Publications [#60659] of David J Brady
Papers Published
- Sinha, Arnab and Brady, David J., Size and shape recognition using measurement statistics and random 3D reference structures,
Optics Express, vol. 11 no. 20
(2003),
pp. 2606 - 2618
(last updated on 2007/04/11)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. © 2003 Optical Society of America.Keywords:
Pattern recognition;Lenses;Radon;Charge coupled devices;Mapping;Probability density function;Statistical methods;Fourier transforms;Algorithms;