KR100195112B1 - Digital camcorder having window function - Google Patents
Digital camcorder having window function Download PDFInfo
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- KR100195112B1 KR100195112B1 KR1019960029890A KR19960029890A KR100195112B1 KR 100195112 B1 KR100195112 B1 KR 100195112B1 KR 1019960029890 A KR1019960029890 A KR 1019960029890A KR 19960029890 A KR19960029890 A KR 19960029890A KR 100195112 B1 KR100195112 B1 KR 100195112B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2621—Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0135—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
본 발명은 디지털 캠코더에 관한 것으로서, 특히 뷰우파인더(View Finder)에 촬상되어 기록되는 영역과 기록되지 않는 영역을 표시하는 윈도우 기능을 갖는 디지털 캠코더에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital camcorder, and more particularly, to a digital camcorder having a window function for displaying an area photographed and recorded in a view finder and an area not recorded.
본 발명에 따른 윈도우 기능을 갖는 디지털 캠코더는 촬상된 영상데이터의 화면 중에서 기록될 윈도우 영역의 영상데이터를 억세스하여 저장하고 저장된 영상데이터의 각 데이터의 중간값을 보간하여 원래의 화면 크기로 업샘플링하여 기록하며 또한 촬상된 영상데이터를 디스플레이하는 뷰우파인더에서 기록될 윈도우 영역을 표시함으로써, 사용자가 현재 기록하고 있는 대상과 타이밍에 맞게 인접된 다른 대상을 매칭시켜 촬상할 수 있는 기능을 제공한다.The digital camcorder having a window function according to the present invention accesses and stores the image data of the window area to be recorded among the screens of the captured image data, and intersamples the intermediate value of each data of the stored image data to upsample it to the original screen size. By displaying the window area to be recorded in the viewfinder for recording and displaying the captured image data, it provides a function of allowing the user to image by matching an object currently being recorded with another object adjacent to the timing.
Description
본 발명은 디지털 캠코더에 관한 것으로서, 특히 뷰우파인더(View Finder)에 촬상되어 기록되는 영역과 기록되지 않는 영역을 표시하는 윈도우 기능을 갖는 디지털 캠코더에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital camcorder, and more particularly, to a digital camcorder having a window function for displaying an area photographed and recorded in a view finder and an area not recorded.
일반적으로 디지털 캠코더를 이용하여 피사체의 영상을 기록시에 한 가지 대상뿐만 아니라 다수의 대상을 촬상하는 경우가 있다.Generally, when recording an image of a subject using a digital camcorder, there are cases where a plurality of objects are captured as well as one object.
이때, 디지털 캠코더로 피사체를 촬상하는 사용자는 뷰우파인더에 디스플레이된 피사체를 집중하여 기록하기 때문에 현재 기록되지 않고 주위에 있는 다른 대상을 효과적으로 촬상하여 기록하기 힘들었다. 또한, 피사체를 촬상하면서 주위의 상황에 따라 다른 대상을 촬상하고자 할 경우에도 뷰우파인더에는 현재 촬상되어 기록되는 영상만 디스플레이되기 때문에 촬상하고자 하는 대상을 포착하여 타이밍에 맞게 캠코더의 촬상각도를 조정하여 대상물의 영상을 기록하기가 어려웠다.At this time, since a user photographing a subject with a digital camcorder concentrates and records a subject displayed in the viewfinder, it is difficult to effectively photograph and record another object that is not currently recorded and is around. In addition, even if you want to capture a different object according to the surrounding situation while capturing the subject, the viewfinder displays only the image that is currently captured and recorded. It was difficult to record the video.
본 발명은 상기 문제점을 해결하고자 창출한 것으로서, 뷰우파인더에 디스플레이되는 촬상 화면에서 기록되는 화면 영역을 표시한 윈도우를 설정하여 현재 기록하고 있는 대상과 타이밍에 맞게 인접된 다른 대상을 매칭시켜 촬상할 수 있는 윈도우 기능을 갖는 디지털 캠코더를 제공하는 데 목적이 있다.The present invention has been made to solve the above problems, and by setting a window displaying the screen area to be recorded on the image pick-up screen displayed in the viewfinder, it is possible to image by matching the currently recorded object with another object close to the timing. It is an object of the present invention to provide a digital camcorder having a window function.
도 1은 본 발명에 따른 윈도우 기능을 갖는 디지털 캠코더의 주요 블록도이다.1 is a main block diagram of a digital camcorder having a window function according to the present invention.
도 2는 도 1의 각 블록에서 샘플링되어 처리되는 영상데이터에 따른 화면크기를 나타낸다.FIG. 2 illustrates a screen size according to image data sampled and processed in each block of FIG. 1.
상기 목적을 달성하기 위한 본 발명에 따른 윈도우 기능을 갖는 디지털 캠코더에 있어서, 피사체를 촬상하여 A/D변환시킨 영상데이터를 저장하는 프레임 메모리; 상기 프레임 메모리에 저장된 영상데이터중에서 윈도우영역에 해당하는 영상데이터의 어드레스와 리드, 라이트 제어신호를 출력하는 어드레스생성부; 상기 어드레스와 리드, 라이트 제어신호에 의해 리드된 상기 프레임 메모리로부터 윈도우 영역의 영상데이터를 저장하는 윈도우 메모리; 촬상화면상의 윈도우영역표시 데이터를 생성하는 윈도우영역 표시생성부; 상기 윈도우영역 표시데이터와 상기 프레임 메모리의 촬상데이터를 믹스하는 믹스부; 상기 믹스부에서 출력된 윈도우영역이 표시된 촬상데이터를 아날로그 영상신호로 변환하는 D/A변환부; 상기 아날로그 영상신호를 디스플레이시키는 뷰우파인더; 및 상기 윈도우 메모리에 저장된 윈도우영역의 영상데이터를 유입하여 원래의 화면크기로 기록되도록 상기 윈도우영역의 영상데이터의 중간값을 보간하여 소정의 비로 업샘플링하는 업샘플링부를 포함함을 특징으로 한다.According to an aspect of the present invention, there is provided a digital camcorder having a window function, comprising: a frame memory for storing image data obtained by capturing an A / D conversion of a subject; An address generator configured to output an address, a read and a write control signal of the image data corresponding to the window area among the image data stored in the frame memory; A window memory for storing image data of a window area from the frame memory read by the address, read and write control signals; A window region display generation unit for generating window region display data on the captured screen; A mixing unit which mixes the window area display data and the imaging data of the frame memory; A D / A converting unit converting the captured image data displaying the window region output from the mixing unit into an analog image signal; A viewfinder for displaying the analog video signal; And an upsampling unit which intersamples an intermediate value of the image data of the window region and upsamples the image data of the window region stored in the window memory so as to be recorded at the original screen size.
이하 첨부 도면을 참조하여 본 발명을 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 윈도우 기능을 갖는 디지털 캠코더의 주요 블록도이다.1 is a main block diagram of a digital camcorder having a window function according to the present invention.
도 1의 도시된 장치는 촬상부(2), A/D변환부(4), 프레임 메모리(6), 윈도우 메모리(8), 어드레스생성부(10), 믹스부(12), 윈도우영역표시 생성부(14), D/A변환부(16), 뷰우파인더(20), 업샘플링부(22)를 포함함을 특징으로 한다.The apparatus shown in FIG. 1 includes an imaging unit 2, an A / D conversion unit 4, a frame memory 6, a window memory 8, an address generating unit 10, a mixing unit 12, and a window area display. And a generation unit 14, a D / A conversion unit 16, a viewfinder 20, and an upsampling unit 22.
도 1의 구성에 따른 동작을 살펴보면, 촬상부(2)에서 피사체를 촬상하여 아날로그 영상신호로 출력하면 A/D변환부(4)는 신호처리를 위하여 촬상된 아날로그 영상신호를 디지털 영상신호로 변환시켜 프레임 메모리(6)에 저장한다.Referring to the operation according to the configuration of FIG. 1, when the image capturing unit 2 captures a subject and outputs the analog image signal, the A / D converter 4 converts the captured analog image signal into a digital image signal for signal processing. To the frame memory 6.
한편, 윈도우영역표시 생성부(14)는 뷰우파인더(20)에 디스플레이되는 촬상 영상데이터 화면에서 비디오테이프에 기록되는 영상부분과 기록되지 않는 영상부분을 사용자가 윈도우영역에 의해 구분할 수 있도록 윈도우영역 표시데이터를 생성하여 믹스부(12)에 출력한다. 믹스부(12)는 프레임 메모리(6)에서 촬상된 영상데이터를 유입하여 윈도우 영역표시 데이터와 믹스를 하여 D/A변환부(16)에 출력한다.On the other hand, the window area display generation unit 14 displays the window area so that the user can distinguish between the image part recorded on the video tape and the unrecorded image part in the captured image data screen displayed on the viewfinder 20 by the window area. The data is generated and output to the mixing unit 12. The mixing unit 12 takes in image data captured by the frame memory 6, mixes it with the window area display data, and outputs the mixed data to the D / A converter 16.
D/A변환부(16)는 믹스된 영상데이터를 아날로그 영상신호로 변환시켜 뷰우파인더(20)에 출력하면 뷰우파인더(20)는 촬상된 영상화면에서 비디오테이프에 기록되는 윈도우영역을 디스플레이한다.The D / A converter 16 converts the mixed image data into an analog image signal and outputs the analog image signal to the viewfinder 20. The viewfinder 20 displays a window area recorded on the video tape on the captured image screen.
도 2a는 도 1의 뷰우파인더에 디스플레이되는 촬상된 영상과 윈도우영역을 도시한다.FIG. 2A illustrates a captured image and a window area displayed in the viewfinder of FIG. 1.
한편, 어드레스생성부(10)는 프레임 메모리(6)에 저장된 촬상 영상데이터 중에서 윈도우 영역의 영상데이터를 리드하여 윈도우 메모리(8)에 저장한다. 이때, 어드레스생성부(10)는 윈도우영역의 데이터를 억세스하여 저장하기 위한 어드레스와 제어신호를 생성하여 프레임 메모리(6)와 윈도우 메모리(8)에 출력한다.On the other hand, the address generator 10 reads the image data of the window area from the captured image data stored in the frame memory 6 and stores the image data in the window memory 8. At this time, the address generator 10 generates an address and a control signal for accessing and storing the data of the window area and outputs the address and control signals to the frame memory 6 and the window memory 8.
도 2b는 도 1의 윈도우 메모리에 저장된 영상데이터의 화면을 도시한다.FIG. 2B illustrates a screen of image data stored in the window memory of FIG. 1.
도 2c는 도 1의 업샘플링부에서 업샘플링된 영상데이터의 화면을 도시한다.FIG. 2C illustrates a screen of image data upsampled by the upsampling unit of FIG. 1.
업샘플링부(22)는 윈도우 메모리(8)에 저장된 정상화면 보다 4분의 3의 화면크기를 갖는 윈도우영역의 영상데이터를 각 데이터간의 중간값으로 보간하여 정상적인 화면크기의 데이터로 업샘플링하여 출력한다. 업샘플링되어 출력된 정상화면 크기의 영상데이터는 통상의 디지털 캠코더 기록방식으로 기록한다.The upsampling unit 22 interpolates the image data of the window area having the screen size of three quarters of the normal screen stored in the window memory 8 to an intermediate value between each data, and upsamples the data to the normal screen size. do. The upsampled and output image data of the normal picture size is recorded by a normal digital camcorder recording method.
상술한 바와 같이 본 발명에 따른 윈도우 기능을 갖는 디지털 캠코더는 뷰우파인더에 디스플레이된 촬상 화면에서 비디오 테이프에 기록되는 화면 영역을 표시한 윈도우 영역을 표시하여 사용자가 현재 촬상되어 기록되고 있는 대상과 타이밍에 맞게 인접된 다른 대상을 매칭시켜 촬상할 수 있는 기능을 제공한다.As described above, a digital camcorder having a window function according to the present invention displays a window area indicating a screen area recorded on a video tape on an image screen displayed in the viewfinder so that the user can select the object and timing at which the user is currently captured and recorded. It provides a function that can image by matching other adjacent objects to fit.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019960029890A KR100195112B1 (en) | 1996-07-23 | 1996-07-23 | Digital camcorder having window function |
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| KR1019960029890A KR100195112B1 (en) | 1996-07-23 | 1996-07-23 | Digital camcorder having window function |
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| KR980013283A KR980013283A (en) | 1998-04-30 |
| KR100195112B1 true KR100195112B1 (en) | 1999-06-15 |
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| US6191818B1 (en) * | 1998-08-14 | 2001-02-20 | Intel Corporation | Method and apparatus for generating a projectable subject viewfinder |
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