Differential velocity detection in the fovea was measured over a wide range of velocities (0.25-256 degrees/sec). Differential thresholds were minimum (about 6%) for intermediate velocities (4-32 degrees/sec). Velocity judgements were shown not to depend on duration judgments. The U-shaped curve relating differential velocity detection and velocity was preserved at different background levels a...

Corner detection is a fundamental step in image processing, and it takes an important role in target tracking, image stitching and three-dimension reconstruction. Harris algorithm is widely used in corner detection for simple calculation and its detection result is not affected by image rotation and light intensity changes. Harris algorithm uses integral differential mask to extract the image g...

Analogous to multiple-symbol differential detection of quadrature phase-shift keying (QPSK), a multiple-bit differential detection scheme is described for offset QPSK that also exhibits continuous improvement in performance with an increasing observation interval. Being derived from maximum-likelihood (ML) considerations, the proposed scheme is purported to be the most power-efficient scheme fo...

Objective: Detection and evaluation of adrenal glands are complex problems in conventional ultrasonography in dogs. Using three-dimensional (3D) ultrasonography (US) in adrenal gland volume evaluation can add new potential for further adrenal studies. Design: Descriptive study Animals: a total of 10 mix breed dogs Procedures: The dogs underwent two dimensional (2D) and 3D US of the adrenal g...

An equaliser algorithm has been developed for use with a differential detector operating in a time dispersive channel. Although differential detection allows the stringent requirements on frequency accuracy generally imposed on coherent receivers to be relaxed, its performance is more severely degraded by intersymbol interference. The algorithm, described in this paper, provides reliable perfor...

the genus entamoeba contains many species, six of which (entamoeba histolytica, entamoeba dispar, entamoeba moshkovskii, entamoeba polecki, entamoeba coli, and entamoeba hartmanni) reside in the human intestinal lumen. entamoeba histolytica is the causative agent of amebiasis in humans with a worldwide distribution. correct detection of e.histolytica is frequently a major concern in diagnostic ...

Most of video recording posses the redundant information which does not require to be recorded, actual information to be record is very less as compared to information present in normal video. A differential time-lapse technique allows us to remove the unnecessary data from the normal video, in order to save the time to visualization and storage space. Differential Time Lapse Video is non-perio...

The surface of the glassy carbon electrode (GCE) is modified with the composite of new Cobalt complex with a tetradentate Schiff base ligand derived from 3-ethoxysalicylaldehyde and 4,5-dimethyl orthophenylenediamine (CoOEtSal) and multi-walled carbon nanotube (MWCNT). The electrochemical oxidation of ascorbic acid (AA) and dopamine (DA) at the modified electrode was studied using the cyclic an...