Category Archives: News

Sharpness down to the last fiber – digitizing herbaria with the new focus stacking tool

What we are familiar with on a small scale at home, when we have collected, dried and pressed leaves in the fall, also exists in science − albeit on a completely different level and with considerably more effort: In herbaria, plants or parts of plants are collected, the respective name is added, as well as the collector and the place of discovery.  One of the purposes of such a collection is to compare the archived plant with others that are still growing. Herbaria play a particularly important role in botany, but other sciences, such as archaeology, can also benefit from them. Last but not least, such a collection also offers everyone who is interested exciting insights and orientation in the world of flora. Whether science or “just” amateur interest – when an herbarium is digitized, a large audience gains access to a huge database with detailed illustrations and associated information at the same time and without significant effort.

Impressive technology for the highest demands

One such digitization project is currently underway at the Thuringian University and State Library Jena (ThULB). The huge holdings (approx. 4 million plant specimens) of the Haussknecht Herbarium (JE) (https://www.thulb.uni-jena.de/thulb/standorte/herbarium-haussknecht) are being digitized here. The collection was named after the pharmacist and botanist Carl Haussknecht (1838-1903), who laid the foundation in 1896.

In addition to the collection of dried plants and other plant specimens, the Haussknecht herbarium (JE) also includes an important specialist botanical library and an archive on the history of botany. The digitized plant specimens are made available to the public via the virtual herbarium (https://www.herbarium.uni-jena.de/32/virtuelles-herbarium).

Thanks to generous funding from the Thuringian Ministry of Education, Science and Culture, the ThULB, together with the Senckenberg Institute for Plant Form and Function Jena (SIP), was able to purchase our high-performance scanner book2net Archive Pro A2+ to expand the digitization possibilities especially for herbarium specimens.

The book2net Archive Pro has been equipped with our M150 camera, which now also uses the new “Focus Stacking Tool” for the first time. This is an ingenious method for capturing every area of the objects to be digitized in detail and with absolute sharpness.

For a true-to-scale, brilliant image in high resolution, which also guarantees a constant depth of field across the entire area being captured, an even surface level is the ideal prerequisite. However, plants or parts of them, such as flowers, do not have flat surfaces, but three-dimensional structures. As it is unthinkable to “flatten” such precious unique specimens using a glass plate, focus stacking, also known as focal plane merging or focus blending, is used in this case to create images with exceptional depth of field.

The new focus stacking tool

Focus stacking is a method of maximizing the depth of field of an image.

Several images of an object are taken within a very short time, whereby the focus point is shifted slightly with each image. In this way, a new, very small area is precisely captured step by step for each image. These images are then stacked using the software, i.e. combined in such a way that only the sharp areas of each photo are integrated into the final image. The end result is a consistently sharp image with maximum detail.

We offer two methods for this: firstly, changing the focal plane by moving the camera to a new position on the camera slider, whereby the secure fixing on the slider also prevents any shifts or distortions, and secondly by controlling the lens and the focus setting via a motorized focus. In both cases, the process can be precisely programmed using presetting in our scanning software. The result is a razor-sharp image of incredible detail, which can provide scientists with new information for analysis and comparisons and is a real eye-catcher for aficionados.

However, focus Stacking is not only the ideal solution for the digitization of herbaria but is also suitable for all collections whose objects have three-dimensional structures and whose details are to be examined more closely: whether insects, coins, pottery fragments, textile fragments, etc. – there are virtually no limits to the possible applications.

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    scan2mobile – The smart solution for your book2net scanners

    The innovative software feature of MICROBOX

    The smartphone is a faithful companion. As it is useful for everything from app stores to Zoom meetings, we at MICROBOX have now developed a service that integrates the smartphone and makes digitizing with book2net scanners even more convenient than it already is. The solution is called scan2mobile and is likely to delight users of libraries and public archives in particular.

    Specifically, it involves saving digital copies on a smartphone. Until now, books, sketches, newspapers and other documents have been scanned in publicly accessible areas and the results are usually saved on a USB stick.

    The IT in the book2net scanning systems has guaranteed security for the device itself and for the external data carrier and will continue to do so. But now scan2mobile is being added. There are also options for storing digital copies in the cloud or having them sent automatically by email. The real breakthrough, however, is the smartphone solution.

    Digitization made easy

    First things first: if you want to conveniently download the files to your smartphone, you don’t need an app, so you don’t have to maintain one. Instead, you can access a browser-based solution completely independent of the operating system−for example iOS or Android−which we are happy to provide.

    It’s fast, convenient and completely independent of potential fluctuations in the Internet connection, because we have our own hotspot to ensure that scan2mobile works perfectly, no matter where the library or archive is located.

    It is obvious that this smart service is primarily recommended for public areas, where there is a high turnover of users and everyone can quickly pull a few scans onto their smartphone and then share the device with the next person. Now the digital copies can be accessed anywhere conveniently and in the usual excellent book2net quality. It couldn’t be simpler, especially as your trusty smartphone is always with you anyway.

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      CyberGlobe Culture

      A game changer in 3D technology

      A game changer in 3D technology

      Museums want to be places of experience, convey facts without being boring, show rarities, amaze and make people go home happy after their visit. And they want to go out into the world themselves. They don’t want to be tied to rooms, they want to be able to be experienced online everywhere. At any time. The Internet makes many things possible, but how do I manage to present exhibits exactly as they look? Three-dimensionally, from all sides, in top quality, without distortion. If this can be achieved, cultural history can be preserved digitally. You can arouse the enthusiasm of many people around the world for exhibits that they would otherwise have to go to a museum to see.

      The perfect scanning of a three-dimensional object is no longer a dream of the future: with the CYBERGLOBE Culture, we have launched a game changer for the cultural sector. The 3D scanner makes no compromises in terms of quality. Three-dimensional scanning in itself is not a completely new invention, but what is new is that the digitized image does not differ from the original in any way, no matter how small.

      There are also numerous other advantages that make the CYBERGLOBE Culture so special: Operation is straightforward, the device and the software take care of everything, all you have to do is place the object and press a button. The CYBERGLOBE Culture works extremely effectively, which also keeps the costs very low. If you convert the price to the number of strokes of the 3D scanner from book2net, then you can assume €0.47 per digitized item. A fraction of the cost you would have to pay for a service provider. From seven scans per hour, including calculation by the software, are possible.

      The purchase is therefore worthwhile from a financial point of view. Especially as you don’t need an IT expert to operate it. The employee digitizing the exhibits can do something else while the 80-megapixel camera moves downwards in a semicircle and the 0.1-millimetre-thick, yet robust support table rotates around its own axis. During this process, the camera takes photos from 250 perspectives. These images are then combined by the software to form a large whole without having to make any adjustments.

      Further advantages are the longevity of the product made in Germany and the service, because we are also on hand with help and advice after the purchase.

      Fully automatic, detailed iamges

      Before going into more detail about the technology of the CYBERGLOBE Culture, we should first look at how three-dimensional scanning has worked in the past and what results it has delivered. In the past, there were two possibilities: Either you could walk around the object with a handheld scanner, but it was impossible to always keep the exact same distance to the object. The consequence: distortions. Or you could make complicated set-ups, which took time, and still not manage to scan the object completely. Often, the holder that had been specially created was in the way.

      With the CYBERGLOBE Culture there is nothing in the way. The support table is transparent and non-reflective, so there are no problems when scanning from below. The four LED lights, the reflector and the True Color Converter also ensure that the results are true to the original. These components guarantee that the object is correctly illuminated, that no shadows are cast and that the colors are reproduced exactly as they appear on the original. This applies both to static objects such as a vase and to flexible objects such as a medal on a ribbon.

      A system „out of the box“

      State-of-the-art technology, finely tuned to each other, ensures excellent results. Objects with a maximum diameter and height of 46 cm and a maximum weight of 20 kg can be transferred to the digital world. Anyone interested in the exhibits in a museum can virtually “bring them home”. The three-dimensional digital image is a huge enrichment, not least for scientific research, as every little detail can be viewed without having to pick up the object. Of course, this also protects the objects. This also applies elsewhere: the CYBERGLOBE Culture is very mobile, so that it can easily be brought to the object − the reverse is not necessary.

      With the market launch of CYBERGLOBE Culture we have succeeded in giving a decisive boost to digitalization in the cultural sector. The past can be transported into the future. Vividly and faithfully. The technology is now available.

      VIDEO
      11.03.2024 Press event at the Gutenberg Museum on the occasion of the digitization of the Gutenberg Bible

      Gutenberg Bible Mainz digitized with Cobra A2

      11.03.2024 Press event at the Gutenberg Museum on the occasion of the digitization of the Gutenberg Bible
      11.03.2024 Press event at the Gutenberg Museum on the occasion of the digitization of the Gutenberg Bible / © D. Ghemires

      The famous 42-line Gutenberg Bible is considered to be the first book printed with movable type in the western world. It was created between 1452 and 1454 in Johannes Gutenberg’s printing workshop in Mainz, from which around 180 copies were produced. Of these, 30 were probably printed on precious parchment and around 150 on paper.

      The Gutenberg Museum in Mainz owns two editions of the Bible on paper, bound in three volumes. They are on display in the museum’s walk-in vault.

      For the project to digitize these precious Mainz editions, our company MICROBOX is providing the Gutenberg Museum with our special scanner book2net Cobra A2. This scanner with its gentle V-pressure and conservational lighting system was developed specifically for the digitization of the most precious illuminated manuscripts and incunabula.

      We are proud to contribute to making this unique and valuable cultural treasure available online to the general public and to scientific research.

      Further information on the press conference at the Gutenberg Museum on 11.03.2024 can be found at  https://www.swr.de/swraktuell/rheinland-pfalz/mainz/gutenberg-bibel-mainz-wird-digitalisiert-100.html

      Digitization of the Gutenberg Bible by an employee of the museum
      Digitization of the Gutenberg Bible by an employee of the museum / © D. Ghemires