Search and retrieval and digital watermarking targeting shapes of 3D models

We have achieved the following results regarding the Shape similarity retrieval of 3D models and Digital watermarking of 3D models.Shape based retrieval ：·Shape similarity比较方法（1）Envelopes of rotational moments， etc. of aligned 3D models。（一份参考Int'l Conf.2002文件和一份期刊文件）（2）模型的距离和角度的2D histogram of a point-set version。（一份参考的Int'l Conference，TPCG 2003和一份国际期刊文件）（3）多视图图像比较方法来进行形状比较。（一个被引用的Int'l Conference，ACM MIR 2003）多分辨率方法来实现形状相似性比较。（参考的国际会议文件PG，2003）3D模型检索接口使用相关反馈基于统计学习方法。（一次经参考的家庭会议和一份期刊论文）A3 D模型基于自动分类检索接口（已提交）。多分辨率组合，异构形状比较方法，用于改进的3D模型检索（已提交）。为有效形状模型检索减少特征矢量尺寸（已提交）数字水印：一种频率域方法，用于水印三维网格模型。（参考的国内会议、参考的国际会议和国际期刊文件）。点集三维模型的频率域水印方法。（2004年被引用的Int'l Conference CW）

We have achieved the following results regarding the Shape similarity retrieval of 3D models and digital watermarking of 3D models.Shape based retrieval :・Shape similarity comparison methods(1)Envelopes of rotational moments, etc. of aligned 3D models. (A referred Int'l Conf. paper PG2002 and a journal paper.)(2)2D histogram of distance and angle of a point-set version of the model. (A refereed int'l conf. paper TPCG 2003 and an international journal paper.)(3)Multiple view image comparison approach to shape comparison. (A refereed int'l conf. paper ACM MIR 2003.)・Multiresolution approach to shape similarity comparison. (A refereed international conference paper PG2003.)・3D model retrieval interface using relevance feedback based on a statistical learning method. (A refereed domestic conference and a journal paper.)・A 3D model retrieval interface based on automatic classification (submitted).・Combination of multiresolution, heterogeneous shape comparison methods for improved 3D model retrieval (submitted.)・Reduction of feature vector dimension for efficient shape model retrieval (submitted.)Digital watermarking :・A frequency domain approach to watermarking 3D mesh models. (Refereed domestic conferences, a refereed int'l conference, and an international journal paper.)・A frequency domain watermarking method for point set 3D models. (A refereed int'l conference CW2004.)