3차원 비디오 콘텐츠 제작 기술
Techniques for Creating 3D Video Contents
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초록
3차원 비디오 콘텐츠를 제작하고 이를 다양하게 응용하기 위해서는 3차원 비디오를 획득, 가공, 렌더링하는 기술 과 노하우가 필요하다. 본 논문에서는 3차원 비디오 획득 및 가공을 실제로 수행하는 과정에서의 여러 가지 고려사항 과 노하우를 설명한다. 카메라 배치(configuration)에 따라 크게 3가지(집중형, 발산형, 병렬형)로 세분화하고, 각각에 대해서 관련 기술을 설명한다. 그리고, 3차원 비디오 콘텐츠 제작 예로, 집중형 배치를 가지는 8대의 카메라로부터 다 시점 비디오를 실시간으로 획득, 저장하고, 중간시점 영상을 합성하는 시스템에 대해서 기술한다.
Abstract
This paper addresses the image-based modeling/rendering techniques to capture and process videos from multiple cameras for the creation of realistic 3D video contents. We classify the techniques into three categories (inward facing, outward facing, and parallel configuration) according to the configuration of multiple cameras and explain the detailed techniques of each category. Most of image-based modeling/rendering techniques in the literature assume that the reference images are given. In other words, we hardly find the know-how for capturing and saving multiple view videos from several cameras. Therefore, we explain the general considerations for capturing and saving multiple view videos from several cameras. Finally, as an example of the creation of 3D video contents, we introduce the system that in real-time capture, save multiple view videos from 8 downward(and inward) facing 1394 cameras located 360 degrees around an object and synthesize an intermediate view image using the videos.
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