Efficient 3D shape matching and retrieval using a concrete radialized spherical projection representation

详细信息    查看全文

• 作者：Panagiotis Papadakis ; Ioannis Pratikakis ; Stavros Perantonis ; Theoharis Theoharis
• 关键词：3D shape retrieval ; Spherical harmonics ; Descriptor's invariance
• 刊名：Pattern Recognition
• 出版年：2007
• 出版时间：September 2007
• 年：2007
• 卷：40
• 期：9
• 页码：2437-2452
• 全文大小：1487 K

文摘

We present a 3D shape retrieval methodology based on the theory of spherical harmonics. Using properties of spherical harmonics, scaling and axial flipping invariance is achieved. Rotation normalization is performed by employing the continuous principal component analysis along with a novel approach which applies PCA on the face normals of the model. The 3D model is decomposed into a set of spherical functions which represents not only the intersections of the corresponding surface with rays emanating from the origin but also points in the direction of each ray which are closer to the origin than the furthest intersection point. The superior performance of the proposed methodology is demonstrated through a comparison against state-of-the-art approaches on standard databases.