KR950006628A - Time base interpolator - Google Patents

Time base interpolator Download PDF

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Publication number
KR950006628A
KR950006628A KR1019930017207A KR930017207A KR950006628A KR 950006628 A KR950006628 A KR 950006628A KR 1019930017207 A KR1019930017207 A KR 1019930017207A KR 930017207 A KR930017207 A KR 930017207A KR 950006628 A KR950006628 A KR 950006628A
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South Korea
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time axis
motion
interpolation filter
pixels
time base
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KR970008531B1 (en
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김종훈
김정근
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배순훈
대우전자 주식회사
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Television Systems (AREA)

Abstract

본 발명은 시간축으로 프레임 레이트(frame rete)를 바꾸는데 이용되는 시간축 내삽기에 관한 것으로, 시간축 내삽필터를 2차원 필터 형태로 전환함으로써, 메모리 억세스와 곱셈 및 덧셈의 수행 횟수를 줄이게 되어 하드웨어 구현이 용이하고 실시간으로 시간축 내삽이 가능하도록 한 것이다.The present invention relates to a time axis interpolator used to change a frame rate on a time axis. By converting the time axis interpolation filter into a two-dimensional filter type, it is possible to easily implement hardware by reducing the number of times of memory access, multiplication and addition. This allows the time base interpolation in real time.

Description

시간축 내삽기Time base interpolator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 일반적인 시간축 내삽기의 블럭도,1 is a block diagram of a general time base interpolator,

제2도는 일반적인 이동 보상 및 내삽에 이용되는 픽셀 추정의 일실시예를 나타낸 도면.2 illustrates one embodiment of pixel estimation used for general motion compensation and interpolation.

Claims (2)

입력되는 영상신호의 프레임의 화소들이 이전 프레임에 비해 어느 방향으로 얼마나 움직였는지를 추정하는 이동벡터 추정부와, 입력되는 영상신호의 프레임의 화소를 이전 프레임의 화소와 비교하여 움직임이 있는지를 판단하는 움직임 검출부와, 입력 영상 신호와 추정된 물체의 움직임 정도에 따라 이전 프레임의 신호를 이동벡터만큼 시간축으로 보간을 하는 시간축 내삽필터를 구비하는 시간축내삽기에 있어서, 상기 시간축 내삽 필터는 하기 식에 의해 2차원 필터로 전환되어 구현되는 것을 특징으로 하는 시간축 내상기.A motion vector estimator for estimating how much the pixels of the frame of the input video signal move in the direction compared to the previous frame, and comparing the pixels of the frame of the input video signal with the pixels of the previous frame to determine whether there is motion In the time base interpolation filter having a motion detection unit and a time axis interpolation filter for interpolating a signal of a previous frame in the time axis according to the input image signal and the estimated degree of motion of the object, the time axis interpolation filter is expressed by the following equation. The time base internal memory, characterized in that implemented by switching to a dimensional filter. N NN N I(Z,t-r)=∑ ∑ hl(k1,k2｜D(Z,n-r))ㆍI(x+kl, y+k2, n-1)I (Z, t-r) = ∑ ∑ hl (k1, k2 | D (Z, n-r)) · I (x + kl, y + k2, n-1) k1=-N k2=-Nk1 = -N k2 = -N N NN N +∑ ∑ h2(k1,k2｜D(Z,n-r))ㆍI(x+kl, y+k2, n-1)+ ∑ ∑ h2 (k1, k2 | D (Z, n-r)) · I (x + kl, y + k2, n-1) k1=-N k2=-N .......(7)k1 = -N k2 = -N ....... (7) (여기서, I(Z,t-r)는 픽셀 그리드 값, r는 0<r<1, D(Z, n-r)는 n번째에서 (n-1)프레임으로 구한 이동 벡터중 (Z,n-r)위치를 통과하는 이동 벡터, 0<k1,k2<∞이다.)(Where I (Z, tr) is the pixel grid value, r is 0 <r <1, and D (Z, nr) is the (Z, nr) position of the motion vectors obtained from the nth to (n-1) frames. The moving vector through, 0 <k1, k2 <∞.) 제1항에 있어서, 상기 시간축 내삽필터는 D(Z,n-r)에 따라 필터 계수를 바꾸면서 필터링하는 것을 특징으로 하는 시간축 내삽기.The time axis interpolator according to claim 1, wherein the time axis interpolation filter filters while changing filter coefficients according to D (Z, n-r). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930017207A 1993-08-31 1993-08-31 Temporal interpolator Expired - Fee Related KR970008531B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930017207A KR970008531B1 (en) 1993-08-31 1993-08-31 Temporal interpolator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930017207A KR970008531B1 (en) 1993-08-31 1993-08-31 Temporal interpolator

Publications (2)

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KR950006628A true KR950006628A (en) 1995-03-21
KR970008531B1 KR970008531B1 (en) 1997-05-24

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KR1019930017207A Expired - Fee Related KR970008531B1 (en) 1993-08-31 1993-08-31 Temporal interpolator

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102393698B1 (en) * 2021-03-22 2022-05-06 (주)우진써보 Rotary solenoid with improved responsiveness and its performance measuring method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102393698B1 (en) * 2021-03-22 2022-05-06 (주)우진써보 Rotary solenoid with improved responsiveness and its performance measuring method

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KR970008531B1 (en) 1997-05-24

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