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Hosik Chae

3 accepted papers

2023

Residual Physics Learning and System Identification for Sim-to-real Transfer of Policies on Buoyancy Assisted Legged Robots

IROS 2023poster

The light and soft characteristics of Buoyancy Assisted Lightweight Legged Unit (BALLU) robots have a great potential to provide intrinsically safe interactions in environments involving humans, unlike many heavy and rigid robots. However, their unique and sensitive dynamics impose challenges to obt…

Cited by 24Source ↗Scholar ↗
2020

ALPHRED: A Multi-Modal Operations Quadruped Robot for Package Delivery Applications

RA-L 2020

Modern quadruped robots are more capable than ever before at performing robust, dynamic locomotion over a variety of terrains, but are still mostly used as mobile inspection platforms. This paper presents ALPHRED version 2, a multi-modal operations quadruped robot designed for both locomotion and ma

Cited by 77Source ↗Scholar ↗
2018

Stable, Autonomous, Unknown Terrain Locomotion for Quadrupeds Based on Visual Feedback and Mixed-Integer Convex Optimization

IROS 2018poster

This paper presents a complete motion planning approach for quadruped locomotion across an unknown terrain using a framework based on mixed-integer convex optimization and visual feedback. Vision data is used to find convex polygons in the surrounding environment, which acts as potentially feasible…

Cited by 21Source ↗Scholar ↗