KR970057956A

KR970057956A - Motion Estimator of Image Encoder

Info

Publication number: KR970057956A
Application number: KR1019950055648A
Authority: KR
Inventors: 박충수
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-12-23
Filing date: 1995-12-23
Publication date: 1997-07-31

Abstract

본 발명은 영상복원시, 지나치게 큰 압축비로 인하여 발생될 수 있는 블럭킹 인조잡상(Artifacts)을 감소시킬수 있는 영상기기의 움직임 추정장치에 관한 것으로, 이를 해결하기 위하여 다수개의 가변탐색블럭을 구비하고서 프레임간의 움직임을 예측하는 장치에 있어서, 움직임 추정을 위하여 저장되어 있던 이전 프레임을 복원하여 제공하는 프레임 메모리(300)와; 현재 프레임내에 포함되는 물체의 영역을 분할하며, 이로부터 얻어지는 현재 프레임과 이 현재 프레임의 영역정보를 제공하는 분할 처리부(320)와; 분할 처리부(320)의 영역정보에 의거하여 현재 프레임과 이전 프레임간의 움직임 정보를 예측하여 출력하는 가변블럭 움직임 예측부(340)를 구비함으로써 동일영역에 속하는 물체를 가능한 같은 움직임 벡터를 갖도록 함으로써 복호화된 영상에서 나타나는 블럭킹 인조잡상(Artifacts)을 감소시킬 수 있는 효과가 있다.The present invention relates to an apparatus for estimating motion of an imaging apparatus that can reduce blocking artifacts that may be generated due to an excessively large compression ratio when restoring an image. An apparatus for predicting motion, comprising: a frame memory (300) for restoring a previous frame stored for motion estimation; A division processor 320 for dividing an area of an object included in a current frame, and providing a current frame obtained from the current frame and area information of the current frame; The variable block motion predictor 340 predicts and outputs motion information between the current frame and the previous frame based on the region information of the splitter 320, thereby decoding the object belonging to the same region to have the same motion vector. There is an effect that can reduce the blocking artifacts appearing in the image.

Description

Motion Estimator of Image Encoder

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

제3도 본 발명에 따른 영상부호기의 움직임 추정장치도,3 is a motion estimation apparatus of an image encoder according to the present invention;

제4도 본 발명의 동작을 설명하기 위한 도면,4 is a view for explaining the operation of the present invention,

제5도 본 발명의 동작을 설명하기 위한 도면.5 is a view for explaining the operation of the present invention.

Claims

A motion estimator of an image encoder which includes a plurality of variable search blocks and predicts motion between a current frame and a previous frame using a block matching algorithm, comprising: a frame memory for restoring a previous frame stored for motion estimation; 300); A division processor 320 for dividing an area of an object included in the input current frame, and providing a current frame obtained from the current frame and area information of the current frame; And a variable block motion predictor (340) for predicting and outputting motion information between a current frame and a previous frame based on the region information of the division processor (320).

The apparatus of claim 1, wherein the motion information predicted by the variable block motion predictor (340) is a motion vector, a prediction error, and variable search size information between a current frame and a previous frame.

※ Note: The disclosure is based on the initial application.