Sciweavers

SIGGRAPH
2010
ACM

Motion-based video retargeting with optimized crop-and-warp

14 years 2 months ago
Motion-based video retargeting with optimized crop-and-warp
We introduce a video retargeting method that achieves high-quality resizing to arbitrary aspect ratios for complex videos containing diverse camera and dynamic motions. Previous content-aware retargeting methods mostly concentrated on spatial considerations, attempting to preserve the shape of salient objects in each frame by removing or distorting homogeneous background content. However, sacrificeable space is fundamentally limited in video, since object motion makes foreground and background regions correlated, causing waving and squeezing artifacts. We solve the retargeting problem by explicitly employing motion information and by distributing distortion in both spatial and temporal dimensions. We combine novel cropping and warping operators, where the cropping removes temporally-recurring contents and the warping utilizes available homogeneous regions to mask deformations while preserving motion. Variational optimization allows to find the best balance between the two operations...
Yu-Shuen Wang, Hui-Chih Lin, Olga Sorkine, Tong-Ye
Added 20 Aug 2010
Updated 20 Aug 2010
Type Conference
Year 2010
Where SIGGRAPH
Authors Yu-Shuen Wang, Hui-Chih Lin, Olga Sorkine, Tong-Yee Lee
Comments (0)