Recent Web Tech Updates from Japan - YAPC::Europe 2009 Lisbon
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YAPC::Europe 2009 Lisbon 1
Recent Web Tech Updatesfrom Japan
YAPC::Europe 2009.08.04Yusuke Kawasaki (kawanet)
http://www.kawa.net/Recruit Media Technology Labs
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PaPaPa Live Comment System
• http://www.kawa.net/c/–Please access from your PC, iPhone, etc.
• Write your comment on form and click the button below to send it to the screen.
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← comment form← submit button
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Introducing Yusuke Kawasaki
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Yusuke Kawasaki(川﨑 有亮)
• Perl monger– XML::TreePP, XML::FeedPP, etc.
• JavaScript addict– Shibuya.js, the JUI conference
http://www.kawa.net/http://twitter.com/kawanet
• I created XML::TreePP module.• I think “DOM” needs more
elegant interface.
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CPAN Author
• XML::TreePP• XML::FeedPP• Class::Accessor::Children• Lingua::JA::Romanize::Japanese• Lingua::KO::Romanize::Hangul• Lingua::ZH::Romanize::Pinyin• Encode::JP::Emoji• Unicode::Emoji::Base
http://search.cpan.org/~kawasaki/YAPC::Europe 2009 Lisbon 5
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XML::TreePP
• XML string from/to Perl hash objectPure Perl, fast and easy
• use XML::TreePP;my $tpp = XML::TreePP->new();my $hash = {elem=>"value"};print $tpp->write($hash); # XML string
• my $xml = "<elem>value</elem>";my $tree = $tpp->parse($xml);print Dumper($tree); # Perl hash object
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DOM Manipulation by Wiimote
Last year, I manipulated the DOM by Wii Remote at YAPC::Europe 2008.
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The DOM Operations 2008
I manipulated it around the world.
2008.04 OSDC.TW2008.05 YAPC::Asia2008.06 YAPC::NA2008.08 YAPC::Europe
Taipei
TokyoChicago
Copenhagen
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The main difference betweenYAPC::Europe 2008 and 2009
My experiences inCopenhagen and Lisbon.
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48 kr(6.4 Euro) 0.8 Euro!
Super rock, Lisbon
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LiveChromaKey
ActionScript library forAR (Augmented Reality)
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LiveChromaKey
• Image synthesizing engine for AR– 2009.05 released by Kawanet (me!)
• Pure ActionScripe 3.0– No other library dependencies
• Only webcam needed– No blue back screen– No need to print
AR marker PDF
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Step 1/3 - Stationary background
At first, connect you webcam and run LiveChromaKey.Never move until it recognizes stationary background.
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Step 2/3 – Bluescreen on the fly
It generates bluescreen automatically.Live Video – Background = Bluescreen
- ⇒
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Step 3/3 - Transparent foreground
Get the foreground image as a translarent Sprite.Live Video – Bluescreen = Foreground
- ⇒
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LiveChromaKey Synopsis
LiveChromaKey provides four kinds of Sprites.
v a r c h r o m a k e y : L C K _ C o r e = n e w L C K _ C o r e ( ) ;c h r o m a k e y . i n i t ( ) ;
v a r s p L i v e : S p r i t e = c h r o m a k e y . g e t L i v e ( ) ;v a r s p B a c k : S p r i t e = c h r o m a k e y . g e t B a c k g r o u n d ( ) ;v a r s p M a s k : S p r i t e = c h r o m a k e y . g e t M a s k ( ) ;v a r s p F o r e : S p r i t e = c h r o m a k e y . g e t F o r e g r o u n d ( ) ;
t h i s . a d d C h i l d ( s p L i v e ) ;t h i s . a d d C h i l d ( s p B a c k ) ;t h i s . a d d C h i l d ( s p M a s k ) ;t h i s . a d d C h i l d ( s p F o r e ) ;
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Example: Travelling in Egypt
pyramid.swf
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Sprites augmented IN reality
The key feature of LiveChromaKey is to insert Sprites augmented between background and foreground images.
Sprite
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Example: Slideshow in reality
minority.swf
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Augmented reality by reality
Another way to augment reality is using past reality.
Current frame
Previous frame
-2nd frame
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Multiarmed deity
exile.swf
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Brothers on the fly
exile.swf
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“Exile” Dancing
exile.swf
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Demos
• You can play these demos on:
–http://kawanet.blogspot.com/–http://www.libspark.org/svn/as3/LiveChr
omaKey/trunk/examples/pyramid.html–http://www.libspark.org/svn/as3/LiveChr
omaKey/trunk/examples/minority.html–http://www.libspark.org/svn/as3/LiveChr
omaKey/trunk/examples/exile.html
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LivePointers
ActionScript library fordetecting colored pointers.
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LivePointers
• Live Color Pointer Detection Library• Uses Webcam as a 3D human interface
– No need to print AR marker PDF• Any Color Pixel Cluster = Pointing Device• Ex.
–Cluster #0 (250 pixels)–RGB: 25D985 (hex)–H: 152–S: 0.83–V: 0.85
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Live Color Pointer Detection LibraryYAPC::Europe 2009 Lisbon 27
Multiple Pointers Detection
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Labeled Pointer Detection
• Labeled pointer guided by color code.
• Works as a human input user interface device.
• Ex. a labeled pointer– Name: “fingercap”– Color: 0x2197A9 (uint)– Cost: approx US$1
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Price is an advantage for UI
Iʼm sure that Fingercap is definitely important user interface device of very near future.
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FingercapUS$1.00
Wii Remote ControllerUS$35.96
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Corporate Perl Situationin Japan
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Corporate Perl in Japan
• Several major Japanese companies strongly use Perl for their main business domains.
• DeNA (mobagame)–Mobile SNS. 10+ mil users.
• Livedoor–dankogai and miyagawa quit.
• Mixi–SNS. 16+ mil users.
• Recruit–Employs me. And more!
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Recruit Co., Ltd. (RGF)
• Major publishing company since 1960• Media is changing as well as in Japan.• Now third part of our sales is earning
on/from the Interet.• Established Media Technology Labs 2007
–Web tech R&D, business dev, incubation
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Japan Perl Association
• Established on April 2009.–The Chair: Daisuke Maki (lestrrat)–Focusing to support corporate use of Perl
and Perl hackers job changing.
• Hosts YAPC::Asia 2009 Tokyo.–2009.09.10 – 09.11 Autumn–Shibuya.pm has hosted Y::A until 2008.
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OpenSocial ContainerBy Perl
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OpenSocial
• OpenSocial is a set of APIs for SNS.• Many SNSs in the world, including Mixi in
Japan, support OpenSocial apps.
• Two way to access to social network ■–JavaScript library interface ■–RESTful XML / JSON-RPC protocols ■
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Apache Shindig
• An OpenSocial container implementionby Apache incubation project.
• Consists of four parts:–Gadget Container JavaScript–Gadget Rendering Server–OpenSocial Container JavaScript–OpenSocial Data Server
• Java and PHP version of it released.• No Perl version yet.
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Importing Shindig to Perl
• Weʼre importing Shindigʼs RPC Data API handling servlets to Perl!
• Collaboration/partnership wanted.
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A p i S e r v l e t . p mA p p D a t a H a n d l e r . p mA p p D a t a S e r v i c e . p mC o l l e c t i o n O p t i o n s . p mD a t a R e q u e s t H a n d l e r . p mD a t a S e r v i c e S e r v l e t . p mJ s o n R p c S e r v l e t . p mP e r s o n H a n d l e r . p mP e r s o n S e r v i c e . p mR e q u e s t I t e m . p mR e s p o n s e I t e m . p mR e s t R e q u e s t I t e m . p mR p c R e q u e s t I t e m . p m
:Apache
Perl Perl PHP
GadgetRenderServlet
DataRPC APIServlet
SNSWebsite
Database Layer
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Emoji
Picture characters commonly used on mobile phones in Japan
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Background
• 3 mobile phone carriers in Japan.–NTT DoCoMo, KDDI and SoftBank.–Vodafone has gone away from Japan.
• Each company has defined their Emoji character sets with less compatibility.
• Most Japanese users heavily use Emojison mobile email.
39YAPC::Europe 2009 Lisbon
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Private code points
• Each company uses their own code point in PUA (private use area). Ex. “heart”
• DoCoMo KDDI SoftBankU+E6EC U+E595 U+E022SJIS-F991 SJIS-F7B2 SJIS-F962
• We need translation maps for each pair of Emoji sets.
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NTT DoCoMo Emojis (282)
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KDDI Emojis (647)
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SoftBank Emojis (351)
Some of Emojis are displayed like animation GIFs on mobile phone devices.
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Googleʼs code points
• Gmail supports “emoticon” characters.
• They also uses PUA again and has their translation map from/to Japanese Emojis.
• Then, Googleʼs “emoji4unicode” project has proposed unified code points of Japanese Emojis to Unicode standard. Thanks!
• http://emoji4unicode.googlecode.com/YAPC::Europe 2009 Lisbon 44
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Ex. Emoji for Sun
• DoCoMo PUA <U+E63E>• KDDI PUA <U+E488>• SoftBank PUA <U+E04A>• Google PUA <U+FE000>
• Unicode Standard<U+2600> “BLACK SUN WITH RAYS”
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Ex. Emoji for Dung
• DoCoMo (donʼt have emoji for dung)• KDDI PUA <U+E4F5>• SoftBank PUA <U+E05A>• Google PUA <U+FE4F4>
• Unicode Standard proposed<U+1F410> “DUNG”
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Perl Modules Released
• Unicode::Emoji::E4U–Emoji mappings based on emoji4unicode
project–Pure Perl OO interface for the table
• Encode::JP::Emoji–Emoji encodings and cross-mapping
tables in pure Perl–Pure Perl encodings for Encode.pm–XS (UCM) version of this was canceled.
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Encode::JP::Emoji Usageu s e E n c o d e ;u s e E n c o d e : : J P : : E m o j i ;
# f r o m D o C o M o < U + E 6 E 2 > t o G o o g l e < U + F E 8 2 E >m y $ k e y c a p 1 = " ¥ x E E ¥ x 9 B ¥ x A 2 " ;E n c o d e : : f r o m _ t o ( $ k e y c a p 1 , ' x - u t f 8 - e 4 u - d o c o m o ' , ' u t f 8 ' ) ;
# f r o m K D D I < S J I S + F 7 F 5 > t o S o f t B a n k < S J I S + F 7 4 7 >m y $ s c r e a m = " ¥ x F 7 ¥ x F 5 " ;E n c o d e : : f r o m _ t o ( $ s c r e a m , ' x - s j i s - e 4 u - k d d i a p p ' ,
' x - s j i s - e 4 u - s o f t b a n k 3 g ' ) ;
Encode::JP::Mobile is an alternative module to do above.
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MA5Web Application Contest
http://mashupaward.jp/
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2009/8/5(C) RECRUIT Co., Ltd. 50
Mashup Awards
• Largest web application development contest in Japan since 2006.
• MA4 – 2008.06.03 – 09.16
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ChaMap – MA4 Grand Prix
http://www.chamap.net/
Geo location based chat communication platform serviceusing Google Maps, Language API and some other APIs. Real time translation and read out in English.
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Get 1,000,000 Yen on MA5!
See detail on http://mashupaward.jp/english/about the previous MA4 contest last year.
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Conclusion
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Conclusion
• Corporate Perl is growing also in Japan.• Come to Japan and see us in YAPC::Asia
2009 on this September.• Recruit (RGF) is working for an OpenSocial
container implemented by Perl.• Dung Emoji code point <U+1F410> is
proposed to Unicode standard.• Apply your work to MA5 contest to win the
grand prix of 1,000,000Yen! (≒9,000 beer)
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Thank you!
Yusuke Kawasaki川﨑 有亮 (kawanet)
http://www.kawa.net/