no code implementations • 27 Aug 2023 • Chiranjibi Sitaula, Jagannath Aryal, Avik Bhattacharya
Classification of very high-resolution (VHR) aerial remote sensing (RS) images is a well-established research area in the remote sensing community as it provides valuable spatial information for decision-making.
1 code implementation • IEEE Geoscience and Remote Sensing Letters 2023 • Ali Jamali, Swalpa Kumar Roy, Avik Bhattacharya, Pedram Ghamisi
The PolSARFormer outperformed the Swin Transformer and FNet by the margin of 5. 86% and 17. 63%, in terms of average accuracy in the San Francisco data benchmark.
no code implementations • 20 Apr 2021 • Ushasi Chaudhuri, Biplab Banerjee, Avik Bhattacharya, Mihai Datcu
While we define a cross-modal triplet loss to ensure the discriminative nature of the shared space, an innovative cross-modal attention learning strategy is also proposed to guide feature extraction from the image domain exploiting information from the respective sketch counterpart.
1 code implementation • 12 Aug 2020 • Ushasi Chaudhuri, Biplab Banerjee, Avik Bhattacharya, Mihai Datcu
We perform a thorough bench-marking of this dataset and demonstrate that the proposed network outperforms other state-of-the-art methods for zero-shot sketch-based retrieval framework in remote sensing.
no code implementations • 27 Jun 2019 • Debanshu Ratha, Eric Pottier, Avik Bhattacharya, Alejandro C. Frery
The product of the total power (Span) with these weights provides the non-negative scattering power components.
1 code implementation • 9 Apr 2019 • Ushasi Chaudhuri, Biplab Banerjee, Avik Bhattacharya, Mihai Datcu
In particular, we are interested in two application scenarios: i) cross-modal retrieval between panchromatic (PAN) and multi-spectral imagery, and ii) multi-label image retrieval between very high resolution (VHR) images and speech based label annotations.
no code implementations • 1 Dec 2017 • Debanshu Ratha, Avik Bhattacharya, Alejandro C. Frery
This geodesic distance is obtained between an elementary target and the observed Kennaugh matrix, and it is further utilized to compute a similarity measure between scattering mechanisms.