Probabilistic inverse dynamics for blood pattern reconstruction

B. Cecchetto, W. Heidrich

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

We present a method of reconstructing the region of origin and trajectories for particles given impact directions and positions. This method works for nonlinear trajectories, such as parabolic motion or motion with drag if given drag parameters. Our method works if given the impact speeds as well, or they can be estimated using a similar total initial energy prior. We apply our algorithm to the case of forensic blood pattern reconstruction, by automatically estimating impact velocities directly form the blood patterns. We validate our method in physically accurate simulated experiments, a feasibility study varying the impact angle and speed to estimate the impact speed from blood drop densities, as well as a forensic experiment using blood to reconstruct the region of origin.

Original languageEnglish (US)
Title of host publicationVMV 2011 - Vision, Modeling and Visualization
Pages369-376
Number of pages8
DOIs
StatePublished - 2011
Externally publishedYes
Event16th International Workshop on Vision, Modeling and Visualization, VMV 2011 - Berlin, Germany
Duration: Oct 4 2011Oct 6 2011

Other

Other16th International Workshop on Vision, Modeling and Visualization, VMV 2011
CountryGermany
CityBerlin
Period10/4/1110/6/11

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Modeling and Simulation

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