MSR Thesis Defense
Robotics Institute,
Carnegie Mellon University

Automated Design of Special Purpose Dexterous Manipulators

NSH 3001

Grasp planning and motion synthesis for dexterous manipulation tasks are traditionally done given a pre-existing kinematic model for the robotic hand. In this thesis, we introduce a framework for automatically designing hand topologies best suited for manipulation tasks given high level objectives as input. Our goal is to ultimately design a program that is able [...]

MSR Thesis Defense
Robotics Institute,
Carnegie Mellon University

Toward Invariant Visual Inertial State Estimation using Information Sparsification

1305 Newell Simon Hall

Abstract In this work, we address two current challenges in real-time visual-inertial odometry (VIO) systems - efficiency and accuracy. To this end, we present a novel approach to tightly couple visual and inertial measurements in a fixed-lag VIO framework using information sparsification. To bound computational complexity, fixed-lag smoothers perform marginalization of variables but consequently deteriorate accuracy and [...]

MSR Thesis Defense
PhD Student
Robotics Institute,
Carnegie Mellon University

Generative Point Cloud Modeling with Gaussian Mixture Models for Multi-Robot Exploration

NSH 1305

Autonomous exploration in rich 3D environments requires the construction and maintenance of a representation derived from accumulated 3D observations. Volumetric models, which are commonly employed to enable joint reasoning about occupied and free space, scale poorly with the size of the environment. Techniques employed to mitigate this scaling include hierarchical discretization, learning local data summarizations [...]

MSR Thesis Defense
Robotics Institute,
Carnegie Mellon University

Integrating Model-based Planning with Skill learning for Mobile Manipulation

NSH 3002

With an ever-growing demand to automate different day-to-day activities, the task of autonomous manipulation using articulated robots has gained serious traction lately. In this regard, motion planning for manipulation is one of the highly researched topics. The Motion planning for manipulation is often cast as either a model-based planning problem or a machine learning problem. However, both of these [...]

MSR Thesis Defense
Robotics Institute,
Carnegie Mellon University

In-Field Robotic Leaf Grasping and Automated Crop Spectroscopy

NSH 1305

Agricultural robotics is a growing field of intelligent automation that is proving to drastically increase the speed and reliability of in-field tasks such as precision seed planting, harvesting, field mapping, and crop monitoring. More specifically, plant breeders are beginning to use robotic systems to record the physical traits of crops throughout the growing season at [...]

MSR Thesis Defense
Robotics Institute,
Carnegie Mellon University

Soft-matter Artificial Muscle by Electrochemical Surface Oxidation of Liquid Metal

Scaife Hall 224

Natural muscles, a result of more than 500 millions years of evolution, are elegant machines that generate force and motion electrochemically. The brief history of robotics does not have the luxury of millions of years to reverse-engineer many aspects of life. The development of artificial muscles therefore seeks to build more muscle-like actuators for robots. [...]

MSR Thesis Defense
Extern
Robotics Institute,
Carnegie Mellon University

Radiation Source Localization using a Gamma-ray Camera

GHC 6501

Radiation source localization is a common and critical task across applications such as nuclear facility decommissioning, radioactive disaster response, and security. Traditional count-based sensors (e.g. Geiger counters) infer range to the source based on the observed number of gamma photons, expected source strength, and assumed intermediate attenuation from the environment. In cluttered 3D settings, such [...]

MSR Thesis Defense
Robotics Institute,
Carnegie Mellon University

Improving Imitation Learning through Efficient Expert Querying

GHC 4405

Learning from demonstration is an intuitive approach to encoding complex behaviors in autonomous agents.  Learners have shown success in challenging tasks like autonomous driving, aerial obstacle avoidance, and information gathering, through observation and mimicry alone. State of the art algorithms like Dataset Aggregation (DAgger) have made significant advances over traditional behavior cloning, demonstrating strong theoretical [...]

MSR Thesis Defense
PhD Student
Robotics Institute,
Carnegie Mellon University

Failure Is an Option: How the Severity of Robot Errors Affects Human-Robot Interactions

GHC 4405

Abstract: Just as humans are imperfect, even the best of robots will eventually fail at performing a task. The likelihood of failure increases as robots expand their roles in our lives. Although task failure is a common problem in robotics and human-robot interaction (HRI), there has been little research investigating human tolerance to said failures, [...]

MSR Thesis Defense
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Avi Rudich

1305 Newell Simon Hall

Title: Kinematic Analysis of 3D Printed Flexible Delta Robots   Abstract: Flexible Delta robots show significant promise for use in a wide array of manipulation tasks.  They are simple to design and manufacture, and they maintain a high level of repeatability and precision in open loop control.  This thesis analyzes the kinematic properties of flexible [...]

MSR Thesis Defense
PhD Student
Robotics Institute,
Carnegie Mellon University

Learning Parameter-Efficient Quadrotor Dynamics Models

NSH 4305

Abstract: Operation of quadrotors through high-speed, high-acceleration maneuvers remains a challenging problem due to the complex aerodynamics in this regime. While standard physical models suffice for control in near-hover conditions, the primary challenge in executing aggressive trajectories is obtaining a model for the quadrotor dynamics that adequately models the aerodynamic effects present, including lift, drag, [...]

MSR Thesis Defense
PhD Student
Robotics Institute,
Carnegie Mellon University

Human-in-the-loop Model Creation

GHC 7101

Abstract: Deep generative models make visual content creation more accessible to novice users by automating the synthesis of diverse, realistic content based on a collected dataset. However, the current machine learning approaches miss several elements of the creative process -- the ability to synthesize things that go far beyond the data distribution and everyday experience, [...]

MSR Thesis Defense
PhD Student
Robotics Institute,
Carnegie Mellon University

Learning Models and Cost Functions from Unlabeled Data for Off-Road Driving

GHC 8102

Abstract: Off-road driving is an important instance of navigation in unstructured environments, which is a key robotics problem with many applications, such as exploration, agriculture, disaster response and defense. The key challenge in off-road driving is to be able to take in high dimensional, multi-modal sensing data and use it to make intelligent decisions on [...]

MSR Thesis Defense
MSR Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Chonghyuk Song

GHC 6501

Title: Total-Recon: Deformable Scene Reconstruction for Embodied View Synthesis Abstract: We explore the task of embodied view synthesis from monocular videos of deformable scenes. Given a minute-long RGBD video of people interacting with their pets, we render the scene from novel camera trajectories derived from in-scene motion of actors: (1) egocentric cameras that simulate the point [...]

MSR Thesis Defense
MSR Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Shivam Duggal

NSH 1109

Title: Learning Single Image 3D Reconstruction from Single-View Image Collections Abstract We present a framework for learning 3D object shapes and dense cross-object 3D correspondences from just an unaligned category-specific image collection. The 3D shapes are generated implicitly as deformations to a category-specific signed distance field and are learned in an unsupervised manner solely from unaligned [...]

MSR Thesis Defense
PhD Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Himangi Mittal

GHC 6115

Title: Audio-Visual State-Aware Representation Learning from Interaction-Rich Data Abstract In robotics and augmented reality, the input to the agent is a long stream of video from the first-person or egocentric point of view. Recently, there have been significant efforts to capture humans from their first-person/egocentric view interacting with their own environment as they go about [...]

MSR Thesis Defense
MSR Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Ken Liu

NSH 3305

Title: On Privacy and Personalization in Federated Learning: Analyses and Applications Abstract: Recent advances in machine learning often rely on large and centralized datasets. However, curating such data can be challenging when they hold private information, and policies/regulations may mandate that they remain distributed across data silos (e.g. mobile devices or hospitals). Federated learning (FL) [...]

MSR Thesis Defense
MSR Student / Teaching Assistant
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Haolun Zhang

NSH 3305

Title: Seeing in 3D: Towards Generalizable 3D Visual Representations for Robotic Manipulation Abstract: Despite the recent progress in computer vision and deep learning, robot perception remains a tremendous challenge due to the variations of the objects and the scenes in manipulation tasks. Ideally, a robot trying to manipulate a new object should be able to [...]

MSR Thesis Defense
MSR Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Muyang Li

NSH 4305

Title: Efficient Spatially Sparse Inference for Conditional GANs and Diffusion Models Abstract: During image editing, existing deep generative models tend to re-synthesize the entire output from scratch, including the unedited regions. This leads to a significant waste of computation, especially for minor editing operations. In this work, we present Spatially Sparse Inference (SSI), a general-purpose technique [...]

MSR Thesis Defense
MSR Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Rohan Zeng

NSH 3305

Title: Spectral Unmixing and Mapping of Coral Reef Benthic Cover Abstract: Coral reefs are important to the global ecosystem and the local communities and wildlife that rely on the habitat they create. However, coral reefs are also in critical and rapid decline: reefs have degraded over recent decades and what remains is at increasing risk [...]

MSR Thesis Defense
MSR Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Ashwin Misra

NSH 1109

Title: Learn2Plan: Learning variable ordering heuristics for scalable task planning Abstract: Traditional approaches to planning attempt to transform a system into a goal state by applying specific actions in a specific order. In these methods, there is an exponential search space due to considering many possible actions at every decision point. Hierarchical Task Networks use incremental [...]

MSR Thesis Defense
PhD Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Andrew Jong

Title: Robot Information Gathering for Dynamic Systems in Wildfire Scenarios Abstract: The monitoring of complex dynamic systems, such as those encountered in disaster response, search and rescue, wildlife conservation, and environmental monitoring, presents the fundamental challenge of how to track efficiently with limited resources and partial observability. This thesis presents algorithms and techniques for robotic [...]

MSR Thesis Defense
MSR Student
Robotics Institute,
Carnegie Mellon University

MSR Thesis Talk: Erin Wong

GHC 4405

Title: Edge Detection by Centimeter Scale Low-Cost Mobile Robots Abstract: In Search and Rescue (SaR) efforts after natural disasters like earthquakes, the primary focus is to find and rescue people in building rubble. These rescue efforts could put first responders at risk and are slow due to the unstable nature of the environment. Robotic solutions [...]