Student Talks
Perceptually Valid Dynamics for Smiles and Blinks
Event Location: NSH 3002Abstract: Human observers are particularly adept at detecting anomalies in realistic computer-generated (CG) facial animations. With an increased demand for CG characters in education and entertainment applications, it is important to animate accurate, realistic facial expressions. In this thesis proposal, we develop a framework to explore representations of two key facial expressions: [...]
Cross-cultural believability of robot characters
Event Location: GHC 4405Abstract: Believability of characters is an objective in literature, theater, animation, film, and other media. Virtual characters, believable as sharing their ethnic background with users, improve their perception of the character and, sometimes, even their task performance. Social scientists refer to this phenomenon as homophily---humans tend to associate and bond with similar [...]
Hybrid Markov / Non-Markov Localization for Long-Term Autonomy of Mobile Robots in Varying Indoor Environments
Event Location: NSH 1109Abstract: There is considerable interest in having robots continue to perform autonomously over time in human environments despite changes in their environment. Most state-of-the-art robot localization and mapping approaches assume that the world can be represented as a static map. However, real human environments are not static - some areas like corridors [...]
Lightweight Robotic Excavation
Event Location: GHC 8102Abstract: Planetary excavators face unique and extreme engineering constraints relative to terrestrial counterparts. In space missions mass is always at a premium because it is the main driver behind launch costs. Lightweight operation, due to low mass and reduced gravity, hinders excavation and mobility by reducing the forces a robot can effect [...]
The Design of Control Architectures for Force-controlled Humanoids Performing Dynamic Tasks
Event Location: NSH 1305Abstract: This talk is about improving the process of designing controllers for humanoid robots. It describes tools we designed that enable us to iterate faster when experimenting with control systems that aggregate multiple model based sub-controllers. Many model based humanoid controllers can be considered approximations to a fully general, but computationally intractable, [...]
Robot Motion for Seamless Human-Robot Collaboration
Event Location: GHC 8102Abstract: The goal of this thesis is to enable robots to produce motion that is suitable for human-robot collaboration and co-existence. Most motion in robotics is purely functional: industrial robots move to package parts, vacuuming robots move to suck dust, and personal robots move to clean up a dirty table. This type [...]
Interactive Learning for Sequential Decisions and Predictions
Event Location: NSH 1305Abstract: Sequential prediction problems arise commonly in many areas of robotics and information processing: e.g., predicting a sequence of actions over time to achieve a goal in a control task, interpreting an image through a sequence of local image patch classifications, or translating speech to text through an iterative decoding procedure. Learning [...]
Inference Machines: Parsing Scenes via Iterated Predictions
Event Location: NSH 1305Abstract: Extracting a rich representation of an environment from visual sensor readings can benefit many tasks in robotics, e.g., path planning, mapping, and object manipulation. While important progress has been made, it remains a difficult problem to effectively parse entire scenes, i.e., to recognize semantic objects, man-made structures, and landforms. This process [...]
Detecting Object Instances Without Discriminative Features
Event Location: NSH 1305Abstract: In this thesis, we study the topic of detecting object instances which lack discriminative features in scenes with severe clutter and occlusions. Our work focuses on the three key areas: (1) objects that have ambiguous features, (2) objects where discriminative point-based features cannot be reliably extracted, and (3) occlusions. Current approaches [...]
Physics-Based Manipulation Planning in Cluttered Human Environments
Event Location: NSH 1305Abstract: This thesis presents a series of planners and algorithms for manipulation in cluttered human environments. The focus is on using physics-based predictions, particularly for pushing operations, as an effective way to address the manipulation challenges posed by these environments. We introduce push-grasping, a physics-based action to grasp an object first by pushing it and [...]