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Depth image enhancement using 1D least median of squares


Islam, A B M Tariqul; Scheel, Christian; Pajarola, Renato; Staadt, Oliver G (2015). Depth image enhancement using 1D least median of squares. In: Computer Graphics International Short Papers, Strasbourg, France, 24 June 2015 - 26 June 2015, 1-4.

Abstract

We propose a new method to enhance the depth images from RGB-D sensors, such as Kinects, by filling the missing/invalid values which are reported by those sensors at certain pixels. We introduce a robust 1D least median of squares (1D LMedS) approach to accurately estimate the depth values of those invalid pixels. We use this approach for efficient traversal of each pixel’s depth values over a se- quence of frames and look for invalid depth values (con- sidered as outliers), and finally, replace those values with stable valid depth values. Our approach solves the unstable nature of depth values in captured scenes that is perceived as flickering. Experimental results show good improvement both for static and moving parts of a scene.

Abstract

We propose a new method to enhance the depth images from RGB-D sensors, such as Kinects, by filling the missing/invalid values which are reported by those sensors at certain pixels. We introduce a robust 1D least median of squares (1D LMedS) approach to accurately estimate the depth values of those invalid pixels. We use this approach for efficient traversal of each pixel’s depth values over a se- quence of frames and look for invalid depth values (con- sidered as outliers), and finally, replace those values with stable valid depth values. Our approach solves the unstable nature of depth values in captured scenes that is perceived as flickering. Experimental results show good improvement both for static and moving parts of a scene.

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Additional indexing

Item Type:Conference or Workshop Item (Paper), refereed, original work
Communities & Collections:03 Faculty of Economics > Department of Informatics
Dewey Decimal Classification:000 Computer science, knowledge & systems
Language:English
Event End Date:26 June 2015
Deposited On:12 Aug 2016 07:24
Last Modified:08 Dec 2017 20:09
Publisher:Computer Graphics and Geometry Group of ICube Laboratory
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.13140/RG.2.1.3123.8244
Related URLs:http://cgi2015.unistra.fr/ (Organisation)
Other Identification Number:merlin-id:12950

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