Browsing by Author "Murray, Raquel"

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    Computational and laboratory investigations of a model of blood droplet flight for forensic applications
    (2012-09-01) Murray, Raquel; Aruliah, Dhavide; Qureshi, Faisal
    We present a three-dimensional, forward model of blood droplets in ight. The proposed model is based on a set of ordinary di erential equations (ODEs) incorporating viscous drag and gravitational forces. We validate the model against laboratory experiments in which a mock crime scene is constructed. The experiments consist of a ballistics gel containing transfer blood or porcine blood shot by a riot ball from a paintball gun constituting a simulated bloodletting event. The experiments are captured using highspeed stereo camera pair from which three-dimensional trajectories can be extracted using tracking software. The long-term goal is to develop an accurate framework for forensic Bloodstain Pattern Analysis (BPA).