Search Results for author: Mohan M. Trivedi

Found 30 papers, 9 papers with code

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.

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

Trajectory Prediction for Autonomous Driving based on Multi-Head Attention with Joint Agent-Map Representation

no code implementations6 May 2020 Kaouther Messaoud, Nachiket Deo, Mohan M. Trivedi, Fawzi Nashashibi

The future trajectories of agents can be inferred using two important cues: the locations and past motion of agents, and the static scene structure.

Autonomous Driving Trajectory Prediction

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

Trajectory Forecasts in Unknown Environments Conditioned on Grid-Based Plans

1 code implementation3 Jan 2020 Nachiket Deo, Mohan M. Trivedi

We address the problem of forecasting pedestrian and vehicle trajectories in unknown environments, conditioned on their past motion and scene structure.

Trajectory Forecasting

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

Scene Induced Multi-Modal Trajectory Forecasting via Planning

no code implementations23 May 2019 Nachiket Deo, Mohan M. Trivedi

We address multi-modal trajectory forecasting of agents in unknown scenes by formulating it as a planning problem.

reinforcement-learning Reinforcement Learning (RL) +1

Understanding Pedestrian-Vehicle Interactions with Vehicle Mounted Vision: An LSTM Model and Empirical Analysis

no code implementations14 May 2019 Daniela A. Ridel, Nachiket Deo, Denis Wolf, Mohan M. Trivedi

In this paper, we present a data-driven approach to implicitly model pedestrians' interactions with vehicles, to better predict pedestrian behavior.

Self-Driving Cars

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

Looking at the Driver/Rider in Autonomous Vehicles to Predict Take-Over Readiness

no code implementations14 Nov 2018 Nachiket Deo, Mohan M. Trivedi

Continuous estimation the driver's take-over readiness is critical for safe and timely transfer of control during the failure modes of autonomous vehicles.

Autonomous Vehicles

Convolutional Social Pooling for Vehicle Trajectory Prediction

3 code implementations15 May 2018 Nachiket Deo, Mohan M. Trivedi

Forecasting the motion of surrounding vehicles is a critical ability for an autonomous vehicle deployed in complex traffic.

Trajectory Prediction

Multi-Modal Trajectory Prediction of Surrounding Vehicles with Maneuver based LSTMs

no code implementations15 May 2018 Nachiket Deo, Mohan M. Trivedi

To safely and efficiently navigate through complex traffic scenarios, autonomous vehicles need to have the ability to predict the future motion of surrounding vehicles.

Autonomous Vehicles motion prediction +2

Looking at Hands in Autonomous Vehicles: A ConvNet Approach using Part Affinity Fields

no code implementations3 Apr 2018 Kevan Yuen, Mohan M. Trivedi

In the context of autonomous driving, where humans may need to take over in the event where the computer may issue a takeover request, a key step towards driving safety is the monitoring of the hands to ensure the driver is ready for such a request.

Autonomous Driving

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

An Occluded Stacked Hourglass Approach to Facial Landmark Localization and Occlusion Estimation

no code implementations5 Feb 2018 Kevan Yuen, Mohan M. Trivedi

A key step to driver safety is to observe the driver's activities with the face being a key step in this process to extracting information such as head pose, blink rate, yawns, talking to passenger which can then help derive higher level information such as distraction, drowsiness, intent, and where they are looking.

Face Alignment Face Detection +1

Dynamics of Driver's Gaze: Explorations in Behavior Modeling & Maneuver Prediction

no code implementations31 Jan 2018 Sujitha Martin, Sourabh Vora, Kevan Yuen, Mohan M. Trivedi

The study and modeling of driver's gaze dynamics is important because, if and how the driver is monitoring the driving environment is vital for driver assistance in manual mode, for take-over requests in highly automated mode and for semantic perception of the surround in fully autonomous mode.

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

Learning to Detect Vehicles by Clustering Appearance Patterns

no code implementations12 Mar 2015 Eshed Ohn-Bar, Mohan M. Trivedi

This paper studies efficient means for dealing with intra-category diversity in object detection.

Clustering Object +2

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