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May 31, 2026ISPRS annals of the photogrammetry, remote sensing and spatial information sciencesOpen Access

Guided Leak Detection in District Heating Networks from Aerial Thermal Imagery

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Authors

TRThomas RischAWAlexander WeidauerAHA. Hadavand

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Overview

Randomized trial shows improved leak detection in district heating networks, suggesting enhanced maintenance efficiency.

Key Points

  • This research aims to improve leak detection in district heating networks using aerial thermal imaging while reducing false positive rates.
  • Developed a methodology integrating thermal raster data, thermal isolines, and statistical analyses.
  • Utilized Google Street View data for contextual verification of detected anomalies.
  • Evaluated the approach on a long-wavelength thermal dataset from Nuremberg, Germany.
  • Detected anomalies increased from 908 to 1,660 compared to conventional methods.
  • Significantly reduced false positive detections during analysis.
  • Identified small temperature differences indicating critical, previously unnoticed energy losses.

Cite This Study

Risch et al. (2026) studied this question.

synapsesocial.com/papers/6a1bd12d5783ba022b6fcc93https://doi.org/10.5194/isprs-annals-x-4-w8-2025-623-2026
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