Search results for " Images"

ICDAR 2021 Competition on Historical Document Classification

2021

International audience; This competition investigated the performance of historical document classification. The analysis of historical documents is a difficult challenge commonly solved by trained humanists. We provided three different classification tasks, which can be solved individually or jointly: font group/script type, location, date. The document images are provided by several institutions and are taken from handwritten and printed books as well as from charters. In contrast to previous competitions, all participants relied upon Deep Learning based approaches. Nevertheless, we saw a great performance variety of the different submitted systems. The easiest task seemed to be font grou…

Images of the imagined city

2018

The essay investigates one of the projects in the competition for the expansion of the North area of Palermo named ZEN 2 and designed by the architects Pasquale Culotta, Giuseppe Laudicina, Teresa Cannarozzo, Anna Maria Fundarò and Tilde Marra, in 1970. The essay aims at illustrating the spatial, figurative and urban qualities of it. The analysis of the project has been guided by a written text and the graphic support, that is the project report and the attached drawings, in Indian Ink, made by the architects themselves, indeed very often fragmented and difficult to be interpreted. In this regard, the support of digital drawing in two-dimensional and three-dimensional form, based on the cre…

HEp-2 Cell Classification with heterogeneous classes-processes based on K-Nearest Neighbours

2014

We present a scheme for the feature extraction and classification of the fluorescence staining patterns of HEp-2 cells in IIF images. We propose a set of complementary processes specific to each class of patterns to search. Our set of processes consists of preprocessing,features extraction and classification. The choice of methods, features and parameters was performed automatically, using the Mean Class Accuracy (MCA) as a figure of merit. We extract a large number (108) of features able to fully characterize the staining pattern of HEp-2 cells. We propose a classification approach based on two steps: the first step follows the one-against-all(OAA) scheme, while the second step follows the…

Icono(bio)logia dei simulacri

2014

Investigating mathematics teacher identity development: A theoretical consideration

2015

International audience; The paper discusses a theoretical framework for investigating the process of becoming a mathematics teacher, based on the need to better understand how mathematics and teaching combine in developing mathematics teacher identities. Identity is understood as a function of participation in and at the boundaries of various communities of practice, during university teacher education and at school. In order to reveal possible relationships between developing teacher identities and the discipline of mathematics, teachers' changing concept images of mathematics are embedded within the definition of identity.

Ghost Detection and Removal for High Dynamic Range Images: Recent Advances

2012

23 pages; International audience; High dynamic range (HDR) image generation and display technologies are becoming increasingly popular in various applications. A standard and commonly used approach to obtain an HDR image is the multiple exposures fusion technique which consists of combining multiple images of the same scene with varying exposure times. However, if the scene is not static during the sequence acquisition, moving objects manifest themselves as ghosting artefacts in the final HDR image. Detecting and removing ghosting artefacts is an important issue for automatically generating HDR images of dynamic scenes. The aim of this paper is to provide an up-to-date review of the recentl…

Immagini devote del popolo indiano

2008

This volume, with the preface by Giovanni Filoramo, collects some of the sacred images of "Hinduism" of other religions born in India (Shikism, Buddhism), exhibited during the exhibition of the same name at the Antonio Pasqualino International Puppet Museum from November 22 to December 31. 2007. These cult images are venerated in temples, in private homes and on the streets throughout India. The central idea was to show the iconographic path that these paintings (or photographs) have had in the popular imagination. An informative caption corresponds to each "portrait".

Retinal Fundus Multi-Disease Image Dataset (RFMiD): A Dataset for Multi-Disease Detection Research

2021

The world faces difficulties in terms of eye care, including treatment, quality of prevention, vision rehabilitation services, and scarcity of trained eye care experts. Early detection and diagnosis of ocular pathologies would enable forestall of visual impairment. One challenge that limits the adoption of computer-aided diagnosis tool by ophthalmologists is the number of sight-threatening rare pathologies, such as central retinal artery occlusion or anterior ischemic optic neuropathy, and others are usually ignored. In the past two decades, many publicly available datasets of color fundus images have been collected with a primary focus on diabetic retinopathy, glaucoma, age-related macular…

A text based indexing system for mammographic image retrieval and classification

2014

Abstract In modern medical systems huge amount of text, words, images and videos are produced and stored in ad hoc databases. Medical community needs to extract precise information from that large amount of data. Currently ICT approaches do not provide a methodology for content-based medical images retrieval and classification. On the other hand, from the Internet of Things (IoT) perspective, the ICT medical data can be produced by several devices. Produced data complies with all Big Data features and constraints. The IoT guidelines put at the center of the system a new smart software to manage and transform Big Data in a new understanding form. This paper describes a text based indexing sy…

Post-fotografia etnografica

2021

È evidente come la nostra società tecnologica sia legata senza alcun dubbio alla diffusione delle immagini. Autori come Gottfried Boehm, John Mitchell, Hans Belting hanno indagato la natura dell'immagine ponendo le basi, negli anni Novanta, per l'idea di un pictorial turn, di una cultura totalmente dominata dalle immagini che è diventata adesso una possibilità tecnica reale su scala globale. Un nuovo statuto dell'immagine che si usa raccogliere sotto l'etichetta di iconic turner inserito nel più vasto campo visual culture studies. L'uso del termine cultura accanto a quello di visuale è indicativo dell'ampiezza del campo d'indagine che visual culture studies si prefiggono di ricercare: essi …