Video-Based Analysis and Reporting of Riding Behavior in Cyclocross Segments

Video-based trajectory analysis might be rather well discussed in sports, such as soccer or basketball, but in cycling, this is far less common. In this paper, a video processing pipeline to extract riding lines in cyclocross races is presented. The pipeline consists of a stepwise analysis process t...

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Main Authors: Jelle De Bock, Steven Verstockt
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/22/7619
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author Jelle De Bock
Steven Verstockt
author_facet Jelle De Bock
Steven Verstockt
author_sort Jelle De Bock
collection DOAJ
description Video-based trajectory analysis might be rather well discussed in sports, such as soccer or basketball, but in cycling, this is far less common. In this paper, a video processing pipeline to extract riding lines in cyclocross races is presented. The pipeline consists of a stepwise analysis process to extract riding behavior from a region (i.e., the fence) in a video camera feed. In the first step, the riders are identified by an Alphapose skeleton detector and tracked with a spatiotemporally aware pose tracker. Next, each detected pose is enriched with additional meta-information, such as rider modus (e.g., sitting on the saddle or standing on the pedals) and detected team (based on the worn jerseys). Finally, a post-processor brings all the information together and proposes ride lines with meta-information for the riders in the fence. The presented methodology can provide interesting insights, such as intra-athlete ride line clustering, anomaly detection, and detailed breakdowns of riding and running durations within the segment. Such detailed rider info can be very valuable for performance analysis, storytelling, and automatic summarization.
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spelling doaj.art-b2f1525ead9f4306a3e170c8599153282023-11-23T01:26:43ZengMDPI AGSensors1424-82202021-11-012122761910.3390/s21227619Video-Based Analysis and Reporting of Riding Behavior in Cyclocross SegmentsJelle De Bock0Steven Verstockt1IDLab, Ghent University—IMEC, Technologiepark-Zwijnaarde 122, 9052 Ghent, BelgiumIDLab, Ghent University—IMEC, Technologiepark-Zwijnaarde 122, 9052 Ghent, BelgiumVideo-based trajectory analysis might be rather well discussed in sports, such as soccer or basketball, but in cycling, this is far less common. In this paper, a video processing pipeline to extract riding lines in cyclocross races is presented. The pipeline consists of a stepwise analysis process to extract riding behavior from a region (i.e., the fence) in a video camera feed. In the first step, the riders are identified by an Alphapose skeleton detector and tracked with a spatiotemporally aware pose tracker. Next, each detected pose is enriched with additional meta-information, such as rider modus (e.g., sitting on the saddle or standing on the pedals) and detected team (based on the worn jerseys). Finally, a post-processor brings all the information together and proposes ride lines with meta-information for the riders in the fence. The presented methodology can provide interesting insights, such as intra-athlete ride line clustering, anomaly detection, and detailed breakdowns of riding and running durations within the segment. Such detailed rider info can be very valuable for performance analysis, storytelling, and automatic summarization.https://www.mdpi.com/1424-8220/21/22/7619pose estimationsportsobject detectionsports data analysis
spellingShingle Jelle De Bock
Steven Verstockt
Video-Based Analysis and Reporting of Riding Behavior in Cyclocross Segments
Sensors
pose estimation
sports
object detection
sports data analysis
title Video-Based Analysis and Reporting of Riding Behavior in Cyclocross Segments
title_full Video-Based Analysis and Reporting of Riding Behavior in Cyclocross Segments
title_fullStr Video-Based Analysis and Reporting of Riding Behavior in Cyclocross Segments
title_full_unstemmed Video-Based Analysis and Reporting of Riding Behavior in Cyclocross Segments
title_short Video-Based Analysis and Reporting of Riding Behavior in Cyclocross Segments
title_sort video based analysis and reporting of riding behavior in cyclocross segments
topic pose estimation
sports
object detection
sports data analysis
url https://www.mdpi.com/1424-8220/21/22/7619
work_keys_str_mv AT jelledebock videobasedanalysisandreportingofridingbehaviorincyclocrosssegments
AT stevenverstockt videobasedanalysisandreportingofridingbehaviorincyclocrosssegments