The arrival, and continuing evolution, of high quality 3D objects has been made possible by recent progress in 3D scanner acquisition and 3D graphics rendering. With this increasing quality comes a corresponding increase in the size and complexity of the data files and the necessity for advances in compression techniques. Effective indexing to facilitate the retrieval of the 3D data is then required to efficiently store, search and recapture the objects that have been compressed. The application of 3D images in fields such as communications, medicine and the military also calls for copyright protection, or watermarking, to secure the data for transmission. Written by expert contributors, this timely text brings together the three important and complementary topics of compression, retrieval and watermarking techniques for 3D objects. 3D object processing applications are developing rapidly and this book tackles the challenges and opportunities presented, focusing on the secure transmission, sharing and searching of 3D objects on networks, and includes: an introduction to the commonly used 3D representation schemes; the characteristics, advantages and limitations of polygonal meshes, surface based models and volumetric models; 3D compression techniques; the 3D coding and decoding schemes for reducing the size of 3D data to reduce transmission time and minimize distortion; state of the art responses to the intrinsic challenges of building a 3D-model search engine, considering view-based, structural and full-3D approaches; watermarking techniques for ensuring intellectual property protection and content security without altering the visual quality of the 3D object. 3D Object Processing: Compression, Indexing and Watermarking is an invaluable resource for graduate students and researchers working in signal and image processing, computer aided design, animation and imaging systems. Practising engineers who want to expand their knowledge of 3D video objects, including data compression, indexing, security, and copyrighting of information, will also find this book of great use.

The arrival, and continuing evolution, of high quality 3D objects has been made possible by recent progress in 3D scanner acquisition and 3D graphics rendering. With this increasing quality comes a corresponding increase in the size and complexity of the data files and the necessity for advances in compression techniques. Effective indexing to facilitate the retrieval of the 3D data is then required to efficiently store, search and recapture the objects that have been compressed. The application of 3D images in fields such as communications, medicine and the military also calls for copyright protection, or watermarking, to secure the data for transmission.Written by expert contributors, this timely text brings together the three important and complementary topics of compression, retrieval and watermarking techniques for 3D objects. 3D object processing applications are developing rapidly and this book tackles the challenges and opportunities presented, focusing on the secure transmission, sharing and searching of 3D objects on networks, and includes:* an introduction to the commonly used 3D representation schemes; the characteristics, advantages and limitations of polygonal meshes, surface based models and volumetric models;* 3D compression techniques; the 3D coding and decoding schemes for reducing the size of 3D data to reduce transmission time and minimize distortion;* state of the art responses to the intrinsic challenges of building a 3D-model search engine, considering view-based, structural and full-3D approaches;* watermarking techniques for ensuring intellectual property protection and content security without altering the visual quality of the 3D object.3D Object Processing: Compression, Indexing and Watermarking is an invaluable resource for graduate students and researchers working in signal and image processing, computer aided design, animation and imaging systems. Practising engineers who want to expand their knowledge of 3D video objects, including data compression, indexing, security, and copyrighting of information, will also find this book of great use.

About the Contributors viiIntroduction 11 Basic Background in 3D Object Processing 5Guillaume Lavoué1.1 3D Representation and Models 51.2 3D Data Source 281.3 3D Quality Concepts 341.4 Summary 39References 402 3D Compression 45Guillaume Lavoué, Florent Dupont, Atilla Baskurt2.1 Introduction 452.2 Basic Review of 2D Compression 462.3 Coding and Scalability Basis 482.4 Direct 3D Compression 512.5 Compression Based on Approximation 702.6 Normative Aspect: MPEG-4 762.7 Conclusion 772.8 Summary 782.9 Questions and Problems 79References 803 3D Indexing and Retrieval 87Stefano Berretti, Mohamed Daoudi, Alberto Del Bimbo, TarikFilali Ansary, Pietro Pala, Julien Tierny, Jean-PhillippeVandeborre3.1 Introduction 873.2 Statistical Shape Retrieval 963.3 Structural Approaches 1143.4 Transform-based Approaches: Spin Images 1203.5 View-based Approach 1233.6 Normative Aspect: MPEG-7 1333.7 Summary 134References 1354 3D Object Watermarking 139Jihane Bennour, Jean-Luc Dugelay, Emmanuel Garcia, NikosNikolaidis4.1 Introduction 1394.2 Basic Review of Watermarking 1404.3 Watermarking Principles Applied to 3D Objects 1444.4 A Guided Tour of 3D Watermarking Algorithms 1534.5 Concluding Remarks 1724.6 Summary 1754.7 Questions and Problems 176References 180Conclusion 185Index 191