In this work, we present a novel way of computing the continuous Haar, Fourier and cosine series coefficients of rectilinear polygons. We derive algorithms to compute the inner products with the continuous basis functions directly from the vertices of the polygons. We show that the overall computational complexity of those algorithms is lower than that of the traditional corresponding discrete ...

Two Pulse Shape Discrimination (PSD) techniques are proposed based on Cross Correlation (CC) and Principal Component Analysis (PCA). In CC-based PSD, two schemes are proposed to discriminate between different decay scintillation pulses. The first CC-based scheme is applied to digitized scintillation pulses in time-domain with different numbers of samples ranging from the last two samples up to ...

The Hilbert transform (HT) and associated Gabor analytic signal (GAS) representation are wellknown and widely used mathematical formulations for modeling and analysis of signals in various applications. In this study, like the HT, to obtain quadrature component of a signal, we propose the novel discrete Fourier cosine quadrature transforms (FCQTs) and discrete Fourier sine quadrature transforms...

In this paper a general framework for N-point, where N=2 with d ∈ Z and d > 0, orthonormal block transforms that map integers to integers using the lifting scheme is presented. The design of the Discrete Cosine Transform (DCT) that maps integers to integers (I2I-DCT), the Discrete Sine Transform that maps integers to integers (I2I-DST) and the Walsh Hadamard Transform that maps integer to integ...

High Efficiency Video Coding (HEVC) inverse transform for residual coding uses 2-D 4x4 to 32x32 transforms with higher precision as compared to H.264/AVC’s 4x4 and 8x8 transforms resulting in an increased hardware complexity. In this paper, an energy and areaefficient VLSI architecture of an HEVC-compliant inverse transform and dequantization engine is presented. We implement a pipelining schem...

Transforms M.Mani Roja , Dr.Sudhir Sawarkar , # Research scholar, Amravati University Associate Professor, TSEC, Mumbai, India. 1 [email protected] * Principal, DMCE Navi Mumbai, India 2 [email protected] Abstract— Iris Recognition is a biometric recognition technique in which features of the iris are used to uniquely identify individuals. Iris recognition has over the years emerged as...

The performance of several decorrelating transforms is evaluated in the JPEG-2000 baseline system. The transforms considered are based on uniform parallel 2-channel and 8-channel lter banks and discrete cosine transform (DCT) building blocks. Through the analysis of lossy compression results, a system employing a combination of 8-channel and 2-channel lter banks is found to perform best overall...

High Efficiency Video Coding (HEVC) inverse transform for residual coding uses 2-D 4x4 to 32x32 transforms with higher precision as compared to H.264/AVC’s 4x4 and 8x8 transforms resulting in an increased hardware complexity. In this paper, an energy and area-efficient VLSI architecture of an HEVC-compliant inverse transform and dequantization engine is presented. We implement a pipelining sche...

Digital image compression with multiresolution singular value decomposition is compared with discrete cosine transform, discrete 9/7 biorthogonal wavelet transform, Karhunen–Loève transform, and combinations thereof. The coding methods used SPIHT and run-length with Huffmann coding. The performances of these methods differ little from each other. Generally, the 9/7 biorthogonal wavelet transfor...