KR200256977Y1 - Multi video vision equipment - Google Patents

Abstract

The present invention relates to a multi video vision apparatus, and after a plurality of video signals inputted from several cameras C1, C2, C3, and C4 are processed by the multi video vision apparatus 10, an RGB display (D) Since the output through a), a high-quality output image can be obtained while its use function is improved, the number of image output means can be greatly reduced, and the space for installing the image output means can be easily secured.

Description

Multi video vision equipment

The present invention relates to a multi-vision video vision apparatus capable of easily editing and outputting a plurality of images input from multiple cameras according to a user's convenience.

As is well known, in order to easily manage and control several zones, conventionally, one CRT display is connected to one camera independently, so that an image input through the camera is output only through the corresponding CRT display. A separate ON / OFF switch is installed in each camera and CRT display connection line to selectively short the video signal from the camera.

Assuming that the conventional multi video vision system is composed of five cameras, five CRT displays, and five ON / OFF switches, and briefly explaining the operation thereof, in the state in which the entire ON / OFF switch is turned off, When the ON / OFF switch is turned ON, the video signal input through the camera 1 is output through the CRT display # 1. When the ON / OFF switch 2 is turned ON, the video signal from the camera No. 2 is displayed in the CRT display 2 If you turn the # 5 ON / OFF switch to ON, the video signal of the # 5 camera is output through the # 5 CRT display.

Therefore, by observing the image output through a plurality of CRT displays installed in one place, it is possible to easily manage and control the various zones in which the camera is installed.

However, the conventional multi video vision system has a structure in which one CRT display is individually connected to each camera, so that sufficient space for installing the CRT display is required, and an expensive CRT display must be provided corresponding to the number of cameras. There was a problem.

In addition, a means for appropriately editing and outputting video signals input through each camera has not been devised, resulting in a problem that its function and ease are greatly reduced.

Moreover, the CRT display used as a conventional image output means has a low resolution, and thus, when the output image is enlarged, a problem of deterioration in image quality is caused.

In order to solve this problem, a vision system using an RGB display having excellent resolution, as shown in FIG. 1, has been proposed.

If the operator does not select any of the cameras (C1, C2), the analog video signal continuously input from the first camera (C1) and the second camera (C2) is a video selector. All of the digital video signals cut off by the VS and output from the central processing unit CPU are converted into analog video signals by the VGA card VC, and then output through the RGB display D.

In this state, when the operator operates the input means I and selects one of the cameras C1 and C2, the central processing unit CPU receives the output signal from the input means I and the video selector VS. Outputs a control signal, and the video selector VS is operated and controlled by a control signal from the CPU, and connects one of the selected cameras C1 and C2 to the video decoder VD. Electrically connected Accordingly, the analog video signal from the selected cameras C1 and C2 passes through the video selector VS and is then converted into a digital video signal by the video decoder VD and input to the VGA card VC. Edits the digital video signal from the CPU and the digital video signal from the video decoder VD in advance, and converts the edited digital video signal into an analog video signal. ), The edited image is output to the outside through the RGB display (D). The digital image signal from the CPU forms the background of the RGB display D, and the digital image signal from the video decoder VD is output through a predetermined RGB display section.

However, in the conventional method using the RGB display D, only one of the video screens inputted through the plurality of cameras C1 and C2 via the video selector VS is used to display the RGB display D. In this way, although the RGB display D having excellent resolution is used as the image output means, the images from multiple cameras cannot be output to the display D at the same time. There are disadvantages.

Accordingly, the present invention has been made to solve the above problems, and the object of the present invention is to provide a multi-video vision apparatus that can easily edit and output a plurality of images input from multiple cameras according to the user's convenience. have.

1 is a block diagram showing a prior art;

2 is a block diagram showing a first embodiment of the present invention;

3 is a block diagram showing a second embodiment of the present invention;

4 is a block diagram showing a third embodiment of the present invention;

5 is a block diagram showing a fourth embodiment of the present invention;

6 is a block diagram showing a fifth embodiment of the present invention.

Description of terms for the main parts of the accompanying drawings-

10; Multi video vision apparatus, BG, BG1, BG2, BG3; Bus Gate,

C1, C2, C3, C4; camera,

CBM1, CBM2, CBM3, CBM4; CRT buffer memory,

CD1, CD2, CD3, CD4; CRT decoder, CDS; CRT display signal,

CE; CRT encoder, CPU; Central Processing Unit,

D, D1, D2; RGB display, EM1, EM2, EM3, EM4; Edit Memory,

I; Input means, RBM, RBM1, RBM2; RGB buffer memory,

RD, RD1, RD2; RGB decoder,

RDM, RDMl, RDM2; RGB display memory,

RDS, RDS1, RDS2; Rgb display signal,

RE, RE1, RE2; RGB encoders, VD1, VD2, VD3, VD4; Video decoder,

VBM1, VBM2, VBM3, VBM4; Video buffer memory.

The present invention for achieving the above object is a plurality of video decoders that are individually connected to one per camera, converting the analog video signal from the camera into a digital video signal; A plurality of video buffer memories which are individually connected one per video decoder and sequentially store digital video signals from the video decoder sequentially; A plurality of edit memories individually connected to each of the video buffer memories, for temporarily storing digital video signals from the video buffer memory corresponding to the output video position and the output video size; A bus gate connected to each of the edit memories, for selecting input digital image signals according to an output form and transferring the digital image signals to an RGB display memory; An RGB display memory connected to the bus gate to temporarily store a digital video signal from the bus gate in accordance with the resolution of the RGB display; An RGB encoder connected to the RGB display memory and converting the digital video signal from the RGB display memory into an analog video signal and outputting the digital video signal to the RGB display; A central processing unit is configured to receive output signals from the input means, and output control signals to edit memories and bus gates separately to control their operation.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 to 6 is a view showing embodiments according to the present invention, the same reference numerals are attached to the same parts as in Fig. 1 showing the prior art, the description thereof will be omitted.

FIG. 2 shows a multi video vision apparatus 10 for arbitrarily editing video signals input from four cameras C1, C2, C3, and C4 so that the edited video signals are output to one RGB display D. FIG. Doing.

Accordingly, the multi video vision apparatus 10 according to the present invention is individually connected to each of the cameras C1, C2, C3, and C4, and digitally outputs analog video signals from the cameras C1, C2, C3, and C4. A plurality of video decoders VD1, VD2, VD3, and VD4 for converting the video signals; A plurality of video buffer memories (VBM1, VBM2) which are individually connected to each of the video decoders VD1, VD2, VD3, and VD4 and sequentially temporarily store digital video signals from the video decoders VD1, VD2, VD3, and VD4. , VBM3, VBM4); One per video buffer memory (VBM1, VBM2, VBM3, VBM4) is connected separately, and temporarily stores digital video signals from the video buffer memory (VBM1, VBM2, VBM3, VBM4) corresponding to the output video position and output video size. A plurality of edit memories EM1, EM2, EM3, EM4; A bus gate (BG) connected to each of the edit memories (EM1, EM2, EM3, EM4), for selecting the input digital image signals according to the output form and transferring them to the RGB display memory (RDM); An RGB display memory (RDM) connected to the bus gate (BG) to temporarily store a digital video signal from the bus gate (BG) in accordance with the resolution of the RGB display (D); An RGB encoder (RE) connected to an RGB display memory (RDM) for converting a digital video signal from the RGB display memory (RDM) into an analog video signal and then outputting the digital video signal to an RGB display (D); Receives an output signal from the input means I, and outputs control signals to the edit memories EM1, EM2, EM3, EM4 and the bus gate BG separately to these (EM1, EM2, EM3, EM4; BG) It has a structure composed of a central processing unit (CPU) for controlling the operation of.

Referring to the operation state of the multi-video vision apparatus 10 according to the present embodiment, first, control from the central processing unit (CPU) in the initial state in which none of the cameras C1, C2, C3, and C4 is selected. The edit memories EM1, EM2, EM3, and EM4 are controlled by the signal, so that all the digital video signals from the video buffer memories VBM1, VBM2, VBM3, and VBM4 are blocked. Therefore, a black screen with no red, green or blue color applied to the RGB display D appears.

In this state, when the operator operates the input means I to select the first camera C1, the central processing unit CPU receives the output signal from the input means I, and accordingly the first edit. Since the operation of the memory EM1 is controlled, the digital video signal from the first video buffer memory VBM1 is stored in the first edit memory EM1, but initially the digital video signal from the first video buffer memory VBM1. The signal is automatically stored in the first edit memory EM1 at a preset output image size and output image position. Thereafter, the digital image signal from the first edit memory EM1 is stored in the RGB display memory RDM through the bus gate BG, which is controlled by the CPU, and through the bus gate BG. The input digital video signal is obtained by collecting digital video signals from all the cameras C1, C2, C3, and C4, and is automatically stored in a size corresponding to the resolution of the RGB display D. Thereafter, the digital video signal from the RGB display D is converted into an analog video signal by the RGB encoder RE and then output through the RGB display D. At this time, the video screen output through the RGB display (D), the video input through the first camera (C1) is output to the initial output image size and the output image position, the remaining portion except for this is red, green, blue This black screen is not applied at all.

In this state, when the operator operates the input means I to change the output image size and the output image position from the first camera C1, the central processing unit CPU inputs the output signal from the input means I. And control the operation of the first edit memory EM1 and the bus gate BG accordingly, so that the size and position of the moving picture screen from the first camera C1 output through the RGB display D are initially set. From the size and position, the operator changes to the desired size and position.

The video signals from the second, third, and fourth cameras C2, C3, and C4 may also be independently output through the RGB display D, like the first camera C1 described above. Of course, all the moving images from these cameras C1, C2, C3, and C4 can be simultaneously output in D).

Meanwhile, when a plurality of moving images input from the cameras C1, C2, C3, and C4 are simultaneously output to the RGB display D to change their size and position, the output moving images overlap each other.

In this case, when the operator first determines the output order by operating the input means I, the central processing unit CPU operates the edit memories EM1, EM2, EM3, and EM4 and the bus gate BG. This control is performed, and first, since moving images are output without being superimposed according to the output order, outward distortion of the image is prevented.

FIG. 3 arbitrarily edits an analog video signal input from four cameras C1, C2, C3, and C4 and an RGB display signal RDS, which is an analog video signal input from a PC, so that the edited video signal is one RGB. The multi video vision device 10 for outputting to the display D is shown.

Accordingly, the bus gate BG is connected to a bus gate BG connected to the edit memories EM1, EM2, EM3, and EM4, and then temporarily stores digital image signals from the RGB decoder RD. RGB buffer memory (RBM) for output to the system; An RGB decoder RD is connected to the RGB buffer memory RBM and converts an RGB display signal RDS, which is an analog video signal input from a PC, into a digital video signal, and outputs it to the RGB buffer memory RBM. It is characterized by.

In the case of this embodiment, the video signal input from the PC forms the background of the RGB display D, and the output of the video signal from the cameras C1, C2, C3, C4 is the same as in the first embodiment. .

The multi video vision apparatus 10 according to the present embodiment may be manufactured as a separate device, and may be manufactured as a card (video card, audio card, or LAN card) and embedded in the PC main body.

FIG. 4 arbitrarily edits an analog video signal input from four cameras C1, C2, C3, and C4 and an RGB display signal RDS, which is an analog video signal input from a PC, so that the edited video signal is one RGB. While showing the output to the display (D), it is shown a multi-video vision device 10 that can output the output image to the CRT display (not shown) for the VTR, or to be recorded on the video tape for the VTR.

According to this, it is connected to the RGB display memory (DM), CRT display memory (CDM) for temporarily storing the digital video signal from the RGB display memory (DM) in accordance with the resolution of the CRT display; A CRT encoder (CE) connected to the CRT display memory (CDM) and converting a digital video signal from the CRT video display memory (CDM) into an analog video signal and outputting the same as a VTR is provided.

5 arbitrarily edits the analog video signals inputted from the four cameras C1, C2, C3, and C4 and the RGB display signals RDS1 and RDS2, which are analog video signals input from the PC, to display various edited video signals. The multi video vision device 10 for splitting and outputting the large RGB displays D1 and D2 is shown.

According to this, the bus gate BG, the RGB display memory RDM, and the RGB encoder RE are each composed of a plurality of BG1, BG2; RDM1, RDM2; RE1, RE2, and the respective bus gates BG1, BG2. ) Are independently connected to the edit memories (EM1, EM2, EM3, EM4), the RGB display memories (RDM1, RDM2) are independently connected to each one of the bus gates (BG1, BG2), and the RGB encoder (RE) Each of the RGB display memories RDM1 and RDM2 is independently connected.

According to the present embodiment, since several RGB displays D1 and D2 are used as one image output means, the output screen can be enlarged, and since the RGB displays D1 and D2 have excellent resolution, output Even if the screen is enlarged, the image quality is not greatly reduced.

On the other hand, the RGB buffer memory (RBM) and the RGB decoder (RD) is also composed of a plurality of (RBM1, RBM2; RD1, RD2), respectively, a pair of RGB buffer memory and RGB decoder (RBM1, RD1; RBM2, RD2) It should be connected to the bus gates BG1 and BG2 independently, and the RGB display signals RDS1 and RDS2 inputted to the respective RGB decoders RD1 and RD2 are divided by the number of RGB displays D1 and D2 before the input. Must be entered.

FIG. 6 arbitrarily edits an analog video signal input from four cameras C1, C2, C3, and C4, and an RGB display signal RDS1 or RDS2, which is an analog video signal input from a PC, to display various edited video signals. A multi video vision device that can be output to a single RGB display (D1, D2) and output the entire image on a single VTR CRT display (not shown), or record it on a video tape for VTR ( 10).

According to this, the bus is separately connected to the RGB display memories RDM1 and RDM2, and selects the digital image signals from the RGB display memories RDM1 and RDM2 according to the output form and transfers them to the CRT display memory CDM. The gate BG3; A CRT display memory (CDM) connected to the bus gate BG3 for temporarily storing a digital video signal from the bus gate BG3 in accordance with the resolution of the CRT display; A CRT encoder (CE) connected to the CRT display memory (CDM) and converting a digital video signal from the CRT video display memory (CDM) into an analog video signal and outputting the same as a VTR is provided.

On the other hand, the input means (I) may be manufactured separately as needed, it is also possible to use a known PC keyboard and / or mouse.

According to the present invention as described above, since a plurality of video signals input from a plurality of cameras are edited by the multi-video vision device, and then output through the RGB display, the use function is improved, The number is greatly reduced, there is an effect that makes it easy to secure space for installing the image output means.

In addition, even if a single output screen is output through a plurality of RGB displays, the image quality is not significantly reduced, and there is an advantage that the RGB display can be used as a general purpose RGB display for PC.

Claims (5)

A plurality of video decoders VD1, VD2, and VD3, which are individually connected to each of the cameras C1, C2, C3, and C4 and convert analog video signals from the cameras C1, C2, C3, and C4 into digital video signals. , VD4) and; A plurality of video buffer memories (VBM1, VBM2) which are individually connected to each of the video decoders VD1, VD2, VD3, and VD4 and sequentially temporarily store digital video signals from the video decoders VD1, VD2, VD3, and VD4. , VBM3, VBM4); One per video buffer memory (VBM1, VBM2, VBM3, VBM4) is connected separately, and temporarily stores digital video signals from the video buffer memory (VBM1, VBM2, VBM3, VBM4) corresponding to the output video position and output video size. A plurality of edit memories EM1, EM2, EM3, EM4; A bus gate (BG) connected to each of the edit memories (EM1, EM2, EM3, EM4), for selecting the input digital image signals according to the output form and transferring them to the RGB display memory (RDM); An RGB display memory (RDM) connected to the bus gate (BG) to temporarily store a digital video signal from the bus gate (BG) in accordance with the resolution of the RGB display (D); An RGB encoder (RE) connected to an RGB display memory (RDM) for converting a digital video signal from the RGB display memory (RDM) into an analog video signal and then outputting the digital video signal to an RGB display (D); Receives an output signal from the input means I, and outputs control signals to the edit memories EM1, EM2, EM3, EM4 and the bus gate BG separately to these (EM1, EM2, EM3, EM4; BG) Multi video vision apparatus, characterized in that consisting of a central processing unit (CPU) for controlling the operation. The display device of claim 1, further comprising: a CRT display memory (CDM) connected to the RGB display memory (DM) to temporarily store digital video signals from the RGB display memory (DM) in accordance with the resolution of the CRT display; A CRT encoder (CE) connected to the CRT display memory (CDM) and converting a digital video signal from the CRT video display memory (CDM) into an analog video signal and outputting the same as a VTR is provided. Device. The bus gate (BG), the RGB display memory (RDM) and the RGB encoder (RE) are each composed of a plurality (BG1, BG2; RDM1, RDM2; RE1, RE2), respectively. (BG1, BG2) are independently connected to the edit memories (EM1, EM2, EM3, EM4), and RGB display memories (RDM1, RDM2) are independently connected, one per bus gate (BG1, BG2), and RGB encoder A multi video vision device, wherein one RE is independently connected to each of the RGB display memories RDM1 and RDM2. The CRT display memory (CDM) according to claim 3, wherein the digital image signals from the RGB display memories (RDM1, RDM2) are individually connected to the RGB display memories (RDM1, RDM2). A bus gate BG3 for transmitting to the bus gate; A CRT display memory (CDM) connected to the bus gate BG3 for temporarily storing a digital video signal from the bus gate BG3 in accordance with the resolution of the CRT display; A CRT encoder (CE) connected to the CRT display memory (CDM) and converting a digital video signal from the CRT video display memory (CDM) into an analog video signal and outputting the same as a VTR is provided. Device. 5. An RGB decoder (RD; RD1, RD2) according to any one of claims 1 to 4, connected to a bus gate (BG; BG1, BG2) connected to the edit memories (EM1, EM2, EM3, EM4). An RGB buffer memory (RBM; RBM1, RBM2) for temporarily storing digital video signals from the < RTI ID = 0.0 > 1) < / RTI > and then outputting them to the bus gates BG (BG1, BG2); Connected to the RGB buffer memory (RBM; RBM1, RBM2), converts the RGB display signal (RDS), which is an analog video signal input from the outside into a digital video signal and outputs it to the RGB buffer memory (RBM; RBM1, RBM2) An RGB video decoder (RD; RD1, RD2) is provided.