H. Chiyama

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This paper introduces new watermarking schemes for 3D polygon models. The schemes presented here use just the redundancy in model description, hence essential model data such as vertex coordinates and topology are left intact. Proposed Full Permutation Scheme (FPS) and Partial Permutation Scheme (PPS) embed information by permuting the order of vertices or(More)
A wide variety ofsofiware tools are available to s~ipport decision making in the management of ,forest eco.systems. These tools include rfatabase.~, growth and yield models, wildlife models, .silvicultz~ral expert .systems, ,financial models, geogi.aphica1 information systems, and visualization tools. Typically, each of these tools has its own complex(More)
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