Search Results for author: Farzad Kamalabadi

Found 6 papers, 2 papers with code

Dimensionality Collapse: Optimal Measurement Selection for Low-Error Infinite-Horizon Forecasting

1 code implementation27 Mar 2023 Helmuth Naumer, Farzad Kamalabadi

Implementations of both an approximate dynamic programming formulation and the proposed alternative are illustrated using an extended Kalman filter for state estimation, with results on simulated systems with limit cycles and chaotic behavior demonstrating a linear improvement in the CRLB as a function of the number of collapsing dimensions of the system.

Dimensionality Reduction Time Series

Low SNR Multiframe Registration for Cubesats

2 code implementations26 Feb 2022 Evan Widloski, Farzad Kamalabadi

We present a registration algorithm which jointly estimates motion and the ground truth image from a set of noisy frames under rigid, constant translation.

Translation

Spatial-temporal switching estimators for imaging locally concentrated dynamics

no code implementations19 Feb 2021 Parisa Karimi, Mark Butala, Zhizhen Zhao, Farzad Kamalabadi

The evolution of images with physics-based dynamics is often spatially localized and nonlinear.

Denoising

Quantification of mismatch error in randomly switching linear state-space models

no code implementations8 Dec 2020 Parisa Karimi, Zhizhen Zhao, Mark Butala, Farzad Kamalabadi

One can use these derivations to quantify the average performance of filters beforehand and decide which filter to run in operation to have the best performance in terms of estimation error and computation complexity.

Efficient model selection in switching linear dynamic systems by graph clustering

no code implementations8 Dec 2020 Parisa Karimi, Mark Butala, Zhizhen Zhao, Farzad Kamalabadi

The computation required for a switching Kalman Filter (SKF) increases exponentially with the number of system operation modes.

Clustering Graph Clustering +1

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