KR970060911A - Image format conversion apparatus and method - Google Patents

Image format conversion apparatus and method Download PDF

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Publication number
KR970060911A
KR970060911A KR1019960001720A KR19960001720A KR970060911A KR 970060911 A KR970060911 A KR 970060911A KR 1019960001720 A KR1019960001720 A KR 1019960001720A KR 19960001720 A KR19960001720 A KR 19960001720A KR 970060911 A KR970060911 A KR 970060911A
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KR
South Korea
Prior art keywords
format
memory
output
vertical
image
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KR1019960001720A
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Korean (ko)
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KR0166893B1 (en
Inventor
한동일
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구자홍
엘지전자 주식회사
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Priority to KR1019960001720A priority Critical patent/KR0166893B1/en
Publication of KR970060911A publication Critical patent/KR970060911A/en
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Publication of KR0166893B1 publication Critical patent/KR0166893B1/en

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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
    • 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
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Graphics (AREA)
  • Television Systems (AREA)

Abstract

본 발명은 GA에서 제안된 6가지의 HD영상포맷과 SD영상포맷 및 디지탈 NTSC영상포맷을 720×1280순차주사포맷이나 1080×1920비월주사 포맷으로 변환하는 영상포맷 변환장치 및 방법에 관한 것이다.The present invention relates to an image format conversion apparatus and method for converting the six HD image formats, the SD image format, and the digital NTSC image format proposed in the GA into the 720 × 1280 progressive scan format or the 1080 × 1920 interlaced scan format.

본 발명은 종래의 포맷변환장치가 휘도와 컬러신호의 포맷변환처리를 달리함으로써 컬러신호의 포맷변환시 부가적인 하드웨어가 사용되며, 프레임 저장용 메모리가 많이 사용되던 점을 감안하여 휘도 및 컬러의 입력 영상 데이타를 출력 영상포맷에 맞춰 수직 및 수평 간축하여 메모리에 일시 저장하고, 상기 메모리에 저장된 데이타 출력시 인터레이싱 또는 디인터레이싱 및 레이트 변환을 행하여 출력하며, 상기 메모리의 출력 데이타를 수직 및 수평 보간하여 최종 출력 영상 포맷으로 출력함으로써 HD 및 SD 입력 영상을 HDTV에 쉽게 나타낼 수 있으며, 디지탈 NTSC신호도 HD영상으로 변환할 수 있게 된다. 그리고 간축수단과 보간수단 사이에 메모리를 사용하고 메모리 제어를 통해 인터레이싱이나 디인터레이싱 및 레이트 변환기능을 수행하므로써 ASIC구현이 용이토록 한 것이다.In view of the fact that additional hardware is used for format conversion of a color signal by using a conventional format conversion apparatus for converting brightness and color signal format conversion processing and a memory for storing frames is used in many cases, Interlacing or deinterlacing and rate conversion are performed for outputting the data stored in the memory, and the output data is vertically and horizontally interpolated to output the final output By outputting to the image format, HD and SD input image can be easily displayed on HDTV, and digital NTSC signal can be converted into HD image. The ASIC implementation is useful by using memory between the shrinking and interpolating means and performing interlacing, deinterlacing and rate conversion functions through memory control.

Description

영상포맷 변환장치 및 방법Image format conversion apparatus and method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명에 따른 영상포맷 변환장치의 구성도.FIG. 2 is a block diagram of a video format conversion apparatus according to the present invention; FIG.

제4도는 본 발명을 HDTV용 포맷변환에 적용한 구성예도.FIG. 4 is a configuration example in which the present invention is applied to HDTV format conversion.

제7도는 본 발명을 NTSD신호용 포맷변환에 적용한 구성예도.FIG. 7 is a configuration example in which the present invention is applied to format conversion for NTSD signals. FIG.

Claims (4)

입력 영상 데이타를 출력 영상 데이타의 포맷에 맞춰 수직 간축 및 수평 간축하는 수직 및 수평 간축부와, 상기 수직 및 수평 간축부의 출력이 일시 저장되는 메모리와, 상기 메모리에 저장된 데이타의 출력시 상기 출력 영상 데이타의 포맷에 맞춰 출력되도록 인터레이싱 또는 디인터레이싱 및 레이트 변환을 제어하는 메모리 제어부와, 상기 메모리의 출력을 출력 영상 데이타의 포맷으로 수직 및 수평 보간하는 수직 및 수평 보간부와, 상기 입력 영상 데이타의 포맷에 맞는 데이타 경로를 제어하는 경로 제어부로 구성됨을 특징으로 하는 영상포맷 변환장치.A memory for storing input image data in accordance with the format of the output image data, the memory for storing the output of the vertical and horizontal shafts temporarily, the memory for storing the output of the vertical and horizontal shafts, A memory controller for controlling interlacing or deinterlacing and rate conversion so as to be output in accordance with the format of the image data; a vertical and horizontal interpolator for vertically and horizontally interpolating the output of the memory in a format of output image data; And a path control unit for controlling a data path corresponding to the format. 제1항에 있어서, 상기 수직 및 수평 간축부와 수직 및 수평 보간부는 휘도신호 및 컬럭신호에 대하여 각각 구성됨을 특징으로 하는 영상포맷 변환장치.2. The apparatus of claim 1, wherein the vertical and horizontal interpolators and the vertical and horizontal interpolators are configured for a luminance signal and a column signal, respectively. 휘도 및 컬러의 입력 영상 데이타를 출력 영상 포맷에 맞춰 수직 및 수평 산축하여 메모리에 일시 저장하고, 상기 메모리에 저장된 데이타 출력시 인터레이싱 또는 디인터레이싱 및 레이트 변환을 행하여 출력하며, 상기 메모리의 출력 데이타를 수직 및 수평 보간하여 최종 출력 영상 포맷으로 출력함을 특징으로 하는 영상포맷 변환방법.A memory for temporarily storing input image data of luminance and color in a memory in accordance with an output image format, performing interlacing, deinterlacing and rate conversion upon outputting the data stored in the memory, and outputting the output data of the memory in a vertical And horizontal interpolation, and outputs the resultant image as a final output image format. 제3항에 있어서, 상기 수직 밍 수평 간축과 수직 및 수평 보간은 경로 제어에 의해 간축 및 보간을 행하거나 바이패스됨을 특징으로 하는 영상포맷 변환방법.4. The method of claim 3, wherein the vertical and horizontal interpolation and the vertical and horizontal interpolation are performed by interpolation or bypass by path control. ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960001720A 1996-01-26 1996-01-26 Image format transfer apparatus and method thereof KR0166893B1 (en)

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Application Number Priority Date Filing Date Title
KR1019960001720A KR0166893B1 (en) 1996-01-26 1996-01-26 Image format transfer apparatus and method thereof

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KR1019960001720A KR0166893B1 (en) 1996-01-26 1996-01-26 Image format transfer apparatus and method thereof

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KR970060911A true KR970060911A (en) 1997-08-12
KR0166893B1 KR0166893B1 (en) 1999-03-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030060617A (en) * 2002-01-10 2003-07-16 엘지전자 주식회사 apparatus and method for format conversion of variable structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100628190B1 (en) * 1999-03-15 2006-09-27 엘지전자 주식회사 Converting Method of Image Data's Color Format

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030060617A (en) * 2002-01-10 2003-07-16 엘지전자 주식회사 apparatus and method for format conversion of variable structure

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