CUED Publications database

Robust recognition of chess-boards under deformation

Bennett, S and Lasenby, J (2013) Robust recognition of chess-boards under deformation. In: UNSPECIFIED pp. 2650-2654..

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Current methods for formation of detected chess-board vertices into a grid structure tend to be weak in situations with a warped grid, and false and missing vertex-features. In this paper we present a highly robust, yet efficient, scheme suitable for inference of regular 2D square mesh structure from vertices recorded both during projection of a chess-board pattern onto 3D objects, and in the more simple case of camera calibration. Examples of the method's performance in a lung function measuring application, observing chess-boards projected on to patients' chests, are given. The method presented is resilient to significant surface deformation, and tolerates inexact vertex-feature detection. This robustness results from the scheme's novel exploitation of feature orientation information. © 2013 IEEE.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div F > Signal Processing and Communications
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:17
Last Modified: 17 Aug 2021 08:05
DOI: 10.1109/ICIP.2013.6738546