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3D Object Processing: Compression, Indexing and Watermarking by Jean-Luc Dugelay, Atilla Baskurt, Mohamed Daoudi

By Jean-Luc Dugelay, Atilla Baskurt, Mohamed Daoudi

The arriving, and carrying on with evolution, of top of the range 3D gadgets has been made attainable by means of fresh growth in 3D scanner acquisition and 3D pictures rendering.    With this expanding caliber comes a corresponding bring up within the measurement and complexity of the knowledge records and the need for advances in compression ideas. powerful indexing to facilitate the retrieval of the 3D information is then required to successfully shop, seek and recapture the items which have been compressed. the appliance of 3D photographs in fields reminiscent of communications, drugs and the army additionally demands copyright safeguard, or watermarking, to safe the knowledge for transmission.

Written by way of specialist individuals, this well timed textual content brings jointly the 3 very important and complementary subject matters of compression, retrieval and watermarking suggestions for 3D objects.  3D item processing functions are constructing swiftly and this booklet tackles the demanding situations and possibilities offered, concentrating on the safe transmission, sharing and looking of 3D gadgets on networks, and includes: 

  • an advent to the generally used 3D illustration schemes; the features, benefits and barriers of polygonal meshes, floor dependent types and volumetric models; 
  • 3D compression suggestions; the 3D coding and interpreting schemes for decreasing the dimensions of 3D info to minimize transmission time and reduce distortion; 
  • state of the paintings responses to the intrinsic demanding situations of creating a 3D-model seek engine, contemplating view-based, structural and full-3D approaches; 
  • watermarking innovations for   making sure highbrow estate defense and content material safety with no changing the visible caliber of the 3D item.

3D item Processing: Compression, Indexing and Watermarking is a useful source for graduate scholars and researchers operating in sign and picture processing, computing device aided layout, animation and imaging structures. working towards engineers who are looking to extend their wisdom of 3D video gadgets, together with information compression, indexing, defense, and copyrighting of data, also will locate this booklet of significant use. content material:
Chapter 1 easy history in 3D item Processing (pages 5–43): Guillaume Lavoue
Chapter 2 3D Compression (pages 45–86): Guillaume Lavoue, Florent Dupont and Professor Atilla Baskurt
Chapter three 3D Indexing and Retrieval (pages 87–138): Stefano Berretti, Mohamed Daoudi, Alberto Del Bimbo, Tarik Filali Ansary, Pietro Pala, Julien Tierny and Jean?Phillippe Vandeborre
Chapter four 3D item Watermarking (pages 139–183): Jihane Bennour, Professor Jean?Luc Dugelay, Emmanuel Garcia and Dr Nikos Nikolaidis

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Additional info for 3D Object Processing: Compression, Indexing and Watermarking

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Vector quantization, applied to blocks of neighboring vertices or coefficients. The quantization is the step which introduces the loss of information into the compression scheme. Coding of the quantized values The values obtained from the quantization process are represented by a binary code of fixed length (N bits per symbol). The coding stage allows us to reduce the average number of bits allocated to each quantized value. The coding techniques are based on the information theory presented in the next section for 3D objects.

They can be separated into three main categories: • Simplification: These algorithms aim to transform the input mesh into a new mesh containing less faces, vertices and edges, but representing the same shape. This is not compression in the strict sense of the word, but rather data reduction. • Single rate compression: The objective is to suppress the redundancy of the original data. In this class of algorithm, the whole 3D mesh is decoded and reconstructed at the end of the transmission. • Progressive compression: During the decoding, the 3D mesh is reconstructed incrementally, providing access to intermediate states of the object.

143–152. Flin F, Brzoska JB, Lesaffre B, Col´eou C, Lamboley P, Coeurjolly D, Teytaud O, Vignoles G and Delesse JF 2005 An adaptive filtering method to evaluate normal vectors and surface areas of 3D objects. Application to snow images from X-ray tomography. IEEE Transactions on Image Processing 14(5), 585–596. Fougerolle Y, Gribok A, Foufou S, Truchetet F and Abidi M 2005 Boolean operations with implicit and parametric representation of primitives using R-functions. IEEE Transactions on Visualization and Computer Graphics 11(5), 529–539.

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