Sanz, P. J.; del Pobil, A. P.; Iñesta, J. M.; Recatalá, G.

Vision-Guided Grasping of Unknown Objects for Service Robots Proceedings Article

In: Proceedings of the 1998 IEEE Int. Conf. on Robotics and Automation, pp. 3018–3025, IEEE, Leuven (Belgium), 1998, ISBN: 0-7803-4758-7.

BibTeX | Tags:

Pons, A.; Iñesta, J. M.; Gil, R.; Sanchiz, J. M.; Danger, R.

Un Algoritmo para Detectar Puntos Dominantes Usando una Red Neuronal Artificial Proceedings Article

In: Memorias del III Taller Iberoamericano de Reconocimiento de Patrones, pp. 421–430, Ciudad de México, 1998, ISBN: 970-18-1081-3.

BibTeX | Tags:

Calera-Rubio, J.; Carrasco, R. C.

Computing the relative entropy between regular tree languages Journal Article

In: Information Processing Letters, vol. 68, pp. 283-289, 1998.

BibTeX | Tags:

Sanchiz, J. M.; Pla, F.; Iñesta, J. M.

Using Neural Networks to Detect Dominant Points in Chain-coded Contours Journal Article

In: International Journal of Pattern Recognition and Artificial Intelligence, vol. 12, pp. 661-675, 1998.

BibTeX | Tags:

Marín, R.; Recatalá, G.; Sanz, P. J.; Iñesta, J. M.; del Pobil, A. P.

Telerobotic System based on Natural Language and Computer Vision Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 1416, pp. 353-364, 1998.

BibTeX | Tags:

Danger, R.; Gil, R.; Pons, A.; Sanchiz, J. M.; Iñesta, J. M.

A Generalisation Study on Neural Corner Detection Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 1484, pp. 385-396, 1998.

BibTeX | Tags:

Oncina, J.

The data driven approach applied to the OSTIA algorithm Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 1433, pp. 50-56, 1998.

Links | BibTeX | Tags:

Castellanos, A.; Vidal, E.; Varó, M. A.; Oncina, J.

Language understanding and subsequential transducer learning Journal Article

In: Computer Speech and Language, vol. 12, pp. 193-228, 1998.

BibTeX | Tags:

Micó, L.; Oncina, J.

Comparison of fast nearest neighbour classifiers for handwritten character recognition Journal Article

In: Pattern Recognition Letters, vol. 19, pp. 351-356, 1998.

Links | BibTeX | Tags:

Buendía, M.; Iñesta, J. M.

Reliable polygonal approximations of Imaged Real Objects through dominant point detection Journal Article

In: Pattern Recognition, vol. 31, no. 6, pp. 685-699, 1998.

Abstract | BibTeX | Tags:

@article{k245,

title = {Reliable polygonal approximations of Imaged Real Objects through dominant point detection},

author = {M. Buendía and J. M. Iñesta},

year  = {1998},

date = {1998-01-01},

urldate = {1998-01-01},

journal = {Pattern Recognition},

volume = {31},

number = {6},

pages = {685-699},

abstract = {The problem of data reduction in contours via dominant points is posed, taking into account what usually happens in practice. The algorithms found in the literature often prove their performance with laboratory contours (i.e., artificial curves designed by the authors in order to test their algorithms), but the shapes in real images are quite different: noise, quantization, and high inter and intra-shape variability are effects that should be taken into account. The presence of noise has already been faced  by using a gaussian smoothing. To deal with variability only an algorithm working independently of input parameters, adjusting itself to each curve, could give satisfactory results if an efficient 

 and reliable representation of the contours is desired. Here we focus in the problem of image quantization. The addition to the existent non parametric algorithms of a criterion for deleting collinear points is very useful, since it increments the compression rate, without raising the error committed by the polygonal approximation. Thus, the number of segments necessary to reliably represent the shape of the contours is reduced. For evaluating it, a new measurement of the error has been defined that assess the goodness of the approximation with a single value, taking into account both the compression rate and the reliability of the selected set of points. 

 

 We will also focus on the conditions for an efficient (few 

 points) and precise (low error) dominant point extraction that 

 preserves the original shape. A measurement of the committed 

 error (optimization error, E0) that takes into account both aspects 

 is defined for studying this feature. Some classic algorithms are 

 reviewed and compared to ours, showing that the latter fits well 

 to data using few points (low E0), so accurate and efficient 

 approximations are obtained.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

Close

Carrasco, R. C.; Oncina, J.; Calera-Rubio, J.

Stochastic Inference of Regular Tree Languages Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 1433, pp. 187-198, 1998, ISSN: 0302-9743.

BibTeX | Tags:

Iñesta, J. M.; García, P.; Gracia, I.

Técnicas Básicas para el Diseño de Compiladores Book

Universitat Jaume I, Castellón, Spain, 1998.

BibTeX | Tags:

Sotoca, J. M.; Cervera, J. M.; Buendía, M.; Iñesta, J. M.

Clasificación de Microcalcificaciones en Mamografía por Criterios Morfológicos Proceedings Article

In: Martín-Rubio, F.; Triguero-Ruiz, F. A. (Ed.): Actas de las 2as Jornadas de Transferencia Tecnológica de Inteligencia Artificial, pp. 67–76, Torremolinos, 1997, ISBN: 84-8498-764-7.

BibTeX | Tags:

Sanz, P. J.; del Pobil, A. P.; Iñesta, J. M.

Vision-Guided Grasping for Real World Applications Proceedings Article

In: Actas de la VII Conferencia de la Asociación Española para la Inteligencia Artificial, pp. 653–663, CAEPIA, Malaga, 1997, ISBN: 84-8498-765-5.

BibTeX | Tags:

Sanz, P. J.; del Pobil, A. P.; Iñesta, J. M.

Real-time Grasping of Unknown Objects Based on Computer Vision Proceedings Article

In: Proceedings of the 8th International Conference on Advanced Robotics, pp. 319–324, IEEE, Monterey (USA), 1997, ISBN: 0-7803-4160-0.

BibTeX | Tags:

Sanz, P. J.; del Pobil, A. P.; Iñesta, J. M.

Curvature-Symmetry Fusion in Planar Grasping Characterization from 2D Images Proceedings Article

In: Potter, D.; Matthews, M.; Ali, M. (Ed.): Proceedings of the 10th Int. Conf. on Industrial and Engineering Application of Artificial Intelligence and Expert Systems, pp. 45–52, Gordon and Breach Publ., Atlanta (USA), 1997, ISBN: 90-5699-615-0.

BibTeX | Tags:

Quiles, J. A.; Salas, F.; Oncina, J.; Balboa, R. M.

The Fishbone Model Applied to Bidimensional Object Location Proceedings Article

In: VII Simposium Nacional de Reconocimiento de Formas y Análisis de Imágen, AERFAI - Asociación Española de Reconocimiento de Formas y Análisis de Imágenes, Barcelona, Spain, 1997.

BibTeX | Tags:

Gómez-Ballester, E.; Micó, L.; Oncina, J.; Forcada, M. L.

An empirical method to improve edit-distance parameters for a nearest-neighbor-based classification task Proceedings Article

In: VII Spanish Symposium on Pattern Recognition and Image Analysis, Barcelona, Spain, 1997.

BibTeX | Tags:

Marín, R.; Sanz, P. J.; Coltell, O.; Iñesta, J. M.; Barber, F.

Student-teacher communication directed to computer-based learning environments Journal Article

In: Displays, vol. 17, pp. 167-178, 1997.

BibTeX | Tags:

García-Doménech, R. V.; Iñesta, J. M.; Asins, E.; Aznar, I.; Llixiona, J.

Prognostic Factors in Endometrial Carcinoma: Risk Groups and Adjuvant Radiotherapy Journal Article

In: European Journal of Gynaecological Oncology, vol. 18, pp. 164-170, 1997.

BibTeX | Tags:

Buendía, M.; Cibirían, R.; Salvador, C.; Roldán, J. M.; Iñesta, J. M.

Automatic analysis of speckle interferometry fringes Journal Article

In: Applied Optics, vol. 36, pp. 2395-2400, 1997.

Abstract | BibTeX | Tags:

del Pobil, A. P.; Sanz, P. J.; Iñesta, J. M.

An automatic transformation from bimodal to psudo-binary images Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 1310, pp. 231-238, 1997.

BibTeX | Tags:

Iñesta, J. M.; Sanz, P. J.; del Pobil, A. P.

Self-adjusting pseudo-binarization of grey level images Proceedings Article

In: Proceedings of VII Symposium Nacional de Reconocimiento de Formas y Análisis de Imagen, pp. 7, 1997.

BibTeX | Tags:

Oncina, J.

The Cocke-Younger-Kasami algorithm for cyclic strings Proceedings Article

In: 13th International Conference on Pattern Recognition, IAPR IEEE, Viena, Austria, 1996, ISBN: 0-8186-7282-X.

Links | BibTeX | Tags:

Sanchiz, J. M.; Iñesta, J. M.; Pla, F.

A Neural network-based Algorithm to Detect Dominant Points from the Chain-code of a Contour Proceedings Article

In: 13th International Conference on Pattern Recognition, pp. 325–329, IAPR IEEE, Viena (Austria), 1996, ISBN: 0-8186-7282-X.

BibTeX | Tags:

Sanz, P. J.; Iñesta, J. M.; del Pobil, A. P.

Towards an Automatic Determination of Grasping Points Through a Machine Vision Approach Proceedings Article

In: Tanaka, T.; Phsuga, S.; Ali, M. (Ed.): Proceedings of the 9th Int. Conf. on Industrial and Engineering Application of Artificial Intelligence and Expert Systems, pp. 767–772, Gordon and Breach Publ., Fukuoka (Japan), 1996, ISBN: 90-5699-524-3.

BibTeX | Tags:

Micó, L.

Algoritmos de búsqueda de vecinos más próximos en espacios métricos PhD Thesis

1996.

BibTeX | Tags:

Iñesta, J. M.; Buendía, M.; Sarti, M. A.

Local symmetries of digital contours from their chain codes Journal Article

In: Pattern Recognition, vol. 29, pp. 1737-1749, 1996.

Abstract | BibTeX | Tags:

@article{k48,

title = {Local symmetries of digital contours from their chain codes},

author = {J. M. Iñesta and M. Buendía and M. A. Sarti},

year  = {1996},

date = {1996-01-01},

journal = {Pattern Recognition},

volume = {29},

pages = {1737-1749},

abstract = {In this work, symmetry is evaluated as a numeric feature for each point 

of the contour of a shape, using only the positions of a local vicinity of points. 

A measurement is defined, named as Local Symmetric Deficiency (LSD), so 

that the lower this quantity is, the higher the symmetry will be in the local 

region considered. This approach is simpler than previous ones both from a 

conceptual point of view and for its implementation, since it is reduced only 

to a suitable manipulation of the Freeman chain code of the studied curve. A 

vicinity of pi is determined, in which the amount of local symmetry of the 

curve is evaluated. We can state that it reflects a similarity rate between the 

arriving and exiting parts of the curve relative to the point, in a "radius" of k 

points. A smoothed version of the local symmetric deficiency can be used as 

input for algorithms of minima seeking, in order to detect local maxima of 

symmetry. Its computational cost is very low since its performance is close to 

a linear complexity, and it has the advantages of a parallel algorithm, since 

values for LSD can be computed for each point independently. 

 

 This scheme can be used in a number of applications, like shape 

description, curve matching, labelling points of interest in shapes as landmarks, 

and corner detection. We combine the measurement of local symmetry with an 

evaluation of the curvature as angle deflection at each candidate point, in order 

to distinguish between symmetric corners and symmetric flat points. The results 

have shown the feasibility of this approach and its good performance. The 

algorithm is suitable for analyzing biological or medical shapes, because it is 

able to deal with non perfectly symmetric shapes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

Close

Oncina, J.; Varó, M. A.

Using domain information during the learning of a subsequential transducer Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, pp. 313-325, 1996.

BibTeX | Tags:

Higuera, C. De La; Oncina, J.; Vidal, E.

Identification of DFA: data-dependent versus data-independent algorithms Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 1147, pp. 313-325, 1996.

Links | BibTeX | Tags:

Micó, L.; Oncina, J.; Carrasco, R. C.

A fast branch & bound nearest neighbour classifier in metric spaces Journal Article

In: Pattern Recognition Letters, vol. 17, pp. 731-739, 1996.

Links | BibTeX | Tags:

Forcada, M. L.; Moreno-Seco, F.

Learning compiler design as a research activity Journal Article

In: Revista con ISSN sin localizar, vol. 7, pp. 73-98, 1996.

BibTeX | Tags:

Iñesta, J. M.; Sarti, M. A.; Buendía, M.

Técnicas de análisis digital de imagen para el estudio de la morfología de los pedículos de piezas verebrales humanas Proceedings Article

In: XVI Congreso Nacional de la Sociedad Española de Anatomía, Santiago, Spain, 1995.

BibTeX | Tags:

Iñesta, J. M.; Sarti, M. A.; Buendía, M.

Localización automática de los ejes de referencia en imágenes de la proyección axial de vértebras aisladas Proceedings Article

In: XVI Congreso Nacional de la Sociedad Española de Anatomía, Santiago, Spain, 1995.

BibTeX | Tags:

Iñesta, J. M.; Sarti, M. A.; Buendía, M.

Criterios para la automatización de la caracterización morfométrica de la proyección axial de vértebras humanas Proceedings Article

In: XVI Congreso Nacional de la Sociedad Española de Anatomía, Santiago, Spain, 1995.

BibTeX | Tags:

Iñesta, J. M.; Sarti, M. A.; Buendía, M.

On the Possibility of Objective Identification of Human Vertebrae Through Pattern Recognition Algorithms Proceedings Article

In: Fifth Int. Conf. on Image Processing and its Applications, pp. 148–152, IEE Edinburgh (UK), 1995, ISBN: 0-85296-642-3.

BibTeX | Tags:

Iñesta, J. M.; Buendía, M.

Computation of Fourier Descriptors from Polygonal Curves Proceedings Article

In: Calvo, A.; Medina, R. (Ed.): Proceedings of the V Spanish Symposium on Pattern Recognition and Image Analysis, AERFAI Córdoba, 1995, ISBN: 84-605-2447-7.

BibTeX | Tags:

Gómez-Ballester, E.; Micó, L.; Oncina, J.

Testing the linear approximating and eliminating search algorithm in handwritten character recognition tasks Proceedings Article

In: VI Spanish Symposium on Pattern Recognition and Image Analysis, AERFAI - Asociación Española de Reconocimiento de Formas y Análisis de Imágenes, Córdoba, Spain, 1995.

BibTeX | Tags:

Iñesta, J. M.; Villegas, J. A.

El uso de herramientas de inteligencia artificial en el estudio de la nutrición humana Proceedings Article

In: Aldeguer, R. Rizo; Chamizo, J. M. García (Ed.): Transferencia Tecnológica de I. A. a Industria, Medicina y Aplicaciones Sociales, pp. 77-86, AEPIA, Alicante, Spain, 1995, ISBN: 84-920982-1-X.

BibTeX | Tags:

Sanchiz, J. M.; Pla, F.; Iñesta, J. M.

Detección de puntos dominantes en contornos por medio de redes neuronales Proceedings Article

In: Actas de la VI Conferencia de la Asociación Española para la Inteligencia Artificial, pp. 301–310, AEPIA, Alicante (Spain), 1995.

BibTeX | Tags:

Micó, L.; Oncina, J.

A new criterion for approximating in a recent version with linear preprocessing of the AESA algorithm Book Chapter

In: Advances in pattern recognition and applications, Chapter -, pp. 11, World Scientific Publishing, 1995.

Links | BibTeX | Tags:

Iñesta, J. M.; Izquierdo, E.; Sarti, M. A.

Software tools for using a personal computer as a timer device to assess human kinematic performance: a case study Journal Article

In: Computer Methods and Programs in Biomedicine, vol. 47, pp. 257-265, 1995.

Abstract | BibTeX | Tags:

Iñesta, J. M.; Buendía, M.

A simple algorithm to evaluate the local symmetry at each point of a closed contour Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 790, pp. 448-455, 1995.

BibTeX | Tags:

Sanz, P. J.; Iñesta, J. M.; Buendía, M.; Sarti, M. A.

A Fast and Precise Way for Computation of Moments for Morphometry in Medical Images Proceedings Article

In: Hernández-Sande, C.; Hermida-Domínguez, R. C.; Arias-Rodríguez, J. E. (Ed.): Proceedings of the V int. Symposium on Biomedical Engineering, pp. 1–2, Santiago de Compostela, 1994, ISBN: 84-600-8981-9.

BibTeX | Tags:

Iñesta, J. M.

Algoritmos de Visión Artificial y de Reconocimiento de Patrones para el Estudio Morfométrico del Eje Raquídeo Humano PhD Thesis

1994, ISBN: 84-370-2064-6.

BibTeX | Tags:

Oncina, J.; Castellanos, A.; Vidal, E.; Jiménez, V.

Corpus-Based Machine Translation through Subsequential Transducers Proceedings Article

In: 3rd International Conference on the Cognitive Science of Natural Language Processing, Dublin, Irlanda, 1994.

BibTeX | Tags:

Iñesta, J. M.; Sanz, P. J.; Sarti, M. A.; Buendía, M.

An Algorithm to Objectively Assess Vertebral Scoliosis from Geometric Features Proceedings Article

In: Proceedings of the Leeds Annual Statistical Research Workshop., University of Leeds Leeds, UK, 1994.

Abstract | BibTeX | Tags:

Jiménez, V. M.; Vidal, E.; Oncina, J.; Castellanos, A.; Rulot, H. M.; Sánchez, J. A.

Spoken-Language Machine Translation in Limited-Domain Tasks Proceedings Article

In: Proceedings in Artificial Intelligence: CRIM/FORWISS Workshop on Progress and Prospects of Speech Research and Technology, pp. 262-265, 1994.

Links | BibTeX | Tags:

Oncina, J.; Carrasco, R. C.

Grammatical Inference and Applications Book

Springer-Verlag, Berlín, 1994, ISBN: 3-540-58473-0.

BibTeX | Tags:

Oncina, J.; Carrasco, R. C.

Learning Stochastic Regular Grammars by Means of a State Merging Method Journal Article

In: Lecture Notes in Computer Science - Lecture Notes in Artificial Intelligence, vol. 862, pp. 130-152, 1994.

Links | BibTeX | Tags:

PUBLICATIONS

1998

1997

1996

1995

1994