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	<title>Peter's blog &#187; Videos</title>
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		<title>A day at work flashes by my very eyes</title>
		<link>http://blog.peter.skarpetis.com/archives/2005/03/07/a-day-at-work-flashes-by-my-very-eyes/</link>
		<comments>http://blog.peter.skarpetis.com/archives/2005/03/07/a-day-at-work-flashes-by-my-very-eyes/#comments</comments>
		<pubDate>Mon, 07 Mar 2005 12:03:33 +0000</pubDate>
		<dc:creator>Peter Skarpetis</dc:creator>
				<category><![CDATA[Videos]]></category>

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		<description><![CDATA[A time lapse video of a day at work captured using an iBot webcam and some crontab trickery]]></description>
			<content:encoded><![CDATA[<p style="text-align:center;"><a href="http://peter.skarpetis.com/wordpress/wp-content/videos/2005-03-07-ibot2.avi"><img src="http://peter.skarpetis.com/wordpress/wp-content/videos/2005-03-07-ibot2-tm.jpg" height="240" width="320" border="1" align="none" hspace="8" vspace="8" alt="time lapse video of 7th March 2005 at the office" title="time lapse video of 7th March 2005 at the office" /></a></p>
<p>A day of my working life caught using time lapse video. Each frame represents one minute and the frame rate is 15 fps. Each 4 seconds of video is an hour of real  time. If you slow  the video down you can see a lot more detail.<br />
<strong><br />
</strong><span style="color:#00cc00;">There is a lot of darkness at the beginning of the video</span> (about 28 seconds) since  7:00 am is about the time work gets some daylight and the first frame represents 12:00 am.</p>
<p>The frames were captured on a Mac mini from 2 iBot webcams using a cmdline utility I wrote. A crontab entry takes a snapshot from each camera once a minute. The mpeg4 video was generated from the individual jpeg frames using mencoder from the <a href="http://www.mplayerhq.hu/homepage/design7/news.html">mplayer</a> package.</p>
<p>Requires divx plugin available from <a href="http://3ivx.com/" title="3ivx D4 4.5 - MPEG-4 Audio and Video Compression">3ivx</a><br />
<!-- technorati tags start -->
<p style="text-align:right;font-size:10px;">Technorati Tags: <a href="http://technorati.com/tag/time lapse" rel="tag">time lapse</a>, <a href="http://technorati.com/tag/video" rel="tag">video</a></p>
<p><!-- technorati tags end --></p>
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