KR930015652A - Interpolation Method for Sequential Scanning of Image Signal - Google Patents

Interpolation Method for Sequential Scanning of Image Signal Download PDF

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Publication number
KR930015652A
KR930015652A KR1019910024244A KR910024244A KR930015652A KR 930015652 A KR930015652 A KR 930015652A KR 1019910024244 A KR1019910024244 A KR 1019910024244A KR 910024244 A KR910024244 A KR 910024244A KR 930015652 A KR930015652 A KR 930015652A
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KR
South Korea
Prior art keywords
interpolation method
correlation
interpolation
sequential scanning
signal
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KR1019910024244A
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Korean (ko)
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KR960011220B1 (en
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유경걸
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강진구
삼성전자 주식회사
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Priority to KR1019910024244A priority Critical patent/KR960011220B1/en
Publication of KR930015652A publication Critical patent/KR930015652A/en
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Publication of KR960011220B1 publication Critical patent/KR960011220B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections

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

Abstract

고화질 텔레비젼에 있어서 영상의 비월주사를 순차주사로 변환하여 화질의 염화현상을 방지하기 위한 영상신호의 순차주사를 위한 보간방법이 설명되는바, 이는 입력되는 휘도신호의 과거화소와 현재화소 쌍의 3 X 3 윈도우 내에서 저주파에 대해서는 경사보간을 하고, 휘도신호중 고주파신호에 대해서는 상측 화소간 보간을 수행하도록 하여 화질의 열화현상을 제거함으로써 선명한 화면을 제공하기 위한 것이다.An interpolation method for sequential scanning of a video signal for converting interlaced scanning of an image into sequential scanning in a high definition television to prevent chlorination of image quality is described. It is to provide a clear screen by eliminating deterioration of image quality by performing interpolation on low frequency and inter-pixel interpolation on high frequency signal among luminance signals.

Description

영상신호의 순차주사를 위한 보간방법Interpolation Method for Sequential Scanning of Image Signal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 따른 보간의 주파수 특성 그래프, 제2도는 본 발명을 위한 경사보간의 구성도, 제3도는 3 X 3 윈도우의 화소 관계도.1 is a graph of frequency characteristics of interpolation according to the present invention, FIG. 2 is a schematic diagram of gradient interpolation for the present invention, and FIG. 3 is a pixel relationship diagram of a 3 X 3 window.

Claims (5)

NTSC 영상신호에서 순차 주사를 위한 라인강 경사상관 보관 방법에 있어서, 입력되는 휘도신호의 과거화소와 현재 화소쌍의 3 X 3 위도우내에서 저주파에 대해서는 경사상과 보간을 하고, 상기의 휘도신호중 고주파 신호에 대해서는 상측 화소간 보간을 함을 특징으로 하는 영상신호의 순차주사를 위한 보간방법.In the method of storing the sloped correlation of lines in an NTSC video signal, the gradient is interpolated with the low frequency within the 3 × 3 latitude of the past pixel and the current pixel pair of the input luminance signal, and the high frequency signal of the luminance signals is interpolated. The interpolation method for sequential scanning of an image signal, characterized by interpolation between upper pixels. 제1항에 있어서, 상기의 경사보간방법은 현재의 화소상관쌍과 과거의 화소상관쌍과의 합으로 최종 상관도를 판단함을 특징으로 하는 영상신호의 순차주사를 위한 보간방법.The interpolation method of claim 1, wherein the gradient interpolation method determines a final correlation based on a sum of a current pixel correlation pair and a past pixel correlation pair. 제2항에 있어서, 상기의 보간방법은 상관관계의 정도를 기준신호로 가변시켜 상대적으로 타당치 않은 상관에 대해서 평균 보간을 함을 특징으로 하는 영상신호의 순차주사를 위한 보간방법.The interpolation method according to claim 2, wherein the interpolation method changes the degree of correlation to a reference signal to perform average interpolation for a relatively invalid correlation. 제2항에 있어서, 상기의 보간방법은 우선 순위를 주어 상관도를 고려하여 경사보간을 함을 특징으로 하는 영상신호의 순차주사를 위한 보간방법.3. The interpolation method according to claim 2, wherein the interpolation method is a gradient interpolation in consideration of a degree of correlation given priority. 제4항에 있어서, 상기의 보간방법은 우선순위와 상관도가 동일한 경우 동일 우선 순위쌍인 4개 화소를 평균해서 보간함을 특징으로 하는 영상신호의 순차주사를 위한 보간방법.5. The interpolation method according to claim 4, wherein the interpolation method interpolates four pixels which are the same priority pairs when the priority and the correlation are the same. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910024244A 1991-12-24 1991-12-24 Inter polation method of image signal KR960011220B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910024244A KR960011220B1 (en) 1991-12-24 1991-12-24 Inter polation method of image signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024244A KR960011220B1 (en) 1991-12-24 1991-12-24 Inter polation method of image signal

Publications (2)

Publication Number Publication Date
KR930015652A true KR930015652A (en) 1993-07-24
KR960011220B1 KR960011220B1 (en) 1996-08-21

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Application Number Title Priority Date Filing Date
KR1019910024244A KR960011220B1 (en) 1991-12-24 1991-12-24 Inter polation method of image signal

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KR960011220B1 (en) 1996-08-21

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