Shape Structuralizer: Design, Fabrication, and User-driven Iterative Refinement of 3D Mesh Models

Shape Structuralizer: Design, Fabrication, and User-driven Iterative Refinement of 3D Mesh Models

Subramanian Chidambaram, Yunbo Zhang, Venkatraghavan Sundararajan, Niklas Elmqvist, and Karthik Ramani
ACM SIGCHI Conference on Human Factors in Computing Systems (CHI 2019), May 4–9, 2019, Glasgow, Scotland, UK

Current Computer-Aided Design (CAD) tools lack proper support for guiding novice users towards designs ready for fabrication. We propose Shape Structuralizer (SS), an interactive design support system that repurposes surface models into structural...

Deep Learning 3D Shapes Using ALT-AZ Anisotropic 2-Sphere Convolution

Deep Learning 3D Shapes Using ALT-AZ Anisotropic 2-Sphere Convolution

Min Liu, Fupin Yao, Chiho Choi, Sinha Ayan, and Karthik Ramani
In proceedings of Seventh International Conference on Learning Representations (ICLR), New Orleans, May 6-9, 2019

The ground-breaking performance obtained by deep convolutional neural networks (CNNs) for image processing tasks is inspiring research efforts attempting to extend it for 3D geometric tasks. One of the main challenge in applying CNNs to 3D shape...

SynchronizAR: Instant Synchronization for Spontaneous and Spatial Collaborations in Augmented Reality

SynchronizAR: Instant Synchronization for Spontaneous and Spatial Collaborations in Augmented Reality

Ke Huo, Tianyi Wang, Luis Paredes, Ana M Villanueva, Yuanzhi Cao, Karthik Ramani
In Proceedings of the 31th Annual Symposium on User Interface Software and Technology, UIST 2018, Oct. 14-17, Berlin, Germany.

We present SynchronizAR, an approach to spatially register multiple SLAM devices together without sharing maps or involving external tracking infrastructures. SynchronizAR employs a distance based indirect registration which resolves the...

MultiSoft: Soft Sensor Enabling Real-Time Multimodal Sensing with Contact Localization and Deformation Classification

MultiSoft: Soft Sensor Enabling Real-Time Multimodal Sensing with Contact Localization and Deformation Classification

Sang Ho Yoon, Luis Paredes, Ke Huo, Karthik Ramani
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT Volume 2 Issue 3, UbiComp 2018)

Abstract: We introduce MultiSoft, a multilayer soft sensor capable of sensing real-time contact localization, classification of deformation types, and estimation of deformation magnitudes. We propose a multimodal sensing pipeline that carries out...

Gauss’s law for networks directly reveals community boundaries

Gauss’s law for networks directly reveals community boundaries

Ayan Sinha, David F. Gleich & Karthik Ramani
Scientific reports 8.1 (2018): 11909.

The study of network topology provides insight into the function and behavior of physical, social, and biological systems. A natural step towards discovering the organizing principles of these complex topologies is to identify a reduced network...

Toying With Design: Experiencing Design for Rapid Prototyping Using Mini-Fabrication Exercises

Toying With Design: Experiencing Design for Rapid Prototyping Using Mini-Fabrication Exercises

Siddharth Banerjee, Caleb Carithers, Aniket Chavan, Devarajan Ramanujan and Karthik Ramani
Proceedings of the ASME 2018 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2018. August 26-29, 2018, Quebec City, Canada

This study explores the use of mini-fabrication exercises for helping students learn design for rapid prototyping in computeraided design and prototyping courses in engineering curricula. To this end, we conducted mini-fabrication exercises in...

Plain2Fun: Augmenting Ordinary Objects with Interactive Functions by Auto-Fabricating Surface Painted Circuits

Plain2Fun: Augmenting Ordinary Objects with Interactive Functions by Auto-Fabricating Surface Painted Circuits

Tianyi Wang, Ke Huo, Pratik Chawla, Guiming Chen, Siddharth Banerjee, Karthik Ramani
Proceedings of the 2018 DIS Designing Interactive Systems Conference, June 9-13, 2018, Hong Kong, China, with honourable mention.

The growing makers’ community demands better supports for designing and fabricating interactive functional objects. Most of the current approaches focus on embedding desired functions within new objects. Instead, we advocate repurposing the...

Scenariot: Spatially Mapping Smart Things Within Augmented Reality Scenes

Scenariot: Spatially Mapping Smart Things Within Augmented Reality Scenes

Ke Huo, Yuanzhi Cao, Sang Ho Yoon, Zhuangying Xu, Guiming Chen, Karthik Ramani
Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, CHI 2018, April 21–26, 2018, Montreal, QC, Canada

The emerging simultaneous localizing and mapping (SLAM) based tracking technique allows the mobile AR device spatial awareness of the physical world. Still, smart things are not fully supported with the spatial awareness in AR. Therefore, we...

Plain2Fun: Augmenting Ordinary Objects with Interactive Functions by Auto-Fabricating Surface Painted Circuits

Plain2Fun: Augmenting Ordinary Objects with Interactive Functions by Auto-Fabricating Surface Painted Circuits

Tianyi Wang, Ke Huo, Partik Chawla, Guiming Chen, Siddharth Banerjee, Karthik Ramani
In Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems (p. LBW113). ACM.

The growing makers’ community demands better supports for designing and fabricating interactive functional objects. Most of the current approaches focus on embedding desired functions within new objects. Instead, we advocate re-purposing the...

3D Object Classification via Spherical Projections

3D Object Classification via Spherical Projections

Zhangjie Cao, Qixing Huang, Karthik Ramani
In Proceedings of International Conference on 3D Vision (3DV 2017), Spotlight Presentation. Qingdao, China, October 12-14, 2017

In this paper, we introduce a new method for classifying 3D objects. Our main idea is to project a 3D object onto a spherical domain centered around its barycenter and develop neural network to classify the spherical projection. We introduce two...

Ani-Bot: A Mixed-Reality Ready Modular Robotics System

Ani-Bot: A Mixed-Reality Ready Modular Robotics System

Yuanzhi Cao, Zhuangying Xu, Terrell Glenn, Ke Huo, Karthik Ramani
In Proceedings of the 30th Annual ACM Symposium on User Interface Software & Technology (UIST 2017 Poster Abstract) , Quebec City, Canada, 2017

[gview file="https://Engineering.Purdue.edu/cdesign/wp/wp-content/uploads/2017/11/ani-bot-poster.pdf"]

iSoft: A Customizable Soft Sensor with Real-time Continuous Contact and Stretching Sensing

iSoft: A Customizable Soft Sensor with Real-time Continuous Contact and Stretching Sensing

Sang Ho Yoon, Ke Huo, Yunbo Zhang, Guiming Chen, Luis Paredes, Subramanian Chidambaram, Karthik Ramani
In Proceedings of the 30th Annual ACM Symposium on User Interface Software & Technology (UIST'17) , Quebec City, Canada, 2017 (Acceptance Rate: 22.5%)

We present iSoft, a single volume soft sensor capable of sensing real-time continuous contact and unidirectional stretching. We propose a low-cost and an easy way to fabricate such piezoresistive elastomer-based soft sensors for instant...

Robust Hand Pose Estimation during the Interaction with an Unknown Object

Robust Hand Pose Estimation during the Interaction with an Unknown Object

Chiho Choi, Sang Ho Yoon, Chin-Ning Chen, Karthik Ramani
Proceedings of the IEEE International Conference on Computer Vision, 3123-3132

Abstract: This paper proposes a robust solution for accurate 3D hand pose estimation in the presence of an external object interacting with hands. Our main insight is that the shape of an object causes a configuration of the hand in the form of a...

Learning Hand Articulations by Hallucinating Heat Distribution

Learning Hand Articulations by Hallucinating Heat Distribution

Chiho Choi, Sangpil Kim, Karthik Ramani
Proceedings of the IEEE International Conference on Computer Vision, 3104-3113

We propose a robust hand pose estimation method by learning hand articulations from depth features and auxiliary modality features. As an additional modality to depth data, we present a function of geometric properties on the surface of the hand...

Design Patterns for Visualization-Based Tools in Sustainable Product Design

Design Patterns for Visualization-Based Tools in Sustainable Product Design

Ramanujan D., Bernstein W.Z., Ramani K.
Proceedings of the 2017 ASME International Design Engineering Technical Conferences, Cleveland, Ohio, USA

Most design activities involve exploring and comparing existing designs. Thus, adopting an eco-conscious approach in the design exploration process can aid environmentally sustainable product design (SPD). One approach for supporting exploration in...

The Design for Additive Manufacturing Worksheet (Conference)

The Design for Additive Manufacturing Worksheet (Conference)

Joran W. Booth; Jeffrey Alperovich; Tahira N. Reid; Karthik Ramani
Proc. ASME. 50190; Volume 7: 28th International Conference on Design Theory and Methodology, V007T06A041.August 21, 2016 DETC2016-60407 doi: 10.1115/DETC2016-60407

Additive manufacturing (AM) technologies have become integral to the modern manufacturing process. These roles are filled both in prototyping and production. Many studies have been conducted and lists been written on guidelines for AM. While these...

The Design for Additive Manufacturing Worksheet

The Design for Additive Manufacturing Worksheet

Joran W. Booth, Jeffrey Alperovich, Pratik Chawla, Jiayan Ma, Tahira Reid, Karthik Ramani
Journal of Mechanical Design 139.10 (2017): 100904.

Additive manufacturing (AM) technologies have become integral to modern prototyping and manufacturing. Therefore, guidelines for using AM are necessary to help users new to the technology. Many others have proposed useful guidelines, but these are...

Secure Collaboration in Engineering Systems Design

Secure Collaboration in Engineering Systems Design

Wang S., Bhandari S., Chaduvula S. Chaitanya, Atallah M., Panchal J. H., Ramani K
Journal of Computing and Information Science in Engineering 17.4 (2017): 041010.

The goal in this paper is to enable collaboration in the co-design of engineering artifacts when participants are reluctant to share their design-related confidential and proprietary information with other co-designers, even though such information...

Integrating Visual Analytics Support for Grounded Theory Practice in Qualitative Text Analysis

Integrating Visual Analytics Support for Grounded Theory Practice in Qualitative Text Analysis

Senthil Chandrasegaran, Sriram Karthik Badam, Lorraine Kisselburgh, Karthik Ramani, Niklas Elmqvist
Computer Graphics Forum. Vol. 36. No. 3. 2017.

We present an argument for using visual analytics to aid Grounded Theory methodologies in qualitative data analysis. Grounded theory methods involve the inductive analysis of data to generate novel insights and theoretical constructs. Making sense...

Merging Sketches for Creative Design Exploration: An Evaluation of Physical and Cognitive Operations

Merging Sketches for Creative Design Exploration: An Evaluation of Physical and Cognitive Operations

Senthil Chandrasegaran, Sriram Karthik Badam, Ninger Zhou, Zhenpeng Zhao, Lorraine Kisselburgh, Kylie Peppler, Niklas Elmqvist, Karthik Ramani
In proceedings of the 2017 Graphics Interface Conference.

Despite its grounding in creativity techniques, merging multiple source sketches to create new ideas has received scant attention in design literature. In this paper, we identify the physical operations that in merging sketch components. We also...

The Influence of Toy Design Activities on Middle School Students Understanding of the Engineering Design Processes

The Influence of Toy Design Activities on Middle School Students Understanding of the Engineering Design Processes

Ninger Zhou, Nielsen L. Pereira, Tarun Thomas George, Jeffrey Alperovich, Joran Booth, Senthil Chandrasegaran, Jeffrey David Tew, Devadatta M. Kulkarni, Karthik Ramani
Journal of Science Education and Technology (2017): 1-13.

The societal demand for inspiring and engaging science, technology, engineering, and mathematics (STEM) students and preparing our workforce for the emerging creative economy has necessitated developing students self-efficacy and understanding of...

SurfNet: Generating 3D shape surfaces using deep residual networks

SurfNet: Generating 3D shape surfaces using deep residual networks

Sinha, A., Unmesh, A., Huang, Q., and Ramani, K
Proceedings of the IEEE conference on computer vision and pattern recognition. 2017.

  3D shape models are naturally parameterized using vertices and faces, i.e., composed of polygons forming a surface. However, current 3D learning paradigms for predictive and generative tasks using convolutional neural networks focus on a...

Product personalization enabled by assembly architecture and cyber physical systems

Product personalization enabled by assembly architecture and cyber physical systems

Changbai Tan, S. Jack Hu, Haseung Chung, Kira Barton, Cecil Piya, Karthik Ramani and Mihaela Banu
CIRP Annals 66.1 (2017): 33-36.

Personalization is an emerging manufacturing paradigm towards meeting diversified customer needs. This paper proposes a framework for producing personalized products efficiently. An approach for optimal mix of different module types is proposed in...

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

Yanke Tan, Sang Ho Yoon, Karthik Ramani
In Proceedings of the 2017 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA' 17: 2147-2154), Denver, CO, May 6-11, 2017

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...

VizScribe: A visual analytics approach to understand designer behavior

VizScribe: A visual analytics approach to understand designer behavior

Chandrasegaran, S., Badam, S. K., Kisselburgh, L., Peppler, K., Elmqvist, N., and Ramani, K.
International Journal of Human-Computer Studies, 100, April 2017, pp. 66 -- 80.

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...

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

Sujin Jang, Wolfgang Stuerzlinger, Satyajit Ambike, Karthik Ramani
In Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2017: 3328-3339), Denver, CO, May 6-11, 2017 (Acceptance Rate: 25%)

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...

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

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

Min Liu, Yunbo Zhang, Jing Bai, Yuanzhi Cao, Jeffrey Alperovich, Karthik Ramani
In Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2017: 965-976), Denver, CO, May 6-11, 2017 (Acceptance Rate: 25%)

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...

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

Ke Huo, Vinayak, Karthik Ramani
In Proceedings of the TEI'17: Tenth International Conference on Tangible, Embedded, and Embodied Interaction. ACM. (TEI'17: 37-45) , Yokohama, Japan, Mar., 2017

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...

Co-3Deator: A Team-First Collaborative 3D Design Ideation Tool

Co-3Deator: A Team-First Collaborative 3D Design Ideation Tool

Cecil Piya, Vinayak, Senthil Chandrasegaran, Niklas Elmqvist, Karthik Ramani
In Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2017: 6581-6592), Denver, CO, May 6-11, 2017 (Acceptance Rate: 25%)

We present Co-3Deator, a sketch-based collaborative 3D modeling system based on the notion of "team-first" ideation tools, where the needs and processes of the entire design team come before that of an individual designer. Co-3Deator includes two...

Deconvolving Feedback Loops in Recommender Systems

Deconvolving Feedback Loops in Recommender Systems

Ayan Sinha, David F. Gleich, Karthik Ramani
In Proceedings of the Thirtieth Annual Conference on Neural Information Processing Systems (NIPS'16) , Barcelona, Spain, 2016

Collaborative filtering is a popular technique to infer users' preferences on new content based on the collective information of all users preferences. Recommender systems then use this information to make personalized suggestions to users. When...

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

Window-Shaping: 3D Design Ideation in Mixed Reality

Ke Huo, Vinayak, Karthik Ramani
In Proceedings of the 2016 Symposium on Spatial User Interaction, Tokyo, Japan, 2016 Oct.

We present, Window-Shaping, a mobile, markerless, mixed-reality (MR) interface for creative design ideation that allows for the direct creation of 3D shapes on and around physical objects. Using the sketch-and-inflate scheme, we present a design...

TRing: Instant and Customizable Interactions with Objects Using an Embedded Magnet and a Finger-Worn Device

TRing: Instant and Customizable Interactions with Objects Using an Embedded Magnet and a Finger-Worn Device

Sang Ho Yoon, Yunbo Zhang, Ke Huo, Karthik Ramani
In Proceedings of the 29th Annual ACM Symposium on User Interface Software & Technology (UIST'16) , Tokyo, Japan, 2016 (Acceptance Rate: 20.6%)

We present TRing, a finger-worn input device which provides instant and customizable interactions. TRing offers a novel method for making plain objects interactive using an embedded magnet and a finger-worn device. With a particle filter integrated...

Developing Middle School Students’ Engineering Design Concepts through Toy Design Workshop

Developing Middle School Students’ Engineering Design Concepts through Toy Design Workshop

Ninger Zhou, Tarun Thomas George, Joran W. Booth, Jeffrey Alperovich, Senthil Chandrasegaran, Nielsen L. Pereira, Jeffrey David Tew, Devadatta M. Kulkarni, Karthik Ramani
ASEE 123rd Annual, New Orleans, LA, June 26-29, 2016

In this study, we structured a toy design workshop to provide hands on and engaging design activities for middle school students, to help them develop self-efficacy beliefs in design, model and scaffold engineering design mindsets, and apply design...

Deep Learning 3D Shape Surfaces using Geometry Images

Deep Learning 3D Shape Surfaces using Geometry Images

Ayan SInha, Jing Bai, Karthik Ramani
The 14th European Conference on Computer Vision, October 11-14, 2016, Amsterdam, The Netherlands.

Surfaces serve as a natural parametrization to 3D shapes. Learning surfaces using convolutional neural networks (CNNs) is a challenging task. Current paradigms to tackle this challenge are to either adapt the convolutional filters to operate on...

shapeSIFT: Evaluating InfoVis Tools for Eco-Conscious Design

shapeSIFT: Evaluating InfoVis Tools for Eco-Conscious Design

Ramanujan D, Bernstein WZ, Kulkarni D, Tew J, & Ramani K
In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (pp. V004T05A041-V004T05A041). American Society of Mechanical Engineers.

In this paper, we present the methodology and results from the evaluation of shapeSIFT: a multi-dimensional visualization tool for exploring part repositories in the context of eco-conscious design. The goals of this work are twofold, to create a...

FEAsy: A Sketch-Based Tool for Finite Element Analysis

FEAsy: A Sketch-Based Tool for Finite Element Analysis

Sundar Murugappan, Cecil Piya, Maria C. Yang, Karthik Ramani
Journal of Computing and Information Science in Engineering, Volume 16, Issue 3, September 2016

Freehand sketching is an integral part of early design process. Recent years have seen an increased interest in supporting sketching in computer-based design systems. In this paper, we present finite element analysis made easy (FEAsy), a...

The intrinsic geometric structure of protein-protein interaction networks for protein interaction prediction

The intrinsic geometric structure of protein-protein interaction networks for protein interaction prediction

Yi Fang, Mengtian Sun, Guoxian Dai, and Karthik Ramani
IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB) TCBB Homepage archive Volume 13 Issue 1, January/February 2016 Pages 76-85

Recent developments in high-throughput technologies for measuring protein-protein interaction (PPI) have profoundly advanced our ability to systematically infer protein function and regulation. However, inherently high false positive and false...

Proto-TAI++: Exploring Perceptually Consistent Creation of Planar Shape Assemblies Through Multimodal Tangible Interactions

Proto-TAI++: Exploring Perceptually Consistent Creation of Planar Shape Assemblies Through Multimodal Tangible Interactions

Cecil Piya, Vinayak, Karthik Ramani
Journal of Computing and Information Science in Engineering, Volume 16, Issue 3, September 2016

We explore tangible 3D interactions that allow for geometric and perceptual correspondence between a midair modality and the 3D elements it controls. To demonstrate our approach, we use a concrete application scenario through Proto-TAI++, a...

DeepHand: Robust Hand Pose Estimation by Completing a Matrix Imputed with Deep Features

DeepHand: Robust Hand Pose Estimation by Completing a Matrix Imputed with Deep Features

Ayan Sinha*, Chiho Choi*, and Karthik Ramani (* denotes equal contribution)
In Proc. IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2016, Las Vegas, USA.

We propose DeepHand to estimate the 3D pose of a hand using depth data from commercial 3D sensors. We discriminatively train convolutional neural networks to output a low dimensional activation feature given a depth map. This activation feature...

The Design For Additive Manufacturing Worksheet

The Design For Additive Manufacturing Worksheet

Joran W. Booth, Jeffery Alperovich, Tahira N. Reid, Karthik Ramani
Proceedings of the ASME 2016 International Design Engineering Technical Conferences &Computers and Information in Engineering ConferenceIDETC/CIE 2016August 21-24, 2016, Charlotte, North Carolina, USA

Abstract: Additive manufacturing (AM) technologies have become integral to the modern manufacturing process. These roles are filled both in prototyping and production. Many studies have been conducted and lists been written on guidelines for AM....

CardBoardiZer: Creatively Customize, Articulate and Fold 3D Mesh Models

CardBoardiZer: Creatively Customize, Articulate and Fold 3D Mesh Models

Yunbo Zhang,Wei Gao, Luis Paredes, Karthik Ramani
Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems (pp. 897-907). ACM.

                https://youtu.be/Rnt3OCUTlZs Computer-aided design of flat patterns allows designers to prototype foldable 3D objects made of heterogeneous sheets of material. We found origami designs are...

Optimal Fitting of Strain-Controlled Flattenable Mesh Surfaces

Optimal Fitting of Strain-Controlled Flattenable Mesh Surfaces

Yunbo Zhang, Charlie C. L. Wang, Karthik Ramani
The International Journal of Advanced Manufacturing Technology, 1-15.

A flattenable mesh surface is a polygonal mesh surface that can be unfolded into a planar patch without stretching any polygon. This paper presents a new method for computing a slightly stretched flattenable mesh surface M from a piecewise-linear...

Cubimorph: Designing Modular Handheld Shape Changing Devices for End-Users

Cubimorph: Designing Modular Handheld Shape Changing Devices for End-Users

Roudaut, Anne and Krusteva, Diana and Karnik, Abhijit Anil and McCoy, Mike and Ramani, Karthik and Subramanian, Sriram
The International Conference on Robotics and Automation (ICRA) 2016, Stockholm, Sweden.

We introduce Cubimorph, a modular interactive device that accommodates touchscreens on each of the six module faces, and that uses a hinge-mounted turntable mechanism to self-reconfigure in the user's hand. Cubimorph contributes toward the vision...

TMotion: Embedded 3D Mobile Input using Magnetic Sensing Technique

TMotion: Embedded 3D Mobile Input using Magnetic Sensing Technique

Sang Ho Yoon, Ke Huo, Karthik Ramani
In Proceedings of the 10th International Conference on Tangible, Embedded, and Embodied Interaction (TEI'16), Eindhoven, Netherlands, 2016 (Acceptance Rate: 27%)

Abstract: We present TMotion, a self-contained 3D input that enables spatial interactions around mobile device using a magnetic sensing technique. We embed a permanent magnet and an inertial measurement unit (IMU) in a stylus. When the stylus moves...

MobiSweep: Exploring Spatial Design Ideation Using a Smartphone as a Hand-held Reference Plane

MobiSweep: Exploring Spatial Design Ideation Using a Smartphone as a Hand-held Reference Plane

Vinayak, Devarajan Ramanujan, Cecil Piya, Karthik Ramani
In Proceedings of the Tenth International Conference on Tangible, Embedded, and Embodied Interaction, Netherlands, 2016

In this paper, we explore quick 3D shape composition during early-phase spatial design ideation. Our approach is to re-purpose a smartphone as a hand-held reference plane for creating, modifying, and manipulating 3D sweep surfaces. We implemented...