This paper presents an efficient search algorithm for fast block matching motion estimation(ME) for video applications. The algorithm uses two patterns for initial search and refined local search. For initial search, the proposed algorithm uses a square pattern adaptively by selecting the step size based on Maximum Absolute Value of predicted motion vector. This search pattern is aimed to reduc...

In Digital video communication it is not practical, to store the full digital video without processing, because of the problems encountered in storage and transmission, so the processing technique called video compression is essential. In video compression, one of the computationally expensive and resource hungry key element is the Motion Estimation. The Motion estimation is a process which det...

Single crystals and polycrystalline diamond films of several thicknesses were deposited using oxygen/acetylene combustion flame technique. The substrate used was pure polycrystalline molybdenum subjected to mechanical polishing. Quality and microstructural characteristic of diamond produced were investigated using X-Ray diffraction, Raman Spectroscopy, Scanning and Transmission Electron Microsc...

Based on the study of motion vector distribution from several commonly used test image sequences, a new diamond search (DS) algorithm for fast block-matching motion estimation (BMME) is proposed in this paper. Simulation results demonstrate that the proposed DS algorithm greatly outperforms the well-known three-step search (TSS) algorithm. Compared with the new three-step search (NTSS) algorith...

INTRODUCTION: The appropriate-use optimization of the limited spaces of the Iranian hospitals is believed to be a crucial step towards promoting the efficiency of these healthcare centers. The issue determining the optimization patterns of the layout of units has led to a lot of efforts by researchers as it increases the efficiency of the hospitals through patients’ improvement, changing the lo...

In this paper we propose an efficient fast block-matching algorithm for motion estimation. Two different patterns, 3×3 and 5×5 cross patterns alternative in inner ring, and three search strategies, including prediction, threshold, and hierarchy, are utilized to form the procedure of the proposed algorithm. The simulation results show that number of search points required in the proposed algorit...

We investigate the increasing popularity of technologies such as Internet streaming video and video conferencing, video compression has became an essential component of broadcast and entertainment media. Here we make use of new motion estimation algorithm with a video coding standard MPEG-4, has achieved significant compression by utilizing several advanced techniques. Here we use three types o...

Video coding is a complex process, comprising a combination of spatial, temporal and statistical data reduction techniques. Of these techniques, motion estimation taking advantage of inter-frame information redundancy plays the most vital role. The overwhelming complexity of motion estimation using a brute-force search has prompted researchers to propose myriad of algorithms, yet finding the “m...

Introduction: Recent developments of radiotherapy techniques, require high accuracy detectors to determine the delivered dose in a small area. Chemical vapor deposition (CVD) or naturally growth diamond detectors which are commercially available are good candidates for this purpose. In these detectors two electrodes with high different electrical potential are deposited on both...

Fast motion estimation technique plays a very important part in video compression standard. In this paper, we propose a novel algorithm using octagon-based search (OCTBS) pattern for fast block motion estimation. The proposed OCTBS algorithm can find motion vector with fewer search points than the diamond search (DS) algorithm. The speedup gain of the OCTBS method over the DS algorithm is more ...