Search Results for author: Akshay Gopalkrishnan

Found 8 papers, 2 papers with code

Multi-Frame, Lightweight & Efficient Vision-Language Models for Question Answering in Autonomous Driving

1 code implementation28 Mar 2024 Akshay Gopalkrishnan, Ross Greer, Mohan Trivedi

Vision-Language Models (VLMs) and Multi-Modal Language models (MMLMs) have become prominent in autonomous driving research, as these models can provide interpretable textual reasoning and responses for end-to-end autonomous driving safety tasks using traffic scene images and other data modalities.

Autonomous Driving Language Modelling +3

Vision-based Analysis of Driver Activity and Driving Performance Under the Influence of Alcohol

no code implementations14 Sep 2023 Ross Greer, Akshay Gopalkrishnan, Sumega Mandadi, Pujitha Gunaratne, Mohan M. Trivedi, Thomas D. Marcotte

About 30% of all traffic crash fatalities in the United States involve drunk drivers, making the prevention of drunk driving paramount to vehicle safety in the US and other locations which have a high prevalence of driving while under the influence of alcohol.

Robust Detection, Association, and Localization of Vehicle Lights: A Context-Based Cascaded CNN Approach and Evaluations

no code implementations27 Jul 2023 Akshay Gopalkrishnan, Ross Greer, Maitrayee Keskar, Mohan Trivedi

Vehicle light detection, association, and localization are required for important downstream safe autonomous driving tasks, such as predicting a vehicle's light state to determine if the vehicle is making a lane change or turning.

Autonomous Driving Data Augmentation

Patterns of Vehicle Lights: Addressing Complexities in Curation and Annotation of Camera-Based Vehicle Light Datasets and Metrics

no code implementations26 Jul 2023 Ross Greer, Akshay Gopalkrishnan, Maitrayee Keskar, Mohan Trivedi

Overall, this paper provides insights into the representation of vehicle lights and the importance of accurate annotations for training effective detection models in autonomous driving applications.

Autonomous Driving Trajectory Prediction

Robust Traffic Light Detection Using Salience-Sensitive Loss: Computational Framework and Evaluations

no code implementations8 May 2023 Ross Greer, Akshay Gopalkrishnan, Jacob Landgren, Lulua Rakla, Anish Gopalan, Mohan Trivedi

One of the most important tasks for ensuring safe autonomous driving systems is accurately detecting road traffic lights and accurately determining how they impact the driver's actions.

Autonomous Driving object-detection +1

CHAMP: Crowdsourced, History-Based Advisory of Mapped Pedestrians for Safer Driver Assistance Systems

no code implementations14 Jan 2023 Ross Greer, Lulua Rakla, Samveed Desai, Afnan Alofi, Akshay Gopalkrishnan, Mohan Trivedi

Moreover, we use the number of correct advisories, false advisories, and missed advisories to define precision and recall performance metrics to evaluate CHAMP.

Pedestrian Detection

Salient Sign Detection In Safe Autonomous Driving: AI Which Reasons Over Full Visual Context

no code implementations14 Jan 2023 Ross Greer, Akshay Gopalkrishnan, Nachiket Deo, Akshay Rangesh, Mohan Trivedi

Next, we use a custom salience loss function, Salience-Sensitive Focal Loss, to train a Deformable DETR object detection model in order to emphasize stronger performance on salient signs.

Autonomous Driving object-detection +2

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