title: Three-dimensional particle imaging by wavefront sensing.
abstract: We present two methods for three-dimensional particle metrology from a single two-dimensional view. The techniques are based on wavefront sensing where the three-dimensional location of a particle is encoded into a single image plane. The first technique is based on multiplanar imaging, and the second produces three-dimensional location information via anamorphic distortion of the recorded images. Preliminary results show that an uncertainty of 8 microm in depth can be obtained for low-particle density over a thin plane, and an uncertainty of 30 microm for higher particle density over a 10 mm deep volume.
authors.affiliation: School of Mechanical Engineering, Leeds University, Leeds, UK. ce.towers@leeds.ac.uk
authors.forename: Catherine E
authors.initials: CE
authors.lastname: Towers
authors.forename: David P
authors.initials: DP
authors.lastname: Towers
authors.forename: Heather I
authors.initials: HI
authors.lastname: Campbell
authors.forename: Sijiong
authors.initials: S
authors.lastname: Zhang
authors.forename: Alan H
authors.initials: AH
authors.lastname: Greenaway