Browsing by Author "Sobrevilla Frisón, Pilar"
Now showing items 1-20 of 20
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A Fuzzy Regional-Based Approach for Detecting Cerebrospinal Fluid Regions in presence of Multiple Sclerosis Lesions
Aymerich Martínez, Francisco Javier; Montseny Masip, Eduard; Sobrevilla Frisón, Pilar; Rovira, Àlex (Springer-Verlag, Berlin, Heidelberg,, 2010)
Conference report
Open Access -
A recurrent neural network approach for 3d vision-based force estimation
Avilés Rivero, Angélica Ivone; Marbán González, Arturo; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia; Fernández Ruzafa, José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Restricted access - publisher's policyRobotic-assisted minimally invasive surgery has demonstrated its benefits in comparison with traditional procedures. However, one of the major drawbacks of current robotic system approaches is the lack of force feedback. ... -
Adaptive segmentation and mask-specific Sobolev inpainting of specular highlights for endoscopic images
Alsaleh, Samar M.; Avilés Rivero, Angélica; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia; Hahn, James K. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference lecture
Restricted access - publisher's policyMinimally invasive surgical and diagnostic systems rely on endoscopic images of internal organs to assist medical tasks. Specular highlights are common on those images due to the strong reflectivity of the mucus layer on ... -
An approach for physiological motion compensation in robotic-assisted cardiac surgery
Avilés Rivero, Angélica Ivone; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia (2014-11-14)
Article
Open AccessThe lack of physiological motion compensation is a major problem in robotic-assisted cardiac surgery. Since the heart is beating while the surgeon carried out the procedure, dexterity of the surgeon’s and precision are ... -
Application of a Mamdani-type fuzzy rule-based system to segment periventricular cerebral veins in susceptibility-weighted images
Aymerich Martínez, Francisco Javier; Sobrevilla Frisón, Pilar; Montseny Masip, Eduard; Rovira, Alex (Springer, 2016)
Conference report
Open AccessThis paper presents an algorithm designed to segment veins in the periventricular region of the brain in susceptibility-weighted magnetic resonance images. The proposed algorithm is based on a Mamdani-type fuzzy rule-based ... -
Application of fuzzy techniques to the design of algorithms in computer vision
Montseny Masip, Eduard; Sobrevilla Frisón, Pilar (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1998)
Article
Open AccessIn this paper a method for the design of algorithms is presented which use fuzzy techniques in order to achieve a better vagueness treatment. A base of rules will be developed in order to design the algorithms. Data ... -
Automatic and robust single-camera specular highlight removal in cardiac images
Alsaleh, Samar M.; Avilés Rivero, Angélica; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia; Hahn, James K. (Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference lecture
Restricted access - publisher's policyIn computer-assisted beating heart surgeries, accurate tracking of the heart’s motion is of huge importance and there is a continuous need to eliminate any source of error that might disturb the tracking process. One source ... -
Combinatòria i complexitat algorísmica
Berenguer Villaseca, Xavier; Casas, Rafael; Díaz Cort, Josep; Sobrevilla Frisón, Pilar (Universitat Politècnica de Barcelona, 1980-12)
Conference report
Open Access -
Editorial [6th. and 7th. Conferences of the Spanish Society for Fuzzy Logics: selection of papers]
Gil Álvarez, Pedro Angel; Montseny Masip, Eduard; Sobrevilla Frisón, Pilar (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1998)
Review
Open Access -
Editorial [Joint EUSFLAT-LFA 2005 Conference]
Sobrevilla Frisón, Pilar; Montseny Masip, Eduard (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2006)
Review
Open Access -
Estudi de la transformació de l'espai de color RGB a l'espai de color HSV
Grau Gotés, Maria Àngela; Grau Sánchez, Miguel; Montseny Masip, Eduard; Sobrevilla Frisón, Pilar (2008-09-26)
Research report
Open AccessS’apliquen les tècniques clàssiques de propagació de l’error a la transformació de l’espai de color RGB en l’espai de color HSV a un conjunt de 1098 imatges test. El conjunt d’imatges test són 183 paletes de color i sis ... -
Filtering False Detections of Small Multiple Sclerosis Lesions using Fuzzy Regional Analysis
Aymerich Martínez, Francisco Javier; Sobrevilla Frisón, Pilar; Montseny Masip, Eduard; Rovira, Àlex (2010)
Conference report
Open AccessThis paper introduces a method to filter false detections of small multiple sclerosis lesions in magnetic resonance images based on the analysis of regional features. The proposed method considers as starting point the ... -
FLCSFD - A fuzzy local-based approach for detecting cerebrospinal fluid regions in presence of MS lesions
Aymerich Martínez, Francisco Javier; Montseny Masip, Eduard; Sobrevilla Frisón, Pilar; Rovira, Àlex (2009-04)
Conference lecture
Restricted access - publisher's policyMagnetic Resonance Imaging (MRI) is an important paraclinical tool for diagnosing Multiple Sclerosis (MS) and providing several markers of disease activity and evolution. Traditionally, hypointense lesions on ... -
Force-feedback sensory substitution using supervised recurrent learning for robotic-assisted surgery
Avilés Rivero, Angélica; Alsaleh, Samar M.; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia (Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference report
Restricted access - publisher's policyThe lack of force feedback is considered one of the major limitations in Robot Assisted Minimally Invasive Surgeries. Since add-on sensors are not a practical solution for clinical environments, in this paper we present a ... -
Fuzzy approach toward reducing false positives in the detection of small multiple sclerosis lesions in magnetic resonance images
Aymerich Martínez, Francisco Javier; Sobrevilla Frisón, Pilar; Montseny Masip, Eduard; Rovira Cañellas, Alex (2011)
Conference report
Restricted access - publisher's policy -
Fuzzy sets in computer vision: an overview
Sobrevilla Frisón, Pilar; Montseny Masip, Eduard (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2003)
Article
Open AccessEvery computer vision level crawl with uncertainty, what makes its management a significant problem to be considered and solved when trying for automated systems for scene analysis and interpretation. This is why fuzzy set ... -
Sensorless force estimation using a neuro-vision-based approach for robotic-assisted surgery
Avilés Rivero, Angélica Ivone; Alsaleh, Samar M.; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference lecture
Open AccessThis paper addresses the issue of lack of force feedback in robotic-assisted minimally invasive surgeries. Force is an important measure for surgeons in order to prevent intra-operative complications and tissue damage. ... -
State of the art survey on MRI brain tumor segmentation
Gordillo Castillo, Nelly; Montseny Masip, Eduard; Sobrevilla Frisón, Pilar (2013-06-20)
Article
Restricted access - publisher's policyBrain tumor segmentation consists of separating the different tumor tissues (solid or active tumor, edema,and necrosis) from normal brain tissues: gray matter (GM), white matter (WM), and cerebrospinal fluid (CSF). In ... -
Unconstrained L1-regularized minimization with interpolated transformations for heart motion compensation
Avilés Rivero, Angélica Ivone; Sobrevilla Frisón, Pilar; Casals Gelpí, Alicia (2014)
Conference report
Restricted access - publisher's policyMotion compensation constitutes a challenging issue in minimally invasive beating heart surgery. Since the zone to be repaired has a dynamic behaviour, precision and surgeon's dexterity decrease. In order to solve this ... -
Use of fuzzy techniques for detection of multiple sclerosis small lesions
Aymerich Martínez, Francisco Javier; Sobrevilla Frisón, Pilar; Gili Planas, Jaume; Montseny Masip, Eduard (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1998)
Article
Open Access