The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLIV-M-3-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIV-M-3-2021, 149–153, 2021
https://doi.org/10.5194/isprs-archives-XLIV-M-3-2021-149-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIV-M-3-2021, 149–153, 2021
https://doi.org/10.5194/isprs-archives-XLIV-M-3-2021-149-2021

  10 Aug 2021

10 Aug 2021

ANALYSIS OF FOUR GENERATOR ARCHITECTURES OF C-GAN, LOSS FUNCTION, AND ANNOTATION METHOD FOR EPIPHYTE IDENTIFICATION

V. V. Sajithvariyar1, S. Aswin1, V. Sowmya1, K. P. Soman1, R. Sivanpillai2, and G. K. Brown3 V. V. Sajithvariyar et al.
  • 1Center for Computational Engineering and Networking, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, TN 641 112, India
  • 2Wyoming GIS Center, University of Wyoming, Laramie, WY 82072, USA
  • 3Department of Botany, University of Wyoming, Laramie, WY 82072, USA

Keywords: Deep Learning, GAN, Generator Network, Loss Function, SSIM, IoU

Abstract. The deep learning (DL) models require timely updates to continue their reliability and robustness in prediction, classification, and segmentation tasks. When the deep learning models are tested with a limited test set, the model will not reveal the drawbacks. Every deep learning baseline model needs timely updates by incorporating more data, change in architecture, and hyper parameter tuning. This work focuses on updating the Conditional Generative Adversarial Network (C-GAN) based epiphyte identification deep learning model by incorporating 4 different generator architectures of GAN and two different loss functions. The four generator architectures used in this task are Resnet-6. Resnet-9, Resnet-50 and Resnet-101. A new annotation method called background removed annotation was tested to analyse the improvement in the epiphyte identification protocol. All the results obtained from the model by changing the above parameters are reported using two common evaluation metrics. Based on the parameter tuning experiment, Resnet-6, and Resnet- 9, with binary cross-entropy (BCE) as the loss function, attained higher scores also Resnet-6 with MSE as loss function performed well. The new annotation by removing the background had minimal effect on identifying the epiphytes.