A very fast mesh simplification algorithm based on halfedge collapse is proposed in this work with a focus on progressive graphic transmission applications. We generalize the Quadric Error Metric (QEM) method to accommodate new topological operations. A flatness criterion is combined with the defined metric to preserve the visual quality of simplified meshes. We further adopt the vertex-based p...

This paper applies a matrix-analytic approach to analyze both the long-term and the short-term loss behaviors of a queue with space priority scheme. Five related performance measures are derived from conditional statistics, including the long-term highpriority and low-priority packet loss probabilities, and the three short-term measures — the average length of a critical period, the average len...