Search Results for author: Akshay Rangesh

Found 19 papers, 7 papers with code

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

Safe Control Transitions: Machine Vision Based Observable Readiness Index and Data-Driven Takeover Time Prediction

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

To make safe transitions from autonomous to manual control, a vehicle must have a representation of the awareness of driver state; two metrics which quantify this state are the Observable Readiness Index and Takeover Time.

Structure Aware and Class Balanced 3D Object Detection on nuScenes Dataset

no code implementations25 May 2022 Sushruth Nagesh, Asfiya Baig, Savitha Srinivasan, Akshay Rangesh, Mohan Trivedi

Point cloud based methods have become increasingly popular for 3-D object detection, owing to their accurate depth information.

3D Object Detection Autonomous Driving +2

On Salience-Sensitive Sign Classification in Autonomous Vehicle Path Planning: Experimental Explorations with a Novel Dataset

no code implementations2 Dec 2021 Ross Greer, Jason Isa, Nachiket Deo, Akshay Rangesh, Mohan M. Trivedi

Safe path planning in autonomous driving is a complex task due to the interplay of static scene elements and uncertain surrounding agents.

Autonomous Driving

Predicting Take-over Time for Autonomous Driving with Real-World Data: Robust Data Augmentation, Models, and Evaluation

no code implementations27 Jul 2021 Akshay Rangesh, Nachiket Deo, Ross Greer, Pujitha Gunaratne, Mohan M. Trivedi

Using the augmented dataset, we develop and train take-over time (TOT) models that operate sequentially on mid and high-level features produced by computer vision algorithms operating on different driver-facing camera views, showing models trained on the augmented dataset to outperform the initial dataset.

Autonomous Driving Data Augmentation

Autonomous Vehicles that Alert Humans to Take-Over Controls: Modeling with Real-World Data

no code implementations23 Apr 2021 Akshay Rangesh, Nachiket Deo, Ross Greer, Pujitha Gunaratne, Mohan M. Trivedi

With increasing automation in passenger vehicles, the study of safe and smooth occupant-vehicle interaction and control transitions is key.

Autonomous Vehicles

LaneAF: Robust Multi-Lane Detection with Affinity Fields

1 code implementation22 Mar 2021 Hala Abualsaud, Sean Liu, David Lu, Kenny Situ, Akshay Rangesh, Mohan M. Trivedi

This study presents an approach to lane detection involving the prediction of binary segmentation masks and per-pixel affinity fields.

Clustering Lane Detection

TrackMPNN: A Message Passing Graph Neural Architecture for Multi-Object Tracking

no code implementations11 Jan 2021 Akshay Rangesh, Pranav Maheshwari, Mez Gebre, Siddhesh Mhatre, Vahid Ramezani, Mohan M. Trivedi

This study follows many classical approaches to multi-object tracking (MOT) that model the problem using dynamic graphical data structures, and adapts this formulation to make it amenable to modern neural networks.

Autonomous Driving Multi-Object Tracking +1

Gaze Preserving CycleGANs for Eyeglass Removal & Persistent Gaze Estimation

1 code implementation6 Feb 2020 Akshay Rangesh, Bo-Wen Zhang, Mohan M. Trivedi

GPCycleGAN is based on the well-known CycleGAN approach - with the addition of a gaze classifier and a gaze consistency loss for additional supervision.

Gaze Estimation Image-to-Image Translation

Forced Spatial Attention for Driver Foot Activity Classification

1 code implementation27 Jul 2019 Akshay Rangesh, Mohan M. Trivedi

This paper provides a simple solution for reliably solving image classification tasks tied to spatial locations of salient objects in the scene.

Classification General Classification +1

3D BAT: A Semi-Automatic, Web-based 3D Annotation Toolbox for Full-Surround, Multi-Modal Data Streams

2 code implementations1 May 2019 Walter Zimmer, Akshay Rangesh, Mohan Trivedi

In this paper, we focus on obtaining 2D and 3D labels, as well as track IDs for objects on the road with the help of a novel 3D Bounding Box Annotation Toolbox (3D BAT).

Motion Planning motion prediction

Ground Plane Polling for 6DoF Pose Estimation of Objects on the Road

1 code implementation16 Nov 2018 Akshay Rangesh, Mohan M. Trivedi

Once identified, the "best fit" plane provides enough constraints to successfully construct the desired 3D detection box, without directly predicting the 6DoF pose of the object.

Object Pose Estimation

No Blind Spots: Full-Surround Multi-Object Tracking for Autonomous Vehicles using Cameras & LiDARs

3 code implementations23 Feb 2018 Akshay Rangesh, Mohan M. Trivedi

In this paper, we present a modular framework for tracking multiple objects (vehicles), capable of accepting object proposals from different sensor modalities (vision and range) and a variable number of sensors, to produce continuous object tracks.

Autonomous Vehicles Multi-Object Tracking +2

Driver Hand Localization and Grasp Analysis: A Vision-based Real-time Approach

no code implementations22 Feb 2018 Siddharth, Akshay Rangesh, Eshed Ohn-Bar, Mohan M. Trivedi

This work addresses the task of accurately localizing driver hands and classifying the grasp state of each hand.

Hand Detection

Driver Gaze Zone Estimation using Convolutional Neural Networks: A General Framework and Ablative Analysis

no code implementations8 Feb 2018 Sourabh Vora, Akshay Rangesh, Mohan M. Trivedi

Finally, we evaluate our best performing model on the publicly available Columbia Gaze Dataset comprising of images from 56 subjects with varying head pose and gaze directions.

Autonomous Vehicles

When Vehicles See Pedestrians with Phones:A Multi-Cue Framework for Recognizing Phone-based Activities of Pedestrians

no code implementations24 Jan 2018 Akshay Rangesh, Mohan M. Trivedi

The intelligent vehicle community has devoted considerable efforts to model driver behavior, and in particular to detect and overcome driver distraction in an effort to reduce accidents caused by driver negligence.

Activity Recognition Decision Making +1

How would surround vehicles move? A Unified Framework for Maneuver Classification and Motion Prediction

no code implementations19 Jan 2018 Nachiket Deo, Akshay Rangesh, Mohan M. Trivedi

In this paper we propose a unified framework for surround vehicle maneuver classification and motion prediction that exploits multiple cues, namely, the estimated motion of vehicles, an understanding of typical motion patterns of freeway traffic and inter-vehicle interaction.

Autonomous Vehicles General Classification +2

A Multimodal, Full-Surround Vehicular Testbed for Naturalistic Studies and Benchmarking: Design, Calibration and Deployment

no code implementations21 Sep 2017 Akshay Rangesh, Kevan Yuen, Ravi Kumar Satzoda, Rakesh Nattoji Rajaram, Pujitha Gunaratne, Mohan M. Trivedi

Recent progress in autonomous and semi-autonomous driving has been made possible in part through an assortment of sensors that provide the intelligent agent with an enhanced perception of its surroundings.

Autonomous Driving Benchmarking

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