JPH0846995A - Image recording device and image reproducing device - Google Patents

Abstract

PURPOSE:To obtain a stereoscopic image of high quality. CONSTITUTION:At the time of recording, luminance signals Y from left and right cameras 1R and 1L are time-base-compressed in a mixing circuit 2 and the two compressed luminance signals are arranged respectively in the first half and the second half of 1H to be outputted as a luminance signal Y. This signal Y and a chrominance signal CR obtained from one camera IR of the two are added to a time difference correction circuit 4 to correct the delay of the signal Y caused by the processing of the mixing circuit 2 and after then the signals Y and C are recorded by a recording and reproducing device 3. At the time of reproduction, the two luminance signals compressed by a separation circuit 6 are extended to be luminance signals YR1 and YL1. The signal YR1 and a reproducing chrominance signal CR as a display signal for a right eye and only the signal YL1 or the signal YL1 and the signal CR as a display signal for a left eye are sent to left and right display 7R and 7L through time correction circuit 10R and 10L. Consequently, horizontal color bleeding is reduced while eliminating the deterioration of movement resolution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording an image signal obtained from two image pickup systems on a recording medium, and reproducing two image signals for display from the recording medium recorded by the recording apparatus. The present invention relates to a playback device.

[0002]

2. Description of the Related Art Conventionally, a field sequential recording / reproducing method is well known as a recording / reproducing method for a stereoscopic image signal. This is for recording and reproducing the left and right image signals for each field, for example, the first field is for the left signal, the second field is for the right signal, and so on. Is the way to do it. However, this method has a drawback that the period in the time axis direction is reduced to 1/30 second, a fast-moving subject cannot be followed, and the dynamic resolution is lowered.

On the other hand, there are the following well-known methods which do not reduce the dynamic resolution. The luminance signal in this method will be described below. At the time of recording, the right-eye and left-eye luminance signals including the two-system synchronization signals output from the two cameras are input to a mixing circuit that converts them into one signal. In this case, the two input signals are synchronized with one of the signals as a reference, or are synchronized with a synchronization signal from another synchronization signal generating circuit. This mixing circuit is configured as shown in FIG.

In FIG. 11, a sync separation circuit 131 extracts a sync signal from a signal serving as a reference for synchronization, here, a right-eye signal R shown in FIG. 12 (a), and subtracts it.
FIG. 12B is obtained by subtracting each signal R and L with R and 132L.
Use a signal without the synchronization signal shown in. Next, the respective signals are compressed to 1/2 in the time-axis direction by the time-axis compression circuits 133R and 133L, and the signal R'and the signal 1'to which the signal components are added in the first half of one horizontal period shown in FIG. In the latter half of the period, a signal L'composed of signal components is created. Next, they are added by the adder 134 to generate one luminance signal in which two signals R ′ and L ′ are arranged in one horizontal period as shown in FIG. Next, the adder 135 adds the synchronization signals, and the LP
A recording band of the VTR, for example, a high band of 6 MHz is band-limited through an F (low-pass filter) 136, and recorded as a video signal in a recording / reproducing device such as the VTR.

As a compression method in the time axis compression circuits 133R and 133L, A / D converters 133Ra and 13Ra are used.
The signal is sampled and digitized with a clock having a frequency fc that is twice the recording band of the VTR by 3La, that is, four times or more the maximum frequency of the signal itself, and then written in the memories 133Rb and 133Lb with the clock having the same frequency.
Next, the signal is read with a clock of frequency 2fc, and D / A
The converters 133Rc and 133Lc restore the analog signals. As the clock, a clock whose phase is synchronized with the synchronizing signal of the input signal by the PLL circuit 137 is used.

Next, at the time of reproduction, the signal reproduced from the VTR is separated into two signals by the separation circuit and input to the two systems of stereoscopic display devices corresponding to the left and right eyes. This stereoscopic display device has an image display means such as an LCD panel. The separating circuit is constructed in the opposite manner to the mixing circuit and is constructed as shown in FIG. FIG.
, The reproduced video signal R ′ shown in FIG.
The sync separation circuit 141 extracts the sync signal from L ′, and the subtractor 142 converts the sync signal into a signal without the sync signal shown in FIG. 14B, and the switch 143 switches the sync signal to one horizontal period as shown in FIG. 14C. The signal R'of only the first half of the signal component and the signal L'of the second half of the one horizontal period are separated.

Next, after the time axis expansion circuits 144R and 144L respectively expand the time axes to obtain the signals R "and L" shown in FIG. 14 (d), adders 145R and 145L add the synchronization signals, Two-system luminance signals as shown in FIG.

In the time axis expansion circuits 144R and 144L,
The signal is sampled by the A / D converters 144Ra and 144La at a frequency of 2 fc and digitized, and then the memory 1
It writes to 44Rb and 144Lb, reads at the frequency of fc, and is added to D / A converters 144Rc and 144Lc. As in the case of mixing, the sample clock uses a clock that is phase-synchronized with the input reproduction signal in the PLL circuit 146.

The color signal is also compressed and expanded in the same manner as described above, and recorded and reproduced.

[0010]

As in the above-mentioned conventional example,
When a stereoscopic image is recorded / reproduced by compressing / expanding 1/2 in the horizontal direction, the recording band in the horizontal direction of one signal becomes 1/2 of the original signal band. For example, in the case of VTR high-band recording, the luminance signal is about 6 MHz at 3 MHz.
In addition, the color signal changes from about 600 kHz to 300 kHz. Therefore, the reduction of the dynamic resolution can be prevented, but originally the color signal with a narrow band becomes narrower, and the horizontal horizontal color bleeds significantly, and since the vertical band is the same as the luminance signal, the horizontal There is a problem that the balance between the vertical resolution and the vertical resolution is considerably deteriorated.

The present invention has been made to solve the above problems, and an object thereof is to obtain an image recording apparatus and an image reproducing apparatus capable of reducing color bleeding without lowering the dynamic resolution. There is.

[0012]

According to a first aspect of the present invention, there is provided an image recording apparatus which compresses two luminance signals obtained from two image pickup systems on a time axis, and compresses the two luminance signals in one horizontal scanning period. Mixing means for arranging and outputting inside, and recording means for recording the output of the mixing means and the color signal obtained from one of the two image pickup systems on a recording medium after correcting their time difference. And are provided.

The image reproducing apparatus according to the invention of claim 2 is 1
An image reproducing apparatus for reproducing a recording medium in which two time-axis-compressed luminance signals arranged in a horizontal scanning period and a color signal corresponding to one of the luminance signals are recorded. Separation means for decompressing and outputting the two compressed luminance signals separately, and one decompressed luminance signal and the reproduced chrominance signal output from the separating means for correcting the time difference between them. While outputting as a display signal, only the other extended luminance signal obtained from the separation circuit or this luminance signal and the reproduced color signal are corrected as a second display signal by correcting their time difference. And output means for outputting.

The image recording apparatus according to the invention of claim 3 is 2
The two luminance signals obtained from the two image pickup systems are time-axis compressed, the two compressed luminance signals are arranged and output within one horizontal scanning period, and the two color signals obtained from the two image pickup systems are output. And a recording unit for recording the luminance signal and the color signal output from the mixing unit on a recording medium after correcting the time difference between them.

The image reproducing apparatus according to the invention of claim 4 is 1
Reproduction of a recording medium on which two luminance signals arranged in the horizontal scanning period and compressed on the time axis and two color signals respectively corresponding to these two luminance signals and alternately arranged at predetermined intervals are recorded. An image reproducing device that reproduces the two compressed luminance signals that have been reproduced and outputs them separately, and creates two continuous color signals from the reproduced two color signals by interpolation processing. Separation means for outputting separately, and one luminance signal and one color signal output from the separation means are corrected as a time difference between them and output as a first display signal, and also output from the separation means. An output means is provided for correcting the time difference between the other luminance signal and the other color signal and outputting the second display signal as a second display signal.

The image recording apparatus according to the invention of claim 5 is 2
The two luminance signals obtained from the two image pickup systems are time-axis compressed, the two compressed luminance signals are arranged and output within one horizontal scanning period, and the two color signals obtained from the two image pickup systems are output. In the vertical direction and arranges and outputs two compressed color signals within one field period, and a luminance signal and a color signal output from the mixing means are recorded with their time difference corrected. Recording means for recording on the medium is provided.

According to another aspect of the image reproducing apparatus of the present invention, the two time-compressed luminance signals are arranged and recorded in one horizontal scanning period, and the two vertically compressed color signals are one. An image reproducing apparatus which reproduces a recording medium arranged and recorded within a field period, wherein the reproduced two compressed luminance signals are expanded and separately output, and the reproduced two compressed signals are outputted. Separation means for decompressing and outputting the separated color signals separately, and one luminance signal and one color signal output from the separation means are corrected as the first display signal and output as a first display signal. At the same time, there is provided output means for correcting the time difference between the other luminance signal and the other color signal output from the separating means and outputting them as the second display signal.

[0018]

According to the image recording apparatus of the present invention,
From the mixing means, two compressed luminance signals are arranged and outputted in the first half and the latter half of one horizontal scanning period, and this output and one color signal are recorded after their time difference is corrected. .

According to the image reproducing apparatus of the invention of claim 2, when the recording medium recorded in the invention of claim 1 is reproduced,
Two decompressed luminance signals and color signals are output from the separating means, one luminance signal and one color signal are time-lag corrected and output as a first display signal, and only the other luminance signal is output. It is output as a second display signal, or the other luminance signal and color signal are time difference corrected and output as a second display signal.

According to the image recording apparatus of the third aspect of the present invention, from the mixing means, two compressed luminance signals are arranged and outputted in the first half and the latter half of one horizontal scanning period, and two colors are output. The signal is switched and output every predetermined period, and after the time difference between each luminance signal and each color signal is corrected,
Will be recorded.

According to the image reproducing apparatus of the fourth aspect of the present invention, when the recording medium recorded in the third aspect of the present invention is reproduced, two decompressed luminance signals and two interpolated luminance signals are obtained by the separating means. Two continuous color signals are output, one luminance signal and one color signal are time difference corrected and output as a first display signal, and the other luminance signal and the other color signal are time difference corrected. And is output as a second display signal.

According to the image recording apparatus of the fifth aspect of the present invention, from the mixing means, two compressed luminance signals are arranged and outputted in the first half and the latter half of one horizontal scanning period, and at the same time two colors are output. The signal is arranged and output in the first half and the second half of one field period, and the time difference between them is corrected and then recorded.

According to the image reproducing apparatus of the invention of claim 6, when the recording medium recorded in the invention of claim 5 is reproduced, the separating means produces two expanded luminance signals and expanded color signals. One of the luminance signal and the one color signal is output as a first display signal after being subjected to time difference correction, and the other luminance signal and the other color signal are subjected to a time difference correction after being performed as a second display signal. Is output as.

[0024]

【Example】

(First Embodiment) FIG. 1 shows the configuration of the first embodiment. The recording / reproducing method of the luminance signal is performed in the same manner as the above-mentioned conventional example, and thus detailed description thereof will be omitted. In FIG. 1, during recording, the right-eye and left-eye cameras 1R and 1L of the compound-eye camera 1 are used.
A luminance signal obtained by mixing one signal (here, the color signal of the camera 1R) CR and two luminance signals YR and YL of the two color signals output from Y is input to the recording / reproducing apparatus 3 as a recording signal and recorded on a recording medium such as a magnetic tape.

At this time, in the mixing circuit 2, the luminance signal is subjected to the time-axis compression processing in the memory as shown in the conventional example, and therefore the output luminance with respect to the input luminance signals YL and YR of the mixing circuit 2 is output. The signal Y is shifted on the time axis. As a result, since there is a time difference between the recording luminance signal and the color signal, the time difference is corrected using the time difference correction circuit 4 before recording. Here, in order to confirm the recorded signal, when the recorded signal is monitored, only the luminance signal Y recorded on the monitor 5 is input and the recorded image is confirmed with a monochrome image. Then, the visual discomfort due to the difference in the recording format of the luminance signal and the color signal does not occur.

Next, at the time of reproduction, the luminance signal Y of the signal reproduced by the recording / reproducing device 3 is input to the separation circuit 6 and restored to the signals YL ₁ and YR ₁ of the two systems, and the left eye of the stereoscopic display device 7 respectively. Input to the right and right eye display devices 7R and 7L. At this time as well, since there is a time difference between the luminance signal and the chrominance signal due to the processing of the luminance signal in the separation circuit 6, the time difference is corrected by using the time difference correction circuits 8R and 8L.

On the other hand, the reproduced color signal CR is directly input to both the left and right display devices 7R and 7L. At this time, since the luminance signals YR ₁ and YL _{1 which} are most of the elements that give a stereoscopic effect are present on the left and right, the stereoscopic effect can be sufficiently expressed at the time of fusion. Since the signal band of the color signal is originally narrow, there is almost no difference between the left and right, and the left and right display devices 7R, 7
It may be considered to be equivalent to the case where the left color and the right color are displayed on L respectively. Therefore, there is almost no discomfort in the image as a whole.

Since the stereoscopic effect can be expressed by the luminance signals YR ₁ and YL _1, it is sufficient to input the color signal to either the left or right display device (7R in this case) using the switch 9.

As described above, with respect to the luminance signal, recording / reproducing is performed by using time axis compression / expansion within one horizontal scanning period,
A color image is not processed, and only one color signal is recorded and reproduced as it is, so that the horizontal blurring of the color is suppressed without lowering the dynamic resolution, and a good image can be obtained.

(Second Embodiment) FIG. 2 shows the configuration of the second embodiment. This FIG. 2 is also used in the third and fourth embodiments described later. FIG. 3 shows a configuration example of the mixing circuit 2 therein, and FIGS. 4 and 5 show a configuration example of the separation circuit 6. Since the same processing as that of the first embodiment is performed on the luminance signal, detailed description thereof will be omitted. In FIG. 2, at the time of recording, two systems of color signals CR and C output from the cameras 1R and 1L are used.
L is input to the mixing circuit 2. The mixing circuit 2 is configured as shown in FIG. In FIG. 3, the sync separation circuit 2
A signal which is a reference for synchronization in a, a right-eye signal YR in this case, is extracted, and HIGH / LOW is switched for each field from the synchronization signal (for example, the first field is HIGH, the second field is LOW), a field switch signal Generate SW.

The left and right color signals CR and CL input from the cameras 1R and 1L are input to the switch 2b, and the above S
It can be switched by the W signal. The one-system color signal C output from the switch 2b is recorded as a recording color signal by the recording / reproducing device 3 together with the luminance signal Y from the luminance signal compression / mixing circuit 2c. At this time, as in the first embodiment, the luminance signal Y
Since there is a time difference between the color signal C and the color signal C due to the processing in the mixing circuit 2, the time difference is corrected using the time difference correction circuit 4 and recorded.

As in the first embodiment, the monitor 5 is used to monitor the recorded signal for confirmation of the recorded signal.
Only the luminance signal Y recorded in is input so that a black-and-white image can be confirmed.

At the time of reproduction, the luminance signal Y and the color signal C reproduced from the recording / reproducing device 3 are input to the separation circuit 6. The separation circuit 6 has a different structure depending on the separation method. For example, the method using front field interpolation has the structure shown in FIG.

In FIG. 4, from the input luminance signal Y
As in the case of the mixing circuit 2, a sync signal is generated by the sync separation circuit 6a.
ODD, EVEN field switch signal O
Generates DDSW and EVENSW. Reproduction color signal C
Is divided into two systems as shown in the figure, one is as it is, the other
One is a 1-field delay means 6b, for example, a memory
Field delay and then field synchronization
Input to switches 6Rc and 6Lc. This switch 6R
c and 6Lc are the above ODDSW signal and the above inverted version of the ODDSW signal.
Each output is switched by the EVENSW signal.
Right eye color signal CR₁, Left eye signal CL₁As the brightness signal
Luminance signal YR from the signal decompression / separation circuit 6a ₁, YL₁And
It is output to the display devices 7R and 7L shown in FIG. This time
Also, as with recording, the luminance and color signals are separated from each other.
Since there is a time difference due to the processing in the circuit 6,
Time adjustment is performed using the difference correction circuits 10R and 10L.

When another interpolation, such as the average value interpolation of the preceding and following fields, is used as another example of the separation circuit 6, the configuration shown in FIG. 5 is adopted. In FIG. 5, the sync separation circuit 6a generates the field switch signal SW from the luminance signal Y. On the other hand, the input reproduction color signal C is separated by the left and right field separation switch 6e into two systems originally having only left and right signal components. The SW signal is used as the switching signal here. Next, the signals of the two systems are input to the field interpolation circuits 6Rf and 6Lf, respectively, where the missing fields are filled, and the luminance signal Y as the right-eye color signal CR ₁ and the left-eye color signal CL ₁ , respectively.
It is output to the display devices 7R and 7L together with R ₁ and YL ₁ .

At this time, although the dynamic resolution is lowered in the color signal due to the field sequential recording / reproduction, the recognition of the movement is mostly performed by the luminance signal,
Here, since the luminance signal is subjected to compression / expansion recording / reproduction in the horizontal direction with no reduction in dynamic resolution, almost no overall problem occurs.

As described above, the luminance signal is recorded and reproduced by using the time axis compression / expansion within one horizontal scanning period, and the color signal is recorded and reproduced in the field sequential manner. Similar to the example, a good image can be obtained by suppressing horizontal color bleeding without lowering the dynamic resolution.

(Third Embodiment) FIG. 2 shows the configuration of the third embodiment. FIG. 6 shows a configuration example of the mixing circuit 2 therein,
7 and 8 show a configuration example of the separation circuit 6. Since the luminance signal is the same as that in the first embodiment, detailed description will be omitted. During recording, the two-system color signals CR and CL output from the cameras 1R and 1L are input to the mixing circuit 2. This mixing circuit 2 is configured as shown in FIG. In FIG. 6, the sync separation circuit 2g extracts a sync reference signal from the sync reference signal, here the right-eye signal YR, and switches HIGH / LOW for each line from the sync signal (for example, an odd line is HIGH, an even line is Generates a line switch signal LSW.

The left and right color signals CR and CL input from the cameras 1R and 1L are input to the line sequential switch 2h and switched by the LSW signal. The one-system color signal C output from the switch 2h is recorded as a recording color signal together with the luminance signal Y in the recording / reproducing apparatus 3 of FIG.
Further, when the recorded signal is monitored to confirm the recorded signal, only the luminance signal Y recorded on the monitor 5 is input so that the monochrome image can be confirmed.

At the time of reproduction, the luminance signal Y and the color signal C reproduced from the recording / reproducing device 3 are input to the separation circuit 4. The separation circuit 4 has a different structure depending on the separation method. For example, a method using front line interpolation has a structure as shown in FIG. In FIG. 7, the sync signal is separated from the input luminance signal Y by the sync separation circuit 6g to generate the line switch signals LSW1 and LSW2. The reproduced color signal C is divided into two systems as shown in the figure, one of which is left as it is and the other of which is delayed by one line by a 1-line delay means 6h, for example, a line memory, and then the line synchronization switch 6 is used.
It is input to Ri and 6Li. This switch 6Ri, 6L
By switching i according to the LSW1 signal and its inverted signal LSW2, the right eye color signal CR ₁ and the left eye signal CL ₁ are obtained, and the luminance signal YR is displayed on the display devices 7R and 7L of FIG.
It is output together with ₁ and YL ₁ .

In addition, as another example of the separation circuit 6, when another interpolation such as an average value interpolation of upper and lower lines is used,
The configuration shown in FIG. 8 is adopted. The sync separation circuit 6g generates a signal LSW from the luminance signal Y. The input reproduction color signal C is separated by the left and right line separation switch 6j into two systems of signals having only the original left and right signal components. Here, the LSW signal is used as the switching signal. Next, the signals of the above two systems are respectively supplied to line interpolation circuits 6Rk, 6Rk.
It is input to Lk, the missing line is filled there, and is output to the display devices 7R and 7L together with the luminance signals YR ₁ and YL ₁ as the right-eye color signal CR ₁ and the left-eye signal CL ₁ , respectively. Also in this example, as in the second embodiment, the time difference correction circuits 4 and 10 are used for the time adjustment of the recorded luminance signal and color signal and the time adjustment of the luminance signal and color signal output to the display system.
R, 10L.

As described above, the luminance signal is recorded / reproduced by using the time axis compression / expansion within one horizontal scanning period, and the color signal is recorded / reproduced line-sequentially. Similar to the embodiment described above, a good image can be obtained by suppressing horizontal color bleeding without lowering the dynamic resolution.

(Fourth Embodiment) FIG. 2 shows the configuration of the fourth embodiment. FIG. 9 shows a configuration example of the mixing circuit 2 therein,
FIG. 10 shows a configuration example of the separation circuit 6. Since the luminance signal is processed in the same manner as in the first embodiment, detailed description will be omitted. During recording, the two-system color signals CR and CL output from the cameras 1R and 1L are input to the mixing circuit 2. The mixing circuit 2 is configured as shown in FIG. In FIG. 9, a signal serving as a reference for synchronization in the sync separation circuit 2i,
Here, a sync signal is extracted from the right-eye signal YR, and HIGH / LOW is switched every 1/2 field from the sync signal (for example, from the top to the middle of the screen, H
IGH, LOW from the middle to the bottom) 1/2 VSW
Generate a signal.

Left and right color signals C input from the outside
R and CL are input to the vertical 1/2 compression circuits 2j and 2k, respectively. Here, the number of lines in one field is halved. For example, each line is thinned out, or the average value of the upper and lower lines is calculated in pairs of two lines, the empty lines are packed on the time axis, the signal is sent to the first half field in time, and there is no signal in the second half field. To Of these two systems of output compressed signals, here, the right-eye color signal CR is delayed by 1 / 2V delay means 2l, for example, 1 / 2V in the memory so that the signal exists in the latter half of the field, and upper and lower combining is performed. Input to switch 2m. Then, the two signals are switched by the 1/2 VSW signal and output.

As the output signals of the switch 2m are squeezed up and down, the left eye signal is displayed in the upper half of the screen.
It is like the signals for the right eye line up in the lower half. Next, the output color signal of one system is recorded as a recording color signal C together with the luminance signal Y in the recording / reproducing apparatus 3. Also,
When monitoring the recorded signal for confirmation of the recording signal, only the luminance signal Y recorded on the monitor 5 is input to confirm a monochrome image.

At the time of reproduction, the luminance signal Y and the color signal C reproduced from the recording / reproducing device 3 are input to the separation circuit 6. The separation circuit 6 is configured as shown in FIG. FIG.
At 0, the sync separation circuit 6e separates the sync signal from the input luminance signal Y to generate the 1 / 2VSW signal. The input reproduction color signal C is used for the upper and lower image separation switch 6
In m, it is separated into two systems of signals having only the original left and right signal components. The switching signal here is 1/2 V described above.
The SW signal is used.

Of the two systems of signals, the signal of the right-eye component exists in the latter half of the field, so the 1 / 2V delay means 6 is used.
The signal is present in the first half of the next field by delaying 1/2 V in Rn, for example, a memory. This is filled in the missing line by the right-eye signal vertical expansion circuit 6Ro, and then output as the right-eye color signal CR ₁ . In addition, the signal of the left-eye component is filled with a missing line by the left-eye signal vertical expansion circuit 6Lo, and then delayed by 1V delay means 6Ln, for example, 1V in a memory, in order to match the signal with the right-eye signal CR ₁ in time. The color signal CL ₁ for the left eye is output.

The output luminance signals of the two systems are also delayed by 1V by the 1V delay means 6R _p and 6L _p in order to synchronize the time, and then output. Also in this example, the above 1V, 1/2
In addition to the V delay, time difference correction circuits 4, 10R, 10L for performing fine time adjustment of the recorded luminance signal and color signal or the luminance signal and color signal output to the display system are required.

As described above, with respect to the luminance signal, recording / reproduction is performed using the time axis compression / expansion within one horizontal scanning period, and for the color signal, the time axis compression / expansion within one field (vertical direction) is performed. By adopting a configuration in which recording / reproduction is performed by the method used, similar to the first embodiment, a good image can be obtained by suppressing horizontal color bleeding without lowering the dynamic resolution.

Incidentally, in FIGS. 1 and 2, the cameras 1R, 1
L and 2 are two image pickup systems, and the time difference correction circuit 4 and the recording / reproducing apparatus 3 constitute recording means. Also, the time difference correction circuit 1
0R and 10L form an output means, YR ₁ and CR _{1 form} a first display signal, and YL ₁ and CL ₁ form a second display signal.

[0051]

As described above, according to the first aspect of the invention, the two luminance signals are time-axis compressed by the mixing means,
The two compressed luminance signals are arranged and output within one horizontal scanning period, and the output and one color signal are recorded after correcting their time difference.

According to the invention of claim 2, the recording medium recorded by the invention of claim 1 is reproduced, and the two compressed luminance signals are expanded and separated by the separating means. One luminance signal and one color signal are output, one of the luminance signal and the color signal is time difference corrected and is output as a first display signal, and only the other luminance signal is output as a second display signal. Alternatively, the other luminance signal and color signal are time-difference-corrected and output as a second display signal.

According to the third aspect of the present invention, the two luminance signals are time-axis compressed by the mixing means, the two compressed luminance signals are arranged and output within one horizontal scanning period, and at the same time two colors are output. The signal is switched for each predetermined period and output, and each luminance signal and each color signal is recorded with the time difference corrected.

According to the invention of claim 4, the recording medium recorded by the invention of claim 3 is reproduced, and the two compressed luminance signals are expanded by the separating means and expanded by the separating means. Outputs two luminance signals and outputs two continuous color signals by interpolating each of the two color signals.
The first luminance signal and the first color signal are corrected by the time difference and the first
In addition to outputting the other display signal, the other luminance signal and the other color signal are time difference-corrected and output as the second display signal.

According to the invention of claim 5, the two luminance signals are time-axis compressed by the mixing means, the two compressed luminance signals are arranged and output within one horizontal scanning period, and at the same time two colors are output. The signals were arranged in one field period, and the time difference between them was corrected and then recorded.

According to the invention of claim 6, the recording medium recorded in the invention of claim 5 is reproduced, and the two compressed luminance signals are expanded by the separating means and expanded by the separating means. The two luminance signals and the expanded color signal are output, the time difference between the one luminance signal and the one color signal is corrected, and
In addition to outputting the other display signal, the other luminance signal and the other color signal are time difference-corrected and output as the second display signal.

Therefore, according to the present invention, there is an effect that a high-quality three-dimensional image can be obtained in which the dynamic resolution is not lowered and the color blur in the horizontal direction is suppressed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing second, third and fourth embodiments of the present invention.

FIG. 3 is a block diagram of a mixing circuit according to a second embodiment of the present invention.

FIG. 4 is a block diagram of a separation circuit using front field interpolation according to a second embodiment of the present invention.

FIG. 5 is a block diagram of a separation circuit using field interpolation according to a second embodiment of the present invention.

FIG. 6 is a block diagram of a mixing circuit according to a third embodiment of the present invention.

FIG. 7 is a block diagram of a separation circuit using front line interpolation according to a third embodiment of the present invention.

FIG. 8 is a block diagram of a separation circuit using line interpolation according to a third embodiment of the present invention.

FIG. 9 is a block diagram of a mixing circuit according to a fourth embodiment of the present invention.

FIG. 10 is a block diagram of a separation circuit according to a fourth exemplary embodiment of the present invention.

FIG. 11 is a block diagram showing a conventional mixing circuit.

FIG. 12 is a timing chart showing the operation of a conventional mixing circuit.

FIG. 13 is a block diagram showing a conventional separation circuit.

FIG. 14 is a timing chart showing the operation of a conventional separation circuit.

[Explanation of symbols]

1R, 1L Camera 2 Mixing circuit 3 Recording / reproducing device 4, 10R, 10L Time difference correction circuit 6 Separation circuit 7R, 7L Display device Y, YR ₁ , YL ₁ Luminance signal C, CR ₁ , CL ₁ color signal

Claims (14)

[Claims] 1. Mixing means for compressing two luminance signals obtained from two image pickup systems on a time axis, arranging and outputting the two compressed luminance signals within one horizontal scanning period, and said mixing means. An image recording apparatus comprising: a recording unit that corrects a time difference between an output and a color signal obtained from one of the two imaging systems and records the color signal on a recording medium. 2. An image reproducing device for reproducing a recording medium on which two luminance signals arranged in one horizontal scanning period and time-axis compressed and a color signal corresponding to one of the luminance signals are recorded. Separation means for expanding the reproduced two compressed luminance signals and outputting them separately, and correcting the time difference between one expanded luminance signal output from the separating means and the reproduced color signal. Then first
And the other extended luminance signal obtained from the separating means or the luminance signal and the reproduced color signal are corrected as the time difference between them and output as the second display signal. And an image reproducing device including an output unit for performing the operation. 3. Two brightness signals obtained from two image pickup systems are time-axis compressed, the two compressed brightness signals are arranged and output within one horizontal scanning period, and the two image pickup systems are output from the two image pickup systems. Mixing means for switching and outputting the obtained two color signals at predetermined intervals, and recording means for correcting the time difference between the luminance signal and the color signal output from the mixing means and recording them on a recording medium. Image recording device. 4. A recording is made of two luminance signals arranged in one horizontal scanning period and compressed on the time axis, and two color signals respectively corresponding to these two luminance signals and alternately arranged every predetermined period. An image reproducing device for reproducing the reproduced recording medium, wherein the reproduced two compressed luminance signals are expanded and separately output, and the reproduced two color signals are consecutive by interpolation processing. Separation means for producing two color signals and outputting them separately, and one luminance signal and one color signal output from the above-mentioned separation means are corrected as a time difference between them and output as a first display signal, and An image reproducing apparatus comprising: an output unit that corrects a time difference between the other luminance signal and the other color signal output from the separating unit and outputs the second display signal as a second display signal. 5. The two luminance signals obtained from the two image pickup systems are time-axis compressed, the two compressed luminance signals are arranged and output within one horizontal scanning period, and the two image pickup systems are output from the two image pickup systems. Mixing means for vertically compressing the obtained two color signals and arranging and outputting the two compressed color signals within one field period, and a luminance signal and a color signal output from the mixing means An image recording apparatus including a recording unit that corrects the time difference between the above and records on a recording medium. 6. Two time-compressed luminance signals are arranged and recorded in one horizontal scanning period, and two vertically compressed color signals are arranged and recorded in one field period. An image reproducing device for reproducing the recorded medium, wherein the reproduced two compressed luminance signals are expanded and separately output, and the reproduced two compressed color signals are expanded and separately. And a separation means for outputting the first luminance signal and the one color signal outputted from the separating means, and outputs them as a first display signal by correcting the time difference between them and outputs them from the separating means. An image reproducing apparatus including: an output unit that corrects a time difference between the other luminance signal and the other color signal and outputs the second display signal as a second display signal. 7. The image recording apparatus according to claim 3, wherein the predetermined period is every field period. 8. The image recording apparatus according to claim 3, wherein the predetermined period is a line period. 9. The image reproducing apparatus according to claim 4, wherein the predetermined period is every field period. 10. The image reproducing apparatus according to claim 4, wherein the predetermined period is every line period. 11. The image reproducing apparatus according to claim 4, wherein the predetermined period is a field period and the interpolation process is a field interpolation process. 12. The image reproducing apparatus according to claim 4, wherein the predetermined period is a field period, and the interpolation process is a front field interpolation process. 13. The image reproducing apparatus according to claim 4, wherein the predetermined period is a line period, and the interpolation process is a line interpolation process. 14. The image reproducing apparatus according to claim 4, wherein the predetermined period is a line period, and the interpolation process is a front line interpolation process.