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The recent increasing demand for 3D digital contents has motivated us to develop techniques for watermarking 3D models so that we can hide copyright information behind them. However, existing methods rather focused on the robustness against possible attacks to destroy the embedded watermarks, and have not fully taken care of the associated influence on the visual quality of the target 3D models. In...
In this paper, we propose a 3D mesh simplification algorithm based on meaningful segmentation and progressive mesh. This method can successfully preserves appearance and closeness of the original mesh during the simplification process. The experiment results support the conclusion obviously.
Three-dimensional (3D) urban models, come with huge data size, mainly consisting of the details of geometry and texture of the objects, and simplification of both is often needed for efficient streaming, rendering and visualization. A large number of objects in 3D urban models are buildings and the image files representing their texture contain information of the walls, streets, doors, and windows...
This paper presents a segmentation and recognition method of 3D objects in automatic navigation. In the first part of this paper, a segmentation method based on nautical scene is proposed, which is composed of image preprocess, ROI detection, subarea process and object detection. In addition, an applied visual resolution calculation method is presented to control the simplification of original 3D...
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