Long-term monitoring of plants is crucial for many practical applications in agriculture. This task requires associating the sensor data over long timeframes to a single individual object representing a unique symbolic instance. In general, this is a well-known tracking problem, but state-of-the-art trackers cannot track objects over their whole lifetime reliably, due to occlusions and changes in the object’s appearance, thus only sub-tracks/tracklets are created. This paper proposes a methodology to consolidate the tracklets into the real track. For the consolidation of two tracklets matching costs using spatial, temporal and appearance-based information are calculated and the overall matching of the tracklets is optimised using the Hungarian algorithm. Using a strawberry tracking dataset for the evaluation, the presented methodology shows promising results and can match the tracklets with an accuracy of 72.5%.

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Consolidation of Symbolic Instances Using Sensor Data via Tracklet Merging for Long-Term Monitoring of Crops

  • Mark Niemeyer,
  • Joachim Hertzberg,
  • Grzegorz Cielniak

摘要

Long-term monitoring of plants is crucial for many practical applications in agriculture. This task requires associating the sensor data over long timeframes to a single individual object representing a unique symbolic instance. In general, this is a well-known tracking problem, but state-of-the-art trackers cannot track objects over their whole lifetime reliably, due to occlusions and changes in the object’s appearance, thus only sub-tracks/tracklets are created. This paper proposes a methodology to consolidate the tracklets into the real track. For the consolidation of two tracklets matching costs using spatial, temporal and appearance-based information are calculated and the overall matching of the tracklets is optimised using the Hungarian algorithm. Using a strawberry tracking dataset for the evaluation, the presented methodology shows promising results and can match the tracklets with an accuracy of 72.5%.