JPH11215412A - Video image input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable optimum control for a camera section and a video processing section, even when they are separated and to obtain a video image with good color reproducibility by the use of specific prescribed data in the camera section and the video processing section stored in advance in a host section, so as to control a camera and process a video image. SOLUTION: When a camera section 150 and a video processing section 200 which are separated as a pair are combined, specific focus data, iris data, cam locus, WB data and NTSC/AC are calculated by respective system control sections 106, 250 and written in a file of a host 300 and then stored. At application of power, the host 300 reads file data and gives the data to the video processing section 200 and to the system control sections 106, 250. Optimum control can be made on the camera section 150 and the video processing section 200 by the use of the data so as to control them, even when the optional camera section and video processing section are combined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video input device to which a plurality of camera units can be attached and detached.

[0002]

2. Description of the Related Art FIG. 24 is a block diagram showing a configuration of a conventional video input device.

In FIG. 24, reference numeral 1400 denotes an image input device main body, and 1500 denotes an external device, which is a monitor for displaying an image.

[0004] Reference numeral 1401 denotes a system control unit.
It consists of a one-chip microcomputer having functions of U, ROM, RAM, EEPROM, control port, communication port, etc.
It controls each device of the video input device main body 1400 and performs auto white balance (WB), zoom, AF, AE control, and the like.

A lens unit 1101 includes a zoom ring for manually moving a zoom lens and a focus ring for manually moving a focus lens.

Reference numeral 1102 denotes an iris unit, and a lens unit 1
An iris for adjusting the amount of incident light passing through 101 and an iris ring for manually moving the iris are provided.

Reference numeral 1103 denotes an image sensor, which is a lens unit 11.
An image sensor, such as a CCD, that photoelectrically converts light from a subject that has passed through the iris unit 1101 and the iris unit 1102 into an electric signal.

Reference numeral 1104 denotes an S / H and AGC circuit which performs sampling and holding to reduce noise due to accumulation of electricity in the image sensor 1103 and adjusts the gain of the image signal.
4 is output.

Reference numeral 1105 denotes an accumulation operation of the image sensor 1103;
It is an image sensor driving circuit for controlling a read operation and a reset operation, and is constituted by a TG (timing generator). The image sensor driving circuit 1105 is controlled by the system control unit 1401 to control the image sensor 1103.
Shutter speed can be changed.

Reference numeral 1108 denotes a synchronizing signal generating circuit (SSG) which generates a video synchronizing signal 1112 such as a horizontal synchronizing signal (HD), a vertical synchronizing signal (VD) and a video clock from a clock supplied from the image sensor driving circuit 1105. I do.

Reference numeral 1106 denotes a signal processing circuit which has S / H,
Analog imaging signal 1 output from AGC circuit 1104
114 is converted into a standardized digital video signal. Also, the input analog video signal 1114
, Exposure (brightness) data, white balance data, focus in-focus data, and the like of the subject.

These data are controlled by an interrupt signal generated by the system control unit 1401 for each vertical feedback (V blanking), and the system control unit 1401, which recognizes the interrupt signal, transmits the information as needed. Read and write to RAM area (not shown) of system control unit 1401.

Reference numeral 1204 denotes an encoder circuit for converting a digital video signal output from the signal processing circuit 1106 into a multiplexed composite signal, and outputs the converted composite signal to the video output connector 1210.

Reference numeral 1501 denotes a signal cable for receiving a composite signal output from the video output connector 1210;
This is for transmission to the monitor 1500 which is an external device.

The video input device thus configured has data unique to the input device due to the characteristics of each element and subtle differences in the mounting position of the lens. This data includes
There are the following: WB data for performing automatic white balance control in consideration of variations in an image sensor 1103 such as a CCD and variations in individual substrates. Iris data for absorbing variations due to individual Hall elements in the iris section. Focus data for performing focus control, cam locus data for performing AF control, NT
NT for absorbing individual variations of D / A conversion (not shown) for outputting Y and C signals to SC encoder
There is SC / AD data. Hereinafter, these are collectively called "data". This data is generated by reading out the signal processing data of the signal processing circuit 1106 and calculating by the system control unit 1401.

Using these data as parameters, the system control unit 1401 performs WB, AF, zoom, and AE control. By using such data, it is possible to obtain an output video without variation in each video input device.

The above data, which differs for each video input device, is adjusted at the time of shipment from the factory, the data is determined, and the data is written to an EEPROM (not shown) of the system control unit 1401.

[0018]

In an image input apparatus in which a camera unit and an image processing unit are integrated, data which absorbs individual differences between the camera unit and the image processing unit by adjustment at the time of factory shipment is calculated, and system control is performed. EEPROM of unit 401 (not shown)
Write to. By performing WB, AF, zoom, and AE control using this data, it is possible to perform control in consideration of individual differences, and it is possible to obtain an image with good color reproducibility.

On the other hand, in a video input device in which a camera unit and a video processing unit can be separated, it is necessary to combine an arbitrary camera unit and a video processing unit. The above data is calculated using the data of the video processing circuit,
It will be placed in the video processing unit. However, since an arbitrary camera unit is connected to the video processing unit, valid data cannot be obtained unless the combination with the camera unit calculated by adjustment at the time of shipment from the factory. Therefore, there is a problem that an arbitrary camera unit and a video processing unit cannot be combined.

Accordingly, the present invention has been made in view of the above-described problems, and an object of the present invention is to enable optimal control to be performed even when the camera unit and the video processing unit can be separated, and to achieve color reproduction. It is an object of the present invention to provide a video input device capable of obtaining a good video.

[0021]

Means for Solving the Problems The above-mentioned problems are solved,
In order to achieve the object, an image input device according to the present invention is an image input device in which a camera unit and an image processing unit are configured to be separable, and is connected to the image processing unit. A host unit for controlling the processing unit;
First generating means for generating first data for absorbing the individual difference of the camera unit, which is arranged in the camera unit, and absorbing the individual difference of the camera unit, arranged in the image processing unit; Second data for generating the second data for performing the operation, first output means for outputting the first data from the camera unit to the video processing unit, and transmission from the camera unit. Second output means for outputting the obtained first data and the second data from the video processing unit to the host unit, and arranged in the host unit, wherein the first and second data are output from the video processing unit. A storage unit for storing; a third output unit for outputting data stored in the storage unit of the host unit to the video processing unit when power is turned on; At least one of the data sent by the department And a fourth output unit for outputting to the camera unit, wherein the camera unit executes camera control using data sent from the host unit, and the video processing unit The video processing is executed using the data sent from the PC.

Also, in the video input device according to the present invention, the data stored in the storage means can be rewritten with data obtained by another video input device.

In the video input device according to the present invention, the third output means outputs the stored data when the data stored in the storage means exists, and outputs the stored data. When there is no data, default data is output.

Further, in the video input apparatus according to the present invention, when the default data is output from the third output means, a notification for notifying a user that no data is stored in the storage means. It is characterized by further comprising means.

In the video input device according to the present invention, the video processing unit includes a determination unit that determines a type of a connected camera unit, and the storage unit stores data corresponding to a plurality of types of camera units. Can be stored, and the host unit outputs data corresponding to the type of the connected camera unit.

In the video input device according to the present invention, the camera unit has a unique serial number for each individual, and the storage means can store a plurality of sets of the serial number and data. The host unit outputs data corresponding to the serial number.

An image input device according to the present invention is an image input device in which a camera unit and an image processing unit are configured to be separable, and is arranged in the camera unit to absorb individual differences between the camera units. First generating means for generating first data for generating the first data, and second data for generating second data for absorbing individual differences of the camera unit, the second data being arranged in the image processing unit. Generating means, first output means for outputting the first data from the camera unit to the video processing unit, and first data arranged in the video processing unit and sent from the camera unit; A storage unit for storing the second data; and a second output unit for outputting at least a part of the data stored in the storage unit to the camera unit when power is turned on. The camera unit Run the camera control using the data transmitted from the management unit, in the image processing unit, it is characterized by performing the image processing by using the data stored in the storage means.

Further, in the video input device according to the present invention, the data stored in the storage means can be rewritten with data obtained by another video input device.

Further, in the video input device according to the present invention, a storage means for storing data storage information indicating whether data is stored in the storage means, and a storage means for storing data storage information based on the storage information stored in the storage means. A determination unit for determining whether data is stored in the storage unit when power is turned on.

In the video input device according to the present invention, the second output means outputs the data stored in the storage means to the camera if the data is stored in the storage means as a result of the determination by the determination means. And outputting default data to the camera unit if no data is stored in the storage unit.

Further, the video input device according to the present invention further comprises a notifying means for notifying a user whether or not data is stored in the storage means based on the judgment by the judging means. Features.

Further, in the video input device according to the present invention, the video processing unit includes a determination unit that determines a type of a connected camera unit, and the storage unit stores data corresponding to a plurality of types of camera units. Can be stored, and the video processing unit outputs data corresponding to the type of the connected camera unit to the camera unit.

In the video input device according to the present invention, the camera section has a unique serial number for each object, and the storage means can store a plurality of sets of the serial number and data. The video processing unit outputs data corresponding to the serial number to the camera unit.

[0034]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

(First Embodiment) FIG. 1 is a block diagram showing the configuration of a video input device according to the first embodiment.

In FIG. 1, reference numeral 100 denotes a single focus camera unit, 150 denotes a zoom camera unit different from the camera unit 100, 200 denotes an image processing unit, and 300 denotes a host terminal. Are connected via a signal cable 109.

The video processing unit 200 is a board type built in a computer, is connected to the host terminal 300 by a bus I / F 208, and is controlled by a control signal given from the host terminal 300 through the bus I / F 208. And the camera unit 100 is controlled.

Next, the configuration of the camera section 100 will be described.

Reference numeral 101 denotes a lens unit, which includes an imaging lens, a focus lens, and a focus ring for manually moving the focus lens.

Reference numeral 103 denotes an image pickup device such as a CCD for photoelectrically converting light from a subject incident through the lens unit 101 and the iris unit 102 and converting the light into an electric signal.

Reference numeral 104 denotes an S / H and AGC circuit which performs sampling and holding to reduce noise of accumulated charges in the image sensor 103 and adjusts a gain of an image signal, and outputs an analog image signal 114. The gain of the analog image signal 114 to be output is adjusted under the control of the control signal 111 output from the system control unit 106.

Reference numeral 105 denotes an image sensor driving circuit (TG), which includes a TG (timing generator) for controlling an accumulation operation, a read operation, and a reset operation in accordance with the number of pixels of the image sensor 103. The shutter speed is controlled by a control signal 110 output from the unit 106.

The system control unit 106 includes a CPU, RO
It is composed of a one-chip microcomputer having functions of M, RAM, control port, communication port and the like. The system control unit 106 having such a configuration controls each device of the camera unit 100, performs AE control, and performs AF control and zoom control in a camera unit having a zoom function, and performs bidirectional communication with the video processing unit 200. Do.

Reference numeral 107 denotes a connector for detachably connecting the signal cable 109.

Reference numeral 108 denotes a synchronizing signal generation circuit (SSG) which converts a video synchronizing signal 112 such as a horizontal synchronizing signal (HD), a vertical synchronizing signal (VD) and a video clock from a clock supplied from the image sensor driving circuit 105. Occur.

Reference numeral 113 denotes a camera unit 100 and a video processing unit 2
A data line and a control line for transmitting data and the like for performing bidirectional data communication between the serial communication port and the connector 107 between the serial communication port of the system control unit 106 and the connector 107.

Next, the video processing section 200 will be described.

Reference numeral 250 denotes a system control unit,
U, ROM, RAM, a one-chip microcomputer having functions of a control port, a communication port, etc., control of each device of the video processing unit 200, auto white balance control, communication with the camera unit, 100 and 150, The communication with the host terminal 300 is performed via the bus I / F 208. Also, the host terminal 300 interprets commands and performs various operations requested by the host terminal 300.

An A / D conversion circuit 201 converts an analog image signal 217 transmitted from the camera unit 100 via the signal cable 109 into a digital image signal 218.

Reference numeral 202 denotes a signal processing circuit, which is a digital imaging signal 218 converted by the A / D conversion circuit 201.
Is converted into a standardized digital video signal 219.

The signal processing circuit 202 is an interrupt signal for notifying brightness data of a subject used for exposure control, white balance data for white balance control, and focus focusing data for focus control. Is generated by the system control unit 250 in synchronization with the vertical synchronization signal.

The system control unit 250 that has recognized the interrupt
Reads the information via the serial data line 223 and writes the information in the RAM area of the system control unit 250.

Reference numeral 204 denotes an encoder circuit which converts a standardized digital video signal 225 into a multiplexed composite signal 221 and outputs the converted composite signal 221 to the video output connector 210.

Reference numeral 205 denotes a memory controller circuit which outputs a memory control signal 212 to output the image memory 206
For controlling the reading and writing of the data.

The image memory 206 includes a signal processing circuit 202
And for storing the digital video signal from the scan rate converter circuit 207.

Scan rate converter circuit (SRC)
Reference numeral 207 denotes a digital video signal 213 of the video processing unit 200.
This is for converting and absorbing a difference in aspect ratio between the digital video signal 214 of the host terminal 300 and the digital video signal 214.

Reference numeral 203 denotes a changeover switch, which is used as a digital signal 225 output to the encoder circuit 204.
Digital video signal 2 output from signal processing circuit 202
19, for selecting any one of the digital video signals 216 read from the image memory 206, and performs a selection operation by a control signal sent from the system control unit 250 via the control line 224.

The bus I / F circuit 208 is connected to the host terminal 30
0 for connection to a computer bus. Thereby, the host terminal 300 and the video processing unit 200
Between the digital video signal 214 and the control data 22
6, the memory controller circuit 205 and the scan rate converter circuit 207 can be controlled from the host terminal 300.

Reference numeral 215 denotes a video synchronizing signal,
Corresponding to the video synchronization signal 112 of 00. Video processing unit 20
0 signal processing circuit 202, memory controller circuit 20
5, is supplied to the encoder circuit 204.

Reference numeral 222 denotes a serial data line / control line for performing bidirectional data communication between the camera unit 100 and the video processing unit 200.
Connected to the serial data port.

According to the video input device of the first embodiment configured as described above, the user can replace the camera unit 100 with the zoom camera unit 105 or a camera unit having a different number of pixels. Can be freely selected according to the camera unit.

FIG. 2 is a block diagram showing the configuration of the system control unit 106 for controlling the operation of the camera unit 100.
As described above, the system control unit 106 includes a one-chip microcomputer and software for controlling the one-chip microcomputer.

In FIG. 2, reference numeral 251 denotes an internal bus;
Is a CPU, 253 is a ROM for storing software, 2
54 is an RA used as a work area for software.
M and 255 are rewritable ROMs (EEPROMs).

Reference numeral 256 denotes a timer unit, 257 denotes an I / O control unit for controlling various devices, and 258 denotes a serial communication control unit which controls each device of the camera unit 100 and interacts with the video processing unit 200. It is for performing communication.

FIG. 3 is a block diagram showing the configuration of the system control unit 250 for controlling the operation of the video processing unit 200. As described above, the system control unit 250 includes a one-chip microcomputer and software for controlling the microcomputer.

In FIG. 3, reference numeral 351 denotes an internal bus;
Is a CPU, 353 is a ROM for storing software, 3
54 is an RA used as a work area for software.
M and 355 are rewritable ROMs (EEPROMs).

Reference numeral 356 denotes a timer unit, 357 denotes an I / O control unit for controlling various devices, and 358 denotes a serial communication control unit which controls each device of the video processing unit 200, and controls the camera unit 100 and the host unit. 300 for two-way communication.

FIG. 4 is a diagram for explaining the storage of the control application 310 and the data 320 inside the host unit 300. The host unit stores data together with an application for controlling the video input device. This data is five data of focus data, cam locus, iris data, WB data, and NTSC / AD, which are data specific to the connected video input device. These data are stored in a file separate from the control application and can be rewritten.

Next, a control module and data required for the control module, which are performed by the video processing unit and the camera unit of the first embodiment, will be described with reference to FIG.

Reference numeral 200 denotes an image processing unit, 150 denotes a zoom camera unit, and 100 denotes a single focus camera unit.

The zoom camera unit 150 includes an AF control function 520, a zoom control function 521, A
It has an E control function 522. There are four data required for control: focus data, cam locus data, iris data, and WB data. These data are values peculiar to each camera unit in order to absorb variations in the Hall element in the iris unit and subtle differences in the lens mounting position.

The AF control 520 controls a focus lens (not shown) using the focus data and the cam locus data to realize an AF function.

The zoom control 521 controls a zoom lens (not shown) using the cam locus data to realize a zoom function.

The AE control 522 controls the iris, TG, and AGC by using data such as brightness information output from the signal processing circuit in communication with the video processing unit 500, and realizes the AE function.

The single focus camera unit 100 has an AE control function 523 as a control module. Since the camera unit 100 is a single focus camera, it does not have data necessary for zooming control unlike the zoom camera unit. In the present embodiment, since it is assumed that the single focus camera unit 100 performs focusing manually, it does not have data necessary for AF control.

The AE control function 523 is provided for the video processing unit 500
TG and AGC are controlled using data such as brightness information output from the communication processing circuit by communication with the
Implement the function.

The video processing unit 200 has a WB control function 524
have. The data is WB data and NTSC / AD
have.

The WB control function 524 implements a WB function using the data output from the signal processing circuit and the WB data. The WB data takes into account individual variations of the zoom camera unit and the single focus camera unit.

The NTSC / AD data is data for absorbing variations in D / A conversion for outputting Y and C signals to the NTSC encoder.

Next, FIG. 8 shows an operation procedure for calculating and storing the above data.

Here, a case where the zoom camera unit 150 is used as the camera unit will be described as an example. The internal configuration of the zoom camera section 150 is basically the same as the internal configuration of the single focus camera section 100 except for the configuration for zooming, and the same functional portions are denoted by the same reference numerals.

First, in the first step S601,
Adjust the video processing unit and camera unit. This adjustment is performed using a certain color temperature chart, a color bar, or the like in a system in which the camera unit 150 and the video processing unit 200 are paired. The calculation is performed by the signal processing circuit 202.
, The system control unit 106 of the camera unit and the system control unit 250 of the video processing unit calculate five unique data in consideration of variations.

Next, the process proceeds to step S602, where the camera unit 1
The 50 system control unit 106 includes the data line / control line 11
3 outputs the camera-specific data calculated by the system control unit 106 to the video processing unit 200 via the connector 107. The video processing unit 200 supplies the output data to the system control unit 250 via the connector 211 and the data line / control line 222.

Next, proceeding to step S603, the system control unit 250 of the video processing unit 200
To the host unit via the bus I / F 208
0 and the data calculated by the system control unit 250 of the video processing unit 200 are output.

Next, the process proceeds to step S604, where the host unit 3
00 is the input five data (focus data,
Cam locus, iris data, WB data, NTSC / A
Write D) to a file and save.

The procedure for storing data when the video input device is adjusted has been described above. Apart from the actually adjusted data, default data is incorporated in the video input device control application 310. .

Next, the operation of the video input device of this embodiment when the power is turned on will be described. When the power is turned on, the above-mentioned data unique to the video input device is output from the host unit 300 to the system control unit 250 of the video processing unit 200 and the system control unit 106 of the camera unit 150 according to the processing procedure shown in the flowchart of FIG. Is done.

In the first step S701, the video processing unit
The power of the camera unit is turned on. Next, in step S702, the video input device control application of the host unit is started.

Next, in step S703, the host unit
Determine whether the adjusted data is stored.

If the result of determination in step 703 is that data is stored, the flow advances to step S706 to read the data and notify the video processing unit 200.

On the other hand, if the result of determination in step S 703 is that data has not been stored, the flow advances to step S 704 to read default data incorporated in the control application and notify the video processing unit 200.

Next, proceeding to step S705, the host unit notifies the user that the adjusted data is not stored.

After the processing of step S705 or the processing of step S706 is completed, the process proceeds to step S705.
Proceeding to 707, the system control unit 25 of the video processing unit 200
0 notifies the system control unit 106 of the camera unit 150 of data used in the camera unit.

Next, proceeding to step S708, the video processing unit and the camera unit perform control using the notified data.

According to the above steps, even when an arbitrary camera unit and an image processing unit are combined, the data stored in the host unit is transmitted to the image processing unit and the camera unit, and control using these data is performed. Optimum control can be performed, and an image with good color reproducibility can be obtained.

When the camera unit is exchanged, the data file stored in the host is exchanged.
It is possible to obtain an image with good color reproducibility absorbing the individual differences of the image input device only by exchanging the data file without performing the adjustment again every time the camera unit is exchanged.

Next, a case where the method shown in FIG. 5 is used as a method of storing data in the configuration of FIG. 1 will be described.

The host section 300 stores data files 321 and 322 together with an application 310 for controlling the video input device. The data file contains
A file name that can be recognized for each type of camera or a camera part attribute is indicated in a data file.
Here, single focus camera data 321 and zoom camera data 322 are shown. These data are stored in a file separate from the control application and can be rewritten.

Next, FIG. 10 shows the data calculation and storage operation procedure when the above-described data storage method is employed.

Here, the case where the zoom camera unit 150 is used as the camera unit will be described as an example.

First, in the first step S801,
Adjust the video processing unit and camera unit. This adjustment is performed using a certain color temperature chart, a color bar, or the like in a system in which the camera unit 150 and the video processing unit 200 are paired. The calculation is performed by the signal processing circuit 202.
The system control unit 106 of the camera unit
Then, the system control unit 250 of the video processing unit calculates five unique data in consideration of the variation.

Next, the flow advances to step S802, where the camera unit 1
The 50 system control unit 106 includes the data line / control line 11
3 outputs the unique data calculated by the system control unit 106 to the video processing unit 200 via the connector 107.
The video processing unit 200 transmits the output data to the connector 2
11 and to the system controller 250 via the data line / control line 222.

Next, proceeding to step S803, the system control unit 250 of the video processing unit 200
To the host unit via the bus I / F 208
0, the data calculated by the system control unit 250 of the video processing unit 200, and the type of camera.

Next, the process proceeds to step S804, where the host unit 3
00 is the input five data (focus data,
Cam locus, iris data, WB data, NTSC / A
Write D) to a file and save.

The procedure for storing data when the video input device is adjusted has been described above. Apart from the actually adjusted data, default data is incorporated in the video input device control application 310. .

Next, the operation of the video input device of this embodiment when the power is turned on will be described. When the power is turned on, the above-described data unique to the video input device is output from the host unit 300 to the system control unit 250 of the video processing unit 200 and the system control unit 106 of the camera unit 150 according to the processing procedure shown in the flowchart of FIG. Is done.

In the first step S901, the video processing unit
The power of the camera unit is turned on. Next, in step S902, the video input device control application of the host unit is activated.

Next, in step S903, the video processing unit notifies the host unit of the type of the detected camera unit.

Next, in step S904, the host unit determines whether or not the adjusted data of the camera type notified from the video processing unit is stored.

If the result of determination in step S904 is that data of the type of camera connected is stored, the flow advances to step S907 to read the data and notify the video processing unit 200.

On the other hand, if the result of determination in step S904 is that data of the type of camera connected is not stored, the flow advances to step S905 to read out default data incorporated in the control application.
The video processing unit 200 is notified.

Next, the processing proceeds to step S906, where the host unit notifies the user that the adjusted data of the connected camera type is not stored.

After the processing in step S906 or the processing in step S907 is completed, the process proceeds to step S906.
Proceeding to 908, the system control unit 25 of the video processing unit 200
0 notifies the system control unit 106 of the camera unit 100 of data used by the camera unit.

Next, proceeding to step S909, the video processing unit and the camera unit perform control using the notified data.

According to the above steps, even when an arbitrary camera unit and a video processing unit are combined, data stored in the host unit is transmitted to the video processing unit and the camera unit, and control using these data is performed. Optimum control can be performed, and an image with good color reproducibility can be obtained.

Further, when the camera section is replaced, the data stored in the host is replaced, so that the adjustment is not performed again every time the camera section is replaced. An image with good color reproducibility can be obtained.

When a different type of camera unit is exchanged, data suitable for the camera unit is automatically used by setting the data format so that it can be recognized for each camera type, and the user replaces the data. No need.

Next, a case where the method shown in FIG. 6 is used as a method of storing data in the configuration of FIG. 1 will be described.

The host unit 300 stores the data files 323, 324, and 325 together with the application 310 for controlling the video input device. The data file has a file name that can be recognized for each camera serial number, and the camera serial number is indicated in the data file. Here, the serial # 1 data file 323 and the serial # 2 data file 324
And the serial # 3 data file 325 are shown.
These data files are stored as files separate from the control application and are rewritable.

FIG. 12 shows the data calculation and storage operation procedure when such a data storage method is employed.

Here, the case where the zoom camera unit 150 is used as the camera unit will be described as an example.

First, in the first step S1001, the video processing unit and the camera unit are adjusted. This adjustment is
In a system in which the camera unit 150 and the image processing unit 200 are paired, the processing is performed using a chart of a predetermined color temperature, a color bar, or the like. The calculation is performed by the signal processing circuit 2
02 data and the system control unit 10 of the camera unit.
6, and the system control unit 250 of the video processing unit calculates five unique data in consideration of the variation.

Next, in step S1002, the system control unit 106 of the camera unit 150 sets the data line / control line 1
13 outputs the unique data calculated by the system control unit 106 to the video processing unit 200 via the connector 107. The video processing unit 200 supplies the output data to the system control unit 250 via the connector 211 and the data line / control line 222.

Next, the process proceeds to step S1003, where the camera unit 150 notifies the video processing unit of its own camera serial number.

Next, proceeding to step S1004, the system control unit 250 of the video processing unit 200
6 to the host unit via the bus I / F 208 to the camera unit 1
The data output from the control unit 50, the data calculated by the system control unit 250 of the video processing unit 200, and the camera serial number are output.

Next, the process proceeds to step S1005, where the host unit 300 checks the input five data (focus data, cam locus, iris data, WB data, NTSC data).
/ AD) to a file and save it.

The procedure for storing data when the video input device is adjusted has been described above. Apart from the actually adjusted data, default data is incorporated in the video input device control application 310. .

Next, the operation of the video input device of this embodiment when the power is turned on will be described. When the power is turned on, the above-described data unique to the video input device is output from the host unit 300 to the system control unit 250 of the video processing unit 200 and the system control unit 106 of the camera unit 100 according to the processing procedure shown in the flowchart of FIG. Is done.

In the first step S1101, the power of the video processing section and the camera section is turned on. Next, step S11
At 02, the video input device control application of the host unit is started.

Next, in step S1103, the camera unit notifies the video processing unit of its own camera serial number.

Next, in step S1104, the camera serial number notified from the camera unit by the video processing unit is
Notify the host unit.

Next, in step S1105, the host unit determines whether the adjusted data of the camera serial number notified from the video processing unit is stored.

If the result of determination in step S1105 is that data for the type of camera connected is stored, the flow advances to step S1108 to read the data and notify the video processing unit 200.

On the other hand, as a result of the determination in step S1105,
If the data of the connected camera type is not stored, the process advances to step S1106 to read default data incorporated in the control application and notify the video processing unit 200.

Next, the process proceeds to step S1107, where the host notifies the user that the adjusted data of the connected camera type is not stored.

When the processing of step S1107 or the processing of step S1108 is completed, the process advances to step S1109, where the system control unit 250 of the video processing unit 200 transmits the data used by the camera unit to the camera unit 15.
0 is notified to the system control unit 106.

Next, proceeding to step S1110, the video processing unit and the camera unit perform control using the notified data.

According to the above steps, even when an arbitrary camera unit and an image processing unit are combined, the data stored in the host unit is transmitted to the image processing unit and the camera unit, and control using these data is performed. Optimum control can be performed, and an image with good color reproducibility can be obtained.

When the camera section is replaced, the data stored in the host is exchanged, so that the individual differences of the video input device can be absorbed only by exchanging the data without performing the adjustment every time the camera section is replaced. It is possible to obtain an image with good color reproducibility.

When the camera unit is replaced, data suitable for the camera unit is automatically used by setting the data format so that the camera serial number can be recognized, and there is no need for the user to replace the data. .

Next, a case where the video processing unit stores data unique to the video input device in the configuration of FIG. 1 will be described.

When the video processing section stores data, the data is stored in a rewritable ROM (E) of the system control section 250.
EPROM) 355. Data can be written at the time of adjustment, but can be rewritten later with another data regardless of the adjustment.

Next, FIG. 14 shows a procedure for calculating and storing data when this data storing method is employed.

First, in the first step S1201, the video processing unit and the camera unit are adjusted. This adjustment is
In a system in which the camera unit 150 and the image processing unit 200 are paired, the processing is performed using a chart of a predetermined color temperature, a color bar, or the like. The calculation is performed by the signal processing circuit 2
02 data and the system control unit 10 of the camera unit.
6, and the system control unit 250 of the video processing unit calculates five unique data in consideration of the variation.

Next, in step S1202, the system control unit 106 of the camera unit 150
12 outputs the unique data calculated by the system control unit 106 to the video processing unit 200 via the connector 107. The video processing unit 200 supplies the output data to the system control unit 250 via the connector 211 and the data line / control line 222.

In step S1203, the system control unit 250 of the video processing unit 200 stores the data output from the camera unit 150 and the data calculated by the system control unit 250 of the video processing unit 200 in the EEPROM 355. .

The above is the procedure for storing data when the video input device is adjusted. Apart from the data actually adjusted, default data is stored in the system controller 25.
0 in the ROM 353.

Next, the operation of the video input device of this embodiment when the power is turned on will be described. When the power is turned on, the data unique to the video input device is stored in the system control unit 250 of the video processing unit 200 according to the processing procedure shown in the flowchart of FIG.
Is output to the system control unit 106 of the camera unit 150.

In the first step S1301, the power of the video processing section and the camera section is turned on.

Next, in step S1302, the video processing unit determines whether data is stored in the EEPROM.

As a result of the determination in step S1302, the EEP
If the adjusted data is stored in the ROM, the process advances to step S1305 to read the data stored in the EEPROM and notify the camera unit of data used by the camera unit.

On the other hand, as a result of the determination in step S1302,
If the adjusted data is not stored in the EEPROM, the process proceeds to step S1303, and the system control unit 2
The default data stored in the ROM 353 is read out and notified to the video processing unit 200.

Next, the flow advances to step S1303 to notify the host unit that the adjusted data is not stored, and the host unit notifies the user that adjustment has not been performed.

When the processing in step S1304 or the processing in step S1305 is completed, the process advances to step S1306, where the video processing unit and the camera unit perform control using the notified data.

According to the above steps, even when an arbitrary camera unit and a video processing unit are combined, the data stored in the video processing unit is transmitted to the camera unit, and the control using these data is performed, so that the optimal data can be obtained. Control can be performed, and an image with good color reproducibility can be obtained.

When the camera unit is replaced, the data stored in the video processing unit is rewritten, so that the color reproducibility absorbing the individual differences of the video input device can be adjusted without performing the adjustment every time the camera unit is replaced. It is possible to obtain good images.

In addition, when the video processing section stores data, and in consideration of the type of camera, there is also the following method. FIG.
FIG. 6 shows a procedure for calculating and storing data.

Step S1401 is the same as S1201, and step S1402 is the same as S1202. Next, proceeding to step S1403, the system control unit 250 of the video processing unit 200 outputs the data output from the camera unit 150,
The data calculated by the system control unit of the video processing unit and the camera type are detected, and these are stored in the EEPROM 355.

The above is the procedure for storing data when the video input device is adjusted. Apart from the actually adjusted data, the default data is stored in the system controller 25.
0 in the ROM 353. Further, if the camera types are different, a plurality of data sets can be stored.

Next, the operation of the video input device of this embodiment when the power is turned on will be described. When the power is turned on, the data unique to the video input device is stored in the system control unit 250 of the video processing unit 200 according to the processing procedure shown in the flowchart of FIG.
Is output to the system control unit 106 of the camera unit 150.

Step S1501 is the same as S1301.

Next, in step S1502, the video processing unit determines whether data of the detected camera type is stored in the EEPROM 355.

As a result of the determination in step S1502, the EEP
If the adjusted data is stored in the ROM, the process advances to step S1505 to read the camera type data stored in the EEPROM, and notifies the camera unit of data used by the camera unit.

On the other hand, as a result of the determination in step S1502,
If the adjusted data is not stored in the EEPROM 355, the process advances to step S1503. Step S
1503 is S1303, and step S1504 is S13.
Same as 04.

When the processing in step S1504 or the processing in step S1505 described above is completed, the process advances to step S1506, where the video processing unit and the camera unit perform control using the notified data.

According to the above-described steps, even when an arbitrary camera unit and a video processing unit are combined, the data stored in the video processing unit is transmitted to the camera unit, and the control using these data is performed. Control can be performed, and an image with good color reproducibility can be obtained.

When the camera unit is replaced, the data stored in the video processing unit is rewritten, so that the color reproducibility absorbing the individual differences of the video input device can be adjusted without performing the adjustment every time the camera unit is replaced. It is possible to obtain good images.

When a different type of camera unit is replaced, it is possible to detect a difference in the type of camera without rewriting the data and automatically use the data corresponding to the camera unit.

When the video processing section stores data and a camera serial number is assigned, the following method is also available. FIG. 18 shows a procedure for calculating and storing data.

Step S1601 is the same as S1201. Next, the process proceeds to step S1602, where the camera unit 150
Notifies the video processing unit of the camera serial number together with the calculated data. Next, proceeding to step S1603, the system control unit 250 of the video processing unit 200
50, the data calculated by the system control unit of the video processing unit, and the camera serial number.
The data is stored in the EEPROM 355.

The above is the procedure for storing data when the video input device is adjusted. Apart from the actually adjusted data, the default data is stored in the system controller 25.
0 in the ROM 353. Also, since the data is stored together with the camera serial number, EEPR
It is possible to store a plurality of data sets corresponding to the capacity of OM355.

Next, the operation of the video input device of this embodiment when the power is turned on will be described. When the power is turned on, the data unique to the video input device is stored in the system control unit 250 of the video processing unit 200 according to the processing procedure shown in the flowchart of FIG.
Is output to the system control unit 106 of the camera unit 150.

Step S1701 is the same as S1301.

Next, in step S1702, the camera section notifies its own camera serial number to the video processing section.

In step S1703, the video processing unit determines whether data corresponding to the camera serial number notified from the camera unit is stored in EEPROM 355.

As a result of the determination in step S1703, the EEP
If the adjusted data is stored in the ROM 355, the process advances to step S1706 to read the data of the camera serial number stored in the EEPROM, and notifies the camera unit of data used in the camera unit.

On the other hand, as a result of the determination in step S1703,
If the adjusted data is not stored in the EEPROM 355, the process advances to step S1704. Step S
1704 is S1303, and step S1705 is S13.
Same as 04.

When the processing in step S1705 or the processing in step S1706 is completed, the process advances to step S1707, where the video processing unit and the camera unit perform control using the notified data.

According to the above steps, even when an arbitrary camera unit and a video processing unit are combined, the data stored in the video processing unit is transmitted to the camera unit, and the control using these data is performed, so that the optimum data can be obtained. Control can be performed, and an image with good color reproducibility can be obtained.

When the camera unit is replaced, the data stored in the video processing unit is rewritten, so that the color reproducibility absorbing the individual differences of the video input device can be adjusted without performing the adjustment every time the camera unit is replaced. It is possible to obtain good images.

Since the camera serial number is stored, when the data corresponding to the number is stored in the EEPROM, the data corresponding to the camera unit can be automatically used without rewriting the data. is there.

(Second Embodiment) Next, a second embodiment will be described with reference to the drawings.

FIG. 20 is a block diagram showing the configuration of the video input device according to the second embodiment.

In FIG. 20, reference numeral 600 denotes a video processing unit;
Reference numeral 00 denotes a single focus camera unit as in FIG. 1, and 700 denotes a monitor as an external device.

In the first embodiment, the video processing section is of a board type built in a computer. However, in the second embodiment, the video processing section is of a stand-alone type. Display on the monitor. The host terminal can be connected by a serial cable such as RS232C, but is not essential. Connect only when it is necessary to control from the host terminal.

Image processing section 600 different from the first embodiment
Will be described with reference to FIG.

Reference numeral 636 denotes a power supply unit, and reference numeral 612 denotes a connector for supplying power from an AC adapter or the like. 625 is a connector for controlling the host terminal with RS232C or the like, and 627 is an external host terminal and the system controller 65.
This is a serial line connecting 0.

Reference numeral 650 denotes a system control unit, which includes a CPU,
It is composed of a one-chip microcomputer having functions of a ROM, a RAM, a control port, a communication port, etc., and controls each device of the video processing unit 600, auto white balance control, communication with the camera unit 100, and a serial line 627. Communication with the external host terminal. When controlled by a host terminal (not shown), it performs various requested operations.

An A / D conversion circuit 601 converts an analog image signal 617 transmitted from the camera unit 100 via the signal cable 109 into a digital image signal 618.

Reference numeral 602 denotes a signal processing circuit, which is a digital imaging signal 618 converted by the A / D conversion circuit 601.
Is converted into a standardized digital video signal 619.

The signal processing circuit 602 has an interrupt signal for notifying the brightness data of the subject used for exposure control, the white balance data for white balance control, and the focus / focus data for focus control. Is generated by the system control unit 650 in synchronization with the vertical synchronization signal.

System control unit 650 that has recognized an interrupt
Reads out this information via the serial data line 623 and writes it to the RAM area (not shown) of the system control unit 650.

Reference numeral 604 denotes an encoder circuit which converts the standardized digital video signal 619 into a multiplexed composite signal 621 and outputs the converted composite signal 621 to the video output connector 610.

Reference numeral 615 denotes a video synchronizing signal.
00, the video processing unit 600
Is supplied to the signal processing circuit 602 and the encoder circuit 604.

Reference numeral 622 denotes a serial data line / control line for performing bidirectional data communication between the camera unit 100 and the video processing unit 600.
Connected to the serial data port.

According to the video input device of the present embodiment configured as described above, the user can replace the camera unit 100 with a zoom camera (not shown) or a camera unit having a different number of pixels. The camera unit can be freely selected according to the application.

The control module and the data required by the control module in the video input device of this embodiment are the same as those in FIG. 7 described in the first embodiment.

The control configuration of the video input device of this embodiment is as follows.
Since the control configuration is the same as that of the first embodiment, the procedure of the adjustment operation of the camera unit is similar to that of the first embodiment.
4 and stored in the EEPROM of the video processing unit.

In the video input device of this embodiment, as an operation when the power is turned on, data is notified to the camera unit by a processing procedure as shown in a flowchart of FIG.

FIG. 21 showing the operation at power-on is the same as FIG. 15, except that no notification is given to the user.
If there is a host terminal connected by a serial cable such as RS232C, the video processing unit may notify the host terminal that the camera unit has not been adjusted.

As described above, the data for absorbing the individual difference of the camera unit is stored in the EEPROM of the video processing unit, this data is notified to the camera unit, and the video processing unit performs video signal processing. , Regardless of whether the video processing unit is a board type or a stand-alone type,
It is possible to use a common camera unit. And
According to the steps shown in FIGS. 14 and 21, it is possible to perform optimal control that absorbs individual differences between camera units, and to obtain an image with good color reproducibility.

Further, the difference between the types of cameras and the camera serial numbers described in the first embodiment can also be used.
The operation procedure at the time of turning on the power at this time is shown in FIG. 22 and FIG.

[0203]

As described above, according to the present invention,
An arbitrary camera unit and video processing unit can be combined without using a combination of a camera unit and a video processing unit adjusted at the time of factory shipment.

[0204]

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of a video input device of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a system control unit of the camera unit.

FIG. 3 is a block diagram illustrating a configuration of a system control unit of the video processing unit.

FIG. 4 is a diagram for explaining a video input device control application of a host unit and data storage.

FIG. 5 is a diagram for explaining a video input device control application of the host unit and data storage.

FIG. 6 is a diagram for explaining a video input device control application of the host unit and data storage.

FIG. 7 is a diagram illustrating functions of a camera unit and a video processing unit and types of data necessary for the functions.

FIG. 8 is a flowchart illustrating an operation of calculating and storing data according to the first embodiment.

FIG. 9 is a flowchart illustrating an operation after power-on according to the first embodiment.

FIG. 10 is a flowchart illustrating an operation of calculating and storing data according to a modification of the first embodiment.

FIG. 11 is a flowchart illustrating an operation after power is turned on in a modification of the first embodiment.

FIG. 12 is a flowchart illustrating an operation of calculating and storing data according to a modification of the first embodiment.

FIG. 13 is a flowchart illustrating an operation after power is turned on in a modification of the first embodiment.

FIG. 14 is a flowchart illustrating an operation of calculating and storing data according to a modification of the first embodiment.

FIG. 15 is a flowchart illustrating an operation after power-on according to a modification of the first embodiment.

FIG. 16 is a flowchart illustrating an operation of calculating and storing data according to a modification of the first embodiment.

FIG. 17 is a flowchart illustrating an operation after power is turned on in a modification of the first embodiment.

FIG. 18 is a flowchart illustrating an operation of calculating and storing data according to a modification of the first embodiment.

FIG. 19 is a flowchart illustrating an operation after power is turned on in a modification of the first embodiment.

FIG. 20 is a block diagram illustrating a configuration of a video processing device according to a second embodiment.

FIG. 21 is a flowchart illustrating an operation after power-on according to the second embodiment.

FIG. 22 is a flowchart illustrating an operation after power is turned on in a modification of the second embodiment.

FIG. 23 is a flowchart illustrating an operation after power is turned on in a modification of the second embodiment.

FIG. 24 is a block diagram illustrating a configuration of a conventional video input device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 single focus camera unit 101 lens unit 102 iris unit 103 image sensor 104 S / H, AGC circuit 105 image sensor drive circuit 106 system control unit 107 connector 108 synchronization signal generation circuit 109 signal cable 110 control signal 111 control signal 112 video synchronization signal 113 Data line / control processing 114 Analog imaging signal 150 Zoom camera unit 200 Video processing unit 201 A / D conversion circuit 202 Signal processing circuit 203 Changeover switch 204 Encoder circuit 205 Memory controller circuit 206 Image memory 207 Scan rate converter circuit 208 Bus F 210 Video output connector 211 Connector 212 Memory control signal 213 Digital video signal 214 Digital video signal 215 Video synchronization signal 216 Digital video signal 217 Analog imaging signal 218 Digital imaging signal 219 Digital video signal 221 Composite signal 222 Data line / control line 223 Serial data line 224 Control line 225 Digital video signal 226 Control data 250 System control unit 251 Internal bus 252 CPU 253 ROM 254 RAM 255 EEPROM 256 Timer section 257 I / O control section 258 Serial communication control section 300 Host terminal 310 Video input device control application 320 Data file 321 Single focus camera data file 322 Zoom camera data file 323 Serial # 1 data file 324 Serial # 2 Data file 325 Serial # 3 data file 351 Internal bus 352 CPU 353 ROM 354 RAM 3 5 EEPROM 356 Timer section 357 I / O control section 358 Serial communication control section 500 Image processing section 501 Zoom camera section 502 Single focus camera section 520 AF control module 521 Zoom control module 522 AE control module 523 AE control module 524 WB control module 600 Video processing unit 604 Encoder 610 Video output connector 611 Connector 612 Power supply connector 615 Video synchronization signal 621 Connector 617 Analog imaging signal 618 Digital imaging signal 619 Digital video signal 621 Composite signal 622 Data line / Control line 623 Serial data line 627 Serial data line 636 Power supply section 650 System control section 700 Video output device

Claims (13)

[Claims] 1. A video input device in which a camera unit and a video processing unit are configured to be separable, and a host unit connected to the video processing unit for controlling the camera unit and the video processing unit. A first generation unit that is arranged in the camera unit and generates first data for absorbing the individual difference of the camera unit; and a first generation unit that is arranged in the image processing unit and calculates the individual difference of the camera unit. A second generating unit for generating second data for absorption, a first output unit for outputting the first data from the camera unit to the video processing unit, Second output means for outputting the transmitted first data and the second data from the video processing unit to the host unit; and the first and second data arranged in the host unit. Storage means for storing the A third output unit configured to output data stored in the storage unit of the host unit to the video processing unit; and from the video processing unit, at least a part of data transmitted from the host unit. 4th output to camera
Output means, wherein the camera section executes camera control using data sent from the host section, and the video processing section performs video processing using data sent from the host section. An image input device characterized by executing. 2. The video input device according to claim 1, wherein the data stored in said storage means can be rewritten with data obtained by another video input device. 3. The third output means outputs the stored data when the data stored in the storage means exists, and outputs the default data when the stored data does not exist. The video input device according to claim 1, wherein the video input device outputs 4. A notifying means for notifying a user that no data is stored in said storage means when said default data is output from said third output means. The video input device according to claim 3. 5. The video processing unit includes a determination unit configured to determine a type of a connected camera unit, and the storage unit is capable of storing data corresponding to a plurality of types of camera units. The video input device according to claim 1, wherein the device outputs data corresponding to a type of the connected camera unit. 6. The camera unit has a unique serial number for each individual, the storage unit can store a plurality of sets of the serial number and data, and the host unit corresponds to the serial number. The video input device according to claim 1, wherein the video input device outputs the converted data. 7. An image input device in which a camera unit and an image processing unit are configured to be separable, and are arranged in the camera unit and generate first data for absorbing individual differences of the camera unit. First generating means for generating the first data, and second generating means arranged in the image processing unit for generating second data for absorbing an individual difference of the camera unit. First output means for outputting from the camera unit to the video processing unit, and arranged in the video processing unit and storing the first data and the second data sent from the camera unit And a second output unit for outputting at least a part of the data stored in the storage unit to the camera unit when the power is turned on. Using the data sent from the department An image input device, which performs camera control, and executes image processing using the data stored in the storage means in the image processing unit. 8. The video input device according to claim 7, wherein the data stored in said storage means can be rewritten with data obtained by another video input device. 9. A storage unit for storing data storage information indicating whether data is stored in the storage unit, and based on the storage information stored in the storage unit,
8. The video input device according to claim 7, further comprising: a determination unit configured to determine whether data is stored in the storage unit when power is turned on. 10. The second output means outputs data stored in the storage means to the camera unit as a result of the determination by the determination means, if the data is stored in the storage means.
10. The video input device according to claim 9, wherein if no data is stored in the storage unit, default data is output to the camera unit. 11. The apparatus according to claim 9, further comprising an informing means for informing a user whether or not data is stored in said storage means based on the judgment of said judging means. Video input device. 12. The video processing unit includes a determination unit that determines a type of a connected camera unit, and the storage unit can store data corresponding to a plurality of types of camera units. The video input device according to claim 7, wherein the unit outputs data corresponding to a type of the connected camera unit to the camera unit. 13. The camera unit has a unique serial number for each individual, the storage unit can store a plurality of sets of the serial number and data, and the video processing unit stores the serial number in the serial number. The video input device according to claim 7, wherein corresponding data is output to the camera unit.