Search Results for author: R. James Cotton

Found 13 papers, 4 papers with code

Differentiable Biomechanics Unlocks Opportunities for Markerless Motion Capture

no code implementations27 Feb 2024 R. James Cotton

Recent developments have created differentiable physics simulators designed for machine learning pipelines that can be accelerated on a GPU.

Markerless Motion Capture

Advancing Monocular Video-Based Gait Analysis Using Motion Imitation with Physics-Based Simulation

no code implementations20 Feb 2024 Nikolaos Smyrnakis, Tasos Karakostas, R. James Cotton

Gait analysis from videos obtained from a smartphone would open up many clinical opportunities for detecting and quantifying gait impairments.

reinforcement-learning

Generalization properties of contrastive world models

no code implementations29 Dec 2023 Kandan Ramakrishnan, R. James Cotton, Xaq Pitkow, Andreas S. Tolias

We systematically test the model under a number of different OOD generalization scenarios such as extrapolation to new object attributes, introducing new conjunctions or new attributes.

Object

Dynamic Gaussian Splatting from Markerless Motion Capture can Reconstruct Infants Movements

no code implementations30 Oct 2023 R. James Cotton, Colleen Peyton

This work paves the way for advanced movement analysis tools that can be applied to diverse clinical populations, with a particular emphasis on early detection in infants.

Markerless Motion Capture Semantic Segmentation

Markerless Motion Capture and Biomechanical Analysis Pipeline

no code implementations19 Mar 2023 R. James Cotton, Allison DeLillo, Anthony Cimorelli, Kunal Shah, J. D. Peiffer, Shawana Anarwala, Kayan Abdou, Tasos Karakostas

Markerless motion capture using computer vision and human pose estimation (HPE) has the potential to expand access to precise movement analysis.

Markerless Motion Capture Pose Estimation

Improved Trajectory Reconstruction for Markerless Pose Estimation

no code implementations4 Mar 2023 R. James Cotton, Anthony Cimorelli, Kunal Shah, Shawana Anarwala, Scott Uhlrich, Tasos Karakostas

Markerless pose estimation allows reconstructing human movement from multiple synchronized and calibrated views, and has the potential to make movement analysis easy and quick, including gait analysis.

Pose Estimation

Multi-hypothesis 3D human pose estimation metrics favor miscalibrated distributions

1 code implementation20 Oct 2022 Paweł A. Pierzchlewicz, R. James Cotton, Mohammad Bashiri, Fabian H. Sinz

We evaluate cGNF on the Human~3. 6M dataset and show that cGNF provides a well-calibrated distribution estimate while being close to state-of-the-art in terms of overall minMPJPE.

Density Estimation Multi-Hypotheses 3D Human Pose Estimation

Transforming Gait: Video-Based Spatiotemporal Gait Analysis

no code implementations17 Mar 2022 R. James Cotton, Emoonah McClerklin, Anthony Cimorelli, Ankit Patel, Tasos Karakostas

Human pose estimation from monocular video is a rapidly advancing field that offers great promise to human movement science and rehabilitation.

Pose Estimation

PosePipe: Open-Source Human Pose Estimation Pipeline for Clinical Research

1 code implementation16 Mar 2022 R. James Cotton

We also highlight limitations of these algorithms when applied to clinical populations in a rehabilitation setting.

Data Visualization Keypoint Detection +1

Spatiotemporal Characterization of Gait from Monocular Videos with Transformers

no code implementations29 Sep 2021 R. James Cotton, Emoonah McClerklin, Anthony Cimorelli, Ankit Patel

Using more than 9000 monocular video from an instrumented gait analysis lab, we evaluated the performance of existing algorithms for measuring kinematics.

Pose Estimation

Factorized Neural Processes for Neural Processes: $K$-Shot Prediction of Neural Responses

1 code implementation22 Oct 2020 R. James Cotton, Fabian H. Sinz, Andreas S. Tolias

We overcome this limitation by formulating the problem as $K$-shot prediction to directly infer a neuron's tuning function from a small set of stimulus-response pairs using a Neural Process.

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