Fast Automatic Trimap Generation And Optimization For Segmentation Refinement

摘要

In an exemplary embodiment, the present invention is an apparatus which includes at least one processor, and at least one memory including computer program code. The at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to perform obtaining an image for segmentation; forming a trimap of at least a portion of the image, the trimap comprising a three-region map having a definite foreground, a definite background, and an unknown region separating the foreground and the background, said unknown region initially having a preselected width; in a plurality of iterations, changing the width of the unknown region; for each of the plurality of iterations, determining a quality measure; and selecting the width for the unknown region having the best quality measure. The apparatus may also include at least one camera for obtaining the image for segmentation.