Section: New Results

Software

IKONA/MAESTRO software

Participants : Vera Bakić, Jean-Paul Chièze, Raffi Enficiaud, Alexis Joly, Laurent Joyeux, Pierre Letessier, Olfa Mzoughi, Wajih Ouertani, Ahmed Rebai, Souheil Selmi.

This year, IKONA has been extended in the context of Pl@ntNet, Glocal, I-SEARCH and R2I projects. For the Pl@ntNet project, along the continuing improvements in the MAESTRO software, a number of new features were added. Namely the support for the automatic image segmentation and subsequent use of segmented regions; descriptors with the various shape's geometric parameters; use of multiple orientations for Harris points; run-time additions to the external database and immediate availability of the new images for the search; descriptors to facilitate external data usage; colour SIFT and Affine Covariance descriptors; integration of the thesis work of Ahmed Rebai for objects retrieval; and tools for statistical tests.

In addition, a number of new web services were developed and deployed: the dynamic indexation system of the on-line pad (“carnet-en-ligne” of Tela Botanica)images; the search with multiple views; the update of Pl@ntNet internal demonstration allowing to present features such as visual similarity search, textual search, filtering (pre- and post-filtering), and different methods of research; the implementation of the organ prediction web service and other web services of botanical information statistics; the administration of the indexation system and the experimentation of new research methods (GPS spatial and temporal search).

For the Glocal project, an interface was developed for the demonstrations of a search engine in large scale events database (the queries are event images and the result is a list of the closest events in terms of time alignment and image content), and new web services were developed and updated according to the data exchange format and the middle-ware of the project - among others: fraud detection, import media from the web, associate media with existing event in the repository, and event matching web services. The queries are composed of either a medium link (an external image) or an event link (set of external images).

For the I-SEARCH project, an integration was performed to provide global and local 2D image low level descriptors. For videos, an automated extraction of visual words tool was integrated to show to users image patches which are the most meaningful.

For the R2I project, a detailed technical documentation of the procedure of maestro's installation, web services and tomcat server were provided to Exalead partner.