Search & Display Options
Search within Results:
Field:
author
title
year
keywords
abstract
type
contains:
...
Exclude matches
Display Options:
Field:
all fields
keywords & abstract
additional fields
records per page
Select All
Deselect All
<<
1
2
>>
List View
|
Citations
|
Details
Records
Links
Author
Francesc Tous; Agnes Borras; Robert Benavente; Ramon Baldrich; Maria Vanrell; Josep Llados
Title
Textual Descriptors for browsing people by visual appearence.
Type
Conference Article
Year
2002
Publication
5è. Congrés Català d’Intel·ligència Artificial CCIA
Abbreviated Journal
Volume
Issue
Pages
Keywords
Image retrieval, textual descriptors, colour naming, colour normalization, graph matching.
Abstract
This paper presents a first approach to build colour and structural descriptors for information retrieval on a people database. Queries are formulated in terms of their appearance that allows to seek people wearing specific clothes of a given colour name or texture. Descriptors are automatically computed by following three essential steps. A colour naming labelling from pixel properties. A region seg- mentation step based on colour properties of pixels combined with edge information. And a high level step that models the region arrangements in order to build clothes structure. Results are tested on large set of images from real scenes taken at the entrance desk of a building.
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;CIC
Approved
no
Call Number
CAT @ cat @ TBB2002a
Serial
287
Permanent link to this record
Author
Antonio Esteban Lansaque; Carles Sanchez; Agnes Borras; Marta Diez-Ferrer; Antoni Rosell; Debora Gil
Title
Stable Anatomical Structure Tracking for video-bronchoscopy Navigation
Type
Conference Article
Year
2016
Publication
19th International Conference on Medical Image Computing and Computer Assisted Intervention Workshops
Abbreviated Journal
Volume
Issue
Pages
Keywords
Lung cancer diagnosis; video-bronchoscopy; airway lumen detection; region tracking
Abstract
Bronchoscopy allows to examine the patient airways for detection of lesions and sampling of tissues without surgery. A main drawback in lung cancer diagnosis is the diculty to check whether the exploration is following the correct path to the nodule that has to be biopsied. The most extended guidance uses uoroscopy which implies repeated radiation of clinical sta and patients. Alternatives such as virtual bronchoscopy or electromagnetic navigation are very expensive and not completely robust to blood, mocus or deformations as to be extensively used. We propose a method that extracts and tracks stable lumen regions at dierent levels of the bronchial tree. The tracked regions are stored in a tree that encodes the anatomical structure of the scene which can be useful to retrieve the path to the lesion that the clinician should follow to do the biopsy. We present a multi-expert validation of our anatomical landmark extraction in 3 intra-operative ultrathin explorations.
Address
Athens; Greece; October 2016
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
MICCAIW
Notes
IAM; 600.075
Approved
no
Call Number
Admin @ si @ LSB2016b
Serial
2857
Permanent link to this record
Author
Debora Gil; Agnes Borras; Sergio Vera; Miguel Angel Gonzalez Ballester
Title
A Validation Benchmark for Assessment of Medial Surface Quality for Medical Applications
Type
Conference Article
Year
2013
Publication
9th International Conference on Computer Vision Systems
Abbreviated Journal
Volume
7963
Issue
Pages
334-343
Keywords
Medial Surfaces; Shape Representation; Medical Applications; Performance Evaluation
Abstract
Confident use of medial surfaces in medical decision support systems requires evaluating their quality for detecting pathological deformations and describing anatomical volumes. Validation in the medical imaging field is a challenging task mainly due to the difficulties for getting consensual ground truth. In this paper we propose a validation benchmark for assessing medial surfaces in the context of medical applications. Our benchmark includes a home-made database of synthetic medial surfaces and volumes and specific scores for evaluating surface accuracy, its stability against volume deformations and its capabilities for accurate reconstruction of anatomical volumes.
Address
Sant Petersburg; Russia; July 2013
Corporate Author
Thesis
Publisher
Springer Berlin Heidelberg
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
LNCS
Series Volume
Series Issue
Edition
ISSN
0302-9743
ISBN
978-3-642-39401-0
Medium
Area
Expedition
Conference
ICVS
Notes
IAM; 600.044; 600.060
Approved
no
Call Number
Admin @ si @ GBV2013
Serial
2300
Permanent link to this record
Author
Carles Sanchez; Antonio Esteban Lansaque; Agnes Borras; Marta Diez-Ferrer; Antoni Rosell; Debora Gil
Title
Towards a Videobronchoscopy Localization System from Airway Centre Tracking
Type
Conference Article
Year
2017
Publication
12th International Conference on Computer Vision Theory and Applications
Abbreviated Journal
Volume
Issue
Pages
352-359
Keywords
Video-bronchoscopy; Lung cancer diagnosis; Airway lumen detection; Region tracking; Guided bronchoscopy navigation
Abstract
Bronchoscopists use fluoroscopy to guide flexible bronchoscopy to the lesion to be biopsied without any kind of incision. Being fluoroscopy an imaging technique based on X-rays, the risk of developmental problems and cancer is increased in those subjects exposed to its application, so minimizing radiation is crucial. Alternative guiding systems such as electromagnetic navigation require specific equipment, increase the cost of the clinical procedure and still require fluoroscopy. In this paper we propose an image based guiding system based on the extraction of airway centres from intra-operative videos. Such anatomical landmarks are matched to the airway centreline extracted from a pre-planned CT to indicate the best path to the nodule. We present a
feasibility study of our navigation system using simulated bronchoscopic videos and a multi-expert validation of landmarks extraction in 3 intra-operative ultrathin explorations.
Address
Porto; Portugal; February 2017
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
VISAPP
Notes
IAM; 600.096; 600.075; 600.145
Approved
no
Call Number
Admin @ si @ SEB2017
Serial
2943
Permanent link to this record
Select All
Deselect All
<<
1
2
>>
List View
|
Citations
|
Details