JPH08275066A - Panoramic camera - Google Patents

Abstract

PURPOSE: To attain monitoring in details over a wide range of 360 deg. without provision of many number of cameras or a camera having an expensive wide angle lens and to obtain an image with small distortion without using a camera having a special and expensive lens. CONSTITUTION: The camera is made up of a view camera 1 being a case of the camera, a lens 2, a 1-line CCD 4, a motor 3, an angle detector 5, an A/D converter 7, a write control circuit 6, a synchronizing signal generating circuit 11, a read control circuit 9, an image memory 8, a D/A converter 10 and a superimposing circuit 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video camera used for surveillance and special effects, and more particularly to a video panoramic camera capable of surveillance over a wide range of 360 °.

[0002]

2. Description of the Related Art In the field of monitoring (security), software is used for the purpose of protecting information on computers and networks, and the flow of people and goods at important facilities such as nuclear power plants and airports is monitored and controlled. There are physical things to do. The latter is also called PP (physical protection), and many dedicated devices using image technology have been developed. Building / parking lot monitoring systems, financial institutions / large store monitoring systems, power generation facilities / industries. It is used by being incorporated into plant monitoring systems and airport monitoring systems.

Generally, a surveillance camera monitors what happens in a specific range, that is, narrows the angle of view that can be monitored in order to obtain detailed information, what is happening at that place, and what is happening at that place. He is good at monitoring what people are doing. Therefore, when the area to be monitored becomes wide, it is sufficient to use multiple monitoring cameras or a less important monitoring area, that is, an area where rough information such as whether there are people is enough. Have used surveillance cameras with wide-angle lenses.

In addition, the range for monitoring and photographing is not specifically defined as front, rear, left and right, as in a vehicle-mounted surveillance recording system.
Even when there is no place to install a plurality of surveillance cameras, a surveillance camera having a wide-angle lens is used.

However, a surveillance camera having a wide-angle lens cannot capture a wide range. In addition, a lens having a wide angle of view (wide-angle lens) has a problem that it is difficult to design because the end of an image is distorted or colors are separated (chromatic aberration), and thus it is expensive.

Further, as described above, in order to install a large number of surveillance cameras, there is a problem that a mounting space for the number of surveillance cameras is required and a considerable cost is required.

[0007]

As described above, in order to perform detailed surveillance over a wide range of 360 ° using the conventional surveillance cameras, it is necessary to prepare a number of surveillance cameras or a surveillance camera having a wide-angle lens. Need to be used and cost a lot. Further, when the surveillance camera having the wide-angle lens is used, there is a problem (distortion) that distortion or chromatic aberration occurs at an edge of an image.

Therefore, the present invention has been made in view of the above problems.
Uses a camera with a special and expensive lens, which enables detailed 360-degree detailed monitoring without preparing multiple cameras or using an expensive camera with a wide-angle lens. It is an object of the present invention to provide a panoramic camera that can obtain an image with less distortion without doing so.

[0009]

A panoramic camera according to a first aspect of the present invention is provided with a dark box which is a housing of a camera, a lens provided in the dark box, and an image forming surface inside the dark box formed by the lens. The 1-line CCD, the means for rotating the dark box, the means for converting the image data read by the 1-line CCD into a digital signal while the dark box makes one rotation from the reference position angle, and storing the image data. Means for writing the video data converted into the digital signal in the storage means in a predetermined order from a write start address corresponding to the reference position angle of the dark box, and writing corresponding to the reference position angle of the dark box. With the start address as the read start address, in a predetermined order different from the order in which the video data is written,
It is characterized by comprising a unit for reading the video data from the storage unit and a unit for obtaining a video signal based on the read video data.

A panoramic camera according to a second aspect of the present invention is the panoramic camera according to the first aspect, wherein the image data converted into the digital signal is written in the storage means at a desired reference position angle of the dark box. The angles are added, and the video data is read out from the storage means in a predetermined order from the corresponding write start address. The video data is read from the storage means by using the write start address corresponding to the reference position angle of the dark box as the read start address. Perform in a predetermined order different from the order in which the data was written,
The image formed inside the dark box when the dark box is at the reference position angle is displayed at a desired position on the image display device.

According to a third aspect of the present invention, in the panoramic camera according to the first aspect, the writing of the image data converted into the digital signal into the storage means corresponds to a reference position angle of the dark box. The video data is read out from the storage means in a predetermined order, and the video data is read from the storage means by adding a desired angle to the reference position angle of the dark box and using the corresponding write start address as the read start address. The image is formed in a predetermined order different from the order in which the data is written, and the image formed inside the dark box is displayed at a desired position on the image display device when the dark box is at the reference position angle. It is characterized by being done.

A panoramic camera according to a fourth aspect of the present invention is the panoramic camera according to the first, second or third aspect, wherein the one-line CCD has a buffer for the number of pixels of the one-line CCD, The extraction is characterized in that the data of all the pixels is once taken into the buffer and then sequentially taken out from the buffer.

A panoramic camera according to a fifth aspect of the present invention is the panoramic camera according to the first, second or third aspect, wherein the one-line CCD is provided with respect to a rotation axis of the dark box.
It is characterized in that it is provided on the image plane inside the dark box at an angle determined by the rotation speed of the dark box and the reading speed of each pixel of the one-line CCD.

A panoramic camera according to a sixth aspect of the present invention is the panoramic camera according to the first, second or third aspect, wherein a step motor is used as a means for rotating the dark box until the position angle of the dark box changes. The time of
By making it longer than the time required for the 1-line CCD to finish reading all the pixels, the rotation of the dark box is stopped while the pixels on the 1-line CCD are sequentially read. And

A panoramic camera according to a seventh aspect of the present invention is the panoramic camera according to any one of the first to sixth aspects, in which all the image data stored in the storage means when the dark box makes one rotation, Divide and take out one or more, and for one or more of the display means,
The feature is that the display is made by changing the horizontal angle of view.

[0016]

According to the first aspect of the invention, the one-line CCD
After rotating the dark box installed inside, the output of the 1-line CCD is temporarily stored in the image memory for each rotation angle.
Since it was read out according to the video signal, 360 °
It is possible to obtain an image having a field of view of, and an image in which distortion does not occur even when an ordinary lens is used.

According to the second aspect of the invention, the read start address of the video data from the storage means is fixed and the write start address is variable.
According to the above invention, the write start address of the video data from the storage means is fixed and the read start address is variable, so that each desired image can be displayed at the center of the video output means.

According to the invention of claim 4, one line C
Since a CD having a buffer for the number of pixels of the 1-line CCD is used as the CD, according to the invention of claim 5, the 1-line CCD is used as the rotation speed of the dark box and the 1-line. According to the invention of claim 6, the angle is determined by the reading speed of each pixel of the CCD, and the angle is fixed to the image plane inside the dark box.
Since the step motor is used as a means for rotating the dark box, it is possible to prevent the distortion (tilt) of the image captured by the 1-line CCD.

According to the seventh aspect of the invention, since any data of all the video data written in the storage means can be divided and taken out by a desired number, the horizontal 36
An image having a 0 ° omnidirectional field of view can be displayed as one or more images without distortion by dividing the image into a desired angle of view to one or more image output means.

[0020]

EXAMPLES Examples will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a panoramic camera according to the present invention.

As shown in FIG. 1, the panoramic camera includes a dark box 1 which is a housing of the camera, a lens 2 attached to the dark box 1, and an inner surface of the dark box 1 which is parallel to a surface on which the lens is attached. That is, the 1-line CCD 4 provided on the surface where the image is formed by the lens 2, the motor 3 for rotating the dark box 1, the reference position of 0 °, and the dark box 1 at a position rotated from the reference position. To detect
An angle detection device 5 that outputs the detected angle as an angle signal b, an A / D converter 7 that digitally converts the CCD analog output signal a output from the 1-line CCD 4 into a CCD digital output signal d, and the CCD 4 On the other hand, the timing and the address when the CCD analog output signal a read by outputting the CCD data output request signal c are written in the memory are calculated based on the angle signal b output from the angle detection device 5. The write control device 6 that obtains the result and outputs the result as the memory write timing and the address signal e, and the timing and the address when the image data is read from the memory based on the timing signal i from the synchronization signal generation circuit 11 are obtained by calculation. The result is the memory read timing and address. A read control device 9 which outputs as a signal f, the CCD digital output signal d is stored based on the memory write timing and the address signal e, and the image data digital output signal g is stored based on the memory read timing and the address signal f. An image memory 8 for outputting, a D / A converter 10 for converting the image data digital output signal g into an image data analog output signal h, a video synchronization signal j from the synchronization signal generating circuit 11, and the image data analog output signal. The superimposing circuit 12 superimposes h and outputs the video signal k.

The one-line CCD 4 has a number of pixels of VM, and the angle detecting device 5 equally divides 360 ° into HM. Therefore, the angle detection device 5 (360 ÷ H
The angle signal b is output with a resolution of M) degrees.

On the other hand, FIG. 2 is a diagram for explaining the method of taking in image data from the CCD and writing to the memory in this embodiment. As can be seen from FIG. 2B, the image memory 8 has M (V, Reading and writing can be performed at the address represented by the array H). Here, V and H are 0 ≦ V ≦ VM−1 and 0 ≦ H ≦ HM−1. As described above, in the present embodiment, since the start of the subscripts V and H of the array M (V, H) is 0, the maximum values of V and H are values obtained by subtracting 1 from VM and HM, respectively. There is. Further, the number of VMs is equal to the number of horizontal video images of the video signal k finally obtained, that is, the number of scanning lines.

Next, the operation (action) of the panoramic camera having the above configuration will be described. In addition, dark box 1
The description will be made assuming that the rotation direction of is clockwise when viewed from above.

First, the operation of writing the pixel data captured by the 1-line CCD 4 into the image memory 8 will be described.

It is assumed that the dark box 1 is at the reference position, that is, the rotation angle is 0 °, and the image formed by the lens 2 in the dark box 1 is as shown in FIG. At this time, the angle detection device 5 sends an angle signal b to the writing control device 6 to inform that the dark box 1 is at the reference position. The write control device 6 that has received the notification of the angle signal b moves to the
The CCD read signal c is sent to D4, and the 1-line CCD4 receiving this sends Px (0) to Px (VM-1).
The pixel data up to are output to the A / D converter 7 as a CCD image output signal a. The A / D converter 7 converts the input CCD image output signal a into a digital signal, and then outputs it to the image memory 8 based on the memory write timing and the address signal e output from the write control device 6. . That is, at this time, since the rotation angle of the dark box 1 is 0 °, the writing control device 6 fixes the subscript H of the storage address M (V, H) of the image memory 8 to 0, and starts from the pixel Px (0). The pixel data up to Px (n) is controlled so as to be sequentially stored from the address M (0,0) to the address M (n, 0) of the image memory 8. As described above, n is an integer from 0 to VM-1. As described above, 1 of 1 line CCD4
The pixel data for lines is stored (written) in the image memory 8.

On the other hand, since the dark box 1 is rotating, the dark box 1
The image bound inside moves with the rotation of the dark box 1
The image formed in the dark box when is rotated to ((360 ÷ HM) × 1) degrees is the image shown by the solid line formed by the lens 2 when the dark box 1 is at the reference position, It will move to the position of the dotted line in FIG. As described above, the rotation angle of the dark box 1 at this time is ((360 ÷
HM) × 1) degrees, the writing control device 6 that has received the angle signal b sends out the memory writing timing and the address signal e corresponding to this, whereby the storage address M (V, Subscript H of (H) is 1
And the rotation angle of the dark box 1 is ((360 ÷ HM) ×
The pixel data for one line of the one-line CCD 4 at 1) degree, that is, the pixel data from the pixels Px (0) to Px (n) are read by sending a CCD read signal c to the one-line CCD 4, The image memory 8
It is controlled so that the data is sequentially stored from the address M (0,1) to the address M (n, 1).

Similarly, the rotation angle of the dark box 1 is ((360 / ÷
When the write control device 6 receives the angle signal b when the angle is HM) × m) degrees, the write control device 6 sends the corresponding memory write timing and the address signal e, whereby the storage address M (V, H) for the subscript H
Fixed to, the rotation angle of the dark box 1 is ((360 ÷ HM) ×
The pixel data for one line of the one-line CCD 4, that is, the pixel data from the pixels Px (0) to Px (n) at m) degrees are read by sending a CCD read signal c to the one-line CCD 4. The image memory 8
The address M (0, m) to the address M (n, m) are sequentially stored. Note that m is an integer from 0 to HM-1 as described above.

FIG. 3 is a diagram showing a state of being stored in the image memory 8 when the rotation angle of the dark box 1 is changed.

As shown in FIG. 3, the image crossing the one-line CCD 4 while the dark box 1 is rotated 180 ° is as shown in FIG. 3A, and the image crossing the one-line CCD 4 is (( Since pixels are vertically taken in every 360 / HM) × 1) degrees, the storage state (data) in the image memory 8 is as shown in FIG.
An image (data) having a visual field of ° is stored.

Similarly, during one rotation of the dark box 1, one
The image crossing the line CCD 4 is as shown in FIG. 7C, and during this, the image crossing the one line CCD 4 has pixels vertically captured every ((360 ÷ HM) × 1) degrees. Therefore, the storage state (data) in the image memory 8 is as shown in FIG.
The image (data) having the field of view is stored. Since the dark box 1 continues to rotate after that, the storage state (data) in the image memory 8 is updated every time the dark box makes one rotation.

Next, as described above, the image memory 8
The operation of reading the image data written in the image memory 8 from the image memory 8 will be described.

FIG. 4 is a diagram showing a procedure for reading the image data written in the image memory 8 and producing a video signal output.

FIG. 4 is a block diagram conceptually showing the image data reading section 20 in FIG. In the figure, the sync signal generation circuit 11 generates a video sync signal j and outputs it to the superposition circuit 12 and also outputs a timing signal i to the read control device 9. The read control device 9 calculates the timing and address when reading the image data from the memory based on the timing signal i, and outputs the result to the image memory 8 as the memory read timing and the address signal f.

On the other hand, the image memory 8 receiving the memory read timing and the address signal f outputs the image data digital output signal g to the D / A converter 10 based on the signal f. By the way, as shown in FIG. 4, the image data is read from M (0,0) to M (0, m), M
From (1,0) to M (1, m), ..., M (VM-1,
0) to M (VM-1, m) are read in this order. That is, one line is defined as one line in the vertical direction of the video during writing, whereas one line is defined as one line in the horizontal direction of the image during reading. Then, the image data digital output signal g read from the image memory 8 and output to the D / A converter 10 is converted into an image data analog output signal h by the D / A converter 10, and the superposition circuit 12
Is output to

Further, the video synchronizing signal j and the image data analog output signal h output to the superposing circuit 12 are outputted.
Is superposed by the superposing circuit 12 and output as a video signal k.

As described above, by repeating the writing and reading of the image memory 8, the
A video signal having a viewing angle of 60 ° can be obtained.

By the way, in the above-described embodiment, the image displayed by the output image signal k is displayed centering on the image captured by the lens 2 when the rotation angle of the dark box 1 is 180 °. Has become. In order to shift the center of this image, the angle to be shifted may be added to the angle signal b output from the angle detection device 5 (offset value is added) and output. For example, when it is desired to display the image captured by the lens 2 when the rotation angle of the dark box 1 is 0 ° at the center of the displayed image, 180 ° is added to the angle detected by the angle detection device 5. Angle signal b
Should be output as.

Further, when the image data is read from the image memory 8, it is possible to shift the center of the displayed image by shifting the read start position. That is, assuming that the reading start position of the image memory 8 is m, M (0, m), M (0, m + 1), ..., M (0,
VH-1), M (0,0), M (0,1), ..., and M (0, m-1) then M (1, m). . If m = (1 ÷ 2) × VH, the image captured by the lens 2 is displayed at the center of the displayed image when the rotation angle of the dark box 1 is 0 °.

On the other hand, FIG. 5 is a diagram for explaining that the reading pixel position is displaced due to the rotation of the dark box when the image is sequentially read out pixel by pixel using the 1-line CCD 4.

As shown in FIG. 5, in the present invention, a 1-line CCD is used for sequentially reading out an image one pixel at a time. However, since the dark box 1 is rotated while the pixels are being read, the same problem occurs. As shown in FIGS. (A1), (a2), and (a3), the image moves while the video of one line is being read, and when reading pixels 21, 22, and 23, pixels 22 from pixel 21 It can be seen that the pixel 23 reads the left side of the subject more than the pixel 22. Therefore, the read image becomes an image that is obliquely inclined as shown in FIG. In order to prevent this,
As shown in 1), (b2), and (b3), the 1-line CCD 4 may be attached at an angle with respect to the rotation axis. This angle is the rotation speed of the dark box 1 and the 1-line CCD 4
It is determined by the reading speed for each pixel. By attaching the 1-line CCD 4 to the dark box 1 as described above, even if the image moves while the pixels on the 1-line CCD are sequentially read out, the pixel can be read in accordance with the movement of the image. It is possible to obtain an image that does not tilt as shown in FIG.

In addition to the method of attaching the 1-line CCD 4 to the dark box 1 at an angle with respect to the rotation axis,
For example, a method of providing a memory buffer for the number of pixels of the 1-line CCD 4 and reading all the pixels at once, storing them in the memory buffer once, and sequentially reading pixel data from the memory buffer, or rotating the dark box 1 A step motor is used as a motor to make the rotation angle of the dark box 1 change like the second hand of a clock ticking every second, and the time until the rotation angle changes is 1 line. It is conceivable that the rotation of the dark box 1 is stopped while the pixels on the one-line CCD are sequentially read by setting the time longer than the time when the CCD 4 finishes reading all the pixels.

FIG. 6 is a block diagram showing an embodiment in which the angle of view of an image displayed can be changed by reducing the number of image data read from the image memory 8 in the panoramic camera of the present invention.

In FIG. 6, as compared with the panoramic camera having the configuration of FIG. 1, three D / A converters 10a, 10b and 10c are provided and three superimposing circuits 12a, 12b and 12c are provided. In particular, it has a structural feature.

In the present embodiment, the panorama in which the angle of view of the image displayed on one screen can be arbitrarily changed by selectively extracting the image data for one rotation of the dark box 1 written in the image memory 8. The purpose is to provide a camera. Note that the configuration of FIG. 6 shows an example of the case where the video data for one rotation (360 °) of the dark box 1 is equally divided into 120 ° and is divided into three.

In FIG. 6, the synchronizing signal generating circuit 11 is
The video synchronization signal j is generated and output to the superimposing circuits 12a, 12b and 12c, and the timing signal i is output to the read control device 9. The read control device 9 calculates the timing and address when reading the image data from the memory on the basis of the timing signal i, reads the result from the memory, and outputs the result to the image memory 8 as the timing and address signal f.

On the other hand, the image memory 8 which has received the memory read timing and the address signal f receives the signal f from the area A of the image memory 8, that is, M (n,
0) to M (n, (HM ÷ 3) −1) image data digital output signals g1 are output to the D / A converter 10a,
Area B, that is, M (n, (HM ÷ 3)) to M (n,
The image data digital output signals g2 up to ((HM ÷ 3) × 2-1) are output to the D / A converter 10b, and the area C, that is, M (n, ((HM ÷ 3) × 2)) is output. To M
The image data digital output signal g3 up to (n, (HM-1)) is output to the D / A converter 10c. Note that n is an integer that changes from 0 to VM-1.

Then, it is read from the image memory 8 and
The image data digital output signals g1, g2, g output to the D / A converters 10a, 10b, 10c, respectively.
3 are the D / A converters 10a, 10b and 10 respectively.
image data analog output signals h1, h2, h depending on c
3 into the superimposing circuits 12a, 12b, 12
c.

Further, the superimposing circuits 12a, 12b, 12c.
The video synchronization signal j and the image data analog output signals h1, h2, h3 output to the superimposing circuit 12
Are superimposed on each other to obtain video signals k1, k2, k3.
Is output as

FIG. 7 is a diagram showing a state and image data stored in the image memory 8 when the rotation angle of the dark box 1 is changed.

Storage areas A, B and C of the image memory 8, that is, the rotation angle 0 ° shown in FIG. 7 (a1).
Image data having a view angle of 120 ° from FIG. 7 (b1)
Image data having an angle of view of 120 ° to 240 ° shown in FIG. 7, 3 ° of rotation angle shown in FIG.
The video data having an angle of view of 60 ° is output by the superimposing circuits 12a, 12b and 12c, respectively.
It is output as k2 and k3, and is output as shown in FIGS.
2) and (c2) are displayed.

The above is the angle of view 3 when the dark box 1 makes one rotation.
A video signal having 60 ° is equally divided into three, and the angle of view is 1
Although the case of using three video signals having 20 ° has been described, the display angle of view does not have to be uniform, and the display angle may not be divided into three. Further, the image display means may be divided by the number of divided video signals, or one image display means may be changed in time to switch and display the divided image signals by the divided number. Of course, only the video data having the angle and the required angle of view may be displayed.

By the way, in general, when light is obliquely incident on a lens, due to the property that the refractive index is different due to the difference in the wavelength of the light (color difference), chromatic aberration occurs due to spectral separation. This causes a phenomenon in which the position of the image formed by the image moves due to the difference in color of light.

FIG. 8 is a diagram for explaining a phenomenon in which a position of an image to be formed is different due to a chromatic aberration or the like caused by an incident angle and a distortion occurs in the image. The position of the formed image is different in color of light. The phenomenon caused by the movement appears as a pincushion aberration as shown in FIG. 7D or a barrel aberration as shown in FIG. These distortions increase from the center of the image to the edges. Therefore, in order to obtain a high-quality image, an expensive lens that can obtain an image sufficiently satisfactory (small distortion) even at the edge of the image plane is required.

On the other hand, in the present invention, as a method of reading the image plane, a 1-line CCD 4 is arranged in the vertical direction at the center of the image plane 32 as shown in FIG. 8A, and the image plane 32 (dark box 1) rotates. By doing so, the image passing through the 1-line CCD 4 is read.
As shown in (b), the lens 31 that can obtain a sufficient image on the horizontal image plane is not required.

That is, the lens 3 required in the present invention
1 is necessary and sufficient as long as it is a lens (lens) that can obtain a sufficient image only on the image plane in the vertical direction (no distortion occurs) as shown in FIG. 8C.

[0057]

As described above, according to the present invention, the dark box in which the 1-line CCD is installed is rotated, and the output of the 1-line CCD is stored in the image memory for each rotation angle and stored in the image memory. Since the image is read out in accordance with the video signal, a video having a maximum visual field of 360 ° can be obtained without distortion on one screen.

Further, the image having the field of view of 360 ° is divided into several at arbitrary angles, and the image having each field of view can be obtained on a plurality of screens without distortion or one screen. . Furthermore, in the present invention, instead of capturing a wide range of images at one time, the image linked to the CCD in the dark box is moved by rotating the dark box to capture the wide range image linked to the CCD in the dark box. Therefore, it is only necessary to obtain a good image in which distortion is not generated only in the portion where the 1-line CCD, which corresponds to the vertical direction of the screen, is present. Therefore, there is no need to prepare multiple cameras or use expensive fisheye lenses or chromatic aberration correction lenses, etc., and use a normal ordinary lens to obtain sufficient images with a single camera. You can

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a panoramic camera according to the present invention.

FIG. 2 is a diagram for explaining a method of loading image data from a CCD and writing to a memory in this embodiment.

FIG. 3 is a diagram showing a state of being stored in an image memory when the rotation angle of the dark box 1 is changed.

FIG. 4 is a diagram showing a procedure for reading out image data written in an image memory and producing a video signal output.

FIG. 5 is a diagram for explaining that a read pixel position is displaced due to rotation of a dark box when sequentially reading an image pixel by pixel using a 1-line CCD.

FIG. 6 is a block diagram showing an embodiment in which the angle of view of a displayed image can be changed by reducing the number of image data read from the image memory in the panoramic camera of the present invention.

FIG. 7 is a diagram showing a state and image data stored in an image memory when a rotation angle of a dark box is changed.

FIG. 8 is a diagram for explaining a phenomenon in which a position of an image formed differs due to chromatic aberration or the like caused by an incident angle, and the image is distorted.

[Explanation of symbols]

 1 ... Dark box 2 ... Lens 3 ... Motor 4 ... 1 line CCD 5 ... Angle detection device 6 ... Writing control device 7 ... A / D converter 8 ... Image memory 9 ... Read-out control device 10 ... D / A converter 11 ... Synchronous Signal generating circuit 12 ... Superimposing circuit 20 ... Image data reading section a ... CCD analog output signal b ... Angle signal c ... CCD data output request signal d ... CCD digital output signal e ... Memory writing timing and address signal f ... Memory reading timing and Address signal g ... Image data digital output signal h ... Image data analog output signal i ... Timing signal j ... Video synchronization signal k ... Video signal

Claims (7)

[Claims] 1. A dark box which is a housing of a camera, a lens provided in the dark box, and a lens provided on an image forming surface inside the dark box formed by the lens.
A line CCD, a means for rotating the dark box, a means for converting video data read by the 1-line CCD into a digital signal while the dark box makes one rotation from a reference position angle, and a means for storing the video data A means for writing the video data converted into the digital signal in the storage means in a predetermined order from a write start address corresponding to the reference position angle of the dark box, and a write start address corresponding to the reference position angle of the dark box. As a read start address, there are provided means for reading the video data from the storage means in a predetermined order different from the order in which the video data was written, and means for obtaining a video signal based on the read video data. A panoramic camera that is equipped with the features. 2. The video data converted into the digital signal is written in the storage means by adding a desired angle to a reference position angle of the dark box and starting from a corresponding write start address in a predetermined order. The video data is read from the storage means in a predetermined order different from the order in which the video data is written, using a write start address corresponding to a reference position angle of the dark box as a read start address. The panoramic camera according to claim 1, wherein an image formed inside the dark box is displayed at a desired position on the image display device when is at the reference position angle. 3. The video data converted into the digital signal is written in the storage means in a predetermined order from a write start address corresponding to a reference position angle of the dark box, and the video data from the storage means. The reading is different from the order in which the video data is written by adding a desired angle to the reference position angle of the dark box and using the corresponding write start address as the read start address.
The steps are performed in a predetermined order, and an image formed inside the dark box when the dark box is at the reference position angle is displayed at a desired position on the image display device. The panoramic camera according to item 1. 4. The one-line CCD is the one-line CCD.
4. The panorama according to claim 1, wherein the panorama has a buffer for the number of pixels, and the pixel data is taken out from the buffer after the data of all the pixels is once taken into the buffer. camera. 5. The 1-line CCD has a rotation speed of the dark box and a 1-line CCD of 1 with respect to a rotation axis of the dark box.
4. The panoramic camera according to claim 1, wherein the panoramic camera is provided on an image forming plane inside the dark box at an angle determined by a reading speed for each pixel. 6. A step motor is used as a means for rotating the dark box, and the time until the positional angle of the dark box changes is set to be longer than the time required for the 1-line CCD to complete reading of all pixels. The 1 line CC
4. The panoramic camera according to claim 1, wherein rotation of the dark box is stopped while pixels on D are sequentially read. 7. When the dark box makes one revolution, all the image data stored in the storage means are divided and taken out one or more, and one or more display means are changed in the horizontal angle of view. The panoramic camera according to claim 1, wherein the panoramic camera is displayed.