image sitemap, quale struttura più corretta ?

[pimps]

image sitemap, quale struttura più corretta ?

Spulciando in giro i protocolli per le sitemap di immagini mi sono imbattuto in due strutture

<image:image>
  <image:loc>xxxxxxxxx</image:loc>
  <image:title>xxxxxxxxxxxxxxxx</image:title>
  <image:caption>xxxxxxxxxxxxxx</image:caption>
</image:image>

e

<xsd:element name="image">
xsd:annotation
xsd:documentation
Encloses all information about a single image. Each URL (<loc> tag) can include up to 1,000 image:image tags.
</xsd:documentation>

</xsd:annotation>

xsd:complexType
xsd:sequence
<xsd:element name="loc" type="xsd:anyURI">
xsd:annotation
xsd:documentationThe URL of the image.</xsd:documentation>

</xsd:annotation>

</xsd:element>

<xsd:element name="caption" type="xsd:string" minOccurs="0">
xsd:annotation
xsd:documentationThe caption of the image.</xsd:documentation>

</xsd:annotation>

</xsd:element>

<xsd:element name="geo_location" type="xsd:string" minOccurs="0">
xsd:annotation
xsd:documentation
The geographic location of the image. For example, "Limerick, Ireland".
</xsd:documentation>

</xsd:annotation>

</xsd:element>

<xsd:element name="title" type="xsd:string" minOccurs="0">
xsd:annotation
xsd:documentationThe title of the image.</xsd:documentation>

</xsd:annotation>

</xsd:element>

<xsd:element name="license" type="xsd:anyURI" minOccurs="0">
xsd:annotation
xsd:documentationA URL to the license of the image.</xsd:documentation>

</xsd:annotation>

</xsd:element>

</xsd:sequence>

</xsd:complexType>

</xsd:element>

Qual'è il più corretto ?

[juanin]

Quello corretto è quello che si basa sulle specs di sitemaps.org http://www.sitemaps.org/protocol.html

<?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"  xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"> 
<url>   
<loc>http://example.com/sample.html</loc>      
<image:image>     
<image:loc>http://example.com/image.jpg</image:loc> 
</image:image>
<image:image>
<image:loc>http://example.com/photo.jpg</image:loc>
</image:image>
</url>
</urlset>

[pimps]

Grazie
chiedevo in quanto avevo trovato sugli schemas di google la seconda versione.