TY - GEN
T1 - Delaunay Triangles Model for image-based motion retargeting
AU - Lee, Dong Roon
AU - Jung, Soon Ki
PY - 2001
Y1 - 2001
N2 - We present an automatie system far retargeting a human body extracted from an image sequence into a new character in a still image. In contrast to analysing the articulated motion of its skeleton in the previous vision-based human body tracking and posture recognition system, we use direct 2-D image warping based on a silhouette. At first, we represent the performer's silhouette with the Delaunay Triangles Model (DTM) of which the boundary points are the critical points of the silhouette. We then use a set of affine transformations of Delaunay triangles far the human body motion, which is applied to a new character for the deformation of the subject's DTM. The final animation of the subject is texture mapped using backward Radial Basis Functions (RBFs). Although our algorithm presented in this paper is not applicable to the human body with self-occluded motion, it allows believable photo-realistic motion retargeting.
AB - We present an automatie system far retargeting a human body extracted from an image sequence into a new character in a still image. In contrast to analysing the articulated motion of its skeleton in the previous vision-based human body tracking and posture recognition system, we use direct 2-D image warping based on a silhouette. At first, we represent the performer's silhouette with the Delaunay Triangles Model (DTM) of which the boundary points are the critical points of the silhouette. We then use a set of affine transformations of Delaunay triangles far the human body motion, which is applied to a new character for the deformation of the subject's DTM. The final animation of the subject is texture mapped using backward Radial Basis Functions (RBFs). Although our algorithm presented in this paper is not applicable to the human body with self-occluded motion, it allows believable photo-realistic motion retargeting.
KW - Character animation and image-based modelling and rendering
KW - Delaunay triangulation
KW - Motion estimation
KW - Vision based motion captlire
UR - http://www.scopus.com/inward/record.url?scp=84904268278&partnerID=8YFLogxK
U2 - 10.1007/978-0-306-47002-8
DO - 10.1007/978-0-306-47002-8
M3 - Conference contribution
AN - SCOPUS:84904268278
SN - 9781475749304
T3 - IFIP Advances in Information and Communication Technology
SP - 158
EP - 168
BT - Deformable Avatars - IFlP TC5/WG5.10 DEFORM 2000 Workshop and AVATARS 2000 Workshop
PB - Springer New York LLC
T2 - IFlP TC5/WG5.10 Workshop on Deformable Avatars, DEFORM 2000 -Followed by AVATARS 2000
Y2 - 30 November 2000 through 1 December 2000
ER -