A reduced-reference perceptual image and video quality metric based on edge preservation

In image and video compression and transmission, it is important to rely on an objective image/video quality metric which accurately represents the subjective quality of processed images and video sequences. In some scenarios, it is also important to evaluate the quality of the received video sequence with minimal reference to the transmitted one. For instance, for quality improvement of video transmission through closed-loop optimisation, the video quality measure can be evaluated at the receiver and provided as feedback information to the system controller. The original image/video sequence-prior to compression and transmission-is not usually available at the receiver side, and it is important to rely at the receiver side on an objective video quality metric that does not need reference or needs minimal reference to the original video sequence. The observation that the human eye is very sensitive to edge and contour information of an image underpins the proposal of our reduced reference (RR) quality metric, which compares edge information between the distorted and the original image. Results highlight that the metric correlates well with subjective observations, also in comparison with commonly used full-reference metrics and with a state-of-the-art RR metric. © 2012 Martini et al

Bohdan Boichuk’s Childhood Reveries: A Migrant’s Nostalgia, or, Documenting Pain in Poetry

This paper examines Bohdan Boichuk’s poetry by looking into the role his childhood memories played in forming his poetic imagination. Displaced by World War II, the poet displays a unique capacity to transcend his traumatic experiences by engaging in creative writing. Eyewitnessing war atrocities perpetrated by the Nazis does not destroy his belief in the healing power of poetry; on the contrary, it makes him appreciate poetry as the only existentially worthy enterprise. Invoking Gaston Bachelard’s classic work The Poetics of Reveries: Childhood, Language, and the Cosmos, I argue that Boichuk’s vivid childhood memories, however painful they might be, helped him poetically recreate and reimagine fateful moments of his migrant life

Alfredo Deaño and the non-accidental transition of thought

If the cultural variations concerning knowledge and research on ordinary reasoning are part of cultural history, what kind of historiographical method is needed in order to present the history of its evolution? This paper proposes to introduce the study of theories of reasoning into a historiographic perspective because we assume that the answer to the previous question does not only depend of internal controversies about how reasoning performance is explained by current theories of reasoning. [...

Studies by Maria G. Sotiriou

Μη διαθέσιμη περίληψηno abstrac

Bacteria 4

Analysis of the bacterial community of the insect pest Lymantria dispar during its life cycle Zane Metla, Monika Maurhofer, Liga Jankevica Contacting microbe induce grooming behaviour in Drosophila Aya Yanagawa, Tsuyoshi Yoshimura, Hata Toshimitsu and Frédéric Marion-PollCultivable gut bacteria of scarabs inhibit B. thuringiensis multiplication Yueming Shan, Changlong Shu, Neil Crickmore, Chunqin Liu, Wensheng Xiang, Fuping Song, Jie Zhang Interactions between the Med fly Ceratitis capitata (Wied.)and a new Bacillus cereus sensu lato strain Luca Ruiu, Giovanni Falchi, Ignazio Floris, Maria G. Marche, Maria E. Mura, Alberto Satta Long-term effect of Bacillus thuringiensis subsp. israelensis application on B. cereus group populations in Swedish riparian wetland soils Salome Schneider, Tania Tajrin, Niels B. Hendriksen, Jan O. Lundström, Petter Melin, Ingvar SundhProteomics of Brevibacillus laterosporus and its insecticidal action against noxious Diptera Maria G. Marche, Maria E. Mura, Giovanni Falchi, Luca RuiuOuter membrane vesicles are vehicles for the delivery of Vibrio virulence factors to oyster immune cells Audrey S. Vanhove, Marylise Duperthuy, Guillaume M. Charrière, Frédérique Le Roux, David Goudenège, Benjamin Gourbal, Sylvie Kieffer-Jaquinod, Yohann Couté, Sun N. Wai and Delphine Destoumieux-Garzó