Text this: Object matching and recognition under semi-affine transformation and occlusion

  ______   _    _    _____      ______   ______   
 /_   _// | || | || |  __ \\   /_   _// |      \\ 
 `-| |,-  | || | || | |  \ ||   -| ||-  |  --  // 
   | ||   | \\_/ || | |__/ ||   _| ||_  |  --  \\ 
   |_||    \____//  |_____//   /_____// |______// 
   `-`'     `---`    -----`    `-----`  `------`