Abstract
The extraction of relevant objects (foreground) from a background is an important first step in many applications. We propose a technique that tackles this problem using a cascade of change detection tests, including noise-induced, illumination variation and structural changes. An objective comparison of pixel-wise modelling methods is first presented. Given its best relation performance/complexity, the mixture of Gaussians was chosen to be used in the proposed method to detect structural changes. Experimental results show that the cascade technique consistently outperforms the commonly used mixture of Gaussians, without additional post-processing and without the expense of processing overheads. ©2007 IEEE.

Abstract
The cosmetic result after breast surgery is an important marker in clinical studies. Most authors used subjective scales to judge breast cosmesis. However, inter-observer discrepancies are very high and the use of such subjective scales for prospective trials is highly disputed. In this study we present for the first time a new invented breast symmetry index This BSI is calculated by subtracting the size and the shape between both breasts (frontal view and side view). The BSI is measured with a software system called breast analysing too( (BAT (c))) from digital. photographs. The photographs of 27 patients have been analysed with this software by different physicians to evolve inter-observer reproducibility. The Harris scale for subjective cosmetic analyses has been correlated with the BSI. In our study the inter-observer reproducibility was excellent (Pearson correlation r = 0.9; p < 0.05) and the 1351 was able to significantly differentiate between good and bad cosmesis (BSI values from 0%d to 30%d is good, BSI > 30%d is bad cosmesis). Thus the BSI may be used for clinical studies.

Abstract

Abstract

Abstract
In this demonstration, I exemplify how a musical channel of communication can be established in computer-mediated interaction between musicians and dancers in real time. This channel of communication uses a software library implemented as a library of external objects for Max/MSP[1], that processes data from an object or library that performs frame-differencing analysis of a video stream in real time in this programming environment.

Abstract
This paper describes methods used to construct an interactive installation using human motion to animate both a visual and aural particle system. It outlines the rotoscoping, meta-motion processing, aural and visual rendering systems. It goes into detailed explanation of the "particle flow" systems which lend form to the virtual characters. The paper finishes with a description of the tracking system and "inverse interaction", used by the installation. Copyright 2007 ACM.