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Houman Masnavi

10 accepted papers

2024

Differentiable-Optimization Based Neural Policy for Occlusion-Aware Target Tracking

RA-L 2024

We propose a learned probabilistic neural policy for safe, occlusion-free target tracking. The core novelty of our work stems from the structure of our policy network that combines generative modeling based on Conditional Variational Autoencoder (CVAE) with differentiable optimization layers. The we

Cited by 3SourcecodeScholar
2024

PRIEST: Projection Guided Sampling-Based Optimization for Autonomous Navigation

RA-L 2024

Efficient navigation in unknown and dynamic environments is crucial for expanding the application domain of mobile robots. The core challenge stems from the non-availability of a feasible global path for guiding optimization-based local planners. As a result, existing local planners often get trappe

Cited by 11SourcecodeScholar
2023

VACNA: Visibility-Aware Cooperative Navigation With Application in Inventory Management

RA-L 2023

This letter presents an online trajectory planning algorithm for an Unmanned Aerial Vehicle (UAV) to autonomously scan warehouse racks for inventory management. Our main motivation is to make small-sized UAVs with limited computing and sensing hardware capable of reliably performing the scanning tas

Cited by 8SourceScholar
2022

Multi-Modal Model Predictive Control Through Batch Non-Holonomic Trajectory Optimization: Application to Highway Driving

RA-L 2022

Standard Model Predictive Control (MPC) or trajectory optimization approaches perform only a local search to solve a complex non-convex optimization problem. As a result, they cannot capture the multi-modal characteristic of human driving. A global optimizer can be a potential solution but is comput

Cited by 34SourcecodeScholar
2022

Visibility-Aware Navigation With Batch Projection Augmented Cross-Entropy Method Over a Learned Occlusion Cost

RA-L 2022

We present two real-time trajectory optimizers based on the Cross-Entropy Method for visibility-aware navigation. The two approaches differ in handling inequality constraints stemming from bounds on motion derivatives, collision avoidance, tracking error, etc. Our first optimizer augments the inequa

Cited by 22SourceScholar
2021

Embedded Hardware Appropriate Fast 3D Trajectory Optimization for Fixed Wing Aerial Vehicles by Leveraging Hidden Convex Structures

IROS 2021poster

Most commercially available fixed-wing aerial vehicles (FWV) can carry only small, lightweight computing hardware such as Jetson TX2 onboard. Solving non-linear trajectory optimization on these computing resources is computationally challenging even while considering only the kinematic motion model.…

Cited by 5SourceScholar
2021

GPU Accelerated Convex Approximations for Fast Multi-Agent Trajectory Optimization

RA-L 2021

In this letter, we present a computationally efficient trajectory optimizer that can exploit GPUs to jointly compute trajectories of tens of agents in under a second. At the heart of our optimizer is a novel reformulation of the non-convex collision avoidance constraints that reduces the core comput

Cited by 15SourcecodeScholar
2020

A Novel Trajectory Optimization for Affine Systems: Beyond Convex-Concave Procedure

IROS 2020poster

Trajectory optimization problems under affine motion model and convex cost function are often solved through the convex-concave procedure (CCP), wherein the non-convex collision avoidance constraints are replaced with its affine approximation. Although mathematically rigorous, CCP has some critical…

Cited by 14SourceScholar