Re: [OSM-talk] GSoC End: signFinder

2009-08-26 Thread Elena of Valhalla
On Wed, Aug 19, 2009 at 3:44 PM, Martin
Koppenhoeferdieterdre...@gmail.com wrote:
 In Italy (at least
 in Rome) they are often engraved marble plates.

Standard signs in italy are supposed to be black on white with a thin
blue border, but there are still lots of old marble plates and even
names painted on the walls.

-- 
Elena ``of Valhalla''

homepage: http://www.trueelena.org
email: elena.valha...@gmail.com

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Re: [OSM-talk] GSoC End: signFinder

2009-08-23 Thread Kev js1982
Round here (south Nottingham, uk) black on white, with post codes and
council name in red.
In the city itself most are black on white, with some old ones white on black.


On 8/20/09, Łukasz Jernaś deej...@srem.org wrote:
 Poland, Greater Poland :
 White on blue and black on white. It can be different even in the same
 city...

 Regards,
 --
 Łukasz

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-- 
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Re: [OSM-talk] GSoC End: signFinder

2009-08-23 Thread Stefan de Konink
On Sun, 23 Aug 2009, Kev js1982 wrote:

 Round here (south Nottingham, uk) black on white, with post codes and
 council name in red.
 In the city itself most are black on white, with some old ones white on black.

Could anyone that actually knows `localized' streetsigns maybe provide
them lets say at least 20 of them, pushing them to openstreetphoto or in
private mail to Tijs or me?


Stefan


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Re: [OSM-talk] GSoC End: signFinder

2009-08-20 Thread Mike Harris
UK - usually black on white. 


Mike Harris

-Original Message-
From: Erik Johansson [mailto:e...@kth.se] 
Sent: 19 August 2009 12:26
To: Tijs Zwinkels
Cc: talk@openstreetmap.org
Subject: Re: [OSM-talk] GSoC End: signFinder

On Tue, Aug 18, 2009 at 8:28 PM, Tijs
Zwinkelsopenstreet...@tumblecow.net wrote:

 The project is right now trained to read dutch street-signs, but as 
 long as they have a distinct color, there's no reason why it couldn't 
 read foreign street-signs. Read this:
 http://code.google.com/p/signfinder/wiki/TrainingOtherCountries


Since this version can't be trained to handle white background signs, I
wonder what color are streetname signs around the world?

Netherlands white on blue
Sweden black on white

--
/emj




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Re: [OSM-talk] GSoC End: signFinder

2009-08-20 Thread Martin Norbäck
 From: Erik Johansson [mailto:e...@kth.se]
 Sent: 19 August 2009 12:26
 To: Tijs Zwinkels
 Cc: talk@openstreetmap.org
 Subject: Re: [OSM-talk] GSoC End: signFinder

 Since this version can't be trained to handle white background signs, I
 wonder what color are streetname signs around the world?

 Netherlands white on blue
 Sweden black on white

Except for Gothenburg, where we have white on blue, and use even
number on the left side of the street. We do things differently here.

/Martin

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Re: [OSM-talk] GSoC End: signFinder

2009-08-20 Thread Jonas Häggqvist
Mike Harris wrote:
 UK - usually black on white. 

Denmark - New signs White on Blue. Old signs red on white.

At least in these parts. I don't know if there's regulation in the area.

-- 
Jonas Häggqvist
rasher(at)rasher(dot)dk

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Re: [OSM-talk] GSoC End: signFinder

2009-08-20 Thread Łukasz Jernaś
Poland, Greater Poland :
White on blue and black on white. It can be different even in the same city...

Regards,
-- 
Łukasz

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Erik Johansson
On Tue, Aug 18, 2009 at 8:28 PM, Tijs
Zwinkelsopenstreet...@tumblecow.net wrote:

 The project is right now trained to read dutch street-signs, but as long as
 they have a distinct color, there's no reason why it couldn't read foreign
 street-signs. Read this:
 http://code.google.com/p/signfinder/wiki/TrainingOtherCountries


Since this version can't be trained to handle white background signs,
I wonder what color are streetname signs around the world?

Netherlands white on blue
Sweden black on white

-- 
/emj

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Ian Dees
On Wed, Aug 19, 2009 at 6:26 AM, Erik Johansson e...@kth.se wrote:


 Since this version can't be trained to handle white background signs,
 I wonder what color are streetname signs around the world?

 Netherlands white on blue
 Sweden black on white


In the US I've seen:
White on blue, green, brown, and yellow
Black on blue, green, and yellow
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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Peter Körner
 Since this version can't be trained to handle white background signs,
 I wonder what color are streetname signs around the world?
 
 Netherlands white on blue
 Sweden black on white

German Black on White (newer) or White on dark Blue (older, but not 
uncommon) and sometimes White on dark Red (very, old and seldom)

Peter

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Liz
On Wed, 19 Aug 2009, Erik Johansson wrote:
 Since this version can't be trained to handle white background signs,
 I wonder what color are streetname signs around the world?

 Netherlands white on blue
 Sweden black on white

here, whatever the local council decides to put up
often reflective silverish background, black letters
may be black on yellow
may be white on blue
may be green on white

and that is just checking a few of my photos 



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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Teemu Koskinen
On Wed, 19 Aug 2009 14:26:29 +0300, Erik Johansson e...@kth.se wrote:

 Since this version can't be trained to handle white background signs,
 I wonder what color are streetname signs around the world?

 Netherlands white on blue
 Sweden black on white


In Finland: Black on white

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Tijs Zwinkels
Preliminary,  but at least we can conclude that the colors are diverse, and
that black-on-white is rather common.

I hope to be able to detect and read these eventually, but I'll have to come
up with something better than the current color-histogram matching
technique. :)

- Tijs

On Wed, Aug 19, 2009 at 7:30 AM, Teemu Koskinen teemu.koski...@mbnet.fiwrote:

 On Wed, 19 Aug 2009 14:26:29 +0300, Erik Johansson e...@kth.se wrote:


 Since this version can't be trained to handle white background signs,
 I wonder what color are streetname signs around the world?

 Netherlands white on blue
 Sweden black on white


 In Finland: Black on white

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Arlindo Pereira
Perhaps would be a good idea to set up a wiki page for the signs with the
colors and a sample photo?

Here in Rio de Janeiro, Brazil they're a rectangle with the street name in
white on blue, and a blue on white stripe with the first and last building
numbers of the block and the street's postcode (which are not like zip
codes, they're different for every single street).

Cheers

2009/8/19 Tijs Zwinkels openstreet...@tumblecow.net

 Preliminary,  but at least we can conclude that the colors are diverse, and
 that black-on-white is rather common.

 I hope to be able to detect and read these eventually, but I'll have to
 come up with something better than the current color-histogram matching
 technique. :)

 - Tijs


 On Wed, Aug 19, 2009 at 7:30 AM, Teemu Koskinen 
 teemu.koski...@mbnet.fiwrote:

 On Wed, 19 Aug 2009 14:26:29 +0300, Erik Johansson e...@kth.se wrote:


 Since this version can't be trained to handle white background signs,
 I wonder what color are streetname signs around the world?

 Netherlands white on blue
 Sweden black on white


 In Finland: Black on white



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-- 
Arlindo Saraiva Pereira Jr.

Bacharelando em Sistemas de Informação - UNIRIO - uniriotec.br
Consultor de Software Livre da Uniriotec Consultoria - uniriotec.com

Acadêmico: arlindo.pere...@uniriotec.br
Profissional: arlindo.pere...@uniriotec.com
Geral: cont...@arlindopereira.com
Tel.: +5521 92504072
Jabber/Google Talk: nig...@nighto.net
Skype: nighto_sumomo
Chave pública: BD065DEC
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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Martin Koppenhoefer
2009/8/19 Peter Körner osm-li...@mazdermind.de:
 Since this version can't be trained to handle white background signs,
 I wonder what color are streetname signs around the world?

 Netherlands white on blue
 Sweden black on white

 German Black on White (newer) or White on dark Blue (older, but not
 uncommon) and sometimes White on dark Red (very, old and seldom)

IMHO that's a communal decision in Germany and can be (theoretically)
all kind of colours. There is also white on blue. In Italy (at least
in Rome) they are often engraved marble plates.
See here for some examples:
(might be harder I guess)
http://www.23hq.com/dieterdreist/photo/4809579?album_id=4237494
http://www.23hq.com/dieterdreist/photo/4809316?album_id=4237494
http://www.23hq.com/dieterdreist/photo/4715414?album_id=4237494

cheers,
Martin

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Lennard
Arlindo Pereira wrote:
 Perhaps would be a good idea to set up a wiki page for the signs with 
 the colors and a sample photo?

Not to mention the habit of some municipalities here to clarify the name 
of the street on a separate line. Or what about Belgian bilingual signs, 
with a creative

Rue
  actual name
Straat

system, cleverly making use of the fact that in French the 'street' word 
goes at the beginning and in Dutch it goes at the end.

 building numbers of the block and the street's postcode (which are not 
 like zip codes, they're different for every single street).

ZIP code systems are not always of the one number for a big block of 
houses/streets variety.


-- 
Lennard

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Nick Whitelegg
here, whatever the local council decides to put up
often reflective silverish background, black letters
may be black on yellow
may be white on blue
may be green on white

Where's here?
The UK seems to be rather variable, black on white is most common but I've 
seen white on green, white on black, and rarely, other schemes such as 
white on blue.

The UK seems to be particularly heterogeneous with regards to colour and 
font compared to other countries I've visited such as Germany and the USA. 
Other countries have more tendency for a national scheme, whereas the UK 
seems to depend on the local council, and even they are inconsistent (my 
own city has about 10 to 15 different styles, some introduced within a few 
months of each other!)

Nick

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Re: [OSM-talk] GSoC End: signFinder

2009-08-19 Thread Greg Troxel

Nick Whitelegg nick.whitel...@solent.ac.uk writes:

here, whatever the local council decides to put up
often reflective silverish background, black letters
may be black on yellow
may be white on blue
may be green on white

 Where's here?
 The UK seems to be rather variable, black on white is most common but I've 
 seen white on green, white on black, and rarely, other schemes such as 
 white on blue.

 The UK seems to be particularly heterogeneous with regards to colour and 
 font compared to other countries I've visited such as Germany and the USA. 
 Other countries have more tendency for a national scheme, whereas the UK 
 seems to depend on the local council, and even they are inconsistent (my 
 own city has about 10 to 15 different styles, some introduced within a few 
 months of each other!)

In Massachusetts, US, street sign coloring can vary at each town (where
there are ~350 towns, many of which have ~ afew thousand people).  There
are a lot of white on green (my town), but the next town west has white
on red.  Plus, the town I grew up has black raised lettering on white
with a black border (think pretty wrought iron) for old signs, but I
think is replacing them with white on green.

I would think the solution is an easy way to train/teach, not a giant
database of the world, as it seems too variable in time to keep up with
at that scale.


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[OSM-talk] GSoC End: signFinder

2009-08-18 Thread Tijs Zwinkels
Hey All,

As of yesterday, the Google Summer of Code has ended. With some appropriate
pride, I offer you signFinder: http://code.google.com/p/signfinder/ .
As part of the OpenStreetPhoto project, this program detects, segments, and
reads dutch street-signs. For high-quality pictures (and not too old
street-signs), performance is good.

The project is right now trained to read dutch street-signs, but as long as
they have a distinct color, there's no reason why it couldn't read foreign
street-signs. Read this:
http://code.google.com/p/signfinder/wiki/TrainingOtherCountries document on
how to adapt the signFinder to street-signs of other countries.

The end of the summer of code, doesn't mean that I'll stop working on this
project. There are still methods to explore, and performance to improve.
More importantly: I'm looking for practical applications for this software.
I'll be working with Stefan and others on an integration with the
OpenStreetView / OpenStreetPhoto project, but suggestions on an exact use
are welcome, as well as wholly unrelated ideas.

I just saw that a discussion going on about video in OpenStreetView. I
expect to have a video to play with soon, and will report if results are
reasonable.

- Tijs
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Re: [OSM-talk] GSoC End: signFinder

2009-08-18 Thread Peter Körner
Whooohoow this is so cool! Looks like a lot of Voodoo to me :)

As I saw from the samples It doesn't work well on blurred images, so it 
won't work with sth. like a helmet or a car camera, would it?

Peter


Tijs Zwinkels schrieb:
 Hey All,
 
 As of yesterday, the Google Summer of Code has ended. With some 
 appropriate pride, I offer you signFinder: 
 http://code.google.com/p/signfinder/ .
 As part of the OpenStreetPhoto project, this program detects, segments, 
 and reads dutch street-signs. For high-quality pictures (and not too old 
 street-signs), performance is good.
 
 The project is right now trained to read dutch street-signs, but as long 
 as they have a distinct color, there's no reason why it couldn't read 
 foreign street-signs. Read this: 
 http://code.google.com/p/signfinder/wiki/TrainingOtherCountries document 
 on how to adapt the signFinder to street-signs of other countries.
 
 The end of the summer of code, doesn't mean that I'll stop working on 
 this project. There are still methods to explore, and performance to 
 improve.
 More importantly: I'm looking for practical applications for this 
 software. I'll be working with Stefan and others on an integration with 
 the OpenStreetView / OpenStreetPhoto project, but suggestions on an 
 exact use are welcome, as well as wholly unrelated ideas.
 
 I just saw that a discussion going on about video in OpenStreetView. I 
 expect to have a video to play with soon, and will report if results are 
 reasonable.
 
 - Tijs


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Re: [OSM-talk] GSoC End: signFinder

2009-08-18 Thread Stefan de Konink
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Peter Körner schreef:
 Whooohoow this is so cool! Looks like a lot of Voodoo to me :)
 
 As I saw from the samples It doesn't work well on blurred images, so it 
 won't work with sth. like a helmet or a car camera, would it?

Camera's are not by default blury, they become blurry if the
shutterspeed is too low ;)


Stefan
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Re: [OSM-talk] GSoC End: signFinder

2009-08-18 Thread Aun Johnsen (via Webmail)
On Tue, 18 Aug 2009 23:02:07 +0200, Stefan de Konink ste...@konink.de
wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA512
 
 Peter Körner schreef:
 Whooohoow this is so cool! Looks like a lot of Voodoo to me :)
 
 As I saw from the samples It doesn't work well on blurred images, so it 
 won't work with sth. like a helmet or a car camera, would it?
 
 Camera's are not by default blury, they become blurry if the
 shutterspeed is too low ;)
 
And for a fully automated camera, the shutterspeed is set by light
conditions, i.e. not enough light = blurry pictures

-- 
Brgds
Aun Johnsen
via Webmail

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