Human walking involves coordinated movement between lower limbs. Locomotion is a neuromuscular activity and hence it is affected by mental tasks. Many studies on gait parameter e.g. stride length, gait speed, cadence and percentage of gait cycle in a double limb stance has been performed to determine the effect of a mental task on locomotive task. The knee being an important joint for locomotiv...

Abstract Risk management is an important aspect of financial research because correlations among data are essential in evaluating portfolio risk. Among various correlations, spatiotemporal involve economic entity attributes and interrelated space time. Such have therefore drawn increasing attention risk management. However, classical correlation measurements typically based on either time serie...

Cross-correlation of complex, picosecond-range, temporal shapes is demonstrated experimentally with the help of a filter recorded in an organic spectral hole-burning material.

The quantitative relationship between change in cell shape and ATP consumption is an unsolved problem in cell biology. In this study, a simultaneous imaging and image processing analysis allowed us to observe and quantify these relationships under physiological conditions, for the first time. We focused on two marginal regions of cells: the microtubule-rich 'lamella' and the actin-rich 'periphe...

The problem of nonseparable space-time covariance functions is essential and difficult in spatiotemporal data analysis. Considering that a fully symmetric space-time covariance function is inappropriate for many spatiotemporal processes, this article provides a way to construct a non-fully symmetric nonseparable space-time correlation function from any given marginal spatial Matérn and marginal...

With recent advances in temporal and spatiotemporal databases, user demands are becoming more complex. As a result, simple queries are replaced by complex multitemporal query scenarios. In this paper we propose a novel image-based approach to temporally group together multidimensional geospatial queries. Correlation signatures act as a powerful raster mapping that visualizes multi-dimensional s...

We examine the spatiotemporal power spectra of image sequences that depict dense motion parallax, namely the parallax seen by an observer moving laterally in a cluttered 3D scene. Previous models of the spatiotemporal power have accounted for effects such as a static 1/f spectrum in each image frame, a spreading of power at high spatial frequencies in the direction of motion, and a bias toward ...

The visual system is concerned with the perception of objects in a dynamic world. A signi cant fact about natural time-varying images is that they do not change randomly over space-time; instead image intensities at di erent times and/or spatial positions are highly correlated. We measured the spatiotemporal correlation function { equivalently the power spectrum { of natural images and we nd th...