This document summarizes a presentation given by Yusuke Kawasaki at the YAPC::Europe 2009 conference in Lisbon. It introduces a live commenting system for conference presentations, provides biographical information about Kawasaki, and describes several ActionScript libraries he created - LiveChromaKey for augmented reality and LivePointers for detecting colored pointers. It also discusses emoji character sets and Perl modules for encoding and mapping emojis across different platforms.
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Recent Web Tech Updates from Japan - YAPC::Europe 2009 Lisbon
1. Recent Web Tech Updates
from Japan
YAPC::Europe 2009.08.04
Yusuke Kawasaki (kawanet)
http://www.kawa.net/
Recruit Media Technology Labs
YAPC::Europe 2009 Lisbon 1
2. PaPaPa Live Comment System
? http://www.kawa.net/c/
C Please access from your PC, iPhone, etc.
? Write your comment on form and click the
button below to send it to the screen.
○ comment form
○ submit button
YAPC::Europe 2009 Lisbon 2
4. Yusuke Kawasaki┫D 嗤疏
? Perl monger
C XML::TreePP, XML::FeedPP, etc.
? JavaScript addict
C 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.
YAPC::Europe 2009 Lisbon 4
6. XML::TreePP
? XML string from/to Perl hash object
Pure 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
YAPC::Europe 2009 Lisbon 6
7. DOM Manipulation by Wiimote
Last year, I manipulated
the DOM by Wii Remote
at YAPC::Europe 2008.
YAPC::Europe 2009 Lisbon 7
8. The DOM Operations 2008
I manipulated it around the world.
Copenhagen
Tokyo
Chicago
Taipei
2008.04 OSDC.TW
2008.05 YAPC::Asia
2008.06 YAPC::NA
2008.08 YAPC::Europe
YAPC::Europe 2009 Lisbon 8
9. The main difference between
YAPC::Europe 2008 and 2009
My experiences in
Copenhagen and Lisbon.
YAPC::Europe 2009 Lisbon 9
10. Super rock, Lisbon
48 kr
0.8 Euro!
(6.4 Euro)
YAPC::Europe 2009 Lisbon 10
11. LiveChromaKey
ActionScript library for
AR (Augmented Reality)
YAPC::Europe 2009 Lisbon 11
12. LiveChromaKey
? Image synthesizing engine for AR
C 2009.05 released by Kawanet (me!)
? Pure ActionScripe 3.0
C No other library dependencies
? Only webcam needed
C No blue back screen
C No need to print
AR marker PDF
YAPC::Europe 2009 Lisbon 12
13. Step 1/3 - Stationary background
At first, connect you webcam and run LiveChromaKey.
Never move until it recognizes stationary background.
YAPC::Europe 2009 Lisbon 13
14. Step 2/3 C Bluescreen on the fly
It generates bluescreen automatically.
Live Video C Background = Bluescreen
?
YAPC::Europe 2009 Lisbon 14
15. Step 3/3 - Transparent foreground
Get the foreground image as a translarent Sprite.
Live Video C Bluescreen = Foreground
?
YAPC::Europe 2009 Lisbon 15
16. 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 ) ;
YAPC::Europe 2009 Lisbon 16
18. Sprites augmented IN reality
The key feature of LiveChromaKey is to insert
Sprites augmented between background and
foreground images.
Sprite
YAPC::Europe 2009 Lisbon 18
20. Augmented reality by reality
Another way to augment reality is using past reality.
-2nd frame
Previous frame
Current frame
YAPC::Europe 2009 Lisbon 20
24. Demos
? You can play these demos on:
C http://kawanet.blogspot.com/
C http://www.libspark.org/svn/as3/LiveChr
omaKey/trunk/examples/pyramid.html
C http://www.libspark.org/svn/as3/LiveChr
omaKey/trunk/examples/minority.html
C http://www.libspark.org/svn/as3/LiveChr
omaKey/trunk/examples/exile.html
YAPC::Europe 2009 Lisbon 24
26. LivePointers
? Live Color Pointer Detection Library
? Uses Webcam as a 3D human interface
C No need to print AR marker PDF
? Any Color Pixel Cluster = Pointing Device
? Ex.
C Cluster #0 (250 pixels)
C RGB: 25D985 (hex)
C H: 152
C S: 0.83
C V: 0.85
YAPC::Europe 2009 Lisbon 26
28. Labeled Pointer Detection
? Labeled pointer guided by color code.
? Works as a human input
user interface device.
? Ex. a labeled pointer
C Name: ^fingercap ̄
C Color: 0x2197A9 (uint)
C Cost: approx US$1
YAPC::Europe 2009 Lisbon 28
29. Price is an advantage for UI
Wii Remote Controller Fingercap
US$35.96 US$1.00
I?m sure that Fingercap is definitely important
user interface device of very near future.
YAPC::Europe 2009 Lisbon 29
31. Corporate Perl in Japan
? Several major Japanese companies strongly
use Perl for their main business domains.
? DeNA (mobagame)
C Mobile SNS. 10+ mil users.
? Livedoor
C dankogai and miyagawa quit.
? Mixi
C SNS. 16+ mil users.
? Recruit
C Employs me. And more!
YAPC::Europe 2009 Lisbon 31
32. 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
C Web tech R&D, business dev, incubation
YAPC::Europe 2009 Lisbon 32
33. Japan Perl Association
? Established on April 2009.
C The Chair: Daisuke Maki (lestrrat)
C Focusing to support corporate use of Perl
and Perl hackers job changing.
? Hosts YAPC::Asia 2009 Tokyo.
C 2009.09.10 C 09.11 Autumn
C Shibuya.pm has hosted Y::A until 2008.
YAPC::Europe 2009 Lisbon 33
35. 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 *
C JavaScript library interface *
C RESTful XML / JSON-RPC protocols *
YAPC::Europe 2009 Lisbon 35
36. Apache Shindig
? An OpenSocial container implemention
by Apache incubation project.
? Consists of four parts:
C Gadget Container JavaScript
C Gadget Rendering Server
C OpenSocial Container JavaScript
C OpenSocial Data Server
? Java and PHP version of it released.
? No Perl version yet.
YAPC::Europe 2009 Lisbon 36
37. Importing Shindig to Perl
? We?re importing Shindig?s RPC Data API
handling servlets to Perl!
? Collaboration/partnership wanted.
A p i S e r v l e t . p m
Database Layer A p p D a t a H a n d l e r . p m
A p p D a t a S e r v i c e . p m
C o l l e c t i o n O p t i o n s . p m
Data Gadget D a t a R e q u e s t H a n d l e r . p m
SNS
RPC API Render D a t a S e r v i c e S e r v l e t . p m
Website
Servlet Servlet J s o n R p c S e r v l e t . p m
P e r s o n H a n d l e r . p m
P e r s o n S e r v i c e . p m
Perl Perl PHP
R e q u e s t I t e m . p m
R e s p o n s e I t e m . p m
Apache R e s t R e q u e s t I t e m . p m
R p c R e q u e s t I t e m . p m
:
YAPC::Europe 2009 Lisbon 37
38. Emoji
Picture characters commonly
used on mobile phones in Japan
YAPC::Europe 2009 Lisbon 38
39. Background
? 3 mobile phone carriers in Japan.
C NTT DoCoMo, KDDI and SoftBank.
C Vodafone has gone away from Japan.
? Each company has
defined their Emoji
character sets with
less compatibility.
? Most Japanese users
heavily use Emojis
on mobile email.
YAPC::Europe 2009 Lisbon 39
40. Private code points
? Each company uses their own code point in
PUA (private use area). Ex. ^heart ̄
? DoCoMo KDDI SoftBank
U+E6EC U+E595 U+E022
SJIS-F991 SJIS-F7B2 SJIS-F962
? We need translation maps for each pair of
Emoji sets.
YAPC::Europe 2009 Lisbon 40
43. SoftBank Emojis (351)
Some of Emojis are displayed like
animation GIFs on mobile phone devices.
YAPC::Europe 2009 Lisbon 43
44. Google?s code points
? Gmail supports ^emoticon ̄ characters.
? They also uses PUA again and has their
translation map from/to Japanese Emojis.
? Then, Google?s ^emoji4unicode ̄ project has
proposed unified code points of Japanese
Emojis to Unicode standard. Thanks!
? http://emoji4unicode.googlecode.com/
YAPC::Europe 2009 Lisbon 44
45. 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 ̄
YAPC::Europe 2009 Lisbon 45
46. Ex. Emoji for Dung
? DoCoMo (don?t have emoji for dung)
? KDDI PUA <U+E4F5>
? SoftBank PUA <U+E05A>
? Google PUA <U+FE4F4>
? Unicode Standard proposed
<U+1F410> ^DUNG ̄
YAPC::Europe 2009 Lisbon 46
47. Perl Modules Released
? Unicode::Emoji::E4U
C Emoji mappings based on emoji4unicode
project
C Pure Perl OO interface for the table
? Encode::JP::Emoji
C Emoji encodings and cross-mapping
tables in pure Perl
C Pure Perl encodings for Encode.pm
C XS (UCM) version of this was canceled.
YAPC::Europe 2009 Lisbon 47
48. Encode::JP::Emoji Usage
u 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.
YAPC::Europe 2009 Lisbon 48
49. MA5
Web Application Contest
http://mashupaward.jp/
YAPC::Europe 2009 Lisbon 49
50. Mashup Awards
? Largest web application development
contest in Japan since 2006.
? MA4 C 2008.06.03 C 09.16
(C) RECRUIT Co., Ltd. 2009/8/5 50
51. ChaMap C MA4 Grand Prix
Geo location based
chat communication
platform service
using Google Maps,
Language API and
some other APIs.
Real time translation
and read out in English.
http://www.chamap.net/
(C) RECRUIT Co., Ltd. 2009/8/5 51
52. Get 1,000,000 Yen on MA5!
See detail on http://mashupaward.jp/english/
about the previous MA4 contest last year.
YAPC::Europe 2009 Lisbon 52
54. 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! (P9,000 beer)
YAPC::Europe 2009 Lisbon 54