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NTIS 바로가기방송공학회논문지 = Journal of broadcast engineering, v.25 no.5, 2020년, pp.672 - 684
조나단 사무엘 (인하대학교 정보통신공학과) , 백형선 (인하대학교 정보통신공학과) , 박인규 (인하대학교 정보통신공학과)
Restoring a low resolution and motion blurred light field has become essential due to the growing works on parallax-based image processing. These tasks are known as light-field enhancement process. Unfortunately, only a few state-of-the-art methods are introduced to solve the multiple problems joint...
핵심어 | 질문 | 논문에서 추출한 답변 |
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초해상도 기법이란 무엇인가? | 초해상도 기법은 저해상도 영상들의 보간된 픽셀들에 의해 발생한 블러된 영역을 복원하거나 새로운 고해상도의 위치에 픽셀들을 채우는 작업이다. 2차원 영상에 CNN을 활용한 초해상도의 최신기법은 훈련 중 빠르게 수렴이 가능하도록 한 Kim et al. | |
라이트필드 영상 향상을 올바르게 수행하기 위해서 중요한 것은 무엇인가? | 라이트필드 영상 향상을 올바르게 수행하기 위해서는 시차 정보를 취득하는 라이트필드의 도메인을 자세히 설명하는 것이 중요하다. 하나의 라이트필드 영상은 2차원 공간 영역 및 2차원 각 영역으로 분산된 픽셀들을 갖고 있다. | |
라이트필드의 각각의 다시점 영상은 무엇을 의미하는가? | 기존의 2차원 영상과는 다른 추가적인 각 영역은 시차와 관련된 다시점 영상들(subview images)을 생성한다. 라이트필드의 각각의 subview 영상은 Ng에 의해 기술 된 바와 같이 특정 각도 방향에 위치하는 2차원 영상를 의미하며[20], 대부분 라이트필드의 공간 및 각도영역의 좌표는 각각 (x, y) 및 (u, v)를 사용하여 나타낸다. 초기 연구에서는 단일 카메라 앞에서 작은 물체를 회전시킴으로써 여러 장면을 생성하여 라이트필드를 취득하였다[15]. |
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