27 papers · ranked by Valyu relevance
David H. Brainard, Nicolas P. Cottaris, Ana Radonjić
Perceived object color and material properties help us to select and interact with objects. Because there is no simple mapping between the pattern of an object’s image on the retina and its physical reflectance, our perception of color and material are made more useful through sophisticated visual computations. A…
Sawayama Masataka
This perspective on efficient color processing is based on three key findings from material perception studies. The first finding is that color and luminance are highly redundant in certain materials, particularly in wet or translucent objects with subsurface scattering . For example, there is a strong negative…
Yohan Lee, Jens Herbig, Serkan Arslan, Dominik Ludescher + 4 more
'Monika Ubl' 'Andreas Georg' 'Mario Hentschel' 'Harald Gießen'] Colour printing based on metallic or dielectric nanostructures has revolutionized colour science due to its unprecedented subwavelength resolution. Evidently, the evolution towards the active control of such structural colours with smart materials is in…
Alexis J. Breen, Clémence C. Bonneaud, Susan D. Healy, Lauren M. Guillette
'Lauren M. Guillette'] One source of public information may be the enduring products of others’ behaviour, such as discarded tools or vacated nests. Here, we examined whether observation of a nest affects the material captive zebra finch males prefer when they construct their first nest. It does: for first-time nest…
Kevin Maik Jablonka, Seyed Mohamad Moosavi, Mehrdad Asgari, Christopher Ireland + 2 more
'Christopher Ireland' 'Luc Patiny' 'Berend Smit'] Colour is at the core of chemistry and has been fascinating humans since ancient times. It is also a key descriptor of optoelectronic properties of materials and is often used to assess the success of a synthesis. However, predicting the colour of a material based on…
Hadee Mohammed Najm, Ominda Nanayakkara, Mahmood Ahmad, Mohanad Muayad Sabri Sabri + 1 more
'Mohanad Muayad Sabri Sabri' 'Dario De Domenico'] Construction and demolition (C&D) waste was considered as zero value materials and, as a result, most C&D waste materials ended up in landfills, eventually constituting environmental issues. Therefore, it is important to explore the potential of such C&D waste materials…
Md Abdullah Al Faruque, Alper Kiziltas, Deborah Mielewski, Maryam Naebe + 1 more
'Maryam Naebe' 'Ana Maria de Matos Charas'] This research investigated a feasible approach to fabricating electrically conductive knitted fabrics using previously wet-spun wool/polyacrylonitrile (PAN) composite fibre. In the production of the composite fibre, waste wool fibres and PAN were used, whereby both the…
Celina Jones, Franz J. Wortmann, Helen F. Gleeson, Stephen G. Yeates
The concept of mimicking structural colour in nature as an alternative to traditional textile coloration techniques would reduce dependency on dyes, pigments and vast quantities of water in the textile supply chain. Structural colours originate from the physical interaction of light with nanoscale structures. This is…
Tianqi Sai, Luis S. Froufe‐Pérez, Frank Scheffold, Bodo D. Wilts + 1 more
'Eric R. Dufresne'] Color can originate from wavelength-dependence in the absorption of pigments or the scattering of nanostructures. While synthetic colors are dominated by the former, vivid structural colors found in nature have inspired much research on the latter. However, many of the most vibrant colors in nature…
Frank Neubrech, Xiaoyang Duan, Na Liu
Displays are an indispensable medium to visually convey information in our daily life. Although conventional dye-based color displays have been rigorously advanced by world leading companies, critical issues still remain. For instance, color-fading and wavelength-limited resolution restrict further developments.…
Dominic Gardner, Matthew James, Sophie Wright, Jacob Williams + 6 more
Manganese doped chlorapatite compounds have attracted interest as inorganic pigments due to their vivid colours. In this paper, we investigate the effect of Sr incorporation in the turquoise pigment Ba10(MnO4)(PO4)5Cl2. on the structure and optical properties. The results show a turquoise colour throughout the series…
Ida Juliane Bundgaard, Catarina G. Ferreira, Yonas Lebsir, Christos Tserkezis
We introduce transition metal-dichalcogenide (TMD) nanostructures as a promising platform for the realisation of structural colours. Processing of semianalytically calculated reflectance spectra of TMD nanosphere arrays shows a wide range of colours, which are obtained simply through tailoring the radius and separation…
Takuma Morimoto, Robert J. Lee, Hannah E. Smithson
Colour constancy supports stable object-colour perception across changes in illumination. Illuminant colour can be inferred from white surfaces or specular highlights, and many models adopt a “brightest is white” heuristic to identify illuminant colour. We tested an alternative: observers use structured changes in the…
Henning Galinski, Gaël Favraud, Hao Dong, Juan Sebastian Totero Gongora + 5 more
'Juan Sebastian Totero Gongora' 'Grégory Favaro' 'M. Döbeli' 'Ralph Spolenak' 'Andrea Fratalocchi' 'Federico Capasso'] > 1Harvard School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street ,Cambridge, USA 2Laboratory for Nanometallurgy, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zurich, Switzerland…
Md Tanvir Emrose, Katherine Winchester, Yin Huang, Georgios Veronis
We introduce multilayer structures based on phase-change materials for reconfigurable structural color generation. These structures can produce multiple distinct colors within a single pixel. Specifically, we design structures that generate either two or four maximally distinct structural colors. We employ a memetic…
Alexandra C. Schmid, Pascal Barla, Katja Doerschner
There is a growing body of work investigating the visual perception of material properties like gloss, yet practically nothing is known about how the brain recognises different material classes like plastic, pearl, satin, and steel, nor the precise relationship between material properties like gloss and perceived…
Renilkumar Mudachathi, Takuo Tanaka
It has long been the interests of scientists to develop ink free colour printing technique using nano structured materials inspired by brilliant colours found in many creatures like butterflies and peacocks. Recently isolated metal nano structures exhibiting preferential light absorption and scattering have been…
Ashley L. Dey
Most 5-nitrofuranyl derivatives, in particular, the frequently used 5-nitrofurfural building block in synthesis, are coloured compounds and their intrinsic colours can be a good indication of their purity by virtue of their specific extended π-delocalisation. To this end, the work herein reports a first-of-its-kind…
Alexander D. Logvinenko, Brian Funt, Hamidreza Mirzaei, Rumi Tokunaga + 1 more
Colour constancy needs to be reconsidered in light of the limits imposed by metamer mismatching. Metamer mismatching refers to the fact that two objects reflecting metameric light under one illumination may reflect non-metameric light under a second; so two objects appearing as having the same colour under one…
Hyeon Ho Kim, Eunji Im, Seungwoo Lee
Radiative cooling has proven to be a powerful strategy for sustainable thermal management. Nanophotonic structures enabling broadband reflection lead to minimization of sunlight absorption, which has brought nighttime-limited radiative cooling into daytime applications. However, this broadband reflection strategy in…
Marzia Carrada, Mohamed Haddad, Luis M. San-Jose, Gonzague Agez + 3 more
'Jean-Marie Poumirol' 'Alexandra Magro' 'S Ezhil Vendan'] This study investigates the mechanisms underlying colour production in the family Coccinellidae, focusing on two model species: Adalia bipunctata (L.) and Calvia quatuordecimguttata (L.). In this family, colours have traditionally been attributed primarily to…
Lisa P.Y. Lin, Knut Drewing, Katja Doerschner
Image motion contributes to the perception of visual material properties, and motion signals are generated during active exploration. However, little is known about how specific perceptual tasks influence the actions that generate these cues. In an experiment using virtual reality and real-time hand tracking, we…
Authors not listed
The study of artwork is an interesting field that has undergone a major turn the last decades as new scientific analysis methods have been introduced and is becoming a significant part of the investigations. In this study we have employed Raman spectroscopy to analyse the pigments in an old painting of the Roman…
Authors not listed
Multi-material 3D printing concerns the use of two or more 3D printable materials within a single printed part. The result is a composite that benefits from the combined properties of the individual 3D printed materials. Typically, a distinct differentiation between material properties can only be achieved using…
Neil Champness, Joseph Ogar, Stephen Davies, Asia Almuhana + 3 more
The electrochromic behaviour of metal-organic frameworks (MOFs) using a perylene diimide (PDI) based ligand is reported. Through suitable functionalisation, a PDI-based ligand is made soluble, allowing successful synthesis of two MOFs in combination with cobalt dicarboxylate paddlewheel secondary building units.…
Nathan Katlein, Miranda Ray, Anna Wilkinson, Julien Claude + 4 more
Animals are exposed to different visual stimuli that influence how they perceive and interact with their environment. Visual information such as shape and colour can help the animal detect, discriminate and make appropriate behavioural decisions for mate selection, communication, camouflage, and foraging. In all major…
Nicholas J. Roberts, Toren Hynes, Devon Stacey, Jennifer L. MacDonald
Coloured indicators, whether solution or paper based, are often used in laboratory courses and academic/industrial research as a qualitative method to test important experimental markers. While useful, these tools present challenges to those with colour vision deficiency (CVD), who are unable to interpret the same…