3D Object Processing: Compression, Indexing and Watermarking

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.

高品質的3D物體的出現和持續演進，得益於3D掃描器和3D圖形渲染的最新進展。隨著品質的提高，數據文件的大小和複雜性也相應增加，因此需要先進的壓縮技術。為了有效存儲、搜索和重現已壓縮的物體，需要進行有效的索引。在通信、醫學和軍事等領域應用3D圖像還需要版權保護或數字水印來確保數據的安全傳輸。

本書由專家撰寫，及時地將3D物體的壓縮、檢索和數字水印技術這三個重要且相互補充的主題結合在一起。3D物體處理應用正在快速發展，本書解決了所面臨的挑戰和機遇，重點關注在網絡上安全傳輸、共享和搜索3D物體，包括：

- 常用的3D表示方案介紹，多邊形網格、基於表面的模型和體積模型的特點、優點和限制；
- 3D壓縮技術，減小3D數據的大小以減少傳輸時間和最小化失真的3D編碼和解碼方案；
- 面向3D模型搜索引擎構建的內在挑戰的最新解決方案，包括基於視圖、結構和完整3D的方法；
- 數字水印技術，確保知識產權保護和內容安全，同時不改變3D物體的視覺質量。

《3D物體處理：壓縮、索引和數字水印》是研究信號和圖像處理、計算機輔助設計、動畫和影像系統的研究生和研究人員的寶貴資源。對於希望擴展對3D視頻物體的知識，包括數據壓縮、索引、安全和版權信息的實踐工程師來說，本書也非常有用。