JP3268796B2 - TV camera device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television camera device for setting a state by a scene file.

[0002]

2. Description of the Related Art In a conventional television camera, a photographer stores a series of adjustment state data for a shooting environment in a memory as a scene file so that an optimum image output can be obtained according to a plurality of shooting environments assumed in advance. If there is no room to make adjustments before photographing, the scene file is switched and photographing is performed.

That is, conventionally, as shown in FIG.
The mode setting unit 1 selects a scene file, and the CPU 2 having received the scene file selection request reads the scene file data from the memory 3 and outputs the scene file data to the imaging unit 5 by the data output unit 4, whereby the adjustment state of the imaging unit 5 is adjusted. Settings are being made.

[0004]

However, when the scene file is switched, the adjustment state of the image pickup means changes suddenly, so that the image is suddenly switched, giving an unnatural impression.

[0005] It is an object of the present invention to provide a television camera device which eliminates the unnaturalness of sudden switching of images when switching scene files.

[0006]

A television camera apparatus according to the present invention for achieving the above object has a plurality of adjustment sections so that an optimum image output can be obtained according to an object to be photographed and an environment. Imaging means; memory means for a scene file storing state data in which the adjusting unit is in an optimal state for a plurality of imaging environments assumed in advance; mode setting means for selecting the scene file; And a computing means for interpolating in a plurality of stages the intermediate characteristics between the scene file before the switching and the scene file after the switching when switching the scene file by the mode setting means at every time set by the timer means. Which is characterized by having

[0007]

In the television camera device having the above-mentioned structure, when the scene file is switched by the mode setting means, the arithmetic means connected to the timer means calculates the interpolation value from the data before switching to the data after switching at regular time intervals. Then, the imaging means is adjusted by outputting the data to the imaging means via the data output means.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a block diagram showing the principle. The central CPU 11 is connected to a memory 12, a mode setting unit 13, a timer 14, and a data output unit 15, and the data output unit 15 is connected to an imaging unit 16. .

FIG. 2 is a block diagram of a more specific embodiment, wherein a switch 13 'is used for the mode setting means 13 and a D / A converter 15' is used for the data output means 15. Have been. The imaging means 16 is the lens 1
6a, several types of CC filters, filter 16b from which ND filters can be selected, image sensor 16c, image sensor drive circuit 1
6d, a video circuit 16e capable of adjusting gamma, gain, pedestal, etc., and an output interface 17f.
The output of the / A converter 15 'is connected. The memory 12 stores a filter 1 for shooting in an environment assumed in advance.
D / A for setting the 7b and the video circuit 17e to the optimum adjustment state
The data of the converter 15 'is stored as a scene file for each assumed environment.

The switching means 13 'has a function of giving scene file selection information to the CPU 11. When the switching of the scene file is executed by the switching means 13', the CPU 11 uses the timer 14 to perform N interpolations. Is performed, the data of the scene file before the switching is changed into the data of the scene file after the switching in N stages,
Output to the A converter 15 '. For example, if the scene file data before switching is A and the scene file data after switching is B, and the data is interpolated and output every certain reference time t, the timer 14 receives a command from the CPU 11 and outputs the reference time. t is counted, and a signal is given to the CPU 11 every time t.

The CPU 11 receives the signal of the timer 14 and
+ (B−A) / N × k data is calculated and output to the D / A converter 15 ′. Here, k is the number of signals generated by the timer 14, and is a natural number of 1 to N. The D / A converter 15 'converts the data from the CPU 11 into analog data and outputs the analog data.
6e is adjusted. When k = N, the switching is completed. As a result, the scene file is switched while being linearly interpolated in N steps at time t × N.

Here, an example of linear interpolation has been described.
It is also possible to perform non-linear interpolation according to the characteristics of the part controlled by the D / A converter 15 '.

[0013]

As described above, the television camera apparatus according to the present invention is provided with the timer means, and outputs the interpolation data at regular intervals when the scene file is switched, thereby smoothly changing the adjustment state of the camera. So
The problem of the prior art in which an image becomes unnatural due to a sudden change in the adjustment state generated when a scene file is switched is solved.

[Brief description of the drawings]

FIG. 1 is a diagram showing the basic configuration.

FIG. 2 is a more specific configuration diagram of an embodiment.

FIG. 3 is a configuration diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 CPU 12 Memory 13 Mode setting means 14 Timer 15 Data output means 16 Imaging means

Claims (1)

(57) [Claims] 1. An image pickup means having a plurality of adjusting units so as to obtain an optimal image output according to an object to be imaged and an environment, and an optimal state of the adjusting units for a plurality of imaging environments assumed in advance. Memory means for a scene file in which state data is stored, mode setting means for selecting the scene file, timer means operating by switching the scene file, and a scene before switching the scene file by the mode setting means. A television camera device comprising: a computing unit that interpolates intermediate characteristics of a file and a scene file after switching in a plurality of stages for each time set by the timer unit.