Search Results for author: Ujjwal Bhattacharya

Found 10 papers, 2 papers with code

Fisheye Camera and Ultrasonic Sensor Fusion For Near-Field Obstacle Perception in Bird's-Eye-View

no code implementations1 Feb 2024 Arindam Das, Sudarshan Paul, Niko Scholz, Akhilesh Kumar Malviya, Ganesh Sistu, Ujjwal Bhattacharya, Ciarán Eising

Therefore, we present, to our knowledge, the first end-to-end multimodal fusion model tailored for efficient obstacle perception in a bird's-eye-view (BEV) perspective, utilizing fisheye cameras and ultrasonic sensors.

Autonomous Driving Sensor Fusion

Revisiting Modality Imbalance In Multimodal Pedestrian Detection

no code implementations24 Feb 2023 Arindam Das, Sudip Das, Ganesh Sistu, Jonathan Horgan, Ujjwal Bhattacharya, Edward Jones, Martin Glavin, Ciarán Eising

Multimodal learning, particularly for pedestrian detection, has recently received emphasis due to its capability to function equally well in several critical autonomous driving scenarios such as low-light, night-time, and adverse weather conditions.

Autonomous Driving Pedestrian Detection

UnShadowNet: Illumination Critic Guided Contrastive Learning For Shadow Removal

no code implementations29 Mar 2022 Subhrajyoti Dasgupta, Arindam Das, Senthil Yogamani, Sudip Das, Ciaran Eising, Andrei Bursuc, Ujjwal Bhattacharya

Shadows are frequently encountered natural phenomena that significantly hinder the performance of computer vision perception systems in practical settings, e. g., autonomous driving.

Autonomous Driving Contrastive Learning +1

Spatio-Contextual Deep Network Based Multimodal Pedestrian Detection For Autonomous Driving

no code implementations26 May 2021 Kinjal Dasgupta, Arindam Das, Sudip Das, Ujjwal Bhattacharya, Senthil Yogamani

Fusion of these two encoded features takes place inside a multimodal feature embedding module (MuFEm) consisting of several groups of a pair of Graph Attention Network and a feature fusion unit.

Autonomous Driving Graph Attention +1

Approximate Nearest Neighbour Search on Privacy-aware Encoding of User Locations to Identify Susceptible Infections in Simulated Epidemics

1 code implementation19 Apr 2020 Chandan Biswas, Debasis Ganguly, Ujjwal Bhattacharya

In this paper, we investigate how effectively and efficiently can such a list of susceptible people be found given a list of infected persons and their locations.

Information Retrieval Retrieval

An End-to-End Framework for Unsupervised Pose Estimation of Occluded Pedestrians

no code implementations15 Feb 2020 Sudip Das, Perla Sai Raj Kishore, Ujjwal Bhattacharya

To tackle this problem for training the network, we make use of a pose estimation dataset, MS-COCO, and employ unsupervised adversarial instance-level domain adaptation for estimating the entire pose of occluded pedestrians.

Domain Adaptation Instance Segmentation +3

Scale-Invariant Multi-Oriented Text Detection in Wild Scene Images

no code implementations15 Feb 2020 Kinjal Dasgupta, Sudip Das, Ujjwal Bhattacharya

Automatic detection of scene texts in the wild is a challenging problem, particularly due to the difficulties in handling (i) occlusions of varying percentages, (ii) widely different scales and orientations, (iii) severe degradations in the image quality etc.

Text Detection

Seek and You Will Find: A New Optimized Framework for Efficient Detection of Pedestrian

no code implementations21 Dec 2019 Sudip Das, Partha Sarathi Mukherjee, Ujjwal Bhattacharya

Studies of object detection and localization, particularly pedestrian detection have received considerable attention in recent times due to its several prospective applications such as surveillance, driving assistance, autonomous cars, etc.

object-detection Object Detection +1

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