한국통신학회논문지 A : 통신이론 및 시스템, v.34, no.12, pp.1154-1166
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Project Code
09MR4100, Development of Next-Generation DTV Core Technology,
Jin Woong Kim
Abstract
본 논문에서는 다시점 동영상을 이용한 기저선(baseline)상의 고화질 가상시점 영상 생성과 기저선상 외의 가상시점 영상 생성을 위한 기법을 제안한다. 제안한 기법에서는 가상 시점을 생성하기 위하여 영상의 깊이(depth)정보와 카메라의 기하학적 특성을 이용한 3차원 워핑(warping) 방법을 적용한다. 영상의 실제 3차원 좌표는 영상의 깊이 정보와 카메라의 기하학적 특성을 이용하여 산출되고, 산출된 3차원 좌표는 임의 위치의 가상 카메라에 투영(projection)되어 2차원의 가상 시점 영상이 생성된다. 제안한 방법에 의해 생성된 기저선상의 중간시점 영상은 기존의 방법으로 생성된 중간시점 영상보다 PSNR이 0.5dB 이상 향상된 결과를 나타내었고, 기저선상 외의 가상시점 영상에서 나타나는 많은 미처리 영역을 보다 효과적으로 처리하여 고화질 가상시점 영상을 생성할 수 있었다.
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