Web rivals rush to give people 3D globe
Written on Tuesday, November 28, 2006 by Gemini
Race Between Google & Microsoft Will Produce An Online Map Allowing Surfers To Virtually Navigate A City
Two Internet giants have embarked on a race to become the first 3D cartographers of the world. The result is expected to be an online map that allows web surfers to land in a city from the sky, walk its streets and navigate its hotels, shops and attractions without ever having to visit in person.
The rival schemes, costing hundreds of millions of pounds, are based on Google Earth, the search engine’s existing 2D photographic map of the world, and Microsoft’s Virtual Earth, a similar system. Last month, Microsoft launched Virtual Earth 3D, which has detailed three-dimensional replicas of the centres of 15 American cities, including New York and Los Angeles. There are plans to add more than a dozen in Britain over the next few years.
Both services currently rely on detailed satellite images from Nasa and other space agencies and governments, which enable users to zoom in from 200 miles in space to pictures of the roof of their own home or of elephants roaming the African plains. Microsoft is now commissioning photographers to take millions of pictures of urban landscapes from planes, vans and motorbikes. The images are patched together using digital imaging software to create 3D buildings users can enter, walk past or fly by. 
Google is taking the cheaper option of inviting users to create its virtual cities. In March, the company bought SketchUp, an internet tool that lets people create their own 3D images of buildings. It plans to add the best of these, which include British landmarks, to Google Earth later this year.
As the rival schemes develop, buildings will become interactive, enabling users to “enter” them, obtain information, buy goods inside and talk to other “visitors”. Eventually, landscapes such as forests and mountains could also be included. The move may bring about a transformation in how people use the Internet. Instead of relying on traditional search engines, in which they enter words into boxes on screen, users would be able to navigate the world using a virtual replica of how it appears in real life. They could, for example, “walk” the streets of Manchester online or choose items from a supermarket aisle from their living room while gossiping with fellow shoppers about the prices.
Microsoft and Google launched their online photographic mapping services at the end of 2005, since when it is estimated they have each been downloaded more than 100m times. Microsoft’s early 3D service has few extras beyond traffic information and adverts. In Britain, the company is showing 3D models only of the outsides of landmarks such as the Tower of London and the London Eye. In future features may include a route planner, which gives a virtual run-through of a journey.
