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                <term xml:lang="fr"> distance de mise au point</term>
                <term xml:lang="fr"> netteté</term>
                <term xml:lang="fr"> flou</term>
                <term xml:lang="fr">cinéma stéréoscopique</term>
                <term xml:lang="fr"> depth from defocus</term>
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              <p>La production d'images stéréoscopiques nécessite un rig stéréoscopique avec deux caméras parfaitement synchronisées et alignées. La plupart des imprécisions de ce montage peuvent être corrigées en direct ou en post-production. Par contre, une différence de distance de mise au point ou de profondeur de champ entre les caméras produira des dégradations ir-récupérables dans les images. Dans cet article nous détectons des différences de mise au point entre les deux vues d'une paire stéréoscopique en quatre étapes. D'abord nous calculons une carte de disparité dense. Ensuite nous mesurons la netteté dans chaque image et nous com-parons ces mesures. Puis, avec des méthodes statistiques robustes, nous identifions les zones de l'image qui présentent des différences. Finalement, nous proposons une méthode de visua-lisation sur les images originales pour informer l'opérateur des problèmes, et lui donner des indices pour les résoudre.</p>
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