Enea Poletti's Publications List

Segmentation of vessels through supervised classification in wide-field retina images of infants with Retinopathy of Prematurity

2012-10-04T10:43:52Z

E Poletti, A Ruggeri (2012) Computer-Based Medical Systems (CBMS), 2012 25th International Symposium on : 1-6

A review of thresholding strategies applied to human chromosome segmentation.

2012-10-04T10:39:25Z

Karyotype analysis is a widespread procedure in cytogenetics to assess the presence of genetic defects by the visualization of the structure of chromosomes. The procedure is lengthy and repetitive and an effective automatic analysis would greatly help the cytogeneticist routine work. Still, automatic segmentation and the full disentangling of chromosomes are open issues. The first step in every au...

Enea Poletti, Francesca Zappelli, Alfredo Ruggeri, Enrico Grisan (2012) Comput Methods Programs Biomed :

A modular framework for the automatic classification of chromosomes in Q-band images.

2012-10-04T10:39:25Z

The manual analysis of the karyogram is a complex and time-consuming operation, as it requires meticulous attention to details and well-trained personnel. Routine Q-band laboratory images show chromosomes that are randomly rotated, blurred or corrupted by overlapping and dye stains. We address here the problem of robust automatic classification, which is still an open issue. The proposed method st...

Enea Poletti, Enrico Grisan, Alfredo Ruggeri (2012) Comput Methods Programs Biomed 105: 2 120-130

Supervised classification of brain tissues through local multi-scale texture analysis by coupling DIR and FLAIR MR sequences

2012-10-04T10:43:52Z

E Poletti, E Veronese, M Calabrese, A Bertoldo, E Grisan (2012) Proceedings of SPIE 8314:

Estimation of prenatal aorta intima-media thickness in ultrasound examination

2012-10-04T10:43:52Z

E Veronese, E Poletti, E Cosmi, E Grisan (2012) Proceedings of SPIE 8315:

A Web-based System for Vessel Tortuosity Estimation in Retinal Images

2011-08-22T14:28:28Z

A. Ruggeri, E. Poletti, D. Fiorin., and L. Tramontan (2011) In Proc. ARVO 2010 Annual Meeting, Fort Lauderdale (FL), USA, May 1-5, 2011.

A Web-based system for the quantitative and reproducible assessment of clinical indexes from the retinal vasculature.

2012-10-04T10:39:25Z

A novel system for the vascular tree identification and the quantitative estimation of arteriolar venular ratio clinical index in retinal fundus images is presented. The system is composed of a module for automatic vascular tracking, an interactive editing interface to correct errors and set the required parameters of analysis, and a module for the computation of clinical indexes. The system was o...

Lara Tramontan, Enea Poletti, Diego Fiorin, Alfredo Ruggeri (2011) IEEE Trans Biomed Eng 58: 3 818-821

Unsupervised Segmentation of Brain Tissues Using Multiphase Level Sets on Multiple MRI Sequences

2011-08-22T14:26:49Z

E. Veronese, E. Poletti, M. Calabrese, P. Gallo, A. Bertoldo, E. Grisan (2011) 2nd IASTED International Conference on Computational Bioscience. July 11-13, 2011, Cambridge, United Kingdom

An improved classification scheme for chromosomes with missing data.

2012-10-04T10:39:25Z

Karyotyping, or the automatic classification of human chromosomes, is mostly based on the analysis of the chromosome specific banding pattern. Unfortunately, the most informative phases of the cell division cycle are composed of long chromosomes that easily overlap: the involved banding pattern information is corrupted, resulting in a drastic increase of the classification error. Assuming the avai...

Enea Poletti, Alfredo Ruggeri, Enrico Grisan (2011) Conf Proc IEEE Eng Med Biol Soc 2011: 5072-5075

From laboratory to clinic: the development of web-based tools for the estimation of retinal diagnostic parameters.

2012-10-04T10:39:25Z

Over the years, tools for the analysis of retinal images have been developed by several research groups but their usage has been mainly confined within the developing institutions. One possibility to foster their adoption is to develop them as web-based tools. We present here three such systems we recently developed. They are specifically focused on the estimation of retinal vascular parameters, s...

Alfredo Ruggeri, Enea Poletti, Diego Fiorin, Lara Tramontan (2011) Conf Proc IEEE Eng Med Biol Soc 2011: 3379-3382

Automatic vessel segmentation in wide-field retina images of infants with retinopathy of prematurity.

2012-10-04T10:39:25Z

The earliest signs of Retinopathy of Prematurity (ROP) are tortuosity and dilation of retinal vessels. Such vascular changes are considered of primary importance for the diagnosis and the follow-up of the disease. However, a widely accepted computerized system for their quantitative measurement is still missing. Images taken from a preterm baby's eye are often low-contrast, noisy, and blurred. Alg...

Enea Poletti, Diego Fiorin, Enrico Grisan, Alfredo Ruggeri (2011) Conf Proc IEEE Eng Med Biol Soc 2011: 3954-3957

Design, Development, and Clinical Evaluation of an Adaptive Optics Device for the Automatic Analysis of the Retina.

2011-08-22T14:31:17Z

This thesis deals with the automatic analysis of colour fundus images and with its applications in the evaluation of hypertensive and diabetic retinopathy. In particular, it focuses on the project of an adaptive optics fundus camera for the retinal fundus acquisition and on the software implementation for the analysis and the quantitative evaluation of the retinopathies. Both hypertension and dia...

Enea Poletti (2010)

A computerized system for CRAE, CRVE and AVR estimation in retinal images.

2010-10-22T10:01:49Z

A. Ruggeri, L. Tramontan, E. Poletti, D. Fiorin (2010) Proc. ARVO 2010 Annual Meeting, Fort Lauderdale (FL), USA, May 2-6, 2010, Nr. 5343, 2010.

Automatic segmentation and disentangling of chromosomes in Q-band prometaphase images.

2011-08-22T14:09:19Z

Karyotype analysis is a widespread procedure in cytogenetics to assess the possible presence of genetics defects. The procedure is lengthy and repetitive, so that an automatic analysis would greatly help the cytogeneticist routine work. Still, automatic segmentation and full disentangling of chromosomes are open issues. We propose an automatic procedure to obtain the separated chromosomes, which a...

Enrico Grisan, Enea Poletti, Alfredo Ruggeri (2009) IEEE Trans Inf Technol Biomed 13: 4 575-581

An Improved Segmentation of Chromosomes in Q-Band Prometaphase Images Using a Region Based Level Set

2011-08-22T14:11:16Z

Karyotype analysis is a widespread procedure in cytogenetics to assess the possible presence of genetics defects. The procedure is lengthy and repetitive, so that an automatic analysis would greatly help the cytogeneticist routine work. Still, automatic segmentation and full disentangling of chromosomes are open issues. The first step in every automatic procedure, is the segmentation of the chromo...

E Grisan, E Poletti, A Ruggeri (2009) World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany http://dx.doi.org/10.1007/978-3-642-03882-2_199 : 748-751

Retinal Vessel Axis Estimation through a Multi-Directional Graph Search Approach

2011-08-22T14:12:39Z

The analysis of blood vessels in images of retinal fundus is an important non-invasive procedure that allows early diagnosis and the effective monitoring of therapies in retinopathy. In order to derive a quantitative evaluation of the clinical features, such as vessel diameter and tortuosity, an accurate segmentation of the vessel network has to be performed. A new system for the automatic extract...

E Poletti, D Fiorin, E Grisan, A Ruggeri (2009) World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany http://dx.doi.org/10.1007/978-3-642-03891-4_37 : 137-140

Fast adaptive axis-based segmentation of retinal vessels through matched filters

2011-08-22T14:12:22Z

Ocular fundus images provide important information about retinal degeneration, which may be related to acute pathologies or to early signs of systemic diseases. An automatic and quantitative assessment of vessel morphological features, such as diameters and tortuosity, can improve clinical diagnosis and evaluation of retinopathy. We propose a new method to accurately evaluate vessel diameters and ...

D Fiorin, E Poletti, E Grisan, A Ruggeri (2009) World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany http://dx.doi.org/10.1007/978-3-642-03891-4_39 : 145-148

Automatic classification of chromosomes in Q-band images.

2011-08-22T14:09:58Z

The manual analysis of the karyogram is a complex, wearing and time-consuming operation. It requires a very meticulous attention to details and calls for well-trained personnel. Even though existing commercial software packages provide a reasonable support to cytogenetists, they very often require human intervention to correct challenging situations. We developed a robust automatic classification ...

Enea Poletti, Enrico Grisan, Alfredo Ruggeri (2008) Conf Proc IEEE Eng Med Biol Soc Conf Proc IEEE Eng Med Biol Soc 2008: 1911-1914

A framework for a fully automatic karyotyping system

2010-10-22T10:11:55Z

E Poletti, E Grisan, A Ruggeri (2008) 1st Annual National Conference of Bioengineering, Pisa, Italy, July 3-5, 2008.

Automatic segmentation of chromosomes in Q-band images.

2011-08-22T14:10:19Z

Karyotype analysis is a widespread procedure in cytogenetics to assess the possible presence of genetics defects. The procedure is lengthy and repetitive, so that an automatic analysis would greatly help the cytogeneticist routine work. Still, automatic segmentation and full disentangling of chromosomes are open issues. We propose an automatic procedure to obtain the separated chromosomes, which a...

Enrico Grisan, Enea Poletti, Christopher Tomelleri, Alfredo Ruggeri (2007) Conf Proc IEEE Eng Med Biol Soc Conf Proc IEEE Eng Med Biol Soc 2007: 5513-5516