지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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This paper proposes a novel method to estimate multiple light source directions from a single image in Augmented Reality system. A square marker and a mirror sphere with known size are employed for geometric and photometric Registrations by detecting light sources. Light coming from front half side of the mirror ball can be detected by tracking highlight pixels in the captured sphere image and analyzed by using blob tracking algorithm and its initialization with a blob labeling method. Whereas when light is coming from back side of sphere is difficult to detect as highlight pixel will not be visible by camera. In this paper we propose a method to detect light coming from backside of the mirror using shadow detection technique. Using the length and shape of the shadow approximate direction of the light source can be calculated.
목차
Abstract
1. Introduction
2. Related work
3. Light Source Direction Estimation
4. Results
5. Conclusion
References
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