Generalization of the multipath interference compensation algorithm in pulsed time-of-flight imaging - Details

Author：

Liu, Chuan (Liu, Chuan.) | Lang, Shinan (Lang, Shinan.) | Wu, Qiang (Wu, Qiang.) | Zhang, Jizhong (Zhang, Jizhong.)

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Abstract：

We　extend　the　previously　presented　two-path　interference　compensation　method　for　pulsed　Time-of-Flight　(ToF)　cameras　to　three　or　more　paths.　By　generalizing　the　model　of　multipath　effect,　we　transform　the　measured　vector　consisting　of　multiple　light　periods　to　make　it　sparse　and　apply　the　L1　norm　regularization　algorithm　to　estimate　the　depth　of　the　main　path　component.　In　theory,　the　combination　of　any　number　of　components　can　be　separated.　Due　to　the　experimental　conditions,　we　validate　the　proposed　method　in　the　three-path　scene.　Experiments　show　that　the　components　are　effectively　separated.　©　2019　IEEE.

Keyword：

Cameras Multipath propagation Separation Signal interference

Author Community：

[ 1 ] [Liu, Chuan]Beijing University of Technology, Department of Information, Beijing, China
[ 2 ] [Lang, Shinan]Beijing University of Technology, Department of Information, Beijing, China
[ 3 ] [Wu, Qiang]Beijing University of Technology, Department of Information, Beijing, China
[ 4 ] [Zhang, Jizhong]Beijing University of Technology, Department of Information, Beijing, China