JPH04213280A - Video camera - Google Patents

Abstract

PURPOSE:To allow the setting of the video camera at a desired value by using a freely writable memory card. CONSTITUTION:The desired set value is written on the memory card 20 and the card is mounted into a slit 12. A control section 11 controls the coefft. of a linear matrix 2, the correction value of an image enhancer 3, the characteristics of a gamma correction circuit 5, the convergent value of iris control in a level detecting circuit 8, etc., according to the set value of the card. The video signal from an image pickup section 1 is processed at a desired set value. The operation of the camera as desired is thus possible.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a professional video camera.

0002

[Prior Art] For example, in a professional video camera, in order to achieve optimal image production, setting values (parameters) of the video processing circuit system, including the camera's lens system, are adjusted based on lighting conditions, subject composition, and programming. Depending on the content, etc., or the requests of the cameraman, director, etc.
It is hoped that the system will be able to be modified and operated as needed. In this case, for example, in a studio camera, such operation can be performed while monitoring the video signal output from the camera using a waveform monitor or the like under control from a so-called camera control unit (CCU).

On the other hand, in so-called ENG video cameras, the above-mentioned setting values are set to average values due to demands for mobility and speed. In other words, with ENG video cameras, the cameraman often immediately picks up a nearby camera and heads out to report, and the relationship between the cameraman and the camera is not always 1:1. For this reason, if the camera settings have been changed by a cameraman, there is a risk that when another cameraman uses that camera, problems may occur, such as not being able to obtain the desired image.

[0004] Note that it is often difficult for a cameraman to check the setting values one by one before use when speed is required. Therefore, in such an ENG video camera, the setting values are set to average values. However, even in such a video camera for ENG, for example, there has been a demand for operation with setting values desired by a cameraman or the like.

[0005]

The problem to be solved by the present invention is that in conventional ENG video cameras, for example, problems may occur if the camera operator or the like operates the camera at the desired setting values.

[0006]

[Means for Solving the Problems] The present invention has a slot 12 into which a memory card 20 is inserted.
Setting values (coefficients, correction values, characteristics, iris control) of each part (linear matrix 2, image enhancer 3, γ correction circuit 5, level detection circuit 8) are determined based on the data written in the memory card 20 attached to the memory card 20. This is a video camera in which the convergence value of

[0007]

[Operation] According to this, by inserting a memory card into the slot into which a cameraman or the like has written the desired setting values, the video camera can be brought into the desired setting state with a simple operation.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of a video processing circuit from an imaging section to an encoder of a video camera. In this figure, reference numeral 1 denotes an imaging section using, for example, a charge transfer device (CCD). A video signal from this imaging section 1 is supplied to a linear matrix 2 that controls color reproducibility. Further, a video signal from the imaging section 1 is supplied to an image enhancer 3 that performs contour adjustment and the like. These linear matrices 2
and the signals from the image enhancer 3 are added by an adder 4 and supplied to a γ correction circuit 5. The signal from this γ correction circuit 5 is then taken out to an output video terminal 7 via an encoder 6.

Furthermore, the video signal from the imaging section 1 is supplied to a level detection circuit 8. The signal detected by the level detection circuit 8 is supplied to the iris control circuit 9, and the iris 10 is controlled according to the level of the video signal.

A control section 11 is provided for these circuits. That is, the control signal from the control unit 11 controls the coefficients of the linear matrix 2, the correction value of the image enhancer 3, the characteristics of the γ correction circuit 5, the convergence value of the iris control in the level detection circuit 8, etc. .

Furthermore, in this device, the control section 11 has the following functions:
A slot 12 into which a memory card 20, which will be described later, is inserted is provided. The data written in the memory card 20 inserted into the slot 12 is supplied to the control section 11, and the setting values of each section are determined based on this data.

Therefore, in this device, the memory card 2
0 is written with data of setting values desired by the cameraman. This allows the cameraman to insert his memory card 20 into slot 12 before using this video camera.
By simply attaching the video camera to the camera, the settings of each part can be set to the desired values, and the video camera can be easily operated with the settings desired by the cameraman or the like. In addition, in this device, by setting the average value when the memory card 20 is not inserted into the slot 12, the video camera can be operated without problems even when used by other photographers. I can do it.

[0013] According to the above-mentioned device, by inserting the memory card 20 into the slot 12 into which the cameraman or the like has written the desired setting values, the video camera can be brought into the desired setting state with a simple operation. It is.

[0014] In so-called broadcasting stations, operating standards for video cameras differ from station to station, and different values are determined for the setup level and white clip level, for example. In such cases, for example, outside program production or equipment rental companies have conventionally adjusted video cameras one by one in accordance with the operating standards of the broadcasting station to which they are delivered. Even in such a case, by applying the above-mentioned device, for example, by simply inserting the memory card 20 into the slot 12 into which the data of the operational standards for each station is written, the video that meets the operational standards of the delivered broadcasting station can be created. Camera adjustments can be made.

[0015]

[Effects of the Invention] According to the present invention, by inserting a memory card with desired setting values written into the slot, a cameraman or the like can easily set the video camera to the desired setting state. Ta.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of an example of a video camera.

[Explanation of symbols]

1 Imaging section 2 Linear matrix 3 Image enhancer 4 Adder 5 γ correction circuit 6 Encoder 7 Output video terminal 8 Level detection circuit 9 Iris control circuit 10 Iris 11 Control section 12 slots 20 Memory card

Claims (1)

[Claims] 1. A video camera having a slot into which a memory card is inserted, and set values of each part are determined based on data written in the memory card inserted into the slot.