De poort waar de student onderzoeker wordt

Over de bijdrage van Hans Coppens “Open aspecten van het Japanologie-curriculum” op het seminar “Open Minds”, Leuven, 12 januari 2006.

Hans Coppens, praktijkassistent en docent Japanologie aan de K.U.Leuven, heeft heel inspirerend gesproken over het open source model en zijn toepassingen op de studie Japanologie.

Je wordt gemakkelijk binnen de wereld van de Leuvense Japanologische studies gelokt, als je zelfs maar een blik werpt op de virtuele ‘poort’ van deze Leuvense opleiding.

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Convert photo camera movie to flash (flv)

Modern digital cameras often can be used quite successful as a video camera. The image quality is sometimes quite impressive. The only drawback remains the size of the video file produced. As a consequence you need a very big memory card and it is very hard to share your movies online (or to send them by e-mail). Even in our broadband age it is not nice to upload a 100MB file. I expect future generation cameras will solve this problem with build in mpeg4 compression. In the meantime however the only way to solve problem two is to do some post processing yourself. In this case I show you how a movie shot with a Canon Ixus 50 can be successfully put online by compressing it to a flash (flv) movie.

Some figures: movie length: 55 sec (640×480 pixels)
Size (Canon): 99 MB
Size (flv): 6.8 MB

Reduction: > 90%

To give you an example how things look after compression click on the picture below. It shows the original Canon movie scaled to 320×240 and compressed to FLV with mencoder (http://www.mplayerhq.com). The result is a 3.6MB file.

How I did it:

jeroen@fregaz:~/temp> mencoder pasta_maken_311205.avi -o video.flv -of lavf -ovc lavc -oac lavc -lavcopts vcodec=flv:vbitrate=500:autoaspect:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:precmp=2:cmp=2:subcmp=2:preme=2:turbo:acodec=mp3:abitrate=56 -vf scale=320:240 -srate 22050 -af lavcresample=22050

Update 02 January 2007. Please check this entry for the correct mencoder settings when using MPlayer 1.0rc1.

What’s Up? (world wide news)

Jeroen Wijering, die we nog kennen van zijn embedded flash video player, werkt op dit moment aan zijn afstudeerproject. "WhatsUp is a web application that tracks a large number of RSS news feeds. The sources of these feeds are displayed on this world map. Whenever any of the news feeds releases a new article, its title immediately pops up. Instead of listing previously released news, this application shows news as it is released, so you can see what is up right at this moment in the world.. Zijn project geeft een fascinerende blik op de bedrijfigheid in de wereld Het lijkt me minstens een acht waard.

Klik op het plaatje om het wereld nieuws live te zien.