1. Supported by FCT grant PRAXIS XXI/BD/13875/97 Abstract This paper presents an original approach to the problem of function hiding based on Error Correcting Codes and evaluates the security of this approach. The novelty of the technique consists in using Error Correcting Codes to hide functions instead of encrypting data vectors. This protocol mainly deals with the issue of secure evaluation ...

The effect of the nucleon recoil for antikaon-deuteron scattering is investigated in the framework of effective field theory. In particular, we concentrate on the calculation of the nucleon recoil effect for the double-scattering process. It is shown that the leading correction to the static term that emerges at order ξ with ξ = MK/mN vanishes due to a complete cancellation of individually larg...

In order to enhance the contrast in the regions where the pixels have similar intensities, this paper presents a new histogram equalization scheme. Conventional global equalization schemes over-equalizes these regions so that too bright or dark pixels are resulted and local equalization schemes produce unexpected discontinuities at the boundaries of the blocks. The proposed algorithm segments t...

This work evaluated the behaviour of a Pilot Plant to receive and pre-treat septage collected transported by trucks from decentralized sewage treatment systems greasy residues grease traps. was installed at Brasília Sul Sewage Treatment composed grid, equalization tank, rotating screen, crusher Central Unit for separating settleable solids (SetS) floating solids, mainly oils greases (O&G). ...

In this paper, an advanced histogram-equalization algorithm for contrast enhancement is presented. Histogram equalization is the most popular algorithm for contrast enhancement due to its effectiveness and simplicity. It can be classified into two branches according to the transformation function used: global or local. Global histogram equalization is simple and fast, but its contrast-enhanceme...

Base class for Contrast Limited Adaptive Histogram Equalization. Equalizes the histogram of a grayscale image using Contrast Limited Adaptive Histogram. Hello all. I would like to implement an extension of the well-known CLAHE histogram equalization method in Matlab. Currently, Matlab provides routines. Adaptive Histogram Equalization. Contrast Limited Adaptive Histogram Equalization. Histogram...

This Contrast enhancement is frequently referred to as one of the most important issues in image processing. Histogram equalization (HE) is one of the common methods used for improving contrast in digital images. Histogram equalization (HE) has proved to be a simple and effective image contrast enhancement technique. However, the conventional histogram equalization methods usually result in exc...

5. Mixed Signal Clock Recovery 12 5.1 Hybrid (Digitally Assisted) Clock Recovery 12 5.2 Capability Comparisons 12 5.2.1 Jitter Tolerance 12 5.2.2 Flexibility and Versatility 13 5.2.3 Transition Density and Maximum Run Length (MRL) 14 5.2.4 Lock Time 14 6. End-to-End Equalization 15 6.1 Motivation 15 6.2 Equalization in a Nutshell 17 6.3 Types of Signal Conditioning 18 6.3.1 Transmit Pre-Emphasi...

In wireless communication systems, equalization process is needed to suppress the inter-symbol interference (ISI) caused by multipath channels. Conventional equalization techniques use training signals. Blind Methods are of great importance in the digital signal communication systems as they allow channel equalization at the receiver without the use fof training signals. A blind equalization in...

This paper proposes a new spatio-temporal equalization method, which simultaneously utilizes an adaptive antenna array and a decision feedback equalizer (DFE). For effective spatio-temporal equalization with less computational cost, how to split equalization functionality into spatial processing and temporal processing is quite important. One of the answers which we have given is ‘incoming sign...