Search Results for author: Biqiang Mu

Found 9 papers, 2 papers with code

Consistent and Asymptotically Statistically-Efficient Solution to Camera Motion Estimation

1 code implementation2 Mar 2024 Guangyang Zeng, Qingcheng Zeng, Xinghan Li, Biqiang Mu, Jiming Chen, Ling Shi, Junfeng Wu

Given 2D point correspondences between an image pair, inferring the camera motion is a fundamental issue in the computer vision community.

Motion Estimation

Kernel-based Regularized Iterative Learning Control of Repetitive Linear Time-varying Systems

no code implementations7 Mar 2023 Xian Yu, Xiaozhu Fang, Biqiang Mu, Tianshi Chen

For data-driven iterative learning control (ILC) methods, both the model estimation and controller design problems are converted to parameter estimation problems for some chosen model structures.

Consistent and Asymptotically Efficient Localization from Range-Difference Measurements

no code implementations7 Feb 2023 Guangyang Zeng, Biqiang Mu, Ling Shi, Jiming Chen, Junfeng Wu

Based on the preliminary consistent location estimate, a one-step GN iteration suffices to achieve the same asymptotic property as the ML estimator.

On Embeddings and Inverse Embeddings of Input Design for Regularized System Identification

no code implementations27 Sep 2022 Biqiang Mu, Tianshi Chen, He Kong, Bo Jiang, Lei Wang, Junfeng Wu

For the emerging regularized system identification, the study on input design has just started, and it is often formulated as a non-convex optimization problem that minimizes a scalar measure of the Bayesian mean squared error matrix subject to certain constraints, and the state-of-art method is the so-called quadratic mapping and inverse embedding (QMIE) method, where a time domain inverse embedding (TDIE) is proposed to find the inverse of the quadratic mapping.

Asymptotic Theory for Regularized System Identification Part I: Empirical Bayes Hyper-parameter Estimator

no code implementations25 Sep 2022 Yue Ju, Biqiang Mu, Lennart Ljung, Tianshi Chen

Regularized system identification is the major advance in system identification in the last decade.

CPnP: Consistent Pose Estimator for Perspective-n-Point Problem with Bias Elimination

1 code implementation13 Sep 2022 Guangyang Zeng, ShiYu Chen, Biqiang Mu, Guodong Shi, Junfeng Wu

The Perspective-n-Point (PnP) problem has been widely studied in both computer vision and photogrammetry societies.

Global and Asymptotically Efficient Localization from Range Measurements

no code implementations31 Mar 2022 Guangyang Zeng, Biqiang Mu, Jiming Chen, Zhiguo Shi, Junfeng Wu

In terms of whether the variance of measurement noises is known or not, we propose the Bias-Eli estimator (which involves solving a generalized trust region subproblem) and the Noise-Est estimator (which is obtained by solving a convex problem), respectively.

Position

Identification of Switched Linear Systems: Persistence of Excitation and Numerical Algorithms

no code implementations6 Dec 2021 Biqiang Mu, Tianshi Chen, Changming Cheng, Er-Wei Bai

The main contribution is a much weaker condition on the regressor to be persistently exciting that guarantees the uniqueness of the parameter sets and also provides new insights in understanding the relation among different subsystems.

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