<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>unitstep.net &#187; image processing</title>
	<atom:link href="http://unitstep.net/blog/category/image-processing/feed/" rel="self" type="application/rss+xml" />
	<link>http://unitstep.net</link>
	<description>the home of peter chng</description>
	<lastBuildDate>Mon, 06 Feb 2012 01:23:17 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.3.1</generator>
		<item>
		<title>Google moves to add facial recognition to search?</title>
		<link>http://unitstep.net/blog/2006/08/20/google-moves-to-add-facial-recognition-to-search/</link>
		<comments>http://unitstep.net/blog/2006/08/20/google-moves-to-add-facial-recognition-to-search/#comments</comments>
		<pubDate>Sun, 20 Aug 2006 17:42:13 +0000</pubDate>
		<dc:creator>Peter Chng</dc:creator>
				<category><![CDATA[google]]></category>
		<category><![CDATA[image processing]]></category>
		<category><![CDATA[privacy]]></category>
		<category><![CDATA[search engine]]></category>

		<guid isPermaLink="false">http://unitstep.net/blog/2006/08/20/google-moves-to-add-facial-recognition-to-search/</guid>
		<description><![CDATA[Google recently acquired Neven Vision, a company with lots of technology related to image-processing, specifically, facial recognition. The initial aim of this IP acquisition is to integrate it with Picasa, Google&#8217;s photo-organizing tool and online-photo sharing site. According to Google: &#8220;It could be as simple as detecting whether or not a photo contains a person, [...]]]></description>
			<content:encoded><![CDATA[<p>Google <a href="http://www.informationweek.com/news/showArticle.jhtml?articleID=192201732&#038;subSection=Breaking+News">recently acquired Neven Vision</a>, a company with lots of technology related to image-processing, specifically, facial recognition.  The initial aim of this IP acquisition is to integrate it with <a href="http://picasa.google.com/">Picasa</a>, Google&#8217;s photo-organizing tool and online-photo sharing site.  According to Google:</p>
<blockquote cite="http://www.informationweek.com/news/showArticle.jhtml?articleID=192201732&#038;subSection=Breaking+News"><p>&#8220;It could be as simple as detecting whether or not a photo contains a person, or, one day, as complex as recognizing people, places, and objects&#8230;&#8221;</p>
</blockquote>
<p>The article goes on to speculate that Google may use this technology to enable searching of people on the web by any photos of them that may be online.  Certainly, this wouldn&#8217;t be out of their league, and <a href="http://gigaom.com/2005/11/16/googles-riya-designs/">they&#8217;ve been interested</a> in this technology for some time.  Indeed, Sergey Brin, one of the co-founders of Google, has said that <a href="http://tailrank.com/posts/562949953800800/Google_Buys_Neven_Vision">image recognition</a> is something they&#8217;d like to do.  Despite the obvious usefulness of such a tool, it does raise privacy questions.</p>
<h3>Add it to the list</h3>
<p>Besides facial recognition, Google is also active in <a href="http://www.micropersuasion.com/2006/06/google_execs_hi.html">voice recognition</a> as well, and have hinted at <a href="http://news.bbc.co.uk/2/hi/technology/5084870.stm">using it serve up web ads</a> based on what&#8217;s playing on your TV.  (Seems far-fetched at present time)  Their OCR technology is also pretty decent, as <a href="http://books.google.com/">Google Book Search</a> is able to search the full text of many books online, that have had their pages scanned in &#8211; the service will also hilite the relevant passages, a neat feature.  All of these services are part of Google&#8217;s future plans to catalogue and make available for search, all forms of information, not just those that are presented as text on the web. </p>
<h3>Do no evil</h3>
<p>Of course, while Google has been getting attention from privacy advocates as of late, because of the huge amounts of information they collect from users, they&#8217;re one of the better companies when it comes to keeping your information private.  When the US DOJ tried to get search engine companies to turn over anonymized search queries for their users, all of them complied except for Google, which took the matter to court and won.  Thus, Google is probably one of the companies you should worry about less, as there are many others who have less or no respect for an individual&#8217;s privacy.  However, <a href="http://unitstep.net/blog/2006/08/07/aol-releases-search-queries-for-650000-users-in-blatant-disregard-for-privacy/">recent blunders by AOL</a> have done little to quell the fears of privacy advocates.</p>
<p>Facial recognition is almost certainly used by governments, as it&#8217;s an important tool for them.  So, what&#8217;s the big deal with Google getting it, then, if it&#8217;s already in use?  Well, the problem is that this signals the technology is becoming more available and pervasive, and indeed, as that happens, we will become more used to it.  The fact that anything you put on the Internet can, and will, be viewable by all is only driven home more by the use of this technology &#8211; some people still don&#8217;t realize this, though.</p>
<h3>Reasonable expectation of privacy</h3>
<p>While it&#8217;s probably true that when you go out in public, you have little to no expectation of privacy, I doubt that this is a good thing overall.  Facial recognition technology, when fully developed, and combined with a network of security cameras could enable <em>automated</em> tracking of a person&#8217;s whereabouts &#8211; no need for them to be carrying a cellphone or other tracking device.  Is this a good thing?  Some would argue it would better enable the tracking of criminals and terrorists, but I believe the potential for abuse is very real and something that needs to be addressed. </p>
<p>While I don&#8217;t think Google would abuse this technology, others certainly would, which is why I think people need to be aware of what&#8217;s going on and for companies like Google to be open about what they&#8217;re planning on doing with it.  </p>
<hr/>Copyright &copy; 2012 <strong><a href="http://unitstep.net">unitstep.net</a></strong>. This Feed is for personal non-commercial use only. If you are not reading this material in your news aggregator, the site you are looking at is guilty of copyright infringement. Please contact <strong><a href="mailto:webmaster@unitstep.net">webmaster@unitstep.net</a></strong> for more information.<br/><span style="float: right;font-size: 7pt"><a href="http://blog.taragana.com/index.php/archive/wordpress-plugins-provided-by-taraganacom/">Plugin</a> by <a href="http://www.taragana.com/">Taragana</a></span>]]></content:encoded>
			<wfw:commentRss>http://unitstep.net/blog/2006/08/20/google-moves-to-add-facial-recognition-to-search/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>An Overview of Image QA methods</title>
		<link>http://unitstep.net/blog/2006/06/13/an-overview-of-image-qa-methods/</link>
		<comments>http://unitstep.net/blog/2006/06/13/an-overview-of-image-qa-methods/#comments</comments>
		<pubDate>Tue, 13 Jun 2006 23:57:21 +0000</pubDate>
		<dc:creator>Peter Chng</dc:creator>
				<category><![CDATA[image processing]]></category>
		<category><![CDATA[School]]></category>

		<guid isPermaLink="false">http://www.unitstep.net/blog/2006/06/13/an-overview-of-image-qa-methods/</guid>
		<description><![CDATA[The following is a presentation I gave for the Multimedia Coding &#038; Communications Laboratory about current and proposed image quality assessment methods. It briefly covers the major types of methods, attempts to show the pros and cons of each, and also outlines the difficulties in producing a viable image QA method with clear advantages over [...]]]></description>
			<content:encoded><![CDATA[<p>The following is a <a href="http://www.unitstep.net/downloads/school/image-qa-presentation/">presentation</a> I gave for the <a href="http://www.ece.queensu.ca/hpages/labs/mcl/">Multimedia Coding &#038; Communications Laboratory</a> about current and proposed image quality assessment methods.  It briefly covers the major types of methods, attempts to show the pros and cons of each, and also outlines the difficulties in producing a viable image <abbr title="Quality Assessment">QA</abbr> method with clear advantages over traditional techniques.</p>
<p>The presentation is available at the following <abbr title="Uniform Resource Locator"><acronym class="uttInitialism" title="Uniform Resource Locator">URL</acronym></abbr>: <a href="/downloads/school/image-qa-presentation/">http://unitstep.net/downloads/school/image-qa-presentation/</a></p>
<p>A zip file of the presentation is also <a href="/downloads/school/image-qa-presentation/Image-QA-Presentation.zip">available</a>.  Just download, extract it (preserving the directory structure), and open the &#8220;index.html&#8221; file in your web browser.</p>
<p>The presentation uses the <a href="http://www.meyerweb.com/eric/tools/s5/">S5</a> slide show system, a nifty browser-based method designed by <a href="http://www.meyerweb.com/">Eric Meyer</a>.  Controls are similar to a regular slide show program, with the left and right arrow keys moving back and forward.  Hitting the &#8216;t&#8217; key will also convert the slides into a handout-mode, complete with my notes.  A full list of controls is <a href="http://www.meyerweb.com/eric/tools/s5/features.html">available here</a>.</p>
<hr/>Copyright &copy; 2012 <strong><a href="http://unitstep.net">unitstep.net</a></strong>. This Feed is for personal non-commercial use only. If you are not reading this material in your news aggregator, the site you are looking at is guilty of copyright infringement. Please contact <strong><a href="mailto:webmaster@unitstep.net">webmaster@unitstep.net</a></strong> for more information.<br/><span style="float: right;font-size: 7pt"><a href="http://blog.taragana.com/index.php/archive/wordpress-plugins-provided-by-taraganacom/">Plugin</a> by <a href="http://www.taragana.com/">Taragana</a></span>]]></content:encoded>
			<wfw:commentRss>http://unitstep.net/blog/2006/06/13/an-overview-of-image-qa-methods/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>

