Search Results for author: Henry Medeiros

Found 13 papers, 4 papers with code

Deep Convolutional Correlation Iterative Particle Filter for Visual Tracking

no code implementations7 Jul 2021 Reza Jalil Mozhdehi, Henry Medeiros

This work proposes a novel framework for visual tracking based on the integration of an iterative particle filter, a deep convolutional neural network, and a correlation filter.

Frame Visual Tracking

Tracking Passengers and Baggage Items using Multi-camera Systems at Security Checkpoints

no code implementations15 Jul 2020 Abubakar Siddique, Henry Medeiros

The multiple hypothesis tracking algorithm then keeps track of the temporal identifiers of the targets based on the cluster centroids.

Data Augmentation Object Detection

Unsupervised Spatio-temporal Latent Feature Clustering for Multiple-object Tracking and Segmentation

1 code implementation14 Jul 2020 Abubakar Siddique, Reza Jalil Mozhdehi, Henry Medeiros

The feature vectors and the constraints graphs are then provided to the kmeans clustering algorithm to separate the corresponding data points in the latent space.

Instance Segmentation Multiple Object Tracking +1

Deep Convolutional Likelihood Particle Filter for Visual Tracking

no code implementations11 Jun 2020 Reza Jalil Mozhdehi, Henry Medeiros

We propose a novel particle filter for convolutional-correlation visual trackers.

Visual Tracking

Probabilistic Semantic Segmentation Refinement by Monte Carlo Region Growing

no code implementations12 May 2020 Philipe A. Dias, Henry Medeiros

Experiments using multiple modern semantic segmentation networks and benchmark datasets demonstrate the effectiveness of our approach for the refinement of segmentation predictions at different levels of coarseness, as well as the suitability of the variance estimates obtained in the Monte Carlo iterations as uncertainty measures that are highly correlated with segmentation accuracy.

Semantic Segmentation

Gaze Estimation for Assisted Living Environments

no code implementations19 Sep 2019 Philipe A. Dias, Damiano Malafronte, Henry Medeiros, Francesca Odone

Effective assisted living environments must be able to perform inferences on how their occupants interact with one another as well as with surrounding objects.

Gaze Estimation Pose Estimation +1

Calibration of Asynchronous Camera Networks: CALICO

1 code implementation15 Mar 2019 Amy Tabb, Henry Medeiros, Mitchell J. Feldmann, Thiago T. Santos

Camera network and multi-camera calibration for external parameters is a necessary step for a variety of contexts in computer vision and robotics, ranging from three-dimensional reconstruction to human activity tracking.

Camera Calibration Object Reconstruction

FreeLabel: A Publicly Available Annotation Tool based on Freehand Traces

2 code implementations18 Feb 2019 Philipe A. Dias, Zhou Shen, Amy Tabb, Henry Medeiros

Large-scale annotation of image segmentation datasets is often prohibitively expensive, as it usually requires a huge number of worker hours to obtain high-quality results.

Semantic Segmentation

Apple Flower Detection using Deep Convolutional Networks

no code implementations17 Sep 2018 Philipe A. Dias, Amy Tabb, Henry Medeiros

To optimize fruit production, a portion of the flowers and fruitlets of apple trees must be removed early in the growing season.

Semantic Segmentation Refinement by Monte Carlo Region Growing of High Confidence Detections

no code implementations21 Feb 2018 Philipe A. Dias, Henry Medeiros

The re-labeling approach employs a region growing mechanism that aggregates these pixels to neighboring areas with high confidence scores and similar appearance.

Semantic Segmentation

A robotic vision system to measure tree traits

no code implementations17 Jul 2017 Amy Tabb, Henry Medeiros

The autonomous measurement of tree traits, such as branching structure, branch diameters, branch lengths, and branch angles, is required for tasks such as robotic pruning of trees as well as structural phenotyping.

Robotics

Fast and robust curve skeletonization for real-world elongated objects

2 code implementations24 Feb 2017 Amy Tabb, Henry Medeiros

We consider the problem of extracting curve skeletons of three-dimensional, elongated objects given a noisy surface, which has applications in agricultural contexts such as extracting the branching structure of plants.

Decision Making

Automatic segmentation of trees in dynamic outdoor environments

no code implementations24 Feb 2017 Amy Tabb, Henry Medeiros

Segmentation in dynamic outdoor environments can be difficult when the illumination levels and other aspects of the scene cannot be controlled.

Superpixels

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