This map shows the geographic impact of Stephan Kopf's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Stephan Kopf with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Stephan Kopf more than expected).
This network shows the impact of papers produced by Stephan Kopf. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Stephan Kopf. The network helps show where Stephan Kopf may publish in the future.
Co-authorship network of co-authors of Stephan Kopf
This figure shows the co-authorship network connecting the top 25 collaborators of Stephan Kopf.
A scholar is included among the top collaborators of Stephan Kopf based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Stephan Kopf. Stephan Kopf is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Kopf, Stephan, et al.. (2013). HomeQuiz: Blending Paper Sheets with Mobile Self-Assessment Tests. EdMedia: World Conference on Educational Media and Technology. 2013(1). 1446–1454.1 indexed citations
5.
Kopf, Stephan, et al.. (2013). Social Video: A Collaborative Video Annotation Environment to Support E-Learning. MADOC (University of Mannheim). 2013(1). 1228–1237.3 indexed citations
6.
Guthier, Benjamin, Johannes Kiess, Stephan Kopf, & Wolfgang Effelsberg. (2013). Seam carving for stereoscopic video. 26. 1–4.11 indexed citations
Kopf, Stephan, et al.. (2012). Integrating a Lightweight Mobile Quiz on Mobile Devices into the Existing University Infrastructure. EdMedia: World Conference on Educational Media and Technology. 2012(1). 1901–1907.6 indexed citations
10.
Guthier, Benjamin, Stephan Kopf, Matthias Wichtlhuber, & Wolfgang Effelsberg. (2012). Parallel algorithms for histogram-based image registration. International Conference on Systems, Signals and Image Processing. 172–175.3 indexed citations
Kiess, Johannes, Stephan Kopf, Benjamin Guthier, & Wolfgang Effelsberg. (2010). Seam carving with improved edge preservation. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 7542. 75420G–75420G.23 indexed citations
14.
Kopf, Stephan, et al.. (2007). EDL-Editor: Eine Anwendung zur automatischen Aufbereitung von Vorlesungsvideos. DeLFI. 33–44.1 indexed citations
15.
Kopf, Stephan, et al.. (2007). Automatic FSM-Based Video Directors for Lecture Recording. EdMedia: World Conference on Educational Media and Technology. 2007(1). 1475–1480.1 indexed citations
Farin, D., et al.. (2003). Segmentation and Classification of Moving Video Objects. TU/e Research Portal. 561–591.18 indexed citations
20.
Kopf, Stephan, Thomas Haenselmann, Dirk Farin, & Wolfgang Effelsberg. (2003). <title>Automatic generation of summaries for the Web</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5307. 417–428.13 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.