Channelized model observer for the detection and estimation of signals with unknown amplitude, orientation, and size.

Abstract : As a task-based approach for medical image quality assessment, model observers (MOs) have been proposed as surrogates for human observers. While most MOs treat only signal-known-exactly tasks, there are few studies on signal-known-statistically (SKS) MOs, which are clinically more relevant. In this paper, we present a new SKS MO named channelized joint detection and estimation observer (CJO), capable of detecting and estimating signals with unknown amplitude, orientation, and size. We evaluate its estimation and detection performance using both synthesized (correlated Gaussian) backgrounds and real clinical (magnetic resonance) backgrounds. The results suggest that the CJO has good performance in the SKS detection-estimation task.
Type de document :
Article dans une revue
Journal of the Optical Society of America A, Optical Society of America, 2013, 30 (11), pp.2422-32. 〈10.1364/JOSAA.30.002422〉
Liste complète des métadonnées

Littérature citée [34 références]  Voir  Masquer  Télécharger

http://www.hal.inserm.fr/inserm-00954609
Contributeur : Di Ge <>
Soumis le : lundi 3 mars 2014 - 12:08:56
Dernière modification le : mardi 20 février 2018 - 10:10:03
Document(s) archivé(s) le : mardi 3 juin 2014 - 10:46:32

Fichier

JOSAA_final.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Citation

Lu Zhang, Bart Goossens, Christine Cavaro-Ménard, Patrick Le Callet, Di Ge. Channelized model observer for the detection and estimation of signals with unknown amplitude, orientation, and size.. Journal of the Optical Society of America A, Optical Society of America, 2013, 30 (11), pp.2422-32. 〈10.1364/JOSAA.30.002422〉. 〈inserm-00954609〉

Partager

Métriques

Consultations de la notice

570

Téléchargements de fichiers

360