|
Records |
Links |
|
Author |
Josep Llados; Enric Marti; Jaime Lopez-Krahe |
|
|
Title |
A Hough-based method for hatched pattern detection in maps and diagrams |
Type |
Conference Article |
|
Year |
1999 |
Publication |
Proceeding of the Fifth Int. Conf. Document Analysis and Recognition ICDAR ’99 |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
479-482 |
|
|
Keywords |
|
|
|
Abstract |
A hatched area is characterized by a set of parallel straight lines placed at regular intervals. In this paper, a Hough-based schema is introduced to recognize hatched areas in technical documents from attributed graph structures representing the document once it has been vectorized. Defining a Hough-based transform from a graph instead of the raster image allows to drastically reduce the processing time and, second, to obtain more reliable results because straight lines have already been detected in the vectorization step. A second advantage of the proposed method is that no assumptions must be made a priori about the slope and frequency of hatching patterns, but they are computed in run time for each hatched area. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
DAG;IAM; |
Approved |
no |
|
|
Call Number |
IAM @ iam @ LIM1999b |
Serial |
1580 |
|
Permanent link to this record |
|
|
|
|
Author |
Enric Marti; Jordi Regincos;Jaime Lopez-Krahe; Juan J.Villanueva |
|
|
Title |
Interpretación de dibujos lineales a mano alzada como objetos 3D |
Type |
Conference Article |
|
Year |
1992 |
Publication |
V Simposium Nacional de Reconocimiento de Formas y Análisis de Imágenes |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
València |
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
IAM;ISE |
Approved |
no |
|
|
Call Number |
IAM @ iam @ MRL1992 |
Serial |
1601 |
|
Permanent link to this record |
|
|
|
|
Author |
Enric Marti; Jordi Regincos; Jaime Lopez-Krahe |
|
|
Title |
Interpretación de Dibujos Lineales a Mano Alzada Representando Escenas Tridimensionales |
Type |
Conference Article |
|
Year |
1991 |
Publication |
Primer Congreso Español de Informática. |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
IAM |
Approved |
no |
|
|
Call Number |
IAM @ iam @ MRL1991 |
Serial |
1610 |
|
Permanent link to this record |
|
|
|
|
Author |
J.A.Perez; Enric Marti; Juan J.Villanueva |
|
|
Title |
Interfase de Usuario de Entrada de Datos 3D en un CAD de Cartografía Urbana a partir de Pares Estereoscópicos |
Type |
Conference Article |
|
Year |
1992 |
Publication |
II Congreso Español de Informática Gráfica |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
47-60 |
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
CEIG |
|
|
Notes |
IAM;ISE |
Approved |
no |
|
|
Call Number |
IAM @ iam @ PVM1992 |
Serial |
1624 |
|
Permanent link to this record |
|
|
|
|
Author |
Ferran Poveda; Jaume Garcia; Enric Marti; Debora Gil |
|
|
Title |
Validation of the myocardial architecture in DT-MRI tractography |
Type |
Conference Article |
|
Year |
2010 |
Publication |
Medical Image Computing in Catalunya: Graduate Student Workshop |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
29-30 |
|
|
Keywords |
|
|
|
Abstract |
Deep understanding of myocardial structure may help to link form and funcion of the heart unraveling crucial knowledge for medical and surgical clinical procedures and studies. In this work we introduce two visualization techniques based on DT-MRI streamlining able to decipher interesting properties of the architectural organization of the heart. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
Girona (Spain) |
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
MICCAT |
|
|
Notes |
IAM |
Approved |
no |
|
|
Call Number |
IAM @ iam @ PGM2010 |
Serial |
1626 |
|
Permanent link to this record |
|
|
|
|
Author |
Petia Radeva; Enric Marti |
|
|
Title |
An improved model of snakes for model-based segmentation |
Type |
Conference Article |
|
Year |
1995 |
Publication |
Proceedings of Computer Analysis of Images and Patterns |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
515-520 |
|
|
Keywords |
|
|
|
Abstract |
The main advantage of segmentation by snakes consists in its ability to incorporate smoothness constraints on the detected shapes that can occur. Likewise, we propose to model snakes with other properties that reflect the information provided about the object of interest in a different extent. We consider different kinds of snakes, those searching for contours with a certain direction, those preserving an object’s model, those seeking for symmetry, those expanding open, etc. The availability of such a collection of snakes allows not only the more complete use of the knowledge about the segmented object, but also to solve some problems of the existing snakes. Our experiments on segmentation of facial features justify the usefulness of snakes with different properties. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
CAIP |
|
|
Notes |
MILAB;IAM |
Approved |
no |
|
|
Call Number |
IAM @ iam @ RaM1995b |
Serial |
1632 |
|
Permanent link to this record |
|
|
|
|
Author |
Petia Radeva; Enric Marti |
|
|
Title |
Facial Features Segmentation by Model-Based Snakes |
Type |
Conference Article |
|
Year |
1995 |
Publication |
International Conference on Computing Analysis and Image Processing |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
Deformable models have recently been accepted as a standard technique to segment different features in facial images. Despite they give a good approximation of the salient features in a facial image, the resulting shapes of the segmentation process seem somewhat artificial with respect to the natural feature shapes. In this paper we show that active contour models (in particular, rubber snakes) give more close and natural representation of the detected feature shape. Besides, using snakes for facial segmentation frees us from the problem of determination of the numerous weigths of deformable models. Another advantage of rubber snakes is their reduced computational cost. Our experiments using rubber snakes for segmentation of facial snapshots have shown a significant improvement compared to deformable models. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
Bellaterra (Barcelona), Spain |
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
MILAB;IAM |
Approved |
no |
|
|
Call Number |
IAM @ iam @ RAM1995a |
Serial |
1633 |
|
Permanent link to this record |
|
|
|
|
Author |
Petia Radeva; Joan Serrat; Enric Marti |
|
|
Title |
A snake for model-based segmentation |
Type |
Conference Article |
|
Year |
1995 |
Publication |
Proc. Conf. Fifth Int Computer Vision |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
816-821 |
|
|
Keywords |
snakes; elastic matching; model-based segmenta tion |
|
|
Abstract |
Despite the promising results of numerous applications, the hitherto proposed snake techniques share some common problems: snake attraction by spurious edge points, snake degeneration (shrinking and attening), convergence and stability of the deformation process, snake initialization and local determination of the parameters of elasticity. We argue here that these problems can be solved only when all the snake aspects are considered. The snakes proposed here implement a new potential eld and external force in order to provide a deformation convergence, attraction by both near and far edges as well as snake behaviour selective according to the edge orientation. Furthermore, we conclude that in the case of model-based seg mentation, the internal force should include structural information about the expected snake shape. Experiments using this kind of snakes for segmenting bones in complex hand radiographs show a signicant improvement. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
MILAB;ADAS;IAM |
Approved |
no |
|
|
Call Number |
IAM @ iam @ RSM1995 |
Serial |
1634 |
|
Permanent link to this record |
|
|
|
|
Author |
F. Javier Sanchez; Jordi Vitria; Enric Marti |
|
|
Title |
Transformaciones Morfológicas de Polígonos Isotéticos |
Type |
Conference Article |
|
Year |
1991 |
Publication |
Primer Congreso Español de Informática Gráfica. |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
OR;IAM;MV |
Approved |
no |
|
|
Call Number |
IAM @ iam @ SVM1991 |
Serial |
1648 |
|
Permanent link to this record |
|
|
|
|
Author |
Gemma Sanchez; Ernest Valveny; Josep Llados; Enric Marti; Oriol Ramos Terrades; N.Lozano; Joan Mas |
|
|
Title |
A system for virtual prototyping of architectural projects |
Type |
Conference Article |
|
Year |
2003 |
Publication |
Proceedings of Fifth IAPR International Workshop on Pattern Recognition |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
65-74 |
|
|
Keywords |
|
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
DAG;IAM |
Approved |
no |
|
|
Call Number |
IAM @ iam @ SVL2003 |
Serial |
1650 |
|
Permanent link to this record |