Search Results for author: Babak Taati

Found 15 papers, 6 papers with code

MotionAGFormer: Enhancing 3D Human Pose Estimation with a Transformer-GCNFormer Network

1 code implementation25 Oct 2023 Soroush Mehraban, Vida Adeli, Babak Taati

Our proposed GCNFormer module exploits the local relationship between adjacent joints, outputting a new representation that is complementary to the transformer output.

Monocular 3D Human Pose Estimation

Pose2Gait: Extracting Gait Features from Monocular Video of Individuals with Dementia

1 code implementation22 Aug 2023 Caroline Malin-Mayor, Vida Adeli, Andrea Sabo, Sergey Noritsyn, Carolina Gorodetsky, Alfonso Fasano, Andrea Iaboni, Babak Taati

In this work we train a deep neural network to map from a two dimensional pose sequence, extracted from a video of an individual walking down a hallway toward a wall-mounted camera, to a set of three-dimensional spatiotemporal gait features averaged over the walking sequence.

Pose Tracking

Large Language Models are Fixated by Red Herrings: Exploring Creative Problem Solving and Einstellung Effect using the Only Connect Wall Dataset

1 code implementation NeurIPS 2023 Saeid Naeini, Raeid Saqur, Mozhgan Saeidi, John Giorgi, Babak Taati

In this paper we present the novel Only Connect Wall (OCW) dataset and report results from our evaluation of selected pre-trained language models and LLMs on creative problem solving tasks like grouping clue words by heterogeneous connections, and identifying correct open knowledge domain connections in respective groups.

 Ranked #1 on Only Connect Walls Dataset Task 1 (Grouping) on OCW (# Correct Groups metric, using extra training data)

Only Connect Walls Dataset Task 1 (Grouping) Only Connect Walls Dataset Task 2 (Connections)

Automated Temporal Segmentation of Orofacial Assessment Videos

no code implementations22 Aug 2022 Saeid Alavi Naeini, Leif Simmatis, Deniz Jafari, Diego L. Guarin, Yana Yunusova, Babak Taati

Computer vision techniques can help automate or partially automate clinical examination of orofacial impairments to provide accurate and objective assessments.

Sentence

Estimating Parkinsonism Severity in Natural Gait Videos of Older Adults with Dementia

2 code implementations7 May 2021 Andrea Sabo, Sina Mehdizadeh, Andrea Iaboni, Babak Taati

This work leverages novel spatial-temporal graph convolutional network (ST-GCN) architectures and training procedures to predict clinical scores of parkinsonism in gait from video of individuals with dementia.

2D Human Pose Estimation Pose Estimation

Unobtrusive Pain Monitoring in Older Adults with Dementia using Pairwise and Contrastive Training

1 code implementation8 Jan 2021 Siavash Rezaei, Abhishek Moturu, Shun Zhao, Kenneth M. Prkachin, Thomas Hadjistavropoulos, Babak Taati

However, existing computer vision techniques for pain detection are not validated on faces of older adults or people with dementia, and this population is not represented in existing facial expression datasets of pain.

 Ranked #1 on Pain Intensity Regression on UNBC-McMaster ShoulderPain dataset (Pearson Correlation Coefficient metric)

Pain Intensity Regression

Estimation of Orofacial Kinematics in Parkinson's Disease: Comparison of 2D and 3D Markerless Systems for Motion Tracking

no code implementations18 Mar 2020 Diego L. Guarin, Aidan Dempster, Andrea Bandini, Yana Yunusova, Babak Taati

We are developing an automated system for assessment of orofacial function in PD that can be used in-home or in-clinic and can provide useful and objective clinical information that informs disease management.

Management

Toward an Automatic System for Computer-Aided Assessment in Facial Palsy

no code implementations25 Oct 2019 Diego L. Guarin, Yana Yunusova, Babak Taati, Joseph R Dusseldorp, Suresh Mohan, Joana Tavares, Martinus M. van Veen, Emily Fortier, Tessa A. Hadlock, Nate Jowett

Objective: To develop an ML algorithm for accurate facial landmarks localization in photographs of facial palsy patients, and use it as part of an automated computer-aided diagnosis system.

Face Alignment

A Hybrid Instance-based Transfer Learning Method

no code implementations3 Dec 2018 Azin Asgarian, Parinaz Sobhani, Ji Chao Zhang, Madalin Mihailescu, Ariel Sibilia, Ahmed Bilal Ashraf, Babak Taati

Transfer learning can help overcome this issue by transferring the knowledge from readily available datasets (source) to a new dataset (target).

Transfer Learning

Learning to Unlearn: Building Immunity to Dataset Bias in Medical Imaging Studies

no code implementations3 Dec 2018 Ahmed Ashraf, Shehroz Khan, Nikhil Bhagwat, Mallar Chakravarty, Babak Taati

As a result, machine learning models do not generalize even when trained on imaging datasets that were captured to study the same variable of interest.

Transfer Learning

Subspace Selection to Suppress Confounding Source Domain Information in AAM Transfer Learning

no code implementations28 Aug 2017 Azin Asgarian, Ahmed Bilal Ashraf, David Fleet, Babak Taati

We propose a subspace transfer learning method, in which we select a subspace from the source that best describes the target space.

Transfer Learning

Vision-Based Assessment of Parkinsonism and Levodopa-Induced Dyskinesia with Deep Learning Pose Estimation

1 code implementation25 Jul 2017 Michael H. Li, Tiago A. Mestre, Susan H. Fox, Babak Taati

Conclusion: This paper presents the first application of deep learning for vision-based assessment of parkinsonism and LID and demonstrates promising performance for the future translation of deep learning to PD clinical practices.

Pose Estimation

Video Analysis of "YouTube Funnies" to Aid the Study of Human Gait and Falls - Preliminary Results and Proof of Concept

no code implementations26 Oct 2016 Babak Taati, Pranay Lohia, Avril Mansfield, Ahmed Ashraf

The analysis explores: computing spatiotemporal parameters of gait in a video captured from an arbitrary viewpoint; the relationship between parameters of gait from the last few steps before the obstacle and falling vs. not falling; and the predictive capacity of a multivariate model in predicting a fall in the presence of an unexpected obstacle.

Detecting Unseen Falls from Wearable Devices using Channel-wise Ensemble of Autoencoders

no code implementations12 Oct 2016 Shehroz S. Khan, Babak Taati

We propose two methods for automatic tightening of reconstruction error from only the normal activities for better identification of unseen falls.

Activity Recognition One-Class Classification

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