The depth reconstruction accuracy in a stereo vision system
|Document type:||Conference Papers|
|Title:||The depth reconstruction accuracy in a stereo vision system|
|Conference name:||XLI Intercollegiate Metrology Conference|
|Publisher:||Polish Academy of Science, Metrology and Science Instruments Section|
|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
|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.