Particle image velocimetry (PIV) is a quantitative optical method used in experimental fluid dynamics that captures entire 2D/3D velocity field by measuring the displacements of numerous small particles that follow the motion of the Abstract A detailed statistical assessment of seedless velocity measurement using Schlieren Image Velocimetry (SIV) was explored using open source Robust Phase Corr...

Recent work on search has identified an intriguing feature dubbed the constrainedness knife-edge by Walsh (Proc. AAAI98, 406–411) whereby overconstrained problems seem to become on average even more constrained as the search goes deeper, while underconstrained ones become less constrained. The present paper shows that while the knife-edge phenomenon itself is real, many of the claims that have ...

This paper describes some aspects of recent and ongoing work in the area of Cognitive Robotics in the Department of Electrical and Electronic Engineering at Imperial College. Our approach to Cognitive Robotics has been to apply abductive reasoning procedures using the Event Calculus, an extension to First Order Predicate Calculus (FOPC), to provide a unified view of several related mobile robot...

A low-cost and high-precision straightness measurement system using a DVD pick-up head has been developed in this research. By removing its objective lens the pick-up head of a commercial DVD player possesses excellent properties of stable laser power, collimated laser beam, circular Gaussian distribution and sensitive photodetectors. A moving knife-edge piece is placed between the pick-up head...

With the increasing prevalence of wireless communication and use large-scale ultra-dense networking technologies, effect human body as an obstacle on electromagnetic wave propagation has gained significance in complex spaces with dense traffic, such indoor environments mass transit systems. In this study, we investigate shadowing properties sub-6GHz frequency band used mainstream Four models (h...