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The recent introduction of novel acquisition devices like the Leap Motion and the Kinect allows to obtain a very informative description of the hand pose that can be exploited for accurate gesture recognition. This paper proposes a novel hand gesture recognition scheme explicitly targeted to Leap Motion data. An ad-hoc feature set based on the positions and(More)
Depth data acquired by current low-cost real-time depth cameras provide a more informative description of the hand pose that can be exploited for gesture recognition purposes. Following this rationale, this paper introduces a novel hand gesture recognition scheme based on depth information. The hand is firstly extracted from the acquired data and divided(More)
—Scene segmentation is a well-known problem in computer vision traditionally tackled by exploiting only the color information from a single scene view. Recent hardware and software developments allow to estimate in real-time scene geometry and open the way for new scene segmentation approaches based on the fusion of both color and depth data. This paper(More)
Recent work on depth map compression has revealed the importance of incorporating a description of discontinuity boundary geometry into the compression scheme. We propose a novel compression strategy for depth maps that incorporates geometry information while achieving the goals of scalability and embedded representation. Our scheme involves two separate(More)
Current 3D video applications require the availability of high quality depth information. Depth information can be acquired real-time by stereo vision systems and ToF cameras. Both solutions present critical issues, that can be overcome by their combined use. In this paper, a heterogeneous acquisition system is considered, made of two high resolution(More)
This paper presents a novel strategy for the compression of depth maps. The proposed scheme starts with a segmenta-tion step which identifies and extracts edges and main objects , then it introduces an efficient compression strategy for the segmented regions' shape. In the subsequent step a novel algorithm is used to predict the surface shape from the(More)
We consider an interactive browsing environment, with greedy optimization of a current view, conditioned on the availability of previously transmitted information for other (possibly nearby) views, and subject to a transmission budget constraint. Texture information is available at a server in the form of scalably compressed images, corresponding to a(More)