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Bihler, Markus; Vahl, Matthias; Krause, Tom; Kiefer, Gundolf

Real-time Line Detection in Omnidirectional Images with an FPGA for Monitoring and Reporting Applications in Production Processes


Lukas, Uwe von (Ed.) et al.: Go-3D 2015: Computergraphik für die Praxis : Tagungsband zur Konferenz Go-3D 2015. Stuttgart: Fraunhofer Verlag, 2015, pp. 81-96

Go-3D <7, 2015, Rostock, Germany>

In this paper we introduce an approach to FPGA-based line detection in omnidirectional images, taken by an upward-oriented camera. This approach can be used as a basic technology for indoor positioning and therefore for many applications which need to estimate the user positions inside electromagnetically shielded buildings or ship hulls. The detected lines can be compared with lines from the edge model which is derived from the existing CAD model of the surrounding room. The paper starts with a short summary of related work in the domain of indoor positioning, the mathematics behind line detection by the Hough Transformation (HT) as well as an explanation of the Omnidirectional Hough Transform (OHT). In the second part the context of the main contribution is described including the hardware setup and application requirements. After that a novel approach to line detection using the OHT on FPGA is presented and the OHT Module is introduced. Then we show the results and make a comparison between our FPGA implementation and the implementation on a desktop computer. The paper ends up with a conclusion and an outlook to future works.

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Krause, Tom; Lukas, Uwe von (Betreuer); Vahl, Matthias (Betreuer); Gutzeit, Enrico (Betreuer)

Ereignisdetektion in Bildfolgen


Rostock, Univ., Diplomarbeit, 2014

Diese Diplomarbeit behandelt die Ereigniserkennung in Bildfolgen. Dabei soll der Anwendungsfall "Ereignisdetektion in an Bord von Fischereifahrzeugen aufgenommenen Überwachungsvideos" adressiert werden. Nach einem Überblick über die Grundlagen werden Konzeption und Umsetzung eines Systems erläutert, welches die Ereigniserkennung erleichtern soll. Bedingt durch den Anwendungsfall wird dabei vermehrt auf die Erkennung von Meerwasser eingegangen, welches einen wichtigen Kontext für viele Ereignisse da stellt.