Time Machine Oulu - Multichannel Augmented Reality
Jaakko Peltonen · 2002
Oulu is a city of technology, technopolis as they say, but only small number of the inhabitants know even some facts about its history. We have implemented a ‘time-machine’, that can represent the city in terms of past physical structures. A new dimension is also added, a database of Oulu containing not only buildings, but also all kinds of information and activities that has happened the city over the years such as fires. The material for the database was obtained from a fire-insurance company named Tarmo Oy. It was insuring most of the buildings in Oulu, and had material representing approximately 80% of the city. The insurance documents have been verified to be accurate. The characteristics for the city of Oulu in 18th and 19th century is quite unique for the region. The city was fairly large and major part of the houses were built from timber logs. The city was a vast number of small wooden 1 and 1 1⁄2 story height buildings. The current database covers the years between two devastating fires in Oulu, 1822-1882. There are over 3500 buildings with more than 110 records at the most in the database. Soon the years 1882 to 1950, which is approximately the same time scale as the previous time period will be merged into the current database.