We present a complete, video-based 3d documentation process for the submerged remains of Neolithic pile dwellings at the UNESCO World Heritage Site "See am Mondsee" in Austria. We discuss good practice routines and solutions, such as cable management, supporting the Unmanned Underwater Vehicle (UUV) when strong currents are prevalent, and documentation/record keeping. The recorded site is a Neolithic lake village dating to the 4th millenium BC. Based on initial reconstruction results, we improved the image matching process of our Structure from Motion (SfM) pipeline (built around the free end-user application VisualSFM), by replacing its default feature detector (SiftGPU) with our own implementation of adaptive feature detection. The campaign was accompanied by a German television film crew. Their documentary was shown on the German public television (ARD) broadcast "W wie Wissen". At "See" (am Mondsee/at lake Mondsee), diving operations are carried out by one of two site managers of the Kuratorium Pfahlbauten in cooperation with, in most cases, two scientific divers, working several days once a year [Pohl 2016]. During these monitorings, a grid of erosion markers is regularly read and documented. In this way, possible endangerment to the substance of the remains or their immediate surroundings, caused by the removal of the protective sediment layer, can be assessed.An active involvement of citizen scientists would further facilitate denser surveillance of archaeological sites, and thus a more sustainable protection of dwellings belonging to the UNESCO World Heritage than our own resources could ever allow.Due to strict national regulations, it is nearly impossible for citizen scientists to participate as divers. However, it is feasible to achieve something similar using videogrammetry supported by Unmanned Underwater Vehicles (UUVs), operating in accordance with the current judicial framework. essential for the implementation of this project that the technology used provides good results with regard to the most accurate documentation possible, is cost-effective and user-friendly. In addition, the recording process must not endanger the substance of archaeological sites.The projects "Archaeocopter" and "Archaeonautic" 3 , run by Hochschule für Technik und Wirtschaft (HTW) Dresden and Freie Universität (FU) Berlin, were initiated in cooperation with the Deutsches Archäologisches Institut (DAI) and the archaeological heritage office in the German federal state of Saxony. The philosophy of both projects is not to try to maximize the level of detail achievable using highest resolution sensors, but to focus on what is actually required for different practical purposes, and providing robust and cost-effective solutions.
We present TactJam, an end-to-end suite for creating and sharing low fidelity prototypes of on-body vibrotactile feedback. With Tac-tJam, designers can create, record and share vibrotactile patterns online. This opens up new ways of collaboratively designing vibrotactile patterns both in collocated as well as in remote settings. We evaluate TactJam in a two-part distributed online workshop, exploring the design of on-body tactons. Participants were able to successfully use TactJam to learn about tacton design. We present an overview of mappings between tactons and their associated concepts before comparing the results of tactons created using solely a GUI and tactons created through experimenting with placements directly on the body. Conducting both parts of the workshop separately highlighted the importance of designing directly with bodies: less implicit assumptions were made, and designs were guided by personal experience. We reflect on these results and close on deliberations for the future development of TactJam.This work is licensed under a Creative Commons Attribution-NonCommercial International 4.0 License.
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