Search Results for author: Oliver Cossairt

Found 24 papers, 7 papers with code

Investigating the Potential of Auxiliary-Classifier GANs for Image Classification in Low Data Regimes

no code implementations22 Jan 2022 Amil Dravid, Florian Schiffers, Yunan Wu, Oliver Cossairt, Aggelos K. Katsaggelos

Generative Adversarial Networks (GANs) have shown promise in augmenting datasets and boosting convolutional neural networks' (CNN) performance on image classification tasks.

Classification Image Classification +1

Anatomy of a superorganism -- structure and growth dynamics of army ant bivouacs

no code implementations18 Oct 2021 Thomas Bochynek, Florian Schiffers, André Aichert, Oliver Cossairt, Simon Garnier, Michael Rubenstein

Beyond unicellular and multicellular organisms, there is a third type of structural complexity in living animals: that of the mechanical self-assembly of groups of distinct multicellular organisms into dynamical, functional structures.

LiveView: Dynamic Target-Centered MPI for View Synthesis

no code implementations11 Jul 2021 Sushobhan Ghosh, Zhaoyang Lv, Nathan Matsuda, Lei Xiao, Andrew Berkovich, Oliver Cossairt

Existing Multi-Plane Image (MPI) based view-synthesis methods generate an MPI aligned with the input view using a fixed number of planes in one forward pass.

Novel View Synthesis

Plot2Spectra: an Automatic Spectra Extraction Tool

1 code implementation6 Jul 2021 Weixin Jiang, Eric Schwenker, Trevor Spreadbury, Kai Li, Maria K. Y. Chan, Oliver Cossairt

In scientific literature, XANES/Raman data are usually plotted in line graphs which is a visually appropriate way to represent the information when the end-user is a human reader.

Optical Flow Estimation Semantic Segmentation

Improving Acquisition Speed of X-Ray Ptychography through Spatial Undersampling and Regularization

no code implementations20 May 2021 Prasan Shedligeri, Florian Schiffers, Semih Barutcu, Pablo Ruiz, Aggelos K Katsaggelos, Oliver Cossairt

To avoid the ill-posedness, we investigate the effect of regularizing the phase retrieval algorithm with image priors for various overlap ratios between the neighboring diffraction patterns.

Removing Blocking Artifacts in Video Streams Using Event Cameras

no code implementations12 May 2021 Henry H. Chopp, Srutarshi Banerjee, Oliver Cossairt, Aggelos K. Katsaggelos

In this paper, we propose EveRestNet, a convolutional neural network designed to remove blocking artifacts in videostreams using events from neuromorphic sensors.


Adaptive Illumination based Depth Sensing using Deep Superpixel and Soft Sampling Approximation

1 code implementation23 Mar 2021 Qiqin Dai, Fengqiang Li, Oliver Cossairt, Aggelos K Katsaggelos

The adaptive sparse depth sampling network is jointly trained with a fusion network of an RGB image and sparse depth, to generate optimal adaptive sampling masks.

EXSCLAIM! -- An automated pipeline for the construction of labeled materials imaging datasets from literature

1 code implementation19 Mar 2021 Eric Schwenker, Weixin Jiang, Trevor Spreadbury, Nicola Ferrier, Oliver Cossairt, Maria K. Y. Chan

Due to recent improvements in image resolution and acquisition speed, materials microscopy is experiencing an explosion of published imaging data.

Materials Imaging

E3D: Event-Based 3D Shape Reconstruction

1 code implementation9 Dec 2020 Alexis Baudron, Zihao W. Wang, Oliver Cossairt, Aggelos K. Katsaggelos

We first introduce an event-to-silhouette (E2S) neural network module to transform a stack of event frames to the corresponding silhouettes, with additional neural branches for camera pose regression.

3D Reconstruction 3D Shape Reconstruction

Disassemblable Fieldwork CT Scanner Using a 3D-printed Calibration Phantom

no code implementations12 Nov 2020 Florian Schiffers, Thomas Bochynek, Andre Aichert, Tobias Würfl, Michael Rubenstein, Oliver Cossairt

The use of computed tomography (CT) imaging has become of increasing interest to academic areas outside of the field of medical imaging and industrial inspection, e. g., to biology and cultural heritage research.

Computed Tomography (CT) Tomographic Reconstructions

Semantic Segmentation for Compound figures

no code implementations16 Dec 2019 Weixin Jiang, Eric Schwenker, Maria Chan, Oliver Cossairt

First, a subfigure label detector is built to extract the global layout information of the compound figure.

Information Retrieval Semantic Segmentation

Uncalibrated Deflectometry with a Mobile Device on Extended Specular Surfaces

no code implementations24 Jul 2019 Florian Willomitzer, Chia-Kai Yeh, Vikas Gupta, William Spies, Florian Schiffers, Marc Walton, Oliver Cossairt

We introduce a system and methods for the three-dimensional measurement of extended specular surfaces with high surface normal variations.

Event-driven Video Frame Synthesis

1 code implementation26 Feb 2019 Zihao W. Wang, Weixin Jiang, Kuan He, Boxin Shi, Aggelos Katsaggelos, Oliver Cossairt

Temporal Video Frame Synthesis (TVFS) aims at synthesizing novel frames at timestamps different from existing frames, which has wide applications in video codec, editing and analysis.

Deblurring Denoising +3

Adaptive Image Sampling using Deep Learning and its Application on X-Ray Fluorescence Image Reconstruction

3 code implementations27 Dec 2018 Qiqin Dai, Henry Chopp, Emeline Pouyet, Oliver Cossairt, Marc Walton, Aggelos K. Katsaggelos

We propose an XRF image inpainting approach to address the issue of long scanning time, thus speeding up the scanning process while still maintaining the possibility to reconstruct a high quality XRF image.

Binarization Image Inpainting +1

Compressive Holographic Video

no code implementations27 Oct 2016 Zihao Wang, Leonidas Spinoulas, Kuan He, Huaijin Chen, Lei Tian, Aggelos K. Katsaggelos, Oliver Cossairt

Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths from a single 2D image.


Toward Long Distance, Sub-diffraction Imaging Using Coherent Camera Arrays

no code implementations28 Oct 2015 Jason Holloway, M. Salman Asif, Manoj Kumar Sharma, Nathan Matsuda, Roarke Horstmeyer, Oliver Cossairt, Ashok Veeraraghavan

Recent advances in ptychography have demonstrated that one can image beyond the diffraction limit of the objective lens in a microscope.


A Framework for the Analysis of Computational Imaging Systems with Practical Applications

no code implementations8 Aug 2013 Kaushik Mitra, Oliver Cossairt, Ashok Veeraraghavan

Unfortunately, a detailed analysis of CI has proven to be a challenging problem because performance depends equally on three components: (1) the optical multiplexing, (2) the noise characteristics of the sensor, and (3) the reconstruction algorithm.


Cannot find the paper you are looking for? You can Submit a new open access paper.