KR920005041B1 - Double photographing method for a electric camera - Google Patents

Abstract

The frame memory of an electronic camera is divided into two parts and different images are recorded on the divided memory region respectively. The different images are displayed using interlace method to produce the overlapped image. The method comprises the steps: (A) checking the current photography mode; (B) storing image data on field 1 and field 2 of a memory successively at mono photography mode; (C) storing image on a field 1 and returning to stand-by stage at double photography mode; (D) storing next image to be synthesized with the first image on a field 2; and (E) sending 1 frame image data stored on the field 2 to an IC card (26) and returning to the stand-by state.

Description

Double Shot Method of Electronic Camera

1 is a block diagram of a conventional electronic camera.

2 is a block diagram of a conventional electronic camera player.

3 is a block diagram of an electronic camera according to the present invention.

4 is a diagram illustrating an arrangement of field signals of a video signal.

5 is a configuration diagram of the frame memory 25 in FIG.

6 is an exemplary view of a dual shooting screen.

7 is a flow chart according to the present invention.

* Explanation of symbols for main parts of the drawings

20: control unit, 21: imaging device,

23: pre-processing circuit, 24: analog / digital converter,

25: frame memory, 26: IC card,

27: release switch, 28: double shooting selection switch,

29: memory control unit.

The present invention relates to a method of performing dual shooting by dividing a frame memory into two fields in an electronic camera, recording different images, and displaying the images in an interlace method.

In general, the multi-exposure function provided by the high-end models of the film camera was mechanically separated from the film winding lever and the film winding mechanism to give double exposure by exposing the film once again.

FIG. 1 is a block diagram of a conventional camera block. The image of the projectile incident through the lens 1 is photoelectrically converted by the control signal of the controller 8 in the imaging device 2 and output.

After the photoelectric conversion signal from the image pickup device 2 is input to the preprocessing circuit 3, color separation and gamma γ are corrected by the control signal of the controller 8, the white balance is corrected, and the white balance is corrected. The analog / digital converter 4 converts and outputs the data in the digital state.

The output of the analog / digital converter 4 is recorded by the control signal of the memory controller 9. At this time, when the recording of one screen (one frame) is completed in the frame memory 5, it is transmitted to the IC card 6 by the control signal of the memory controller 9 to complete one image recording.

2 is a block diagram of a conventional electronic camera player, which stores data stored in the IC card 10 in the frame memory 11 by a control signal of the memory control unit 14. Data stored in the frame memory 11 is read by a control signal of the memory controller 14 and converted into an analog signal by the digital / analog converter 12.

The analog signal converted by the digital-to-analog converter 12 is encoded by the encoder 13 according to the control signal of the controller 15 and converted into an R, G, B or luminance (Y) / C (color) signal and output. do.

In the conventional electronic camera as shown in FIG. 1, there is a problem in that dual images of one frame cannot be taken.

Accordingly, an object of the present invention is to provide a method of dividing a frame memory into two fields and displaying a different image in an interlaced manner to record a different image.

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

3 is a block diagram of an electronic camera according to an embodiment of the present invention. The controller 20 controls general operations of the electronic camera, a lens 21 that enters an image of a subject, and a subject that enters through the lens 21. An image pickup device 21 for photoelectrically converting and outputting an image by a control signal of the controller 20 and a photoelectrically converted signal of the image pickup device 22 are inputted, and color separation is performed by a control signal of the controller 20. A pre-processing circuit 23 for correcting gamma (γ) and white balance, and an analog / digital converter for converting and outputting the color separation, gamma (γ) correction, and white balance corrected signals of the preprocessing circuit 23 into digital signals. (24), a frame memory (25) for storing the digitally converted signal of the analog-to-digital converter (24) in units of frames, and an IC card for receiving and storing image data of each frame from the frame memory (25). 26 and control of the control unit 20. A memory control unit 29 for controlling the frame memory 25 and the IC card 26 by a call, a release switch 27 for switching to give an exposure of an electronic camera, and a double shot for switching to a double shot selection It consists of a selector switch 28.

4 is a field signal arrangement diagram of a video signal.

FIG. 5 is a configuration diagram of the frame memory 25 of FIG. 3 to record the signals of Field1 and Field2 shown in FIG. 4 to the frame memory of FIG. 5, which is divided into two modes for general shooting and double shooting. When shooting, Field1 and Field2 are recorded continuously. When shooting double-shot, Field2 records the data and records the Field2, and the camera is ready to shoot again. After the exposure is determined, another image is recorded in Field2. Therefore, it is possible to take pictures at different times and in different places, and double shooting is possible as shown in FIG.

7 is a flow chart according to the present invention, in which the first process of checking the current mode after the release switch 27 is pressed and the exposure is determined, and if the dual shooting selection switch 28 is the normal shooting mode in the first process, A second process of continuously recording Fields 1 and 2 of the memory 25; and a second process of recording Feild1 of the frame memory 25 and entering a shooting standby state when the dual shooting selection switch 28 is in the dual shooting mode in the first process. And a fourth process of recording the synthesized screen in Field2 of the frame memory 25 when the release switch 28 is pressed in the shooting standby state of the third process, and the frame memory 25 in the fourth process. After the recording is completed in Field2, the fifth process is performed by transferring image data of one frame to the IC card 26 for recording and entering the next shooting standby state.

According to the above-described configuration, an embodiment of the present invention will be described with reference to FIGS. 3 and 7. First, in step (7a), if the release switch 27 of FIG. Follow the steps.

In step (7b), after determining the state of each of the camera parts in a state suitable for photographing the exposure control, etc., step (7c) is performed. In step (7c), it is checked whether the double shooting selection switch 28 in FIG. 3 is the double shooting mode, and if the dual shooting mode is not the double shooting mode, step (7d) is performed.

In the step (7d), it is checked whether the recording is completed in the field 1 of the frame memory 25 of FIG. 3 and if the writing is completed, the step (7g) is performed. If the writing is not completed, the frame memory 25 in the (7f) step. Record in Field1 of) and go back to the standby mode to record another screen to be synthesized, and then return to the standby mode and perform step (7a) again to capture another screen to be synthesized.

In step (7g), when the release switch 27 of FIG. 3 is pressed again, another screen to be synthesized is recorded in the field 2 of the frame memory 25, and then step (7h) is performed.

In the step (7h), image data of one frame is transferred from the frame memory 25 to the IC card 26, and the process returns to the shooting standby state, and the operation is performed again by performing the step (7a) to continue shooting.

As described above, the frame memory is divided into two fields, each recording a different image, and then displayed on a monitor in an interlaced manner to obtain a dual photographing effect.

Claims (1)

Photoelectric conversion of the control unit 20 for controlling the overall operation of the electronic camera, the lens 21 incident to the subject image, and the subject image incident through the lens 21 by the control signal of the controller 20 A pre-processing circuit 23 for inputting an image pickup device 22 to be output and a photoelectrically converted signal of the image pickup device 21 to correct color separation and gamma correction white balance by a control signal of the control unit 20. ), An analog / digital converter 24 for converting and outputting the color separation, gamma (γ) correction, and white balance corrected signal of the preprocessing circuit 23 into a digital signal, and the digital of the analog / digital converter 24. A frame memory 25 for storing the converted signal in units of frames, an IC card 26 for receiving and storing image data of one frame from the frame memory 25, and a control signal of the controller 20. Control the frame memory 25 and IC card 26 In the dual photographing method of an electronic camera having a memory control unit 26, a release switch 27 for switching the exposure of the electronic camera, and a dual shooting selection switch 28 for switching the dual shooting selection. A first process of inspecting a current photographing mode after the release switch 27 is pressed and the exposure is determined; a first process of inspecting image data when the dual photographing switch 28 is a one-shot mode in the first process; A second process of continuously recording field data of the frame memory 25 in the first process if the dual photographing switch 28 is in the one-shot mode; and the dual photographing selection switch 28 in the first process. Is in the dual shooting mode, the third process of recording the image data in the field of the frame memory 25 and entering the shooting standby state, and the release switch in the shooting standby state of the third process. A fourth process of recording the image data to be synthesized when 28 is pressed in the field 2 of the frame memory 25, and an image for one frame after the recording is completed in the field 2 of the frame memory 25 in the fourth process. And a fifth process of transferring data to the IC card (26) for recording and entering the next shooting standby state.

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