Search Results for author: Lex Fridman

Found 17 papers, 3 papers with code

CLERA: A Unified Model for Joint Cognitive Load and Eye Region Analysis in the Wild

no code implementations26 Jun 2023 Li Ding, Jack Terwilliger, Aishni Parab, Meng Wang, Lex Fridman, Bruce Mehler, Bryan Reimer

Non-intrusive, real-time analysis of the dynamics of the eye region allows us to monitor humans' visual attention allocation and estimate their mental state during the performance of real-world tasks, which can potentially benefit a wide range of human-computer interaction (HCI) applications.

Blink estimation Keypoint Detection

Object as Distribution

no code implementations25 Jul 2019 Li Ding, Lex Fridman

We provide qualitative evaluation of this representation for the object detection task and quantitative evaluation of its use in a baseline algorithm for the instance segmentation task.

Autonomous Driving Instance Segmentation +6

Value of Temporal Dynamics Information in Driving Scene Segmentation

no code implementations21 Mar 2019 Li Ding, Jack Terwilliger, Rini Sherony, Bryan Reimer, Lex Fridman

What is not known is how much extra information the temporal dynamics of the visual scene carries that is complimentary to the information available in the individual frames of the video.

Scene Segmentation Segmentation +2

Human-Centered Autonomous Vehicle Systems: Principles of Effective Shared Autonomy

no code implementations3 Oct 2018 Lex Fridman

Building effective, enjoyable, and safe autonomous vehicles is a lot harder than has historically been considered.

Autonomous Vehicles

A Machine Learning Approach for Power Allocation in HetNets Considering QoS

1 code implementation18 Mar 2018 Roohollah Amiri, Hani Mehrpouyan, Lex Fridman, Ranjan K. Mallik, Arumugam Nallanathan, David Matolak

However, as the density of the network increases so does the complexity of such resource allocation methods.

Information Theory Information Theory

DeepTraffic: Crowdsourced Hyperparameter Tuning of Deep Reinforcement Learning Systems for Multi-Agent Dense Traffic Navigation

6 code implementations9 Jan 2018 Lex Fridman, Jack Terwilliger, Benedikt Jenik

We present a traffic simulation named DeepTraffic where the planning systems for a subset of the vehicles are handled by a neural network as part of a model-free, off-policy reinforcement learning process.

Autonomous Driving Autonomous Navigation +3

Semi-Automated Annotation of Discrete States in Large Video Datasets

no code implementations3 Dec 2016 Lex Fridman, Bryan Reimer

We propose a framework for semi-automated annotation of video frames where the video is of an object that at any point in time can be labeled as being in one of a finite number of discrete states.

What Can Be Predicted from Six Seconds of Driver Glances?

no code implementations26 Nov 2016 Lex Fridman, Heishiro Toyoda, Sean Seaman, Bobbie Seppelt, Linda Angell, Joonbum Lee, Bruce Mehler, Bryan Reimer

We consider a large dataset of real-world, on-road driving from a 100-car naturalistic study to explore the predictive power of driver glances and, specifically, to answer the following question: what can be predicted about the state of the driver and the state of the driving environment from a 6-second sequence of macro-glances?

Binary Classification Gaze Estimation

Detecting Road Surface Wetness from Audio: A Deep Learning Approach

no code implementations22 Nov 2015 Irman Abdić, Lex Fridman, Erik Marchi, Daniel E. Brown, William Angell, Bryan Reimer, Björn Schuller

We introduce a recurrent neural network architecture for automated road surface wetness detection from audio of tire-surface interaction.

General Classification

Learning Human Identity from Motion Patterns

no code implementations12 Nov 2015 Natalia Neverova, Christian Wolf, Griffin Lacey, Lex Fridman, Deepak Chandra, Brandon Barbello, Graham Taylor

We present a large-scale study exploring the capability of temporal deep neural networks to interpret natural human kinematics and introduce the first method for active biometric authentication with mobile inertial sensors.

Owl and Lizard: Patterns of Head Pose and Eye Pose in Driver Gaze Classification

no code implementations17 Aug 2015 Lex Fridman, Joonbum Lee, Bryan Reimer, Trent Victor

The main insight of the paper is conveyed through the analogy of an "owl" and "lizard" which describes the degree to which the eyes and the head move when shifting gaze.

Classification General Classification

Driver Gaze Region Estimation Without Using Eye Movement

no code implementations16 Jul 2015 Lex Fridman, Philipp Langhans, Joonbum Lee, Bryan Reimer

In theory, vision-based tracking of the eye can provide a good estimate of gaze location.

Active Authentication on Mobile Devices via Stylometry, Application Usage, Web Browsing, and GPS Location

no code implementations29 Mar 2015 Lex Fridman, Steven Weber, Rachel Greenstadt, Moshe Kam

Active authentication is the problem of continuously verifying the identity of a person based on behavioral aspects of their interaction with a computing device.

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