Saliency detection for RGBD images

Abstract

Additional depth information from RGBD images is one of characteristics different from conventional 2D images. In this paper, we propose an effective saliency model to detect salient regions in RGBD images. Color contrast and depth contrast are first enhanced with the weighting of depth-based object probability. Then the region merging based saliency refinement is exploited to obtain the color saliency map and depth saliency map, respectively. Finally, a location prior of salient objects is integrated with color saliency and depth saliency to obtain the regional saliency map. Both subjective and objective evaluations on a public RGBD image dataset demonstrate that the proposed saliency model outperforms the state-of-the-art saliency models.