Friedrich Niemann

Mr. Friedrich Niemann

TU Dortmund University / Chair of Materials Handling and Warehousing (FLW)
orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 July 2020 in Sensors
Verified
Journal Article
Open access
PDF file
Friedrich NiemannFriedrich Niemann
Friedrich Niemann
CRChristopher Reining
Christopher Reining
FRFernando Moya Rueda
Fernando Moya Rueda
NNNilah Ravi Nair
Nilah Ravi Nair
JSJanine Anika Steffens
Janine Anika Steffens
MHMichael Ten Hompel
Michael Ten Hompel
Optimizations in logistics require recognition and analysis of human activities. The potential of sensor-based human activity recognition (HAR) in logistics is not yet well explored. Despite a significant increase in HAR datasets in the past twenty years, no available dataset depicts activities in logistics. This contribution presents the first freely accessible logistics-dataset. In the ’Innovationlab Hybrid Services in Logistics’ at TU Dortmund University, two picking and one packing scenarios were recreated. Fourteen subjects were recorded individually when performing warehousing activities using Optical marker-based Motion Capture (OMoCap), inertial measurement units (IMUs), and an RGB camera. A total of 758 min of recordings were labeled by 12 annotators in 474 person-h. All the given data have been labeled and categorized into 8 activity classes and 19 binary coarse-semantic descriptions, also called attributes. The dataset is deployed for solving HAR using deep networks.

24 July 2019 in Information
Verified
Journal Article
Open access
PDF file
CRChristopher Reining
Christopher Reining
Friedrich NiemannFriedrich Niemann
Friedrich Niemann
FRFernando Moya Rueda
Fernando Moya Rueda
GFGernot A. Fink
Gernot A. Fink
MHMichael Ten Hompel
Michael Ten Hompel
This contribution provides a systematic literature review of Human Activity Recognition for Production and Logistics. An initial list of 1243 publications that complies with predefined Inclusion Criteria was surveyed by three reviewers. Fifty-two publications that comply with the Content Criteria were analysed regarding the observed activities, sensor attachment, utilised datasets, sensor technology and the applied methods of HAR. This review is focused on applications that use marker-based Motion Capturing or Inertial Measurement Units. The analysed methods can be deployed in industrial application of Production and Logistics or transferred from related domains into this field. The findings provide an overview of the specifications of state-of-the-art HAR approaches, statistical pattern recognition and deep architectures and they outline a future road map for further research from a practitioner’s perspective.

25 December 2021 in Sensors
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Journal Article
Open access
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Friedrich NiemannFriedrich Niemann
Friedrich Niemann
SLStefan Lüdtke
Stefan Lüdtke
CBChristian Bartelt
Christian Bartelt
MHMichael Ten Hompel
Michael Ten Hompel
The automatic, sensor-based assessment of human activities is highly relevant for production and logistics, to optimise the economics and ergonomics of these processes. One challenge for accurate activity recognition in these domains is the context-dependence of activities: Similar movements can correspond to different activities, depending on, e.g., the object handled or the location of the subject. In this paper, we propose to explicitly make use of such context information in an activity recognition model. Our first contribution is a publicly available, semantically annotated motion capturing dataset of subjects performing order picking and packaging activities, where context information is recorded explicitly. The second contribution is an activity recognition model that integrates movement data and context information. We empirically show that by using context information, activity recognition performance increases substantially. Additionally, we analyse which of the pieces of context information is most relevant for activity recognition. The insights provided by this paper can help others to design appropriate sensor set-ups in real warehouses for time management.

1 January 2017 in Transportation Research Procedia
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Journal Article
Open access
CTCarina Thaller
Carina Thaller
Friedrich NiemannFriedrich Niemann
Friedrich Niemann
BDBenjamin Dahmen
Benjamin Dahmen
UCUwe Clausen
Uwe Clausen
BLBert Leerkamp
Bert Leerkamp

1 March 2020
Verified
Conference Paper
Closed access
CRChristopher Reining
Christopher Reining
FRFernando Moya Rueda
Fernando Moya Rueda
Friedrich NiemannFriedrich Niemann
Friedrich Niemann
GFGernot A. Fink
Gernot A. Fink
MHMichael Ten Hompel
Michael Ten Hompel
This contribution proposes an approach for annotating human actions and their coarse semantic descriptions for multichannel time-series. For this purpose, a new dataset that consists of Optical Motion Capturing and IMU time-series data for industrial deployment is created and annotated by 6 individuals. The expenditure of time for labelling, both classes and semantic attributes, and the annotation consistency are examined. The initial annotations are revised by a single domain expert to measure its effect on the overall between-individual consistency. Consistency measurements by means of Cohen's κ are analysed. The results give insights on the effort for dataset creation in the field of Human Activity Recognition for industrial application. The Cohen's κ for consistency assessment was moderate and substantial for the initial annotation, and it increased slightly after revision.

1 January 2022
Verified
Book Chapter
Closed access
PDF file
KIKatja Ickstadt
Katja Ickstadt
MPMarkus Pauly
Markus Pauly
MMMarco Motta
Marco Motta
SHSwetlana Herbrandt
Swetlana Herbrandt
NMNikolas Moroff
Nikolas Moroff
MHMichael Ten Hompel
Michael Ten Hompel