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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 11SourceScholar
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 77SourceScholar
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 21SourceScholar