Search Results for author: James Keller

Found 10 papers, 2 papers with code

Histogram Layers for Synthetic Aperture Sonar Imagery

no code implementations8 Sep 2022 Joshua Peeples, Alina Zare, Jeffrey Dale, James Keller

Synthetic aperture sonar (SAS) imagery is crucial for several applications, including target recognition and environmental segmentation.

Possibilistic Fuzzy Local Information C-Means with Automated Feature Selection for Seafloor Segmentation

no code implementations14 Oct 2021 Joshua Peeples, Daniel Suen, Alina Zare, James Keller

The chosen features and resulting segmentation from the image will be assessed based on a select quantitative clustering validity criterion and the subset of the features that reach a desired threshold will be used for the segmentation process.

Clustering feature selection +3

The Weakly-Labeled Rand Index

no code implementations8 Mar 2021 Dylan Stewart, Anna Hampton, Alina Zare, Jeff Dale, James Keller

In this paper, a labeling approach and associated modified version of the Rand index for weakly-labeled data is introduced to address these issues.

Segmentation

Explainable Systematic Analysis for Synthetic Aperture Sonar Imagery

no code implementations6 Jan 2021 Sarah Walker, Joshua Peeples, Jeff Dale, James Keller, Alina Zare

In this work, we present an in-depth and systematic analysis using tools such as local interpretable model-agnostic explanations (LIME) (arXiv:1602. 04938) and divergence measures to analyze what changes lead to improvement in performance in fine tuned models for synthetic aperture sonar (SAS) data.

Classification General Classification +1

Divergence Regulated Encoder Network for Joint Dimensionality Reduction and Classification

1 code implementation31 Dec 2020 Joshua Peeples, Sarah Walker, Connor McCurley, Alina Zare, James Keller, Weihuang Xu

In order to better represent statistical texture information for remote-sensing image classification, in this paper, we investigate performing joint dimensionality reduction and classification using a novel histogram neural network.

Classification Dimensionality Reduction +3

Extending the Morphological Hit-or-Miss Transform to Deep Neural Networks

no code implementations4 Dec 2019 Muhammad Aminul Islam, Bryce Murray, Andrew Buck, Derek T. Anderson, Grant Scott, Mihail Popescu, James Keller

While most deep learning architectures are built on convolution, alternative foundations like morphology are being explored for purposes like interpretability and its connection to the analysis and processing of geometric structures.

U-Net for MAV-based Penstock Inspection: an Investigation of Focal Loss in Multi-class Segmentation for Corrosion Identification

no code implementations18 Sep 2018 Ty Nguyen, Tolga Ozaslan, Ian D. Miller, James Keller, Giuseppe Loianno, Camillo J. Taylor, Daniel D. Lee, Vijay Kumar, Joseph H. Harwood, Jennifer Wozencraft

Periodical inspection and maintenance of critical infrastructure such as dams, penstocks, and locks are of significant importance to prevent catastrophic failures.

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