Báo cáo hóa học: " Watermarking Algorithms for 3D NURBS Graphic Data" pot

... proposed two algorithms for the wa- termarking of 3D NURBS surface. One is suitable for the steganography, and the other for the watermarking. These algorithms extract 2D images from 3D NURBS model, ... Revised 10 June 2004 Two watermarking algorithms for 3D nonuniform rational B-spline (NURBS) graphic data are proposed: one is appropriate for the steganography,...

Ngày tải lên: 23/06/2014, 01:20

... method for nonexpansive mappings in Hilbert spaces. J. Math. Anal. Appl. 318, 43–52 (2006). doi:10.1016/j.jmaa.2005.05.028 11. Zhang, SS, Lee, JHW, Chan, CK: Algorithms of common solutions for quasi ... that 0 < l i <1 for every i = 1, 2, , and  ∞ i =1 λ i < ∞ . For every n Î N, let K n be the K-mapping generated by T 1 , T 2 , , T n and l 1 , l 2 , , l n . Then for ever...

Ngày tải lên: 21/06/2014, 01:20

... C  R d  M (ρ) f (x)  p w(x)dμ(x) (2.57) holds for every function f for which the left-hand side is finite. Proof. For w ∈ A ∞ (μ)andb ∈ RBMO(μ), by the estimate for the variant of the sharp maximal function, ... (x). Before proving the theorem, another equivalent norm for RBMO(μ) is needed. Sup- pose that for a given function b ∈ L 1 loc (μ) there exist some c 2 and a collection...

Ngày tải lên: 22/06/2014, 22:20

... different methods for converting from non-uniform to uniform sampling. The first and third al- gorithm are rather trivial modifications of the time and frequency-domain methods for uniformly sampled ... algorithm for different non- uniform sampling time pdf, Ta bl e 1 shows that p τ (t), in (16a), (16b), (16c), (16d), has a clear effect on the performance. (ii) Comparing the algorithms fo...

Ngày tải lên: 22/06/2014, 19:20

... reliability measure for the estimated motion. The idea of the utilization of motion estimation algorithms for collecting highly correlated 2D patches in a 3D volume and denoising in 3D transform domain ... appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Denoising Algorithm for the 3D Depth Map Sequences Based on Multihypot...

Ngày tải lên: 20/06/2014, 04:20

... step will be the use of the disparity information given by the stereo camera. This additional information will be useful for the computation of saliency. For example, this could help in the choice ... the order of spherical har- monics. For instance, zeroth order corresponds to mono and first order is the prevailing form in use in the past, de- noted as the B-format, which represents the...

Ngày tải lên: 22/06/2014, 19:20

... about how the choice of a filter bank affects a watermarking scheme’s performance. In [3], Fei et al. discuss the choice of a transform domain for watermarking, and in [4], Wolfgang et al. look ... different, more uniformly distributed coefficients and apply less significant changes. We thus expect filters with good properties for lossy compression to be potentially good choices for embeddi...

Ngày tải lên: 23/06/2014, 01:20

... several tabular algorithms for Tree Adjoining Grammar parsing, creating a continuum from simple pure bottom-up algorithms to complex pre- dictive algorithms and showing what transformations must ... development of parsing algorithms for TAG. An interesting project for the future will be to translate the algorithms presented here to sev- eral proposed automata models f...

Ngày tải lên: 22/02/2014, 03:20

... finding all for a given is . Therefore, the total cost is . For all non-empty , we create a new state and for all we set . We create a transition , and for all such that , we set . For all such ... recognition, information extraction, machine translation, or document classification. In all cases, a language model is used in combination with other in- formation sources to rank alternat...

Ngày tải lên: 08/03/2014, 04:22

... input candidate: for is the ’th tag in the tagged sequence. for is the ’th word. for is if begins with a lower- case letter, otherwise. for is a transformation of , where the transformation is applied ... parameters For If Then Else Output: Parameter vectors for Figure 3: The perceptron training algorithm for ranking problems. Define: . Input: A set of candidates for , A sequen...

Ngày tải lên: 17/03/2014, 08:20