1 code implementation • CVPR 2020 • G. Dias Pais, Srikumar Ramalingam, Venu Madhav Govindu, Jacinto C. Nascimento, Rama Chellappa, Pedro Miraldo
Given a set of 3D point correspondences, we build a deep neural network to address the following two challenges: (i) classification of the point correspondences into inliers/outliers, and (ii) regression of the motion parameters that align the scans into a common reference frame.
1 code implementation • 21 May 2020 • Renato Hermoza, Gabriel Maicas, Jacinto C. Nascimento, Gustavo Carneiro
The deployment of automated systems to diagnose diseases from medical images is challenged by the requirement to localise the diagnosed diseases to justify or explain the classification decision.
1 code implementation • 26 Feb 2023 • Chihcheng Hsieh, Isabel Blanco Nobre, Sandra Costa Sousa, Chun Ouyang, Margot Brereton, Jacinto C. Nascimento, Joaquim Jorge, Catarina Moreira
In this work, we propose a novel architecture consisting of two fusion methods that enable the model to simultaneously process patients' clinical data (structured data) and chest X-rays (image data).
1 code implementation • 10 Nov 2023 • José Celestino, Manuel Marques, Jacinto C. Nascimento, João Paulo Costeira
Head orientation is a challenging Computer Vision problem that has been extensively researched having a wide variety of applications.
Ranked #4 on Head Pose Estimation on BIWI
1 code implementation • 22 Feb 2021 • Renato Hermoza, Gabriel Maicas, Jacinto C. Nascimento, Gustavo Carneiro
In this paper, we introduce a new post-hoc method for OS time prediction that does not require segmentation map annotation for training.
1 code implementation • 26 May 2022 • Renato Hermoza, Gabriel Maicas, Jacinto C. Nascimento, Gustavo Carneiro
In this work, we propose a new training method that predicts survival time using all censored and uncensored data.
no code implementations • 28 May 2018 • Gabriel Maicas, Andrew P. Bradley, Jacinto C. Nascimento, Ian Reid, Gustavo Carneiro
This process bears no direct resemblance with radiologist training, which is based on solving a series of tasks of increasing difficulty, where each task involves the use of significantly smaller datasets than those used in machine learning.
no code implementations • 15 Jul 2016 • Andre Mateus, David Ribeiro, Pedro Miraldo, Jacinto C. Nascimento
This paper addresses the problem of Human-Aware Navigation (HAN), using multi camera sensors to implement a vision-based person tracking system.
no code implementations • 15 Jul 2016 • David Ribeiro, Andre Mateus, Pedro Miraldo, Jacinto C. Nascimento
A real-time Deep Learning based method for Pedestrian Detection (PD) is applied to the Human-Aware robot navigation problem.
no code implementations • 25 Sep 2018 • Gabriel Maicas, Andrew P. Bradley, Jacinto C. Nascimento, Ian Reid, Gustavo Carneiro
Conversely, traditional approaches follow a pre-hoc approach that initially localises suspicious areas that are subsequently classified to establish the breast malignancy -- this approach is trained using strongly annotated data (i. e., it needs a delineation and classification of all lesions in an image).
no code implementations • CVPR 2013 • Jacinto C. Nascimento, Gustavo Carneiro
In this paper, we propose the use of sparse manifolds to reduce the dimensionality of the rigid detection search space of current stateof-the-art top-down segmentation methodologies.
no code implementations • CVPR 2014 • Jacinto C. Nascimento, Gustavo Carneiro
In this paper, we propose a new methodology for segmenting non-rigid visual objects, where the search procedure is onducted directly on a sparse low-dimensional manifold, guided by the classification results computed from a deep belief network.
no code implementations • 2 Mar 2019 • G. Dias Pais, Tiago J. Dias, Jacinto C. Nascimento, Pedro Miraldo
Pedestrian detection is one of the most explored topics in computer vision and robotics.
no code implementations • 17 Jul 2019 • Gabriel Maicas, Cuong Nguyen, Farbod Motlagh, Jacinto C. Nascimento, Gustavo Carneiro
Meta-training has been empirically demonstrated to be the most effective pre-training method for few-shot learning of medical image classifiers (i. e., classifiers modeled with small training sets).
no code implementations • 29 Mar 2024 • José Celestino, Manuel Marques, Jacinto C. Nascimento
Head pose estimation has become a crucial area of research in computer vision given its usefulness in a wide range of applications, including robotics, surveillance, or driver attention monitoring.