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Toni Rantanen, Arttu Julin, Juho-Pekka Virtanen, Hannu Hyyppä and Matti T. Vaaja
Increasing interest has recently been shown towards the digital twins of cities. These urban digital twins utilize 3D city models together with other data sources, such as open data, which can be accessed, e.g., through application programming interfaces...
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Ana Quijano, Jose L. Hernández, Pierre Nouaille, Mikko Virtanen, Beatriz Sánchez-Sarachu, Francesc Pardo-Bosch and Jörg Knieilng
Sustainability is pivotal in the urban transformation strategy in order to reach more resource-efficient, resilient and smarter cities. The goal of being a sustainable city should drive the decisions for city interventions, and measuring city progress is...
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Hongzhou Dong and Sannakaisa Virtanen
Zinc-based alloys are emerging as an alternative to magnesium- and iron-based alloys for biodegradable implant applications, due to their appropriate corrosion performance and biocompatibility. However, localized corrosion occurring on the zinc surface, ...
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Juho-Pekka Virtanen, Kaisa Jaalama, Tuulia Puustinen, Arttu Julin, Juha Hyyppä and Hannu Hyyppä
3D city models and their browser-based applications have become an increasingly applied tool in the cities. One of their applications is the analysis views and visibility, applicable to property valuation and evaluation of urban green infrastructure. We ...
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Kaisa Jaalama, Heikki Kauhanen, Aino Keitaanniemi, Toni Rantanen, Juho-Pekka Virtanen, Arttu Julin, Matti Vaaja, Matias Ingman, Marika Ahlavuo and Hannu Hyyppä
The importance of ensuring the adequacy of urban ecosystem services and green infrastructure has been widely highlighted in multidisciplinary research. Meanwhile, the consolidation of cities has been a dominant trend in urban development and has led to t...
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Sami El-Mahgary, Juho-Pekka Virtanen and Hannu Hyyppä
The importance of being able to separate the semantics from the actual (X,Y,Z) coordinates in a point cloud has been actively brought up in recent research. However, there is still no widely used or accepted data layout paradigm on how to efficiently sto...
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Mikko Maksimainen, Matti T. Vaaja, Matti Kurkela, Juho-Pekka Virtanen, Arttu Julin, Kaisa Jaalama and Hannu Hyyppä
Roadside vegetation can affect the performance of installed road lighting. We demonstrate a workflow in which a car-mounted measurement system is used to assess the light-obstructing effect of roadside vegetation. The mobile mapping system (MMS) includes...
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Arttu Julin, Kaisa Jaalama, Juho-Pekka Virtanen, Mikko Maksimainen, Matti Kurkela, Juha Hyyppä and Hannu Hyyppä
The Internet has become a major dissemination and sharing platform for 3D content. The utilization of 3D measurement methods can drastically increase the production efficiency of 3D content in an increasing number of use cases where 3D documentation of r...
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Arttu Julin, Kaisa Jaalama, Juho-Pekka Virtanen, Matti Pouke, Johanna Ylipulli, Matti Vaaja, Juha Hyyppä and Hannu Hyyppä
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Arman Dastpak, Kirsi Yliniemi, Mariana Cecilio De Oliveira Monteiro, Sarah Höhn, Sannakaisa Virtanen, Mari Lundström and Benjamin P. Wilson
In this study, a waste of biorefinery—lignin—is investigated as an anticorrosion coating on stainless steel. Corrosion behavior of two lignin types (hardwood beech and softwood spruce) was studied by electrochemical measurements (linear sweep...
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