Download 3D Object Processing: Compression, Indexing and by Jean-Luc Dugelay, Atilla Baskurt, Mohamed Daoudi PDF
By Jean-Luc Dugelay, Atilla Baskurt, Mohamed Daoudi
The coming, and carrying on with evolution, of top of the range 3D gadgets has been made attainable through contemporary development in 3D scanner acquisition and 3D pictures rendering. With this expanding caliber comes a corresponding raise within the dimension and complexity of the information documents and the need for advances in compression thoughts. potent indexing to facilitate the retrieval of the 3D facts is then required to successfully shop, seek and recapture the gadgets which were compressed. the appliance of 3D photos in fields resembling communications, medication and the army additionally demands copyright safeguard, or watermarking, to safe the information for transmission.
Written via specialist members, this well timed textual content brings jointly the 3 very important and complementary issues of compression, retrieval and watermarking options for 3D objects. 3D item processing purposes are constructing quickly and this ebook tackles the demanding situations and possibilities awarded, concentrating on the safe transmission, sharing and looking of 3D items on networks, and includes:
- an advent to the widely used 3D illustration schemes; the features, merits and boundaries of polygonal meshes, floor established versions and volumetric models;
- 3D compression concepts; the 3D coding and deciphering schemes for lowering the dimensions of 3D information 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 thoughts for making sure highbrow estate safety and content material safety with out changing the visible caliber of the 3D object.
3D item Processing: Compression, Indexing and Watermarking is a useful source for graduate scholars and researchers operating in sign and snapshot processing, computing device aided layout, animation and imaging platforms. practicing engineers who are looking to extend their wisdom of 3D video gadgets, together with facts compression, indexing, safety, and copyrighting of data, also will locate this publication of significant use.
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Extra resources for 3D Object Processing: Compression, Indexing and Watermarking
2005) presented two other metrics to benchmark watermarking schemes, one based on a measure of distortion between several 2D views, and the other based on the distortion of energy calculated using 2D parameterization of the meshes. Finally Lavou´e et al. (2006) introduced a structural distortion measure which reflects the visual similarity between two meshes in a general-purpose context: the MSDM (3D Mesh Structural Distortion Measure). 3 A Perceptual Measure Example The MSDM, from Lavou´e et al.
A typical example is the work of Marziliano et al. (2004) which aims at detecting and quantifying blocking and ringing artifacts of JPEG compression. Recently, Wang et al. (2004) introduced an alternative framework for image quality assessment which does not rely on a summation of kinds of perceptual errors, but on the degradation of the structural information. 2 Existing 3D Perceptual Metrics Transposing complex computational metrics from 2D images to 3D objects is quite difficult, and to the best of our knowledge was only investigated by Ferwerda et al.
2005) proposed a new metric based on global roughness variation, to measure the perceptual quality of a watermarked mesh. They define the roughness as the variance of the difference between a 3D model and its smoothed version, similar to the geometric Laplacian of Karni and Gotsman (2000). Corsini et al. (2005) presented a similar roughness-based measure. Rondao-Alface et al. (2005) presented two other metrics to benchmark watermarking schemes, one based on a measure of distortion between several 2D views, and the other based on the distortion of energy calculated using 2D parameterization of the meshes.