no code implementations • 30 Apr 2022 • David Ouyang, John Theurer, Nathan R. Stein, J. Weston Hughes, Pierre Elias, Bryan He, Neal Yuan, Grant Duffy, Roopinder K. Sandhu, Joseph Ebinger, Patrick Botting, Melvin Jujjavarapu, Brian Claggett, James E. Tooley, Tim Poterucha, Jonathan H. Chen, Michael Nurok, Marco Perez, Adler Perotte, James Y. Zou, Nancy R. Cook, Sumeet S. Chugh, Susan Cheng, Christine M. Albert
The algorithm discriminates mortality with an AUC of 0. 83 (95% CI 0. 79-0. 87) surpassing the discrimination of the RCRI score with an AUC of 0. 67 (CI 0. 61-0. 72) in the held out test cohort.
no code implementations • 30 Jun 2014 • Erik Cuevas, Daniel Zaldivar, Marco Perez, Humberto Sossa, Valentin Osuna
Therefore, BM motion estimation can be approached as an optimization problem, where the goal is to find the best matching block within a search space.
no code implementations • 26 Jun 2014 • Erik Cuevas, Margarita Diaz, Miguel Manzanares, Daniel Zaldivar, Marco Perez
This paper presents an algorithm for the automatic detection of WBC embedded into complicated and cluttered smear images that considers the complete process as a multi-ellipse detection problem.
1 code implementation • 12 Jun 2014 • Erik Cuevas, Miguel Cienfuegos, Daniel Zaldivar, Marco Perez
In the proposed algorithm, individuals emulate a group of spiders which interact to each other based on the biological laws of the cooperative colony.
no code implementations • 28 May 2014 • Erik Cuevas, Daniel Zaldivar, Marco Perez
In this approach, one 1D histogram of a given image is approximated through a Gaussian mixture model whose parameters are calculated using the LA algorithm.
no code implementations • 28 May 2014 • Erik Cuevas, Daniel Zaldivar, Marco Perez, Marte Ramirez
Experimental results on several synthetic and natural images with varying range of complexity validate the efficiency of the proposed technique considering accuracy, speed, and robustness.
no code implementations • 28 May 2014 • Erik Cuevas, Noe Ortega, Daniel Zaldivar, Marco Perez
Guided by the values of this objective function, the set of encoded candidate circles are evolved using the HSA so that they can fit to the actual circles on the edge map of the image (optimal harmony).
no code implementations • 28 May 2014 • Erik Cuevas, Felipe Sencion, Daniel Zaldivar, Marco Perez, Humberto Sossa
This paper explores the use of the Artificial Bee Colony (ABC) algorithm to compute threshold selection for image segmentation.
no code implementations • 21 May 2014 • Erik Cuevas, Fernando Wario, Daniel Zaldivar, Marco Perez
Guided by the values of such reinforcement signal, the probability set of the encoded candidate circles is modified through the LA algorithm so that they can fit to the actual circles on the edge map.
no code implementations • 21 May 2014 • Erik Cuevas, Daniel Zaldivar, Marco Perez, Edgar Sanchez, Marte Ramirez
Reliable corner detection is an important task in determining the shape of different regions within an image.
no code implementations • 21 May 2014 • Erik Cuevas, Fernando Wario, Valentin Osuna, Daniel Zaldivar, Marco Perez
The detection process is considered as a multi-modal optimization problem, allowing the detection of multiple circular shapes through only one optimization procedure.
no code implementations • 20 May 2014 • Erik Cuevas, Diego Oliva, Daniel Zaldivar, Marco Perez, Gonzalo Pajares
Electromagnetismlike Optimization (EMO) is a global optimization algorithm, particularly well suited to solve problems featuring nonlinear and multimodal cost functions.
no code implementations • 20 May 2014 • Erik Cuevas, Maurici Gonzalez, Daniel Zaldivar, Marco Perez
This paper presents a novel and effective technique for extracting multiple ellipses from an image.