Magnetic resonance imaging (MRI) of the brain is a precious tool to facilitate physician’s diagnoses and care for a mixture of brain diseases including stroke, cancer, and epilepsy. It presents exact information to discover the diseases. Histogram equalization is one of the important steps in image enhancement technique for MRI. This paper compares different methods like Brightness Preserving B...

In time-division multiple-access (TDMA) systems, the autonomy of portable handsets is a major constraint. We propose a new method, conditional equalization, which minimizes the power consumption due to equalization by equalizing only when it is most needed. At each time slot, the receiver estimates the need for equalization with a deterministic criterion. The proposed criteria use thresholds, c...

In order to suppress inter-symbol interference (ISI), the Frequency domain decision feedback equalization (FD-DFE) algorithm is proposed in this paper for single carrier frequency domain equalization (SC-FDE) combined with Alamouti space time block coding (STBC) systems over frequency-selective channels. We use the cyclic prefix (CP) and two transmit antennas to achieve the significant diversit...

– Histogram equalization – Preserving the original brightness to avoid annoying artifacts ‹ Bright preserving Bi-Histogram Equalization – Not handling well to avoid annoying artifacts ‹ Recursive Mean-Separate Histogram Equalization – Separating each new histogram further based on respective mean Abstract 3 / 28 ‹ Histogram equalization – Base on the probability distribution of the input gray l...

A new combined equalization/synchronization technique, known as SC-PMC (self-convoluting partial mass center), for use in partial response systems is presented. The work is significant as the new technique utilizes a single tap delay line LMS (Least Mean Square) filter for performing the task of equalization and synchronization for the partial response transceiver. Conventional partial response...

Finite Impulse Response (FIR) filter model emulates the Inter Symbol Interference (ISI) in a wireless communication channel. An equalizer, typically an Infinite (IIR) filter, behaves as inverse to FIR remove effects of ISI. IIR filters are generally avoided due tractability issues, and with adaptive signal processing algorithm minimize error ISI, is deployed at receiver. However, observed quick...