Size and shape recognition using measurement statistics and random 3D reference structures

Arnab Sinha, David J. Brady

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Three dimensional (3D) reference structures segment source spaces based on whether particular source locations are visible or invisible to the sensor. A lensless 3D reference structure based imaging system measures projections of this source space on a sensor array. We derive and experimentally verify a model to predict the statistics of the measured projections for a simple 2D object. We show that the statistics of the measurement can yield an accurate estimate of the size of the object without ever forming a physical image. Further, we conjecture that the measured statistics can be used to determine the shape of 3D objects and present preliminary experimental measurements for 3D shape recognition.

Original languageEnglish (US)
Pages (from-to)2606-2618
Number of pages13
JournalOptics Express
Volume11
Issue number20
DOIs
StatePublished - Oct 2003
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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