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Convolutional Neural Networks (CNNs) work very well for supervised learning problems when the training dataset is representative of the variations expected to be encountered at test time. In medical image segmentation, this premise is…

Image and Video Processing · Electrical Eng. & Systems 2021-01-26 Neerav Karani , Ertunc Erdil , Krishna Chaitanya , Ender Konukoglu

We introduce a novel unsupervised loss function for learning semantic segmentation with deep convolutional neural nets (ConvNet) when densely labeled training images are not available. More specifically, the proposed loss function penalizes…

Computer Vision and Pattern Recognition · Computer Science 2018-08-09 Mehran Javanmardi , Mehdi Sajjadi , Ting Liu , Tolga Tasdizen

Recent research has shown that numerous human-interpretable directions exist in the latent space of GANs. In this paper, we develop an automatic procedure for finding directions that lead to foreground-background image separation, and we…

Computer Vision and Pattern Recognition · Computer Science 2021-05-19 Luke Melas-Kyriazi , Christian Rupprecht , Iro Laina , Andrea Vedaldi

While deep learning models have become the predominant method for medical image segmentation, they are typically not capable of generalizing to unseen segmentation tasks involving new anatomies, image modalities, or labels. Given a new…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Victor Ion Butoi , Jose Javier Gonzalez Ortiz , Tianyu Ma , Mert R. Sabuncu , John Guttag , Adrian V. Dalca

There is large consent that successful training of deep networks requires many thousand annotated training samples. In this paper, we present a network and training strategy that relies on the strong use of data augmentation to use the…

Computer Vision and Pattern Recognition · Computer Science 2015-05-19 Olaf Ronneberger , Philipp Fischer , Thomas Brox

In this paper we propose a novel deep learning-based algorithm for biomedical image segmentation which uses a sequential attention mechanism able to shift the focus of attention across the image in a selective way, allowing subareas which…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Shohei Hayashi , Bisser Raytchev , Toru Tamaki , Kazufumi Kaneda

Cardiac segmentation is in great demand for clinical practice. Due to the enormous labor of manual delineation, unsupervised segmentation is desired. The ill-posed optimization problem of this task is inherently challenging, requiring…

Image and Video Processing · Electrical Eng. & Systems 2023-01-18 Sihan Wang , Fuping Wu , Lei Li , Zheyao Gao , Byung-Woo Hong , Xiahai Zhuang

Accurate segmentation of anatomical structures is vital for medical image analysis. The state-of-the-art accuracy is typically achieved by supervised learning methods, where gathering the requisite expert-labeled image annotations in a…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Yuhang Lu , Kang Zheng , Weijian Li , Yirui Wang , Adam P. Harrison , Chihung Lin , Song Wang , Jing Xiao , Le Lu , Chang-Fu Kuo , Shun Miao

Convolutional Neural Networks (CNNs) have been recently employed to solve problems from both the computer vision and medical image analysis fields. Despite their popularity, most approaches are only able to process 2D images while most…

Computer Vision and Pattern Recognition · Computer Science 2016-06-16 Fausto Milletari , Nassir Navab , Seyed-Ahmad Ahmadi

We introduce Equivariant Neural Field Expectation Maximization (EFEM), a simple, effective, and robust geometric algorithm that can segment objects in 3D scenes without annotations or training on scenes. We achieve such unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Jiahui Lei , Congyue Deng , Karl Schmeckpeper , Leonidas Guibas , Kostas Daniilidis

Surgical tool segmentation in endoscopic images is an important problem: it is a crucial step towards full instrument pose estimation and it is used for integration of pre- and intra-operative images into the endoscopic view. While many…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Daniil Pakhomov , Wei Shen , Nassir Navab

Medical image segmentation can provide a reliable basis for further clinical analysis and disease diagnosis. The performance of medical image segmentation has been significantly advanced with the convolutional neural networks (CNNs).…

Image and Video Processing · Electrical Eng. & Systems 2022-03-02 Ruxin Wang , Shuyuan Chen , Chaojie Ji , Jianping Fan , Ye Li

Segmentation is essential for medical image analysis tasks such as intervention planning, therapy guidance, diagnosis, treatment decisions. Deep learning is becoming increasingly prominent for segmentation, where the lack of annotations,…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Firat Ozdemir , Zixuan Peng , Christine Tanner , Philipp Fuernstahl , Orcun Goksel

We introduce MOVE, a novel method to segment objects without any form of supervision. MOVE exploits the fact that foreground objects can be shifted locally relative to their initial position and result in realistic (undistorted) new images.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Adam Bielski , Paolo Favaro

Semi-supervised learning has made significant strides in the medical domain since it alleviates the heavy burden of collecting abundant pixel-wise annotated data for semantic segmentation tasks. Existing semi-supervised approaches enhance…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Xu Zheng , Chong Fu , Haoyu Xie , Jialei Chen , Xingwei Wang , Chiu-Wing Sham

A feature learning task involves training models that are capable of inferring good representations (transformations of the original space) from input data alone. When working with limited or unlabelled data, and also when multiple visual…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Gabriel B. Cavallari , Leonardo Sampaio Ferraz Ribeiro , Moacir Antonelli Ponti

We tackle biomedical image segmentation in the scenario of only a few labeled brain MR images. This is an important and challenging task in medical applications, where manual annotations are time-consuming. Current multi-atlas based…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Hyeon Woo Lee , Mert R. Sabuncu , Adrian V. Dalca

Medical segmentation is performed to determine the bounds of regions of interest (ROI) prior to surgery. By allowing the study of growth, structure, and behaviour of the ROI in the planning phase, critical information can be obtained,…

Image and Video Processing · Electrical Eng. & Systems 2020-10-06 Bao Nguyen , Adam Feldman , Sarath Bethapudi , Andrew Jennings , Chris G. Willcocks

Context-dependence in human cognition process is a well-established fact. Following this, we introduced the image segmentation method that can use context to classify a pixel on the basis of its membership to a particular object-class of…

Computer Vision and Pattern Recognition · Computer Science 2012-02-10 Upendra Kumar , Tapobrata Lahiri , Manoj Kumar Pal

Deep convolutional neural networks (CNN) proved to be highly accurate to perform anatomical segmentation of medical images. However, some of the most popular CNN architectures for image segmentation still rely on post-processing strategies…

Image and Video Processing · Electrical Eng. & Systems 2019-06-07 Agostina J. Larrazabal , Cesar Martinez , Enzo Ferrante
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