Author name cluster

Mas Ma

Possible papers associated with this exact author name in Arrow. This page groups case-insensitive exact name matches and is not a full identity disambiguation profile.

2 papers

1 author row

IROS Conference 2023 Conference Paper

Object-Oriented Option Framework for Robotics Manipulation in Clutter

Jing-Cheng Pang
Si-Hang Yang
Xiong-Hui Chen
Xinyu Yang
Yang Yu 0001
Mas Ma
Ziqi Guo
Howard Yang

Domestic service robots are becoming increasingly popular due to their ability to help people with household tasks. These robots often encounter the challenge of manipulating objects in cluttered environments (MoC), which is difficult due to the complexity of effective planning and control. Previous solutions involved designing specific action primitives and planning paradigms. However, the pre-coded action primitives can limit the agility and task-solving scope of robots. In this paper, we propose a general approach for MoC called the Object-Oriented Option Framework (O3F), which uses the option framework (OF) to learn planning and control. The standard OF discovers options from scratch based on reinforcement learning, which can lead to collapsed options and hurt learning. To address this limitation, O3F introduces the concept of an object-oriented option space for OF, which focuses specifically on object movement and overcomes the challenges associated with collapsed options. Based on this, we train an object-oriented option planner to determine the option to execute and a universal object-oriented option executor to complete the option. Simulation experiments on the Ginger XR1 robot and robot arm show that O3F is generally applicable to various types of robot and manipulation tasks. Furthermore, O3F achieves success rates of 72. 4% and 90% in grasping and object collecting tasks, respectively, significantly outperforming baseline methods.

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ICRA Conference 2019 Conference Paper

A Fog Robotic System for Dynamic Visual Servoing

Nan Tian
Ajay Kumar Tanwani
Jinfa Chen
Mas Ma
Robert Zhang 0001
Bill Huang
Ken Goldberg
Somayeh Sojoudi

Cloud Robotics is a paradigm where multiple robots are connected to cloud services via Internet to access “unlimited” computation power, at the cost of network communication. However, due to limitations such as network latency and variability, it is difficult to control dynamic, human compliant service robots directly from the cloud. In this work, we combine cloud robotics with an agile edge device to build a Fog Robotic system by leveraging an asynchronous protocol with a “heartbeat” signal. We use the system to enable robust teleoperation of a dynamic self-balancing robot from the cloud. We use the system to pick up boxes from static locations, a task commonly performed in warehouse logistics. To make cloud teleoperation more intuitive and efficient, we program a cloud-based image based visual servoing (IBVS) module to automatically assist the cloud teleoperator during the object pickups. Visual feedbacks, including apriltag recognition and tracking, are performed in the cloud to emulate a Fog Robotic object recognition system for IBVS. We demonstrate the feasibility of a dynamic real-time automation system using this cloud-edge hybrid design, which opens up possibilities of deploying dynamic robotic control with deep-learning recognition systems in Fog Robotics. Finally, we show that Fog Robotics enables the self-balancing service robot to pick up a box automatically from a person under unstructured environments.

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