As the number of pixels per frame tends to increase in new high definition video coding standards such as HEVC and VP9, pel decimation appears as a viable means of increasing the energy efficiency of Sum of Absolute Differences (SAD) calculation. First, we analyze the quality costs of pel decimation using a video coding software. Then we present and evaluate two VLSI architectures to compute th...

Multidimensional (MD) multirake systems, which find applications in the coding and compression of image and video data, have recently attracted much attention. The basic building blocks in an MD multirate system itre the decimation matrix M, the expansion matrix L, and MD digital filters. With D denoting the number of dimensions, M :and L are D X D nonsingular integer matrices. When these matri...

The cancellable biometric transformations are designed to be computationally difficult obtain the original data. This paper presents a multi-biometric identification scheme that includes four stages: data collection and processing, Arnold's Cat Map encryption, decimation process reduce size, final merging of biometrics in single generated template. First, 2D matrix size 128 × is created based o...

Decimation is a common process in digital signal processing that involves reducing the sampling rate of an oversampled by linearly combining consecutive samples. Among other applications, this represents simple means to mitigate noise content signal. In work, novel optical concept inspired these operations proposed, which called Parametric-assisted Oversampling and (POD). By using all-fiber set...

The constant center frequency to bandwidth ratio (Q-factor) of wavelet transforms provides a very natural representation for audio data. However, invertible have either required non-uniform decimation -- leading irregular data structures that are cumbersome work with or require excessively high oversampling unacceptable computational overhead. Here, we present novel strategy leads stable repres...

This paper studies the effective factors involving in the attitudes of make students toward vandalism at high –schools in 2012-2013. Theories which applied here are ratio communication of Sutherland, kellawarel and online. Merton anomie, Heir chi's social ties and Good's family structure Throuah Cochran's formula more than 376 ones were chosen. The data wave analyzed  by   SPSS and  the statist...