Curious if this will be a problem for AR.
(When I'm consistently above-ground, however, e.g. on a car trip, compass orientation remains perfect -- I'm assuming it calibrates itself to GPS movement or something.)
What's infuriating is that nearly all map applications don't show you the pertinent street names or which directions one-way streets are going. You have to zoom and pan and whatever else to find out which street you're on.
This AR thing may be a nice upgrade that would help but please for the love of god just show me all street-names that I might be on and which direction one-way traffic goes.
It still works and it's quick and easy to do.
1) its a visual search. This means that using streetview data, google has crunched a sparse 3d pointcloud. Each of these points are represent a globally unique has of a point. (a global descriptor)
2) This is better than GPS, because its possible to resolve a position to ~20cms and crucially where true north is. Crucially it doesn't need an unobstructed view of the sky to resolve a position.
In urban canyons, where sky is limited, there are loads of unique visual points that are more than enough to calculate an accurate position. It also works inside, in places like malls.
The drawback is that it requires constant updating to remain accurate, buildings and hoardings change. Now, there is a patent for self updating, but google doesn't own it.
Also, they don't appear to be offering this service to third parties, which is a shame.
This does the work for you.
Not to mention that this type of app is treating people as incapable of following directions and it opens up the possibility of new avenues of advertising. Google already keeps an archive of your whereabouts and can even tell when you get in and out of a car. Just imagine wielding your phone around and getting "special offers" for that store you go by but never walk into.
Umm, the camera stream of AR isn't transmitted from your phone. The 3D objects are rendered on top of detected features on device.
Very legitimate concern.
Same way I know there's no pagan god hiding in my phone whispering my secrets to evil aliens: by actually working with the technology, observing the behaviour of my device and reading the privacy policies and activity log published by Google and not finding any proof.
Of course you can argue that Google might lie for whatever reason... but then you probably shouldn't be using Google Maps at all. Or any product built by a corporation.
Seems like a legit solution to the common problem of people standing around trying to work out which direction they're actually pointing.
1)ingesting for the purpose of crowdsourcing street view imagery
If they are doing that(Which I strongly suggest they are not, well at least not yet), then having multiple views allows google to remove things that move (people/cars)
2) Depending on how they do this, if its using "visual landmarks" then people are a massive pain. They move, and cause all sorts of problems when doing positioning. So they'll need to be removed for the system to work properly.
3) The actual scary part is not the faces, persay. Its the fact that any picture where google has streetview is now able to be precisely located, regardless of who, when or how it was taken.
I wonder if it could work in a dark alley or do indoor navigation in malls.
As a side note, the API docs in both Android and iOS fail to mention how unreliable the compass outputs are!
Even gps direction is vastly superior during walks - despite the obvious issues with that.
Because that's the only way you'll fix that.
How would you design it better?
I rarely use walking directions due to the awful accuracy of GPS between buildings. AR walking directions are fantastic.
It definitely would be useful in unfamiliar, dense urban environments where maybe the streets are a bit too close together to easily distinguish on an overview map.
Last week, with this feature, I pointed my camera across the street and it told me to go left. It was really really useful.
Being able to read a map and orient yourself in your environment appears be a dying art.
Not at every exit, and you can't just casually stroll over to one in the middle of rush hour.
> The roads are not unlabelled
Sure they are, half the time the tiny road sign is obscured by adverts, construction, or just at an awkward angle not visible from the tube exit.
> and additionally a huge number of local area maps for pedestrians:
Again, not at every station, mainly the tourist ones.