Search Results for author: Wenhao Luo

Found 8 papers, 1 papers with code

A Depth-Adaptive Filtering Method for Effective GPR Tree Roots Detection in Tropical Area

no code implementations30 May 2023 Wenhao Luo, Yee Hui Lee, Mohamed Lokman Mohd Yusof, Abdulkadir C. Yucel

The technique is successfully validated using SFCW GPR data from actual sites in a tropical area with different soil moisture levels, and the two-dimensional (2D) radar map of subsurface root systems is highly improved compared to existing methods.

GPR

Risk-aware Safe Control for Decentralized Multi-agent Systems via Dynamic Responsibility Allocation

no code implementations22 May 2023 Yiwei Lyu, Wenhao Luo, John M. Dolan

Decentralized control schemes are increasingly favored in various domains that involve multi-agent systems due to the need for computational efficiency as well as general applicability to large-scale systems.

Autonomous Driving Computational Efficiency

Sample-efficient Safe Learning for Online Nonlinear Control with Control Barrier Functions

no code implementations29 Jul 2022 Wenhao Luo, Wen Sun, Ashish Kapoor

In particular, the framework 1) extends control barrier functions (CBFs) in a stochastic setting to achieve provable high-probability safety under uncertainty during model learning and 2) integrates an optimism-based exploration strategy to efficiently guide the safe exploration process with learned dynamics for \emph{near optimal} control performance.

Decision Making Reinforcement Learning (RL) +1

Accurate Tree Roots Positioning and Sizing over Undulated Ground Surfaces by Common Offset GPR Measurements

no code implementations27 May 2022 Wenhao Luo, Yee Hui Lee, Lai Fern Ow, Mohamed Lokman Mohd Yusof, Abdulkadir C. Yucel

Normally, the ground surface above the tree roots is assumed to be flat, and standard processing methods based on hyperbolic fitting are applied to the hyperbolae reflection patterns of tree roots for detection purposes.

GPR

Dual-Cross-Polarized GPR Measurement Method for Detection and Orientation Estimation of Shallowly Buried Elongated Object

no code implementations17 May 2022 Hai-Han Sun, Yee Hui Lee, Wenhao Luo, Lai Fern Ow, Mohamed Lokman Mohd Yusof, Abdulkadir C. Yucel

In addition, we present a dual-cross-polarized orientation estimation (DCPOE) algorithm to estimate the object orientation from the two cross-polarized data.

GPR Object

SFCW GPR tree roots detection enhancement by time frequency analysis in tropical areas

no code implementations6 Apr 2022 Wenhao Luo, Yee Hui Lee, Abdulkadir C. Yucel, Genevieve Ow, Mohamed Lokman Mohd Yusof

In high moisture tropical areas such as Singapore, tree fall due to root rot can cause loss of lives and properties.

GPR

Active Learning with Gaussian Processes for High Throughput Phenotyping

1 code implementation21 Jan 2019 Sumit Kumar, Wenhao Luo, George Kantor, Katia Sycara

A looming question that must be solved before robotic plant phenotyping capabilities can have significant impact to crop improvement programs is scalability.

Active Learning Gaussian Processes +2

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