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PCA-aided Fully Convolutional Networks for Semantic Segmentation of Multi-channel fMRI

2016/10/06 by Lei Tai, Haoyang Ye, Tai, Lei +5
Computer Science · Neuroscience · #Advanced Neural Network Applications #Brain Tumor Detection and Classification #Computer Vision and Pattern Recognition (cs.CV) #FOS: Computer and information sciences #Medical Image Segmentation Techniques #Robotics (cs.RO) #cs.CV #cs.RO

paper · pdf · doi:10.48550/arxiv.1610.01732

ICAR 2017 - 18th International Conference on Advanced Robotics, Best Student Paper Award, 6 figures

openalex publication_date 2016/10/06 · openalex created_date 2016/10/14 · arxiv created 2017/07/11 · arxiv updated 2017/07/12 · openalex updated_date 2026/07/28

Abstract

Semantic segmentation of functional magnetic resonance imaging (fMRI) makes great sense for pathology diagnosis and decision system of medical robots. The multi-channel fMRI provides more information of the pathological features. But the increased amount of data causes complexity in feature detections. This paper proposes a principal component analysis (PCA)-aided fully convolutional network to particularly deal with multi-channel fMRI. We transfer the learned weights of contemporary classification networks to the segmentation task by fine-tuning. The results of the convolutional network are compared with various methods e.g. k-NN. A new labeling strategy is proposed to solve the semantic segmentation problem with unclear boundaries. Even with a small-sized training dataset, the test results demonstrate that our model outperforms other pathological feature detection methods. Besides, its forward inference only takes 90 milliseconds for a single set of fMRI data. To our knowledge, this is the first time to realize pixel-wise labeling of multi-channel magnetic resonance image using FCN.

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