JPH04146722A - Image regeneration processing device - Google Patents

Abstract

PURPOSE:To display plural kinds of edited images individually or in synthesis similarly in the recording from the regeneration signals by regenerating a recording medium in which the images related to an inspected person and plural kinds of edited images of the living body wave form are recorded, by a general purpose regenerating device. CONSTITUTION:Electronic switches 40 and 42 for the supply of image signals Sa and image signals Sc are provided, and a multivibrator 44 into which the signal generated from a synchronization detecting circuit 22 in a prescribed clock is inputted, switch S1 for selecting a superimpose image figure from the living body wave form of the image signal Sa and image signal Sc, switch S2 for selecting only the action image of an inspected person, switch S3 for selecting only the living body wave form, and a switch S4 for selecting the half-divided image figure of the inspected person are installed. In a selective synthesizing part 30, the superimpose image figure, image of the inspected person, living body wave form, and the half-divided image figure are selected from the living body wave forms of the image signals Sa and image signals Sc and can be image-displayed on a monitor 34. Accordingly, the convenience performance in regeneration can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video playback processing device suitable for application to a monitoring system that simultaneously obtains waveforms of biological signals such as electroencephalograms and electromyograms, and behavioral videos.

[Summary of the invention]

The present invention relates to a video reproduction processing device suitable for application to an EEG monitoring system that obtains behavioral images simultaneously with waveforms of biological signals such as electroencephalograms and electromyograms. A playback device that plays back a video signal and a biological waveform signal from a recording medium recorded individually or as a combined edited image, a conversion means that generates and outputs the supplied biological waveform signal into an image signal, and the supplied image. By comprising an image synthesis selection means for outputting an edited image signal obtained by combining the signal and the video signal individually or by combining them, and an image display means for displaying an image of the edited image signal derived from the image synthesis selection means, The biological waveform and behavioral video are played back using a general-purpose playback device, and the convenience of playback is improved.

[Conventional technology]

Conventionally, the biological waveform of the subject whose brain waves are measured and the behavioral video of the subject are simultaneously displayed as images or recorded on a VTR (video tape recorder), and the brain waves and their behavioral state are analyzed. , an EEG monitoring system is used.

FIG. 4 shows a schematic configuration of a conventional EEG monitoring system.

20 In the EEG monitoring system, signals from the electrodes attached to the subject M are supplied to the electroencephalograph (2), which outputs an analog signal of the biological waveform and the subject is simultaneously monitored by the video camera (4). A video signal obtained by photographing the behavior of person M is supplied to a recording/reproducing section (6). In this recording/reproducing section (6), the biological waveform and the video signal are selected simultaneously (superimposed screen) or individually for image display, recording, and reproduction.

First, when displaying the biological waveform and the photographed video as an image, by selecting the switch SWI to the recording/display side, the video signal is input to the video signal synthesis circuit (8), and at the same time, the biological waveform is stored in the waveform memory (10). is converted into an image signal and supplied. Here, editing is performed using an operation means (not shown), for example, individual display images of video signals and biological waveforms, a superimposed screen, and a two-split screen are displayed on the monitor (12).
will be displayed.

Next, when recording, select switch SW2 to the imaging recording side, and the video signal from the video camera (4) and the analog signal of the biological waveform are converted into a time-division modulated signal by the modulation circuit (16). At the same time, it is supplied to the VTR (18) and recorded in the video and audio areas of the videotape.

Further, when recording the editing screen displayed on the monitor (12) from the video signal synthesis circuit (8), switch SW2 is selected to the editing image side.

Next, in the case of reproduction, the videotape recorded on the VTR (18) is reproduced. Then, by selecting the switch SWI to play, the video signal from the VTR (18) and the biological waveform are transmitted via the demodulation circuit (19) and the waveform memory (10) in the same way as in the case of recording/display. An image signal is obtained through conversion and is supplied to a video signal synthesis circuit (8). Furthermore, the recorded video signal from the VTR (18) is supplied to the synchronization detection circuit (17), and the horizontal and vertical signals obtained here are sent to the video signal synthesis circuit (8) and the waveform memory (17).
0) simultaneously to synchronize the horizontal and vertical signals. The editing screen here is displayed as an image on the monitor (12).

In this way, image display, recording, and reproduction of the edited image of the biological waveform of the subject M and the video signal are performed.

[Problem to be solved by the invention]

However, the video playback processing device according to the above-mentioned conventional technology is a relatively large stationary type, and cannot be easily played back using a recorded videotape at another location, such as an academic presentation venue. Here, playback on a general-purpose VTR can be considered, but in this case, it is difficult to obtain high-quality images due to white noise and blurred outlines of the image of the subject. When playing a videotape created with this device on a device other than this device, individual display images of video signals and biological waveforms, superimposed screen, 2
Multiple types of edited images such as split screen images cannot be played individually.

That is, only one of the edited images can be played back, and a required number of video tapes are required to display the desired image.

In view of the above-mentioned problems, the present invention reproduces a recording medium containing multiple types of edited images of videos and biological waveforms related to a subject using a general-purpose playback device, and uses the reproduced signals to perform multiple types of edited images similar to those at the time of recording. It is an object of the present invention to provide an excellent video playback processing device that can display images individually or by combining them.

[Means to solve the problem]

For example, as shown in the video playback processing device shown in FIGS. 1 to 3, the present invention can generate video signals from a recording medium that records behavioral video and biological waveforms of a subject individually or as a combined edited image. Reproducing device (20
), conversion means (24), (26) for generating and outputting the supplied biological waveform signal into an image signal, and an image outputting an edited image signal obtained by combining the supplied image signal and video signal individually or by combining them. It is characterized by comprising a combination selection means (30) and an image display means (34) for displaying an edited image signal derived from the image combination selection means.

[Effect]

According to the video playback processing device of the present invention, a video signal and a biological waveform are recorded using a general-purpose playback device (20) from a recording medium in which a behavioral video and a biological waveform of a subject are recorded individually or as a combined edited image. The signal is reproduced, and the biological waveform signal is further generated into an image signal. Then, this video signal and the image signal are displayed as the same image as a video recorded individually or by combining them.

As a result, a plurality of types of edited images similar to those at the time of recording can be displayed individually or in combination from the reproduced signal using a general-purpose reproduction device, and the convenience of reproduction is improved.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the video playback processing device of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, (20) is a general-purpose VTR, which plays back a video cassette containing video signals and biological waveforms as described in the conventional example. This VTR (20) outputs a video signal Sa taken with a video camera (not shown).
and a modulation signal s corresponding to the biological waveform output from the electroencephalograph
b is derived.

Furthermore, a synchronization detection circuit (22) that is supplied with the video signal Sa and extracts a synchronization signal, and a demodulation circuit (24) that is supplied with the modulation signal sb and obtains a demodulated signal are provided. When displaying the subject's video signal and biological waveform (signal) on the same screen, the synchronization detection circuit (22) needs to synchronize each video signal with the horizontal and vertical signals.
Horizontal and vertical signals are detected based on the video signal from the recycled bag and synchronized with the waveform memory (26) and the selection and synthesis circuit (30).

Further, a waveform memory (26) to which the demodulated signal is supplied and converts it into an image signal Sc, and an image signal Sc converted here.
and the video signal Sa are simultaneously input to the selection synthesis section (30).

Also, the demodulated signal is sent to the data processor (32) and the recorder (33).
), where it is recorded on a recording medium and stored for a long period of time, and is also subjected to analysis by a centralized central processing unit such as a computer.

As will be explained in detail later, the selection synthesis section (30) generates the biological waveforms of the video signal Sa and the image signal Sc into four types of display image signals: individual display images, superimposed screens, and two-split screens. A monitor that displays an image selected from these four types of display image signals (
34) is provided.

FIG. 2 shows the configuration of the selection and synthesis section 30 in detail.

It has electronic switches (40) and (42) to which the video signal Sa and the image signal Sc are supplied, and further includes a synchronization detection circuit (2).
2), a multi-by-break (44) into which a signal generated at a predetermined clock is input, a switch S1 that selects a superimpose screen from the biological waveforms of the video signal Sa and the image signal Sc, and only the behavioral video of the subject. A switch S2 for selecting only the biological waveform, a switch S3 for selecting only the biological waveform, and a switch S4 for selecting the two-split screen are provided.

Multivibrator (44) when selecting 2 split screen
AND circuits (52) and (54) for synchronizing screen division using the output of NAND circuit for case (56), (5
8) is provided. The output here turns on and off the electronic switches (40) and (42) to derive the video signal Sa and image signal Sc in a predetermined manner, i.e., superimpose screen, image of the subject, biological waveform, and 2-split Any signal on the screen is derived.

Next, the operation of the above embodiment will be explained.

The video signal Sa reproduced by the VTR (20) and the modulated signal sb of the biological waveform are supplied to a synchronization detection circuit (22) and a demodulation circuit (24), respectively. Furthermore, the image signal Sc and the video signal Sa obtained from the waveform memory (26) to which the demodulated signal is supplied are simultaneously input to the selection and synthesis section 30.

The selection and synthesis section 30 selects a superimposed screen, an image of the subject, a biological waveform, and a two-split screen from the biological waveforms of the video signal Sa and the image signal Sc, and displays the images on the monitor (34).

FIG. 3 shows an image displayed on the monitor (34).

FIG. 3A shows a superimposed screen when the switch S1 is turned on, that is, a display image in which the biological waveform J is superimposed on the behavioral video of the subject by combining the video signal Sa and the image signal Sc. and composite image of biological waveforms)
It is.

FIG. 3B shows only the behavioral image of the subject when the switch S2 is turned on, that is, the displayed image (the entire image of the subject) is displayed on the behavioral image of the subject using the video signal Sa.

FIG. 3C is a display image of the subject's biological waveform J (an image of the entire biological waveform) by turning on the switch S3, that is, the subject's biological waveform only, using the image signal Sc.

The third diagram is a display image in which the video signal Sa and the image signal Sc are divided into two screens by turning on the switch S4. ).

In this way, an edited image of the behavioral video of the subject M and the biological waveform J, either individually or combined, such as a superimposed screen, a video of the subject, the biological waveform, and a video recorded as a two-split screen. From a cassette to a general-purpose VTR
The video signal and biological waveform signal are reproduced using (20),
Furthermore, the biological waveform signal is generated as an image signal, and this video signal and the image signal are displayed as an image that is the same as a video recorded individually or by combining them. Therefore, general-purpose VT
From the reproduction signal using R(20), a plurality of types of edited images similar to those at the time of recording can be displayed individually or by combining them, and the convenience of reproduction is improved.

In the above embodiment, a videotape was used as the recording medium and a VTR was used as the playback device, but the present invention is not limited thereto. For example, the present invention also includes obtaining similar effects using a general-purpose playback device that employs CDs, LDs, and the like.

It is clear that the present invention is not limited to the above-described embodiments, and that various changes can be made without departing from the gist of the present invention.

〔Effect of the invention〕

As can be understood from the above description, according to the video playback processing device of the present invention, a general-purpose playback device can be used to record a behavioral video and biological waveform of a subject on a recording medium recorded individually or as a composite edited image. The video signal and biological waveform signal are reproduced, and the biological waveform signal is further generated into an image signal, and the video signal and image signal are displayed as an image that is the same as the recorded video either individually or by combining them. , it becomes possible to display a plurality of types of edited images, similar to those at the time of recording, individually or in combination from a reproduced signal using a general-purpose reproduction device, which has the effect of improving the convenience of reproduction.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the video playback processing device of the present invention, FIG. 2 is a circuit diagram showing the detailed configuration of the selection and synthesis section of the embodiment shown in FIG. 1, and FIG. 3A , B, C, and D are display image diagrams used to explain the operation of the embodiment shown in FIG. 1, and FIG. 4 is a block diagram showing a schematic configuration of a conventional EEG monitoring system. (20) is VTR1 (22) is a synchronization detection circuit, (24)
is a demodulation circuit, (26) is a waveform memory, (30) is a selection synthesis unit, (34) is a monitor, Sa is a video signal, sb is a modulation signal, Sc is an image signal, Sl, S2, Sa, S4 are selection switches It is.

Claims (1)

[Claims] A reproducing device that reproduces a video signal and a biological waveform signal from a recording medium in which a behavioral video and a biological waveform of a subject are recorded individually or as a combined edited image; a conversion means for generating and outputting a signal; an image synthesis selection means for outputting an edited image signal obtained by combining the supplied image signal and the video signal individually or by combining them; and an edited image derived from the image synthesis selection means. A video playback processing device comprising: image display means for displaying a signal as an image.