Multi-spectral imaging for the estimation of shooting distances.

  title={Multi-spectral imaging for the estimation of shooting distances.},
  author={F{\'e}lix Zapata and Mar{\'i}a L{\'o}pez-L{\'o}pez and Jos{\'e} Manuel Amigo and Carmen Garcia-Ruiz},
  journal={Forensic science international},
Multispectral images of clothing targets shot at seven different distances (from 10 to 220cm) were recorded at 18 specific wavelengths in the 400-1000nm range to visualize the gunshot residue (GSR) pattern. Principal component analysis (PCA) showed that the use of violet-blue wavelengths (430, 450 and 470nm) provided the largest contrast between the GSR… CONTINUE READING