HUMAN SHAPE INTERACTION

CumulativeFatigue_CHI17_Thumbnail

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%)
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window-shaping-sui

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
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banner_v2

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%)
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window-shaping-sui

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.
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TRing2_UIST

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%)
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img_eccv

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.
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Banner

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
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TCBB

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
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thumbnail

Proto-TAI++: Exploring perceptually consistent creation of planar shape assemblies through multi-modal tangible interactions

Cecil Piya, Vinayak, Karthik Ramani
Journal of Computing and Information Science in Engineering, Volume 16, Issue 3, September 2016
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Picture5

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.
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main_figure1

RealFusion: An Interactive Workflow for Repurposing Real-World Objects towards Early-stage Creative Ideation

Cecil Piya, Vinayak, Yunbo Zhang, Karthik Ramani
In Proceedings of Graphics Interface 2016, Victoria, BC, Canada
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TMotion

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%)
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MobiSweep_FeatureImg

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
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RevoMaker

RevoMaker: Enabling Multi-directional and Functionally-embedded 3D Printing using a Rotational Cuboidal Platform

Wei Gao*, Yunbo Zhang*, Diogo C. Nazzetta, Karthik Ramani, Raymond J. Cipra
In Proceedings of ACM Symposium on User Interface Software and Technology, (UIST '15), Charlotte, NC, USA
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CAG2015

Extracting Hand Grasp & Motion for Intent Expression in Mid-Air Shape Deformation: A Concrete & Iterative Exploration through a Virtual Pottery Application

Vinayak and Karthik Ramani
Computers & Graphics, Volume 55, April 2016, Pages 143-156, ISSN 0097-8493, (http://dx.doi.org/10.1016/j.cag.2015.10.012.)
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fig

A Collaborative Filtering Approach to Real-Time Hand Pose Estimation

Chiho Choi, Ayan Sinha, Joon Hee Choi, Sujin Jang, and Karthik Ramani
In Proc. IEEE International Conference on Computer Vision (ICCV) 2015, Santiago, Chile.
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MotionFlow for pattern analysis of human motion data. (a) Pose tree: a simplified representation of multiple motion sequences
aggregating the same transitions into a tree diagram. (b) A window dedicated to show a subtree structure based on a query. (c)
Space-filling treemap representation of the motion sequence data using slice-and-dice layout. (d) Node-link diagram of pose
clusters (nodes) and transitions (links) between them. This view supports interactive partition-based pose clustering. (e) Multi-tab
interface for storing unique motion patterns. (f) Animations of single or multiple selected human motions.

MotionFlow: Visual Abstraction and Aggregation of Sequential Patterns in Human Motion Tracking Data

Sujin Jang, Niklas Elmqvist, and Karthik Ramani
IEEE Transaction on Visualization and Computer Graphics (TVCG) vol.22, no.1, pp.21-30, Jan. 31, 2016 / IEEE Conference on Visual Analytics Science and Technology (VAST) Oct. 25-30, Chicago, IL, 2015. In print.
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gi2015

Hand Grasp and Motion for Intent Expression in Mid-Air Virtual Pottery

Vinayak and Karthik Ramani
In Proceedings of Graphics Interface 2015 (GI '15). Canadian Information Processing Society, Toronto, Ont., Canada, Canada
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Proximal Persistence

A Gesture-free Geometric Approach for Mid-Air Expression of Design Intent

Vinayak and Karthik Ramani
Computer-Aided Design (Elsevier), Available online 17 July 2015, ISSN 0010-4485, http://dx.doi.org/10.1016/j.cad.2015.06.006.
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sketcholution

Sketcholution: Interaction Histories for Sketching

Zhenpeng Zhao, William Benjamin, Niklas Elmqvist, Karthik Ramani
International Journal of Human-Computer Studies, 82 (2015) 11–20
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thumnail

GestureAnalyzer: Visual Analytics for Pattern Analysis of Mid-Air Hand Gestures

Sujin Jang, Niklas Elmqvist, Karthik Ramani
Proceedings of the ACM Symposium on Spatial User Interaction, October 4-5, 2014, Honolulu, HI, USA
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graphical_abstract

PROTO-TAI: Quick Design Prototyping using Tangible Assisted Interfaces

Cecil Piya, Karthik Ramani
Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2014, August 16-20, 2014, Buffalo, NY, USA
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jcp_2014

Remanufacturing of Turbine Blades by Laser Direct Deposition with Its Energy and Environmental Impact Analysis

J. Michael Wilson, Cecil Piya, Yung C. Shin, Fu Zhao, Karthik Ramani
Journal of Cleaner Production 80 (2014), 170 - 178
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FrameworkExample

PuppetX: A Framework for Gestural Interactions With User Constructed Playthings

Saikat Gupta, Sujin Jang, and Karthik Ramani
Proceedings of the ACM Conference on Advanced Visual Interfaces, May 27-30, Como, Italy. pp. 73-80, 2014
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comparison

Tracing and Sketching Performance using Blunt-tipped Styli on Direct-Touch Tablets

Sriram Karthik Badam, Senthil Chandrasegaran,Niklas Elmqvist, and Karthik Ramani
Proceedings of the ACM Conference on Advanced Visual Interfaces, May 27-30, Como, Italy. pp. 193-200, 2014
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FeatureImage

zPots : A Virtual Pottery Experience Through Spatial Interactions Using the Leap Motion Device

Vinayak, Karthik Ramani, Kevin Lee Jr., Raja Jasti
Proceedings of the ACM CHI' 14 Extended Abstracts on Human Factors in Computing System (CHI EA'14) April 26- May 1, Toronto, Canada.
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Figure: Detail of final robot illustration by an artist created using Juxtapoze while freely exploring (10 min). The task log shows substantial
time spent on edits and personalization of constituent shapes.

Juxtapoze: Supporting Serendipity and Creative Expression in Clipart Compositions

William Benjamin, Senthil Chandrasegaran, Devarajan Ramanujan, Niklas Elmqvist, SVN Vishwanathan, Karthik Ramani
Proceedings of the ACM Conference on Human Factors in Computing Systems, April 26 - May 1, Toronto, Canada. pp 341-350, 2014.
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scale

Multiscale Kernels using Random Walks

Karthik Ramani, Ayan Sinha
11th Symposium on Geometry processing, 3-5 July, Genova, Italy, 2013. Proceedings of the Computer Graphics Forum, Computer Graphics Forum, Volume 33, Issue 1, pages 164–177, 2014.
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Pirate2

Shape-It-Up: Hand Gesture Based Creative Expression of 3D Shapes Using Intelligent Generalized Cylinders

Vinayak, Sundar Murugappan, HaiRong Liu, Karthik Ramani,
Computer-Aided Design, Volume 45, Issue 2, February 2013, Pages 277-287, ISSN 0010-4485, 10.1016/j.cad.2012.10.011. (http://www.sciencedirect.com/science/article/pii/S0010448512002163)
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usd_touch_tumb

Extended Multitouch: Recovering Touch Posture & Identity Using Depth Cameras on a Pen+Touch Tabletop Interface

Sundar Murugappan, Vinayak, Niklas Elmqvist, Karthik Ramani
Proceedings of ACM Conference on User Interface Software and Technology, 2012
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Glove_rend6

ACTIVE-Hand: Automatic Configurable Tactile Interaction in Virtual Environment

You Wu, Lara Schmidt, Matthew Parker, John Strong, Michael Bruns, Vinayak Karthik Ramani
Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference
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Figure12

Handy-Potter: Rapid 3D Shape Exploration Through Natural Hand Motions

Vinayak, Sundar Murugappan, Cecil Piya, Karthik Ramani
Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2012, August 12-15, 2012, Chicago, Illinois, USA
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1

Center-Shift: An Approach Towards Automatic Robust Mesh Segmentation (ARMS)

Mengtian Sun , Yi Fang , and Karthik Ramani
IEEE Computer Vision and Pattern Recognition (CVPR), 2012
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rere

Towards locally and globally shape-aware reverse 3D modeling

Manish Goyal, Sundar Murugappan, Cecil Piya, William Benjamin, Yi Fang, Min Liu, Karthik Ramani
Computer-Aided Design, Volume 44, Issue 6, June 2012, Pages 537-553
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biomed

3DMolNavi: A web-based retrieval and navigation tool for flexible molecular shape comparison

Yu-Shen Liu, Meng Wang, Jean-Claude Paul and Karthik Ramani
Published in BMC Bioinformatics 2012, 13:95
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compInner

Computing the Inner Distances of Volumetric Models for Articulated Shape Description with a Visibility Graph

Yu-Shen Liu, Karthik Ramani, Min Liu
IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI), 2011, 23(12): 2538-2544.
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visualRepair

Virtual Repair: Geometric Reconstruction for Remanufacturing Gas Turbine Blades

Cecil Piya, J. Michael Wilson, Sundar Murugappan, Yung Shin, and Karthik Ramani
Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Design for Manufacturing and the Life Cycle Conference IDETC/DFMLC 2011 August 29 - 31, 2011, Washington, DC, USA
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heatwalk

HeatWalk: Robust Salient Segmentation of Non-rigid Shapes

William Benjamin, Andrew Wood Polk, S. V. N. Vishwanathan, and Karthik Ramani
Computer Graphics Forum Volume 30 (2011), Number 7 Pages 2097-2106
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slle

sLLE: Spherical Locally Linear Embedding with Applications to Tomography

Yi Fang, S.V.N. Vishwanathan, Mengtian Sun, and Karthik Ramani
Published in IEEE Computer Vision and Pattern Recognition (CVPR), pp 1077-1129, 2011
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tempDist

Temperature Distribution Descriptor for Robust 3D Shape Retrieval

Yi Fang, Mengtian Sun, and Karthik Ramani
4th Workshop on Non-Rigid Shape Analysis and Deformable Image Alignment (NORDIA'11). 2011 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)
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apix

APIX: Analysis from Pixellated Inputs in Early Design Using a Pen-based Interface

Sundar Murugappan, Vinayak, Karthik Ramani, and Maria. C. Yang
Proceedings of the ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2011, Washington, DC, USA
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gga

Global Geometric Affinity for Revealing High Fidelity Protein Interaction Network

Yi Fang, William Benjamin, Mengtian Sun, and Karthik Ramani
PLoS ONE 6(5): e19349.
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heatmap

Heat-Mapping: A Robust Approach Toward Perceptually Consistent Mesh Segmentation

Yi Fang, Mengtian Sun, Minhyong Kim, and Karthik Ramani
IEEE Computer Vision and Pattern Recognition (CVPR), pp 2145-2152, 2011
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diffusion

Using Diffusion Distances for Flexible Molecular Shape Comparison

Yu-shen Liu, Qi Li, Guo-Qin Zheng, Karthik Ramani, and William Benjamin
BMC Bioinformatics 2010, 11:480
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rec

Estimating view parameters from random projections for Tomography using spherical MDS

Yi Fang, Sundar Murugappan, and Karthik Ramani
shed in BMC Medical Imaging 2010, 10:12
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hand

PCS: Prominent Cross-Sections for Mesh Models

Subramani Sellamani, Ramanathan Muthuganapathy, Yagnanarayanan Kalyanaraman, Sundar Murugappan, Manish Goyal, Karthik Ramani, and Christoph M. Hoffman
Computer Aided Design and Applications (CADA), Volume 7, Number 4, Pages 601-620, 2010
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cad3d

Shape-based clustering for 3D CAD objects: A comparative study of effectiveness

Subramaniam Jayanti, Yagnanarayanan Kalyanaraman and Karthik Ramani
Computer-Aided Design Volume 41, Issue 12, December 2009, Pages 999-1007
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spm_min

Computing global visibility maps for regions on the boundaries of polyhedra using Minkowski sums

Min Liu, Yu-shen Liu, Karthik Ramani
Computer-Aided Design , Volume 41 , Issue 9 (September 2009)
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three-dimensional-comparison

Three dimensional shape comparison of flexible protein using the local-diameter descriptor

Yi Fang, Yu-shen Liu and Karthik Ramani
BMC Structural Biology 2009, 9:29
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feasy

FEAsy:A Sketch-based Interface Integrating Structural Analysis In Early Design

Sundar Murugappan and Karthik Ramani
Proceedings of the ASME 2009 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2009 August 30 - September 2, 2009, San Diego, CA, USA
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