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!FTL, an Articulation-Invariant Stroke Gesture Recognizer with Controllable Position, Scale, and Rotation Invariances

Published: 02 October 2018 Publication History

Abstract

Nearest neighbor classifiers recognize stroke gestures by computing a (dis)similarity between a candidate gesture and a training set based on points, which may require normalization, resampling, and rotation to a reference before processing. To eliminate this expensive preprocessing, this paper introduces a vector-between-vectors recognition where a gesture is defined by a vector based on geometric algebra and performs recognition by computing a novel Local Shape Distance (LSD) between vectors. We mathematically prove the LSD position, scale, and rotation invariance, thus eliminating the preprocessing. To demonstrate the viability of this approach, we instantiate LSD for n=2 to compare !FTL, a 2D stroke-gesture recognizer with respect to $1 and $P, two state-of-the-art gesture recognizers, on a gesture set typically used for benchmarking. !FTL benefits from a recognition rate similar to $P, but a significant smaller execution time and a lower algorithmic complexity.

Supplementary Material

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Appendices of the paper with pseudo-code and video demonstrations
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References

[1]
Lisa Anthony and Jacob O. Wobbrock. 2010. A Lightweight Multistroke Recognizer for User Interface Prototypes. In Proceedings of Graphics Interface 2010 (GI '10). Canadian Information Processing Society, Toronto, Ont., Canada, Canada, 245--252. http://dl.acm.org/citation.cfm?id=1839214.1839258
[2]
Lisa Anthony and Jacob O. Wobbrock. 2012. $N-protractor: A Fast and Accurate Multistroke Recognizer. In Proceedings of Graphics Interface 2012 (GI '12). Canadian Information Processing Society, Toronto, Ont., Canada, Canada, 117--120. http://dl.acm.org/citation.cfm?id=2305276.2305296
[3]
Caroline Appert and Olivier Bau. 2010. Scale Detection for a Priori Ges- ture Recognition. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '10). ACM, New York, NY, USA, 879--882.
[4]
Caroline Appert and Shumin Zhai. 2009. Using Strokes As Command Shortcuts: Cognitive Benefits and Toolkit Support. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '09). ACM, New York, NY, USA, 2289--2298.
[5]
Daniel Ashbrook and Thad Starner. 2010. MAGIC: A Motion Gesture Design Tool. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '10). ACM, New York, NY, USA, 2159--2168.
[6]
Gilles Bailly, Eric Lecolinet, and Laurence Nigay. 2008. Flower Menus: A New Type of Marking Menu with Large Menu Breadth, Within Groups and Efficient Expert Mode Memorization. In Proceedings of the Working Conference on Advanced Visual Interfaces (AVI '08). ACM, New York, NY, USA, 15--22.
[7]
François Beuvens and Jean Vanderdonckt. 2012. Designing Graphical User Inter- faces Integrating Gestures. In Proceedings of the 30th ACM International Conference on Design of Communication (SIGDOC '12). ACM, New York, NY, USA, 313--322.
[8]
François Beuvens and Jean Vanderdonckt. 2012. UsiGesture: An environment for integrating pen-based interaction in user interface development. In Sixth International Conference on Research Challenges in Information Science, RCIS 2012, Valencia, Spain, May 16-18 2012, Colette Rolland, Jaelson Castro, and Oscar Pastor (Eds.). IEEE, 1--12.
[9]
Ugo Braga Sangiorgi, Vivian Genaro Motti, François Beuvens, and Jean Vanderdonckt. 2012. Assessing Lag Perception in Electronic Sketching. In Pro- ceedings of the 7th Nordic Conference on Human-Computer Interaction: Making Sense Through Design (NordiCHI '12). ACM, New York, NY, USA, 153--161.
[10]
Andrew Bragdon, Robert Zeleznik, Brian Williamson, Timothy Miller, and Joseph J. LaViola, Jr. 2009. GestureBar: Improving the Approachability of Gesture-based Interfaces. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '09). ACM, New York, NY, USA, 2269--2278.
[11]
Xiang Cao and Shumin Zhai. 2007. Modeling Human Performance of Pen Stroke Gestures. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '07). ACM, New York, NY, USA, 1495--1504.
[12]
Alessandro Carcangiu and Lucio Davide Spano. 2018. G-Gene: A Gene Alignment Method for Online Partial Stroke Gestures Recognition. Proc. ACM Hum.-Comput. Interact. 2, EICS, Article 13 (June 2018), 17 pages.
[13]
Samuel hsiao-heng Chang, Rachel Blagojevic, and Beryl Plimmer. 2012. Rata.Gesture: A Gesture Recognizer Developed Using Data Mining. Artif. In-tell. Eng. Des. Anal. Manuf. 26, 3 (Aug. 2012), 351--366.
[14]
Mauricio Cirelli and Ricardo Nakamura. 2014. A Survey on Multi-touch Gesture Recognition and Multi-touch Frameworks. In Proceedings of the Ninth ACM International Conference on Interactive Tabletops and Surfaces (ITS '14). ACM, New York, NY, USA, 35--44.
[15]
J. Cohen. 1988. Statistical Power Analysis for the Behavioral Sciences, 2nd Edition. Lawrence Erlbaum, Hillsdale.
[16]
Paul Corey and Tracy Hammond. 2008. GLADDER: Combining Gesture and Geometric Sketch Recognition. In Proceedings of the 23rd National Conference on Artificial Intelligence - Volume 3 (AAAI'08). AAAI Press, 1788--1789. http://dl.acm.org/citation.cfm?id=1620270.1620354
[17]
Adrien Coyette, Sascha Schimke, Jean Vanderdonckt, and Claus Vielhauer. 2007. Trainable Sketch Recognizer for Graphical User Interface Design. Springer Berlin Heidelberg, Berlin, Heidelberg, 124--135.
[18]
Leo Dorst, Daniel Fontijne, and Stephen Mann. 2007. Geometric Algebra for Computer Science: An Object-Oriented Approach to Geometry (1st ed.). Morgan Kaufmann Publishers Inc., San Francisco, CA, USA.
[19]
M.-P. Dubuisson and A. Jain. 1994. A Modified Hausdorff distance for object matching. In Proceedings of the 12th IAPR International Conference on Pattern Recognition (IAPR '94). IEEE Press, 566--568. http://ieeexplore.ieee.org/document/ 576361/
[20]
Richard O. Duda, Peter E. Hart, and David G. Stork. 2000. Pattern Classification. Wiley & Sons, New York.
[21]
Manuel J. Fonseca and Joaquim A. Jorge. 2001. Experimental evaluation of an on-line scribble recognizer. Pattern Recognition Letters 22, 12 (2001), 1311--1319.
[22]
Bruno Galveia, Tiago Cardoso, Vitor Santor, and Yves Rybarczyk. 2015. Towards the creation of a Gesture Library. EAI Endorsed Transactions on Creative Technologies 15, 3 (6 2015).
[23]
Nicholas Gillian and Joseph A. Paradiso. 2014. The Gesture Recognition Toolkit. J. Mach. Learn. Res. 15, 1 (Jan. 2014), 3483--3487. http://dl.acm.org/citation.cfm? id=2627435.2697076
[24]
G.V. Glass, B. McGaw, and M.L. Smith. 1981. Meta-Analysis in Social Research. Sage, Beverly Hills.
[25]
Trevor Hastie, Robert Tibshirani, and Jérome Friedman. 2009. The Elements of Statistical Learning: Data Mining, Inference, and Prediction. Springer-Verlag, Berlin.
[26]
J. Herold and T. F. Stahovich. 2012. The 1&Cent; Recognizer: A Fast, Accurate, and Easy-to-implement Handwritten Gesture Recognition Technique. In Proceedings of the International Symposium on Sketch-Based Interfaces and Modeling (SBIM '12). Eurographics Association, Goslar Germany, Germany, 39--46. http://dl.acm. org/citation.cfm?id=2331067.2331074
[27]
Michael Hoffman, Paul Varcholik, and Joseph J. LaViola. 2010. Breaking the Status Quo: Improving 3D Gesture Recognition with Spatially Convenient Input Devices. In Proceedings of the 2010 IEEE Virtual Reality Conference (VR '10). IEEE Computer Society, Washington, DC, USA, 59--66.
[28]
Heloise Hse, Michael Shilman, and A. Richard Newton. 2004. Robust Sketched Symbol Fragmentation Using Templates. In Proceedings of the 9th International Conference on Intelligent User Interfaces (IUI '04). ACM, New York, NY, USA, 156--160. Retrieved September 9, 2017 from https://embedded.eecs.berkeley.edu/research/hhreco/.
[29]
M. Murray J. Gilbert. 1991. Clifford algebras and Dirac operators in harmonic analysis. Cambridge University Press.
[30]
Kenichi Kanatani. 2015. Understanding Geometric Algebra: Hamilton, Grassmann, and Clifford for Computer Vision and Graphics. A. K. Peters, Ltd., Natick, MA, USA.
[31]
Levent Burak Kara and Thomas F. Stahovich. 2004. Hierarchical Parsing and Recognition of Hand-sketched Diagrams. In Proceedings of the 17th Annual ACM Symposium on User Interface Software and Technology (UIST '04). ACM, New York, NY, USA, 13--22.
[32]
Kisang Kim and Hyung-Il Choi. 2016. Online Hand Gesture Recognition Using Enhanced $N Recogniser Based on a Depth Camera. Int. J. Comput. Vision Robot. 6, 3 (Jan. 2016), 214--222.
[33]
Sven Kratz and Michael Rohs. 2010. A $3 Gesture Recognizer: Simple Gesture Recognition for Devices Equipped with 3D Acceleration Sensors. In Proceedings of the 15th International Conference on Intelligent User Interfaces (IUI '10). ACM, New York, NY, USA, 341--344.
[34]
Sven Kratz and Michael Rohs. 2011. Protractor3D: A Closed-form Solution to Rotation-invariant 3D Gestures. In Proceedings of the 16th International Conference on Intelligent User Interfaces (IUI '11). ACM, New York, NY, USA, 371--374.
[35]
Per-Ola Kristensson and Shumin Zhai. 2004. SHARK2: A Large Vocabulary Shorthand Writing System for Pen-based Computers. In Proceedings of the 17th Annual ACM Symposium on User Interface Software and Technology (UIST '04). ACM, New York, NY, USA, 43--52.
[36]
Luis A. Leiva, Daniel Martín-Albo, and Réjean Plamondon. 2015. Gestures À Go Go: Authoring Synthetic Human-Like Stroke Gestures Using the Kinematic Theory of Rapid Movements. ACM Trans. Intell. Syst. Technol. 7, 2, Article 15 (Nov. 2015), 29 pages.
[37]
J. A. Lester. 1996. Triangles I: Shapes. aequationes mathematicae 52, 1 (01 Feb 1996), 30--54.
[38]
Yang Li. 2010. Protractor: A Fast and Accurate Gesture Recognizer. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '10). ACM, New York, NY, USA, 2169--2172.
[39]
Allan Christian Long, Jr., James A. Landay, and Lawrence A. Rowe. 1999. Impli- cations for a Gesture Design Tool. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '99). ACM, New York, NY, USA, 40--47.
[40]
Hao Lü, James A. Fogarty, and Yang Li. 2014. Gesture Script: Recognizing Gestures and Their Structure Using Rendering Scripts and Interactively Trained Parts. In Proceedings of the 32Nd Annual ACM Conference on Human Factors in Computing Systems (CHI '14). ACM, New York, NY, USA, 1685--1694.
[41]
Kent Lyons, Helene Brashear, Tracy Westeyn, Jung Soo Kim, and Thad Starner. 2007. GART: The Gesture and Activity Recognition Toolkit. In Proceedings of the 12th International Conference on Human-computer Interaction: Intelligent Multimodal Interaction Environments (HCI'07). Springer-Verlag, Berlin, Heidelberg, 718--727. http://dl.acm.org/citation.cfm?id=1769590.1769671
[42]
Elena Deza Michel Marie Deza. 2016. Encyclopedia of Distances (4 ed.). Springer- Verlag, Berlin.
[43]
Tao Ni and Patrick Baudisch. 2009. Disappearing Mobile Devices. In Proceedings of the 22Nd Annual ACM Symposium on User Interface Software and Technology (UIST '09). ACM, New York, NY, USA, 101--110.
[44]
Corey Pittman, Eugene M. Taranta II, and Joseph J. LaViola, Jr. 2016. A $-Family Friendly Approach to Prototype Selection. In Proceedings of the 21st International Conference on Intelligent User Interfaces (IUI '16). ACM, New York, NY, USA, 370--374.
[45]
Dean Rubine. 1991. Specifying Gestures by Example. In Proceedings of the 18th Annual Conference on Computer Graphics and Interactive Techniques (SIGGRAPH '91). ACM, New York, NY, USA, 329--337.
[46]
W. J. Rucklidge. 1995. Locating Objects Using the Hausdorff Distance. In Pro- ceedings of the Fifth International Conference on Computer Vision (ICCV '95). IEEE Computer Society, Washington, DC, USA, 457--. http://dl.acm.org/citation.cfm? id=839277.840123
[47]
B. Signer, U. Kurmann, and M. Norrie. 2007. iGesture: A General Gesture Recogni- tion Framework. In Proceedings of the Ninth International Conference on Document Analysis and Recognition - Volume 02 (ICDAR '07). IEEE Computer Society, Washington, DC, USA, 954--958. http://dl.acm.org/citation.cfm?id=1304596.1304930
[48]
David Bingham Skalak. 1997. Prototype Selection for Composite Nearest Neighbor Classifiers. Ph.D. Dissertation. Amherst, MA, USA. UMI Order No. GAX97--37585.
[49]
Charles A. Sutton and Andrew McCallum. 2012. An Introduction to Conditional Random Fields. Foundations and Trends in Machine Learning 4, 4 (2012), 267--373.
[50]
Scott Swigart. 2005. Easily Write Custom Gesture Recognizers for Your Tablet PC Applications. Retrieved September 9, 2017 from https://msdn.microsoft.com/ en-us/library/aa480673.aspx.
[51]
Eugene M. Taranta, II and Joseph J. LaViola, Jr. 2015. Penny Pincher: A Blazing Fast, Highly Accurate $-family Recognizer. In Proceedings of the 41st Graphics Interface Conference (GI '15). Canadian Information Processing Society, Toronto, Ont., Canada, Canada, 195--202. http://dl.acm.org/citation.cfm?id= 2788890.2788925
[52]
Eugene M. Taranta II, Amirreza Samiei, Mehran Maghoumi, Pooya Khaloo, Corey R. Pittman, and Joseph J. LaViola Jr. 2017. Jackknife: A Reliable Recognizer with Few Samples and Many Modalities. In Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems (CHI '17). ACM, New York, NY, USA, 5850--5861.
[53]
Huawei Tu, Xiangshi Ren, and Shumin Zhai. 2015. Differences and Similarities Between Finger and Pen Stroke Gestures on Stationary and Mobile Devices. ACM Trans. Comput.-Hum. Interact. 22, 5, Article 22 (Aug. 2015), 39 pages.
[54]
Jean Vanderdonckt, Bruno Dumas, and Mauro Cherubini. 2018. Comparing Some Distances in Template-based 2D Gesture Recognition. In Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems (CHI EA '18). ACM, New York, NY, USA, Article LBW121, 6 pages.
[55]
Radu-Daniel Vatavu. 2017. Improving Gesture Recognition Accuracy on Touch Screens for Users with Low Vision. In Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems, Denver, CO, USA, May 06-11, 2017., Gloria Mark, Susan R. Fussell, Cliff Lampe, m. c. schraefel, Juan Pablo Hourcade, Caroline Appert, and Daniel Wigdor (Eds.). ACM, 4667--4679.
[56]
Radu-Daniel Vatavu. 2011. The Effect of Sampling Rate on the Performance of Template-based Gesture Recognizers. In Proceedings of the 13th International Conference on Multimodal Interfaces (ICMI '11). ACM, New York, NY, USA, 271--278.
[57]
Radu-Daniel Vatavu. 2012. 1F: One Accessory Feature Design for Gesture Recognizers. In Proceedings of the 2012 ACM International Conference on Intelligent User Interfaces (IUI '12). ACM, New York, NY, USA, 297--300.
[58]
Radu-Daniel Vatavu, Lisa Anthony, and Jacob Wobbrock. 2018. Q: A Super- Quick, Articulation-Invariant Stroke-Gesture Recognizer for Low-Resource De- vices. In Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI '18). ACM, New York, NY, USA, 623--635.
[59]
Radu-Daniel Vatavu, Géry Casiez, and Laurent Grisoni. 2013. Small, Medium, or Large?: Estimating the User-perceived Scale of Stroke Gestures. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13). ACM, New York, NY, USA, 277--280.
[60]
Radu-Daniel Vatavu, Laurent Grisoni, and Stefan-Gheorghe Pentiuc. 2009. Gesture-Based Human-Computer Interaction and Simulation. Springer-Verlag, Berlin, Heidelberg, Chapter Gesture Recognition Based on Elastic Deformation Energies, 1--12.
[61]
Jo Vermeulen, Kris Luyten, Elise van den Hoven, and Karin Coninx. 2013. Crossing the bridge over Norman's gulf of execution: revealing feedforward's true identity. In 2013 ACM SIGCHI Conference on Human Factors in Computing Systems, CHI '13, Paris, France, April 27-May 2, 2013, Wendy E. Mackay, Stephen A. Brewster, and Susanne Bødker (Eds.). ACM, 1931--1940.
[62]
Don Willems, Ralph Niels, Marcel van Gerven, and Louis Vuurpijl. 2009. Iconic and Multi-stroke Gesture Recognition. Pattern Recogn. 42, 12 (Dec. 2009), 3303--3312.
[63]
Jacob O. Wobbrock, Andrew D. Wilson, and Yang Li. 2007. Gestures Without Libraries, Toolkits or Training: A $1 Recognizer for User Interface Prototypes. In Proceedings of the 20th Annual ACM Symposium on User Interface Software and Technology (UIST '07). ACM, New York, NY, USA, 159--168.
[64]
Jiahui Wu, Gang Pan, Daqing Zhang, Guande Qi, and Shijian Li. 2009. Gesture Recognition with a 3-D Accelerometer. In Proceedings of the 6th International Conference on Ubiquitous Intelligence and Computing (UIC '09). Springer-Verlag, Berlin, Heidelberg, 25--38.
[65]
Daiki Yamaji. 2016. A Fast and Lightweight Unistroke Recognizer for Large User- defined vocabulary (in Japanese). Ph.D. Dissertation. University of Tsukuba, Ibaraki, Japan. Retrieved September 2, 2017 from http://www.iplab.cs.tsukuba.ac. jp/master-e/.
[66]
Yina Ye and Petteri Nurmi. 2015. Gestimator: Shape and Stroke Similarity Based Gesture Recognition. In Proceedings of the 2015 ACM on International Conference on Multimodal Interaction (ICMI '15). ACM, New York, NY, USA, 219--226.

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cover image ACM Other conferences
ICMI '18: Proceedings of the 20th ACM International Conference on Multimodal Interaction
October 2018
687 pages
ISBN:9781450356923
DOI:10.1145/3242969
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 02 October 2018

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Author Tags

  1. articulation invariance
  2. isochronicity
  3. isometricity
  4. isoparameterization
  5. local shape distance
  6. stroke gesture recognition

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ICMI '18
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  • SIGCHI

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ICMI '18 Paper Acceptance Rate 63 of 149 submissions, 42%;
Overall Acceptance Rate 453 of 1,080 submissions, 42%

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