Christine Martindale
Christine Martindale, M. Sc.
Research Focus
Objective health data about subjects outside of the laboratory is important in order to analyse symptoms that cannot be reproduced in the laboratory environment. This health data needs to also be clinically applicable and accurate in order to use it for ‘in the wild’ athlete analysis and medical analysis. In order to achieve this large and diverse data sets of human motion recorded using unobtrusive, wearable sensors need to be collected and annotated, as well as generic or easily adaptable algorithms for processing the data need to be developed. Therefore my research focuses on collecting and analyzing diverse and realistic data sets of human motion where ground truth data on a stride level is available, developing smart annotation methods in order to reduce the labeling cost of large data sets, developing generic recognition algorithms which are capable of clinically relevant annotation and testing the applicability of common machine learning algorithms on heterogeneous gait data, specifically gait data from spastic patients.
- Machine learning in mobile gait analysis, especially of patients with spastic gait
- Semi-supervised methods for annotation of daily activity data for accurate gait analysis, or repetition analysis
- Since 02/2015
Ph.D. student in the Digital Sports Group, Pattern Recognition Lab, Friedrich-Alexander-Universität Erlangen-Nürnberg - 09/2013 – 09/2014
M. Sc. Biomedical Engineering at Imperial College LondonThesis in the Non-Invasive Surgery and Biopsy Laboratory. - 09/2013 – 01/2013
M. Sc. Electrical Engineering at the University of Cape Town.Research within the Power Systems Research Group and the Robotics Research Group. - 01/2009 – 12/2012
B. Sc. (Honours) Mechatronics Engineering at the University of Cape Town - 01/2003 – 12/2008
Secondary school at Dominican Convent High School Harare, Zimbabwe
2022
Inertial Gait Sensors to Measure Mobility and Functioning in Hereditary Spastic Paraplegia A Cross-sectional Multicenter Clinical Study
In: Neurology 99 (2022), p. E1079-E1089
ISSN: 0028-3878
DOI: 10.1212/WNL.0000000000200819
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2021
Functional gait measures correlate to fear of falling, and quality of life in patients with Hereditary Spastic Paraplegia: A cross-sectional study
In: Clinical Neurology and Neurosurgery 209 (2021), Article No.: 106888
ISSN: 0303-8467
DOI: 10.1016/j.clineuro.2021.106888
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Wearables-based multi-task gait and activity segmentation using recurrent neural networks
In: Neurocomputing 432 (2021), p. 250-261
ISSN: 0925-2312
DOI: 10.1016/j.neucom.2020.08.079
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2020
Indoor Trajectory Reconstruction of Walking, Jogging, and Running Activities Based on a Foot-Mounted Inertial Pedestrian Dead-Reckoning System
In: Sensors 20 (2020), p. 651
ISSN: 1424-8220
DOI: 10.3390/s20030651
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CNN-Based Estimation of Sagittal Plane Walking and Running Biomechanics From Measured and Simulated Inertial Sensor Data
In: Frontiers in Bioengineering and Biotechnology 8 (2020), p. 1-14
ISSN: 2296-4185
DOI: 10.3389/fbioe.2020.00604
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2019
A Mobile Solution for Rhythmic Auditory Stimulation Gait Training
2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (Berlin, 23. July 2019 - 27. July 2019)
In: 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2019
DOI: 10.1109/EMBC.2019.8857143
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Technical Validation of an Automated Mobile Gait Analysis System for Hereditary Spastic Paraplegia Patients
In: IEEE Journal of Biomedical and Health Informatics (2019)
ISSN: 2168-2194
DOI: 10.1109/JBHI.2019.2937574
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Hidden Markov Model-Based Smart Annotation for Benchmark Cyclic Activity Recognition Database Using Wearables
In: Sensors 198 (2019), Article No.: 1820
ISSN: 1424-8220
DOI: 10.3390/s19081820
URL: https://www.mdpi.com/1424-8220/19/8/1820
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2018
Segmentation of Gait Sequences in Sensor-Based Movement Analysis: A Comparison of Methods in Parkinson's Disease.
In: Sensors 18 (2018)
ISSN: 1424-8220
DOI: 10.3390/s18010145
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Segmentation of Gait Sequences in Sensor-Based Movement Analysis: A Comparison of Methods in Parkinson’s Disease
In: Sensors (2018)
ISSN: 1424-8220
DOI: 10.3390/s18010145
URL: http://www.mdpi.com/1424-8220/18/1/145
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Mobile Gait Analysis Using Personalised Hidden Markov Models for Hereditary Spastic Paraplegia Patients
In: 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2018
DOI: 10.1109/EMBC.2018.8513508
URL: https://www.mad.tf.fau.de/files/2018/09/embc2018_martindale.pdf
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Smart Annotation Tool for Multi-sensor gait based daily activity data
In: 2018 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops) 2018
DOI: 10.1109/PERCOMW.2018.8480193
URL: https://www.mad.tf.fau.de/files/2018/09/percom2018_martindale.pdf
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Synchronized sensor insoles for clinical gait analysis in home-monitoring applications
DOI: 10.1515/cdbme-2018-0103
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Browsing through sealed historical manuscripts by using 3-D computed tomography with low-brilliance X-ray sources
In: Scientific Reports 8 (2018), p. 15335
ISSN: 2045-2322
DOI: 10.1038/s41598-018-33685-4
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2018/Stromer18-BTS.pdf
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2017
An Overview of Smart Shoes in the Internet of Health Things: Gait and Mobility Assessment in Health Promotion and Disease Monitoring
In: Applied Sciences 7 (2017), Article No.: 986
ISSN: 2076-3417
DOI: 10.3390/app7100986
URL: http://www.mdpi.com/2076-3417/7/10/986
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Automated Ski Velocity and Jump Length Determination in Ski Jumping Based on Unobtrusive and Wearable Sensors
In: Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 1 (2017), Article No.: 53
ISSN: 2474-9567
DOI: 10.1145/3130918
URL: https://www.mad.tf.fau.de/files/2017/10/2017-Groh-IMWUT-ASV.pdf
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Simultaneous Ultrasound Therapy and Monitoring of Microbubble-Seeded Acoustic Cavitation Using a Single-Element Transducer
In: IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control 64 (2017), p. 1234 - 1244
ISSN: 0885-3010
DOI: 10.1109/TUFFC.2017.2718513
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Smart Annotation of Cyclic Data Using Hierarchical Hidden Markov Models
In: Sensors 17 (2017)
ISSN: 1424-8220
DOI: 10.3390/s17102328
URL: http://www.mdpi.com/1424-8220/17/10/2328
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Segmentation of gait sequences using inertial sensor data in hereditary spastic paraplegia
Engineering in Medicine and Biology Society (EMBC), 2017 39th Annual International Conference of the IEEE (Jeju Island, South Korea, 11. July 2017 - 15. July 2017)
In: Engineering in Medicine and Biology Society (EMBC), 2017 39th Annual International Conference of the IEEE 2017
DOI: 10.1109/EMBC.2017.8037062
URL: https://www.mad.tf.fau.de/files/2018/09/embc2017_martindale.pdf
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2016
PATSY-I: A Corpus on Non-Native English Air Traffic Communication
12. Tagung Phonetik und Phonologie im deutschsprachigen Raum (Munich, 13. October 2016 - 14. October 2016)
In: Draxler, Christoph; Kleber, Felicitas (ed.): Tagungsband der 12. Tagung Phonetik und Phonologie im deutschsprachigen Raum 2016
DOI: 10.5282/ubm/epub.29405
URL: https://www5.informatik.uni-erlangen.de/Forschung/Publikationen/2016/Kaufhold16-PAC.pdf
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Workshop on wearables for sports
2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing (Heidelberg, 12. September 2016 - 16. September 2016)
In: 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing 2016
DOI: 10.1145/2968219.2968583
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Blood glucose level prediction based on support vector regression using mobile platforms
38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) (Orlando, Florida, USA, 16. August 2016 - 19. August 2016)
In: 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 2016
DOI: 10.1109/EMBC.2016.7591358
URL: https://www.mad.tf.fau.de/files/2017/06/2016-Reymann-EMBC-BGL.pdf
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Unobtrusive Real-time Heart Rate Variability Analysis for the Detection of Orthostatic Dysregulation
2016 IEEE 13th International Conference on Wearable and Implantable Body Sensor Networks (BSN) (San Francisco, CA, 14. June 2016 - 17. June 2016)
In: IEEE (ed.): 2016 IEEE 13th International Conference on Wearable and Implantable Body Sensor Networks (BSN) 2016
DOI: 10.1109/BSN.2016.7516257
URL: https://www.mad.tf.fau.de/files/2017/06/2016-Richer-BSN-URH.pdf
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Blind Path Obstacle Detector using Smartphone Camera and Line Laser Emitter
International Conference on Technology and Innovation in Sports, Health and Wellbeing (TISHW) (Vila Real, Portugal, 1. December 2016 - 3. December 2016)
DOI: 10.1109/TISHW.2016.7847770
URL: https://www.mad.tf.fau.de/files/2017/06/2016-Saffoury-BPO.pdf
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Smart soccer shoe: monitoring foot-ball interaction with shoe integrated textile pressure sensor matrix
The 20th International Conference on Symposium on Wearable Computers (Heidelberg, 14. September 2016 - 16. September 2016)
In: The 20th International Conference on Symposium on Wearable Computers 2016
DOI: 10.1145/2971763.2971784
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2014
Proof of concept data logger for non-active power measurement
In: 49th International Universities Power Engineering Conference (UPEC) 2014
DOI: 10.1109/UPEC.2014.6934627
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2013
Proof of concept data logger for non-active power (Master thesis, 2013)
URL: https://open.uct.ac.za/handle/11427/5170
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BA | 2019 | Brosig, Johanna | Semi-supervised techniques for combined activity recognition and gait analysis |
MLTS project | 2019 | Folle, Lukas; Böhner, Steven; Zillig, Tobias | Deep learning for HAR |
MP | 2019 | Kratzer, Thilo | Auto sk-learn for HAR |
MA | 2018 | Aholt, Katharina | A mobile solution for home-based assessment of rhythmic auditory stimulation of gait |
BA | 2018 | Felsheim, Rebecca | Power-aware on-line gait-analysis on shoe- mounted inertial sensor |
FP | 2018 | Junk, Florian | Gait analysis in HSP patients |
FP | 2017 | Gottschalk, Tristan | Activity recognition |
MP | 2017 | Koch, Tobias | LSTMs for activity recognition |
MP | 2017 | Skrecki, Marcel | LSTMs for activity recognition |
MA | 2016 | Bloch, Beatrice | Classification and automated extraction of clinically relevant gait parameters from spastic gait |
BA | 2016 | Strauß, Martin | Comparison of Segmentation and Classification algorithms for gait sequence analysis in Hereditary Spastic Paraplegia Patients |
BA | 2016 | Enzenhöfer, Verena | Enhancement of unsupervised learning for the segmentation of cyclic data using Hierarchical Hidden Markov Models |
FP | 2016 | Löber, Patrick | Android apps for IMUs in Kivy |
FP | 2016 | Oberländer, Jana | Activity recognition |
BA | 2015 | Dück, Kerstin | Development of an Automated Training Plan Management Application for Smartphones |
BA | 2015 | Kübler, Jonathan | Time Synchronization of Wearable Sensors |