JPS62266985A - Picture information processing system - Google Patents

Abstract

PURPOSE:To newly incorporate picture information in an already fetched picture or the like by providing an input and output control circuit for digitizing an analog picture signal, transmitting to a bus and fetching the processed picture signal from the bus. CONSTITUTION:A video signal from a VTR 3 is converted into a digital picture signal through receiving circuits 12-14 an A/D converter 16 and stored in a register 18. This signal is transmitted to the bus 39 in a work station (WS) through a driver receiver 19. The picture signal on the bus 39 processed in the WS is fetched from the friver receiver 19 and stored in a register 18b, thereafter made analogue in a D/A converter 20. A mixer 21 mixes this analog picture signal with a horizontal and vertical synchronizing signal outputted from a control part 15 to form the video signal. A video driver 22 transfers the video signal to the VTR 3 through a change over switch 11b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image information processing system that processes image information sent from a TV camera or a VTR.

[Conventional technology]

In recent years, with the rapid development of image information processing systems centered on electronic computers, it has become possible, for example, to optically read images, process the read images with arithmetic processing devices, and output them from image output devices such as laser beam printers. A device configured as follows has been proposed.

FIG. 5 is a block diagram illustrating an example of a conventional image information processing system, and 31 is a workstation (WS).
and the reader/printer interface 32. Image compression unit (ICU) 33, program memory (PMEM) 34, focus move unit (B
MU) 35.

Image memory (IMEM) 36, video ram (VR)
AM) 37, central processing unit (CPU) 38, bus 39
The ICU 33 compresses and expands data, and in order to increase the encoding rate, it performs two-dimensional compression (high voltage 1
ii) has been adopted. The PMEM34 has an OS program and an application program memory area for controlling the input/output devices provided around the WS31 and each unit in the WS31, and also has a font memory area for converting character codes into image data. have. The BMU 35 performs image editing (image processing) on the CRT display 40, and performs operations such as enlarging, reducing, moving two rotations, or cutting a predetermined image. The IMEM 36 has a storage capacity of, for example, 4 Mbytes, and can store images from the reader 41, images edited by the BMU 35, and the ICU 33.
It is used to store data decompressed by , word processing code data using gee code characters, mixed data, or data obtained by converting a character code into an image.

The VRAM 37 stores image data to be displayed on the CRT display 40 using bitmap memory. A hard disk device 42 stores data processed by the WS 31. 43 is a Flo, P disk device,
Stores data processed by WS31. 44 is an input unit, which includes a board 44a and a pointing device 44;
It consists of b, etc. The keyboard 44a is used to input characters and the like, and a cursor is used to specify a position on the CRT display 40. Pointing device 44
b specifies an arbitrary position on the CRT display 40. 45 is a printer device serving as an image output means, and WS31
Output the edited image.

[Problem that the invention seeks to solve]

However, in order to input a three-dimensional image of a landscape or the like into the above-mentioned image information processing system, it is necessary to take a still photograph or the like, and then input the developed photograph by reading it with an image reading means, for example, the reader 41. However, since the captured image cannot be directly processed, the processing is extremely complicated.

This invention was made to solve the problems described in (g) above, and it is possible to convert a video signal sent from a VTR into a digital signal and input it to a workstation, and also to convert the processed image to a digital signal from a workstation. An object of the present invention is to obtain an image information processing system that can convert the signal into a signal and record it on a VTR.

[Means for Solving the Problem] The image information processing system according to the present invention includes a receiving stage for receiving a video signal transmitted from a recording means for recording the video signal, and a receiving stage for receiving a video signal transmitted from a recording means for recording the video signal. a first conversion means for converting a signal into a digital image signal; a first storage means for temporarily storing the digital image signal converted by the first conversion means;
The second storage means transmits the previously stored digital image signal to the workstation/hess north, and temporarily stores the digital image signal of the bus hill that has been subjected to predetermined processing at the workstation. a data input/output control means for writing; a second conversion means for converting the digital image signal stored in the first stage of the second storage-1 into a video signal; The apparatus is provided with a mixing means for mixing the horizontal synchronizing signal and a vertical synchronizing signal, and a data output means for sending the video signal mixed by the mixing means to the recording means.

[Effect]

In this invention, the receiving means receives the video signal sent from the recording means.The video signal received by the receiving means is converted into a digital image signal by the first converting means and stored in the first storage. The six data input/output control means stored in the first storage means transmits the digital image signals stored in the first storage means onto the bus of the workstation, and transmits the digital image signals processed at the workstation to the second storage means. The digital image signal stored in the second storage means and the horizontal periodic signal and vertical synchronization signal sent from the control means are mixed in a mixing stage and converted into an analog video signal. , the data output means transfers the converted analog video signal to the recording means.

〔Example〕

FIG. 1 is a block diagram illustrating an example of an image information processing system showing an embodiment of the present invention, in which 1 is a bidet constituting input/output control means of the present invention, 4 is a control unit (VCU), It is connected to a reader/printer interface 33 in the WS 31 through a dedicated cable 1a, and has a dedicated power source 2.

The VCUI is connected to the reader/printer interface 32 by a dedicated cable and is driven by a dedicated power supply 2. 3 is a VTR for recording video signals. 4 is a TV camera,
Convert the photographed image to bidet No. 4Ti. VTR3,
TV camera 4 is connected to VCU1. In addition, VC
Ul is leader 41, TV force) 54. WS from VTR3
Input to 31 and WS31, printer 45, VTR3
The output can be cut across. Furthermore, the VCU 1 has a TV camera 4. The analog input (video signal) from the VTR3 is sampled, A/D converted, and the WS31's 7<S19
At the same time, it outputs digital information onto the bus 19, takes in the digital information sent out on the bus 19, performs D/A conversion, and sends analog information to the VTR 3.

FIG. 2 is an external view illustrating the image information processing system according to the present invention, and the same reference numerals as in FIG. 1 are given the same reference numerals.

As can be seen from these figures, the image information read by the reader 41 is sent to the WS 31 via the VCUl and cable ]a, and the image information edited by the WS 31 is sent to the V
It is sent to the printer 45 via CU 1. moreover,
The video signal output from the TV camera 4 is converted into a digital image signal by the VCUl and sent to W via the cable 1a.
At the same time, the digital image signal edited by the WS 31 is sent to the VCU 1 via the cable 1a, and the digital image signal is D/A converted and a video number a is sent to the VTR 3.

FIG. 3 is a block diagram illustrating the configuration of the VCU 1 shown in FIG. terminal 71. T2
The signal is output to the amplifier 12 by switching between the two. The amplifier 12 amplifies the video signal selected by the switch operation of the changeover switch 11a. 13 is a synchronization separation circuit, which separates the video signal amplified by the amplifier 12 into an analog image signal and a synchronization signal. A sample holder 14 samples and holds the analog image signal separated by the synchronization separation circuit 13 for each sampling clock SC sent from the control section 15. An A/D converter 16 converts the analog image signal sampled and held by the sample holder 14 into, for example, an 8-bit digital image signal. 1
7 is a separation circuit which further sends the cyclic signal separated from the synchronous separation circuit 13 to H5YNC and vertical cyclic signal ℃V.
Separate into SYNG. Separated horizontal synchronization signal HSYNf
and the superposition synchronization signal VSYNG are sent to the control section 15. 18a is the first storage means of the present invention, and is a register that stores the latch clock LC sent from the control unit 15.
For example, an 8-bit digital image signal that has been A/D converted by I is stored. Reference numeral 18b denotes a register serving as a storage means of 752 of the present invention, which takes in and stores, for example, an 8-bit digital image signal from the driver receiver 19 in response to the latch clock LC2 sent from the control section 15. A D/A converter 20 converts, for example, an 8-bit digital image signal stored in the register 18b into an analog image signal. 21 is a mixer, and a D/A converter 20
The analog image signal outputted from the controller 15, the horizontal synchronization signal HSYNCI outputted from the control unit 15, and the vertical synchronization signal VS
YNCI is mixed to generate a video signal (NTSC signal). 22 is a video driver which inputs the video signal output from the mixer 21 to a VTR via a changeover switch 11b.
Transfer to 3. 23 is a control signal driver receiver, V
A receive unit that transfers the command signal and status signal sent from TR3 to the control unit 15, and a receive unit that transfers the command signal and status signal sent from TR3 to
It consists of a driver section that transfers data to TR3.

24 is a bus dryer/\, which is a V output sent from the control unit 15.
Transfer the status signal of CU 1 to bus 39.

A path receiver 25 receives command information indicating the status of the host side from the path 39 and transfers it to the control unit 15.

Next, the input/output control operation according to the present invention will be explained with reference to FIGS. 4(a) and 4(b).

FIGS. 4(a) and 4(b) are flowcharts showing an example of the input/output control operation according to the present invention. In addition, (1) to (
30) shows each step.

A case will be described in which a video signal from the TV left camera is transferred to the host side.

First, the WS 31 serving as the host is notified that the VCU 1 is in a ready state (1). This allows the host to
Detects that Ul is ready and sends VC from the host.
Read mode for U1.

Write the TV camera mode command. Next, the host issues a startup command to the VCUl. VCU 1
The VCU waits for a startup command to be sent 2), and when the startup command is sent, the VCU determines whether it has confirmed the ready command set by the host 3)
, if YES, the selector switch 11a shown in FIG. 3 is opened (4). Next, the VCU 1 judges whether it is in the TV camera mode 5), and if YES, connects the switch switch lla to the terminal T1 side 6), and the amplifier 12 shown in Fig. 3 sends out the signal from the TV left camera. The video signal (NTSC signal) is amplified and separated into an analog image signal and a synchronization signal by a synchronization separation circuit 13.
The vertical synchronization signal VSYNC is separated and sent to the control section 15. Next, wait for the vertical synchronization signal VSYNC to become "1" (7), and when the vertical synchronization signal VSYNC rises, wait for the vertical synchronization signal VSYNC to become "0" (8), and then wait for the horizontal synchronization signal qHsyNc to become "0". rJ,
9), horizontal synchronization signal H3YNC
When F rises, the horizontal synchronization signal H3YNC further becomes "0".
10), horizontal synchronization signal H3YNC
falls, the video signal sampling clock S
C is sent from the control unit 15 to the sample holder 14. In response to this, the sample holder 14 holds the input analog image signal according to the ON-OFF state of the sampling clock SC, and converts the sampled and held analog image signal to the A/D converter 16 shown in Figure 33. , for example, into an 8-pin digital image signal, and latches it into a register in the data switch 18 in response to ON-OFF of the latch clock LC sent from the control unit 15. Furthermore, the 8-bit digital image signal latched in the register is controlled by an enable signal BE sent from the control section 15.
, DH by driver receiver 19. Cable 1a
The data is transferred to the reader/printer interface 32, that is, the host side (11), and a strobe signal t(') indicating that the data has been determined is sent from the control unit 15 to the host side via the driver receiver 19.

On the other hand, VCU 1 stays until the water mode synchronization signal H5YNC sent from the TV right camera becomes "1".
Repeat operation 1) 12) Horizontal synchronization signal H5YN
When C becomes "1", the driver receiver 19. Notify the host side via cable 1a (
13). Next, it is determined whether the vertical synchronization signal VSYNC sent from the TV camera 2-4 is f"0" (I4), and if YES, the process returns to step (10) and N
If o, it means that the transfer of one frame of the video signal has been completed, so the control unit 15 sends a message to the driver receiver 1 that the host side has finished transferring the data for one frame (1-5).
Notification is made via the 9° cable 1d (15). Also, reset the startup command sent in the control unit 15.
to In response to this, the VCUI completes the capture of the video signal from the TV right camera and the data transfer to the host side, and notifies the host side that the VCUI is in the ready state.

Next, the operation of transferring the video signal recorded from the VTR 3 to the host side will be explained.

First, the WS 31 serving as the host is notified that the VCUI is in a ready state (1). This allows the host to
1 is in the ready state, and the host sends the VC
Mode for U1.

Write the VTR mode command. Next, the host issues a startup command to the VCUl.

VCU 1 waits for the startup command [2] to be sent.
), when the startup command is sent, the VCU 1 determines whether the ready command set by the host has been confirmed (3), and if YES, opens the selector switch Ila shown in FIG. 3 (4). Next, VClJ 1 determines whether it is in TV camera mode 5) and No.
Therefore, the switching switch 11a should be connected to the terminal T2 side (16), and the control signal driver receiver 23 shown in FIG.
It waits for a ready signal to be sent from the controller 17), and when it is sent, outputs a reproduction command signal to the VTR 3 via the control signal driver receiver 23 shown in FIG.
8). Next, it is detected whether the vertical synchronization signal VSYNC separated from the video signal sent from the VTR 3 is "1"7), and if it is "1", the vertical synchronization signal VSYN is detected.
Wait until C becomes "0" (8). Thereafter, operations similar to those in the TV camera mode are performed.

Next, the recording operation of the digital image signal processed on the host side to the VTR 3 will be explained.

First, the WS 31 serving as the host is notified that the VCUI is in a ready state (1). This allows the host to
1 is in the ready state, and the host sends the VC
Light mode for U 1.

Write the VTR mode command. Next, a startup command is issued to VCU 1 from the host. The VCU 1 waits for the activation command to be sent (2), and when the activation command is sent, the VCU 1 determines whether the REET mode has been set by the host (3). In this case, since the write mode is set, the answer is NO, and the changeover switch 11b is connected, and the changeover switch 11a is connected to the terminal T1 side (19). Then, V
The system waits for a ready signal sent from the TR 3 via the control signal driver receiver 23 (20), and when the ready signal is sent, the VT is sent via the control signal driver receiver 23.
A recording command is output to R3 (21). Then, V.T.
In response to the recording command to R3, the control unit 15 sends a control signal from the VTR 3 to the driver register via the register 23 (waiting for the ready signal to be sent 22), and when the ready signal is sent, the control unit 15 mixes the horizontal synchronizing signal HSYNCI. At the same time, the vertical synchronizing signal VSYNC1 is turned on.
10 F F signal is sent to the mixer 21 (24). Next, a data transfer request command signal is output to the host side (25). It then waits for a digital image signal in response to a data transfer request to be sent onto the bus 39 (28).
, path 39J: , the control unit] 5 outputs enable signals BE and DR to the driver receiver 19, and the digital image signal from the reader/printer interface 32 is routed to the internal path of the VCU 1 (not shown). )
The 8-bit digital image signal is fetched into the register in the data switch 18 by the ON-OFF signal of the latch clock LC2. Further, when the digital image signal is latched in the register, a data reception end command is output to the host side (27). The 8-bit digital image signal launched into the register in the data switch 18 shown in FIG. horizontal synchronization signal H5YNC1, vertical synchronization signal VS
YMCI and the aforementioned unlog image signal are mixed to create a video signal (NTSC signal), which is recorded on the magnetic tape of the VTR 3 via the video driver 22. Next, it is determined whether one line of video signal has been sent out (2 days), and if No, the process returns to step (25) and YES.
If S, it is further determined whether one frame worth of video signal has been sent out (29). No in this judgment.

If YES, return to step (24), and if YES, V
It outputs a termination command to the TR3 via the control driver receiver 23, outputs the termination command to the host side, and resets the startup command set in the control unit 15 (30), and in the same way as above, outputs the termination command to the VTR3. Ends recording operation.

In FIG. 1, if a video printer is connected in place of the VTR 3, a hard copy of the image read by the TV camera 4 or an image after image processing can be printed out. Furthermore, in the A/D converter 16 shown in FIG.
Even if the image is a binary image, if predetermined pseudo-e image processing is performed, a pseudo-et/dark image signal can be sent to the host side.

Furthermore, when converting an analog image signal to a digital image signal, pseudo halftones can be expressed by converting it into binary values using a single or multiple threshold values. Furthermore, it is also possible to convert digital image signals into multivalued signals.

〔Effect of the invention〕

As explained above, the present invention includes a receiving means for receiving a video signal sent from a recording means for recording a video signal, and a conversion method for converting the video signal received by the receiving means into a digital image signal. and the digital image signal converted by this first conversion means =
A first storage means for temporarily storing the digital image signal, and a digital image signal stored in the first storage means is sent onto the path of the workstation, and the digital image signal on the bus is processed in a predetermined manner by the workstation. a data input/output control means for causing the image signal to be written into the second storage means for temporarily storing the image signal; a second conversion means for converting the digital image signal stored in the second storage means into a video signal; A mixing means for mixing a predetermined horizontal synchronizing signal and a vertical synchronizing signal with the video signal converted by the converting means 2, and a data output means for sending the video signal mixed by the mixing means to the recording means are provided. , it becomes possible to input stereoscopic images into the workstation, and image information from the recording means can be incorporated into already captured image and document data, allowing for efficient editing of video information.
It has an extremely excellent output effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating an example of an image information processing system showing an embodiment of the present invention, FIG. 2 is an external view of the image information processing system according to the present invention, and FIG. 3 is a VCU shown in FIG. 1. A block diagram explaining the configuration of FIG. 4(a)
, (b) is a flowchart illustrating an example of the input/output control operation according to the present invention, and FIG. 5 is a block diagram illustrating an example of a conventional image information processing system. In the figure, 1 is VCU, 1a is cable, 2 is power supply, 3 is V
TR24 is a TV camera, lla, 11b is a changeover switch, 12 is a kta width converter, 13 is a synchronization separation circuit, 14 is a sample holder, 15 is a control unit, Colo is an A/D converter, 17
is a separation circuit, 18a. 18b is a register, 19 is a driver receiver, 20 is D
/A converter, 21 is a mixer, 22 is a video driver, 2
3 to the control signal driver register 7, 24 to the pass driver register, 25 to the pass receiver, 31 to the WS, 41 to the reader,
45 is a printer. Gono Pi

Claims (6)

[Claims] (1) In an image information processing system in which a workstation performs necessary processing on an image signal inputted from an image reading means, a receiving means receives a video signal sent from a recording means for recording the video signal, and the receiving means a first converting the received video signal into a digital image signal;
a first storage means for temporarily storing the digital image signal converted by the first conversion means; and a first storage means for temporarily storing the digital image signal converted by the first conversion means; data input/output control means for transmitting the digital image signal onto the bus and writing the digital image signal on the bus, which has undergone predetermined processing at the workstation, into a second storage means for temporarily storing;
a second conversion means for converting the digital image signal stored in the second storage means into a video signal; and a predetermined horizontal synchronization signal and vertical synchronization signal are mixed into the video signal converted by the second conversion means. What is claimed is: 1. An image information processing system comprising: mixing means for mixing video signals; and data output means for sending the video signal mixed by the mixing means to the recording means. (2) The image information processing system according to claim (1), wherein the control means command-controls the recording means. (3) The image information processing system according to claim (1), wherein the control means includes a plurality of central processing means. (4) Image information processing according to claim (1), wherein the first converting means converts the video signal into a binary signal based on a single threshold value and inputs the signal to the workstation. system. (5) The image information processing system according to claim (4), wherein the first converting means converts the video signal into a binary signal based on a plurality of threshold values and outputs the converted signal to the workstation. . (6) The image information processing system according to claim (4), wherein the first converting means converts the video signal into a multi-level signal and inputs the signal to the workstation.