Paper
7 June 2023 Video-TransUNet: temporally blended vision transformer for CT VFSS instance segmentation
Author Affiliations +
Proceedings Volume 12701, Fifteenth International Conference on Machine Vision (ICMV 2022); 127010D (2023) https://doi.org/10.1117/12.2679409
Event: Fifteenth International Conference on Machine Vision (ICMV 2022), 2022, Rome, Italy
Abstract
We propose Video-TransUNet, a deep architecture for instance segmentation in medical CT videos constructed by integrating temporal feature blending into the TransUNet deep learning framework. In particular, our approach amalgamates strong frame representation via a ResNet CNN backbone, multi-frame feature blending via a Temporal Context Module (TCM), non-local attention via a Vision Transformer, and reconstructive capabilities for multiple targets via a UNet-based convolutional-deconvolutional architecture with multiple heads. We show that this new network design can significantly outperform other state-of-the-art systems when tested on the segmentation of bolus and pharynx/larynx in Videofluoroscopic Swallowing Study (VFSS) CT sequences. On our VFSS2022 dataset it achieves a dice coefficient of 0.8796 and an average surface distance of 1.0379 pixels. Note that tracking the pharyngeal bolus accurately is a particularly important application in clinical practice since it constitutes the primary method for diagnostics of swallowing impairment. Our findings suggest that the proposed model can indeed enhance the TransUNet architecture via exploiting temporal information and improving segmentation performance by a significant margin. We publish key source code, network weights, and ground truth annotations for simplified performance reproduction.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chengxi Zeng, Xinyu Yang, Majid Mirmehdi, Alberto M. Gambaruto, and Tilo Burghardt "Video-TransUNet: temporally blended vision transformer for CT VFSS instance segmentation", Proc. SPIE 12701, Fifteenth International Conference on Machine Vision (ICMV 2022), 127010D (7 June 2023); https://doi.org/10.1117/12.2679409
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KEYWORDS
Transformers

Video

Image segmentation

Computed tomography

Ablation

Deep learning

Feature extraction

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