서지주요정보
복셀 칼라링을 위한 통계적 실루엣 검지 = Statistical silhouette detection for voxel coloring
서명 / 저자 복셀 칼라링을 위한 통계적 실루엣 검지 = Statistical silhouette detection for voxel coloring / 황영배.
저자명 황영배 ; Hwang, Young-Bae
발행사항 [대전 : 한국과학기술원, 2003].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8014187

소장위치/청구기호

학술문화관(문화관) 보존서고

MEE 03102

SMS전송

도서상태

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반납예정일

초록정보

Voxel coloring needs accurate silhouette information of foreground objects for the reliable 3-D scene reconstruction of the objects. This thesis proposes a new method to optimally detect the foreground objects through a statistical model of the color difference between two scenes with and without the foreground objects, respectively. This thesis shows that image noise always does not satisfy the conventional zero-mean Gaussian assumption. Therefore, we propose a new noise model of each color channel for precisely estimating the statistics of background Euclidean color distances. Consequently, we can find the optimal threshold to classify the foreground objects from the background. Even though we use the optimal threshold, there can be inevitable false classifications. To reject these erroneous cases, we adopt the Graph Cuts that efficiently minimizes the global energy. However, there still exists the opportunity of false classification when the brightness change in the shadow region is increased. To resolve this problem we use the property of the shadow region that the chromaticity remains constant while the brightness changes in shadow region. We analyze our proposed methodology through various experiments and have shown the feasibility of reliable extraction of silhouettes and shadow. Consequently, we can reconstruct the 3D shape more accurately than by the conventional thresholding-based method.

서지기타정보

서지기타정보
청구기호 {MEE 03102
형태사항 viii, 86 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : 유클리드 거리(Euclidean distance)의 확률적 분포
저자명의 영문표기 : Young-Bae Hwang
지도교수의 한글표기 : 권인소
지도교수의 영문표기 : In-So Kweon
학위논문 학위논문(석사) - 한국과학기술원 : 전기및전자공학전공,
서지주기 참고문헌 : p. 81-82
주제 실루엣 검지
복셀 칼라링
Silhouette Detection
Voxel Coloring
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