Examples¶
Bruegel drawing¶
Luxuria (drawing): The sin of lust by Pieter BruegelDetail on original graphic work drawn by Pieter Bruegel the Elder in 1557 (© FINGERPRINT project KBR & KU Leuven: SII132816, Luxuria)
What
Animated gif: The RGB rendering represents the drawing as it appears to the human eye (based on albedo values). With the shaded rendering the topography of the surface can be studied. In this case, it visualizes the tracing lines (very shallow indentations in the paper) made by a stylus used by the engraver to transfer Bruegel’s design from the paper version onto the copper plates to produce prints. No other visualization technique documents this feature with the same success rate. For more results with this dataset see [Archiving2018].
Type dataset
Multispectral single-camera multi-light acquisition dome (MS Microdome, PLD system), capture by Hendrik Hameeuw.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res SCML || Legacy format: Multi Spectral ZUN
Antique coin¶
Face side of a Siculo-Punique tetradrachm coin, 330-253 BCE (© CAPP & IAP: Greater Mesopotamia projects KBR, Art and History Museum: 2A112_32)
What
Static compilation: Three manners in which the interactive data can be generated are fading into each other. These visualisations make it possible to study the surface and/or automatically simplify the relief. Left: Standard RGB rendering, as it appears to the human eye (based on the albedo values); Middle: Automated drawing or sketch1 rendering, the steep variations in the surface are accentuated in shades of grey; Right: Normal mapping, the color variations conceal information on the surface orientations.
Type dataset
White light single-camera multi-light acquisition dome (WL mecano Minidome, PLD system), capture by Vanessa Boschloos.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res, white light SCML || Legacy formats: White light ZUN | HSH RTI
Note: these three datasets have all been processed with one and the same original (see Type dataset) set of captured images.
Cuneiform tablet¶
Reverse of Ur III period (21st c. BCE) cuneiform tablet with written characters and a seal impression (© IAP: Greater Mesopotamia project Art and History Museum: O.0181)
What
Animated gif: The interactive relighting of the RGB rendering of the surface of a cuneiform tablet virtually simulates the interaction how light casts on the relief when a reader of the document identifies the scribal characters and the seal impression’s iconography. Secondly, by excluding the RGB texture map (‘shaded’ rendering) the relief during virtual relighting appears even more profound. A third added value of single-camera multi-light reflectance is the ability to automatically accentuate particular relief features. In this case, the ‘sketch1’ rendering makes the cuneiform signs impressed downwards in the clay to appear in black; and the ‘sketch2’ rendering differentiates the seal impression which protrudes on top of the main surface. For more results with this type of datasets see [VAST2005] and [Akkadica2011].
Type dataset
White light single-camera multi-light acquisition dome (WL mecano Minidome, PLD system), capture by Hendrik Hameeuw.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res, white light SCML || Legacy format: White light ZUN
Bible of Anjou¶
Large section on folio 3 verso of the Bible of Anjou, ca. 1340 (© RICH project KU Leuven: Ms. 1)
What
Static compilation: To the left the RGB rendering (based on the obtained albedo values) represents the drawing as it appears to the human eye; to the right the shaded rendering reveals the smallest unevennesses on the topography of the surface. For more results with these datasets see [AppliedPhysicsA2016] and [Archiving2018].
Type dataset
White light and Multispectral single-camera multi-light acquisition dome (WL Microdome & MS Microdome, PLD system), capture by Bruno Vandermeulen.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res, white light SCML | Multi-tiled, high res, multi spectral SCML || Legacy formats: White Light ZUN | Multi Spectral ZUN
Persian relief¶
Detail on a stone relief depicting a Mede ascending a staircase (5th-4th c. BCE) (© IAP: Greater Mesopotamia project Art and History Museum: IR.1034)
What
Animated gif: The RGB, specular enhancement and the normal map rendering blend into eachother. It visualizes a number of different aspects of the stone surface.
Type dataset
Highlight RTI-HSH (RTI builder), capture by Hendrik Hameeuw.
Open in web viewer
Rijmbijbel illumination¶
Detail of illumination on folio 106 verso of Rijmbijbel of Jacob van Maerlant (ca. 1225-1291) (© KBR: MS15001)
What
Static images: By comparing the RGB rendering to the left (how the object appears to the human eye) with the rendering based on the reflections from the 850nm infrared light sources (in the middle), it can be observed that the faces of the figures in the illumination have been repainted at a certain moment in time. The false color rendering (to the right, combination of the infrared, red and green albedo responses: IRG) shows evidence different materials were used for this restoration when these additives are compared to the original pigments and inks. For more results with the Rijmbijbel datasets see [Microchemical2020].
Type dataset
Multispectral single-camera multi-light acquisition dome (MS Microdome, PLD system), capture by Bruno Vandermeulen.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res, multi spectral SCML || Legacy format: Multi Spectral ZUN
Egyptian coffin¶
Detail on the Egyptian coffin (outer box) of Butehamun (10th-9th c. BCE) depicting Bes and the ‘solar cat’ (© EES project Art and History Museum: E.5288)
What
Static compilation: Combination of renderings presenting the abilities of multispectral multi-light reflectance datasets. The surface integrity of this polychromic coffin is greatly affected/damaged and layers of original deteriorated varnish obscure the original design of the depictions. The RGB color renderings are on the left alternated with a texture less ‘shaded’ rendering which reveals the current surface condition of the paint and underlying gypsum layers. More to the right, an infrared rendering (based on the spectral albedo values obtained in the IR, 850nm) provides better insights on the polychromic depictions.
Type dataset
Multispectral single-camera multi-light acquisition dome (MS Microdome, PLD system), capture by Athena Van der Perre, Luc Delvaux, Hendrik Hameeuw.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res, multi spectral SCML || Legacy format: Multi Spectral ZUN
Charles V seal¶
Detail on face side of the seal of Emperor Charles V, 1519-1556 (© RICH project KU Leuven Archives).
What
Static compilation: The relief (surface orientations based on the normal map) of the seal can be accentuated or simplified into a an automated white/black rendering; rapid changes in the surface orientations between pixels receive a dark shade of grey; white for neighboring pixels without difference in surface orientation (= sketch 1 rendering).
Type dataset
White light single-camera multi-light acquisition dome (WL mecano Minidome, PLD system), capture by Bruno Vandermeulen.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res, white light SCML || Legacy formats: White Light ZUN | HSH RTI | PTM
Note: these four datasets have all been processed with one and the same original (see Type dataset) set of captured images.
Japanese Print¶
Japanese print on paper (© RICH project KU Leuven Libraries collections)
What
Static compilation: By switching between the RGB textured and the shaded un-textured rendering the shallow variations in the paper, print marks and the thin pigment layers become very profound.
Type dataset
White light single-camera multi-light acquisition dome (WL mecano Minidome, PLD system), capture by Bruno Vandermeulen.
Open in web viewer
Novel, web optimized format: Multi-tiled, high res, white light SCML || Legacy formats: White Light ZUN | HSH RTI
Note: these three datasets have all been processed with one and the same original (see Type dataset) set of captured images.
Footnotes