

In this process, first, after the elephant data of one original image f1 is written to a predetermined address of the frame memory (3), reading of the data from the frame memory (3) is controlled. 3 As shown in Fig. 3 (d), the sub-pictures are read out in the field cycle in the time order (A, B, C, D) at the time of the expansion of the transport data. Then, in the last data read cycle, after the 赚 data of the undesired original image f2 is written to a predetermined address of the frame memory (3), the reading of data from the frame memory (3) is controlled. The video data constituting each sub-screen is read out in the order of the time of shooting (A ', B',, D ') at the field cycle. This results in | 1 fat-oriented slow-playback images with a 1/4 normal contribution. 1-4 Forward frame playback

When performing forward frame-to-frame playback at the normal 14 speed, the original image is captured at the normal 1/4 scale by running the magnetic tape intermittently in the WE ^ direction. At this time, the VT R¾t circuit (2) outputs the elephant data S of the two original images f 1 and f 2 continuously within one frame period, ^ H] in FIG. 3 (e). This operation is returned in the frame period.

In this process, first, the! ^ Elephant data of the original image f1 of the first field is written into a predetermined address of the frame memory (3), and then the image of the ■ image f2 of the second field Data is written to a predetermined address in the frame memory (3). Then, by controlling the reading of data from the frame memory (3), the video data constituting each sub-screen is arranged in time order (A, B, C, D) as shown in FIG. 3 (f). , Α ', B', C '· · · ·) read at the field period. As a result, a 1/4 image of the H ir direction can be obtained.

1 no 4 reverse field slow playback

When performing reverse field-to-mouth playback at the normal 14 speed, the original image is displayed at the normal 14 speed by intermittently running the magnetic tape in the reverse direction. At this time, the VTR circuit (2) outputs the video data of the original image f2 of the second field shown in Fig. 4 (a) repeatedly four times in the field cycle, and then outputs the data of the first field. The (^ data of the original image f 1 is output repeatedly four times in the field cycle. In this process, first, the data of the image f 2 of the second field is stored in the frame memory (3 ), The reading of data from the frame memory (3) is controlled to form each sub-screen as shown in FIG. 4 (b). Are read in the reverse time order (and C ',', ') at the field period. Then, in the last data read cycle, after the video data of the original image f1 of the first field is written to a predetermined address of the frame memory (3), the reading of data from the frame memory (3) is controlled. , Data is read out at the field interval in the order of D and C (D, C, B, A). As a result, a mouth image in the reverse direction due to the normal 1/4 is obtained.

1 Z4 Reverse frame slow re

When performing reverse frame-to-frame playback at the normal 1/4 speed, the original image is displayed at the normal 1 / th of a speed by intermittently running the magnetic tape in the reverse direction. At this time, as shown in FIG. 4 (c), the VTR¾¾ circuit (2) outputs t ^ data of the two original images f 1 and f 2 within one frame period, and outputs The operation is repeated 4 [frame cycles].

In this process, first, the I data of the original image f1 of the first field is written to a predetermined address of the frame memory (3), and then the 赚 data of the original image f2 of the second field is freed. Is written to a predetermined address of the memory (3). Then, by controlling the reading of data from the frame memory (3), the video data constituting each sub-picture is displayed in the order of time and time (D ', C') as shown in FIG. 4 (d). , B ', A', D, and C "') at the field period, thereby obtaining a reverse playback image in the reverse direction by the normal 1/4.

1-6 forward field slot playback

In Fig. 5 (a), at ^ tf, 1 / of the field period (1/60 second) In the period of 4 (1/2 40 seconds), the images A, B, C, D, A ', B', C ', D', etc., which are the sub-screens, are displayed. These images are shown in Fig. 5 ( As shown in b), 赚 data of the original images f 1, f 2… composed of four images within one field period on one screen are applied to the magnetic tape at field intervals!

When performing forward field-to-mouth playback at 1/6 the normal speed, the image is formed at 1/6 the normal speed by running the magnetic tape intermittently toward the fat side. At this time, the VTR circuit (2) outputs the data of one original image f1 as shown in Fig. 5 (c) by returning 6 times in the field cycle. Then, the elephant data of the original image f 2 of the fiber is output repeatedly six times in the field cycle.

In this process, first, »data of one original image f1 is written to a predetermined address of the frame memory (3), and then reading of data from the frame memory (3) is controlled. 5 Each sub-screen is composed as shown in Fig. 5 (e). «Data strength S, if ^ Niji-ji's chronological order, and two sub-screens A and C of Miyoshi. Ι, Α, A, B, C, C, D) with the repetition, are read out in the field cycle. In the last data readout cycle, the following elephant data of the subsequent original image f2 is freed. After writing to a predetermined address of the memory 3, the reading of data from the frame memory 3 is controlled to form each sub-picture. And for any two sub-screens, with two repetitions / dim A ', A', B ', and C, D' ), The data is read out in the field cycle.

The image of ι ¾ · direction by ¾g is obtained.

1/6 forward frame playback

When performing frame-to-frame playback in the direction around I at 1/6 the normal speed, insert a magnetic tape Intermittently running in the direction of HIM ^, the original image is displayed at! At this time, from the VTR circuit (2), as shown in FIG. 5 (d), "f! D", two fl ^ ίΐΗ images fl and f2 « This operation is returned four times in the frame period.

In this process, first, after the I data of the original image f1 in the first field is written to a predetermined address of the frame memory (3), the video data of the original image f2 in the second field is stored in the frame memory (3). It is written to the specified address in 3). Then, by controlling the reading of data from the frame memory (3), the time sequence of the image data constituting each sub-screen is as shown in FIG. WDi (A, A, B, C, C, D, A ',, A',, C ', C…;) with two repetitions to two sub-screens A and C Is read in the field cycle. As a result, a single mouth image in the K * direction according to the normal 16 is obtained.

1 no 6 Reverse field slow playback

When performing reverse field mouth-to-mouth playback at the normal 1/6 speed, the original image is displayed at the normal 1/6 speed by running the magnetic tape intermittently in the reverse direction. At this time, from the VTR circuit (2), the data of the original image f2 of the second field, which is shown in Fig. 6 (a), was returned four times in the field cycle and output. Thereafter, the data of the original image f 1 of the first file is output after being manipulated four times in the field cycle. In this process, first, after the data of the image f2 of the second field is written to a predetermined address of the frame memory (3), the reading of the data from the frame memory (3) is controlled. Thus, each sub-screen is composed as shown in Fig. 6 (b) .The data is in the reverse time order to the inflated time, and is repeated twice for any two sub-screens rr and Β '. It is read at the field period by the II dictionary (D ', D', C ', Β', B ', A') accompanied by a letter. Then, in the last data read cycle, after the data of the original image f 1 of the first file is written to a predetermined address of the frame memory (3), the data is read from the frame memory (3). In the same way, each sub-screen is composed of two sub-screens in the order of 力 data power and 時間 in time order, and it involves two repetitions; Read by ^ (D, D, C, B, B, A) at the field period. As a result, a slow slot image in the reverse direction at a normal speed of 1 Z6 is obtained.

1 Z 6 Reverse frame playback

When performing reverse frame-to-frame playback at 1/6 the normal speed, the magnetic tape is intermittently driven in the reverse direction to produce an image at the normal 1 Z6 speed. At this time, the video data of the two original images f 1 and f 2 are continuously output from the VTR circuit (2) within one frame period as shown in FIG. This operation is repeated four times in the frame cycle.

In this process, first, the «I data of the original image f 1 of the first builder is written to a predetermined address of the frame memory (3), and then the« m data of the original image ί 2 of the second fin It is written to a predetermined address in the frame memory (3). Then, by controlling the reading of data from the frame memory (3), the time order is reverse to that of the video data constituting each sub-picture as shown in FIG. 6 (d). «¾i (D ', D', C ', B', Β ', A' ···) with two repetitions and two repetitions It is read out periodically. In this way, a slow replay image in the reverse direction at a normal 1 Z6 speed is obtained. Time, play circuit operation

The operation in each of the above modes is realized by the circuit shown in FIG.

The signal detected from the magnetic tape (1) is sent to the VTR 2) and the original image data output from the VTR 2) is connected to one input terminal a of the switch (6), It is connected to the input terminal b of the switch (6) via the frame memory (3).

Further, a frame update signal, an output field discrimination signal, and a direct synchronizing signal, which will be described later, output from the VTR circuit (2) are supplied to the memory control circuit (4). 4) Write the original playback image data in the frame memory (3)! It controls the protrusion.

In addition, a system control circuit (5) that controls the overall operation of the entire circuit is provided, and the system control circuit (5) operates in the operation mode for the VTR regeneration circuit (2) and the memory control circuit (4). with the signal supplied, supplied travel command signal for controlling the running of the magnetic tape (1) is to tape running system, the switching signal for switching the Suitsuchi ⁽⁶⁾ to the control pin of Suitsuchi (6) Have been.

The switch (6) is set to the a side in the normal mode, and the original image data obtained from the VTR times g§ (2) is output to the image display device as it is. On the other hand, when the slow mode is set to 51, the switch (6) is switched from the a side to the b side, and the mouth image data read from the frame memory (3) is output to the image display device.

Hereinafter, the circuit operation in the slow ftt mode for N = 4 and L = 6 will be described with reference to FIGS. 7 to 12.

1 no 6 Forward field throw: In the case of ¾, the VTR regeneration circuit The original playback image data, vertical synchronization signal, frame update signal, and output field discrimination signal shown in Fig. (3) ((:) (01) are output. The VTR circuit (2) outputs the original data shown in Fig. 1. Image data, a vertical synchronization signal, a frame update signal, and an output field discrimination signal. In the case of field slow playback, the VTR playback circuit (2) outputs the original playback image data, vertical synchronization signal, frame update code, and output figure shown in ( _a ), (b), (c), and (d), respectively. In addition, the VTR circuit (2) of the 16 frames in the backward direction outputs the original data shown in Fig. 1 ^ Fig.! ^^ Image data, vertical synchronization A signal, a frame update signal, and an output field discrimination signal are output.

In each case, the vertical synchronizing signal is output at a field cycle. The frame update code is output when a frame of the original image data is updated. As the output field discrimination signal, ":!" Is output when the original image data is the first field (f1), and "0" is output when the original image data is the second field (f2).

For example, in the case of 1/61 one-way field mouth reproduction shown in FIG. 9, when a mode command is issued by the system control circuit ( ⁵ ), the magnetic tape (1) is reduced to 1/6 of the normal speed. It is sent intermittently, whereby the VTR reproduction circuit (2) repeatedly outputs the original reproduction image data f1 of the first field six times in the field cycle. Also, a frame update signal is output in the first field cycle, and it is shown that data f1 of a new frame is output from this field. Since the first field data f1 is output during the first six field periods, the output field discrimination signal is maintained at "1" for the six field period, and thereafter, the data の of the second field is output. Changes to "0" during the field where 2 is output. In the subsequent six field periods, the data f 2 of the second field is output, and the output field discrimination signal remains “0”. At this time, the memory control circuit 4) performs the operations shown in FIG. 7 and FIG. At step S1 in Fig. 1 ^ 7, the process waits for the reception of the vertical synchronization signal. When the vertical channel is input, the operation mode is determined at step S2. In the example of FIG. 9, since the 1/6 forward field throw: has been detected, the process proceeds to step S4, where the value of the first internal memory M is input to the second internal memory M 1 (^ Next, in step S5, the value of the first internal memory M is input to the value of the third internal memory M. These values are used to reverse the value of M updated in step S7 or S8. Only in the case of the first frame, two fields are delayed for Ml, and it is possible to delay it for one field period to Ml (Fig. 9 (1)).

Next, in step S6, it is determined whether or not the frame update signal is being output. The output of the frame is subjected to the initial processing of steps S7 and S9, and the frame update signal is output. In step S8, the value of the first internal memory M is reset. Therefore, immediately after the first internal memory M is updated to "0" when the frame is updated, it is incremented by 1 every one field thereafter; icT.

In step S9, the frame is updated and no new frame data is output from the VTR reproducing circuit (2), and the data is written to the sister frame memory (3) and the data is rewritten. Therefore, the power status should be checked whether the first field and the second field have been written to the frame memory (3). Both the 1 write flag and the f2 write completed flag are reset to "0".

In the next steps S10 and S13, it is determined whether the data f1 of the first field is to be written t ^, and if it should be written, a ί1 write signal is generated, and the f1 written flag is set. Set to "1". In this example, the f1 write ^^ flag indicates unwritten, and the output field discrimination signal indicates f1, and the f1 write signal is appear.

In the reverse frame playback, ^ (1 2 E1) is the slot based on the data f 1 of the first frame in the previous frame in the first and second frame. Since the image is displayed, if the data f1 of the second field is written immediately after the frame update, the data f1 of the previous frame will be erased, so no f1 write signal will be generated when 2 <M Like that.

Next, in step S14 and S16, it is determined whether or not the data f2 of the second field is to be written. At the time of writing, a 時には 2 write signal is generated, and the f2 written flag is set to " Set to 1 ". In the present embodiment, the 22 write signal is generated when ^ 2 indicates that the f2 written flag has not been written and the output field discrimination signal indicates f2.

After step S17 shown in FIG. 8, it is determined which sub-screen image to read out of the images written in the frame memory (3).

First, in step S17, it is determined whether or not the second internal memory Ml (^ is directly "0". If it is "0", the fourth internal memory C is set to "0" in step S18. If it is not "0", in step S19 C (^ N / L is added directly. In this embodiment, N = 4 and L = 6, and C is changed every one field period. The value increases by 2Z3; >> (Fig. 9 (1)).

In the next steps S20 to S28, the sub-screen to be read is determined based on the internal memories Ml and C, based on the force in the 1 ^ direction and the force in the reverse direction.

In the case of a forward slot, the remainder of the value obtained by dividing the value of the internal memory C by the number N of sub-screens (= 4) in step S21 is C1, and the value of Ml is determined in step S22. Judge, If Ml is smaller than L, the data f1 of the first build is read from the frame memory (3) in step S23, and if Ml is L or more, the data is read from the frame memory (3) in step S24. In order to read the data f2 of the second field, the f1 / f2 read signal (see FIG. 9) is used.

On the other hand, in the case of slow playback in the reverse direction, in step S25 in FIG. 8, the value obtained by subtracting the part of CZ4 from three forces is set to C1, and the value of Ml is determined in step S26. If Ml is smaller than L, the data of the second field is read from the frame memory (3) in step S27, and if Ml is greater than L, the first field is read from the frame memory (3) in step S28. Create f1 / f2 read signal Figure 9 (k) to read out data ルド 1 of one field.

In step S29, which sub-screen is to be read is determined based on the f1 / f2 read signal thus created and the value of the internal memory C1, and the read address in the frame memory (3) is generated. ί¾ · In other words, if C1 is "0", the upper left corner, if "1", upper right corner, if "2", lower left corner, if "1", the lower child screen is read, and memory control is performed. is there.

As a result, a slow image with iirt mouth is obtained in Fig. 9 (n).

1/6 | 1 (1¾ "frame throw, 1 no 6 reverse field throw, 1Z6 reverse frame throw: ^ is also i ^ in Figs. 10, 11 and 12, respectively, in the same way. One image is obtained for i.

According to the throw device according to the present invention, based on the original image obtained by the high-speed job, the slow image can be reproduced in any direction in the forward direction or in the 〖ϋί direction along the time axis. ^ It is possible to

The description of the above embodiment is intended to explain the present invention, and It should not be construed that the invention of ia¾ should be limited to i. In addition, each of the present invention

The structure of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the range of 1 η within the range of special η ¾ 求. Industrial use ^ raw

The present invention is suitable for implementing a mouth image from a source image obtained according to (iii) in a slow position.

Claims

The scope of the claims

1.1 M® is an original image composed of N children, and β images with a normal β period of 1 Z Ν (where 2 is 2 or more Reproduce the original image from the mmm body using the medium in which the original image arranged in β is a regular β period as a medium, and reproduce the reproduced image based on the word image. In the relocation,

Image playback means for playing back the original image from the medium at 1 / L (L is less than N),

A memory means capable of recording at least one translation of 赚 data; a data writing control means for writing at least 1 ra of original image data obtained from the image reproducing means into the memory means;

Reads the image data of the original solid image from the memory means, and outputs the data of each child as a series of video data by arranging the data of each child in order along the time axis within L times the normal screen period. Data read control means

Re-throw with the number

2. IMS is an original image composed of Ν children, and N images represented by 1 N (where N is 2 or more ^ :) in the Finoredo period are each assigned to a predetermined child. Slow repositioning, in which the original image placed in the image is played back from the tape, with the magnetic tape that has a fino redo cycle as ¾ ^, and the playback image is reproduced based on the image 麵At

Image reproducing means for moving the magnetic tape in the forward direction and reproducing the original image from the magnetic tape at a normal 1 L (where L is an integer equal to or greater than N); A memory means capable of writing at least l fields of «data; a data writing control means for writing« data of one original field image obtained from the image reproducing means into the memory means;

The data of the original image is read from the memory means and the data constituting each child is read.

Data readout control means for arranging the data in the order of the time of shooting within L times the period of the finolade cycle and outputting it as a series of video data

And re-throw it with

3. IS® is an original image composed of N children β, and ^ images, which are ^^ with a period of 1 / Ν (Ν is an integer of 2 or more) of the field period, are each given child Original image force arranged in ffi The magnetic tape that has been set at the field period is set to ^^, and the original image is reproduced from the magnetic tape. ,

Image reproducing means for reproducing the original image from the magnetic tape by running the magnetic tape in the reverse direction with an iS of 1 ZUL (a normal integer greater than or equal to N);

A memory means capable of storing data for at least one field, a data writing control means for writing the original data of one field obtained from the image reproducing means into the memory means,

The »data of the original image is read from the memory means, and the data constituting each child β is read.

Data readout control means for arranging the data within a period L times the fino redo period in the reverse order of the time and outputting it as HI video data

It is said that it is equipped with

4. The image reproducing means has a memory capable of recording data for one file, and records the data of the original image for one fine reproduced from the magnetic tape. Rutotomoni, the memory power et 1 Fi one range of JP ^ Fff determined that by repeatedly L times to output a field period the Zodeichita of Noredo partial ^second term or scan port according to paragraph 3 Issai ft

5.] ® is an original image composed of N children, and 1 / N of the field period (N is a regular period of 2 or more, and each of the obtained N images is placed in a predetermined child. Using the magnetic tape in which the arranged original images are arranged at a fino redo cycle as ¾ ^, the original image is reproduced from the magnetic tape force, and the reproduced image is reproduced based on the image. In place

Image reproducing means for moving the magnetic tape in the forward direction and reproducing the original image from the magnetic tape at a normal 1 ZL (where L is an integer equal to or greater than N);

Memory means for storing data for at least one frame, data writing control means for writing data of one frame of original image obtained from the image reproducing means to the memory means,

Reads the original image data from the memory means, and arranges the video data for each of the fields constituting each child in the order of the shooting time in a period L times the field period and outputs it as a series of data Data read control means

And that it is glued with that

6. 1 ®® is an original image composed of N children, and Ν images that have been subject to a fino redo period of 1 Ν (Ν is an integer of 2 or more) The original image placed on the magnetic tape is played back from the magnetic tape, taking the magnetic table formed at the field period as ^^, and the slow playback image is reproduced based on the listening image. In place

An image reproducing means for running the magnetic tape in the reverse direction and reproducing the original image from the magnetic tape at a normal 1 ZL (L is greater than »); Memory means capable of recording data for at least l frames, data writing control means for writing data of one frame of original image obtained from the image reproducing means to the memory means,

The image data of the original image is read out from the memory means, and the video data for each field constituting each child is arranged within a period L times the field period in the reverse time order of the photographing, and a series of ^^ Data read control means to output as data

Slow re

7. The image reproducing means includes a memory capable of recording data for one frame, and records and records the original data of one frame reproduced from the magnetic tape. Outputs one frame of «data from the memory repeated L times in a frame cycle L times The range of special fPf * is described in the fifth or sixth term.