JP3425161B2 - Simple TV camera - Google Patents

Description

Detailed Description of the Invention

[0001]

This invention relates to a V for next-generation EDTV.
The present invention relates to a non-interlaced simplified TV camera applicable to a TR integrated TV camera and the like.

[0002]

2. Description of the Related Art In a conventional television camera, for example, a three-plate type television camera using a CCD as an image pickup device, all the red (R), green (G), and blue (B) primary color signals (component signals) obtained from each CCD are interleaved. It is a race signal.

As an example of an NTSC television signal, interlaced scanning in an odd field produces 262.5 interlaced signals (line signals) in one field as shown in FIG. 262.5 interlaced signals in one field as shown in FIG. A obtained by shifting by 1/2 scanning line pitch can be obtained.

For such an interlaced signal, FIG.
When an image is reproduced by 525 non-interlaced signals in one field like 6A, the resolution in the vertical direction is improved and the image quality is significantly improved. In recent years, there has been an increasing tendency toward non-interlacing.

The non-interlaced signal can be obtained by devising both the image pickup system and the signal processing system in the television camera, a concrete example of which is already filed by the present applicant.
Proposed in No. 6408.

17 to 20 show an example thereof,
As shown in FIG. 17, four CCDs as image pickup elements are used. The optical image 10, which is the subject, passes through the optical system 20 and the CCD.
An image is formed on 30, 31, 32, and 33, and a luminance signal Y (luminance signal of the first system) is obtained from the CCD 30. Similarly, a red primary color signal R is from the CCD 31 and a blue primary color signal B is from the CCD 32. And a luminance signal Yo '(second luminance signal) is obtained from the CCD 33.

When applied to a television camera for EDTV, the number of vertical lines is selected to be about 525, so that the luminance signals Y and Yo 'and the primary color signals R and B are 262.5 as interlaced signals. A line signal is output.

FIG. 18 shows a concrete example of the optical system 20.
Is a half mirror, 23 is a spectroscopic system (eg prism), 2
4, 25 and 26 are mirrors. With this configuration, corresponding color separation images R, B, Yo 'and Y (Y and Yo' are black and white images) of the optical images are formed on the CCDs 30 to 33 described above.

Interlaced signals are output from each of the above-mentioned CCDs 30 to 33. Therefore, the horizontal and vertical drive systems for these CCDs 30 to 33 are horizontal and vertical used in conventional television cameras. There is no difference from the drive system.

Among the image pickup outputs, the luminance signal Y and the primary color signals R and B are supplied to a matrix circuit 40 shown in FIG. 17 and, for example, a luminance signal Y for NTSC system and a pair of color difference signals RY and BY. Is formed. The luminance signal Y, the pair of color difference signals RY and BY, and the luminance signal Yo 'of the second system are further supplied to a signal synthesis processing circuit (signal combiner) 50, and the luminance signals Y and Yo for the luminance signal. 'Is used for non-interlace processing, and other color difference signals are subjected to non-interlace processing such as using color difference signals of adjacent lines to generate a television signal TV' for high image quality. .

The television signal TV 'for improving image quality will be described below. First, the non-interlace processing for the luminance signal will be described.

The CCD 30 for obtaining the luminance signal Y and the luminance signal Y
As shown in FIG. 19, the relationship with the CCD 33 that obtains o ′ is a state in which the scanning line pitch (pixel pitch) P in the vertical direction of the CCD is spatially displaced by P / 2 only in the vertical direction V as shown in FIG. Will be placed in.

By doing so, the CCDs 30 and 33 are
Even if they are driven simultaneously, the CCD 30 and the CCD 33 sample different spatial positions, so
Image information of different lines shifted by a / 2 scanning line pitch is output as a line signal. This will be described with reference to FIG. For convenience of description, the lines in FIGS. 15A and 16A are simplified and shown by “O” marks as in FIGS. 15B and 16B, respectively.

When the odd field OF for the luminance signal Y obtains the interlaced signal (marked "O") as shown in FIG. 20A, the odd field for the luminance signal Yo 'becomes the interlaced signal as shown in FIG. 20B. These are interlaced signals that are offset from each other by P / 2 with respect to the vertical direction.

Therefore, if the two signals are used alternately, the non-interlaced luminance whose scanning line pitch is ½ of the scanning line pitch P in the vertical direction is set as the line interval as shown in FIG. 20C. Signal Y '(number of vertical lines is 52
5) are obtained as luminance signals for odd fields (first field).

Also for the even field EF (second field), two systems of luminance signals Y and Yo '(A and B in the same figure) obtained by simultaneously sampling different spatial areas by interlaced scanning are used alternately. Then, the non-interlaced luminance signal Y'for the second field (the number of vertical lines is 525) as shown in FIG.

For the color signals, for example, the following non-interlace processing is performed. In the odd field, the color difference signals RY and BY obtained during the odd field period are used as the color difference signals of the remaining 262.5 non-interlacing lines. In that case, the color difference signal of the previous line can be used as it is as the next line for non-interlacing, or the signal interpolated by the color difference signals obtained from the preceding and following lines (averaged signal)
Can also be used as a color difference signal for non-interlaced lines. Of course, non-interlaced color difference signals may be formed by field interpolation.

As described above, the non-interlaced color difference signal (RY) ',
Even if (BY) ′ is formed, the human sensitivity to the color component is much less sensitive than that to the luminance component. Therefore, even if such a process is performed, the image quality is deteriorated particularly with respect to the color component. Does not mean

The non-interlaced luminance signals Y ', (RY)', and (BY) 'are supplied to the encoder 60 shown in FIG. 17, and in this example, the EDTV conforming to the NTSC system or the next generation. EDTV (EDTV for wide screen
(EDTV2)), a non-interlaced television signal (composite television signal) TV 'for improving image quality is formed.

[0020]

By the way, in the structure of this TV camera for outputting a non-interlaced TV signal, an optical system which has been conventionally known is used as it is because four CCDs are used. Can not do it.

In this case, although only one CCD is added to the conventional optical system, it is necessary to construct it as a completely new optical system, resulting in a significant increase in cost. In particular, when the non-interlace function is applied to a simple type television camera, it is necessary to cut down the cost as much as possible, and it is not preferable to increase the number of CCDs.

Therefore, the present invention solves the conventional problems as described above, and in particular, when it is applied to a simple type television camera, it can be made non-interlaced without causing much cost increase. Is.

[0023]

In order to solve the above-mentioned problems, in the first invention, there is provided an image pickup device which outputs a luminance signal and an image pickup device which outputs a pair of component signals. And the component signal are output with being shifted by 1/2 scanning line pitch with respect to the vertical direction, and a non-interlaced luminance signal is generated by using the luminance signal and the component signal. It is characterized by the fact that it is done.

In the second invention, the image pickup device outputs a luminance signal and the image pickup device outputs a pair of component signals, and the luminance signal and the component signal are 1/2 scanned in the vertical direction. The luminance signal generated by using the luminance signal and the component signal, the luminance signal output from the image sensor, and the pair of component signals are independently output while being shifted by the line pitch. And a recording / reproducing section for recording as a channel.

[0025]

In FIG. 1, as the optical system 20, the conventional three-plate type optical system is used as it is. Luminance signal Y is output C
CC that outputs a pair of component signals with CD30
D31 and D32 are spatially displaced by 1/2 scanning line pitch (= P / 2) in the vertical direction. Then,
Since the CCDs 30 and 31 and 32 are sampled at spatially different positions, the luminance signal Y and the component signal R (or both B or R and B) are used so that the luminance signal Y is 1 1/2 luminance signal Y of the second system, which is an interlaced signal with a scanning line pitch shift
An auxiliary signal LD for generating o is formed.

The auxiliary signal LD is the signal combiner 50.
Is calculated as the luminance signal Y to form the second luminance signal Yo. The luminance signals Y and Yo are used alternately, as shown in FIG. 16B.
525 non-interlaced signals as shown in are generated.

With respect to the component signal, vertical position correction circuits 33 and 34 are used to perform vertical position correction so that the component signal becomes a signal on the same line as the luminance signal Y, and then the matrix circuit 40 performs 262.5 line position correction. A pair of color difference signals RY and BY having the number of lines is formed. Then, deinterlacing is performed using a means such as line interpolation.

By the above processing, even the three-plate type television camera having the conventional optical system 20 using the three CCDs is the non-interlaced television signal T for high image quality.
V'can be obtained.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an example of a simplified television camera according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of a simplified television camera according to the present invention, and an existing three-plate type optical system is used as the optical system 20 as it is. The figure is shown in simplified form.
Reference numerals 1 and 22 are half mirrors, and 23 and 24 are mirrors.
The optical image of the subject 10 separated by the optical system 20 is guided to the corresponding CCDs 30, 31, 32 to form an image.

A luminance signal Y is output from the CCD 30,
Component signals (primary color signals) such as R and B are output from the CCDs 31 and 32. CCD30 and CCD3
In this example, as shown in FIG. 2, the CCD 30 is compared with the CCD 3 so as to sample a spatial position different from that of 1, 32.
1, 32 are arranged only in the vertical direction V and spatially displaced relative to the scanning line pitch P in the vertical direction of the CCD by P / 2.

Since the CCD 30 and the CCDs 31 and 32 may be sampled at different spatial positions, not only the means for mechanically shifting them but also the CCD 30 and the CCDs 31, 3 are used.
The drive system may be configured so that the read timing with respect to 2 is shifted by 1/2 scan line pitch.

The luminance signal Y and the pair of primary color signals R and B are both interlaced signals having 262.5 vertical lines, and the luminance signal Y is supplied to the matrix circuit 40. The pair of primary color signals R and B are supplied to vertical position correction circuits 33 and 34, respectively, and are position-corrected so that they are located on the same line as the luminance signal Y. This position correction is specifically performed by line interpolation.

FIG. 3 shows an example of the vertical position correction circuit 33. A line interpolation signal is formed by the delay circuit 42 and the adder 43 for one horizontal period (1H), and this is an attenuator 44.
The level is reduced to 1/2 and output. By performing the line interpolation, the line interpolation signal is equivalent to being present at the intermediate position of each line, and the position correction in the vertical direction is performed.

FIG. 4 shows an example in which position correction in the vertical direction is performed using four lines, and three 1H delay circuits 42 are used.
a to 42c are provided, and after they are added, the level adjusting circuit 45 adjusts the output level so that it becomes the same level as the output of one line. The position-corrected primary color signals R and B in the vertical direction are supplied to the matrix circuit 40 together with the luminance signal Y and are converted into the luminance signal Y and a pair of color difference signals RY and BY.

In the example of FIG. 1, a red primary color signal R and a luminance signal Y
Is supplied to a generation circuit 36 for forming an auxiliary signal.

In this example, the auxiliary signal LD, which is a line difference signal, is generated by using a pair of luminance signals Y of front and rear horizontal lines and a primary color signal R of a horizontal line located in the middle of the horizontal lines.

As shown in FIG. 5A, if the upper and lower scanning lines relating to the luminance signal Y are a and c and the scanning line of the primary color signal R is b, the auxiliary signal LD is LD = b-{(a + c) / 2. } ... (1) is given.

The horizontal line of the generated auxiliary signal LD is the same as the scanning line position of the primary color signal R (since the scanning line position b is used as a reference). Then, the luminance signal Y is shown in FIG.
When the scanning line position of the newly generated auxiliary signal LD is indicated by a triangle as shown in FIG. 7B, the auxiliary signal LD and the luminance signal Y are not It turns out that they have an interlaced relationship. The luminance signal Y and the auxiliary signal LD are both 262.5 interlaced signals.

The auxiliary signal LD thus generated, the above-mentioned luminance signal Y, and a pair of color difference signals RY, B-
Y is supplied to the signal combiner 50 shown in FIG. 1 and a pair of color difference signals (R-
Y) ', (B-Y)' are formed. That is, in this signal combiner 50, a non-interlaced luminance signal Y'and a pair of color difference signals (RY) 'and (BY)' as shown in FIG. 5B are obtained.

Non-interlaced luminance signal Y '
And a pair of color difference signals (RY) 'and (BY)' are supplied to the encoder 60, and a television signal T for high image quality is provided.
V'is generated.

Here, in order to generate the auxiliary signal LD by using the luminance signal Y and the primary color signal R, the primary color signal R must be an image signal which can be approximated to the luminance signal Y. For that purpose, it is necessary to perform the monochrome image pickup in which the primary color signal R is equal to the luminance signal Y or the image pickup of the subject 10 having a low color saturation such that the primary color signal R is close to the luminance signal Y. As a result, the imaging conditions under which high resolution processing can be performed using the auxiliary signal LD are limited to some extent, and the present invention is applied to a simplified television camera.

FIG. 6 shows another example of the simplified television camera according to the present invention. In this example, a combiner 37 forms a signal in which a pair of primary color signals R and B are mixed, and this is combined with a luminance signal Y. The auxiliary signal LD is formed by.

The example of FIG. 7 is a modified example of FIG. 1 and is a case where the auxiliary signal LD is generated only when the degree of saturation is low. When the degree of saturation is low, that is, when the image is a black-and-white image, the primary color signal R is close to the luminance signal Y, so high resolution processing can be performed using the auxiliary signal LD.

As the degree of saturation increases, the level difference between the luminance signal Y and the primary color signals R and B increases, and the primary color signal R does not approximate the luminance signal Y. In this case, the auxiliary signal LD is used. On the contrary, the image quality is likely to deteriorate.

Therefore, the saturation detection circuit 70 is provided,
The saturation detection output SC controls the switching means 65. The auxiliary signal LD is supplied to the signal combiner 50 only when the degree of saturation is low. The degree of saturation is detected using the luminance signal Y and the pair of primary color signals R and B.

FIG. 8 shows a specific example of the saturation detection circuit 70. The luminance signal Y and the pair of primary color signals R and B are supplied to low pass filters 71, 72 and 73, respectively, and the bands in the horizontal and vertical directions are shown. Is limited, and then the subtractor 74 performs the difference processing of (Y−R), the difference output (Y−R) is supplied to the reference value comparator 76, and the absolute value of the difference output (Y−R) is calculated. A comparison output is obtained when the reference value is K (≈zero) or less.

Similarly, the subtractor 75 performs the difference processing of (Y-B), the difference output (Y-B) is supplied to the reference value comparator 77, and the absolute value of the difference output (Y-B) is obtained. Is the reference value K
The comparison output is obtained when (= zero) or less. The respective comparison outputs are supplied to the AND circuit 78, and the saturation detection output SC is obtained only when both comparison outputs are obtained. According to this configuration, the auxiliary signal LD is supplied to the signal combiner 50 only when the saturation level is zero or near zero.

FIG. 9 shows an embodiment in which the saturation detection range can be further expanded as compared with the example of FIG. Therefore, a ratio detection circuit 81 is provided, the ratio of the primary color signal R and the luminance signal Y is obtained, and the output (= Y / R) of the reciprocal thereof is supplied as a control signal of the variable attenuator 82, and the primary color signal is obtained. R
The level control is performed so that the level of 1 is as close as possible to the level of the luminance signal Y. The level-controlled primary color signal R'is supplied to the auxiliary signal generation circuit 36 to generate the auxiliary signal LD.
Is generated.

Further, a saturation detection circuit 83 is provided,
The same degree of saturation as described above is detected, and the level comparator 84 is provided to calculate the ratio (= R / Y) between the luminance signal Y and the primary color signal R. When the ratio between the luminance signal Y and the primary color signal R is 1 or more, it can be considered that the degree of saturation is high. Therefore, the detection output and the level ratio detection output are sent to the switching means 65 via the OR circuit 85 to the control signal SC.
Supplied as.

According to this structure, the auxiliary signal LD is supplied to the signal combiner 50 not only when the degree of saturation is low, but also when the ratio of the luminance signal Y and the primary color signal R is 1 or more. As shown in, the effective area in which the high image quality processing is performed is expanded as compared with the above-described embodiment.

FIG. 11 shows still another example of the present invention.
Although FIG. 11 is applied to the embodiment corresponding to FIG. 6 for the sake of convenience, it can be easily understood from the description below that it is applicable to FIG. 6, FIG. 7, and FIG. 9 as well as FIG. .

The embodiment shown in FIG. 11 is an auxiliary signal generation circuit 3
6 is provided with a high-pass filter 38 in the vertical direction, and the high-frequency component LDH of the auxiliary signal LD is not provided.
This is a case where the final luminance signal is generated by using. The reason will be described below.

Generally, the luminance signal Y is given by Y = 0.3R + 0.59G + 0.11B (2) On the other hand, when the pseudo luminance signal YRB is calculated from the primary color signals R and B supplied to the auxiliary signal generation circuit 36, YRB = aR + bB (3) When white is input, R = B = YRB. Therefore, a + b = 1 (4) The error ΔE between the true luminance signal Y and the pseudo luminance signal YRB is ΔE = Y−YRB = (0.3−a) R + (0.11− b) B + 0.59G (5) Since R, G, and B can independently take any value from 0 to 1, 0.3-a = 0.11-b ... When (6) is satisfied, the error ΔE becomes the minimum. Therefore,
From equations (4) and (6), a = 0.595 b = 0.405 ... (7)

Therefore, the error ΔE becomes maximum when only the G primary color signal or only its complementary color magenta is input. Therefore, when a non-interlaced luminance signal is generated by using the auxiliary signal LD itself, a true error is generated. When the luminance signal Y is 0.595, the pseudo luminance signal YRB becomes zero.
At the time of magenta input, the true luminance signal Y is 0.405, while the pseudo luminance signal YRB is 1.

From this, the pseudo luminance signal Y
When RB is used as it is as the auxiliary signal LD, an error in a colored portion, particularly in a high saturation portion causes image quality deterioration.

To reduce this image quality deterioration, the auxiliary signal L
The signal containing the color component may be removed from D. Therefore, as shown in FIG. 11, a vertical high-pass filter 38 is provided in the subsequent stage of the auxiliary signal generation circuit 36 to remove the low frequency component of the auxiliary signal LD, and a non-interlaced luminance signal is generated only by the high frequency component. To be done.

Since the color subject image contains a lot of low-frequency components which are color components, this filtering process causes deterioration of image quality even when an image of only the primary color signal G or its complementary color magenta is picked up. Does not cause.

FIG. 12 is a block diagram showing an example in which the present invention is applied to a television camera having a VTR integrated type (VTR integrated type television camera) 70. In this example, the basic configuration of FIG. 1 is applied, and the luminance signal Y output from the matrix circuit 40 and the pair of color difference signals RY, B-
Y and the second system auxiliary signal LD are supplied to the VTR 80, which is a recording / reproducing unit, and these are independently recorded in different channels.

As the VTR 80, it is possible to use a so-called D1 format digital VTR for recording / reproducing a component television signal with a slight modification. That is, a recording / reproducing system (a system for recording / reproducing a luminance signal and a pair of color difference signals PR, PB) conforming to the D1 format is further provided with a recording / reproducing system for the auxiliary signal LD (including a magnetic head system for recording / reproducing). ) Is a digital VTR which is recorded / reproduced in a completely new format newly added.

Therefore, in this case, the auxiliary signal LD has the same sampling frequency (13.
The signal is sampled at 5 MHz), digitized, and subjected to various signal processing (shuffling processing, error correction processing, etc.). Since the auxiliary signal LD can be expected to have a sufficient effect only with the low frequency component, the signal band can be limited, and 6.75 MHz, which is half the frequency of the luminance signal Y, can be used as the sampling frequency. Therefore, the digital VTR in this case is a (4: 2: 2: 2) type digital VTR.

The luminance signal Y and the pair of color difference signals R-Y and B-Y reproduced on the four channels and the auxiliary signal LD of another system are supplied to the signal combiner 50 for deinterlacing as described above. The signal processing is performed, and thereafter the encoder 60 generates the NTSC system image quality enhancing television signal TV ', as described above.

A configuration as shown in FIG. 13 can be considered in order to obtain the current television signal TV instead of the high image quality television signal TV. In this case, the current television signal TV is created by performing an encoding process using the luminance signal Y and the pair of color difference signals RY and BY among the signals of the four channels reproduced by the VTR 80.

In the case of the VTR-integrated television camera 70, the signal combiner 50 and the encoder 60 can be separately constructed, and in that case, the television camera 7 is used.
0 can be made more compact, and portability is improved accordingly.

FIG. 14 shows a modification of FIG. 12, in which the configuration of the filtering process corresponding to FIG. 11 is applied to the VTR-integrated television camera 70. Detailed description thereof will be omitted. It can be easily understood that the configuration of FIG. 11 can be applied to FIG. 13.

In each of the above-described embodiments, the R and B primary color signals are illustrated as a pair of component signals, but the present invention is also applicable to a television camera which outputs other primary color signals, for example, R and G primary color signals as component signals. The invention can be applied. When the primary color signals R and G are used, since the ratio of G to the luminance is large, it is possible to calculate the pseudo luminance signal with higher accuracy than when the primary color signals R and B are used. Other component signals may be used.

[0067]

As described above, in the television camera according to the present invention, the luminance signal and the component signal obtained from the image pickup device are output with a shift of 1/2 scanning line pitch with respect to the vertical direction. In addition, the non-interlaced luminance signal is generated by using the auxiliary signal LD generated by using the luminance signal and the component signal and the luminance signal output from the image sensor. is there.

According to this, the luminance signals for two systems can be formed without changing the driving frequency used in the existing image pickup device driving system, and since the signals are simply synthesized, non-interlace is performed. It is also relatively easy to form the signal.

Therefore, since the television signal for high image quality can be formed by utilizing the existing image pickup optical system and signal processing system, the circuit scale can be reduced and the cost can be reduced. It has the practical benefit of being able to provide a TV camera with integrated camera and VTR.

Therefore, the present invention is suitable for application to a television camera for broadcasting stations, an integrated video camera for data collection, etc., and in addition to a television or EDTV having a current aspect ratio, it has an aspect ratio of 16: 9. It is particularly useful as a source for playback equipment such as the next-generation EDTV.

[Brief description of drawings]

FIG. 1 is a system diagram showing an example of a simplified television camera according to the present invention.

FIG. 2 is a diagram showing a relative spatial arrangement relationship of CCDs.

FIG. 3 is a connection diagram showing an example of a vertical position correction circuit.

FIG. 4 is a connection diagram showing an example of a vertical position correction circuit.

FIG. 5 is an explanatory diagram of non-interlace processing.

FIG. 6 is a system diagram showing another example of the simplified television camera according to the present invention.

FIG. 7 is a system diagram showing another example of the simplified television camera according to the present invention.

FIG. 8 is a system diagram of a saturation detection circuit.

FIG. 9 is a system diagram showing another example of the simplified television camera according to the present invention.

FIG. 10 is an explanatory diagram of a chromaticity diagram.

FIG. 11 is a system diagram showing another example of the simplified television camera according to the present invention.

FIG. 12 is a system diagram of a VTR-integrated television camera according to the present invention.

FIG. 13 is a system diagram showing another example of a VTR-integrated television camera.

FIG. 14 is a system diagram showing another example of a VTR-integrated television camera.

FIG. 15 is an explanatory diagram of interlaced scanning.

FIG. 16 is an explanatory diagram of non-interlaced scanning.

FIG. 17 is a system diagram showing an example of a television camera according to the description of the present invention.

FIG. 18 is a system diagram showing an example of an optical system used at that time.

FIG. 19 is a diagram showing a relative spatial arrangement relationship of CCDs.

FIG. 20 is an explanatory diagram of non-interlace processing.

[Explanation of symbols]

10 subject 20 Optical system 30-32 CCD 36 Auxiliary signal generation circuit 40 matrix circuit 50 signal combiner 60 encoder 80 Digital VTR for D1 Luminance signal of Y, Yo 2 system LD auxiliary signal

Front page continuation (72) Inventor Akihiro Hori 14-2 Nibancho, Chiyoda-ku, Tokyo Within Japan Television Broadcasting Network Co., Ltd. (56) Reference JP-A-5-236482 (JP, A) JP-A-2-46084 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04N ^9/ 04-9/11

Claims (5)

(57) [Claims] 1. An image pickup device which outputs a luminance signal and an image pickup device which outputs a pair of component signals, wherein the luminance signal and the component signal are shifted by 1/2 scanning line pitch with respect to the vertical direction. And a non-interlaced luminance signal is generated using the luminance signal generated using the luminance signal and the component signal and the luminance signal output from the image sensor. A simplified TV camera characterized by being made as described above. 2. An image pickup device which outputs a luminance signal and an image pickup device which outputs a pair of component signals, wherein the luminance signal and the component signal are shifted by ½ scanning line pitch with respect to the vertical direction. Is output in the state, and the high frequency component of the luminance signal generated using the luminance signal and the component signal and the luminance signal output from the image sensor are used for non-interlace. A simplified television camera characterized in that a converted luminance signal is generated. 3. The image pickup device for the luminance signal and the image pickup device for the component signal are arranged so as to be spatially displaced by a 1/2 scanning line pitch in the vertical direction. The simplified TV camera described. 4. An image pickup device which outputs a luminance signal and an image pickup device which outputs a pair of component signals, wherein the luminance signal and the component signal are shifted by 1/2 scanning line pitch with respect to the vertical direction. The luminance signal generated using the luminance signal and the component signal, the luminance signal output from the image sensor, and the pair of component signals are recorded as individual channels. A VTR-integrated television camera having a recording / reproducing unit. 5. An image pickup device which outputs a luminance signal and an image pickup device which outputs a pair of component signals, wherein the luminance signal and the component signal are shifted by 1/2 scanning line pitch with respect to the vertical direction. The high frequency component of the luminance signal generated by using the luminance signal and the component signal, the luminance signal output from the image sensor, and the pair of component signals. A television camera with a VTR integrated structure, which is provided with a recording / reproducing unit for recording each as a single channel.