Cited by 143D Shape Modeling and AnalysisAdvanced Neural Network ApplicationsAdvanced Vision and Imaging

Segmentation and semantic labelling of RGBD data with convolutional neural networks and surface fitting

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Pagnutti, Giampaolo, Minto, Ludovico, Zanuttigh, Pietro·2017·IET Computer Vision

Abstract

We present an approach for segmentation and semantic labelling of RGBD data exploiting together geometrical cues and deep learning techniques. An initial over‐segmentation is performed using spectral clustering and a set of non‐uniform rational B‐spline surfaces is fitted on the extracted segments. Then a convolutional neural network (CNN) receives in input colour and geometry data together with surface fitting parameters. The network is made of nine convolutional stages followed by a softmax classifier and produces a vector of descriptors for each sample. In the next step, an iterative merging algorithm recombines the output of the over‐segmentation into larger regions matching the various elements of the scene. The couples of adjacent segments with higher similarity according to the CNN features are candidate to be merged and the surface fitting accuracy is used to detect which couples of segments belong to the same surface. Finally, a set of labelled segments is obtained by combining the segmentation output with the descriptors from the CNN. Experimental results show how the proposed approach outperforms state‐of‐the‐art methods and provides an accurate segmentation and labelling.

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Crossref · 10.1049/iet-cvi.2016.0502

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Authors
Pagnutti, G., Minto, L., & Zanuttigh, P.
Affiliations
University of Padua (IT)
Corresponding author
Zanuttigh, Pietro
Venue
IET Computer Vision
Published
2017-09-20
Volume
11
Issue
8
Pages
633-642
ISSN
  • 1751-9632 (ISSN-L)
  • 1751-9640
OpenAlex
W2745846084
Cited by
14
References
39
Citations by year
2023: 1 · 2022: 3 · 2020: 4 · 2019: 4 · 2018: 2
FWCI
2.15
Type
journal article
Language
en
Open access
Locations
  • IET Computer Vision (publishedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Nvidia (K40 GPU)
Topics
  • Physical Sciences › Engineering › Computational Mechanics › 3D Shape Modeling and Analysis
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Vision and Imaging
Keywords
semantic segmentation, semantic annotation, surface fitting, NURBS, spectral clustering, over-segmentation, convolutional neural networks, geometric cues, scene understanding

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