Ethan J. Tira-Thompson

Learn More
We describe complementary iconic and symbolic representations for parsing the visual world. The iconic pixmap representation is operated on by an extensible set of " visual routines " (Ullman, 1984; Forbus et al., 2001). A symbolic representation, in terms of lines, ellipses, blobs, etc., is extracted from the iconic encoding, manipulated algebraically ,(More)
Hand-eye systems combine computer vision with kinematics and dynamics calculations to achieve dexterous manipulation. These versatile platforms for teaching robotics principles have not been widely used in undergraduate laboratories due to cost. We describe a new hand-eye system constructed from Robotis Dynamixel servos, a USB interface module, and a(More)
—The introduction of digital microcontrollers into " hobby " servos opens new doors for consumer and educational robotics. However, the new operational modes, parameters, and sensory feedback also add complexity. This paper will analyze the capabilities of these servos, and describe methods of calibration and motion modeling for accurate planning and(More)
Neuromorphic learning and cognitive approaches are facilitated by allowing high levels of abstraction in computing. When the Sony AIBO entertainment robot made its commercial debut in 1999, an initial run of 3,000 were snapped up by Japanese consumers in under 20 minutes. Another 2,000 earmarked for the American market sold out within four days. Since then,(More)
A successful collaboration between Spelman College and Carnegie Mellon University led to an NSF-funded Broadening Participation in Computing project to set up robotics education laboratories and introduce undergraduate instruction in cognitive robotics at three other Historically Black Colleges and Universities (HBCUs). We give a brief overview of cognitive(More)