<div>Hi guys,</div>
<div> </div>
<div>I will introduce something about my recent work tomorrow afternoon. The topic is "A Scheme of Watermarking Algorithm for Digital Vector Map".</div>
<div>Following is the abstract of presentation. Since it is not large enough, I don't make it an attachment.</div>
<div> </div>
<div>Cheers,</div>
<div> </div>
<div>Jacky</div>
<div>2012.9.25</div>
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</div>
<div> ABSTRACT</div>
<div> </div>
<div><font face="simsun,serif"><span style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;DISPLAY:inline!important;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;FLOAT:none;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">Protecting the copyrights of intelligent digital products is an urgent task around the world. One way to deter piracy</span><br style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<span style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;DISPLAY:inline!important;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;FLOAT:none;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">of these products is to make illegal copying very difficult or impossible by approaches such as encryption. A complimentary </span><br style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<span style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;DISPLAY:inline!important;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;FLOAT:none;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">approach is to embed digital watermarks into the those products. In this research, we analyse the properties of </span><br style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<span style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;DISPLAY:inline!important;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;FLOAT:none;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">GIS spatial data such as digital road maps and possible illegal uses of digital road maps and propose a blind watermarking </span><br style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<span style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;DISPLAY:inline!important;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;FLOAT:none;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">approach to protect the copyrighted GIS spatial data. Our approach uses the local information which is collected by a </span><br style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
</font>
<p style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;MARGIN:0px 0px 5px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WORD-WRAP:break-word;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<font face="simsun,serif">modified quadtree model to insert watermarks into the position data in the GIS spatial data. In this method, the digital </font></p>
<p style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;MARGIN:0px 0px 5px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WORD-WRAP:break-word;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<font face="simsun,serif">road map is partitioned into a hierarchy structure. Different points in quadtree model represent different subregions of</font></p>
<p style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;MARGIN:0px 0px 5px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WORD-WRAP:break-word;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<font face="simsun,serif">the map. The most important feature of our approach is that the illegal usage of only a small part of GIS spatial data, </font></p>
<p style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;MARGIN:0px 0px 5px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WORD-WRAP:break-word;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<font face="simsun,serif">which defeats most current watermarking techniques, can be detected. Finally, we use a real digital map digital road map </font></p>
<p style="TEXT-TRANSFORM:none;TEXT-INDENT:0px;MARGIN:0px 0px 5px;FONT:16px/24px ËÎÌå,'sans serif',tahoma,verdana,helvetica;WORD-WRAP:break-word;WHITE-SPACE:normal;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">
<font face="simsun,serif">as our GIS spatial data set to evaluate our proposed approach.</font></p><br class="Apple-interchange-newline"><br>-----------------------<br></div>
<div style="LINE-HEIGHT:23px;WIDTH:300px;FONT-SIZE:14px">
<div style="WIDTH:200px;FLOAT:left;CLEAR:right;FONT-SIZE:medium"><font face="Arial Black">Jakcy Jiang</font><i style="FONT-FAMILY:'Arial Black'"> </i><font style="LINE-HEIGHT:27px;FONT-FAMILY:'Arial Black'" face="Ó×Ô²">(</font><font style="LINE-HEIGHT:27px" face="¿¬Ìå, ¿¬Ìå_GB2312"><b>½ª¿</b></font><font style="LINE-HEIGHT:27px;FONT-FAMILY:'Arial Black'" face="Ó×Ô²">)</font>
<div style="FONT-FAMILY:Verdana;FONT-SIZE:x-small">Graduate</div></div><font face="Verdana"><img style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; WIDTH: 60px; FLOAT: right; CLEAR: right; VERTICAL-ALIGN: middle; BORDER-TOP: medium none; BORDER-RIGHT: medium none" src="http://files.cnblogs.com/kingwolfofsky/200px-SJTU_emblem.ico"></font></div>
<font style="LINE-HEIGHT:23px;FONT-FAMILY:'Arial Black';FONT-SIZE:14px">Shanghai Jiao Tong University</font><span style="LINE-HEIGHT:23px;FONT-FAMILY:Verdana;FONT-SIZE:14px"></span>
<div style="LINE-HEIGHT:23px;FONT-FAMILY:Verdana;FONT-SIZE:x-small">Department of Computer Science and Technology</div>
<div style="LINE-HEIGHT:23px;FONT-FAMILY:Verdana;FONT-SIZE:x-small">No.800 Dongchuan Road,Shanghai,P.R.China</div>
<div style="LINE-HEIGHT:23px;FONT-FAMILY:Verdana;FONT-SIZE:x-small">Tel:15000677334<br><a href="http://Email:jkai421@gmail.com/jkai@sjtu.edu.cn" target="_blank">Email:jkai421@gmail.com</a>(urgent and important)</div>
<div style="LINE-HEIGHT:23px;FONT-FAMILY:Verdana;FONT-SIZE:x-small"><a href="http://Email:jkai421@gmail.com/jkai@sjtu.edu.cn" target="_blank">jkai@sjtu.edu.cn</a>(normal)</div><br>