JPH06133230A - High definition picture pickup device - Google Patents

Abstract

PURPOSE:To obtain the high definition picture image pickup device having both functions for a still picture and a moving picture by providing a solid-state image pickup means, a still picture recording and reproduction means and a moving picture recording and reproducing means to the device and revising the read system of the image pickup elements. CONSTITUTION:A signal from a magneto-optical disk 16 or a magnetic tape 36 is decoded and subjected to picture element interpolation by PCM decode interpolation sections 19, 39, D/A-converted by HD video code sections 20, 40 and signal form is converted into a form of a prescribed HDTV video signal. In the case of a still picture, since no motion is in existence, no picture blur takes place even with interpolation by using a picture element of one preceding field. In the case of a moving picture, the read signal sequence of picture elements is made different from that of the still picture and the signals are read by two lines each at 1/120sec being a half of one field period of an HDTV signal and they are averaged. Thus, the vertical resolution is somewhat deteriorated in the case of the moving picture compared with the case of the still picture, and the reading method is adopted, in which the time for storing each picture element is reduced and a picture blur caused when an object with a fast moving is picked up is emphasized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-definition image pickup apparatus capable of picking up a high-definition image using a plurality of solid-state image pickup elements and recording and reproducing it as a still image or a moving image.

[0002]

2. Description of the Related Art An electronic still camera using a floppy magnetic disk is used as a home device for recording and reproducing still images by using a solid-state image pickup device, and a magnetic device is used as a home device for recording and reproducing moving images. Video movies using tape have been put into practical use.

Here, the current image pickup device, especially the electronic still camera for still images, is output as an NTSC standard signal from the image pickup device, and therefore has a larger resolution than the silver-lead film type still camera. There is a strong demand for higher image quality.

On the other hand, in recent years, high quality and high quality (also called high definition, the aspect ratio of the screen is conventionally 4: 3 to 1).
The HDTV (High Definition TV) system, which is a television system that is set to 6: 9 wide), is being developed and put into practical use, and home-use high-definition television receivers are also being announced. Regarding this HDTV system, for example, "Journal of Television Society", Vol. 44, N
o. 7 (1990); pp. 858-860, "6.1 H.
DTV ”and the like.

By the way, in order to realize a high-definition image pickup device including such a high-definition television system,
A solid-state image pickup element of about 400,000 pixels in a current home image pickup device is not sufficient. However, 16 for high definition
A solid-state image sensor of about 0,000 pixels is currently in the research stage and cannot be used for home use at present. Therefore, as an example of the standard NTSC system as a technique for obtaining a high resolution by using a solid-state image pickup device having a small number of pixels, the proceedings of the "Television Society 1982 National Convention" Proceedings: 4-9, 99-100 "DUAL-" As described in "GREEN High-Resolution CCD Color Camera", the conventional method is to interpolate the pixels by horizontally arranging the solid-state image sensor using multiple plates (three plates in this case). Used from.

In this example, red (R) and blue (B) color filters are attached in stripes on one of the three CCDs to obtain R and B channel signal components, and the remaining two CCDs. Green (G) channel (G included in the luminance signal
(The ratio of channels is higher than other R and B channels)
Have been assigned. The pixels of the two G-channel CCDs are horizontally shifted to improve the substantial resolution.

[0007]

The conventional home-use image pickup devices described above each have a structure in which the image pickup device and the recording / reproducing portion are integrated, and each has only a single function of still image pickup or moving image pickup. I don't have it. Therefore, if the user wants both functions, it is necessary to carry one by one at the same time, which is inconvenient in terms of weight and volume. In addition, even though the image pickup portions overlap, both the still image pickup device and the moving image pickup device must be purchased, which imposes a heavy burden on the user.

Further, the above-mentioned image pickup device is for the standard NTSC system, and a high-definition one for home use has not been put to practical use.

An object of the present invention is to provide a single solid-state image pickup device or a device equivalent thereto, which has a single image pickup means capable of taking a substantially high-definition image, and the image pickup means and still image recording. A still image recording / playback device by combining playback means
Another object of the present invention is to provide a high-definition image pickup device which can realize a moving image recording / reproducing device by combining the same image pickup device and moving image recording / reproducing device.

[0010]

In order to achieve the above object, in the present invention, an image pickup means for outputting a video signal using a plurality of solid-state image pickup devices, and a still image recording for recording the video signal as a still image. A reproducing means and a moving picture recording / reproducing means for recording a video signal as a moving picture are provided, and a means for changing the reading method of the solid-state imaging device is provided so as to match the characteristics of a still picture and a moving picture. Further, there is provided means for changing the compression ratio when the output signal output from the image pickup means is compressed and recorded according to the type of the recording medium used in the still image recording / reproducing means or the moving image recording / reproducing means to be combined.

[0011]

In the image pickup section, a plurality of solid-state image pickup devices (three plates in this case) are used, and two of them are spatially pixel-shifted in both horizontal and vertical directions.
The read video signal is sent to a recording / playback unit for a still image or a moving image, and if necessary compressed and recorded on a recording medium. The information recorded on the recording medium is high-definition (H
D) It becomes a video signal. Further, when the above image pickup unit is used, the image pickup unit and the still image recording / reproducing unit are integrally used when recording a still image, and when the moving image is recorded, the image pickup unit and the moving image recording / reproducing unit are integrated. By using the same, the image pickup section is commonly used.

Then, the reading method of the image pickup section is changed to a method in which static resolution is emphasized in the case of still image shooting / recording in which the motion of the subject is small, and a method in which blurring due to motion is reduced in the case of moving image shooting / recording. . Also, during reproduction, the above-described pixel interpolation method is similarly changed between still image recording and moving image recording.

Further, the recording medium having a storage capacity having a margin for the amount of information to be recorded and the recording medium having no storage capacity are recorded while changing the compression ratio, thereby effectively utilizing the recording medium. To do so.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A high-definition image pickup device according to the present invention will be described below.
Embodiments will be described with reference to the drawings. FIG. 1 is a block diagram of a still image recording / reproducing apparatus having an image pickup unit according to this embodiment, and FIG.
FIG. 2 is a block diagram of a moving image recording / reproducing apparatus having the same image pickup unit as in FIG. 1 according to the present embodiment.

In FIG. 1, reference numeral 1 is an image pickup section, and
Reference numerals 3 and 4 are solid-state image pickup devices (CCD) of about 400,000 pixels which are charge transfer devices. Then, the CCD for the G channel (hereinafter, CCD [G
1] 2, CCD [G2] 3), and 4 is R in which R and B color filters are attached in a horizontal stripe shape.
And a CCD for the B channel (hereinafter referred to as CCD [RB] 4). Reference numeral 5 denotes a signal processing unit, which is provided for each CCD [G1]
Signal g read from [G2], [RB] 2, 3, 4
1, g2 and rb will be described later in detail in a still image recording / reproducing unit 10
To the video signal output c. 6 is a reading unit,
A method of reading signals from the CCDs [G1], [G2], [RB] 2, 3, 4 is determined. Reference numeral 7 denotes a control unit, which outputs signals a and b based on a command signal d from the still image recording / reproducing unit 10.
To control the reading unit 6 and the signal processing unit 5.

The image pickup section 1 and the still picture recording / reproducing section 10 are constructed so as to be attachable / detachable, and by integrating the both 1, 10 with a command signal d from the still picture recording / reproducing section 10, the still picture is reproduced. Imaging is instructed to the imaging unit 1, and thereby a still image recording / reproducing device (high-definition electronic still camera) having the imaging unit is constructed.

FIG. 2 shows the structure when the same image pickup unit 1 as that shown in FIG. 1 is used and the moving image recording / reproducing unit 30 is integrated. In this case, a command signal from the moving image recording / reproducing unit 30 is used. At d ′, the image capturing unit 1 is instructed to capture a moving image, whereby a moving image recording / reproducing apparatus (high-definition video movie) having the image capturing unit is constructed.

FIG. 3 shows each CCD [G] in the image pickup section 1 of FIG.
1] 2, CCD [G2] 3, CCD [RB] 4 are arranged, and as shown in FIG.
The light that has passed through is separated into three parts by the color separation prism 51 as shown by the dotted line, and each CCD [G1] 2, CCD [G
2] 3, Focus on CCD [RB] 4.

Next, two CCDs for the G channel [G
1] 2, CCD [G2] 3 and the mutual pixel arrangement will be described with reference to FIG. In FIG. 4, CC
Pixels of D [G1] 2 are represented by circles, and pixels of CCD [G2] 3 are represented by triangles. In this embodiment, each CCD is
Is 800 in the horizontal direction and 518 in the vertical direction, for a total of 8
00 x 518 pixels (4 pixels, which is the same as the current home CCD
It has an aspect ratio of 16:
It is 9.

Although a solid-state image pickup device (CCD) having an aspect ratio of 16: 9 will be described here as an example, a conventional home-use solid-state image pickup device (aspect ratio of 4: 3, the same number of pixels, approximately 400,000). When the pixel) is used as it is, by using an anamorphic lens before the lens 50 in FIG. 3, it is possible to capture a substantially 16: 9 image.

In FIG. 4, x ₁ to x ₈₀₀ are CCDs
[G1] The coordinates of the pixel of 2 in the horizontal direction are changed from y ₁ to y _518.
Represents the vertical coordinate of the pixel of CCD [G1] 2, the pixel at the point of the circled coordinate (x ₁ , y ₁ ) is 61, and the coordinate (x
The pixel at the point of ( ₁ , y ₂ ) is 62, and the coordinates (x ₂ , y)
The pixel at the point ₁ ) is 63, and the pixel at the point (x ₂ , y ₂ ) is 64. Similarly, x ₁ 'to x ₈₀₀ ' are the horizontal coordinates of the pixels of the CCD [G2] 3 marked with a triangle.
₁ 'y ₅₁₈ from' indicates the vertical coordinates of the pixels of the CCD [G2] 3.

Two CCDs for the G channel [G
1] 2 and CCD [G2] 3 are mounted on the color separation prism 51 of FIG. 3 by shifting the pixels so that they are displaced from each other by half the pixel pitch in the horizontal and vertical directions as shown in FIG. There is. CC for R and B channels
The pixel configuration of D [RB] 4 is CC for G channel.
D [G1] 2, CCD [G2] 3, and R
A red and blue stripe filter, which is a technique conventionally used for separating B and B, is alternately attached in each horizontal (horizontal) direction of the CCD, and the R channel and the B channel are taken out for each line. It is composed. Here, since most of the resolution is determined by the G channel (the ratio of the G channel included in the luminance signal is as high as about 70% in the HD signal), the read operation from the CCD for the G channel will be described below.

Approximately 1.6 million pixels of 800 × 2 in the horizontal direction and 518 × 2 in the vertical direction, including the space between circles and triangles in FIG.
It is the total number of pixels that form a high-definition image of the HDTV system or the like. However, it is not necessary to read all of them and record them on the recording medium, but about half of them, about 800,000 pixels (in a spatially sub-sampled and compressed form), that is, the total of circles and triangles in FIG. 4 is recorded. , A sufficient image can be obtained for human vision even if the circle mark and the triangle mark are complemented at the time of reproduction.

Next, a method of reading all the pixels indicated by circles and triangles in FIG. 4 will be described with reference to FIGS. 4 and 5 for the case of the still image in FIG. FIG. 5 shows the CCD [G1] 2 of FIG.
It is an enlarged view of the upper left part of (circle mark). Between the pixels (photoelectric conversion units) 61, 62, ... And the pixels 63, 64 ,.
... (each part is called a register) is placed. First, in the CCD [G1] 2, y ₁ , y ₃ , ... In 1/220 seconds (or a short time t1 required for signal processing), which is half the 1-field period 1/60 seconds of the HDTV signal.
A total of 518/2 odd-numbered lines are read and output to the signal processing unit 5 as the signal g1 in FIG. Then, in the next 1/120 second (or a short time t2 required for signal processing), a total of 518/2 of even rows of y ₂ , y ₄ , ...
The main portion is read and the signal processing unit 5 outputs the signal g1 in FIG.
Output to.

Similarly, in the CCD [G2] 3, a total of 518 of odd rows of y ₁ ', y ₃ ', ... Is obtained in 1/120 seconds of the same time (or a time t1 which is short as much as necessary for signal processing).
/ 2 lines are read and output to the signal processing unit 5 as the signal g2 in FIG. Then, in the next 1/120 second (or a short time t2 required for signal processing), y ₂ ', y
Read the total of 518/2 lines in the even lines of ₄ '...
It is output to the signal processing unit 5 as the signal g2 in FIG.

Therefore, by the signals g1 and g2, all pixels (about 80 pixels) marked with circles and triangles in one field period of 1/60 seconds.
(1 million pixels) of information can be obtained. Note that, as mentioned above,
The information can be taken out only every other even number because the vertical transfer unit in FIG. 5 corresponds to only two registers for one pixel, and therefore, for example, charges corresponding to the amount of light accumulated in the pixels 61 and 62 are stored. This is because even if they are moved to the respective registers 65 and 67, they are mixed when they are transferred in the vertical direction (this is called mixed read). Therefore, each pixel 61, 6
In order to read 2 independently, the CCD is alternately read at twice the normal speed (1/120 seconds) as described above. Therefore, the time during which each pixel is accumulated is 1/60 second.

The operation of inputting and recording the video signal c obtained by the above reading method into the still picture recording / reproducing section 10 will be described below.

In the still picture recording / reproducing section 10 of FIG.
Reference numeral 1 denotes a recording system, and the video signal c from the imaging unit 1 is A / D converted by the memory unit 12 and then temporarily stores information for about 800,000 pixels. From this memory unit 12, first 1/60
518 lines in odd rows in seconds, 51 in even rows in the next 1/60 second
A signal similar to the HDTV signal is obtained by reading out eight lines, and the encoder 13 encodes this signal into a digital signal in the PCM format. Thereafter, the output signal from the encoding unit 13 is subjected to processing such as modulation in the digital magneto-optical recording unit 14 so as to have a format suitable for recording on the magneto-optical disk. 16 is recorded. The memory unit 12 has about 8
Information of 0,000 pixels is stored, and the method of reading the information does not have to be the above method, and it goes without saying that it may be adapted to the method of the encoding unit. Here, the magneto-optical disk 1
Since 6 has a large storage capacity and the information amount of a still image is smaller than that of a moving image, in the present embodiment, when performing PCM encoding, compression processing is not performed by a command from the control unit 15 that controls each unit, or the compression ratio is The small method is used to prevent image quality deterioration.

Although it is possible to reduce the weight by using a memory card using a semiconductor memory instead of the magneto-optical disk, since the semiconductor memory has a small capacity at present, in this case, the control unit 15 shown in FIG. The unit 13 may be controlled to change to a method having a high compression rate so that the required number of sheets can be recorded.

Next, the operation of reproducing the still image recorded on the magneto-optical disk 16 by using the reproducing system 17 will be described. Here, FIG. 1 shows an example in which the image pickup unit 1 and the recording system 11 and the reproducing system 17 are integrated, but the reproducing system can be used even when the image pickup unit 1 is removed, and a magneto-optical disk is further used. It is also possible to use a recording system unit and a reproduction system unit that are provided separately and to use only the image pickup unit 1 and the recording system unit in combination at the time of shooting. Further, the signal read from the memory unit 12 can be FM-modulated and analog-recorded without being encoded. The signal from the magneto-optical disk 16 is D / A converted by the digital reproducing section 18, reproduced as a digital signal, decoded and pixel-interpolated by the PCM decoding interpolation section 19 including a memory, and D / A converted by the HD video decoding section 20.
A-converted and converted into a predetermined HDTV video signal format (for example, R, G, B or Y, P _B , P _R, etc.) to become an output signal e, which is displayed on a monitor television or the like.

The interpolation method in the PCM decoding interpolation unit 19 in the case of a still image executed by a command of the control unit 21 which controls each unit is performed as shown in FIG. That is, P
In the memory of the CM decoding interpolation unit 19, information about a total of about 800,000 pixels, which are circle marks and triangle marks in FIG. 6, are accumulated.
Therefore, in the case of a still image, about 800,000 pixels remaining in the portion marked with X are interpolated by the average value of upper and lower pixels (pixels one field before). For example coordinates 'by the average value of the pixels of the portion of the circle of the coordinates (x _2, y ₁₎ and (x _2, y _2), the coordinates _{(x 1 (x 2, y} 1)', y 2) portion of the Is the coordinate of the triangle (x ₁ ', y
₁ ') and (x ₁ ', y ₂ ') are interpolated by the average value of the pixels.

Since there is no movement in the case of a still image, there is no problem even if the image is interpolated with the pixel of the preceding field, and there is no problem. After interpolating in this way, in the first field y ₁ ,
y ₂ , ... row, y ₁ ', y in the next second field
₂ ', ... Read about 1.6 million pixels, 103
High-definition signals similar to the six HDTV signals can be reproduced as the output signal e in FIG. The above is the description of the operation when a still image is captured and recorded / reproduced.

Next, the operation when the moving image of FIG. 2 is picked up and recorded and reproduced will be described below. The same components in each drawing are designated by the same reference numerals as those described above.

The image pickup unit 1 shown in FIG. 2 is the same as that shown in FIG.
By integrating this with the video recording / playback unit 30,
The command signal from the moving picture recording / reproducing unit 30 becomes d'which commands a moving picture, and based on this, the three CCDs [G1] 2, C
In order to change the reading method of CD [G2] 3 and CCD [RB] 4 so as to be suitable for moving images, a signal a'is output from the control unit 7 to the reading unit 6 and a signal b'is output to the signal processing unit 5. To be done.

Extracting the information of all the pixels indicated by circles and triangles in FIG. 4 is the same as in the case of a still image. However, in the case of a moving image, its reading method, that is, the order of pixel read signals is different from that in the case of a still image. . As described above, in the case where the charges accumulated in the pixels 61 and 62 in FIG. 5 are simultaneously transferred to the registers 65 and 67, the added information of the pixels 61 and 62, that is, the y ₁ row and the y ₂ is read as mixed reading.
The average value information of the row is obtained. Using this, the reading method for a moving image is performed as follows in FIG.

First, in CCD [G1] 2 (circle mark), HD
1/1 of the 1-field period 1/60 second of TV signal
20 seconds (or a short time t required for signal processing)
In 3), 518/2 sets for every two lines of y ₁ + y ₂ , y ₃ + y ₄ , ... Are read and output to the signal processing unit 5 as the signal g1 ′ in FIG. Then, in the next 1/120 second (or a time t4 which is short by the amount required for signal processing),
y ₂ + y ₃ , y ₄ + y ₅ , ... 518 / for every two lines
Two sets are read and output to the signal processing unit 5 as the signal g1 ′ in FIG.

Similarly, the CCD [G2] 3 (triangle mark)
In 1/120 seconds (or a time t3 which is short enough for signal processing), y ₁ '+ y ₂ ', y ₃ '+ y ₄ ', ... 2
Scan 518/2 lines for each line to obtain the signal g in FIG.
2 ′ is output to the signal processing unit 5. And the next 1 /
120 seconds (or a short time t required for signal processing)
In step 4), 518/2 sets for every two lines of y ₂ '+ y ₃ ', y ₄ '+ y ₅ ', ... Are read and the signal g of FIG. 2 is read.
2 ′ is output to the signal processing unit 5.

Therefore, 1 is obtained by the signals g1 'and g2'.
All information of circles and triangles in the field period 1/60 seconds (2
Are averaged line by line). Compared to the case of a still image, the vertical resolution is slightly degraded because it is averaged every 2 lines, but the time during which each pixel is accumulated is 1/1
Since the speed is as high as 20 seconds, the reading method has been changed to place importance on image blur when shooting a fast-moving subject such as a moving image.

The operation of inputting and recording the video signal c'obtained by the above reading method into the moving picture recording / reproducing section 30 will be described.

In the moving picture recording / reproducing section 30 of FIG.
Is a recording system, and after the video signal c ′ from the image pickup unit 1 is A / D converted in the memory unit 32, information of about 800,000 pixels (averaged by two lines) is temporarily stored. . From this memory unit 32, first, in 1/60 seconds, 518
In the next 1/60 second, 518 lines in an even numbered row are read out to obtain a signal similar to the HDTV signal, and the encoder 33 encodes this signal into a digital signal in the PCM format. Thereafter, the output signal from the encoding unit 33 is subjected to processing such as modulation in the digital magnetic recording unit 34 so as to have a format suitable for recording on the magnetic tape, and is recorded on the magnetic tape 36 by the digital magnetic recording unit 34. It Since the magnetic tape has a large storage capacity and the information amount of a moving image is larger than that of a still image, when a PCM encoding is performed on a moving image, a method with a high compression rate is given by a command from the control unit 35 that controls each unit. By compressing the information amount by about half by a compression method such as DCT (discrete cosine transform) which is used more widely, it is possible to realize long-time recording required for home use.

Next, the operation of reproducing the moving image recorded on the magnetic tape 36 by using the reproducing system 37 will be described. Here, in FIG. 2, the imaging unit 1, the recording system 31, and the reproduction system 37 are shown.
However, the reproducing system can be used even when the image pickup unit 1 is removed, and a recording system unit and a reproduction system unit each having a magnetic tape are separately provided. It is also possible to use only in combination with the recording unit. The signal from the magnetic tape 36 is D / A converted by a digital reproducing unit 38 and then reproduced as a digital signal, decoded and pixel-interpolated by a PCM decoding interpolation unit 39 including a memory, and D / A converted by an HD video decoding unit 40. Certain HDTV video signal formats (eg R, G, B or Y, P _B , P _R
Etc.) into an output signal e ′, which is displayed on a monitor TV or the like.

PCM decoding interpolating unit 3 for a moving image executed by a command from the control unit 41 which controls each unit.
The interpolation method in 9 is performed as shown in FIG. That is, PC
Information of a total of about 800,000 pixels (averaged by two lines) of the pixel circle mark and the triangle mark in FIG. 7 is stored in the memory of the M decoding interpolation unit 39. Therefore, in the case of a moving image, about 800,000 pixels remaining in the portion marked with X are interpolated by the average value of the pixels before and after. For example, the part of the coordinates (x ₂ , y ₁ ') is the average value of the pixels of the coordinates (x ₁ ', y ₁ ') and (x ₂ ', y ₁ ') of the triangular mark, and the coordinates (x ₁ ', y ₂ ) is the coordinates of the circle (x
Interpolation is performed using the average value of the pixels of ( ₁ , y ₂ ) and (x ₂ , y ₂ ).

Since a moving image has a motion unlike a still image, it is interpolated in a state where there is no image blur between pixels immediately before and immediately after in the horizontal direction on the same line. After interpolating in this way, y ₁ , y ₂ , ... Rows are read in the _first field and y ₁ ', y ₂ ',. A high definition signal similar to the HDTV signal can be reproduced as the output signal e ′ in FIG.

In the above description, the still image recording / reproducing unit 10 or the moving image recording / reproducing unit 30 shown in FIG. 1 is integrated with the image pickup unit 1, but both 10 and 30 are stationary magneto-optical disk recording / reproducing devices. Alternatively, it is of course possible to adopt the form of a magnetic tape recording / reproducing device (VTR). In this case, it goes without saying that the input of the signals c and c ′ from the image pickup unit 1 is accepted, but in addition to this, various input terminals are provided and a high-definition signal such as an HDTV signal or an NTSC signal from the outside is supplied to the scanning line. A circuit for performing conversion or aspect ratio conversion is provided as necessary, and by inputting it in the middle of the memory unit, recording and reproduction can be performed by the same processing thereafter.

[0045]

As described above, according to the present invention, it is possible to realize an image pickup section capable of substantially high-definition image pickup by using a plurality of current CCDs. A still image recording / reproducing apparatus can be realized by combining the recording / reproducing section, and a moving image recording / reproducing apparatus can be realized by combining the same image pickup section and moving image recording / reproducing section in the optimum operating state. Therefore, when a still image and a moving image need to be captured at the same time, they are smaller and lighter than conventional ones, convenient to carry, and low cost.

[Brief description of drawings]

FIG. 1 is a block diagram of a still image recording / reproducing apparatus having an image pickup unit according to an embodiment of the present invention.

FIG. 2 is a block diagram of a moving picture recording / reproducing apparatus having an image pickup unit according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing the arrangement of CCDs in the image pickup unit in FIGS.

FIG. 4 is two CCDs for the G channel shown in FIGS.
FIG. 3 is an explanatory diagram showing the pixel configuration of FIG.

5 is an enlarged explanatory view of an upper left portion of the CCD shown in FIG.

FIG. 6 is an explanatory diagram illustrating an interpolation method of a PCM decoding interpolation unit according to an embodiment of the present invention.

FIG. 7 is an explanatory diagram for explaining another interpolation method of the PCM decoding interpolation unit according to the embodiment of the present invention.

[Explanation of symbols]

 1 image pickup unit 2 G channel CCD [G1] 3 G channel CCD [G2] 4 R and B channel CCD [RB] 5 signal processing unit 6 readout unit 7 control unit 10 still image recording / reproducing unit 11 recording System 15 Control unit 16 Magneto-optical disk 17 Playback system 19 PCM decoding interpolation unit 30 Video recording / playback unit 31 Recording system 35 Control unit 36 Magnetic tape 37 Playback system 39 PCM decoding interpolation unit

Claims (5)

[Claims] 1. An image pickup device for outputting a video signal using a plurality of solid-state image pickup devices, a still image recording / reproducing device for recording the video signal as a still image, and a moving image recording / reproducing device for recording the video signal as a moving image. And a case in which the image pickup unit and the still image recording / reproducing unit are combined into a still image recording / reproducing device, and a case in which the image capturing unit and the moving image recording / reproducing unit are combined into a moving image recording / reproducing device. A high-definition image pickup device comprising means for changing a reading method of a solid-state image pickup element used as the image pickup means. 2. The method according to claim 1, wherein a reproduction video signal is reproduced from the still picture recording / reproducing means recorded as a still picture by pixel interpolation, and a reproduction picture from the moving picture recording / reproducing means recorded as a moving picture. A high-definition image pickup device, wherein an interpolation method of a reproduced high-definition video signal is changed depending on whether the signal is pixel-interpolated and reproduced. 3. The high-definition image capturing apparatus according to claim 1, wherein the image capturing unit and the still image recording / reproducing unit, or the image capturing unit and the moving image recording / reproducing unit have a detachable form. . 4. The compression ratio for compressing and recording an output signal output from the image pickup unit according to claim 1, of a recording medium used in the still image recording / reproducing unit or the moving image recording / reproducing unit. A high-definition image pickup device, which is changed according to the type. 5. The still image recording / reproducing device or the moving image recording / reproducing device according to claim 1, wherein the still image recording / reproducing device or the moving image recording / reproducing device has an external input terminal, and not only an output signal from the imaging device but also an external high-definition video signal or NTSC. A high-definition image pickup device capable of recording a signal.