JPH02146874A - Electronic still camera - Google Patents

Abstract

PURPOSE:To attain proper recording in response to the photographing speed and quantity of picture to be photographed by adopting the constitution such that plural recording media with different recording speeds are selected as recording media. CONSTITUTION:A video signal from an image sensor 12 is stored once in a buffer memory 18 via signal processing section 14 and an A/D converter 16. In the case of recording a picture by high speed consecutive photographing, the operator inputs a command of selecting a semiconductor memory 40 from an operation display section 22. The control section 20 receives the signal from the display section 22 to output a control signal to a switch circuit 24 and the circuit 24 outputs an output 108 of the memory 18 to a memory 40 via a compression section 42. On the other hand, in the case of photographing not at a high speed, the operator inputs a command representing the selection of an optical card 36. The control section 20 receives the signal, and instructs so as to input the output from the memory 18 into the optical card 36. Moreover, when the operator inputs a command to select a magnetic disk 50, the control section 20 outputs an output of the memory 18 to a magnetic disk 58.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to an electronic still camera, and more particularly to an electronic still camera in which a recording medium for recording still images can be selected.

2. Description of the Related Art Electronic still cameras are known that capture an image of a subject using a solid-state imaging device and record still image signals on a recording medium such as a magnetic disk. For example, a semiconductor TFI device is used as a recording medium for such an electronic still camera.

Semiconductor storage devices can be written to at high speed, so it is possible to record captured images in a short time. Therefore, even when shooting images continuously at high speed, the captured images can be recorded. However, since the storage capacity is not large enough and it is expensive, there is a problem of insufficient capacity when recording a large number of images. Furthermore, since it is affected by static electricity, this may cause recording problems. Furthermore, in the case of an IC memory built into a camera, a backup power source is required to retain recorded contents, so there is a problem that it cannot be stored separately from the camera.

On the other hand, if another recording medium, such as a recording medium that records images by optical recording or magnetic recording, is used, the above-mentioned drawbacks such as insufficient capacity can be overcome. However, since the recording speed on recording media is slower than that of semiconductor storage devices, there has been a problem in that it is not possible to record on these recording media using, for example, a camera that takes snapshots at high speed.

the purpose The present invention overcomes these drawbacks of the prior art.

It is an object of the present invention to provide an electronic still camera that can write at various speeds and can use a recording medium so that the recording capacity can be set to a desired size.

DISCLOSURE OF THE INVENTION According to the present invention, an electronic still camera that images a scene and records the still image on a recording medium includes an imaging means for imaging the scene, and a video signal captured by the imaging means. signal storage means capable of accumulating and reading out at different speeds;
output selection means for outputting the video signal read from the signal storage means to a plurality of recording media having different recording speeds; the output selection means selects at least one of the plurality of recording media to store the signal; The video signal read from the means is output to the selected recording medium.

DESCRIPTION OF EMBODIMENTS Next, embodiments of an electronic still camera according to the present invention will be described in detail with reference to the accompanying drawings.

An example of an electronic still camera according to the present invention is shown in the if diagram.

In the embodiment shown in the figure, an electronic still camera l
An optical recording board 30 that records still images photographed by O on an optical card 36 and a magnetic recording device 50 that records on a magnetic disk 58 are detachably connected to the electronic still camera 10 through a connector 60. It is configured.

In the figure, the elements on the left side from the connector 60 are mounted in a single housing as a digital electronic still camera.

Further, the element portions on the right side from the connector 60 are mounted on a single dipping body as a magnetic recording device 50 and an optical recording device 30, respectively.

The electronic still camera IO has an image sensor 12.

As the image sensor 12, a solid-state imaging device such as COD or MOS is advantageously applied.

The image sensor 12 is connected to a control line 110 from the control circuit 20.
The output 102 of the image sensor 12 is input to the signal processing unit 14, which reads out a video signal to its output 102 in synchronization with a synchronization signal supplied from a synchronization circuit (not shown).

The signal processing unit 14 has a color component signal generation function and a color component signal, which samples and holds a video signal from the filter array of the image sensor 12, which is input as an input 102, and separates the colors into color component signals R, G, and B. It has a matrix function in which R, G, and B are used as a luminance signal Y and color difference signals R-Y and B-Y. The signal processing unit 14 also has a function of performing necessary video signal processing such as white balance adjustment and gradation correction. Output 1 from signal processing section 14
04 is input to the An converter 16.

The An converter 16 is a signal conversion circuit that converts an analog video signal at its input 104 into a digital signal and outputs it to its output 10B. Output 1 from AD converter 16
0B is input to the buffer memory 18.

Buffer memory 18 receives input 10B from An converter 16
It is a backup memory that can temporarily store and read out at a desired speed. The buffer memory 18 reads out the stored video signals according to the respective recording speeds to the semiconductor memory 40, 81, disk 58, and optical card 36, which will be described later.

Output 108 from buffer memory 18 is sent to switch circuit 2
4 to either signal &1140, 150 or 118. The switch circuit 24 switches the output 108 from the buffer memory 18 to the signal line 1 in response to a control signal sent from the control unit 20 through the control line 122.
40, 150, or 118. As a result, the output 108 from the buffer memory 18 is supplied to the memory 40 built into the electronic still camera via the compression unit 42, or the magnetic recording device 50 is connected to the electronic still camera IO via the connector 60. OA converter 52 or optical recording device d30
is supplied to the modulator 32 of.

In order to reduce the amount of image data stored in the memory 40, the compression unit 42 compresses the image data by orthogonal transformation encoding. In other words, the image data is divided into a predetermined number of blocks, subjected to two-dimensional orthogonal transformation, and then normalized. The image data is compressed by converting the data into Huffman code.

The memory 40 is a semiconductor memory such as an IC memory, and is a recording medium for recording photographed still images when writing and recording at high speed such as during high-speed snapshots, or when the number of photographed images is small and the storage capacity is small. used as.

The control unit 20 is a control function unit that controls the operation of the entire apparatus in response to instruction signals sent from the operation display unit 22 through the signal line 128, and the control signal is transmitted through the control line! 10 to the image sensor 12, the control line 112 to the signal processing unit 14, the control line +14 to the AD converter 18, the control line 1111 to the buffer memory 18, and the control line 120 to the image sensor 12. The memory 40 is connected to the switch circuit 24 via the control line 122, and to the operation display unit 2 via the cap 128.
2 are connected to each other. The control unit 20 also monitors the status of each part of the device using these control lines.

The control unit 20 also connects control lines 124 , 128 , 130
and 132 via connectors 60, respectively, to the modulator 32 and the optical recording section 34. of the optical recording device 30. A control signal is output to the modulator 54 and the magnetic recording section 56 of the magnetic recording device 50.

The operation display section 22 has various manual operation buttons such as a shirt release button, exposure settings, and white balance adjustment.
Input the operator's instructions into this camera and connect them to signal line 12B.
In particular, this device has a display function that receives a signal indicating the status of the device from the control portion 20 from the signal line 128 and displays it to the operator. Selected storage means, ie semiconductor memory 40. An instruction from either the optical card 36 or the magnetic disk 58 is input and sent to the control section 20.

An optical recording device 30 for optically recording image signals on an optical card 38 is detachably connected to the electronic still camera IO via a connector θO. The optical recording device 30 has a modulator 32. A still image signal output from the buffer memory 18 of the electronic still camera IO is input to the modulator 32 via the signal line 140 and the connector 80. Modulator 32
is the control line 12 from the control unit 20 of the electronic still camera IO.
4. By the control signal sent through the connector 60,
The input image signal is modulated for optical recording, and output 14
2 is output to the optical recording section 34.

The optical recording section 34 is a recording section for optically recording image data in the optical recording area of the optical card 3B, for example, and is constituted by a solid-state scanner or the like.

The optical card 3B is an image recording medium that has an optical recording area on its surface whose reflectance changes depending on the irradiation of light. The optical card 36 may be, for example, the one described in Japanese Patent Application Laid-Open No. 83-211124, and as shown in FIG. 70 is placed at a position offset from the center of the card. An annular recording area 7 is provided around this rotary bearing part 70.
2 is provided, and a semi-annular recording area 74 is provided on one outer periphery of the annular recording area 72.In the annular recording area 72 and the semi-annular recording area 74, data continues in a spiral shape. This is the recording area, and consists of a recording layer formed of a photosensitive band layer, a light reflection layer, etc., and a transparent protective layer formed on this recording layer. The optical card 3G is further provided with a visually visible recording area 76.

FIG. 3 shows an example of the configuration of the optical recording section 34. The rectangular optical card 36 connects the rotary bearing section 70 to the motor 80.
The rotary bearing part 70 is fixed to the rotating shaft of the motor 80.
For example, in Figures 4 and 5,
As shown in the figure, the card 36 is fixed to a turntable 84 that is fixed to a rotating shaft 82 of a motor 80. A recess 86 having the same shape as the card 36 is provided in the turntable 84 so that the center of gravity of the card 3B attached to the turntable 84 is placed on the rotation axis 82 of the motor 80. If such a turntable 84 is used, the card 36 can be rotated smoothly no matter where the center of rotation is located.

An optical head section 88 arranged at the bottom of the drawing so as to face the annular recording area 72 and the semi-annular recording area 74 of the optical card 3B moves linearly on a ray including the central axis of the optical card 36, and emits light. It goes without saying that the optical head section 88, which continuously writes image information in a spiral manner in synchronization with the rotation of the card 36, can also read data from the optical card 36. By using this, continuous information is written by the rotation of the motor 80 and the linear movement of the optical head, so writing can be performed at relatively high speed.

Still images photographed by an electronic still camera are optically recorded in the optical recording area of the optical card 36 by such an optical recording device 30.

That is, by applying the signal modulated by the modulator 32 to the semiconductor laser 90 of the optical head 88,
Light corresponding to the image signal is generated from the semiconductor laser 80,
This light is deflected and scanned by a deflection means such as a deflection beam splitter 92, and irradiated onto the optical recording area of the optical card 36 to perform optical recording.

The electronic still camera IO further includes a magnetic recording device 50 connected to the connector 6 for magnetically recording image signals on a magnetic disk 58.
It is removably connected via 0. The magnetic recording device 50 has a DA converter 52 and a modulator 54. I)A
The converter 52 receives the still image signal output from the buffer memory 18 of the electronic still camera IO via the signal line 140.
, is input via the connector 60, for magnetic recording,
converted to an analog signal.

The modulator 54 performs FM modulation on the image signal input from the DA converter 52 through the input 152 for magnetic recording.
An output 154 is output to the magnetic recording section 56.

The magnetic recording section 56 records image data on predetermined tracks of the magnetic disk 58.

Explain the operation.

When using the optical card 36 and the magnetic disk 58 together with the memory 40 as a recording medium for recording photographed images, the operator first selects the optical recording device 30 and the magnetic recording device 5.
0 is connected to the electronic still camera 10 through a connector 60.

When you operate the operation display section 22 to perform the shooting operation of the subject,
A video signal is input from the image sensor 12 to the signal processing section 14 . Signal processing such as color separation is performed in the signal processing section 14, and its output 104 is input to the An converter 6. The signal input to the AD converter 16 is converted into a digital signal, and its output 106 is output to the buffer memory 18. The signal sent to the buffer memory 1B is once Mtllked here, and is outputted to the output 108 according to a control signal from the control section 20.

When recording an image by high-speed snapshot, or when the capacity of the memory 40 is sufficient for the image to be photographed and recorded, the operator inputs an instruction to select the memory 40 from the operation display section 22. The control section 20 receives this signal from the operation display section 22 and outputs the control signal to the switch circuit 24 through the control line 122, and the switch circuit 24 is connected to input the output 108 of the buffer memory 1B to the compression section 42. .

The signal stored in the buffer memory 18 is read out by a control signal from the control section 20 and input to the compression section 42 through the switch circuit 24. The image signal input to the compression unit 42 is compressed by orthogonal transform encoding and sent to the memory 40. As a result, the signal of the photographed still image is stored in the memory 40.

On the other hand, in the case of low-speed photography, or when the amount of images to be photographed and recorded is large and the capacity of the memory 40 is insufficient, the operator may receive an instruction to select, for example, an optical card 36 with a large storage capacity as the recording medium. is input from the operation display section 22. The control unit 20 receives this signal from the operation display unit 22 and outputs the control signal to the switch circuit 24 through the control line 122, and the switch circuit 24 connects the output 108 of the buffer memory 18 to the optical recording unit through the connector 60. 30.

The signal stored in the buffer memory 18 is read out by a control signal from the control section 20 and is input to the modulator 32 of the optical recording device 30 through the switch circuit 24 and the connector 60. The signal input to the modulator 32 is modulated for optical recording and output to the optical recording section 34.

In the optical recording section 34, as shown in FIG. 3, optical recording is performed in the optical recording area of the optical card 3B based on the input signal.

Further, when the operator inputs an instruction to select the magnetic disk 58 as a recording medium from the operation display section 22,
The control section 20 receives this signal from the operation display section 22, and outputs a control signal to the switch circuit 24 through the control line 122, and the switch circuit 24 receives the buffer memory! 8 output 108
is connected to be input to the magnetic recording device 50 via the connector 60.

Thereby, the signal stored in the buffer memory 1B is read out by a control signal from the control section 20, and is input to the DA converter 52 through the switch circuit 24 and the connector 60. The signal input to the DA converter 52 is converted into an analog signal, subjected to FM modulation by the modulator 54, and output to the magnetic recording section 56. In the magnetic recording section 56, magnetic recording is performed on a predetermined track of the magnetic disk 58 based on the input signal.

According to this embodiment, the operator can select either the semiconductor memory 40, the optical card 36, or the magnetic disk 58 as the recording medium. Therefore, when a large number of images are to be photographed, by selecting the optical card 3B or the magnetic disk 58, which has a large recording capacity, as the recording medium, a large number of photographed images can be recorded. On the other hand, if there are few images to be photographed, the capacity of the memory 40 is sufficient, so the memory 40 may be selected, or the optical card 3
6 or the magnetic disk 58 may be selected.

When performing quick copying at high speed, by selecting the memory 40, writing can be performed at high speed.

As described above, according to this embodiment, 1, for example, semiconductor memory 4
0 and the optical card 36 can be selected as recording media for photographed images.

Therefore, by selecting the optical card 36 when the capacity of the image to be recorded is large, it is possible to avoid becoming unable to record due to insufficient capacity as in the case of only the semiconductor memory 40, and also to use the optical card 36 as a recording medium. When using,
Since the recording capacity is large, it is possible to record a sufficient number of images even when recording image signals for high-definition television, for example, without the need to compress image data before recording. Further, since the recording device has a simpler configuration than the semiconductor memory 40, it can be advantageously applied to a simple camera.

Furthermore, when recording is performed by optical recording, the recording medium is not limited to the optical card 36, and for example, a roll-shaped film can be used, so that the recording capacity can be further increased.

When an optical recording medium is used, unlike the semiconductor memory 40, failures do not occur due to the influence of static electricity, and a backup power source is not required. Furthermore, since it is inexpensive, the recording medium can be disposable.

On the other hand, when the semiconductor memory 40 is selected, unlike the case where only the optical card 38 is used, recording is not disabled due to insufficient writing speed, so high-speed recording by high-speed snapshot is possible. Furthermore, when the semiconductor memory 40 is used, it can be easily erased, so it can be used repeatedly.

According to this embodiment, since the optical recording device 30 is removably connected to the camera 10, when recording is not performed on the optical card 36 or the magnetic disk 58, that is, the memory 40
When recording only on the camera 10, the optical recording device 30 and the magnetic recording device 50 can be separated from the camera 10.
can be made lighter.

In the above embodiment, the operator inputs an instruction to select a recording medium from the operation display section 22, but it is also possible to control the speed of the signal stored in the buffer memory 18, the amount of data, etc. The recording medium may be selected by the unit 20 detecting the recording medium and outputting a control signal to the switch 24 in response to the detection.

FIG. 6 shows another embodiment of the electronic still camera according to the present invention.

In the camera shown in FIG. 1, the signal processing section 14 provided in the camera of FIG. 1 is omitted, and the output 102 of the image sensor 12 is directly input to the AD converter 16. Therefore, since the signal processing unit 14 is omitted, the output 102 corresponding to the filter array of the image sensor 12, that is, the signal that is not color separated, is
Input to converter 16, buffer memory! 8 to switch 28.

In this device, a filter array data generating section 28 is provided, and generates data indicating the filter array of the image sensor 12. Output 134 from filter array data generator 26 is sent to switch 28 . The switch 28 is switched by a control signal sent from the control section 20 through the control line 13B, and alternately outputs the image data from the buffer memory 18 or the filter array data from the filter array data generating section 26 to the switch 24.

Switch 24 is switched to select the recording medium, similar to the device of FIG.

Further, in this device, a signal processing section 53 is connected to the output 156 of the DA converter 52 of the magnetic recording device 50. The signal processing section 53 includes the filter array data generation section 2B.
A color component signal creation function that samples and holds the image data sent from the DA converter 52 and separates the colors into color component signals R, G, and B using the filter array data sent from the DA converter 52; It has a matrix function in which G and B are used as a luminance signal Y and color difference signals RY and B-Y. The signal processing section 53 also performs necessary video signal processing, such as white balance adjustment and gradation correction, on the signal processing section 53. An output 152 from the signal processing section 53 is input to a modulator 54.

The optical recording device 30 also includes a signal processing section 31 before the modulator 32.
is provided, and similarly to the signal processing section 53, using the filter array data sent from the filter array data generation section 26, the image data sent through the connector 60 is sampled and held, separated into colors, and color component signals R, G are generated. , B, and has a color component signal generation function. The signal processing section 31 also performs necessary video signal processing such as white balance adjustment and gradation correction. The output from the signal processing section 31 is modulated by a modulator 32.

Similarly, the signal processing unit 4 is also connected between the switch 24 and the compression unit 42.
4 is provided.

According to this embodiment, the image data corresponding to the filter arrangement of the image sensor 12 is directly stored in the buffer memory 18.
The data is stored in the memory 40 , the magnetic disk 58 , or the optical card 36 via the switch 24 . On the other hand, since the filter array data generated from the filter array data generating section 2B is similarly sent via the switch 24, the image data is converted into an RGB signal or a luminance signal using the filter array data before being recorded on each recording medium. The signal Y and the color difference signals R-Y, B-Y are converted into RGB signals or Y.

The signals are recorded on each recording medium in the form of RY and BY signals.

FIG. 7 shows still another embodiment of the electronic still camera according to the present invention.

What is shown in this figure is the one in which the signal processing sections 53, 31 and 44 provided in the apparatus of FIG. 6 are omitted. In this device, image data corresponding to the filter arrangement of the image sensor 12 is stored in one memory 40.
In addition to being recorded on the magnetic disk 58 or the optical card 36, the filter array data generated from the filter array data generating section 2B is also recorded on these recording media. Therefore, since the filter array data is recorded on the recording medium together with the image data, when the image recorded on the recording medium is reproduced by the reproducing device, the filter array data is used to reproduce the RGB signal or Y and R-Y, 13- A Y signal can be created.

FIG. 8 shows another embodiment of the electronic still camera according to the present invention.

In what is shown in the figure, the output 10B of the AD converter lθ is connected to the input of a semiconductor memory 40 which is a recording medium. All image signals output from the AD converter 16 are input to the memory 40 and are temporarily stored.

Output 140 from memory 40 is connected via connector 60 to modulator 32 of optical recording device 30 or OA converter 52 of magnetic recording device 'a50, which is connected to electronic still camera 10.

In this embodiment, even when the RJI recording device 50 or the optical recording device 30 is connected to the camera IO, all captured images are input from the A[] converter 16 to the memory 40 and are temporarily stored in the memory 40. be remembered.

Thereafter, the image signal to be recorded on the magnetic disk or optical card 36 is read out from the memory 40 by a control signal sent from the control unit 20 through the control line 120, and sent to the OA converter 52 or modulator 36 via the connector 60. and recorded on the magnetic disk 5 or optical card 36 in the same manner as above.

According to this embodiment, like the embodiment shown in FIG. 1, it is possible to select either the semiconductor memory 40, the magnetic disk, or the optical card 36 to record a still image. Therefore, since it is possible to select a recording medium according to the recording capacity and recording speed, it is possible to record according to the photographing conditions. In addition, the magnetic disk 58 or the optical card 36
When recording is not to be performed, the optical recording device 30 can be removed and the camera lO can be made lighter.

FIG. 9 shows another embodiment of the electronic still camera according to the present invention.

What is shown in the figure is a modulator 32 and an optical recording section 34.
An optical recording device 30 consisting of the following is housed in an electronic still camera IO, and a memory 40 is removably connected to the camera IO via a connector 60. Therefore, the optical card 36 is attached to the optical recording section of the camera IO, and the photographed still image is recorded. In addition, the captured image signal is stored in the memory 40.
When recording on a camera, the memory 40 is connected to the camera lO, and the captured image signal is sent to the memory 4 through the connector 60.
It is input to 0.

In the apparatus of this embodiment, when the memory 40 is used together with the optical card 36 as a recording medium for recording photographed images, the operator connects the memory 40 to the electronic still camera IO through the connector 60.

When the operator operates the operation display unit 22 to perform an operation for photographing a subject, a video signal output from the image sensor 12 is input to the frame memory 18 via the signal processing unit 14 and the AD converter 16. The operator inputs an instruction from the operation display unit 22 as to whether to use the optical card 36 or the memory 40 as a recording medium, and for example, the optical card 36 is selected when shooting a large number of images at low speed. As a result, the control unit 20 connects the switch circuit 2 through the control line 122.
The switch circuit 24 is connected to the opposite position to the state shown in the figure, and the image signal output from the frame memory 18 is connected to the switch circuit 24 and the signal line 140.
is sent to the modulator 32 through. A modulated signal is sent from the modulator 32 to the optical recording section 34 through the signal line 142, and optical recording is performed on the optical card 36 by the laser beam generated from the optical recording section 34.

On the other hand, when high-speed photography or a small number of images are taken, an instruction to select the memory 40 is input from the operation display section 22, and the switch circuit 24 is connected to the illustrated position. As a result, the image signal output from the frame memory 18 is transferred to the switch circuit 24. The signal is input to the memory 40 via the connector 60 and the signal line 118 and stored.

Also in this embodiment, the semiconductor memory 40 and the optical card 3
6 can be selected as a recording medium for photographed images. Therefore, an appropriate recording medium can be selected depending on the shooting speed and the amount of images to be recorded.

Furthermore, when the semiconductor memory 40 is not used, the memory 4
0 can be removed from the camera 10 to make the camera 10 lighter. Although not shown in the apparatus of this embodiment, the magnetic recording device 50 may be connected via the connector 60 as necessary, or the magnetic recording device 50 may be placed inside the camera 10.

FIG. 10 shows another embodiment of the electronic still camera according to the present invention.

In the example shown in the figure, a memory 40, a magnetic recording section, and an optical recording section 30 are all housed in a camera IO. Therefore, it differs from the camera 1O in FIG. 1 in that the magnetic recording device 50 and the optical recording device 30 are connected without using the connector 60. The rest of the configuration is the same as the camera 10 in FIG. 1, so the explanation will be omitted.

Also in the camera IO of this embodiment, the switch circuit 24
By switching, the output from the frame memory 18 can be sent to either the memory 40, the magnetic recording device 50, or the optical recording device i30, so the memory 40, the magnetic recording device 50, or the optical recording device 30 is selected as the recording medium. be able to. Therefore, appropriate recording can be performed depending on conditions such as the shooting speed and the number of shots.

Effects According to the present invention, since one of semiconductor storage means, optical recording means, and magnetic recording means can be selected as a recording medium, appropriate recording can be performed depending on the photographing speed, the amount of images to be photographed, etc. It can be carried out.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an electronic still camera according to the present invention, FIG. 2 is a diagram showing an example of an optical card optically recorded by the device shown in FIG. 1, and FIG. FIG. 4 is a plan view showing the rotating section of the optical recording section of FIG. 3; FIG. 5 is a plan view of the rotating section of the optical recording section of FIG. 3. The side sectional views and FIGS. 6 to 1θ are block diagrams showing other embodiments of the electronic still camera according to the present invention. Explanation of main part symbols 10...Electronic still camera! 2. ．． ．． Image sensor 14, signal processing unit +8°24°30°34°36°40°42°50°56°58°80°, buffer memory, switch, optical recording device, optical recording unit, optical card, memory, Compression unit, magnetic recording device, magnetic recording unit, magnetic disk, connector

Claims (1)

[Claims] 1. An electronic still camera that images a scene and records the still image on a recording medium, the camera comprising: an imaging means for capturing an image of the scene; and an image captured by the imaging means. It has a signal storage means that can temporarily store video signals and read them out at different speeds, and an output selection means that outputs the video signals read from the signal storage means to a plurality of recording media having different recording speeds. An electronic still camera, wherein the output selection means selects at least one of the plurality of recording media and outputs the video signal read from the signal storage means to the selected recording medium. 2. The electronic still camera according to claim 1, further comprising: processing a video signal imaged by the imaging means according to a filter array of the imaging means and recording it on the recording medium. An electronic still camera, further comprising signal processing means for converting the color component signal into a color component signal, and wherein the output selection means outputs the color component signal processed by the signal processing means to the selected recording medium. 3. The electronic still camera according to claim 2, further comprising matrix means for converting the color component signal processed by the signal processing means into a luminance signal and a color difference signal, and the output selection means. The electronic still camera is characterized in that the luminance signal and color difference signal converted by the matrix means are output to the selected recording medium. 4. The electronic still camera according to claim 1, further comprising filter array data output means for outputting data of the filter array of the imaging means, and the output selection means is configured to output filter array data of the image pickup means. An electronic still camera characterized in that data of the filter array outputted from the filter array is outputted to the selected recording medium together with a video signal read out from the signal storage means. 5. The electronic still camera according to claim 1, wherein the plurality of recording media include a first recording medium that records the still image signal using a semiconductor storage means, and a first recording medium that records the still image signal using an optical recording means. An electronic still camera comprising a second recording medium and a third recording medium on which the still image signal is recorded by magnetic recording means. 6. The electronic still camera according to claim 5, wherein the camera includes the first recording medium, and the second recording medium and the third recording medium are detachable. still camera.