Interdisciplinary study of reflectance transformation imaging processes for the creation of normal map libraries from high-resolution scan data

2017 ◽  
Author(s):  
David Halbstein ◽  
Nitin Sampat ◽  
Martin Pietras
Keyword(s):  
High Resolution ◽  
Normal Map ◽  
The Creation ◽  
Scan Data ◽  
Interdisciplinary Study ◽  
Reflectance Transformation Imaging

Hands Stencils in El Castillo Cave (Puente Viesgo, Cantabria, Spain). An Interdisciplinary Study

2021 ◽  
pp. 1-21
Author(s):  
Sergio Ripoll ◽  
Vicente Bayarri ◽  
Francisco J. Muñoz ◽  
Ricardo Ortega ◽  
Elena Castillo ◽  
...  
Keyword(s):  
High Resolution ◽  
Real Data ◽  
Digital Processing ◽  
The Other ◽  
Major Step ◽  
The People ◽  
High Resolution Images ◽  
Real Picture ◽  
Interdisciplinary Study ◽  
Very High

Our Palaeolithic ancestors did not make good representations of themselves on the rocky surfaces of caves and barring certain exceptions – such as the case of La Marche (found on small slabs of stone or plaquettes) or the Cueva de Ambrosio – the few known examples can only be referred to as anthropomorphs. As such, only hand stencils give us a real picture of the people who came before us. Hand stencils and imprints provide us with a large amount of information that allows us to approach not only their physical appearance but also to infer less tangible details, such as the preferential use of one hand over the other (i.e., handedness). Both new and/or mature technologies as well as digital processing of images, computers with the ability to process very high resolution images, and a more extensive knowledge of the Palaeolithic figures all help us to analyse thoroughly the hands in El Castillo cave. The interdisciplinary study presented here contributes many novel developments based on real data, representing a major step forward in knowledge about our predecessors.

Direct imaging of direction-controlled molecular rotational wave packets created by a polarization-skewed double-pulse

2020 ◽  
Vol 22 (19) ◽  
pp. 10853-10862
Author(s):  
Kenta Mizuse ◽  
Naoya Sakamoto ◽  
Romu Fujimoto ◽  
Yasuhiro Ohshima
Keyword(s):  
High Resolution ◽  
Wave Packets ◽  
Double Pulse ◽  
Direct Imaging ◽  
Creation Process ◽  
Rotational Wave ◽  
The Creation

High-resolution molecular movies of direction-controlled rotational wave packets are reported, providing insights into the creation process and detailed dynamics of wave packets.

scholarly journals All Our Eggs In One Basket: Challenges of High Resolution X-Ray Micro-Computed Tomography of Great Auk Pinguinus impennis Eggshell

2018 ◽  
Vol 2 ◽  
pp. e25794
Author(s):  
Douglas Russell ◽  
Arianna Bernucci ◽  
Amy Scott-Murray ◽  
Duncan Jackson ◽  
Farah Ahmed ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Structured Light ◽  
3D Models ◽  
Breeding Ecology ◽  
Micro Computed Tomography ◽  
History Museum ◽  
X Ray ◽  
X Ray Imaging ◽  
Scan Data

High resolution X-ray micro-computed tomography gives the ability to research objects in unprecedented detail in 3D without damaging them but applying these new techniques to specimens can be complex. In 2017 the Natural History Museum (NHM), London embarked on a ground-breaking project with University of Sheffield to compare extinct Great Auk Pinguinus impennis eggshell microstructure to that of their extant relatives to gain new insight into their breeding ecology. NHM has a ZEISS Xradia 520 Versa X-ray microscope capable of submicron X-ray imaging in 3D but using it required supporting and moving complete eggshells within the confined, potentially harsh, mechanised environment of the microscope without risk. Ensuring the correct position and orientation of each egg to image nine distinct areas on the eggshell was also a challenge. Collaboration with colleagues in the NHM Conservation and Imaging & Analysis Centres developed a bespoke solution to hold and protect the eggs during scanning. All six NHM Great Auk eggshells and the inside of the microscope were surface scanned using a handheld structured light scanner. Scan data produced 3D models from which accurate 3D printed plastic replicas were made of the three Great Auk eggs prioritised for research. Each replica was used to mould a two-part, custom-built, case for each egg constructed from conservation grade epoxy putty and lined with polyethylene foam. This provided close-fitting, durable cases which could be used for the 6-month duration of the project. Each case enclosed its matching Great Auk egg entirely and had the advantage of being rock-hard, electrically insulating and water, heat and chemical resistant. A system of three, interchangeable, tailor-made mounting brackets were designed that married with the cases and held them safely and precisely inside the microscope at the correct angles and positions for imaging. The structured light scan of the inside of the microscope was used to model the necessary rotational movements of the cases and brackets inside the scanner, ensuring that all movements had sufficient clearance to avoid risk of impact. This system successfully protected the fragile c. 200 year old eggs throughout 70 scanning sessions. This provides a methodology for high resolution X-ray micro-computed tomography imaging of any similarly sized, fragile, object.

Beyond the Railway

2020 ◽  
pp. 215-244
Author(s):  
Nicholas J. Saunders
Keyword(s):  
Second World War ◽  
Guerrilla Warfare ◽  
World War ◽  
National Politics ◽  
Arab Nationalism ◽  
The First World War ◽  
The Creation ◽  
Interdisciplinary Study ◽  
Second World ◽  
First World

This concluding chapter provides a summary of the discoveries of the Great Arab Revolt Project (GARP) from the conflict landscape of the Hejaz Railway. A decade in the desert revealed the anthropological archaeology of the Arab Revolt of 1916–18 to be more than the excavation of historically recent places or the survey of ruinous station buildings. It was rather an interdisciplinary study of the railway’s heritage from 1900 to the present, its role as a catalyst in creating a unique conflict landscape, and its intriguing relationships with earlier Hajj routes. The railway was also entangled with the beginnings of modern guerrilla warfare, the creation of the Hashemite Kingdom of Jordan, and a complex and sometimes volatile mix of traditional Bedouin culture, modernity, religion, and local and national politics. Furthermore, the Revolt itself was embedded in the wider regional and geo-political framework of the First World War and its many aftermaths: the collapse of the Ottoman Empire; the creation of the modern Middle East; the rise of Arab Nationalism; the Second World War; the 2003 invasion and occupation of Iraq; the destructive legacy of the Islamic State’s short-lived Caliphate announced in 2014; and Syria’s descent into a tortuous and tragic civil war.

scholarly journals A Change-Driven Image Foveation Approach for Tracking Plant Phenology

2020 ◽  
Vol 12 (9) ◽  
pp. 1409
Author(s):  
Ewerton Silva ◽  
Ricardo da S. Torres ◽  
Bruna Alberton ◽  
Leonor Patricia C. Morellato ◽  
Thiago S. F. Silva
Keyword(s):  
Time Series ◽  
High Resolution ◽  
Image Sequences ◽  
Plant Phenology ◽  
Memory Storage ◽  
High Resolution Images ◽  
The Creation ◽  
Computational Resources ◽  
Space Variant

One of the challenges in remote phenology studies lies in how to efficiently manage large volumes of data obtained as long-term sequences of high-resolution images. A promising approach is known as image foveation, which is able to reduce the computational resources used (i.e., memory storage) in several applications. In this paper, we propose an image foveation approach towards plant phenology tracking where relevant changes within an image time series guide the creation of foveal models used to resample unseen images. By doing so, images are taken to a space-variant domain where regions vary in resolution according to their contextual relevance for the application. We performed our validation on a dataset of vegetation image sequences previously used in plant phenology studies.

Using High-Resolution Digital Scans in Multimedia Cartographic Applications

1994 ◽  
pp. 26-30
Author(s):  
David W. Tilton
Keyword(s):  
Native American ◽  
High Resolution ◽  
Research Project ◽  
Cd Rom ◽  
University Of Wisconsin ◽  
The Creation ◽  
Scanned Images ◽  
The University

Since June of 1993, the Geography Department at the University of Wisconsin-Milwaukee has been engaged in a research project to develop the Archive of Native American Maps on CD-ROM. A major component of this project involves the creation of high-resolution scans of the maps in the archive. This paper discusses several issues encountered in the acquisition, manipulation and display of these scanned images. The issues include scanning resolution, file compression, palette shifts, and image tiling.

scholarly journals Direct terrestrial–marine correlation demonstrates surprisingly late onset of the last interglacial in central Europe

2011 ◽  
Vol 75 (1) ◽  
pp. 213-218 ◽  
Author(s):  
Mark J. Sier ◽  
Wil Roebroeks ◽  
Corrie C. Bakels ◽  
Mark J. Dekkers ◽  
Enrico Brühl ◽  
...  
Keyword(s):  
High Resolution ◽  
Central Europe ◽  
Large Time ◽  
Sedimentary Basin ◽  
Late Onset ◽  
Time Lag ◽  
Last Interglacial ◽  
Interdisciplinary Study ◽  
Mis 5E

AbstractAn interdisciplinary study of a small sedimentary basin at Neumark Nord 2 (NN2), Germany, has yielded a high-resolution record of the palaeomagnetic Blake Event, which we are able to place at the early part of the last interglacial pollen sequence documented from the same section. We use this data to calculate the duration of this stratigraphically important event at 3400 ± 350 yr. More importantly, the Neumark Nord 2 data enables precise terrestrial–marine correlation for the Eemian stage in central Europe. This shows a remarkably large time lag of ca. 5000 yr between the MIS 5e ‘peak’ in the marine record and the start of the last interglacial in this region.

Transforming the Rocks – Time and Rock Art in Bohuslän, Sweden

2017 ◽  
Vol 21 (3) ◽  
pp. 361-384 ◽  
Author(s):  
Christian Horn ◽  
Rich Potter
Keyword(s):  
Rock Art ◽  
Body Parts ◽  
The Past ◽  
Southern Scandinavia ◽  
The Creation ◽  
Reflectance Transformation Imaging ◽  
Over Time ◽  
Individual Human

Human representations are one of the most important groups of depictions in rock art in southern Scandinavia. These humans have long been discussed as complete, stable, and temporally-fixed images. The results of a new survey challenge this view. Recording rock art with Reflectance Transformation Imaging (RTI) enabled us to discern a possible sequence of production of individual human representations, their bodily features, and associated objects. Figures from a rock art site in Finntorp (Tanum, Sweden) will be used as an example. Differences in the dimensions of the engraved lines, the chronology of the depicted objects, and the placement of body parts suggest that several individuals may have been involved in making human representations on the rocks, and that their appearance as complete figures is the result of repeated transformations. The results presented demonstrate that Scandinavian rock art is not stable in time. We suggest that rock art is best understood as the creation of communities over time, which enables them to engage with the past by transforming the rocks.

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