Automated polyp segmentation in colonoscopy frames using fully convolutional neural network and textons

Zhang, Lei, Dolwani, Sunil ORCID: https://orcid.org/0000-0002-3113-5472 and Ye, Xujiong 2017. Automated polyp segmentation in colonoscopy frames using fully convolutional neural network and textons. Presented at: Medical Image Understanding and Analysis 2017, Edinburgh, 11-13 July 2017. Published in: Valdés Hernández, M and González-Castro, V eds. Medical Image Understanding and Analysis. Communications in Computer and Information Science. Communications in Computer and Information Science , vol.723 Cham: Springer, pp. 707-717. 10.1007/978-3-319-60964-5_62

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Abstract

In this paper, we presented a novel hybrid classification based method for fully automated polyp segmentation in colonoscopy video frames. It contains two main steps: initial region proposals generation and regions refinement. Both machine learned features and hand crafted features are taken into account for polyp segmentation. More specifically, the hierarchical features of polyps are learned by fully convolutional neural network (FCN), while the context information related to the polyp boundaries is modeled by texton patch representation. The FCN provides pixel-wise prediction and initial polyp region candidates. Those candidates are further refined by patch-wise classification using texton based spatial features and a random forest classifier. The segmentation results are evaluated on a publicly available CVC-ColonDB database. On average, our method achieves 97.54% of accuracy, 75.66% of sensitivity, 98.81% of specificity and DICE of 0.70%. The fast execution time (0.16 s/frame) demonstrates the promise of our method to be used in real-time clinical colonoscopic examination.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Medicine
Publisher:	Springer
ISBN:	978-3-319-60963-8
ISSN:	1865-0929
Last Modified:	24 Oct 2022 07:51
URI:	https://orca.cardiff.ac.uk/id/eprint/116114

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