A fast block matching algorithm in the feature domain was proposed by Fok and Au with a computation reduction factor of N/2 for a search block size of N×N. Although the algorithm can achieve close-to-optimal result, it requires a large amount of memory to store the features. This paper presents three improved fast block matching algorithms in the integral projections feature domain which can al...

Digital photogrammetry is a widespread surveying technique in different fields of application due to its flexibility, versatility and cost-effectiveness. Despite increasing automation simplicity, proper image block design crucial ensure high standards performance accuracy. Studies on camera network have been largely dealt with the scientific literature reference orientation process, while they ...

This paper proposes two novel schemes of wideband compressive spectrum sensing (CSS) via block orthogonal matching pursuit (BOMP) algorithm, for achieving high accuracy in real time. These aim to reliably recover the by adaptively adjusting number required measurements without inducing unnecessary sampling redundancy. To this end, minimum successful recovery is first derived terms its probabili...

background: the aim of the present study was to evaluate how left ventricular twist and torsion are associated with sex between sex groups of the same age. materials and methods : twenty one healthy subjects were scanned in left ventricle basal and apical short axis views to run the block matching algorithm; instantaneous changes in the base and apex rotation angels were estimated by this algor...