The depth reconstruction accuracy in a stereo vision system

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Jiandan Chen
Title: The depth reconstruction accuracy in a stereo vision system
Conference name: XLI Intercollegiate Metrology Conference
Year: 2009
ISBN: 83-911669-5-3
Publisher: Polish Academy of Science, Metrology and Science Instruments Section
City: Gdansk
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Electrical Engineering (Sektionen för ingenjörsvetenskap - Avd. för elektroteknik)
School of Engineering S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/ing/
Authors e-mail: jdc@bth.se
Language: English
Abstract: A 3D space can be reconstructed from the images produced by a pair of digital vision sen-sors. However, due to the digital sensor the reconstructed space is discretized and its quanti-sation levels are defined by the iso-disparity surfaces. Thus, the accuracy of the space depth reconstruction is related to the iso-disparity map.

A validation of the reconstruction techniques requires a measurement with a high accu-racy reference. This paper introduces an easily implemented method based on a differential depth measurement. The modelling and analysis of the quantization uncertainty of the depth and differential depth measurements is presented in the paper. The model is verified through simulations, and further verified by a physical experiment.
Subject: Signal Processing\General
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