| 摘要 |
The method comprises: generating a set of cost functions for foreground, background and shadow segmentation classes or models, where the background and shadow segmentation costs are based on chromatic distortion and brightness and colour distortion; and applying to the pixels of an image said set of generated cost functions; The method further comprises, in addition to a local modelling of foreground, background and shadow classes carried out by said cost functions, exploiting the spatial structure of content of at least said image in a local as well as more global manner; this is done such that local spatial structure is exploited by estimating pixels' costs as an average over homogeneous colour regions, and global spatial structure is exploited by the use of a regularization optimization algorithm. The system is adapted to implement at least part of the method. |
