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Material appearance has emerged as a scientific topic in its own right rather recently and an increasing number of professionals concerned by this topic, belonging to various application areas, are entering this vast field. Thanks to the rise of imaging systems and visual rendering software, and the rapid development of accessible devices for color and gloss analysis, non-expert people can now check, for example, the compliance of a product with an appearance standard, or create a realistic virtual prototype. Most of these tools are based on optical concepts which are generally not in the forefront at an elementary level usage, but which are necessary for a consistent analysis of the specific cases studied. The objective of this book is precisely to introduce the fundamental notions of optics allowing the readers to understand the radiometric quantities measured with common devices, to learn how to analyze them, and to review some classical optics-based predictive models for various types of materials and structures. We have chosen to illustrate the theoretical notions with numerous examples and corrected exercises, easily transposable to a variety of materials: glass plates, polymer films, pigment layers, metals, papers and printed surfaces, coatings, etc. The book targets an audience of students, engineers and researchers who have a scientific background but not necessarily versed in optics, who are seeking sound bases in order to characterize the appearance of products and better comprehend the more advanced research currently being conducted in this area.

Optical images.

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This dissertation by Luigi Belcastro focuses on the development and application of Spatial Frequency Domain Imaging (SFDI) as a diagnostic tool for studying wound healing in biological tissues. The work explores the optical properties of tissues and introduces new methods to enhance the spectral information collected by SFDI. The research aims to overcome limitations of existing models by introducing a two-layer scattering model and developing an inverse solver algorithm for more accurate tissue analysis. The study is intended for researchers and clinicians in biomedical engineering, providing insights into advanced imaging techniques and regenerative therapies.

Wound healing. --- Optical images.

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Microscopy --- Nanotechnology --- Optical images --- Nanotechnology. --- Nanotechnology --- Microscopy --- Optical Imaging --- Microscopie --- Images optiques --- Nanotechnologie. --- Optical images. --- Microscopy. --- Nanotechnology. --- microscopie --- microscopy --- optische eigenschappen --- optical properties --- Biological Techniques --- Biologische technieken

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This book shows that screens don’t just distribute the visible and the invisible, but have always mediated our body's relationships with the physical and anthropological-cultural environment. By combining a series of historical-genealogical reconstructions going back to prehistoric times with the analysis of present and near-future technologies, the authors show that screens have always incorporated not only the hiding/showing functions but also the protecting/exposing ones, as the Covid-19 pandemic retaught us. The intertwining of these functions allows the authors to criticize the mainstream ideas of images as inseparable from screens, of words as opposed to images, and of what they call “Transparency 2.0” ideology, which currently dominates our socio-political life. Moreover, they show how wearable technologies don’t approximate us to a presumed disappearance of screens but seem to draw a circular pathway back to using our bodies as screens. This raises new relational, ethical, and political questions, which this book helps to illuminate.

Computer input-output equipment --- Human-computer interaction --- Optical images --- Philosophy, Modern --- Philosophy. --- Screens

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Optical images --- Miscellanea --- -#SBIB:309H520 --- #SBIB:309H529 --- Images, Optical --- Geometrical optics --- Physiological optics --- Visual perception --- Audiovisuele communicatie: algemene werken --- Audiovisuele communicatie: andere benaderingen --- #SBIB:309H520 --- Optical images - Miscellanea --- kunst en wetenschap