TY - GEN
T1 - Automatic camera placement for image-based modeling
AU - Fleishman, Shachar
AU - Cohen-Or, Daniel
AU - Lischinski, Dani
N1 - Publisher Copyright:
© 1999 IEEE.
PY - 1999
Y1 - 1999
N2 - We present an automatic camera placement method for generating image-based models from scenes with known geometry. Our method first approximately determines the set of surfaces visible from a given viewing area and then selects a small set of appropriate camera positions to sample the scene from. We define a quality measure for a surface as seen, or covered, from the given viewing area. Along with each camera position, we store the set of surfaces which are best covered by this camera. Next, one reference view is generated from each reference view that do not belong to the selected set of polygons are masked out. The image-based model generated by our method, covers every visible surface only once, associating it with a camera position from which it is covered with quality that exceeds a user-specified quality threshold. The result is a compact non-redundant image-based model with controlled quality. The problem of covering every visible surface with a minimum number of cameras (guards) can be regarded as an extension to the well-known Art Gallery Problem. However, since the 3D polygonal model is textured, the camera-polygon visibility relation is not binary; instead, it has a weight-the quality of the polygon's coverage.
AB - We present an automatic camera placement method for generating image-based models from scenes with known geometry. Our method first approximately determines the set of surfaces visible from a given viewing area and then selects a small set of appropriate camera positions to sample the scene from. We define a quality measure for a surface as seen, or covered, from the given viewing area. Along with each camera position, we store the set of surfaces which are best covered by this camera. Next, one reference view is generated from each reference view that do not belong to the selected set of polygons are masked out. The image-based model generated by our method, covers every visible surface only once, associating it with a camera position from which it is covered with quality that exceeds a user-specified quality threshold. The result is a compact non-redundant image-based model with controlled quality. The problem of covering every visible surface with a minimum number of cameras (guards) can be regarded as an extension to the well-known Art Gallery Problem. However, since the 3D polygonal model is textured, the camera-polygon visibility relation is not binary; instead, it has a weight-the quality of the polygon's coverage.
UR - http://www.scopus.com/inward/record.url?scp=33751114568&partnerID=8YFLogxK
U2 - 10.1109/PCCGA.1999.803344
DO - 10.1109/PCCGA.1999.803344
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AN - SCOPUS:33751114568
SN - 0769502938
SN - 9780769502939
T3 - Proceedings - 7th Pacific Conference on Computer Graphics and Applications, Pacific Graphics 1999
SP - 12
EP - 20
BT - Proceedings - 7th Pacific Conference on Computer Graphics and Applications, Pacific Graphics 1999
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th Pacific Conference on Computer Graphics and Applications, Pacific Graphics 1999
Y2 - 5 October 1999 through 7 October 1999
ER -