KR970025170A

KR970025170A - 2D / Stereo Image Conversion Method and Apparatus

Info

Publication number: KR970025170A
Application number: KR1019950036857A
Authority: KR
Inventors: 김동국; 김만배; 조용덕
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1995-10-24
Filing date: 1995-10-24
Publication date: 1997-05-30
Also published as: KR100322727B1

Abstract

본 발명은 2차원/스테레오 영상변환방법 및 장치에 관한 것으로서, 입력되는 2차원/스테레오 영상을 프레임 단위로 저장하는 프레임 메모리; 현재 프레임의 영상과 N번째까지 지연된 프레임의 영상으로부터 움직임을 검출하여 배경영상과 움직이는 물체로 분할하여 움직임 검출부; 분할된 움직이는 물체의 움직임 양을 계산하는 움직임양 계산부; 계산된 움직임 양으로부터 움직임 속도 및 방향을 계산하는 움직임 속도＼방향 계산부; 계산된 움직임 속도와 추출된 카메라 파라메터로부터 움직이는 물체와 카메라 사이의 거리를 계산하는 카메라/물체 거리 계산부; 계산된 움직임 속도를 제1 및 제2 임계값을 이용하여 분류하는 움직임속도 분류부; 분류된 움직임속도 및 방향과 계산된 거리로부터 움직이는 물체의 영상을 합성하는 물체영상 합성부; 및 현재 프레임의 영상을 스테레오 영상의 한쪽 영상으로 설정하고, 합성된 움직이는 물체의 영상과 배경영상을 합성하여 스테레오 영상중 다른 쪽 영상으로 설정하는 스테레오 영상 생성부로 구성된다. 따라서, 자연스러울 뿐 아니라 입체감요소를 최대한 살린 스테레오 영상을 디스플레이하므로 사람들이 현장감을 느낄 수 있는 3차원 영상을 감상할 수 있다.The present invention relates to a 2D / stereo image conversion method and apparatus, comprising: a frame memory for storing an input 2D / stereo image on a frame basis; A motion detection unit for detecting a motion from an image of a current frame and an image of a frame delayed to the N-th, and dividing the motion into a background image and a moving object; A movement amount calculation unit calculating a movement amount of the divided moving object; A motion velocity ＼ direction calculation unit that calculates a movement speed and a direction from the calculated movement amount; A camera / object distance calculator for calculating a distance between the moving object and the camera from the calculated movement speed and the extracted camera parameters; A movement speed classification unit for classifying the calculated movement speed using the first and second threshold values; An object image synthesizing unit for synthesizing an image of a moving object from the classified movement speed and direction and a calculated distance; And a stereo image generation unit configured to set an image of the current frame as one image of the stereo image, and synthesize the image of the synthesized moving object and the background image to set the other image of the stereo image. Therefore, not only natural but also display stereo image utilizing the three-dimensional elements to the maximum, people can enjoy a three-dimensional image that can feel a sense of reality.

Description

2D / Stereo Image Conversion Method and Apparatus

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

제5도는 본 발명에 의한 2차원/스테레오 영상변환장치를 나타낸 블럭도,5 is a block diagram showing a two-dimensional / stereo image conversion apparatus according to the present invention;

제6도는 본 발명에 의한 2차원/스테레오 영상변환방법을 설명하기 위한 과정도.6 is a process chart for explaining a two-dimensional / stereo image conversion method according to the present invention.

Claims

Setting an image of a current frame among the input 2D images as one of stereo images; Detecting a motion from the image of the current frame and the image of the frame delayed to the Nth and dividing the motion image into a background image and a moving object; Calculating a movement amount and a speed of movement of the divided moving object; Obtaining a distance between the moving object and the camera from the movement speed and the extracted camera parameters; Synthesizing an image of a moving object from the movement speed, direction, and distance; And synthesizing the synthesized moving object image and the background image to the other image of the stereo image.

A frame memory for storing an input two-dimensional image in frame units; A motion detector for detecting a motion from an image of a current frame and an image of a frame delayed to the Nth of the two-dimensional images and dividing the motion image into a background image and a moving object; A motion amount calculator for calculating a motion amount of the moving object divided by the motion detector; A movement speed / direction calculator for calculating a movement speed and a direction from the movement amount calculated by the movement amount calculator; A camera / object distance calculator for calculating a distance between a moving object and a camera from the movement speed calculated by the movement speed / direction calculator and the extracted camera parameters; A motion speed classification unit for classifying the motion speed calculated by the motion: speed / direction calculation unit using first and second threshold values; An object image synthesizing unit for synthesizing an image of a moving object from a motion speed and a direction classified by the motion velocity classifying unit and a distance calculated by the camera / object distance calculating unit; And a stereo image generation unit configured to set the image of the current frame as one image of the stereo image, and synthesize the image of the synthesized moving object and the background image to set the other image of the stereo image. 2D / Stereo Video Converter.

3. The object image synthesizing apparatus of claim 2, wherein the object image synthesizing unit generates a synthesized object image by dividing an object in a frame having a low delay when the moving speed is greater than the second threshold, and the moving speed is smaller than the first threshold. In this case, a synthesized object image is generated by dividing an object in a frame having a large delay, and when a moving speed is between the first threshold value, an image of an object having motion according to a distance and a direction of movement between the camera and the object. 2D / stereo image conversion device, characterized in that for generating a synthesized object image.