KR100189053B1 - Digital still camera with the multi-exposure function - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital still camera having a multiple exposure function (BULB function or B shutter function), comprising: image capturing means for condensing input light, converting the light into an electrical signal, and outputting the analog signal inputted from the image capturing means; First converting means for converting and converting a signal into a digital signal, an image synthesizing means for storing a digital signal input from the first converting means according to an input control signal, and synthesizing and outputting the stored signal; A control unit for outputting a control signal including a signal for controlling the synthesizing means, second converting means for converting the digital signal inputted from the image synthesizing means into an analog signal, and outputting the digital signal according to the control signal inputted from the control unit. A recording device for storing a signal input from the image synthesizing means, and a control scene input from the control unit And a computer interface for transmitting the signal inputted from the image synthesizing means to a computer, thereby synthesizing the general image by multiplexing image data into a single digital image to create a multi-exposure image. The present invention relates to a digital still camera having a multi-exposure function, which has an effect of sublimation into an artistic image.

Description

Digital Still Camera with Multiple Exposures

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

(A) to (d) of FIG. 2 are diagrams showing pixel data stored in each memory after shooting with a digital still camera having a multiple exposure function according to an embodiment of the present invention.

(A) to (c) of FIG. 3 show examples of three methods of synthesizing pixel data stored in each memory in the composite memory after three shots with a digital still camera having a multiple exposure function according to an embodiment of the present invention. Drawing.

* Explanation of symbols for main parts of the drawings

10: image pickup means 20: analog / digital conversion unit

30: image synthesis means 40: control unit

50: digital / analog converter 60: recording device

70: computer interface 80: video output device

The present invention relates to a digital still camera having a multiple exposure function (BULB function or B shutter function), and more particularly, to a digital still camera having a multiple exposure function by synthesizing image data photographed several times.

In general, a digital still camera (DSC) is a product made by the concept of a film camera, and refers to a camera that records and stores only a specific scene (still image) instead of continuously recording and storing a motion picture. When the Charge Coupled Device (CCD) receives the light, the signal converter converts the signal into a digital signal and compresses the signal into a memory. Scenes recorded in the memory can be viewed on a television (TV) or computer monitor, can be printed using a color printer, or can be modified by computer operation. In case of urgent need of photographic material, it can be connected to computer and sent remotely through telephone line immediately, so it is not restricted by time and space.

On the other hand, in general optical cameras using film, multiple exposure functions can be used to take an object multiple times on the same film surface, so that multiple images are overlapped and used in fields such as art photography.

However, since the conventional digital still camera does not have the multiple exposure function of the general optical camera as described above, there is a problem that it cannot be used for art photography and bulb shooting.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and by combining the image data photographed several times into a single digital image to create a multi-exposure image digital having a multi-exposure function like a general optical camera It is to provide a still camera.

In addition, another object of the present invention is to provide an image input-output device having a multi-exposure function for synthesizing multiple image data taken into a single digital image to create and output a multi-exposure image.

As a means for achieving the above object, the configuration of the present invention, the image pickup means for condensing the input light and converting the light into an electrical signal, and converts the analog signal input from the image pickup means to a digital signal for output And a video synthesizing means for storing the digital signal inputted from the first converting means according to the input control signal, synthesizing and outputting the stored signal, and a signal for controlling the video synthesizing means. A control unit for outputting a control signal, second converting means for converting the digital signal input from the image synthesizing means into an analog signal, and outputting the signal input from the image synthesizing means according to the control signal input from the control unit. A recording apparatus for storing, to the image synthesizing means according to a control signal input from the controller And a computer interface for transmitting the input signal to the computer.

As a means for achieving the above object, another configuration of the present invention comprises: image pickup means for condensing input light and converting the light into an electrical signal and outputting the same; converting an analog signal input from the image pickup means into a digital signal; First conversion means for outputting the data, an image synthesizing means for storing the digital signal inputted from the first conversion means according to the input control signal, synthesizing the stored signal and outputting the signal, and a signal for controlling the image synthesizing means. A control unit for outputting various control signals, including second conversion means for converting and outputting a digital signal input from the image synthesizing means into an analog signal, and inputting from the image synthesizing means according to a control signal input from the control unit. A recording device for storing the received signal, the zero in accordance with a control signal input from the controller Comprises an image output device for outputting the computer interface, the analog signal input from the second conversion means the one that can be displayed on the signal input from the synthesis unit to the computer.

By the above configuration, the most preferred embodiment that can be easily carried out by those skilled in the art with reference to the present invention will be described in detail with reference to the accompanying drawings.

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

As shown in FIG. 1, a digital still camera having a multi-exposure function and an output device according to an embodiment of the present invention include image capturing means 10 for condensing input light and converting the light into an electrical signal. An analog / digital converter 20 for converting and outputting an analog signal input from an image photographing means 10 into a digital signal, and the digital signal input from the analog / digital converter 20 according to the input control signal And a control unit 40 for outputting various control signals including a signal for controlling the image synthesizing means 30, the image synthesizing means 30 for synthesizing the stored signals, and outputting the synthesized means. The digital / analog converter 50 converts the digital signal input from the digital signal 30 into an analog signal, and outputs the analog signal according to the control signal input from the controller 40. A recording device 60 for storing the signal input from the 30, and a computer interface for transmitting the signal input from the image synthesizing means 30 to a computer according to the control signal input from the control unit 40. 70, an image output device 80 for outputting an analog signal input from the digital / analog converter 50.

The image capturing means 10 includes a lens unit 11 for condensing and outputting light and a solid state image pickup device 12 for converting and outputting light input from the lens unit 11 into an electrical signal.

The image synthesizing means 30 stores a plurality of memories each storing the digital signal input from the analog / digital converter 20 in one image unit according to the input control signal. And a synthesized memory 35 for synthesizing the signals stored in the (31, 32, 33, ... 34) and the plurality of memories (31, 32, 33, ... 34) into one image according to the input control signal.

Herein, the digital still camera having the multi-exposure function according to the embodiment of the present invention includes an image photographing means 10, an analog / digital converter 20, an image synthesizer 30, a controller 40, and a digital / analog conversion. And a unit 50, a recording device 60, and a computer interface 70.

The operation of the digital still camera having the multiple exposure function and the output device according to the embodiment of the present invention having the above-described configuration will be described with reference to the drawings.

(A) to (d) of FIG. 2 show pixel data stored in each memory after shooting with a digital still camera having a multi-exposure function according to an embodiment of the present invention, and (a) shows first pixel data taken. Is a diagram showing a form in which the second photographed pixel data is stored in the second memory, and (c) is a diagram showing a form in which the second photographed pixel data is stored in the third memory. (D) is a diagram showing a form in which the N-th photographed pixel data is stored in the N-th memory, and indicated as A11 indicates pixel data which is the minimum size of the image data.

(A) to (c) of FIG. 3 show examples of three methods of synthesizing pixel data stored in each memory in the composite memory after three shots with a digital still camera having a multiple exposure function according to an embodiment of the present invention. Drawing.

By the photographing operation, the first image is input to the solid state image pickup device 12 through the lens unit 11, converted into an electric signal, and output to the analog / digital converter 20. The pixel data (Pixel; Picture element) of the first image which is converted into a digital signal by the analog / digital converter 20 and outputted is the first data as shown in (a) of FIG. 2 according to the pixel data storage signal of the controller 40. It is stored in the memory 31. In the same manner, the next images to be input are sequentially stored in the second memory 32, the third memory 33, and the Nth memory 34 as shown in (b), (c), and (d) of FIG. Pixel data stored in each of the memories 31, 32, 33, and 34 is output from each of the memories 31, 32, 33, and 34 to the synthesized memory 35 according to the pixel data synthesized signal of the controller 40. 35 is synthesized into one image (one piece of composite data) on a pixel basis. Accordingly, it is possible to synthesize one image of the image taken N times, so that the image synthesized in the synthesis memory 35 is the same as the image exposed N times by the multiple exposure function in the general optical camera.

Next, the synthesized image in the synthesis memory 35 is stored in the recording device 70 by the command of the control unit 40 or stored in a computer or output to a monitor (or printer) via the computer interface 80, It is also possible to edit. In addition, the image synthesized in the synthesis memory 35 may be displayed on an image output device 80 such as a television (TV) through the digital / analog converter 50.

On the other hand, in this embodiment, as shown in Fig. 3, the synthesis of the image taken three times in the synthesis memory 35 has been described in three ways. That is, (a) of FIG. 3 shows the first synthesis data stored in the synthesis memory 35 by the first method, and the first synthesis data is configured as follows. The pixel data of the first, second, and third shot images are stored in the first memory 31, the second memory 32, and the third memory 33, respectively, and the first line of the first line of the synthesis memory 35 is stored. In the first position ①, the first pixel data A11 of the first line in the first memory 31, and in the second position ② of the first line of the synthesis memory 35, the second memory 32 The second pixel data B12 of the first line contained in the), and the third pixel data of the first line contained in the third memory 33 are located at the third position (③) of the first line of the composite memory 35. The data is synthesized by storing (C12). The pixel data of the remaining lines of the synthesis memory 35 is also filled in the same way.

FIG. 3 (b) shows the second synthesis data stored in the synthesis memory 35 in the second method. The second synthesis data is recorded by pushing the pixels one pixel from the second line as compared with the first synthesis data. Way.

(C) of FIG. 3 shows third synthesis data stored in the synthesis memory 35 in a third method, which is written by pushing two pixels from the second line in comparison with the first synthesis data. Way.

As described above, in the embodiment of the present invention, the multi-exposure function has the effect of sublimating the general image into a more diverse and artistic image by making the image data photographed several times into a multi-exposure image synthesized into one digital image. It is possible to provide a digital still camera having a.

In addition, by synthesizing the image data taken several times into a single digital image to produce a multi-exposure image, it is possible to sublimate the general image into a more artistic image and to edit the output composite image through a computer, An image input / output device having a multiple exposure function can be provided.

Claims (6)

Image pickup means for condensing the input light into an electrical signal and outputting the first signal; first conversion means for converting the analog signal inputted from the image pickup means into a digital signal and outputting the digital signal; A control unit for storing a digital signal input from the converting unit, synthesizing the stored signal, and outputting a control signal including a signal for controlling the image synthesizing unit, and inputting from the image synthesizing unit. Second conversion means for converting and outputting a digital signal into an analog signal, a recording device for storing a signal input from the image synthesizing means according to a control signal input from the controller, and a control signal input from the controller A computer that enables the computer to transmit a signal input from the image synthesis means to a computer. Digital still camera with multiple exposure function, including the interface. The apparatus of claim 1, wherein the image synthesizing means comprises a plurality of memories for storing the digital signals input from the first converting means in one image unit and a signal stored in the plurality of memories according to an input control signal. A digital still camera having a multiple exposure function comprising a composite memory for synthesizing and outputting a single image according to an input control signal. The digital still camera having a multiple exposure function according to claim 2, wherein the synthesis memory is synthesized in units of pixels during image synthesis. Image pickup means for condensing the input light into an electrical signal and outputting the first signal; first conversion means for converting the analog signal inputted from the image pickup means into a digital signal and outputting the digital signal; A control unit for storing various digital signals inputted from the converting means, for synthesizing and storing the stored signals, for outputting various control signals including a signal for controlling the image synthesizing means, and inputting from the image synthesizing means; Second converting means for converting the converted digital signal into an analog signal and outputting the analog signal; a recording device for storing the signal input from the image synthesizing means according to the control signal input from the controller; and a control signal input from the controller. Accordingly, the computer can display a signal input from the image synthesizing means on a computer. Emitter interface, a video input and output device having a plurality of exposure function comprises a video display device for the above-mentioned second outputs the analog signal input from the conversion means. 5. The apparatus of claim 4, wherein the image synthesizing means stores a plurality of memories each storing a digital signal input from the first converting means in one image unit according to an input control signal and a signal stored in the plurality of memories. And an image input / output device having a multiple exposure function, which is composed of a synthesized memory for synthesizing a single image according to an input control signal. The image input / output device having a multi-exposure function according to claim 5, wherein the synthesis memory synthesizes the image unit in pixel units.