Abnormal Event Detection in Videos using Spatiotemporal Autoencoder

We present an efficient method for detecting anomalies in videos. Recent applications of convolutional neural networks have shown promises of convolutional layers for object detection and recognition, especially in images. However, convolutional neural networks are supervised and require labels as learning signals. We propose a spatiotemporal architecture for anomaly detection in videos including crowded scenes. Our architecture includes two main components, one for spatial feature representation, and one for learning the temporal evolution of the spatial features. Experimental results on Avenue, Subway and UCSD benchmarks confirm that the detection accuracy of our method is comparable to state-of-the-art methods at a considerable speed of up to 140 fps

Photoelectrochemical Degradation of Dye Pollutants Using Tio2 Thin Film Electrodes

Thin film electrodes were fabricated by immobilizing titanium dioxide (Ti02) onto titanium substrate using sol gel dip-coating method. The electrochemical technique was employed to study the photodegradation process on methyl orange dye. The effects of various parameters and conditions on electrochemical assisted photocatalytic degradation process were investigated by monitoring dyes decolourisation rates using UV-Vis spectrophotometer. Photosensitivity of the Ti02 thin film electrode was analysed by Linear Sweep Voltammetry (LSV) and Cyclic Voltamrnetry (CV) techniques combined with illumination. Sample heat-treated at 500°C showed the best photosensitivity. The TiOz thin films and the dried gel were also analysed using Scanning Electron Microscope (SEM), X-Ray Diffiactometry (XRD), UV/Vis Spectroscopy, Fourier Transform-Infra Red (FT-IR), Thennogravimetric Analyser (TGA), Differential Thermal Analyser (DTA) and CHNS analyser. The photoelectrochemical degradation experiment results showed that the rate of dye removal increased with external applied potential between 0.0 V and 1.5 V versus AgIAgCl reference electrode. Meanwhile, the photoeletrochemical degradation rate was also affected by initial concentrations, light intensity, light sources, photocatalysts coated area, repeated use, supporting electrolyte, solution pH, agitation and solution temperature. The photoelectrochemical degradation experiment was also camed out on naphtol blue black, rhodamine 6G, methylene blue, reactive blue 2, direct red 81, mixed dyes (consists of methyl orange, naphtol blue black, rhodamine 6G, methylene blue, reactive blue 2, direct red 8 1) and actual textile effluents. The removal efficiency was evaluated and compared in terms of UV/Vis decolourisation, Total Organic Carbon (TOC), Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)

Fleet Management System

Managing paper-driven employee travel and expenses is a slow, fragmented process with abundant potential for uncontrolled spending. As a result, there is a need for a Travel and Expenses Management System to provide a better control and reduce the cycle time. Customizing a standard software package to suit the company operation is selected in order to ensure that the company can leverage from the industry proven best practices of travel and expenses claim processes and at the same time maintain the company unique requirements. This report describes the needs for expense claim automation and the process to customize a standard Travel and Expenses Management System package. The project covers the use of Microsoft Solution Framework (MSF) process model, functional decomposition, process flow diagram and program flow diagram to represent the current system and the proposed system. This paper introduces a web-based Travel and Expenses Management System to enhance the expense claim processes. The system analysis outlines the system requirements by going through the functionality assessment, option assessment and gap resolution. The functional specification illustrates the customization needed by focusing on functionality, technical review, input, processing and output. In addition, the paper shows the fit of MSF process model in this project development and proposes the use of MSF team model for the project involving team efforts. It also outlines the possible additional features and functionalities that could further improve the system