Digital restoration of colour cinematic films using imaging spectroscopy and machine learning

Digital restoration is a rapidly growing methodology within the field of heritage conservation, especially for early cinematic films which have intrinsically unstable dye colourants that suffer from irreversible colour fading. Although numerous techniques to restore film digitally have emerged recently, complex degradation remains a challenging problem. This paper proposes a novel vector quantization (VQ) algorithm for restoring movie frames based on the acquisition of spectroscopic data with a custom-made push-broom VNIR hyperspectral camera (380–780 nm). The VQ algorithm utilizes what we call a multi-codebook that correlates degraded areas with corresponding non-degraded ones selected from reference frames. The spectral-codebook was compared with a professional commercially available film restoration software (DaVinci Resolve 17) tested both on RGB and on hyperspectral providing better results in terms of colour reconstruction

Aiding the conservation of two wooden Buddhist sculptures with 3D imaging and spectroscopic techniques

The conservation of Buddhist sculptures that were transferred to Europe at some point during their lifetime raises numerous questions: while these objects historically served a religious, devotional purpose, many of them currently belong to museums or private collections, where they are detached from their original context and often adapted to western taste. A scientific study was carried out to address questions from Museo d'Arte Orientale of Turin curators in terms of whether these artifacts might be forgeries or replicas, and how they may have transformed over time. Several analytical techniques were used for materials identification and to study the production technique, ultimately aiming to discriminate the original materials from those added within later interventions

Unravelling revelation : the apocalypse in England, 1700-1834

This thesis argues that, while the Revelation of John claims to unveil reality, the interpretative structures built on the book are undermined by its own rhetoric. A historical examination of its use shows the fragility of hermeneutics, but also the power of the 'apocalyptic tone' to engender new unveilings. The first chapter presents the Apocalypse as a book constantly inviting but constantly confounding interpretation, refusing to fit conventional generic definitions or reading strategies. The next two chapters show the book's continuing prominence in eighteenth-century England after its pivotal role in the Reformation. First - writers such as Isaac Newton and William Whiston - it serves as rationalistic evidence for God's providence, as well as giving encouragement to moral 'usefulness' and to the reformation of Christianity. Secondly, its imagery reinforces the more individualistic appeal of the Wesley's preaching and hymns. But it is only with the French Revolution (treated in Chapter 4) that the Apocalypse recovers political immediacy, as seen in both radical millenarian writers like Priestley and Bicheno and in conservative ones like Burke and G.S. Faber. The Romantic period also saw a revival of prophetic and visionary writing, and for many poets John of Patmos was a guiding spirit. Coleridge, the subject of Chapter 5, moved from the millenarian declamation of 'Religious Musings' and the fragmented vision of 'Kubla Khan' to an attempt to interpret the Apocalypse as symbolic representation of polar logic and moral order

Premodern Experience of the Natural World in Translation

This innovative collection showcases the importance of the relationship between translation and experience in premodern science, bringing together an interdisciplinary group of scholars to offer a nuanced understanding of knowledge transfer across premodern time and space. The volume considers experience as a tool and object of science in the premodern world, using this idea as a jumping-off point from which to view translation as a process of interaction between diff erent epistemic domains. The book is structured around four dimensions of translation—between terms within and across languages; across sciences and scientific norms; between verbal and visual systems; and through the expertise of practitioners and translators—which raise key questions on what constituted experience of the natural world in the premodern area and the impact of translation processes and agents in shaping experience. Providing a wide-ranging global account of historical studies on the travel and translation of experience in the premodern world, this book will be of interest to scholars in history, the history of translation, and the history and philosophy of science

Exploring Written Artefacts

This collection, presented to Michael Friedrich in honour of his academic career at of the Centre for the Study of Manuscript Cultures, traces key concepts that scholars associated with the Centre have developed and refined for the systematic study of manuscript cultures. At the same time, the contributions showcase the possibilities of expanding the traditional subject of ‘manuscripts’ to the larger perspective of ‘written artefacts’