Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2018 Jun 28;8:9802. doi: 10.1038/s41598-018-28100-x

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Lung segmentation evaluation workflow illustrated using a sample sagittal CT slice multiplied by its lung mask: (a) Axial slice of the segmented lung obtained after the Lung and Airway Segmentation and Airway Extraction processes showing holes (black areas inside the parenchyma) and fuzzy boundaries (in yellow); (b) Segmentation after the 3D morphological hole filling process including the holes enclosed by the lung parenchyma; (c) Seeds extracted on the eroded lung surface both in fuzzy boundaries (in yellow) and in TB lesions attached to the pleura (in red); (d) Respiratory motion artifact in the diaphragm area (in yellow) and TB lesion mask (in red) extracted by the combined level set and active contour approach; (e) Final segmentation in which the lesion attached to the pleura has been included and the fuzzy boundaries excluded.