Combining the Syndrome-Trellis Codes (STC) proposed recently, a new steganography method for JPEG images is presented in this paper. The method improves embedding efficiency by using the STC, and then preserves the DCT coefficient histogram statistic feature by constraining the proportion that are used for information embedding among the coefficients with the absolute value equal to one. Experi...

In this paper, polymer-based nanocomposites powder were applied on the surface of plain carbon steel by electrostatic device and then were cured by microwave. The effect of adding nanoparticles on the corrosion resistance properties of the coatings was investigated by Electrochemical Impedance Spectroscopy and immersion test in 3.5 NaCl solution. Coatings structure and morphology of nanoparticl...

Transfer entropy from non-uniform embedding is a popular tool for the inference of causal relationships among dynamical subsystems. In this study we present an approach that makes use of low-dimensional conditional mutual information quantities to decompose the original high-dimensional conditional mutual information in the searching procedure of non-uniform embedding for significant variables ...

Recent results on the information theory of steganography suggest, and under some conditions prove, that the detectability of payload is proportional to the square of the number of changes caused by the embedding. Assuming that result in general, this paper examines the implications for an embedder when a payload is to be spread amongst multiple cover objects. A number of variants are considere...

Existing data embedding algorithms for polygonal meshes and their attributes can’t be applied to the majority of (geometric) computer aided design (CAD) applications, for two major reasons. First, these CAD systems employ parametric curves and surfaces, not polygonal meshes, as their main shape-defining primitives. Second, most CAD applications do not tolerate modifications of model topology an...

Recurrence quantification analysis (RQA) can extract the dynamics of postural control from center of pressure (CoP) data by quantifying the system's repeatability, complexity, and local dynamic stability through several variables. Computation of these variables requires the selection of suitable embedding parameters for state space reconstruction (i.e. time delay and embedding dimension); howev...

In this paper, we study the completion of fuzzy quasi-uniform spaces from a categorical point view. Firstly, introduce concept prorelations and describe as enriched categories. Then construct Yoneda embedding in through promodules, prove validness Lemma for right adjoint promodules. Finally, Cauchy by embedding. We show that inclusion functor category T0 separated complete to quasiuniform has l...

We present a new proof of Banaschewski's theorem stating that the completion lift of a uniform surjection is a surjection. The new procedure allows to extend the fact (and, similarly, the related theorem on closed uniform sublocales of complete uniform frames) to quasi-uniformities ("not necessarily symmetric uniformities"). Further, we show how a (regular) Cauchy point on a closed uniform subl...

In this paper we propose a robust watermarking algorithm for 3D mesh. The algorithm is based on spherical wavelet transform. Our basic idea is to decompose the original mesh into a series of details at different scales by using spherical wavelet transform; the watermark is then embedded into the different levels of details. The embedding process includes: global sphere parameterization, spheric...

Let G and G be simple Lie groups of equal real rank and real rank at least 2. Let Γ < G and Λ < G be non-uniform lattices. We prove a theorem that often implies that any quasi-isometric embedding of Γ into Λ is at bounded distance from a homomorphism. For example, any quasiisometric embedding of SL(n,Z) into SL(n,Z[i]) is at bounded distance from a homomorphism. We also include a discussion of ...