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Proceedings Paper

Real metrology by using depth map information
Author(s): Edoardo Ardizzone; Sebastiano Battiato; Alessandro Capra; Salvatore Curti
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Paper Abstract

Usually in an image no real information about the scene’s depth (in terms of absolute distance) is available. In this paper, a method that extracts real depth measures is developed. This approach starts considering a region located in the center of the depth map. This region can be positioned, interactively, in any part of the depth map in order to measure the real distance of every object inside the scene. The histogram local maxima of this region are determined. Among these values the biggest, that represents the gray-level of the most considerable object, is chosen. This gray-level is used in an exponential mapping function that converts, using the input camera settings, the depth map gray-levels into real measures. Experiments over a large dataset of images show good performances in terms of accuracy and reliability.

Paper Details

Date Published: 16 April 2004
PDF: 8 pages
Proc. SPIE 5302, Three-Dimensional Image Capture and Applications VI, (16 April 2004); doi: 10.1117/12.526596
Show Author Affiliations
Edoardo Ardizzone, Univ. degli Studi di Palermo (Italy)
Sebastiano Battiato, Univ. degli Studi di Catania (Italy)
Alessandro Capra, STMicroelectronics (Italy)
Salvatore Curti, STMicroelectronics (Italy)

Published in SPIE Proceedings Vol. 5302:
Three-Dimensional Image Capture and Applications VI
Brian D. Corner; Peng Li; Roy P. Pargas, Editor(s)

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