Article (Scientific journals)
Towards zero-shot learning in 3D change detection: improving generalization with custom augmentations and evaluation
Contu, Riccardo; Marsocci, Valerio; Coletta, Virginia et al.
2025In European Journal of Remote Sensing, 58 (1)
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Keywords :
3D change detection; 3D change detection metrics; data augmentation; remote sensing; zero-shot learning; Data augmentation; Deep learning; Remote-sensing
Abstract :
[en] Detecting and quantifying changes is crucial for monitoring transformations of the Earth’s surface. It is thus essential to employ methods that can effectively retrieve both 2D and 3D changes over time. The MultiTask Bitemporal Images Transformer (MTBIT) was recently introduced to tackle 2D and 3D Change Detection (CD) tasks using bi-temporal optical images. Despite strong performances on existing benchmarks, MTBIT shows some limitations, i.e. a pronounced tendency to overfit the training distribution and difficulty in inferring extreme values, which motivates the need for improvements. We hence propose a new set of custom augmentations, applied individually or in specific combinations, to discern intricate geometries small structures and subtle terrain changes. Furthermore, to address conventional evaluation metrics' limitations we introduce the true positive RMSE (tpRMSE) metric which provides a more comprehensive understanding of MTBIT efficacy. The most successful augmentation combination reduces cRMSE to 5.88 m and tpRMSE to 5.34 m, from 6.33 m and 5.60 m of the baseline, respectively. Finally, a first zero-shot learning experiment is carried out on a new small dataset, achieving promising improvements towards domain generalization. In summary, the proposed contributions enhance the practical utility and reliability of MTBIT in real-world applications, addressing critical challenges in the field of Remote Sensing CD.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Contu, Riccardo;  Department of Civil, Edil and Environmental Engineering, Sapienza University of Rome, Rome, Italy
Marsocci, Valerio;  Geomatics Research Group, KU Leuven, Gent, Belgium
Coletta, Virginia;  Department of Civil, Edil and Environmental Engineering, Sapienza University of Rome, Rome, Italy
Ravanelli, Roberta  ;  Université de Liège - ULiège > Sphères ; Department of Civil, Edil and Environmental Engineering, Sapienza University of Rome, Rome, Italy
Scardapane, Simone;  Department of Information, Electronics, and Telecommunications Engineering, Sapienza University of Rome, Rome, Italy
Language :
English
Title :
Towards zero-shot learning in 3D change detection: improving generalization with custom augmentations and evaluation
Publication date :
2025
Journal title :
European Journal of Remote Sensing
eISSN :
2279-7254
Publisher :
Taylor and Francis Ltd.
Volume :
58
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 May 2025

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