Searched for: author%3A%22Marroquim%2C+Ricardo%22
(1 - 12 of 12)
document
Ambrosini, P. (author), Azizian Amiri, S. (author), Zeestraten, Eliane (author), van Ginhoven, Tessa (author), Marroquim, Ricardo (author), van Walsum, T. (author)
Purpose: For tumor resection, surgeons need to localize the tumor. For this purpose, a magnetic seed can be inserted into the tumor by a radiologist and, during surgery, a magnetic detection probe informs the distance to the seed for localization. In this case, the surgeon still needs to mentally reconstruct the position of the tumor from the...
journal article 2024
document
Väljataga, Terje (author), Pata, Kai (author), Annus, Andrea (author), Calisto, Michelle Andrade (author), Cambronero, Agueda Gomez (author), Eisemann, E. (author), Marroquim, Ricardo (author), Szécsi, László (author), Zaidi, A. (author)
Disruptive technology has become an integral part of our lives, and it has brought about a significant transformation in the way we interact, communicate, and share information, also in the field of education. Innovation in technology needs to be based on ethics and values of the intended result. As the use of disruptive technology continues...
conference paper 2023
document
van der Toorn, J. (author), Wiersma, R.T. (author), Vandivere, Abbie (author), Marroquim, Ricardo (author), Eisemann, E. (author)
Multimodal imaging is used by conservators and scientists to study the composition of paintings. To aid the combined analysis of these digitisations, such images must first be aligned. Rather than proposing a new domain-specific descriptor, we explore and evaluate how existing feature descriptors from related fields can improve the performance...
conference paper 2022
document
Coudert-Osmont, Yoann (author), Eisemann, E. (author), Marroquim, Ricardo (author)
Perspective cues play an important role in painting analysis as it may unveil important characteristics about the painter's techniques and creation process. Nevertheless, extracting perspective lines and their corresponding vanishing points is usually a laborious manual task. Moreover, small variations in the lines may lead to large variations...
conference paper 2022
document
Pieras Sagardoy, M. (author), Marroquim, Ricardo (author), Broekens, D.J. (author), Eisemann, E. (author), Vilanova, A. (author)
During training sessions, sailors rely on feedback provided by the coaches to reinforce their skills and improve their performance. Nowadays, the incorporation of sensors on the boats enables coaches to potentially provide more informed feedback to the sailors. A common exercise during practice sessions, consists of two boats of the same...
journal article 2022
document
Clausen, O. (author), Chen, Y. (author), Fuhrmann, A. (author), Marroquim, Ricardo (author)
Simulating light–matter interaction is a fundamental problem in computer graphics. A particular challenge is the simulation of light interaction with rough surfaces due to diffraction and multiple scattering phenomena. To properly model these phenomena, wave-optics have to be considered. Nevertheless, the most accurate BRDF models, including...
journal article 2022
document
MačEk, Nejc (author), Usta, B. (author), Eisemann, E. (author), Marroquim, Ricardo (author)
Video-streaming services usually feature post-processing effects to replace the background. However, these often yield inconsistent lighting. Machine-learning-based relighting methods can address this problem, but, at real-time rates, are restricted to a low resolution and can result in an unrealistic skin appearance. Physically-based...
journal article 2022
document
Mazala, Diego (author), Esperança, Claudio (author), Marroquim, Ricardo (author)
Designing realistic tridimensional facial models is a challenging task, not only due to the effort and artistic abilities required but also because human visual perception is very tuned to the processing of facial features. For this reason, rather than creating face models from scratch, artists usually start from a scanned model of a real...
journal article 2022
document
Reichert, Gijs M. W. (author), Pieras Sagardoy, M. (author), Marroquim, Ricardo (author), Vilanova Bartroli, A. (author)
One common way to aid coaching and seek to improve athletes’ performance is by recording training sessions for posterior analysis. In the case of sailing, coaches record videos from another boat, but usually rely on handheld devices, which may lead to issues with the footage and missing important moments. On the other hand, by autonomously...
journal article 2021
document
Wooning, Joost (author), Benmahdjoub, Mohamed (author), van Walsum, T. (author), Marroquim, Ricardo (author)
Craniotomy is a procedure where neurosurgeons open the patient’s skull to gain direct access to the brain. The craniotomy’s position defines the access path from the skull surface to the tumour and, consequently, the healthy brain tissue to be removed to reach the tumour. This is a complex procedure where a neurosurgeon is required to...
conference paper 2021
document
Mu, D. (author), Pieras Sagardoy, M. (author), Broekens, Douwe (author), Marroquim, Ricardo (author)
While sailing, sailors rely on their eyes to inspect the sail shape and adjust the configurations to achieve an appropriate shape for a certain the weather condition. Mastering this so-called trimming process requires years of experience since the visual inspection of the sail shape suffers from inaccuracies and many times are difficult to...
conference paper 2021
document
Maciel, Luiz (author), Marroquim, Ricardo (author), Vieira, Marcelo (author), Ribeiro, Kevyn (author), Alho, Alexandre (author)
We present a method to recover the 3D flying shape of a sail using passive markers. In the navigation and naval architecture domain, retrieving the sail shape may be of immense value to confirm or contest simulation results, and to aid the design of new optimal sails. Our acquisition setup is very simple and low-cost, as it is only necessary...
journal article 2021
Searched for: author%3A%22Marroquim%2C+Ricardo%22
(1 - 12 of 12)