JPH1093852A - Digital still camera having duplex exposure function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital still camera having a duplex exposure function such as a general optical camera which can compose video data that is taken twice into one digital video and which can be made into the video that is doubly exposed. SOLUTION: A video image pickup means 10 converging inputted light and converting it into an electric signal so as to output it, an analog-digital conversion part 20 converting the analog signal inputted from the video image pickup means 10 into the digital signal so as to output it and a video composing means 30 storing the digital signal inputted from the analog/digital conversion part 20 in accordance with the inputted control signal in a field unit and synthesizing the signals in the field unit so as to output it are provided. Furthermore, a control part 40 controlling the video synthesis means 30, a digital/analog conversion part 50 converting the signal inputted form the video composing means 30, a recording device 60 storing the signal inputted from the video synthesis means 30 in accordance with the control signal and a computer interface 70 transmitting the signal inputted from the video composing means 30 to the computer in accordance with the control signal inputted from the control part 40 are contained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a digital still camera having a double exposure function, and more particularly, to a digital still camera having a double exposure function.
The present invention relates to a digital still camera having a double exposure function by synthesizing video data shot several times.

[0002]

2. Description of the Related Art Generally, a digital still camera is a product manufactured based on the concept of a film camera, and does not continuously record and store motion pictures, but records and stores only a specific scene (still picture). When a solid-state imaging device (CCD) receives light, it is converted into a digital signal in a signal converter, and this signal is compressed and stored in a memory. Scenes recorded in memory can be viewed on TVs and computer monitors,
It can be printed using a color printer and can be retouched by computer operation. In addition, if photographic materials are needed suddenly, they can be connected to a computer immediately after taking them and transmitted over a long distance through a telephone line, so there is no time or space restriction.

On the other hand, in a general optical camera using film, an object can be photographed twice on the same film surface using a double exposure function. It is used in fields such as photography.

[0004]

However, the conventional digital still camera does not have the double exposure function of the general optical camera as described above, and thus cannot be used for artistic photography.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to combine video data shot twice into one digital video to form a double-exposed video. An object of the present invention is to provide a digital still camera having a double exposure function like a general optical camera.

It is a further object of the present invention to provide an image input / output device having a double exposure function for synthesizing image data taken twice to form one digital image to create and output a double exposed image. It is in.

[0007]

In order to achieve the above object, a digital still camera having a double exposure function according to the present invention is a video camera which collects input light, converts the light into an electric signal, and outputs the signal. Means, an analog / digital converter for converting an analog signal input from the image pickup means into a digital signal and outputting the digital signal, and converting a digital signal input from the analog / digital converter in a field unit according to an input control signal. Video synthesizing means for storing and synthesizing the stored signal in field units, outputting a control signal including a signal for controlling the video synthesizing means, and converting a digital signal input from the video synthesizing means into an analog signal A digital / analog conversion unit that converts the signal into a signal and outputs the signal, input from the video synthesizing unit according to a control signal input from the control unit Recording apparatus for storing items, comprising a computer interface that allows transmission of signals input from the image synthesis unit to the computer in response to a control signal input from the control unit.

Further, the video input / output device having a double exposure function according to the present invention is a video imaging means for condensing input light, converting the light into an electric signal, and outputting the signal, and an image input from the video imaging means. First converting means for converting an analog signal into a digital signal and outputting the digital signal, storing the digital signal input from the first converting means in field units in accordance with an input control signal, and storing the stored signal in field units Means for outputting various control signals including a signal for controlling the image synthesizing means, and a second means for converting a digital signal input from the image synthesizing means into an analog signal and outputting the analog signal Conversion means, a recording device for storing a signal input from the video synthesis means in response to a control signal input from the control section, and a video synthesis means in response to a control signal input from the control section Computer interface enabling display the al signal input to the computer, and a second
A video output device for outputting an analog signal input from the conversion means.

[0009]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing a digital still camera having a double exposure function and an output device thereof according to a first embodiment of the present invention. As shown in FIG. 1, a digital still camera having a double exposure function according to a first embodiment of the present invention, and an output device thereof, collect an input light, convert the converted light into an electric signal, and output the image. 10 is provided. An analog / digital conversion unit 20 is provided for converting an analog signal input from the video imaging unit 10 into a digital signal and outputting the digital signal. The video synthesizing means 30 outputs an analog / digital signal in accordance with the input control signal.
The digital signal input from the digital conversion unit 20 is stored in units of fields, and the stored signals are combined in units of fields and output. A control unit 40 is provided for outputting various control signals including a signal for controlling the video synthesizing unit 30. Further, a digital / analog conversion unit 50 that converts a digital signal input from the video synthesizing unit 30 into an analog signal and outputs the analog signal, and a signal input from the video synthesizing unit 30 according to a control signal input from the control unit 40 A recording device 60 for storing an image, a computer interface 70 for transmitting a signal input from the video synthesizing means 30 to a computer in response to a control signal input from the control unit 40, and an input from the digital / analog conversion unit 50 And a video output device 80 that outputs an analog signal.

The image pickup means 10 collects and outputs the input light, converts the light input from the lens 11 into an electric signal, and converts the light into an odd field image and an even field image. Field CCD12 to output to
Consists of

An image synthesizing means 30 stores first and second digital signals of one image input from the analog / digital converter 20 in units of fields (odd fields and even fields) in accordance with an input control signal. The memory includes memories 31 and 32 and a synthesis memory 35 for synthesizing (field by field) the signals stored in the first and second memories 31 and 32 into one image according to an input control signal and outputting the synthesized image.

Here, the digital still camera having a double exposure function according to the first embodiment of the present invention includes a video imaging unit 10, an analog / digital conversion unit 20, a video synthesis unit 30, a control unit 40, a digital / analog Converter 5
0, recording device 60 and computer interface 70
Consists of

FIG. 2 is a block diagram showing a digital still camera having a double exposure function and its output device according to a second embodiment of the present invention. As shown in FIG. 2, a digital still camera having a double exposure function according to a second embodiment of the present invention and an output device thereof are provided for condensing input light, converting the converted light into an electric signal, and outputting the signal. 110 is provided.
An analog / digital conversion unit 120 is provided for converting an analog signal input from the video imaging unit 110 into a digital signal and outputting the digital signal according to a control signal. Further, a video synthesizing unit 130 is provided, and synthesizes and outputs a digital signal input from the analog / digital conversion unit 120 in a field unit according to an input control signal. A control unit 140 for outputting various control signals including a signal for controlling the analog / digital conversion unit 120 and the video synthesizing unit 130;
A digital / analog conversion unit 150 for converting a digital signal input from the control unit into an analog signal and outputting the analog signal, and a recording device 160 for storing the signal input from the video synthesizing unit 130 in accordance with the control signal input from the control unit 140
And a video output device 170 that outputs an analog signal input from the digital / analog converter 150.

The image synthesizing means 130 has one synthesizing memory 1
Consists of 30.

Here, the digital still camera having a double exposure function according to the second embodiment of the present invention includes a video imaging unit 110, an analog / digital conversion unit 120, a video synthesis unit 130, a control unit 140, and a digital / analog conversion unit. 150 and a recording device 160.

The operation of the digital still camera having the double exposure function and the output device according to the first embodiment of the present invention will be described. FIG. 3A is a diagram showing a state in which a first image captured by a digital still camera having a double exposure function according to the first embodiment of the present invention is stored in a first memory 31, and FIG. FIGS. 4A and 4B are diagrams illustrating a state in which a second image captured by a digital still camera having a double exposure function according to the first embodiment of the present invention is stored in a second memory; FIGS. FIG. 4 is a diagram showing a mode in which images stored in a second memory 32 are combined in a combining memory 33. FIG. 4 shows a combining memory of a digital still camera having a double exposure function according to the first and second embodiments of the present invention. It is a figure which shows the video signal of the synthetic | combination image output from 33,130 on the screen of an output device.

The first image which has passed through the lens unit 11 by the photographing operation is converted into an electric signal when it is input to the field CCD 12, and is divided into an odd field image and an even field image. The first video signal divided into video is output to the analog / digital converter 20. The first odd-numbered ODD1 field data and the first even-numbered EVEN1 field data of the first image converted and output to the digital signal in the analog / digital conversion unit 20 are converted according to the field data storage signal of the control unit 40 as shown in FIG.
The data is stored in the first memory 31 as shown in FIG.

In the same manner, the second odd-numbered ODD2 field data and the second even-numbered EVEN2 field data of the second image converted and output to the digital signal in the analog / digital conversion section 20 are stored in the field data storage section of the control section 40. As shown in FIG. 3B, the second
Stored in the memory 32.

The video data stored in the two memories 31 and 32 are transferred from the two memories 31 and 32 to the combined memory 33 in accordance with the field data combined signal of the control unit 40.
3C, the first odd-numbered ODD1 field data and the second even-numbered EVEN2 field data are combined into one video (one combined data) in the combining memory 33 on a field basis as shown in FIG. , FIG. 3 (D)
, The second odd ODD2 field data and the first even EVEN1 field data are combined into one video.

Therefore, it is possible to combine two shot images into one image, and the image synthesized in the synthesizing memory 33 is the same as an image that has been exposed twice by the double exposure function in a general optical camera.

Next, the image synthesized in the synthesizing memory 33 is stored in the recording device 60 or stored in the computer or output to the monitor (or printer) via the computer interface 70 according to the instruction of the control unit 40.
Editing on a computer is also possible. The video synthesized by the synthesis memory 33 is displayed on the video output device 80 such as a TV through the digital / analog converter 50 as shown in FIG.

On the other hand, in the second embodiment of the present invention, the image synthesizing means 130 is constituted by one synthesizing memory 130, thereby saving the memory compared with the first embodiment. Therefore, the first and second odd-field and even-field video signals converted into digital signals by the analog / digital converter 120 via the lens unit 111 and the field CCD 112 are directly controlled by the control unit 140, and the combined memory 130
, The first odd-numbered ODD1 field data of the first video and the second even-numbered EVEN2 field data of the second video are combined, or the first even-numbered EVEN1 field of the first video is combined.
The field data and the second odd ODD2 field data of the second video are combined. Then, the digital / analog conversion unit 150, the recording device 160, the video output device 17
The function of 0 is the same as the function of the digital / analog conversion unit 50, the recording device 60, and the video output device 80 in the first embodiment.

[0023]

As described above, in the embodiment of the present invention, a general image is further diversified by synthesizing the image data taken twice to one digital image to form a double-exposed image. A digital still camera having a double exposure function and having an effect of sublimating an artistic image can be provided.

Also, by combining video data taken twice to form one digital video and producing and outputting a double-exposed video, a general video is further sublimated into an artistic video and the composite video output is output. It is possible to provide a video input / output device having a double exposure function, which has the effect of editing the image through a computer or the like.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a digital still camera having a double exposure function and an output device thereof according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a digital still camera having a double exposure function and an output device thereof according to a second embodiment of the present invention.

FIG. 3 is a diagram illustrating a method of storing and synthesizing two images captured by a digital still camera having a double exposure function according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a video signal of a composite video output from a composite memory of a digital still camera having a double exposure function according to an embodiment of the present invention on a screen of an output device.

[Explanation of symbols]

 10, 110 Image pickup means 12 Field CCD 20, 120 Analog / Digital conversion unit 30, 130 Image synthesis means 40, 140 Control unit 50, 150 Digital / Analog conversion unit 60, 160 Recording device 70 Computer interface 80, 170 Video output device

Claims (9)

[Claims] 1. An image pickup means for collecting input light, converting the light into an electric signal, and outputting the signal, and an analog / digital converter for converting an analog signal input from the image pickup means into a digital signal and outputting the digital signal. A video synthesizing unit that stores a digital signal input from the analog / digital conversion unit in a field unit according to an input control signal, and combines and outputs the stored signal in a field unit; A control unit that outputs a control signal including a signal for controlling the unit; a digital / analog conversion unit that converts a digital signal input from the video synthesizing unit into an analog signal and outputs the analog signal; A recording device for storing a signal input from the video synthesizing means in response to the control signal input from the control unit. A digital still camera having a double exposure function, including a computer interface for enabling transmission of a signal input from an image combining means to a computer. 2. The image pickup means according to claim 1, further comprising: a lens unit for condensing and outputting the input light; and converting the light input from the lens unit to an electric signal to convert the light into an odd field image and an even field image. 2. The digital still camera having a double exposure function according to claim 1, comprising a field CCD for outputting. 3. The first and second memories for storing a digital signal of one image input from the analog / digital converter in a field unit according to an input control signal, and the first and second memories. 2. The digital still camera having a double exposure function according to claim 1, further comprising: a synthesizing memory for synthesizing a signal stored in the second memory into one image according to an input control signal and outputting the synthesized image. 4. An image pickup means for condensing input light, converting the light into an electric signal, and outputting the signal, converting an analog signal input from the image pickup means into a digital signal, and outputting the digital signal according to a control signal. An analog-to-digital conversion unit, a video synthesizing unit that synthesizes and outputs a digital signal input from the analog-to-digital conversion unit in a field unit according to an input control signal, and outputs the analog-to-digital conversion unit and the video synthesis A control unit for outputting various control signals including a signal for controlling the unit; a digital / analog conversion unit for converting a digital signal input from the video synthesizing unit into an analog signal and outputting the analog signal; a control input from the control unit A recording device for storing a signal input from the video synthesizing means in accordance with a signal; A digital still camera having a double exposure function comprising an image output device for outputting an analog signal. 5. The image pickup means collects and outputs the input light, converts the light input from the lens into an electric signal, and outputs the electric signal to an odd field image and an even field image. 5. The digital still camera having a double exposure function according to claim 4, wherein said digital still camera comprises a field CCD. 6. The digital still camera having a double exposure function according to claim 4, wherein said image synthesizing means comprises one synthesizing memory. 7. An image pickup means for condensing input light, converting the light into an electric signal, and outputting the signal, a first conversion means for converting an analog signal input from the image pickup means into a digital signal and outputting the digital signal. Video synthesizing means for storing a digital signal input from the first conversion means in a field unit according to an input control signal, synthesizing the stored signal in a field unit and outputting the signal, A control unit that outputs various control signals including a control signal, a second conversion unit that converts a digital signal input from the video synthesizing unit into an analog signal and outputs the analog signal, according to a control signal input from the control unit A recording device for storing a signal input from the video synthesizing means, and compiling a signal input from the video synthesizing means in response to a control signal input from the control unit. A video input / output device having a double exposure function, comprising: a computer interface that enables display on a computer; and a video output device that outputs an analog signal input from the second conversion unit. 8. The image pickup means collects and outputs the input light, converts the light input from the lens into an electric signal, and outputs the electric signal to an odd field image and an even field image. 8. The video input / output device having a double exposure function according to claim 7, wherein the video input / output device comprises a field CCD. 9. The image synthesizing means includes first and second memories for storing a digital signal of one image input from the analog / digital converter in a field unit according to an input control signal; 8. The video input / output device having a double exposure function according to claim 7, further comprising: a synthesis memory for synthesizing a video stored in the second memory into one video according to an input control signal and outputting the synthesized video.