Dictionary Compression in Point Cloud Data Management

Hierarchical dictionary model and dictionary management policies for data compression

In this paper, an adaptive multi-dictionary model for data compression is proposed. Dictionary techniques applied in lossless compression coding can be modeled from the dictionary management point of view which is similar to that of cache memory. The behavior of a compression technique can be described by nine parameters defined in the proposed model, which provides a unified framework to descr...

On Dictionary-Symbolwise Data Compression

Octree-based Point-Cloud Compression

In this paper we present a progressive compression method for point sampled models that is specifically apt at dealing with densely sampled surface geometry. The compression is lossless and therefore is also suitable for storing the unfiltered, raw scan data. Our method is based on an octree decomposition of space. The point-cloud is encoded in terms of occupied octree-cells. To compress the oc...

Geometric 3D point cloud compression

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Massive point cloud data management: Design, implementation and execution of a point cloud benchmark

Point cloud data are important sources for 3D geo-information. An inventory of the point cloud data management user requirements has been compiled using structured interviews with users from different background: government, industry and academia. Based on these requirements a benchmark has been developed to compare various point cloud data management solutions with regard to functionality and ...