3D Particle Position Measurement via the Defocusing Concept

In this paper, the authors present a 3D particle position measurement method based on the defocusing concept introduced by A.Pentland with a single camera. Different from the existing approaches, the blur circle is used to identify the blur extent for various defocused particles, and the depth-blur relation is formulated by the modified A.Pentland mathematical formula. And, an eight-step algorithm based on circular Hough transform and quadrant radius histogram was given to calculate the 3D particle position.

Provided by: Science & Engineering Research Support soCiety (SERSC) Topic: Enterprise Software Date Added: Nov 2010 Format: PDF

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