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A variety of deep neural network (DNN)-based image denoising methods have been proposed for use with medical images. These methods are typically trained by minimizing loss functions that quantify a distance between the denoised image, or a…

Image and Video Processing · Electrical Eng. & Systems 2022-11-28 Kaiyan Li , Hua Li , Mark A. Anastasio

We study how to leverage Web images to augment human-curated object detection datasets. Our approach is two-pronged. On the one hand, we retrieve Web images by image-to-image search, which incurs less domain shift from the curated data than…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Yandong Li , Di Huang , Danfeng Qin , Liqiang Wang , Boqing Gong

We address a core problem of computer vision: Detection and description of 2D feature points for image matching. For a long time, hand-crafted designs, like the seminal SIFT algorithm, were unsurpassed in accuracy and efficiency. Recently,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Aritra Bhowmik , Stefan Gumhold , Carsten Rother , Eric Brachmann

In this paper, we propose a method for training neural networks when we have a large set of data with weak labels and a small amount of data with true labels. In our proposed model, we train two neural networks: a target network, the…

Machine Learning · Statistics 2017-12-01 Mostafa Dehghani , Aliaksei Severyn , Sascha Rothe , Jaap Kamps

Recent research has explored using neural networks to reconstruct undersampled magnetic resonance imaging (MRI) data. Because of the complexity of the artifacts in the reconstructed images, there is a need to develop task-based approaches…

Image and Video Processing · Electrical Eng. & Systems 2022-10-25 Joshua D. Herman , Rachel E. Roca , Alexandra G. O'Neill , Marcus L. Wong , Sajan G. Lingala , Angel R. Pineda

Training deep neural networks requires massive amounts of training data, but for many tasks only limited labeled data is available. This makes weak supervision attractive, using weak or noisy signals like the output of heuristic methods or…

Machine Learning · Computer Science 2017-12-08 Mostafa Dehghani , Aliaksei Severyn , Sascha Rothe , Jaap Kamps

We propose a selective learning method using meta-learning and deep reinforcement learning for medical image interpretation in the setting of limited labeling resources. Our method, MedSelect, consists of a trainable deep learning selector…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Akshay Smit , Damir Vrabac , Yujie He , Andrew Y. Ng , Andrew L. Beam , Pranav Rajpurkar

Visual aesthetic assessment has been an active research field for decades. Although latest methods have achieved promising performance on benchmark datasets, they typically rely on a large number of manual annotations including both…

Computer Vision and Pattern Recognition · Computer Science 2019-12-04 Kekai Sheng , Weiming Dong , Menglei Chai , Guohui Wang , Peng Zhou , Feiyue Huang , Bao-Gang Hu , Rongrong Ji , Chongyang Ma

Recent image degradation estimation methods have enabled single-image super-resolution (SR) approaches to better upsample real-world images. Among these methods, explicit kernel estimation approaches have demonstrated unprecedented…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Royson Lee , Rui Li , Stylianos I. Venieris , Timothy Hospedales , Ferenc Huszár , Nicholas D. Lane

New advancements for the detection of synthetic images are critical for fighting disinformation, as the capabilities of generative AI models continuously evolve and can lead to hyper-realistic synthetic imagery at unprecedented scale and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Pantelis Dogoulis , Giorgos Kordopatis-Zilos , Ioannis Kompatsiaris , Symeon Papadopoulos

Despite remarkable progress on visual recognition tasks, deep neural-nets still struggle to generalize well when training data is scarce or highly imbalanced, rendering them extremely vulnerable to real-world examples. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Shiran Zada , Itay Benou , Michal Irani

Medical image analysis typically includes several tasks such as enhancement, segmentation, and classification. Traditionally, these tasks are implemented using separate deep learning models for separate tasks, which is not efficient because…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Ghada Zamzmi , Sivaramakrishnan Rajaraman , Sameer Antani

We describe a novel, two-stage computer assistance system for lung anomaly detection using ultrasound imaging in the intensive care setting to improve operator performance and patient stratification during coronavirus pandemics. The…

Generative models have made immense progress in recent years, particularly in their ability to generate high quality images. However, that quality has been difficult to evaluate rigorously, with evaluation dominated by heuristic approaches…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Y. Alex Kolchinski , Sharon Zhou , Shengjia Zhao , Mitchell Gordon , Stefano Ermon

Unsupervised image segmentation aims at assigning the pixels with similar feature into a same cluster without annotation, which is an important task in computer vision. Due to lack of prior knowledge, most of existing model usually need to…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Zhichao Wu , Lei Guo , Hao Zhang , Dan Xu

Image clustering is to group a set of images into disjoint clusters in a way that images in the same cluster are more similar to each other than to those in other clusters, which is an unsupervised or semi-supervised learning process. It is…

Computer Vision and Pattern Recognition · Computer Science 2018-08-15 Bo Dong , Xinnian Wang

In this paper, we introduce a unique variant of the denoising Auto-Encoder and combine it with the perceptual loss to classify images in an unsupervised manner. The proposed method, called Pseudo Labelling, consists of first applying a…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Aymene Mohammed Bouayed , Karim Atif , Rachid Deriche , Abdelhakim Saim

Medical image classification is one of the most critical problems in the image recognition area. One of the major challenges in this field is the scarcity of labelled training data. Additionally, there is often class imbalance in datasets…

Image and Video Processing · Electrical Eng. & Systems 2022-09-29 Khushboo Mehra , Hassan Soliman , Soumya Ranjan Sahoo

It is well known that for some tasks, labeled data sets may be hard to gather. Therefore, we wished to tackle here the problem of having insufficient training data. We examined learning methods from unlabeled data after an initial training…

Machine Learning · Computer Science 2018-04-06 Gal Hyams , Daniel Greenfeld , Dor Bank

In machine learning and computer vision, input images are often filtered to increase data discriminability. In some situations, however, one may wish to purposely decrease discriminability of one classification task (a "distractor" task),…

Computer Vision and Pattern Recognition · Computer Science 2011-10-05 Jacob Whitehill , Javier Movellan