Open AccessDevelopment and uncertainty characterization of 3D particle location from perspective shifted plenoptic images
Author(s) -
Elise Hall,
Daniel Robert Guildenbecher,
Brian S. Thurow
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.007997
Subject(s) - perspective (graphical) , optics , computer vision , sizing , position (finance) , computer science , artificial intelligence , particle (ecology) , magnification , set (abstract data type) , scale (ratio) , matching (statistics) , algorithm , physics , mathematics , art , oceanography , statistics , finance , quantum mechanics , economics , visual arts , programming language , geology
This work details the development of an algorithm to determine 3D position and in plane size and shape of particles by exploiting the perspective shift capabilities of a plenoptic camera combined with stereo-matching methods. This algorithm is validated using an experimental data set previously examined in a refocusing based particle location study in which a static particle field is translated to provide known depth displacements at varied magnification and object distances. Examination of these results indicates increased accuracy and precision is achieved compared to a previous refocusing based method at significantly reduced computational costs. The perspective shift method is further applied to fragment localization and sizing in a lab scale fragmenting explosive.