Search Results for author: Ananya Gupta

Found 6 papers, 1 papers with code

UATTA-ENS: Uncertainty Aware Test Time Augmented Ensemble for PIRC Diabetic Retinopathy Detection

1 code implementation6 Nov 2022 Pratinav Seth, Adil Khan, Ananya Gupta, Saurabh Kumar Mishra, Akshat Bhandari

Deep Ensemble Convolutional Neural Networks has become a methodology of choice for analyzing medical images with a diagnostic performance comparable to a physician, including the diagnosis of Diabetic Retinopathy.

Diabetic Retinopathy Detection

Deep Learning-based Aerial Image Segmentation with Open Data for Disaster Impact Assessment

no code implementations10 Jun 2020 Ananya Gupta, Simon Watson, Hujun Yin

Experimental results show that pretraining on ImageNet usually improves the segmentation performance for a number of models.

Disaster Response Image Segmentation +3

CNN-Based Semantic Change Detection in Satellite Imagery

no code implementations10 Jun 2020 Ananya Gupta, Elisabeth Welburn, Simon Watson, Hujun Yin

Graph theory is combined with the CNN output for detecting semantic changes in road networks with OpenStreetMap data.

Change Detection Management +1

3D Point Cloud Feature Explanations Using Gradient-Based Methods

no code implementations9 Jun 2020 Ananya Gupta, Simon Watson, Hujun Yin

Driven by the insight that 3D data is inherently sparse, we visualise the features learnt by a voxel-based classification network and show that these features are also sparse and can be pruned relatively easily, leading to more efficient neural networks.

Tree Annotations in LiDAR Data Using Point Densities and Convolutional Neural Networks

no code implementations9 Jun 2020 Ananya Gupta, Jonathan Byrne, David Moloney, Simon Watson, Hujun Yin

The third method is a scaled version of the PointNet++ method and works directly on outdoor point clouds and achieves an F_score of 82. 1% on the ISPRS benchmark dataset, comparable to the state-of-the-art methods but with increased efficiency.

Multi-Temporal Aerial Image Registration Using Semantic Features

no code implementations30 Aug 2019 Ananya Gupta, Yao Peng, Simon Watson, Hujun Yin

A semantic feature extraction method for multitemporal high resolution aerial image registration is proposed in this paper.

Image Registration Semantic Segmentation

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