Search Results for author: Murray Loew

Found 18 papers, 10 papers with code

CaraNet: Context Axial Reverse Attention Network for Segmentation of Small Medical Objects

1 code implementation31 Jan 2023 Ange Lou, Shuyue Guan, Murray Loew

This paper proposes a Context Axial Reverse Attention Network (CaraNet) to improve the segmentation performance on small objects compared with several recent state-of-the-art models.

Segmentation

A Sneak Attack on Segmentation of Medical Images Using Deep Neural Network Classifiers

no code implementations8 Jan 2022 Shuyue Guan, Murray Loew

Instead of using current deep-learning segmentation models (like the UNet and variants), we approach the segmentation problem using trained Convolutional Neural Network (CNN) classifiers, which automatically extract important features from images for classification.

Image Classification Segmentation

A Teacher-Student Framework with Fourier Augmentation for COVID-19 Infection Segmentation in CT Images

no code implementations13 Oct 2021 Han Chen, Yifan Jiang, Hanseok Ko, Murray Loew

Automatic segmentation of infected regions in computed tomography (CT) images is necessary for the initial diagnosis of COVID-19.

Computed Tomography (CT) Segmentation

A Novel Intrinsic Measure of Data Separability

no code implementations11 Sep 2021 Shuyue Guan, Murray Loew

To quantitatively measure the separability of datasets, we create an intrinsic measure -- the Distance-based Separability Index (DSI), which is independent of the classifier model.

A Distance-based Separability Measure for Internal Cluster Validation

1 code implementation17 Jun 2021 Shuyue Guan, Murray Loew

Without true labels, to design an effective CVI is as difficult as to create a clustering method.

Clustering

CFPNet-M: A Light-Weight Encoder-Decoder Based Network for Multimodal Biomedical Image Real-Time Segmentation

1 code implementation10 May 2021 Ange Lou, Shuyue Guan, Murray Loew

By comparison, CFPNet-M achieves comparable segmentation results on all five medical datasets with only 0. 65 million parameters, which is about 2% of U-Net, and 8. 8 MB memory.

Image Segmentation Medical Image Segmentation +2

CFPNet: Channel-wise Feature Pyramid for Real-Time Semantic Segmentation

2 code implementations22 Mar 2021 Ange Lou, Murray Loew

Based on the CFP module, we built CFPNet for real-time semantic segmentation which applied a series of dilated convolution channels to extract effective features.

Autonomous Driving Real-Time Semantic Segmentation +1

Understanding the Ability of Deep Neural Networks to Count Connected Components in Images

no code implementations5 Jan 2021 Shuyue Guan, Murray Loew

We proposed three ML-learnable characteristics to verify learnable problems for ML models, such as DNNs, and explain why DNNs work for specific counting problems but cannot generally count connected components.

Object Counting

Unsupervised domain adaptation based COVID-19 CT infection segmentation network

no code implementations23 Nov 2020 Han Chen, Yifan Jiang, Murray Loew, Hanseok Ko

In this paper, we propose an unsupervised domain adaptation based segmentation network to improve the segmentation performance of the infection areas in COVID-19 CT images.

Computed Tomography (CT) Segmentation +1

Segmentation of Infrared Breast Images Using MultiResUnet Neural Network

no code implementations31 Oct 2020 Ange Lou, Shuyue Guan, Nada Kamona, Murray Loew

It was used to segment the breast area by using a set of breast IR images, collected in our pilot study by imaging breast cancer patients and normal volunteers with a thermal infrared camera (N2 Imager).

Segmentation

The training accuracy of two-layer neural networks: its estimation and understanding using random datasets

no code implementations26 Oct 2020 Shuyue Guan, Murray Loew

In this study, we propose a novel theory based on space partitioning to estimate the approximate training accuracy for two-layer neural networks on random datasets without training.

Analysis of Generalizability of Deep Neural Networks Based on the Complexity of Decision Boundary

1 code implementation16 Sep 2020 Shuyue Guan, Murray Loew

We create the decision boundary complexity (DBC) score to define and measure the complexity of decision boundary of DNNs.

An Internal Cluster Validity Index Using a Distance-based Separability Measure

1 code implementation2 Sep 2020 Shuyue Guan, Murray Loew

And, to have more CVIs is crucial because there is no universal CVI that can be used to measure all datasets, and no specific method for selecting a proper CVI for clusters without true labels.

Clustering Clustering Algorithms Evaluation

COVID-19 CT Image Synthesis with a Conditional Generative Adversarial Network

no code implementations29 Jul 2020 Yifan Jiang, Han Chen, Murray Loew, Hanseok Ko

However, training a deep-learning model requires large volumes of data, and medical staff faces a high risk when collecting COVID-19 CT data due to the high infectivity of the disease.

Computed Tomography (CT) COVID-19 Diagnosis +3

Data Separability for Neural Network Classifiers and the Development of a Separability Index

1 code implementation27 May 2020 Shuyue Guan, Murray Loew, Hanseok Ko

In machine learning, the performance of a classifier depends on both the classifier model and the dataset.

BIG-bench Machine Learning

A Novel Measure to Evaluate Generative Adversarial Networks Based on Direct Analysis of Generated Images

2 code implementations27 Feb 2020 Shuyue Guan, Murray Loew

We characterize the performance of a GAN as an image generator according to three aspects: 1) Creativity: non-duplication of the real images.

Generative Adversarial Network

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