Title
Adversarial Sparse-View CBCT Artifact Reduction.
Abstract
We present an effective post-processing method to reduce the artifacts from sparsely reconstructed cone-beam CT (CBCT) images. The proposed method is based on the state-of-the-art, image-to-image generative models with a perceptual loss as regulation. Unlike the traditional CT artifact-reduction approaches, our method is trained in an adversarial fashion that yields more perceptually realistic outputs while preserving the anatomical structures. To address the streak artifacts that are inherently local and appear across various scales, we further propose a novel discriminator architecture based on feature pyramid networks and a differentially modulated focus map to induce the adversarial training. Our experimental results show that the proposed method can greatly correct the cone-beam artifacts from clinical CBCT images reconstructed using 1/3 projections, and outperforms strong baseline methods both quantitatively and qualitatively.
Year
DOI
Venue
2018
10.1007/978-3-030-00928-1_18
Lecture Notes in Computer Science
DocType
Volume
ISSN
Journal
11070
0302-9743
Citations 
PageRank 
References 
0
0.34
4
Authors
5
Name
Order
Citations
PageRank
Haofu Liao1276.97
Z Huo2388.69
William J. Sehnert310.72
Zhou S. Kevin447441.40
Jiebo Luo56314374.00