KR0124580B1 - Moving estimation apparatus of auto-image stable system - Google Patents

Moving estimation apparatus of auto-image stable system

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Publication number
KR0124580B1
KR0124580B1 KR1019930030973A KR930030973A KR0124580B1 KR 0124580 B1 KR0124580 B1 KR 0124580B1 KR 1019930030973 A KR1019930030973 A KR 1019930030973A KR 930030973 A KR930030973 A KR 930030973A KR 0124580 B1 KR0124580 B1 KR 0124580B1
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KR
South Korea
Prior art keywords
matching
motion
filter
estimation apparatus
data output
Prior art date
Application number
KR1019930030973A
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Korean (ko)
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KR950022804A (en
Inventor
정한
Original Assignee
구자홍
엘지전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1019930030973A priority Critical patent/KR0124580B1/en
Publication of KR950022804A publication Critical patent/KR950022804A/en
Application granted granted Critical
Publication of KR0124580B1 publication Critical patent/KR0124580B1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20024—Filtering details

Abstract

A motion estimation device of automatic image stabilized system comprised a filter(2), a binary digit generating part(8), a matching pixel number calculating part(9), a maximum matching align part(10), a micom(10), a cross mask value memory(11) and an image memory(7) is disclosed. Thereby, it is possible to estimate the motion of automatic image stabilized system in camcoder.

Description

자동 영상안정화 시스템의 움직임 추정장치Motion Estimator of Automatic Image Stabilization System

제1도는 종래의 움직임 추정장치의 구성도.1 is a block diagram of a conventional motion estimation apparatus.

제2도는 본 발명에 의한 움직임 추정장치의 구성도2 is a block diagram of a motion estimation apparatus according to the present invention

제3도(a)(b)(c)는 각 구간의 크로스마스크와 움직임 성분관계도.3 (a) (b) (c) are cross-mask and motion component relation diagrams of respective sections.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 움직임 성분검출기2 : 필터1: motion component detector 2: filter

3 : 상관관계계산부4 : 최대 상관값 정렬부3: correlation calculation unit 4: maximum correlation value alignment unit

5 : 이전상관값 메모리6 : 마이컴5: previous correlation value memory 6: microcomputer

7 : 필드메모리8 : 2진값 생성부7: Field memory 8: Binary value generator

9 : 매칭 화소수 계산부10 : 최대 매칭정렬부9: matching pixel number calculation unit 10: maximum matching alignment unit

11 : 크로스 마스크값 저장부12 : 크로스마스크11: Cross mask value storage unit 12: Cross mask

13 : 탐색영역13: search area

본 발명은 캠코더(Camcoder)에 있어서, 자동 영상 안정화 시스템의 움직임 추정장치에 관한 것이다.The present invention relates to a motion estimation apparatus for an automatic image stabilization system in a camcorder.

제1도는 종래의 움직임 추정장치의 구성도이다.1 is a block diagram of a conventional motion estimation apparatus.

종래의 움직임 추정장치는 제1도에 도시한 바와 같이 화상간의 움직임을 검출하는 움직임 성분검출기(1), 전화면의 움직임 성분을 결정하기 위한 마이컴(6), 및 화상데이타를 저장하는 필드메모리(7)로 구성된다.The conventional motion estimation apparatus includes a motion component detector 1 for detecting motion between images, a microcomputer 6 for determining motion components of a full screen, and a field memory for storing image data as shown in FIG. 7) consists of.

상기 움직임 성분검출기(1)는 입력되는 영상 신호중 노이즈를 제거하는 필터(2), 현화면과 이전화면과의 대표점 휘도값의 차를 가산하는 상관관계계산부(3), 상관관계가 가장 높은 위치를 찾기위한 최대 상관값정렬부(4) 및 이전화면의 대표점을 저장하기 위한 이전 상관값 메모리(5)로 구성된다.The motion component detector 1 includes a filter 2 for removing noise in an input video signal, a correlation calculator 3 for adding a difference between a representative point luminance value between a current screen and a previous screen, and the highest correlation. It consists of a maximum correlation value sorter (4) for finding a position and a previous correlation value memory (5) for storing representative points of the previous screen.

종래의 움직임추정장치는 대표점 매칭(Matching) 기법에 의한 움직임 성분 검출을 하는데, 현재 화상과 이전화상의 상관관계계산으로 이루어진다. 즉, Conventional motion estimation apparatus detects motion components by representative point matching technique, which consists of calculating the correlation between the current image and the previous image. In other words,

t K K r r-1 f f t K K r r-1 f f

Claims (1)

입력되는 영상신호를 필터링하는 필터수단(2), 상기 필터수단(2)으로부터 출력되는 데이타를 여러개의 구간으로 나누고 각 구간에서의 크로스마스크값을 저장하는 크로스마스크값 저장수단(11), 상기 필터수단(2)으로부터 출력되는 데이타와 상기 크로스마스크값 저장수단(11)에 저장된 그이전의 크로스마스크값의 차를 2진값으로 변형하는 2진값 생성수단(8), 상기 2진값 생성수단(8)으로부터 출력되는 2진 데이타중 매칭 화소수를 카운트하는 매칭화소수계산수단(9), 상기 매칭화소수계산수단(9)으로부터 출력되는 매칭화수소중 최대로 많은 매칭수를 갖는 위치를 찾는 매칭정렬수단(10), 상기 최대 매칭정렬수단(10)으로부터 출력되는 신호를 이용하여 전체 화면의 움직임 성분을 출력하는 마이컴(6), 상기 입력되는 영상신호를 상기 마이컴(6)으로부터 출력되는 신호로 움직임 보상하여 출력하는 화상메모리(7)를 포함하여 구성되는 것을 특징으로 하는 움직임 추정장치.Filter means (2) for filtering the input video signal, cross mask value storage means (11) for dividing the data output from the filter means (2) into a plurality of sections and storing cross mask values in each section, the filter Binary value generating means (8) for converting the difference between the data output from the means (2) and the previous cross mask value stored in the crossmask value storing means (11) into a binary value, the binary value generating means (8) Matching pixel number calculating means (9) for counting the number of matching pixels in the binary data output from the matching pixel; (10), a microcomputer (6) for outputting a motion component of the entire screen by using the signal output from the maximum matching and sorting means (10), and outputs the input video signal from the microcomputer (6) A motion estimation device characterized in that comprises an image memory (7) for the motion compensation and outputs a signal.
KR1019930030973A 1993-12-29 1993-12-29 Moving estimation apparatus of auto-image stable system KR0124580B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930030973A KR0124580B1 (en) 1993-12-29 1993-12-29 Moving estimation apparatus of auto-image stable system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930030973A KR0124580B1 (en) 1993-12-29 1993-12-29 Moving estimation apparatus of auto-image stable system

Publications (2)

Publication Number Publication Date
KR950022804A KR950022804A (en) 1995-07-28
KR0124580B1 true KR0124580B1 (en) 1997-12-01

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KR950022804A (en) 1995-07-28

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