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<div class="title">PatternRecognition.FingerprintRecognition.Matchers.MQYW Class Reference</div> </div>
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<p>This algorithm, proposed by Medina-Pérez et al. in 2012, is an improved version of <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_q_y_w.html" title="An implementation of the minutiae matching algorithm proposed by Qi et al. in 2005.">QYW</a>.
<a href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w.html#details">More...</a></p>
<div class="dynheader">
Inheritance diagram for PatternRecognition.FingerprintRecognition.Matchers.MQYW:</div>
<div class="dyncontent">
<div class="center">
<img src="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w.png" usemap="#PatternRecognition.FingerprintRecognition.Matchers.MQYW_map" alt=""/>
<map id="PatternRecognition.FingerprintRecognition.Matchers.MQYW_map" name="PatternRecognition.FingerprintRecognition.Matchers.MQYW_map">
<area href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g.html" title="Provides a base class for implementations of the IMatcher&lt;FeatureType&gt; generic interface..." alt="PatternRecognition.FingerprintRecognition.Core.Matcher< FeatureType >" shape="rect" coords="0,56,454,80"/>
<area href="interface_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_i_minutia_matcher.html" title="Represents a minutia matching algorithm." alt="PatternRecognition.FingerprintRecognition.Core.IMinutiaMatcher" shape="rect" coords="464,56,918,80"/>
<area href="interface_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_i_matcher.html" alt="PatternRecognition.FingerprintRecognition.Core.IMatcher< FeatureType >" shape="rect" coords="0,0,454,24"/>
<area href="interface_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_i_matcher.html" title="Represents a non-generic fingerprint matching algorithm." alt="PatternRecognition.FingerprintRecognition.Core.IMatcher" shape="rect" coords="464,0,918,24"/>
</map>
</div></div>
<p><a href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><b>FingerprintRegion</b></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><b>MtiaMapper</b></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><b>MtiaPairComparer</b></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><b>PolygonMapper</b></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a8ec7f44618a667395b06e521d2b0a173"><td class="memItemLeft" align="right" valign="top">override double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w.html#a8ec7f44618a667395b06e521d2b0a173">Match</a> (<a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_feature_representation_1_1_qi2005_features.html">Qi2005Features</a> query, <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_feature_representation_1_1_qi2005_features.html">Qi2005Features</a> template)</td></tr>
<tr class="memdesc:a8ec7f44618a667395b06e521d2b0a173"><td class="mdescLeft"> </td><td class="mdescRight">Matches the specified fingerprint features. <a href="#a8ec7f44618a667395b06e521d2b0a173"></a><br/></td></tr>
<tr class="memitem:a02f2153725a8100f110fbe131b44d8f0"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w.html#a02f2153725a8100f110fbe131b44d8f0">Match</a> (object query, object template, out List< <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia_pair.html">MinutiaPair</a> > matchingMtiae)</td></tr>
<tr class="memdesc:a02f2153725a8100f110fbe131b44d8f0"><td class="mdescLeft"> </td><td class="mdescRight">Matches the specified fingerprint features and outputs the matching minutiae. <a href="#a02f2153725a8100f110fbe131b44d8f0"></a><br/></td></tr>
<tr class="inherit_header pub_methods_class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g.html">PatternRecognition.FingerprintRecognition.Core.Matcher< FeatureType ></a></td></tr>
<tr class="memitem:a986c2844df5f5cd8abd00d7f4ae7798c inherit pub_methods_class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g"><td class="memItemLeft" align="right" valign="top">abstract double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g.html#a986c2844df5f5cd8abd00d7f4ae7798c">Match</a> (FeatureType query, FeatureType template)</td></tr>
<tr class="memdesc:a986c2844df5f5cd8abd00d7f4ae7798c inherit pub_methods_class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g"><td class="mdescLeft"> </td><td class="mdescRight">When implemented in a derived class, matches the specified fingerprint features. <a href="#a986c2844df5f5cd8abd00d7f4ae7798c"></a><br/></td></tr>
<tr class="memitem:aaeff90f259cae2d928842fd36a2fb3f5 inherit pub_methods_class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g.html#aaeff90f259cae2d928842fd36a2fb3f5">Match</a> (object query, object template)</td></tr>
<tr class="memdesc:aaeff90f259cae2d928842fd36a2fb3f5 inherit pub_methods_class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_matcher-g"><td class="mdescLeft"> </td><td class="mdescRight">Matches the specified fingerprint features. <a href="#aaeff90f259cae2d928842fd36a2fb3f5"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="properties"></a>
Properties</h2></td></tr>
<tr class="memitem:ae9d9c31c21eec3c515f89c0403aa89d1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w.html#ae9d9c31c21eec3c515f89c0403aa89d1">GlobalDistThr</a><code> [get, set]</code></td></tr>
<tr class="memdesc:ae9d9c31c21eec3c515f89c0403aa89d1"><td class="mdescLeft"> </td><td class="mdescRight">Distance threshold for the global minutia matching step. <a href="#ae9d9c31c21eec3c515f89c0403aa89d1"></a><br/></td></tr>
<tr class="memitem:aaae4e335649b528ecccdb488375771b8"><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w.html#aaae4e335649b528ecccdb488375771b8">GlobalAngleThr</a><code> [get, set]</code></td></tr>
<tr class="memdesc:aaae4e335649b528ecccdb488375771b8"><td class="mdescLeft"> </td><td class="mdescRight">Angle threshold for the global minutia matching step. <a href="#aaae4e335649b528ecccdb488375771b8"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>This algorithm, proposed by Medina-Pérez et al. in 2012, is an improved version of <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_q_y_w.html" title="An implementation of the minutiae matching algorithm proposed by Qi et al. in 2005.">QYW</a>. </p>
<p>This algorithm was proposed by Medina-Pérez et al. in [1]. </p>
<p>Take into account that this algorithm is created to work with fingerprint images at 500 dpi. Proper modifications have to be made for different image resolutions. </p>
<p>References: </p>
<ol>
<li>
M. A. Medina-Pérez, M. García-Borroto, A. E. Gutierrez-Rodriguez, L. Altamirano-Robles, "Improving the multiple alignments strategy for fingerprint verification," Lecture Notes in Computer Science, vol. 7329, 2012. </li>
</ol>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a8ec7f44618a667395b06e521d2b0a173"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">override double PatternRecognition.FingerprintRecognition.Matchers.MQYW.Match </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_feature_representation_1_1_qi2005_features.html">Qi2005Features</a> </td>
<td class="paramname"><em>query</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_feature_representation_1_1_qi2005_features.html">Qi2005Features</a> </td>
<td class="paramname"><em>template</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Matches the specified fingerprint features. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">query</td><td>The query fingerprint features. </td></tr>
<tr><td class="paramname">template</td><td>The template fingerprint features. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>The fingerprint similarity value. </dd></dl>
</div>
</div>
<a class="anchor" id="a02f2153725a8100f110fbe131b44d8f0"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">double PatternRecognition.FingerprintRecognition.Matchers.MQYW.Match </td>
<td>(</td>
<td class="paramtype">object </td>
<td class="paramname"><em>query</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">object </td>
<td class="paramname"><em>template</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">out List< <a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_minutia_pair.html">MinutiaPair</a> > </td>
<td class="paramname"><em>matchingMtiae</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Matches the specified fingerprint features and outputs the matching minutiae. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">query</td><td>The query fingerprint features. </td></tr>
<tr><td class="paramname">template</td><td>The template fingerprint features. </td></tr>
<tr><td class="paramname">matchingMtiae</td><td>The matching minutiae. </td></tr>
</table>
</dd>
</dl>
<dl class="exception"><dt>Exceptions:</dt><dd>
<table class="exception">
<tr><td class="paramname">ArgumentOutOfRangeException</td><td>Thrown when the specified features has invalid type.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>The fingerprint similarity value. </dd></dl>
<p>Implements <a class="el" href="interface_pattern_recognition_1_1_fingerprint_recognition_1_1_core_1_1_i_minutia_matcher.html#aac70bf6930eb9c111454ca8c04fb57ba">PatternRecognition.FingerprintRecognition.Core.IMinutiaMatcher</a>.</p>
</div>
</div>
<hr/><h2>Property Documentation</h2>
<a class="anchor" id="aaae4e335649b528ecccdb488375771b8"></a>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">double PatternRecognition.FingerprintRecognition.Matchers.MQYW.GlobalAngleThr</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">get</span><span class="mlabel">set</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Angle threshold for the global minutia matching step. </p>
<p>This threshold is used to compare angles in the global minutia matching step. For more information refer to the original paper. </p>
</div>
</div>
<a class="anchor" id="ae9d9c31c21eec3c515f89c0403aa89d1"></a>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">int PatternRecognition.FingerprintRecognition.Matchers.MQYW.GlobalDistThr</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">get</span><span class="mlabel">set</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Distance threshold for the global minutia matching step. </p>
<p>This threshold is used to compare minutia distances in the global minutia matching step. For more information refer to the original paper. </p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>D:/Migue/Code/FingerprintRecognition/CodeProject/[2012-05-16] FingerprintRecognition/FingerprintRecognition/FR.Qi2005/MQYW.cs</li>
</ul>
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<li class="navelem"><a class="el" href="namespace_pattern_recognition.html">PatternRecognition</a></li><li class="navelem"><a class="el" href="namespace_pattern_recognition_1_1_fingerprint_recognition.html">FingerprintRecognition</a></li><li class="navelem"><a class="el" href="namespace_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers.html">Matchers</a></li><li class="navelem"><a class="el" href="class_pattern_recognition_1_1_fingerprint_recognition_1_1_matchers_1_1_m_q_y_w.html">MQYW</a></li>
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