BikeGesture: User Elicitation and Performance of Micro Hand Gesture as Input for Cycling

BikeGesture: User Elicitation and Performance of Micro Hand Gesture as Input for Cycling

by | Feb 5, 2017 | 2017, Embedded Input, Karthik Ramani, Publications, Recent Publications, Sang Ho Yoon, TANGIBLE, EMBEDDED & EMBODIED INTERFACES, Yanke Tan

Abstract: The use of hand gestures has a potential as a promising input metaphor. Wearables like smart textile and data gloves can provide hand gesture recognition to potentially replace, augment or improve existing input methods. Although recent bikes provide...
VizScribe: A visual analytics approach to understand designer behavior

VizScribe: A visual analytics approach to understand designer behavior

by | Jan 16, 2017 | 2017, Design Collaboration, Design Learn, DESIGN METHOD, Design Representation, Karthik Ramani, Recent Publications, Senthil Chandrasegaran

Design protocol analysis is a technique to understand designers’ cognitive processes by analyzing sequences of observations on their behavior. These observations typically use audio, video, and transcript data in order to gain insights into the designer’s...
Modeling Cumulative Arm Fatigue in Mid-Air Interaction based on Perceived Exertion and Kinetics of Arm Motion

Modeling Cumulative Arm Fatigue in Mid-Air Interaction based on Perceived Exertion and Kinetics of Arm Motion

by | Jan 14, 2017 | 2017, Karthik Ramani, Mid-air Interaction, Publications, Recent Publications, Spatial Analytics, Sujin Jang

Quantifying cumulative arm muscle fatigue is a critical factor in understanding, evaluating, and optimizing user experience during prolonged mid-air interaction. A reasonably accurate estimation of fatigue requires an estimate of an individual’s strength....
WireFab: Mix-Dimensional Modeling and Fabrication for 3D Mesh Models

WireFab: Mix-Dimensional Modeling and Fabrication for 3D Mesh Models

by | Dec 30, 2016 | 2017, DESIGN METHOD, Fabrication, Jeff Alperovich, Jing Bai, Karthik Ramani, Min Liu, Recent Publications, TANGIBLE, EMBEDDED & EMBODIED INTERFACES, Tangibles, Yuanzhi Cao, Yunbo Zhang

We propose WireFab, a rapid modeling and prototyping system that uses bent metal wires as the structure framework. WireFab approximates both the skeletal articulation and the skin appearance of the corresponding virtual skin meshes, and it allows users to personalize...
Window-Shaping: 3D Design Ideation by Creating on, Borrowing from, and Looking at the Physical World

Window-Shaping: 3D Design Ideation by Creating on, Borrowing from, and Looking at the Physical World

by | Dec 26, 2016 | 2017, DESIGN METHOD, HUMAN SHAPE INTERACTION, Karthik Ramani, Ke Huo, Multi-touch Interaction, Recent Publications, Vinayak

We present, Window-Shaping, a tangible mixed-reality (MR) interaction metaphor for design ideation that allows for the direct creation of 3D shapes on and around physical objects. Using the sketch-and-inflate scheme, our metaphor enables quick design of dimensionally...