Search Results for author: Laura Waller

Found 26 papers, 6 papers with code

Noise2Image: Noise-Enabled Static Scene Recovery for Event Cameras

no code implementations1 Apr 2024 Ruiming Cao, Dekel Galor, Amit Kohli, Jacob L Yates, Laura Waller

Event cameras capture changes of intensity over time as a stream of 'events' and generally cannot measure intensity itself; hence, they are only used for imaging dynamic scenes.

Unified, Verifiable Neural Simulators for Electromagnetic Wave Inverse Problems

no code implementations31 Mar 2024 Charles Dove, Jatearoon Boondicharern, Laura Waller

Simulators based on neural networks offer a path to orders-of-magnitude faster electromagnetic wave simulations.

Wavefront Randomization Improves Deconvolution

no code implementations12 Feb 2024 Amit Kohli, Anastasios N. Angelopoulos, Laura Waller

The performance of an imaging system is limited by optical aberrations, which cause blurriness in the resulting image.

The Berkeley Single Cell Computational Microscopy (BSCCM) Dataset

1 code implementation9 Feb 2024 Henry Pinkard, Cherry Liu, Fanice Nyatigo, Daniel A. Fletcher, Laura Waller

Computational microscopy, in which hardware and algorithms of an imaging system are jointly designed, shows promise for making imaging systems that cost less, perform more robustly, and collect new types of information.

BiPMAP: A Toolbox for Predictions of Perceived Motion Artifacts on Modern Displays

no code implementations7 Dec 2022 Guanghan Meng, Dekel Galor, Laura Waller, Martin S. Banks

Presenting dynamic scenes without incurring motion artifacts visible to observers requires sustained effort from the display industry.

Dynamic Structured Illumination Microscopy with a Neural Space-time Model

no code implementations3 Jun 2022 Ruiming Cao, Fanglin Linda Liu, Li-Hao Yeh, Laura Waller

We propose a new method, Speckle Flow SIM, that uses static patterned illumination with moving samples and models the sample motion during data capture in order to reconstruct the dynamic scene with super-resolution.

Super-Resolution

Dancing under the stars: video denoising in starlight

no code implementations CVPR 2022 Kristina Monakhova, Stephan R. Richter, Laura Waller, Vladlen Koltun

To enable this, we develop a GAN-tuned physics-based noise model to more accurately represent camera noise at the lowest light levels.

Image Denoising Video Denoising

Sparse deep computer-generated holography for optical microscopy

no code implementations NeurIPS Workshop Deep_Invers 2021 Alex Liu, Yi Xue, Laura Waller

Computer-generated holography (CGH) has broad applications such as direct-view display, virtual and augmented reality, as well as optical microscopy.

Physics-Based Learned Diffuser for Single-shot 3D Imaging

no code implementations NeurIPS Workshop Deep_Invers 2021 Eric Markley, Fanglin Linda Liu, Michael Kellman, Nick Antipa, Laura Waller

A diffuser in the Fourier space of an imaging system can encode 3D fluorescence intensity information in a single-shot 2D measurement, which is then recovered by a compressed sensing algorithm.

Untrained networks for compressive lensless photography

1 code implementation13 Mar 2021 Kristina Monakhova, Vi Tran, Grace Kuo, Laura Waller

We demonstrate our untrained approach on lensless compressive 2D imaging as well as single-shot high-speed video recovery using the camera's rolling shutter, and single-shot hyperspectral imaging.

Compressive Sensing

Spectral DiffuserCam: lensless snapshot hyperspectral imaging with a spectral filter array

1 code implementation15 Jun 2020 Kristina Monakhova, Kyrollos Yanny, Neerja Aggarwal, Laura Waller

Hyperspectral imaging is useful for applications ranging from medical diagnostics to agricultural crop monitoring; however, traditional scanning hyperspectral imagers are prohibitively slow and expensive for widespread adoption.

How to do Physics-based Learning

1 code implementation27 May 2020 Michael Kellman, Michael Lustig, Laura Waller

The goal of this tutorial is to explain step-by-step how to implement physics-based learning for the rapid prototyping of a computational imaging system.

Memory-efficient Learning for Large-scale Computational Imaging

no code implementations NeurIPS Workshop Deep_Invers 2019 Michael Kellman, Kevin Zhang, Jon Tamir, Emrah Bostan, Michael Lustig, Laura Waller

Critical aspects of computational imaging systems, such as experimental design and image priors, can be optimized through deep networks formed by the unrolled iterations of classical model-based reconstructions (termed physics-based networks).

Experimental Design Super-Resolution

Memory-efficient Learning for Large-scale Computational Imaging -- NeurIPS deep inverse workshop

no code implementations11 Dec 2019 Michael Kellman, Jon Tamir, Emrah Boston, Michael Lustig, Laura Waller

Computational imaging systems jointly design computation and hardware to retrieve information which is not traditionally accessible with standard imaging systems.

Experimental Design Super-Resolution

Unrolled, model-based networks for lensless imaging

no code implementations NeurIPS Workshop Deep_Invers 2019 Kristina Monakhova, Joshua Yurtsever, Grace Kuo, Nick Antipa, Kyrollos Yanny, Laura Waller

Various reconstruction methods are explored, on a scale from classic iterative approaches (based on the physical imaging model) to deep learned methods with many learned parameters.

Learned reconstructions for practical mask-based lensless imaging

no code implementations30 Aug 2019 Kristina Monakhova, Joshua Yurtsever, Grace Kuo, Nick Antipa, Kyrollos Yanny, Laura Waller

In this work, we address these limitations using a bounded-compute, trainable neural network to reconstruct the image.

Rolling Shutter Correction

Video from Stills: Lensless Imaging with Rolling Shutter

1 code implementation30 May 2019 Nick Antipa, Patrick Oare, Emrah Bostan, Ren Ng, Laura Waller

Here, we propose using multiplexing optics to spatially compress the scene, enabling information about the whole scene to be sampled from a row of sensor pixels, which can be read off quickly via a rolling shutter CMOS sensor.

Data-Driven Design for Fourier Ptychographic Microscopy

no code implementations8 Apr 2019 Michael Kellman, Emrah Bostan, Michael Chen, Laura Waller

In this work, we learn LED source pattern designs that compress the many required measurements into only a few, with negligible loss in reconstruction quality or resolution.

Experimental Design Retrieval +1

Physics-based Learned Design: Optimized Coded-Illumination for Quantitative Phase Imaging

no code implementations10 Aug 2018 Michael R. Kellman, Emrah Bostan, Nicole Repina, Laura Waller

Our method incorporates both the physics of the measurement scheme and the non-linearity of the reconstruction algorithm into the design problem.

Experimental Design Retrieval

Learning-based Image Reconstruction via Parallel Proximal Algorithm

no code implementations29 Jan 2018 Emrah Bostan, Ulugbek S. Kamilov, Laura Waller

In the past decade, sparsity-driven regularization has led to advancement of image reconstruction algorithms.

Image Reconstruction

DiffuserCam: Lensless Single-exposure 3D Imaging

no code implementations5 Oct 2017 Nick Antipa, Grace Kuo, Reinhard Heckel, Ben Mildenhall, Emrah Bostan, Ren Ng, Laura Waller

We demonstrate a compact and easy-to-build computational camera for single-shot 3D imaging.

Structured illumination microscopy with unknown patterns and a statistical prior

no code implementations26 Oct 2016 Li-Hao Yeh, Lei Tian, Laura Waller

Structured illumination microscopy (SIM) improves resolution by down-modulating high-frequency information of an object to fit within the passband of the optical system.

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