Get Programmatically Profile Picture Url from User Information List of Sharepoint

The information in the user information list is stored in the UserInfo table in the content database of the site. A user gets added to the user information list when he or she has accesses the site for the first time. In the user information list a user's email address, login name and name ,Picture are stored.

try
{
string LoginName = string.Empty;
string SiteUrl = SPContext.Current.Site.Url;
string Username = SPContext.Current.Web.CurrentUser.LoginName;
SPSite Site = new SPSite(SiteUrl);
string data = string.Empty;
using (SPWeb Web = Site.OpenWeb())
{
SPList List = Web.Lists["User Information List"];
SPQuery Query = new SPQuery();
Query.Query = "<Where><Eq><FieldRef Name = 'ID'/><Value Type='Text'>"+Username+"</Value></Eq></Where>";
SPListItemCollection ItemCollection;
ItemCollection = List.GetItems(Query);
if (ItemCollection.Count > 0)
{
foreach(SPListItem ListItem in ItemCollection)
{
if(ListItem["Picture"] != null)
{
data = ListItem["Picture"].ToString();
}
}
}
}
}
catch(Exception ex)
{
Context.Response.Output.Write("Error : " + ex.Message.ToString());
}